diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-ppc.c')
| -rw-r--r-- | binutils-2.24/bfd/elf32-ppc.c | 10057 |
1 files changed, 0 insertions, 10057 deletions
diff --git a/binutils-2.24/bfd/elf32-ppc.c b/binutils-2.24/bfd/elf32-ppc.c deleted file mode 100644 index 63928dc0..00000000 --- a/binutils-2.24/bfd/elf32-ppc.c +++ /dev/null @@ -1,10057 +0,0 @@ -/* PowerPC-specific support for 32-bit ELF - Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, - 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 - Free Software Foundation, Inc. - Written by Ian Lance Taylor, Cygnus Support. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the - Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, - Boston, MA 02110-1301, USA. */ - - -/* This file is based on a preliminary PowerPC ELF ABI. The - information may not match the final PowerPC ELF ABI. It includes - suggestions from the in-progress Embedded PowerPC ABI, and that - information may also not match. */ - -#include "sysdep.h" -#include <stdarg.h> -#include "bfd.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/ppc.h" -#include "elf32-ppc.h" -#include "elf-vxworks.h" -#include "dwarf2.h" -#include "elf-linux-psinfo.h" - -typedef enum split16_format_type -{ - split16a_type = 0, - split16d_type -} -split16_format_type; - -/* RELA relocations are used here. */ - -static bfd_reloc_status_type ppc_elf_addr16_ha_reloc - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type ppc_elf_unhandled_reloc - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static void ppc_elf_vle_split16 - (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type); - -/* Branch prediction bit for branch taken relocs. */ -#define BRANCH_PREDICT_BIT 0x200000 -/* Mask to set RA in memory instructions. */ -#define RA_REGISTER_MASK 0x001f0000 -/* Value to shift register by to insert RA. */ -#define RA_REGISTER_SHIFT 16 - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ -#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" - -/* For old-style PLT. */ -/* The number of single-slot PLT entries (the rest use two slots). */ -#define PLT_NUM_SINGLE_ENTRIES 8192 - -/* For new-style .glink and .plt. */ -#define GLINK_PLTRESOLVE 16*4 -#define GLINK_ENTRY_SIZE 4*4 -#define TLS_GET_ADDR_GLINK_SIZE 12*4 - -/* VxWorks uses its own plt layout, filled in by the static linker. */ - -/* The standard VxWorks PLT entry. */ -#define VXWORKS_PLT_ENTRY_SIZE 32 -static const bfd_vma ppc_elf_vxworks_plt_entry - [VXWORKS_PLT_ENTRY_SIZE / 4] = - { - 0x3d800000, /* lis r12,0 */ - 0x818c0000, /* lwz r12,0(r12) */ - 0x7d8903a6, /* mtctr r12 */ - 0x4e800420, /* bctr */ - 0x39600000, /* li r11,0 */ - 0x48000000, /* b 14 <.PLT0resolve+0x4> */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - }; -static const bfd_vma ppc_elf_vxworks_pic_plt_entry - [VXWORKS_PLT_ENTRY_SIZE / 4] = - { - 0x3d9e0000, /* addis r12,r30,0 */ - 0x818c0000, /* lwz r12,0(r12) */ - 0x7d8903a6, /* mtctr r12 */ - 0x4e800420, /* bctr */ - 0x39600000, /* li r11,0 */ - 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - }; - -/* The initial VxWorks PLT entry. */ -#define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32 -static const bfd_vma ppc_elf_vxworks_plt0_entry - [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = - { - 0x3d800000, /* lis r12,0 */ - 0x398c0000, /* addi r12,r12,0 */ - 0x800c0008, /* lwz r0,8(r12) */ - 0x7c0903a6, /* mtctr r0 */ - 0x818c0004, /* lwz r12,4(r12) */ - 0x4e800420, /* bctr */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - }; -static const bfd_vma ppc_elf_vxworks_pic_plt0_entry - [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = - { - 0x819e0008, /* lwz r12,8(r30) */ - 0x7d8903a6, /* mtctr r12 */ - 0x819e0004, /* lwz r12,4(r30) */ - 0x4e800420, /* bctr */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - 0x60000000, /* nop */ - }; - -/* For executables, we have some additional relocations in - .rela.plt.unloaded, for the kernel loader. */ - -/* The number of non-JMP_SLOT relocations per PLT0 slot. */ -#define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3 -/* The number of relocations in the PLTResolve slot. */ -#define VXWORKS_PLTRESOLVE_RELOCS 2 -/* The number of relocations in the PLTResolve slot when when creating - a shared library. */ -#define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0 - -/* Some instructions. */ -#define ADDIS_11_11 0x3d6b0000 -#define ADDIS_11_30 0x3d7e0000 -#define ADDIS_12_12 0x3d8c0000 -#define ADDI_11_11 0x396b0000 -#define ADD_0_11_11 0x7c0b5a14 -#define ADD_3_12_2 0x7c6c1214 -#define ADD_11_0_11 0x7d605a14 -#define B 0x48000000 -#define BCL_20_31 0x429f0005 -#define BCTR 0x4e800420 -#define BEQLR 0x4d820020 -#define CMPWI_11_0 0x2c0b0000 -#define LIS_11 0x3d600000 -#define LIS_12 0x3d800000 -#define LWZU_0_12 0x840c0000 -#define LWZ_0_12 0x800c0000 -#define LWZ_11_3 0x81630000 -#define LWZ_11_11 0x816b0000 -#define LWZ_11_30 0x817e0000 -#define LWZ_12_3 0x81830000 -#define LWZ_12_12 0x818c0000 -#define MR_0_3 0x7c601b78 -#define MR_3_0 0x7c030378 -#define MFLR_0 0x7c0802a6 -#define MFLR_12 0x7d8802a6 -#define MTCTR_0 0x7c0903a6 -#define MTCTR_11 0x7d6903a6 -#define MTLR_0 0x7c0803a6 -#define NOP 0x60000000 -#define SUB_11_11_12 0x7d6c5850 - -/* Offset of tp and dtp pointers from start of TLS block. */ -#define TP_OFFSET 0x7000 -#define DTP_OFFSET 0x8000 - -/* The value of a defined global symbol. */ -#define SYM_VAL(SYM) \ - ((SYM)->root.u.def.section->output_section->vma \ - + (SYM)->root.u.def.section->output_offset \ - + (SYM)->root.u.def.value) - -static reloc_howto_type *ppc_elf_howto_table[R_PPC_max]; - -static reloc_howto_type ppc_elf_howto_raw[] = { - /* This reloc does nothing. */ - HOWTO (R_PPC_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_NONE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A standard 32 bit relocation. */ - HOWTO (R_PPC_ADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An absolute 26 bit branch; the lower two bits must be zero. - FIXME: we don't check that, we just clear them. */ - HOWTO (R_PPC_ADDR24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR24", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A standard 16 bit relocation. */ - HOWTO (R_PPC_ADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit relocation without overflow. */ - HOWTO (R_PPC_ADDR16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont,/* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The high order 16 bits of an address. */ - HOWTO (R_PPC_ADDR16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The high order 16 bits of an address, plus 1 if the contents of - the low 16 bits, treated as a signed number, is negative. */ - HOWTO (R_PPC_ADDR16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_ADDR16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An absolute 16 bit branch; the lower two bits must be zero. - FIXME: we don't check that, we just clear them. */ - HOWTO (R_PPC_ADDR14, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR14", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An absolute 16 bit branch, for which bit 10 should be set to - indicate that the branch is expected to be taken. The lower two - bits must be zero. */ - HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR14_BRTAKEN",/* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An absolute 16 bit branch, for which bit 10 should be set to - indicate that the branch is not expected to be taken. The lower - two bits must be zero. */ - HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_ADDR14_BRNTAKEN",/* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A relative 26 bit branch; the lower two bits must be zero. */ - HOWTO (R_PPC_REL24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL24", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 16 bit branch; the lower two bits must be zero. */ - HOWTO (R_PPC_REL14, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL14", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 16 bit branch. Bit 10 should be set to indicate that - the branch is expected to be taken. The lower two bits must be - zero. */ - HOWTO (R_PPC_REL14_BRTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL14_BRTAKEN", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 16 bit branch. Bit 10 should be set to indicate that - the branch is not expected to be taken. The lower two bits must - be zero. */ - HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL14_BRNTAKEN",/* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16, but referring to the GOT table entry for the - symbol. */ - HOWTO (R_PPC_GOT16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_GOT16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_PPC_GOT16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_GOT16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_PPC_GOT16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_GOT16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_PPC_GOT16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_GOT16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_REL24, but referring to the procedure linkage table - entry for the symbol. */ - HOWTO (R_PPC_PLTREL24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_PLTREL24", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* This is used only by the dynamic linker. The symbol should exist - both in the object being run and in some shared library. The - dynamic linker copies the data addressed by the symbol from the - shared library into the object, because the object being - run has to have the data at some particular address. */ - HOWTO (R_PPC_COPY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_COPY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR32, but used when setting global offset table - entries. */ - HOWTO (R_PPC_GLOB_DAT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_GLOB_DAT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Marks a procedure linkage table entry for a symbol. */ - HOWTO (R_PPC_JMP_SLOT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_JMP_SLOT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Used only by the dynamic linker. When the object is run, this - longword is set to the load address of the object, plus the - addend. */ - HOWTO (R_PPC_RELATIVE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_RELATIVE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_REL24, but uses the value of the symbol within the - object rather than the final value. Normally used for - _GLOBAL_OFFSET_TABLE_. */ - HOWTO (R_PPC_LOCAL24PC, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_LOCAL24PC", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x3fffffc, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* Like R_PPC_ADDR32, but may be unaligned. */ - HOWTO (R_PPC_UADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_UADDR32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16, but may be unaligned. */ - HOWTO (R_PPC_UADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_UADDR16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 32-bit PC relative */ - HOWTO (R_PPC_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* 32-bit relocation to the symbol's procedure linkage table. - FIXME: not supported. */ - HOWTO (R_PPC_PLT32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_PLT32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 32-bit PC relative relocation to the symbol's procedure linkage table. - FIXME: not supported. */ - HOWTO (R_PPC_PLTREL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_PLTREL32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for - the symbol. */ - HOWTO (R_PPC_PLT16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_PLT16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for - the symbol. */ - HOWTO (R_PPC_PLT16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_PLT16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for - the symbol. */ - HOWTO (R_PPC_PLT16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_PLT16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with - small data items. */ - HOWTO (R_PPC_SDAREL16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_SDAREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16-bit section relative relocation. */ - HOWTO (R_PPC_SECTOFF, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_SECTOFF", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16-bit lower half section relative relocation. */ - HOWTO (R_PPC_SECTOFF_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_SECTOFF_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16-bit upper half section relative relocation. */ - HOWTO (R_PPC_SECTOFF_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_SECTOFF_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16-bit upper half adjusted section relative relocation. */ - HOWTO (R_PPC_SECTOFF_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_SECTOFF_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Marker relocs for TLS. */ - HOWTO (R_PPC_TLS, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_TLS", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_PPC_TLSGD, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_TLSGD", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_PPC_TLSLD, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_TLSLD", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Computes the load module index of the load module that contains the - definition of its TLS sym. */ - HOWTO (R_PPC_DTPMOD32, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPMOD32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Computes a dtv-relative displacement, the difference between the value - of sym+add and the base address of the thread-local storage block that - contains the definition of sym, minus 0x8000. */ - HOWTO (R_PPC_DTPREL32, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPREL32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit dtprel reloc. */ - HOWTO (R_PPC_DTPREL16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like DTPREL16, but no overflow. */ - HOWTO (R_PPC_DTPREL16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPREL16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like DTPREL16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_DTPREL16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPREL16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like DTPREL16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_DTPREL16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_DTPREL16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Computes a tp-relative displacement, the difference between the value of - sym+add and the value of the thread pointer (r13). */ - HOWTO (R_PPC_TPREL32, - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_TPREL32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit tprel reloc. */ - HOWTO (R_PPC_TPREL16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_TPREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like TPREL16, but no overflow. */ - HOWTO (R_PPC_TPREL16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_TPREL16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like TPREL16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_TPREL16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_TPREL16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like TPREL16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_TPREL16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_TPREL16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Allocates two contiguous entries in the GOT to hold a tls_index structure, - with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset - to the first entry. */ - HOWTO (R_PPC_GOT_TLSGD16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSGD16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSGD16, but no overflow. */ - HOWTO (R_PPC_GOT_TLSGD16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSGD16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_GOT_TLSGD16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSGD16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_GOT_TLSGD16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSGD16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Allocates two contiguous entries in the GOT to hold a tls_index structure, - with values (sym+add)@dtpmod and zero, and computes the offset to the - first entry. */ - HOWTO (R_PPC_GOT_TLSLD16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSLD16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSLD16, but no overflow. */ - HOWTO (R_PPC_GOT_TLSLD16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSLD16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_GOT_TLSLD16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSLD16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_GOT_TLSLD16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TLSLD16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes - the offset to the entry. */ - HOWTO (R_PPC_GOT_DTPREL16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_DTPREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_DTPREL16, but no overflow. */ - HOWTO (R_PPC_GOT_DTPREL16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_DTPREL16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_GOT_DTPREL16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_DTPREL16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_GOT_DTPREL16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_DTPREL16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the - offset to the entry. */ - HOWTO (R_PPC_GOT_TPREL16, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TPREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TPREL16, but no overflow. */ - HOWTO (R_PPC_GOT_TPREL16_LO, - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TPREL16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ - HOWTO (R_PPC_GOT_TPREL16_HI, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TPREL16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ - HOWTO (R_PPC_GOT_TPREL16_HA, - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_unhandled_reloc, /* special_function */ - "R_PPC_GOT_TPREL16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The remaining relocs are from the Embedded ELF ABI, and are not - in the SVR4 ELF ABI. */ - - /* 32 bit value resulting from the addend minus the symbol. */ - HOWTO (R_PPC_EMB_NADDR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_NADDR32", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16 bit value resulting from the addend minus the symbol. */ - HOWTO (R_PPC_EMB_NADDR16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_NADDR16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16 bit value resulting from the addend minus the symbol. */ - HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont,/* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_ADDR16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The high order 16 bits of the addend minus the symbol. */ - HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_NADDR16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The high order 16 bits of the result of the addend minus the address, - plus 1 if the contents of the low 16 bits, treated as a signed number, - is negative. */ - HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_EMB_NADDR16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16 bit value resulting from allocating a 4 byte word to hold an - address in the .sdata section, and returning the offset from - _SDA_BASE_ for that relocation. */ - HOWTO (R_PPC_EMB_SDAI16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_SDAI16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* 16 bit value resulting from allocating a 4 byte word to hold an - address in the .sdata2 section, and returning the offset from - _SDA2_BASE_ for that relocation. */ - HOWTO (R_PPC_EMB_SDA2I16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_SDA2I16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with - small data items. */ - HOWTO (R_PPC_EMB_SDA2REL, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_SDA2REL", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit - signed offset from the appropriate base, and filling in the register - field with the appropriate register (0, 2, or 13). */ - HOWTO (R_PPC_EMB_SDA21, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_SDA21", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Relocation not handled: R_PPC_EMB_MRKREF */ - /* Relocation not handled: R_PPC_EMB_RELSEC16 */ - /* Relocation not handled: R_PPC_EMB_RELST_LO */ - /* Relocation not handled: R_PPC_EMB_RELST_HI */ - /* Relocation not handled: R_PPC_EMB_RELST_HA */ - /* Relocation not handled: R_PPC_EMB_BIT_FLD */ - - /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling - in the 16 bit signed offset from the appropriate base, and filling in the - register field with the appropriate register (0, 2, or 13). */ - HOWTO (R_PPC_EMB_RELSDA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_EMB_RELSDA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A relative 8 bit branch. */ - HOWTO (R_PPC_VLE_REL8, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_REL8", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 15 bit branch. */ - HOWTO (R_PPC_VLE_REL15, /* type */ - 1, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 15, /* bitsize */ - TRUE, /* pc_relative */ - 1, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_REL15", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xfe, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 24 bit branch. */ - HOWTO (R_PPC_VLE_REL24, /* type */ - 1, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - TRUE, /* pc_relative */ - 1, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_REL24", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1fffffe, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* The 16 LSBS in split16a format. */ - HOWTO (R_PPC_VLE_LO16A, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_LO16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The 16 LSBS in split16d format. */ - HOWTO (R_PPC_VLE_LO16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_LO16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 split16a format. */ - HOWTO (R_PPC_VLE_HI16A, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_HI16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 split16d format. */ - HOWTO (R_PPC_VLE_HI16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_HI16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 (High Adjusted) in split16a format. */ - HOWTO (R_PPC_VLE_HA16A, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_HA16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 (High Adjusted) in split16d format. */ - HOWTO (R_PPC_VLE_HA16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_HA16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* This reloc does nothing. */ - HOWTO (R_PPC_VLE_SDA21, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDA21", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* This reloc does nothing. */ - HOWTO (R_PPC_VLE_SDA21_LO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDA21_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */ - HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_LO16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */ - /* This reloc does nothing. */ - HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_LO16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */ - HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_HI16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */ - HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_HI16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */ - HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_HA16A", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f007ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */ - HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_VLE_SDAREL_HA16D", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0x1f07ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_PPC_IRELATIVE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_IRELATIVE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit relative relocation. */ - HOWTO (R_PPC_REL16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A 16 bit relative relocation without overflow. */ - HOWTO (R_PPC_REL16_LO, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont,/* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL16_LO", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* The high order 16 bits of a relative address. */ - HOWTO (R_PPC_REL16_HI, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_REL16_HI", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* The high order 16 bits of a relative address, plus 1 if the contents of - the low 16 bits, treated as a signed number, is negative. */ - HOWTO (R_PPC_REL16_HA, /* type */ - 16, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - ppc_elf_addr16_ha_reloc, /* special_function */ - "R_PPC_REL16_HA", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable hierarchy. */ - HOWTO (R_PPC_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_PPC_GNU_VTINHERIT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable member usage. */ - HOWTO (R_PPC_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_PPC_GNU_VTENTRY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Phony reloc to handle AIX style TOC entries. */ - HOWTO (R_PPC_TOC16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_PPC_TOC16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ -}; - -/* External 32-bit PPC structure for PRPSINFO. This structure is - ABI-defined, thus we choose to use char arrays here in order to - avoid dealing with different types in different architectures. - - The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while - most non-PPC architectures use `short int'. - - This structure will ultimately be written in the corefile's note - section, as the PRPSINFO. */ - -struct elf_external_ppc_linux_prpsinfo32 - { - char pr_state; /* Numeric process state. */ - char pr_sname; /* Char for pr_state. */ - char pr_zomb; /* Zombie. */ - char pr_nice; /* Nice val. */ - char pr_flag[4]; /* Flags. */ - char pr_uid[4]; - char pr_gid[4]; - char pr_pid[4]; - char pr_ppid[4]; - char pr_pgrp[4]; - char pr_sid[4]; - char pr_fname[16]; /* Filename of executable. */ - char pr_psargs[80]; /* Initial part of arg list. */ - }; - -/* Helper macro to swap (properly handling endianess) things from the - `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32' - structure. - - Note that FROM should be a pointer, and TO should be the explicit type. */ - -#define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \ - do \ - { \ - H_PUT_8 (abfd, from->pr_state, &to.pr_state); \ - H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \ - H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \ - H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \ - H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \ - H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \ - H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \ - H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \ - H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \ - H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \ - H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \ - strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \ - strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \ - } while (0) - - -/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ - -static void -ppc_elf_howto_init (void) -{ - unsigned int i, type; - - for (i = 0; - i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); - i++) - { - type = ppc_elf_howto_raw[i].type; - if (type >= (sizeof (ppc_elf_howto_table) - / sizeof (ppc_elf_howto_table[0]))) - abort (); - ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; - } -} - -static reloc_howto_type * -ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - enum elf_ppc_reloc_type r; - - /* Initialize howto table if not already done. */ - if (!ppc_elf_howto_table[R_PPC_ADDR32]) - ppc_elf_howto_init (); - - switch (code) - { - default: - return NULL; - - case BFD_RELOC_NONE: r = R_PPC_NONE; break; - case BFD_RELOC_32: r = R_PPC_ADDR32; break; - case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; - case BFD_RELOC_PPC64_ADDR16_DS: - case BFD_RELOC_16: r = R_PPC_ADDR16; break; - case BFD_RELOC_PPC64_ADDR16_LO_DS: - case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; - case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; - case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; - case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; - case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; - case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; - case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; - case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; - case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; - case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; - case BFD_RELOC_PPC64_GOT16_DS: - case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; - case BFD_RELOC_PPC64_GOT16_LO_DS: - case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; - case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; - case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; - case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; - case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; - case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; - case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; - case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; - case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; - case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; - case BFD_RELOC_PPC64_PLT16_LO_DS: - case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; - case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; - case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; - case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; - case BFD_RELOC_PPC64_SECTOFF_DS: - case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; - case BFD_RELOC_PPC64_SECTOFF_LO_DS: - case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; - case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; - case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; - case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; - case BFD_RELOC_PPC64_TOC16_DS: - case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; - case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; - case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break; - case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break; - case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; - case BFD_RELOC_PPC64_TPREL16_DS: - case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; - case BFD_RELOC_PPC64_TPREL16_LO_DS: - case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; - case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; - case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; - case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; - case BFD_RELOC_PPC64_DTPREL16_DS: - case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; - case BFD_RELOC_PPC64_DTPREL16_LO_DS: - case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; - case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; - case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; - case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; - case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; - case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; - case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; - case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; - case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; - case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; - case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; - case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; - case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; - case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; - case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; - case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; - case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; - case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; - case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; - case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; - case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; - case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; - case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; - case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; - case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; - case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; - case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; - case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; - case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; - case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; - case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; - case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; - case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; - case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; - case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; - case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; - case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break; - case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break; - case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break; - case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break; - case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break; - case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break; - case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break; - case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break; - case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break; - case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break; - case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break; - case BFD_RELOC_PPC_VLE_SDAREL_LO16A: - r = R_PPC_VLE_SDAREL_LO16A; - break; - case BFD_RELOC_PPC_VLE_SDAREL_LO16D: - r = R_PPC_VLE_SDAREL_LO16D; - break; - case BFD_RELOC_PPC_VLE_SDAREL_HI16A: - r = R_PPC_VLE_SDAREL_HI16A; - break; - case BFD_RELOC_PPC_VLE_SDAREL_HI16D: - r = R_PPC_VLE_SDAREL_HI16D; - break; - case BFD_RELOC_PPC_VLE_SDAREL_HA16A: - r = R_PPC_VLE_SDAREL_HA16A; - break; - case BFD_RELOC_PPC_VLE_SDAREL_HA16D: - r = R_PPC_VLE_SDAREL_HA16D; - break; - case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break; - case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break; - case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break; - case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break; - case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; - case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; - } - - return ppc_elf_howto_table[r]; -}; - -static reloc_howto_type * -ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, - const char *r_name) -{ - unsigned int i; - - for (i = 0; - i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); - i++) - if (ppc_elf_howto_raw[i].name != NULL - && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0) - return &ppc_elf_howto_raw[i]; - - return NULL; -} - -/* Set the howto pointer for a PowerPC ELF reloc. */ - -static void -ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, - arelent *cache_ptr, - Elf_Internal_Rela *dst) -{ - /* Initialize howto table if not already done. */ - if (!ppc_elf_howto_table[R_PPC_ADDR32]) - ppc_elf_howto_init (); - - BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); - cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; - - /* Just because the above assert didn't trigger doesn't mean that - ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */ - if (!cache_ptr->howto) - { - (*_bfd_error_handler) (_("%B: invalid relocation type %d"), - abfd, ELF32_R_TYPE (dst->r_info)); - bfd_set_error (bfd_error_bad_value); - - cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE]; - } -} - -/* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */ - -static bfd_reloc_status_type -ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, - arelent *reloc_entry, - asymbol *symbol, - void *data ATTRIBUTE_UNUSED, - asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - bfd_vma relocation; - - if (output_bfd != NULL) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) - return bfd_reloc_outofrange; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - if (reloc_entry->howto->pc_relative) - relocation -= reloc_entry->address; - - reloc_entry->addend += (relocation & 0x8000) << 1; - - return bfd_reloc_continue; -} - -static bfd_reloc_status_type -ppc_elf_unhandled_reloc (bfd *abfd, - arelent *reloc_entry, - asymbol *symbol, - void *data, - asection *input_section, - bfd *output_bfd, - char **error_message) -{ - /* If this is a relocatable link (output_bfd test tells us), just - call the generic function. Any adjustment will be done at final - link time. */ - if (output_bfd != NULL) - return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); - - if (error_message != NULL) - { - static char buf[60]; - sprintf (buf, _("generic linker can't handle %s"), - reloc_entry->howto->name); - *error_message = buf; - } - return bfd_reloc_dangerous; -} - -/* Sections created by the linker. */ - -typedef struct elf_linker_section -{ - /* Pointer to the bfd section. */ - asection *section; - /* Section name. */ - const char *name; - /* Associated bss section name. */ - const char *bss_name; - /* Associated symbol name. */ - const char *sym_name; - /* Associated symbol. */ - struct elf_link_hash_entry *sym; -} elf_linker_section_t; - -/* Linked list of allocated pointer entries. This hangs off of the - symbol lists, and provides allows us to return different pointers, - based on different addend's. */ - -typedef struct elf_linker_section_pointers -{ - /* next allocated pointer for this symbol */ - struct elf_linker_section_pointers *next; - /* offset of pointer from beginning of section */ - bfd_vma offset; - /* addend used */ - bfd_vma addend; - /* which linker section this is */ - elf_linker_section_t *lsect; -} elf_linker_section_pointers_t; - -struct ppc_elf_obj_tdata -{ - struct elf_obj_tdata elf; - - /* A mapping from local symbols to offsets into the various linker - sections added. This is index by the symbol index. */ - elf_linker_section_pointers_t **linker_section_pointers; - - /* Flags used to auto-detect plt type. */ - unsigned int makes_plt_call : 1; - unsigned int has_rel16 : 1; -}; - -#define ppc_elf_tdata(bfd) \ - ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) - -#define elf_local_ptr_offsets(bfd) \ - (ppc_elf_tdata (bfd)->linker_section_pointers) - -#define is_ppc_elf(bfd) \ - (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ - && elf_object_id (bfd) == PPC32_ELF_DATA) - -/* Override the generic function because we store some extras. */ - -static bfd_boolean -ppc_elf_mkobject (bfd *abfd) -{ - return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata), - PPC32_ELF_DATA); -} - -/* Fix bad default arch selected for a 32 bit input bfd when the - default is 64 bit. */ - -static bfd_boolean -ppc_elf_object_p (bfd *abfd) -{ - if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64) - { - Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); - - if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) - { - /* Relies on arch after 64 bit default being 32 bit default. */ - abfd->arch_info = abfd->arch_info->next; - BFD_ASSERT (abfd->arch_info->bits_per_word == 32); - } - } - return TRUE; -} - -/* Function to set whether a module needs the -mrelocatable bit set. */ - -static bfd_boolean -ppc_elf_set_private_flags (bfd *abfd, flagword flags) -{ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = TRUE; - return TRUE; -} - -/* Support for core dump NOTE sections. */ - -static bfd_boolean -ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) -{ - int offset; - unsigned int size; - - switch (note->descsz) - { - default: - return FALSE; - - case 268: /* Linux/PPC. */ - /* pr_cursig */ - elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); - - /* pr_pid */ - elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); - - /* pr_reg */ - offset = 72; - size = 192; - - break; - } - - /* Make a ".reg/999" section. */ - return _bfd_elfcore_make_pseudosection (abfd, ".reg", - size, note->descpos + offset); -} - -static bfd_boolean -ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) -{ - switch (note->descsz) - { - default: - return FALSE; - - case 128: /* Linux/PPC elf_prpsinfo. */ - elf_tdata (abfd)->core->pid - = bfd_get_32 (abfd, note->descdata + 16); - elf_tdata (abfd)->core->program - = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); - elf_tdata (abfd)->core->command - = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); - } - - /* Note that for some reason, a spurious space is tacked - onto the end of the args in some (at least one anyway) - implementations, so strip it off if it exists. */ - - { - char *command = elf_tdata (abfd)->core->command; - int n = strlen (command); - - if (0 < n && command[n - 1] == ' ') - command[n - 1] = '\0'; - } - - return TRUE; -} - -char * -elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz, - const struct elf_internal_linux_prpsinfo *prpsinfo) -{ - struct elf_external_ppc_linux_prpsinfo32 data; - - memset (&data, 0, sizeof (data)); - PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data); - - return elfcore_write_note (abfd, buf, bufsiz, - "CORE", NT_PRPSINFO, &data, sizeof (data)); -} - -static char * -ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...) -{ - switch (note_type) - { - default: - return NULL; - - case NT_PRPSINFO: - { - char data[128]; - va_list ap; - - va_start (ap, note_type); - memset (data, 0, sizeof (data)); - strncpy (data + 32, va_arg (ap, const char *), 16); - strncpy (data + 48, va_arg (ap, const char *), 80); - va_end (ap); - return elfcore_write_note (abfd, buf, bufsiz, - "CORE", note_type, data, sizeof (data)); - } - - case NT_PRSTATUS: - { - char data[268]; - va_list ap; - long pid; - int cursig; - const void *greg; - - va_start (ap, note_type); - memset (data, 0, 72); - pid = va_arg (ap, long); - bfd_put_32 (abfd, pid, data + 24); - cursig = va_arg (ap, int); - bfd_put_16 (abfd, cursig, data + 12); - greg = va_arg (ap, const void *); - memcpy (data + 72, greg, 192); - memset (data + 264, 0, 4); - va_end (ap); - return elfcore_write_note (abfd, buf, bufsiz, - "CORE", note_type, data, sizeof (data)); - } - } -} - -static flagword -ppc_elf_lookup_section_flags (char *flag_name) -{ - - if (!strcmp (flag_name, "SHF_PPC_VLE")) - return SHF_PPC_VLE; - - return 0; -} - -/* Add the VLE flag if required. */ - -bfd_boolean -ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr) -{ - if (bfd_get_mach (abfd) == bfd_mach_ppc_vle - && (shdr->sh_flags & SHF_EXECINSTR) != 0) - shdr->sh_flags |= SHF_PPC_VLE; - - return TRUE; -} - -/* Return address for Ith PLT stub in section PLT, for relocation REL - or (bfd_vma) -1 if it should not be included. */ - -static bfd_vma -ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, - const asection *plt ATTRIBUTE_UNUSED, - const arelent *rel) -{ - return rel->address; -} - -/* Handle a PowerPC specific section when reading an object file. This - is called when bfd_section_from_shdr finds a section with an unknown - type. */ - -static bfd_boolean -ppc_elf_section_from_shdr (bfd *abfd, - Elf_Internal_Shdr *hdr, - const char *name, - int shindex) -{ - asection *newsect; - flagword flags; - - if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) - return FALSE; - - newsect = hdr->bfd_section; - flags = bfd_get_section_flags (abfd, newsect); - if (hdr->sh_flags & SHF_EXCLUDE) - flags |= SEC_EXCLUDE; - - if (hdr->sh_type == SHT_ORDERED) - flags |= SEC_SORT_ENTRIES; - - bfd_set_section_flags (abfd, newsect, flags); - return TRUE; -} - -/* Set up any other section flags and such that may be necessary. */ - -static bfd_boolean -ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, - Elf_Internal_Shdr *shdr, - asection *asect) -{ - if ((asect->flags & SEC_SORT_ENTRIES) != 0) - shdr->sh_type = SHT_ORDERED; - - return TRUE; -} - -/* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we - need to bump up the number of section headers. */ - -static int -ppc_elf_additional_program_headers (bfd *abfd, - struct bfd_link_info *info ATTRIBUTE_UNUSED) -{ - asection *s; - int ret = 0; - - s = bfd_get_section_by_name (abfd, ".sbss2"); - if (s != NULL && (s->flags & SEC_ALLOC) != 0) - ++ret; - - s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); - if (s != NULL && (s->flags & SEC_ALLOC) != 0) - ++ret; - - return ret; -} - -/* Modify the segment map for VLE executables. */ - -bfd_boolean -ppc_elf_modify_segment_map (bfd *abfd, - struct bfd_link_info *info ATTRIBUTE_UNUSED) -{ - struct elf_segment_map *m, *n; - bfd_size_type amt; - unsigned int j, k; - bfd_boolean sect0_vle, sectj_vle; - - /* At this point in the link, output sections have already been sorted by - LMA and assigned to segments. All that is left to do is to ensure - there is no mixing of VLE & non-VLE sections in a text segment. - If we find that case, we split the segment. - We maintain the original output section order. */ - - for (m = elf_seg_map (abfd); m != NULL; m = m->next) - { - if (m->count == 0) - continue; - - sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0; - for (j = 1; j < m->count; ++j) - { - sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0; - - if (sectj_vle != sect0_vle) - break; - } - if (j >= m->count) - continue; - - /* sections 0..j-1 stay in this (current) segment, - the remainder are put in a new segment. - The scan resumes with the new segment. */ - - /* Fix the new segment. */ - amt = sizeof (struct elf_segment_map); - amt += (m->count - j - 1) * sizeof (asection *); - n = (struct elf_segment_map *) bfd_zalloc (abfd, amt); - if (n == NULL) - return FALSE; - - n->p_type = PT_LOAD; - n->p_flags = PF_X | PF_R; - if (sectj_vle) - n->p_flags |= PF_PPC_VLE; - n->count = m->count - j; - for (k = 0; k < n->count; ++k) - { - n->sections[k] = m->sections[j+k]; - m->sections[j+k] = NULL; - } - n->next = m->next; - m->next = n; - - /* Fix the current segment */ - m->count = j; - } - - return TRUE; -} - -/* Add extra PPC sections -- Note, for now, make .sbss2 and - .PPC.EMB.sbss0 a normal section, and not a bss section so - that the linker doesn't crater when trying to make more than - 2 sections. */ - -static const struct bfd_elf_special_section ppc_elf_special_sections[] = -{ - { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, - { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, - { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, - { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, - { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, - { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, - { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 }, - { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, - { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, - { NULL, 0, 0, 0, 0 } -}; - -/* This is what we want for new plt/got. */ -static struct bfd_elf_special_section ppc_alt_plt = - { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; - -static const struct bfd_elf_special_section * -ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) -{ - const struct bfd_elf_special_section *ssect; - - /* See if this is one of the special sections. */ - if (sec->name == NULL) - return NULL; - - ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, - sec->use_rela_p); - if (ssect != NULL) - { - if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) - ssect = &ppc_alt_plt; - return ssect; - } - - return _bfd_elf_get_sec_type_attr (abfd, sec); -} - -/* Very simple linked list structure for recording apuinfo values. */ -typedef struct apuinfo_list -{ - struct apuinfo_list *next; - unsigned long value; -} -apuinfo_list; - -static apuinfo_list *head; -static bfd_boolean apuinfo_set; - -static void -apuinfo_list_init (void) -{ - head = NULL; - apuinfo_set = FALSE; -} - -static void -apuinfo_list_add (unsigned long value) -{ - apuinfo_list *entry = head; - - while (entry != NULL) - { - if (entry->value == value) - return; - entry = entry->next; - } - - entry = bfd_malloc (sizeof (* entry)); - if (entry == NULL) - return; - - entry->value = value; - entry->next = head; - head = entry; -} - -static unsigned -apuinfo_list_length (void) -{ - apuinfo_list *entry; - unsigned long count; - - for (entry = head, count = 0; - entry; - entry = entry->next) - ++ count; - - return count; -} - -static inline unsigned long -apuinfo_list_element (unsigned long number) -{ - apuinfo_list * entry; - - for (entry = head; - entry && number --; - entry = entry->next) - ; - - return entry ? entry->value : 0; -} - -static void -apuinfo_list_finish (void) -{ - apuinfo_list *entry; - - for (entry = head; entry;) - { - apuinfo_list *next = entry->next; - free (entry); - entry = next; - } - - head = NULL; -} - -#define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" -#define APUINFO_LABEL "APUinfo" - -/* Scan the input BFDs and create a linked list of - the APUinfo values that will need to be emitted. */ - -static void -ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) -{ - bfd *ibfd; - asection *asec; - char *buffer = NULL; - bfd_size_type largest_input_size = 0; - unsigned i; - unsigned long length; - const char *error_message = NULL; - - if (link_info == NULL) - return; - - apuinfo_list_init (); - - /* Read in the input sections contents. */ - for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) - { - unsigned long datum; - - asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); - if (asec == NULL) - continue; - - error_message = _("corrupt %s section in %B"); - length = asec->size; - if (length < 20) - goto fail; - - apuinfo_set = TRUE; - if (largest_input_size < asec->size) - { - if (buffer) - free (buffer); - largest_input_size = asec->size; - buffer = bfd_malloc (largest_input_size); - if (!buffer) - return; - } - - if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 - || (bfd_bread (buffer, length, ibfd) != length)) - { - error_message = _("unable to read in %s section from %B"); - goto fail; - } - - /* Verify the contents of the header. Note - we have to - extract the values this way in order to allow for a - host whose endian-ness is different from the target. */ - datum = bfd_get_32 (ibfd, buffer); - if (datum != sizeof APUINFO_LABEL) - goto fail; - - datum = bfd_get_32 (ibfd, buffer + 8); - if (datum != 0x2) - goto fail; - - if (strcmp (buffer + 12, APUINFO_LABEL) != 0) - goto fail; - - /* Get the number of bytes used for apuinfo entries. */ - datum = bfd_get_32 (ibfd, buffer + 4); - if (datum + 20 != length) - goto fail; - - /* Scan the apuinfo section, building a list of apuinfo numbers. */ - for (i = 0; i < datum; i += 4) - apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i)); - } - - error_message = NULL; - - if (apuinfo_set) - { - /* Compute the size of the output section. */ - unsigned num_entries = apuinfo_list_length (); - - /* Set the output section size, if it exists. */ - asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); - - if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4)) - { - ibfd = abfd; - error_message = _("warning: unable to set size of %s section in %B"); - } - } - - fail: - if (buffer) - free (buffer); - - if (error_message) - (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME); -} - -/* Prevent the output section from accumulating the input sections' - contents. We have already stored this in our linked list structure. */ - -static bfd_boolean -ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *link_info ATTRIBUTE_UNUSED, - asection *asec, - bfd_byte *contents ATTRIBUTE_UNUSED) -{ - return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; -} - -/* Finally we can generate the output section. */ - -static void -ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) -{ - bfd_byte *buffer; - asection *asec; - unsigned i; - unsigned num_entries; - bfd_size_type length; - - asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); - if (asec == NULL) - return; - - if (!apuinfo_set) - return; - - length = asec->size; - if (length < 20) - return; - - buffer = bfd_malloc (length); - if (buffer == NULL) - { - (*_bfd_error_handler) - (_("failed to allocate space for new APUinfo section.")); - return; - } - - /* Create the apuinfo header. */ - num_entries = apuinfo_list_length (); - bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); - bfd_put_32 (abfd, num_entries * 4, buffer + 4); - bfd_put_32 (abfd, 0x2, buffer + 8); - strcpy ((char *) buffer + 12, APUINFO_LABEL); - - length = 20; - for (i = 0; i < num_entries; i++) - { - bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); - length += 4; - } - - if (length != asec->size) - (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); - - if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) - (*_bfd_error_handler) (_("failed to install new APUinfo section.")); - - free (buffer); - - apuinfo_list_finish (); -} - -static bfd_boolean -is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) -{ - bfd_byte buf[GLINK_ENTRY_SIZE]; - - if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE)) - return FALSE; - - return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11 - && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 - && bfd_get_32 (abfd, buf + 8) == MTCTR_11 - && bfd_get_32 (abfd, buf + 12) == BCTR); -} - -static bfd_boolean -section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) -{ - bfd_vma vma = *(bfd_vma *) ptr; - return ((section->flags & SEC_ALLOC) != 0 - && section->vma <= vma - && vma < section->vma + section->size); -} - -static long -ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, - long dynsymcount, asymbol **dynsyms, - asymbol **ret) -{ - bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); - asection *plt, *relplt, *dynamic, *glink; - bfd_vma glink_vma = 0; - bfd_vma resolv_vma = 0; - bfd_vma stub_vma; - asymbol *s; - arelent *p; - long count, i; - size_t size; - char *names; - bfd_byte buf[4]; - - *ret = NULL; - - if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) - return 0; - - if (dynsymcount <= 0) - return 0; - - relplt = bfd_get_section_by_name (abfd, ".rela.plt"); - if (relplt == NULL) - return 0; - - plt = bfd_get_section_by_name (abfd, ".plt"); - if (plt == NULL) - return 0; - - /* Call common code to handle old-style executable PLTs. */ - if (elf_section_flags (plt) & SHF_EXECINSTR) - return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, - dynsymcount, dynsyms, ret); - - /* If this object was prelinked, the prelinker stored the address - of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ - dynamic = bfd_get_section_by_name (abfd, ".dynamic"); - if (dynamic != NULL) - { - bfd_byte *dynbuf, *extdyn, *extdynend; - size_t extdynsize; - void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); - - if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) - return -1; - - extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; - swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; - - extdyn = dynbuf; - extdynend = extdyn + dynamic->size; - for (; extdyn < extdynend; extdyn += extdynsize) - { - Elf_Internal_Dyn dyn; - (*swap_dyn_in) (abfd, extdyn, &dyn); - - if (dyn.d_tag == DT_NULL) - break; - - if (dyn.d_tag == DT_PPC_GOT) - { - unsigned int g_o_t = dyn.d_un.d_val; - asection *got = bfd_get_section_by_name (abfd, ".got"); - if (got != NULL - && bfd_get_section_contents (abfd, got, buf, - g_o_t - got->vma + 4, 4)) - glink_vma = bfd_get_32 (abfd, buf); - break; - } - } - free (dynbuf); - } - - /* Otherwise we read the first plt entry. */ - if (glink_vma == 0) - { - if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) - glink_vma = bfd_get_32 (abfd, buf); - } - - if (glink_vma == 0) - return 0; - - /* The .glink section usually does not survive the final - link; search for the section (usually .text) where the - glink stubs now reside. */ - glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); - if (glink == NULL) - return 0; - - /* Determine glink PLT resolver by reading the relative branch - from the first glink stub. */ - if (bfd_get_section_contents (abfd, glink, buf, - glink_vma - glink->vma, 4)) - { - unsigned int insn = bfd_get_32 (abfd, buf); - - /* The first glink stub may either branch to the resolver ... */ - insn ^= B; - if ((insn & ~0x3fffffc) == 0) - resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; - - /* ... or fall through a bunch of NOPs. */ - else if ((insn ^ B ^ NOP) == 0) - for (i = 4; - bfd_get_section_contents (abfd, glink, buf, - glink_vma - glink->vma + i, 4); - i += 4) - if (bfd_get_32 (abfd, buf) != NOP) - { - resolv_vma = glink_vma + i; - break; - } - } - - count = relplt->size / sizeof (Elf32_External_Rela); - stub_vma = glink_vma - (bfd_vma) count * 16; - /* If the stubs are those for -shared/-pie then we might have - multiple stubs for each plt entry. If that is the case then - there is no way to associate stubs with their plt entries short - of figuring out the GOT pointer value used in the stub. */ - if (!is_nonpic_glink_stub (abfd, glink, - glink_vma - GLINK_ENTRY_SIZE - glink->vma)) - return 0; - - slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; - if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) - return -1; - - size = count * sizeof (asymbol); - p = relplt->relocation; - for (i = 0; i < count; i++, p++) - { - size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); - if (p->addend != 0) - size += sizeof ("+0x") - 1 + 8; - } - - size += sizeof (asymbol) + sizeof ("__glink"); - - if (resolv_vma) - size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); - - s = *ret = bfd_malloc (size); - if (s == NULL) - return -1; - - names = (char *) (s + count + 1 + (resolv_vma != 0)); - p = relplt->relocation; - for (i = 0; i < count; i++, p++) - { - size_t len; - - *s = **p->sym_ptr_ptr; - /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since - we are defining a symbol, ensure one of them is set. */ - if ((s->flags & BSF_LOCAL) == 0) - s->flags |= BSF_GLOBAL; - s->flags |= BSF_SYNTHETIC; - s->section = glink; - s->value = stub_vma - glink->vma; - s->name = names; - s->udata.p = NULL; - len = strlen ((*p->sym_ptr_ptr)->name); - memcpy (names, (*p->sym_ptr_ptr)->name, len); - names += len; - if (p->addend != 0) - { - memcpy (names, "+0x", sizeof ("+0x") - 1); - names += sizeof ("+0x") - 1; - bfd_sprintf_vma (abfd, names, p->addend); - names += strlen (names); - } - memcpy (names, "@plt", sizeof ("@plt")); - names += sizeof ("@plt"); - ++s; - stub_vma += 16; - } - - /* Add a symbol at the start of the glink branch table. */ - memset (s, 0, sizeof *s); - s->the_bfd = abfd; - s->flags = BSF_GLOBAL | BSF_SYNTHETIC; - s->section = glink; - s->value = glink_vma - glink->vma; - s->name = names; - memcpy (names, "__glink", sizeof ("__glink")); - names += sizeof ("__glink"); - s++; - count++; - - if (resolv_vma) - { - /* Add a symbol for the glink PLT resolver. */ - memset (s, 0, sizeof *s); - s->the_bfd = abfd; - s->flags = BSF_GLOBAL | BSF_SYNTHETIC; - s->section = glink; - s->value = resolv_vma - glink->vma; - s->name = names; - memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); - names += sizeof ("__glink_PLTresolve"); - s++; - count++; - } - - return count; -} - -/* The following functions are specific to the ELF linker, while - functions above are used generally. They appear in this file more - or less in the order in which they are called. eg. - ppc_elf_check_relocs is called early in the link process, - ppc_elf_finish_dynamic_sections is one of the last functions - called. */ - -/* Track PLT entries needed for a given symbol. We might need more - than one glink entry per symbol when generating a pic binary. */ -struct plt_entry -{ - struct plt_entry *next; - - /* -fPIC uses multiple GOT sections, one per file, called ".got2". - This field stores the offset into .got2 used to initialise the - GOT pointer reg. It will always be at least 32768. (Current - gcc always uses an offset of 32768, but ld -r will pack .got2 - sections together resulting in larger offsets). */ - bfd_vma addend; - - /* The .got2 section. */ - asection *sec; - - /* PLT refcount or offset. */ - union - { - bfd_signed_vma refcount; - bfd_vma offset; - } plt; - - /* .glink stub offset. */ - bfd_vma glink_offset; -}; - -/* Of those relocs that might be copied as dynamic relocs, this function - selects those that must be copied when linking a shared library, - even when the symbol is local. */ - -static int -must_be_dyn_reloc (struct bfd_link_info *info, - enum elf_ppc_reloc_type r_type) -{ - switch (r_type) - { - default: - return 1; - - case R_PPC_REL24: - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - case R_PPC_REL32: - return 0; - - case R_PPC_TPREL32: - case R_PPC_TPREL16: - case R_PPC_TPREL16_LO: - case R_PPC_TPREL16_HI: - case R_PPC_TPREL16_HA: - return !info->executable; - } -} - -/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid - copying dynamic variables from a shared lib into an app's dynbss - section, and instead use a dynamic relocation to point into the - shared lib. */ -#define ELIMINATE_COPY_RELOCS 1 - -/* Used to track dynamic relocations for local symbols. */ -struct ppc_dyn_relocs -{ - struct ppc_dyn_relocs *next; - - /* The input section of the reloc. */ - asection *sec; - - /* Total number of relocs copied for the input section. */ - unsigned int count : 31; - - /* Whether this entry is for STT_GNU_IFUNC symbols. */ - unsigned int ifunc : 1; -}; - -/* PPC ELF linker hash entry. */ - -struct ppc_elf_link_hash_entry -{ - struct elf_link_hash_entry elf; - - /* If this symbol is used in the linker created sections, the processor - specific backend uses this field to map the field into the offset - from the beginning of the section. */ - elf_linker_section_pointers_t *linker_section_pointer; - - /* Track dynamic relocs copied for this symbol. */ - struct elf_dyn_relocs *dyn_relocs; - - /* Contexts in which symbol is used in the GOT (or TOC). - TLS_GD .. TLS_TLS bits are or'd into the mask as the - corresponding relocs are encountered during check_relocs. - tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to - indicate the corresponding GOT entry type is not needed. */ -#define TLS_GD 1 /* GD reloc. */ -#define TLS_LD 2 /* LD reloc. */ -#define TLS_TPREL 4 /* TPREL reloc, => IE. */ -#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ -#define TLS_TLS 16 /* Any TLS reloc. */ -#define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ -#define PLT_IFUNC 64 /* STT_GNU_IFUNC. */ - char tls_mask; - - /* Nonzero if we have seen a small data relocation referring to this - symbol. */ - unsigned char has_sda_refs; -}; - -#define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) - -/* PPC ELF linker hash table. */ - -struct ppc_elf_link_hash_table -{ - struct elf_link_hash_table elf; - - /* Short-cuts to get to dynamic linker sections. */ - asection *got; - asection *relgot; - asection *glink; - asection *plt; - asection *relplt; - asection *iplt; - asection *reliplt; - asection *dynbss; - asection *relbss; - asection *dynsbss; - asection *relsbss; - elf_linker_section_t sdata[2]; - asection *sbss; - asection *glink_eh_frame; - - /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ - asection *srelplt2; - - /* The .got.plt section (VxWorks only)*/ - asection *sgotplt; - - /* Shortcut to __tls_get_addr. */ - struct elf_link_hash_entry *tls_get_addr; - - /* The bfd that forced an old-style PLT. */ - bfd *old_bfd; - - /* TLS local dynamic got entry handling. */ - union { - bfd_signed_vma refcount; - bfd_vma offset; - } tlsld_got; - - /* Offset of branch table to PltResolve function in glink. */ - bfd_vma glink_pltresolve; - - /* Size of reserved GOT entries. */ - unsigned int got_header_size; - /* Non-zero if allocating the header left a gap. */ - unsigned int got_gap; - - /* The type of PLT we have chosen to use. */ - enum ppc_elf_plt_type plt_type; - - /* Set if we should emit symbols for stubs. */ - unsigned int emit_stub_syms:1; - - /* Set if __tls_get_addr optimization should not be done. */ - unsigned int no_tls_get_addr_opt:1; - - /* True if the target system is VxWorks. */ - unsigned int is_vxworks:1; - - /* The size of PLT entries. */ - int plt_entry_size; - /* The distance between adjacent PLT slots. */ - int plt_slot_size; - /* The size of the first PLT entry. */ - int plt_initial_entry_size; - - /* Small local sym cache. */ - struct sym_cache sym_cache; -}; - -/* Rename some of the generic section flags to better document how they - are used for ppc32. The flags are only valid for ppc32 elf objects. */ - -/* Nonzero if this section has TLS related relocations. */ -#define has_tls_reloc sec_flg0 - -/* Nonzero if this section has a call to __tls_get_addr. */ -#define has_tls_get_addr_call sec_flg1 - -/* Get the PPC ELF linker hash table from a link_info structure. */ - -#define ppc_elf_hash_table(p) \ - (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ - == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL) - -/* Create an entry in a PPC ELF linker hash table. */ - -static struct bfd_hash_entry * -ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, - struct bfd_hash_table *table, - const char *string) -{ - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (entry == NULL) - { - entry = bfd_hash_allocate (table, - sizeof (struct ppc_elf_link_hash_entry)); - if (entry == NULL) - return entry; - } - - /* Call the allocation method of the superclass. */ - entry = _bfd_elf_link_hash_newfunc (entry, table, string); - if (entry != NULL) - { - ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; - ppc_elf_hash_entry (entry)->dyn_relocs = NULL; - ppc_elf_hash_entry (entry)->tls_mask = 0; - ppc_elf_hash_entry (entry)->has_sda_refs = 0; - } - - return entry; -} - -/* Create a PPC ELF linker hash table. */ - -static struct bfd_link_hash_table * -ppc_elf_link_hash_table_create (bfd *abfd) -{ - struct ppc_elf_link_hash_table *ret; - - ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); - if (ret == NULL) - return NULL; - - if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, - ppc_elf_link_hash_newfunc, - sizeof (struct ppc_elf_link_hash_entry), - PPC32_ELF_DATA)) - { - free (ret); - return NULL; - } - - ret->elf.init_plt_refcount.refcount = 0; - ret->elf.init_plt_refcount.glist = NULL; - ret->elf.init_plt_offset.offset = 0; - ret->elf.init_plt_offset.glist = NULL; - - ret->sdata[0].name = ".sdata"; - ret->sdata[0].sym_name = "_SDA_BASE_"; - ret->sdata[0].bss_name = ".sbss"; - - ret->sdata[1].name = ".sdata2"; - ret->sdata[1].sym_name = "_SDA2_BASE_"; - ret->sdata[1].bss_name = ".sbss2"; - - ret->plt_entry_size = 12; - ret->plt_slot_size = 8; - ret->plt_initial_entry_size = 72; - - return &ret->elf.root; -} - -/* Create .got and the related sections. */ - -static bfd_boolean -ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) -{ - struct ppc_elf_link_hash_table *htab; - asection *s; - flagword flags; - - if (!_bfd_elf_create_got_section (abfd, info)) - return FALSE; - - htab = ppc_elf_hash_table (info); - htab->got = s = bfd_get_linker_section (abfd, ".got"); - if (s == NULL) - abort (); - - if (htab->is_vxworks) - { - htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt"); - if (!htab->sgotplt) - abort (); - } - else - { - /* The powerpc .got has a blrl instruction in it. Mark it - executable. */ - flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - if (!bfd_set_section_flags (abfd, s, flags)) - return FALSE; - } - - htab->relgot = bfd_get_linker_section (abfd, ".rela.got"); - if (!htab->relgot) - abort (); - - return TRUE; -} - -static bfd_boolean -ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info) -{ - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - asection *s; - flagword flags; - - flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags); - htab->glink = s; - if (s == NULL - || !bfd_set_section_alignment (abfd, s, 4)) - return FALSE; - - if (!info->no_ld_generated_unwind_info) - { - flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags); - htab->glink_eh_frame = s; - if (s == NULL - || !bfd_set_section_alignment (abfd, s, 2)) - return FALSE; - } - - flags = SEC_ALLOC | SEC_LINKER_CREATED; - s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags); - htab->iplt = s; - if (s == NULL - || !bfd_set_section_alignment (abfd, s, 4)) - return FALSE; - - flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags); - htab->reliplt = s; - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, 2)) - return FALSE; - return TRUE; -} - -/* We have to create .dynsbss and .rela.sbss here so that they get mapped - to output sections (just like _bfd_elf_create_dynamic_sections has - to create .dynbss and .rela.bss). */ - -static bfd_boolean -ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) -{ - struct ppc_elf_link_hash_table *htab; - asection *s; - flagword flags; - - htab = ppc_elf_hash_table (info); - - if (htab->got == NULL - && !ppc_elf_create_got (abfd, info)) - return FALSE; - - if (!_bfd_elf_create_dynamic_sections (abfd, info)) - return FALSE; - - if (htab->glink == NULL - && !ppc_elf_create_glink (abfd, info)) - return FALSE; - - htab->dynbss = bfd_get_linker_section (abfd, ".dynbss"); - s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", - SEC_ALLOC | SEC_LINKER_CREATED); - htab->dynsbss = s; - if (s == NULL) - return FALSE; - - if (! info->shared) - { - htab->relbss = bfd_get_linker_section (abfd, ".rela.bss"); - flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags); - htab->relsbss = s; - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, 2)) - return FALSE; - } - - if (htab->is_vxworks - && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) - return FALSE; - - htab->relplt = bfd_get_linker_section (abfd, ".rela.plt"); - htab->plt = s = bfd_get_linker_section (abfd, ".plt"); - if (s == NULL) - abort (); - - flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; - if (htab->plt_type == PLT_VXWORKS) - /* The VxWorks PLT is a loaded section with contents. */ - flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; - return bfd_set_section_flags (abfd, s, flags); -} - -/* Copy the extra info we tack onto an elf_link_hash_entry. */ - -static void -ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *dir, - struct elf_link_hash_entry *ind) -{ - struct ppc_elf_link_hash_entry *edir, *eind; - - edir = (struct ppc_elf_link_hash_entry *) dir; - eind = (struct ppc_elf_link_hash_entry *) ind; - - edir->tls_mask |= eind->tls_mask; - edir->has_sda_refs |= eind->has_sda_refs; - - /* If called to transfer flags for a weakdef during processing - of elf_adjust_dynamic_symbol, don't copy non_got_ref. - We clear it ourselves for ELIMINATE_COPY_RELOCS. */ - if (!(ELIMINATE_COPY_RELOCS - && eind->elf.root.type != bfd_link_hash_indirect - && edir->elf.dynamic_adjusted)) - edir->elf.non_got_ref |= eind->elf.non_got_ref; - - edir->elf.ref_dynamic |= eind->elf.ref_dynamic; - edir->elf.ref_regular |= eind->elf.ref_regular; - edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; - edir->elf.needs_plt |= eind->elf.needs_plt; - edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; - - if (eind->dyn_relocs != NULL) - { - if (edir->dyn_relocs != NULL) - { - struct elf_dyn_relocs **pp; - struct elf_dyn_relocs *p; - - /* Add reloc counts against the indirect sym to the direct sym - list. Merge any entries against the same section. */ - for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) - { - struct elf_dyn_relocs *q; - - for (q = edir->dyn_relocs; q != NULL; q = q->next) - if (q->sec == p->sec) - { - q->pc_count += p->pc_count; - q->count += p->count; - *pp = p->next; - break; - } - if (q == NULL) - pp = &p->next; - } - *pp = edir->dyn_relocs; - } - - edir->dyn_relocs = eind->dyn_relocs; - eind->dyn_relocs = NULL; - } - - /* If we were called to copy over info for a weak sym, that's all. - You might think dyn_relocs need not be copied over; After all, - both syms will be dynamic or both non-dynamic so we're just - moving reloc accounting around. However, ELIMINATE_COPY_RELOCS - code in ppc_elf_adjust_dynamic_symbol needs to check for - dyn_relocs in read-only sections, and it does so on what is the - DIR sym here. */ - if (eind->elf.root.type != bfd_link_hash_indirect) - return; - - /* Copy over the GOT refcount entries that we may have already seen to - the symbol which just became indirect. */ - edir->elf.got.refcount += eind->elf.got.refcount; - eind->elf.got.refcount = 0; - - /* And plt entries. */ - if (eind->elf.plt.plist != NULL) - { - if (edir->elf.plt.plist != NULL) - { - struct plt_entry **entp; - struct plt_entry *ent; - - for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) - { - struct plt_entry *dent; - - for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) - if (dent->sec == ent->sec && dent->addend == ent->addend) - { - dent->plt.refcount += ent->plt.refcount; - *entp = ent->next; - break; - } - if (dent == NULL) - entp = &ent->next; - } - *entp = edir->elf.plt.plist; - } - - edir->elf.plt.plist = eind->elf.plt.plist; - eind->elf.plt.plist = NULL; - } - - if (eind->elf.dynindx != -1) - { - if (edir->elf.dynindx != -1) - _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, - edir->elf.dynstr_index); - edir->elf.dynindx = eind->elf.dynindx; - edir->elf.dynstr_index = eind->elf.dynstr_index; - eind->elf.dynindx = -1; - eind->elf.dynstr_index = 0; - } -} - -/* Hook called by the linker routine which adds symbols from an object - file. We use it to put .comm items in .sbss, and not .bss. */ - -static bfd_boolean -ppc_elf_add_symbol_hook (bfd *abfd, - struct bfd_link_info *info, - Elf_Internal_Sym *sym, - const char **namep ATTRIBUTE_UNUSED, - flagword *flagsp ATTRIBUTE_UNUSED, - asection **secp, - bfd_vma *valp) -{ - if (sym->st_shndx == SHN_COMMON - && !info->relocatable - && is_ppc_elf (info->output_bfd) - && sym->st_size <= elf_gp_size (abfd)) - { - /* Common symbols less than or equal to -G nn bytes are automatically - put into .sbss. */ - struct ppc_elf_link_hash_table *htab; - - htab = ppc_elf_hash_table (info); - if (htab->sbss == NULL) - { - flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; - - if (!htab->elf.dynobj) - htab->elf.dynobj = abfd; - - htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, - ".sbss", - flags); - if (htab->sbss == NULL) - return FALSE; - } - - *secp = htab->sbss; - *valp = sym->st_size; - } - - if ((abfd->flags & DYNAMIC) == 0 - && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC - || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)) - elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; - - return TRUE; -} - -static bfd_boolean -create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect) -{ - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - - lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name, - TRUE, FALSE, TRUE); - if (lsect->sym == NULL) - return FALSE; - if (lsect->sym->root.type == bfd_link_hash_new) - lsect->sym->non_elf = 0; - lsect->sym->ref_regular = 1; - _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE); - return TRUE; -} - -/* Create a special linker section. */ - -static bfd_boolean -ppc_elf_create_linker_section (bfd *abfd, - struct bfd_link_info *info, - flagword flags, - elf_linker_section_t *lsect) -{ - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - asection *s; - - flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED); - - /* Record the first bfd that needs the special sections. */ - if (!htab->elf.dynobj) - htab->elf.dynobj = abfd; - - s = bfd_make_section_anyway_with_flags (htab->elf.dynobj, - lsect->name, - flags); - if (s == NULL - || !bfd_set_section_alignment (htab->elf.dynobj, s, 2)) - return FALSE; - lsect->section = s; - - return create_sdata_sym (info, lsect); -} - -/* Find a linker generated pointer with a given addend and type. */ - -static elf_linker_section_pointers_t * -elf_find_pointer_linker_section - (elf_linker_section_pointers_t *linker_pointers, - bfd_vma addend, - elf_linker_section_t *lsect) -{ - for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) - if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) - return linker_pointers; - - return NULL; -} - -/* Allocate a pointer to live in a linker created section. */ - -static bfd_boolean -elf_create_pointer_linker_section (bfd *abfd, - elf_linker_section_t *lsect, - struct elf_link_hash_entry *h, - const Elf_Internal_Rela *rel) -{ - elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; - elf_linker_section_pointers_t *linker_section_ptr; - unsigned long r_symndx = ELF32_R_SYM (rel->r_info); - bfd_size_type amt; - - BFD_ASSERT (lsect != NULL); - - /* Is this a global symbol? */ - if (h != NULL) - { - struct ppc_elf_link_hash_entry *eh; - - /* Has this symbol already been allocated? If so, our work is done. */ - eh = (struct ppc_elf_link_hash_entry *) h; - if (elf_find_pointer_linker_section (eh->linker_section_pointer, - rel->r_addend, - lsect)) - return TRUE; - - ptr_linker_section_ptr = &eh->linker_section_pointer; - } - else - { - BFD_ASSERT (is_ppc_elf (abfd)); - - /* Allocation of a pointer to a local symbol. */ - elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); - - /* Allocate a table to hold the local symbols if first time. */ - if (!ptr) - { - unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; - - amt = num_symbols; - amt *= sizeof (elf_linker_section_pointers_t *); - ptr = bfd_zalloc (abfd, amt); - - if (!ptr) - return FALSE; - - elf_local_ptr_offsets (abfd) = ptr; - } - - /* Has this symbol already been allocated? If so, our work is done. */ - if (elf_find_pointer_linker_section (ptr[r_symndx], - rel->r_addend, - lsect)) - return TRUE; - - ptr_linker_section_ptr = &ptr[r_symndx]; - } - - /* Allocate space for a pointer in the linker section, and allocate - a new pointer record from internal memory. */ - BFD_ASSERT (ptr_linker_section_ptr != NULL); - amt = sizeof (elf_linker_section_pointers_t); - linker_section_ptr = bfd_alloc (abfd, amt); - - if (!linker_section_ptr) - return FALSE; - - linker_section_ptr->next = *ptr_linker_section_ptr; - linker_section_ptr->addend = rel->r_addend; - linker_section_ptr->lsect = lsect; - *ptr_linker_section_ptr = linker_section_ptr; - - linker_section_ptr->offset = lsect->section->size; - lsect->section->size += 4; - -#ifdef DEBUG - fprintf (stderr, - "Create pointer in linker section %s, offset = %ld, section size = %ld\n", - lsect->name, (long) linker_section_ptr->offset, - (long) lsect->section->size); -#endif - - return TRUE; -} - -static struct plt_entry ** -update_local_sym_info (bfd *abfd, - Elf_Internal_Shdr *symtab_hdr, - unsigned long r_symndx, - int tls_type) -{ - bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); - struct plt_entry **local_plt; - char *local_got_tls_masks; - - if (local_got_refcounts == NULL) - { - bfd_size_type size = symtab_hdr->sh_info; - - size *= (sizeof (*local_got_refcounts) - + sizeof (*local_plt) - + sizeof (*local_got_tls_masks)); - local_got_refcounts = bfd_zalloc (abfd, size); - if (local_got_refcounts == NULL) - return NULL; - elf_local_got_refcounts (abfd) = local_got_refcounts; - } - - local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info); - local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info); - local_got_tls_masks[r_symndx] |= tls_type; - if (tls_type != PLT_IFUNC) - local_got_refcounts[r_symndx] += 1; - return local_plt + r_symndx; -} - -static bfd_boolean -update_plt_info (bfd *abfd, struct plt_entry **plist, - asection *sec, bfd_vma addend) -{ - struct plt_entry *ent; - - if (addend < 32768) - sec = NULL; - for (ent = *plist; ent != NULL; ent = ent->next) - if (ent->sec == sec && ent->addend == addend) - break; - if (ent == NULL) - { - bfd_size_type amt = sizeof (*ent); - ent = bfd_alloc (abfd, amt); - if (ent == NULL) - return FALSE; - ent->next = *plist; - ent->sec = sec; - ent->addend = addend; - ent->plt.refcount = 0; - *plist = ent; - } - ent->plt.refcount += 1; - return TRUE; -} - -static struct plt_entry * -find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend) -{ - struct plt_entry *ent; - - if (addend < 32768) - sec = NULL; - for (ent = *plist; ent != NULL; ent = ent->next) - if (ent->sec == sec && ent->addend == addend) - break; - return ent; -} - -static bfd_boolean -is_branch_reloc (enum elf_ppc_reloc_type r_type) -{ - return (r_type == R_PPC_PLTREL24 - || r_type == R_PPC_LOCAL24PC - || r_type == R_PPC_REL24 - || r_type == R_PPC_REL14 - || r_type == R_PPC_REL14_BRTAKEN - || r_type == R_PPC_REL14_BRNTAKEN - || r_type == R_PPC_ADDR24 - || r_type == R_PPC_ADDR14 - || r_type == R_PPC_ADDR14_BRTAKEN - || r_type == R_PPC_ADDR14_BRNTAKEN); -} - -static void -bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) -{ - (*_bfd_error_handler) - (_("%B: relocation %s cannot be used when making a shared object"), - abfd, - ppc_elf_howto_table[r_type]->name); - bfd_set_error (bfd_error_bad_value); -} - -/* Look through the relocs for a section during the first phase, and - allocate space in the global offset table or procedure linkage - table. */ - -static bfd_boolean -ppc_elf_check_relocs (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - struct ppc_elf_link_hash_table *htab; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - asection *got2, *sreloc; - struct elf_link_hash_entry *tga; - - if (info->relocatable) - return TRUE; - - /* Don't do anything special with non-loaded, non-alloced sections. - In particular, any relocs in such sections should not affect GOT - and PLT reference counting (ie. we don't allow them to create GOT - or PLT entries), there's no possibility or desire to optimize TLS - relocs, and there's not much point in propagating relocs to shared - libs that the dynamic linker won't relocate. */ - if ((sec->flags & SEC_ALLOC) == 0) - return TRUE; - -#ifdef DEBUG - _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", - sec, abfd); -#endif - - BFD_ASSERT (is_ppc_elf (abfd)); - - /* Initialize howto table if not already done. */ - if (!ppc_elf_howto_table[R_PPC_ADDR32]) - ppc_elf_howto_init (); - - htab = ppc_elf_hash_table (info); - if (htab->glink == NULL) - { - if (htab->elf.dynobj == NULL) - htab->elf.dynobj = abfd; - if (!ppc_elf_create_glink (htab->elf.dynobj, info)) - return FALSE; - } - tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", - FALSE, FALSE, TRUE); - symtab_hdr = &elf_symtab_hdr (abfd); - sym_hashes = elf_sym_hashes (abfd); - got2 = bfd_get_section_by_name (abfd, ".got2"); - sreloc = NULL; - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - unsigned long r_symndx; - enum elf_ppc_reloc_type r_type; - struct elf_link_hash_entry *h; - int tls_type; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - /* PR15323, ref flags aren't set for references in the same - object. */ - h->root.non_ir_ref = 1; - } - - /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. - This shows up in particular in an R_PPC_ADDR32 in the eabi - startup code. */ - if (h != NULL - && htab->got == NULL - && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) - { - if (htab->elf.dynobj == NULL) - htab->elf.dynobj = abfd; - if (!ppc_elf_create_got (htab->elf.dynobj, info)) - return FALSE; - BFD_ASSERT (h == htab->elf.hgot); - } - - tls_type = 0; - r_type = ELF32_R_TYPE (rel->r_info); - if (h == NULL && !htab->is_vxworks) - { - Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, - abfd, r_symndx); - if (isym == NULL) - return FALSE; - - if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) - { - struct plt_entry **ifunc; - - /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */ - ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, - PLT_IFUNC); - if (ifunc == NULL) - return FALSE; - - /* STT_GNU_IFUNC symbols must have a PLT entry; - In a non-pie executable even when there are - no plt calls. */ - if (!info->shared - || is_branch_reloc (r_type)) - { - bfd_vma addend = 0; - if (r_type == R_PPC_PLTREL24) - { - ppc_elf_tdata (abfd)->makes_plt_call = 1; - if (info->shared) - addend = rel->r_addend; - } - if (!update_plt_info (abfd, ifunc, got2, addend)) - return FALSE; - } - } - } - - if (!htab->is_vxworks - && is_branch_reloc (r_type) - && h != NULL - && h == tga) - { - if (rel != relocs - && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD - || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) - /* We have a new-style __tls_get_addr call with a marker - reloc. */ - ; - else - /* Mark this section as having an old-style call. */ - sec->has_tls_get_addr_call = 1; - } - - switch (r_type) - { - case R_PPC_TLSGD: - case R_PPC_TLSLD: - /* These special tls relocs tie a call to __tls_get_addr with - its parameter symbol. */ - break; - - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - case R_PPC_GOT_TLSLD16_HI: - case R_PPC_GOT_TLSLD16_HA: - tls_type = TLS_TLS | TLS_LD; - goto dogottls; - - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - case R_PPC_GOT_TLSGD16_HI: - case R_PPC_GOT_TLSGD16_HA: - tls_type = TLS_TLS | TLS_GD; - goto dogottls; - - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - case R_PPC_GOT_TPREL16_HI: - case R_PPC_GOT_TPREL16_HA: - if (!info->executable) - info->flags |= DF_STATIC_TLS; - tls_type = TLS_TLS | TLS_TPREL; - goto dogottls; - - case R_PPC_GOT_DTPREL16: - case R_PPC_GOT_DTPREL16_LO: - case R_PPC_GOT_DTPREL16_HI: - case R_PPC_GOT_DTPREL16_HA: - tls_type = TLS_TLS | TLS_DTPREL; - dogottls: - sec->has_tls_reloc = 1; - /* Fall thru */ - - /* GOT16 relocations */ - case R_PPC_GOT16: - case R_PPC_GOT16_LO: - case R_PPC_GOT16_HI: - case R_PPC_GOT16_HA: - /* This symbol requires a global offset table entry. */ - if (htab->got == NULL) - { - if (htab->elf.dynobj == NULL) - htab->elf.dynobj = abfd; - if (!ppc_elf_create_got (htab->elf.dynobj, info)) - return FALSE; - } - if (h != NULL) - { - h->got.refcount += 1; - ppc_elf_hash_entry (h)->tls_mask |= tls_type; - } - else - /* This is a global offset table entry for a local symbol. */ - if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) - return FALSE; - - /* We may also need a plt entry if the symbol turns out to be - an ifunc. */ - if (h != NULL && !info->shared) - { - if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) - return FALSE; - } - break; - - /* Indirect .sdata relocation. */ - case R_PPC_EMB_SDAI16: - if (info->shared) - { - bad_shared_reloc (abfd, r_type); - return FALSE; - } - if (htab->sdata[0].section == NULL - && !ppc_elf_create_linker_section (abfd, info, 0, - &htab->sdata[0])) - return FALSE; - if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0], - h, rel)) - return FALSE; - if (h != NULL) - { - ppc_elf_hash_entry (h)->has_sda_refs = TRUE; - h->non_got_ref = TRUE; - } - break; - - /* Indirect .sdata2 relocation. */ - case R_PPC_EMB_SDA2I16: - if (info->shared) - { - bad_shared_reloc (abfd, r_type); - return FALSE; - } - if (htab->sdata[1].section == NULL - && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY, - &htab->sdata[1])) - return FALSE; - if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1], - h, rel)) - return FALSE; - if (h != NULL) - { - ppc_elf_hash_entry (h)->has_sda_refs = TRUE; - h->non_got_ref = TRUE; - } - break; - - case R_PPC_VLE_SDAREL_LO16A: - case R_PPC_VLE_SDAREL_LO16D: - case R_PPC_VLE_SDAREL_HI16A: - case R_PPC_VLE_SDAREL_HI16D: - case R_PPC_VLE_SDAREL_HA16A: - case R_PPC_VLE_SDAREL_HA16D: - case R_PPC_SDAREL16: - if (htab->sdata[0].sym == NULL - && !create_sdata_sym (info, &htab->sdata[0])) - return FALSE; - - if (htab->sdata[1].sym == NULL - && !create_sdata_sym (info, &htab->sdata[1])) - return FALSE; - - if (h != NULL) - { - ppc_elf_hash_entry (h)->has_sda_refs = TRUE; - h->non_got_ref = TRUE; - } - break; - - case R_PPC_VLE_REL8: - case R_PPC_VLE_REL15: - case R_PPC_VLE_REL24: - case R_PPC_VLE_LO16A: - case R_PPC_VLE_LO16D: - case R_PPC_VLE_HI16A: - case R_PPC_VLE_HI16D: - case R_PPC_VLE_HA16A: - case R_PPC_VLE_HA16D: - break; - - case R_PPC_EMB_SDA2REL: - if (info->shared) - { - bad_shared_reloc (abfd, r_type); - return FALSE; - } - if (htab->sdata[1].sym == NULL - && !create_sdata_sym (info, &htab->sdata[1])) - return FALSE; - if (h != NULL) - { - ppc_elf_hash_entry (h)->has_sda_refs = TRUE; - h->non_got_ref = TRUE; - } - break; - - case R_PPC_VLE_SDA21_LO: - case R_PPC_VLE_SDA21: - case R_PPC_EMB_SDA21: - case R_PPC_EMB_RELSDA: - if (info->shared) - { - bad_shared_reloc (abfd, r_type); - return FALSE; - } - if (htab->sdata[0].sym == NULL - && !create_sdata_sym (info, &htab->sdata[0])) - return FALSE; - if (htab->sdata[1].sym == NULL - && !create_sdata_sym (info, &htab->sdata[1])) - return FALSE; - if (h != NULL) - { - ppc_elf_hash_entry (h)->has_sda_refs = TRUE; - h->non_got_ref = TRUE; - } - break; - - case R_PPC_EMB_NADDR32: - case R_PPC_EMB_NADDR16: - case R_PPC_EMB_NADDR16_LO: - case R_PPC_EMB_NADDR16_HI: - case R_PPC_EMB_NADDR16_HA: - if (info->shared) - { - bad_shared_reloc (abfd, r_type); - return FALSE; - } - if (h != NULL) - h->non_got_ref = TRUE; - break; - - case R_PPC_PLTREL24: - if (h == NULL) - break; - /* Fall through */ - case R_PPC_PLT32: - case R_PPC_PLTREL32: - case R_PPC_PLT16_LO: - case R_PPC_PLT16_HI: - case R_PPC_PLT16_HA: -#ifdef DEBUG - fprintf (stderr, "Reloc requires a PLT entry\n"); -#endif - /* This symbol requires a procedure linkage table entry. We - actually build the entry in finish_dynamic_symbol, - because this might be a case of linking PIC code without - linking in any dynamic objects, in which case we don't - need to generate a procedure linkage table after all. */ - - if (h == NULL) - { - /* It does not make sense to have a procedure linkage - table entry for a local symbol. */ - info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"), - abfd, sec, rel->r_offset, - ppc_elf_howto_table[r_type]->name); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - else - { - bfd_vma addend = 0; - - if (r_type == R_PPC_PLTREL24) - { - ppc_elf_tdata (abfd)->makes_plt_call = 1; - if (info->shared) - addend = rel->r_addend; - } - h->needs_plt = 1; - if (!update_plt_info (abfd, &h->plt.plist, got2, addend)) - return FALSE; - } - break; - - /* The following relocations don't need to propagate the - relocation if linking a shared object since they are - section relative. */ - case R_PPC_SECTOFF: - case R_PPC_SECTOFF_LO: - case R_PPC_SECTOFF_HI: - case R_PPC_SECTOFF_HA: - case R_PPC_DTPREL16: - case R_PPC_DTPREL16_LO: - case R_PPC_DTPREL16_HI: - case R_PPC_DTPREL16_HA: - case R_PPC_TOC16: - break; - - case R_PPC_REL16: - case R_PPC_REL16_LO: - case R_PPC_REL16_HI: - case R_PPC_REL16_HA: - ppc_elf_tdata (abfd)->has_rel16 = 1; - break; - - /* These are just markers. */ - case R_PPC_TLS: - case R_PPC_EMB_MRKREF: - case R_PPC_NONE: - case R_PPC_max: - case R_PPC_RELAX: - case R_PPC_RELAX_PLT: - case R_PPC_RELAX_PLTREL24: - break; - - /* These should only appear in dynamic objects. */ - case R_PPC_COPY: - case R_PPC_GLOB_DAT: - case R_PPC_JMP_SLOT: - case R_PPC_RELATIVE: - case R_PPC_IRELATIVE: - break; - - /* These aren't handled yet. We'll report an error later. */ - case R_PPC_ADDR30: - case R_PPC_EMB_RELSEC16: - case R_PPC_EMB_RELST_LO: - case R_PPC_EMB_RELST_HI: - case R_PPC_EMB_RELST_HA: - case R_PPC_EMB_BIT_FLD: - break; - - /* This refers only to functions defined in the shared library. */ - case R_PPC_LOCAL24PC: - if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) - { - htab->plt_type = PLT_OLD; - htab->old_bfd = abfd; - } - break; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_PPC_GNU_VTINHERIT: - if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return FALSE; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_PPC_GNU_VTENTRY: - BFD_ASSERT (h != NULL); - if (h != NULL - && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) - return FALSE; - break; - - /* We shouldn't really be seeing these. */ - case R_PPC_TPREL32: - case R_PPC_TPREL16: - case R_PPC_TPREL16_LO: - case R_PPC_TPREL16_HI: - case R_PPC_TPREL16_HA: - if (!info->executable) - info->flags |= DF_STATIC_TLS; - goto dodyn; - - /* Nor these. */ - case R_PPC_DTPMOD32: - case R_PPC_DTPREL32: - goto dodyn; - - case R_PPC_REL32: - if (h == NULL - && got2 != NULL - && (sec->flags & SEC_CODE) != 0 - && info->shared - && htab->plt_type == PLT_UNSET) - { - /* Old -fPIC gcc code has .long LCTOC1-LCFx just before - the start of a function, which assembles to a REL32 - reference to .got2. If we detect one of these, then - force the old PLT layout because the linker cannot - reliably deduce the GOT pointer value needed for - PLT call stubs. */ - asection *s; - Elf_Internal_Sym *isym; - - isym = bfd_sym_from_r_symndx (&htab->sym_cache, - abfd, r_symndx); - if (isym == NULL) - return FALSE; - - s = bfd_section_from_elf_index (abfd, isym->st_shndx); - if (s == got2) - { - htab->plt_type = PLT_OLD; - htab->old_bfd = abfd; - } - } - if (h == NULL || h == htab->elf.hgot) - break; - /* fall through */ - - case R_PPC_ADDR32: - case R_PPC_ADDR16: - case R_PPC_ADDR16_LO: - case R_PPC_ADDR16_HI: - case R_PPC_ADDR16_HA: - case R_PPC_UADDR32: - case R_PPC_UADDR16: - if (h != NULL && !info->shared) - { - /* We may need a plt entry if the symbol turns out to be - a function defined in a dynamic object. */ - if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) - return FALSE; - - /* We may need a copy reloc too. */ - h->non_got_ref = 1; - h->pointer_equality_needed = 1; - } - goto dodyn; - - case R_PPC_REL24: - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - if (h == NULL) - break; - if (h == htab->elf.hgot) - { - if (htab->plt_type == PLT_UNSET) - { - htab->plt_type = PLT_OLD; - htab->old_bfd = abfd; - } - break; - } - /* fall through */ - - case R_PPC_ADDR24: - case R_PPC_ADDR14: - case R_PPC_ADDR14_BRTAKEN: - case R_PPC_ADDR14_BRNTAKEN: - if (h != NULL && !info->shared) - { - /* We may need a plt entry if the symbol turns out to be - a function defined in a dynamic object. */ - h->needs_plt = 1; - if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) - return FALSE; - break; - } - - dodyn: - /* If we are creating a shared library, and this is a reloc - against a global symbol, or a non PC relative reloc - against a local symbol, then we need to copy the reloc - into the shared library. However, if we are linking with - -Bsymbolic, we do not need to copy a reloc against a - global symbol which is defined in an object we are - including in the link (i.e., DEF_REGULAR is set). At - this point we have not seen all the input files, so it is - possible that DEF_REGULAR is not set now but will be set - later (it is never cleared). In case of a weak definition, - DEF_REGULAR may be cleared later by a strong definition in - a shared library. We account for that possibility below by - storing information in the dyn_relocs field of the hash - table entry. A similar situation occurs when creating - shared libraries and symbol visibility changes render the - symbol local. - - If on the other hand, we are creating an executable, we - may need to keep relocations for symbols satisfied by a - dynamic library if we manage to avoid copy relocs for the - symbol. */ - if ((info->shared - && (must_be_dyn_reloc (info, r_type) - || (h != NULL - && (!SYMBOLIC_BIND (info, h) - || h->root.type == bfd_link_hash_defweak - || !h->def_regular)))) - || (ELIMINATE_COPY_RELOCS - && !info->shared - && h != NULL - && (h->root.type == bfd_link_hash_defweak - || !h->def_regular))) - { -#ifdef DEBUG - fprintf (stderr, - "ppc_elf_check_relocs needs to " - "create relocation for %s\n", - (h && h->root.root.string - ? h->root.root.string : "<unknown>")); -#endif - if (sreloc == NULL) - { - if (htab->elf.dynobj == NULL) - htab->elf.dynobj = abfd; - - sreloc = _bfd_elf_make_dynamic_reloc_section - (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); - - if (sreloc == NULL) - return FALSE; - } - - /* If this is a global symbol, we count the number of - relocations we need for this symbol. */ - if (h != NULL) - { - struct elf_dyn_relocs *p; - struct elf_dyn_relocs **rel_head; - - rel_head = &ppc_elf_hash_entry (h)->dyn_relocs; - p = *rel_head; - if (p == NULL || p->sec != sec) - { - p = bfd_alloc (htab->elf.dynobj, sizeof *p); - if (p == NULL) - return FALSE; - p->next = *rel_head; - *rel_head = p; - p->sec = sec; - p->count = 0; - p->pc_count = 0; - } - p->count += 1; - if (!must_be_dyn_reloc (info, r_type)) - p->pc_count += 1; - } - else - { - /* Track dynamic relocs needed for local syms too. - We really need local syms available to do this - easily. Oh well. */ - struct ppc_dyn_relocs *p; - struct ppc_dyn_relocs **rel_head; - bfd_boolean is_ifunc; - asection *s; - void *vpp; - Elf_Internal_Sym *isym; - - isym = bfd_sym_from_r_symndx (&htab->sym_cache, - abfd, r_symndx); - if (isym == NULL) - return FALSE; - - s = bfd_section_from_elf_index (abfd, isym->st_shndx); - if (s == NULL) - s = sec; - - vpp = &elf_section_data (s)->local_dynrel; - rel_head = (struct ppc_dyn_relocs **) vpp; - is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; - p = *rel_head; - if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) - p = p->next; - if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) - { - p = bfd_alloc (htab->elf.dynobj, sizeof *p); - if (p == NULL) - return FALSE; - p->next = *rel_head; - *rel_head = p; - p->sec = sec; - p->ifunc = is_ifunc; - p->count = 0; - } - p->count += 1; - } - } - - break; - } - } - - return TRUE; -} - - -/* Merge object attributes from IBFD into OBFD. Raise an error if - there are conflicting attributes. */ -static bfd_boolean -ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd) -{ - obj_attribute *in_attr, *in_attrs; - obj_attribute *out_attr, *out_attrs; - - if (!elf_known_obj_attributes_proc (obfd)[0].i) - { - /* This is the first object. Copy the attributes. */ - _bfd_elf_copy_obj_attributes (ibfd, obfd); - - /* Use the Tag_null value to indicate the attributes have been - initialized. */ - elf_known_obj_attributes_proc (obfd)[0].i = 1; - - return TRUE; - } - - in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; - out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; - - /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge - non-conflicting ones. */ - in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; - out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; - if (in_attr->i != out_attr->i) - { - out_attr->type = 1; - if (out_attr->i == 0) - out_attr->i = in_attr->i; - else if (in_attr->i == 0) - ; - else if (out_attr->i == 1 && in_attr->i == 2) - _bfd_error_handler - (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); - else if (out_attr->i == 1 && in_attr->i == 3) - _bfd_error_handler - (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), - obfd, ibfd); - else if (out_attr->i == 3 && in_attr->i == 1) - _bfd_error_handler - (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), - ibfd, obfd); - else if (out_attr->i == 3 && in_attr->i == 2) - _bfd_error_handler - (_("Warning: %B uses soft float, %B uses single-precision hard float"), - ibfd, obfd); - else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3)) - _bfd_error_handler - (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); - else if (in_attr->i > 3) - _bfd_error_handler - (_("Warning: %B uses unknown floating point ABI %d"), ibfd, - in_attr->i); - else - _bfd_error_handler - (_("Warning: %B uses unknown floating point ABI %d"), obfd, - out_attr->i); - } - - /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and - merge non-conflicting ones. */ - in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; - out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; - if (in_attr->i != out_attr->i) - { - const char *in_abi = NULL, *out_abi = NULL; - - switch (in_attr->i) - { - case 1: in_abi = "generic"; break; - case 2: in_abi = "AltiVec"; break; - case 3: in_abi = "SPE"; break; - } - - switch (out_attr->i) - { - case 1: out_abi = "generic"; break; - case 2: out_abi = "AltiVec"; break; - case 3: out_abi = "SPE"; break; - } - - out_attr->type = 1; - if (out_attr->i == 0) - out_attr->i = in_attr->i; - else if (in_attr->i == 0) - ; - /* For now, allow generic to transition to AltiVec or SPE - without a warning. If GCC marked files with their stack - alignment and used don't-care markings for files which are - not affected by the vector ABI, we could warn about this - case too. */ - else if (out_attr->i == 1) - out_attr->i = in_attr->i; - else if (in_attr->i == 1) - ; - else if (in_abi == NULL) - _bfd_error_handler - (_("Warning: %B uses unknown vector ABI %d"), ibfd, - in_attr->i); - else if (out_abi == NULL) - _bfd_error_handler - (_("Warning: %B uses unknown vector ABI %d"), obfd, - in_attr->i); - else - _bfd_error_handler - (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""), - ibfd, obfd, in_abi, out_abi); - } - - /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes - and merge non-conflicting ones. */ - in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; - out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; - if (in_attr->i != out_attr->i) - { - out_attr->type = 1; - if (out_attr->i == 0) - out_attr->i = in_attr->i; - else if (in_attr->i == 0) - ; - else if (out_attr->i == 1 && in_attr->i == 2) - _bfd_error_handler - (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd); - else if (out_attr->i == 2 && in_attr->i == 1) - _bfd_error_handler - (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd); - else if (in_attr->i > 2) - _bfd_error_handler - (_("Warning: %B uses unknown small structure return convention %d"), ibfd, - in_attr->i); - else - _bfd_error_handler - (_("Warning: %B uses unknown small structure return convention %d"), obfd, - out_attr->i); - } - - /* Merge Tag_compatibility attributes and any common GNU ones. */ - _bfd_elf_merge_object_attributes (ibfd, obfd); - - return TRUE; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -static bfd_boolean -ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - flagword old_flags; - flagword new_flags; - bfd_boolean error; - - if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) - return TRUE; - - /* Check if we have the same endianness. */ - if (! _bfd_generic_verify_endian_match (ibfd, obfd)) - return FALSE; - - if (!ppc_elf_merge_obj_attributes (ibfd, obfd)) - return FALSE; - - new_flags = elf_elfheader (ibfd)->e_flags; - old_flags = elf_elfheader (obfd)->e_flags; - if (!elf_flags_init (obfd)) - { - /* First call, no flags set. */ - elf_flags_init (obfd) = TRUE; - elf_elfheader (obfd)->e_flags = new_flags; - } - - /* Compatible flags are ok. */ - else if (new_flags == old_flags) - ; - - /* Incompatible flags. */ - else - { - /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib - to be linked with either. */ - error = FALSE; - if ((new_flags & EF_PPC_RELOCATABLE) != 0 - && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) - { - error = TRUE; - (*_bfd_error_handler) - (_("%B: compiled with -mrelocatable and linked with " - "modules compiled normally"), ibfd); - } - else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 - && (old_flags & EF_PPC_RELOCATABLE) != 0) - { - error = TRUE; - (*_bfd_error_handler) - (_("%B: compiled normally and linked with " - "modules compiled with -mrelocatable"), ibfd); - } - - /* The output is -mrelocatable-lib iff both the input files are. */ - if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) - elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; - - /* The output is -mrelocatable iff it can't be -mrelocatable-lib, - but each input file is either -mrelocatable or -mrelocatable-lib. */ - if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) - && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) - && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) - elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; - - /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if - any module uses it. */ - elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); - - new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); - old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); - - /* Warn about any other mismatches. */ - if (new_flags != old_flags) - { - error = TRUE; - (*_bfd_error_handler) - (_("%B: uses different e_flags (0x%lx) fields " - "than previous modules (0x%lx)"), - ibfd, (long) new_flags, (long) old_flags); - } - - if (error) - { - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - - return TRUE; -} - -static void -ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents, - bfd_vma offset, bfd_vma relocation, - split16_format_type split16_format) - -{ - bfd_vma insn, top5, bottom11; - - insn = bfd_get_32 (output_bfd, contents + offset); - top5 = relocation >> 11; - top5 = top5 << (split16_format == split16a_type ? 20 : 16); - bottom11 = relocation & 0x7ff; - insn |= top5; - insn |= bottom11; - bfd_put_32 (output_bfd, insn, contents + offset); -} - - -/* Choose which PLT scheme to use, and set .plt flags appropriately. - Returns -1 on error, 0 for old PLT, 1 for new PLT. */ -int -ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info, - enum ppc_elf_plt_type plt_style, - int emit_stub_syms) -{ - struct ppc_elf_link_hash_table *htab; - flagword flags; - - htab = ppc_elf_hash_table (info); - - htab->emit_stub_syms = emit_stub_syms; - - if (htab->plt_type == PLT_UNSET) - { - struct elf_link_hash_entry *h; - - if (plt_style == PLT_OLD) - htab->plt_type = PLT_OLD; - else if (info->shared - && htab->elf.dynamic_sections_created - && (h = elf_link_hash_lookup (&htab->elf, "_mcount", - FALSE, FALSE, TRUE)) != NULL - && (h->type == STT_FUNC - || h->needs_plt) - && h->ref_regular - && !(SYMBOL_CALLS_LOCAL (info, h) - || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - && h->root.type == bfd_link_hash_undefweak))) - { - /* Profiling of shared libs (and pies) is not supported with - secure plt, because ppc32 does profiling before a - function prologue and a secure plt pic call stubs needs - r30 to be set up. */ - htab->plt_type = PLT_OLD; - } - else - { - bfd *ibfd; - enum ppc_elf_plt_type plt_type = plt_style; - - /* Look through the reloc flags left by ppc_elf_check_relocs. - Use the old style bss plt if a file makes plt calls - without using the new relocs, and if ld isn't given - --secure-plt and we never see REL16 relocs. */ - if (plt_type == PLT_UNSET) - plt_type = PLT_OLD; - for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) - if (is_ppc_elf (ibfd)) - { - if (ppc_elf_tdata (ibfd)->has_rel16) - plt_type = PLT_NEW; - else if (ppc_elf_tdata (ibfd)->makes_plt_call) - { - plt_type = PLT_OLD; - htab->old_bfd = ibfd; - break; - } - } - htab->plt_type = plt_type; - } - } - if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW) - { - if (htab->old_bfd != NULL) - info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"), - htab->old_bfd); - else - info->callbacks->einfo (_("%P: bss-plt forced by profiling\n")); - } - - BFD_ASSERT (htab->plt_type != PLT_VXWORKS); - - if (htab->plt_type == PLT_NEW) - { - flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - - /* The new PLT is a loaded section. */ - if (htab->plt != NULL - && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) - return -1; - - /* The new GOT is not executable. */ - if (htab->got != NULL - && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) - return -1; - } - else - { - /* Stop an unused .glink section from affecting .text alignment. */ - if (htab->glink != NULL - && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) - return -1; - } - return htab->plt_type == PLT_NEW; -} - -/* Return the section that should be marked against GC for a given - relocation. */ - -static asection * -ppc_elf_gc_mark_hook (asection *sec, - struct bfd_link_info *info, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - if (h != NULL) - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_PPC_GNU_VTINHERIT: - case R_PPC_GNU_VTENTRY: - return NULL; - } - - return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); -} - -/* Update the got, plt and dynamic reloc reference counts for the - section being removed. */ - -static bfd_boolean -ppc_elf_gc_sweep_hook (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - struct ppc_elf_link_hash_table *htab; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_signed_vma *local_got_refcounts; - const Elf_Internal_Rela *rel, *relend; - asection *got2; - - if (info->relocatable) - return TRUE; - - if ((sec->flags & SEC_ALLOC) == 0) - return TRUE; - - elf_section_data (sec)->local_dynrel = NULL; - - htab = ppc_elf_hash_table (info); - symtab_hdr = &elf_symtab_hdr (abfd); - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - got2 = bfd_get_section_by_name (abfd, ".got2"); - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; rel++) - { - unsigned long r_symndx; - enum elf_ppc_reloc_type r_type; - struct elf_link_hash_entry *h = NULL; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - struct elf_dyn_relocs **pp, *p; - struct ppc_elf_link_hash_entry *eh; - - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - eh = (struct ppc_elf_link_hash_entry *) h; - - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) - if (p->sec == sec) - { - /* Everything must go for SEC. */ - *pp = p->next; - break; - } - } - - r_type = ELF32_R_TYPE (rel->r_info); - if (!htab->is_vxworks - && h == NULL - && local_got_refcounts != NULL - && (!info->shared - || is_branch_reloc (r_type))) - { - struct plt_entry **local_plt = (struct plt_entry **) - (local_got_refcounts + symtab_hdr->sh_info); - char *local_got_tls_masks = (char *) - (local_plt + symtab_hdr->sh_info); - if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) - { - struct plt_entry **ifunc = local_plt + r_symndx; - bfd_vma addend = 0; - struct plt_entry *ent; - - if (r_type == R_PPC_PLTREL24 && info->shared) - addend = rel->r_addend; - ent = find_plt_ent (ifunc, got2, addend); - if (ent->plt.refcount > 0) - ent->plt.refcount -= 1; - continue; - } - } - - switch (r_type) - { - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - case R_PPC_GOT_TLSLD16_HI: - case R_PPC_GOT_TLSLD16_HA: - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - case R_PPC_GOT_TLSGD16_HI: - case R_PPC_GOT_TLSGD16_HA: - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - case R_PPC_GOT_TPREL16_HI: - case R_PPC_GOT_TPREL16_HA: - case R_PPC_GOT_DTPREL16: - case R_PPC_GOT_DTPREL16_LO: - case R_PPC_GOT_DTPREL16_HI: - case R_PPC_GOT_DTPREL16_HA: - case R_PPC_GOT16: - case R_PPC_GOT16_LO: - case R_PPC_GOT16_HI: - case R_PPC_GOT16_HA: - if (h != NULL) - { - if (h->got.refcount > 0) - h->got.refcount--; - if (!info->shared) - { - struct plt_entry *ent; - - ent = find_plt_ent (&h->plt.plist, NULL, 0); - if (ent != NULL && ent->plt.refcount > 0) - ent->plt.refcount -= 1; - } - } - else if (local_got_refcounts != NULL) - { - if (local_got_refcounts[r_symndx] > 0) - local_got_refcounts[r_symndx]--; - } - break; - - case R_PPC_REL24: - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - case R_PPC_REL32: - if (h == NULL || h == htab->elf.hgot) - break; - /* Fall thru */ - - case R_PPC_ADDR32: - case R_PPC_ADDR24: - case R_PPC_ADDR16: - case R_PPC_ADDR16_LO: - case R_PPC_ADDR16_HI: - case R_PPC_ADDR16_HA: - case R_PPC_ADDR14: - case R_PPC_ADDR14_BRTAKEN: - case R_PPC_ADDR14_BRNTAKEN: - case R_PPC_UADDR32: - case R_PPC_UADDR16: - if (info->shared) - break; - - case R_PPC_PLT32: - case R_PPC_PLTREL24: - case R_PPC_PLTREL32: - case R_PPC_PLT16_LO: - case R_PPC_PLT16_HI: - case R_PPC_PLT16_HA: - if (h != NULL) - { - bfd_vma addend = 0; - struct plt_entry *ent; - - if (r_type == R_PPC_PLTREL24 && info->shared) - addend = rel->r_addend; - ent = find_plt_ent (&h->plt.plist, got2, addend); - if (ent != NULL && ent->plt.refcount > 0) - ent->plt.refcount -= 1; - } - break; - - default: - break; - } - } - return TRUE; -} - -/* Set plt output section type, htab->tls_get_addr, and call the - generic ELF tls_setup function. */ - -asection * -ppc_elf_tls_setup (bfd *obfd, - struct bfd_link_info *info, - int no_tls_get_addr_opt) -{ - struct ppc_elf_link_hash_table *htab; - - htab = ppc_elf_hash_table (info); - htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", - FALSE, FALSE, TRUE); - if (!no_tls_get_addr_opt) - { - struct elf_link_hash_entry *opt, *tga; - opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", - FALSE, FALSE, TRUE); - if (opt != NULL - && (opt->root.type == bfd_link_hash_defined - || opt->root.type == bfd_link_hash_defweak)) - { - /* If glibc supports an optimized __tls_get_addr call stub, - signalled by the presence of __tls_get_addr_opt, and we'll - be calling __tls_get_addr via a plt call stub, then - make __tls_get_addr point to __tls_get_addr_opt. */ - tga = htab->tls_get_addr; - if (htab->elf.dynamic_sections_created - && tga != NULL - && (tga->type == STT_FUNC - || tga->needs_plt) - && !(SYMBOL_CALLS_LOCAL (info, tga) - || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT - && tga->root.type == bfd_link_hash_undefweak))) - { - struct plt_entry *ent; - for (ent = tga->plt.plist; ent != NULL; ent = ent->next) - if (ent->plt.refcount > 0) - break; - if (ent != NULL) - { - tga->root.type = bfd_link_hash_indirect; - tga->root.u.i.link = &opt->root; - ppc_elf_copy_indirect_symbol (info, opt, tga); - if (opt->dynindx != -1) - { - /* Use __tls_get_addr_opt in dynamic relocations. */ - opt->dynindx = -1; - _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, - opt->dynstr_index); - if (!bfd_elf_link_record_dynamic_symbol (info, opt)) - return FALSE; - } - htab->tls_get_addr = opt; - } - } - } - else - no_tls_get_addr_opt = TRUE; - } - htab->no_tls_get_addr_opt = no_tls_get_addr_opt; - if (htab->plt_type == PLT_NEW - && htab->plt != NULL - && htab->plt->output_section != NULL) - { - elf_section_type (htab->plt->output_section) = SHT_PROGBITS; - elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; - } - - return _bfd_elf_tls_setup (obfd, info); -} - -/* Return TRUE iff REL is a branch reloc with a global symbol matching - HASH. */ - -static bfd_boolean -branch_reloc_hash_match (const bfd *ibfd, - const Elf_Internal_Rela *rel, - const struct elf_link_hash_entry *hash) -{ - Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); - enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); - unsigned int r_symndx = ELF32_R_SYM (rel->r_info); - - if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) - { - struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); - struct elf_link_hash_entry *h; - - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - if (h == hash) - return TRUE; - } - return FALSE; -} - -/* Run through all the TLS relocs looking for optimization - opportunities. */ - -bfd_boolean -ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) -{ - bfd *ibfd; - asection *sec; - struct ppc_elf_link_hash_table *htab; - int pass; - - if (info->relocatable || !info->executable) - return TRUE; - - htab = ppc_elf_hash_table (info); - if (htab == NULL) - return FALSE; - - /* Make two passes through the relocs. First time check that tls - relocs involved in setting up a tls_get_addr call are indeed - followed by such a call. If they are not, don't do any tls - optimization. On the second pass twiddle tls_mask flags to - notify relocate_section that optimization can be done, and - adjust got and plt refcounts. */ - for (pass = 0; pass < 2; ++pass) - for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) - { - Elf_Internal_Sym *locsyms = NULL; - Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); - asection *got2 = bfd_get_section_by_name (ibfd, ".got2"); - - for (sec = ibfd->sections; sec != NULL; sec = sec->next) - if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) - { - Elf_Internal_Rela *relstart, *rel, *relend; - int expecting_tls_get_addr = 0; - - /* Read the relocations. */ - relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, - info->keep_memory); - if (relstart == NULL) - return FALSE; - - relend = relstart + sec->reloc_count; - for (rel = relstart; rel < relend; rel++) - { - enum elf_ppc_reloc_type r_type; - unsigned long r_symndx; - struct elf_link_hash_entry *h = NULL; - char *tls_mask; - char tls_set, tls_clear; - bfd_boolean is_local; - bfd_signed_vma *got_count; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - struct elf_link_hash_entry **sym_hashes; - - sym_hashes = elf_sym_hashes (ibfd); - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - - is_local = FALSE; - if (h == NULL - || !h->def_dynamic) - is_local = TRUE; - - r_type = ELF32_R_TYPE (rel->r_info); - /* If this section has old-style __tls_get_addr calls - without marker relocs, then check that each - __tls_get_addr call reloc is preceded by a reloc - that conceivably belongs to the __tls_get_addr arg - setup insn. If we don't find matching arg setup - relocs, don't do any tls optimization. */ - if (pass == 0 - && sec->has_tls_get_addr_call - && h != NULL - && h == htab->tls_get_addr - && !expecting_tls_get_addr - && is_branch_reloc (r_type)) - { - info->callbacks->minfo ("%H __tls_get_addr lost arg, " - "TLS optimization disabled\n", - ibfd, sec, rel->r_offset); - if (elf_section_data (sec)->relocs != relstart) - free (relstart); - return TRUE; - } - - expecting_tls_get_addr = 0; - switch (r_type) - { - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - expecting_tls_get_addr = 1; - /* Fall thru */ - - case R_PPC_GOT_TLSLD16_HI: - case R_PPC_GOT_TLSLD16_HA: - /* These relocs should never be against a symbol - defined in a shared lib. Leave them alone if - that turns out to be the case. */ - if (!is_local) - continue; - - /* LD -> LE */ - tls_set = 0; - tls_clear = TLS_LD; - break; - - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - expecting_tls_get_addr = 1; - /* Fall thru */ - - case R_PPC_GOT_TLSGD16_HI: - case R_PPC_GOT_TLSGD16_HA: - if (is_local) - /* GD -> LE */ - tls_set = 0; - else - /* GD -> IE */ - tls_set = TLS_TLS | TLS_TPRELGD; - tls_clear = TLS_GD; - break; - - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - case R_PPC_GOT_TPREL16_HI: - case R_PPC_GOT_TPREL16_HA: - if (is_local) - { - /* IE -> LE */ - tls_set = 0; - tls_clear = TLS_TPREL; - break; - } - else - continue; - - case R_PPC_TLSGD: - case R_PPC_TLSLD: - expecting_tls_get_addr = 2; - tls_set = 0; - tls_clear = 0; - break; - - default: - continue; - } - - if (pass == 0) - { - if (!expecting_tls_get_addr - || (expecting_tls_get_addr == 1 - && !sec->has_tls_get_addr_call)) - continue; - - if (rel + 1 < relend - && branch_reloc_hash_match (ibfd, rel + 1, - htab->tls_get_addr)) - continue; - - /* Uh oh, we didn't find the expected call. We - could just mark this symbol to exclude it - from tls optimization but it's safer to skip - the entire optimization. */ - info->callbacks->minfo (_("%H arg lost __tls_get_addr, " - "TLS optimization disabled\n"), - ibfd, sec, rel->r_offset); - if (elf_section_data (sec)->relocs != relstart) - free (relstart); - return TRUE; - } - - if (expecting_tls_get_addr) - { - struct plt_entry *ent; - bfd_vma addend = 0; - - if (info->shared - && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24) - addend = rel[1].r_addend; - ent = find_plt_ent (&htab->tls_get_addr->plt.plist, - got2, addend); - if (ent != NULL && ent->plt.refcount > 0) - ent->plt.refcount -= 1; - - if (expecting_tls_get_addr == 2) - continue; - } - - if (h != NULL) - { - tls_mask = &ppc_elf_hash_entry (h)->tls_mask; - got_count = &h->got.refcount; - } - else - { - bfd_signed_vma *lgot_refs; - struct plt_entry **local_plt; - char *lgot_masks; - - if (locsyms == NULL) - { - locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; - if (locsyms == NULL) - locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, - symtab_hdr->sh_info, - 0, NULL, NULL, NULL); - if (locsyms == NULL) - { - if (elf_section_data (sec)->relocs != relstart) - free (relstart); - return FALSE; - } - } - lgot_refs = elf_local_got_refcounts (ibfd); - if (lgot_refs == NULL) - abort (); - local_plt = (struct plt_entry **) - (lgot_refs + symtab_hdr->sh_info); - lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); - tls_mask = &lgot_masks[r_symndx]; - got_count = &lgot_refs[r_symndx]; - } - - if (tls_set == 0) - { - /* We managed to get rid of a got entry. */ - if (*got_count > 0) - *got_count -= 1; - } - - *tls_mask |= tls_set; - *tls_mask &= ~tls_clear; - } - - if (elf_section_data (sec)->relocs != relstart) - free (relstart); - } - - if (locsyms != NULL - && (symtab_hdr->contents != (unsigned char *) locsyms)) - { - if (!info->keep_memory) - free (locsyms); - else - symtab_hdr->contents = (unsigned char *) locsyms; - } - } - return TRUE; -} - -/* Return true if we have dynamic relocs that apply to read-only sections. */ - -static bfd_boolean -readonly_dynrelocs (struct elf_link_hash_entry *h) -{ - struct elf_dyn_relocs *p; - - for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) - { - asection *s = p->sec->output_section; - - if (s != NULL - && ((s->flags & (SEC_READONLY | SEC_ALLOC)) - == (SEC_READONLY | SEC_ALLOC))) - return TRUE; - } - return FALSE; -} - -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -static bfd_boolean -ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct ppc_elf_link_hash_table *htab; - asection *s; - -#ifdef DEBUG - fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", - h->root.root.string); -#endif - - /* Make sure we know what is going on here. */ - htab = ppc_elf_hash_table (info); - BFD_ASSERT (htab->elf.dynobj != NULL - && (h->needs_plt - || h->type == STT_GNU_IFUNC - || h->u.weakdef != NULL - || (h->def_dynamic - && h->ref_regular - && !h->def_regular))); - - /* Deal with function syms. */ - if (h->type == STT_FUNC - || h->type == STT_GNU_IFUNC - || h->needs_plt) - { - /* Clear procedure linkage table information for any symbol that - won't need a .plt entry. */ - struct plt_entry *ent; - for (ent = h->plt.plist; ent != NULL; ent = ent->next) - if (ent->plt.refcount > 0) - break; - if (ent == NULL - || (h->type != STT_GNU_IFUNC - && (SYMBOL_CALLS_LOCAL (info, h) - || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - && h->root.type == bfd_link_hash_undefweak)))) - { - /* A PLT entry is not required/allowed when: - - 1. We are not using ld.so; because then the PLT entry - can't be set up, so we can't use one. In this case, - ppc_elf_adjust_dynamic_symbol won't even be called. - - 2. GC has rendered the entry unused. - - 3. We know for certain that a call to this symbol - will go to this object, or will remain undefined. */ - h->plt.plist = NULL; - h->needs_plt = 0; - } - else - { - /* After adjust_dynamic_symbol, non_got_ref set in the - non-shared case means that we have allocated space in - .dynbss for the symbol and thus dyn_relocs for this - symbol should be discarded. - If we get here we know we are making a PLT entry for this - symbol, and in an executable we'd normally resolve - relocations against this symbol to the PLT entry. Allow - dynamic relocs if the reference is weak, and the dynamic - relocs will not cause text relocation. */ - if (!h->ref_regular_nonweak - && h->non_got_ref - && h->type != STT_GNU_IFUNC - && !htab->is_vxworks - && !ppc_elf_hash_entry (h)->has_sda_refs - && !readonly_dynrelocs (h)) - h->non_got_ref = 0; - } - return TRUE; - } - else - h->plt.plist = NULL; - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->u.weakdef != NULL) - { - BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined - || h->u.weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->u.weakdef->root.u.def.section; - h->root.u.def.value = h->u.weakdef->root.u.def.value; - if (ELIMINATE_COPY_RELOCS) - h->non_got_ref = h->u.weakdef->non_got_ref; - return TRUE; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (info->shared) - return TRUE; - - /* If there are no references to this symbol that do not use the - GOT, we don't need to generate a copy reloc. */ - if (!h->non_got_ref) - return TRUE; - - /* If we didn't find any dynamic relocs in read-only sections, then - we'll be keeping the dynamic relocs and avoiding the copy reloc. - We can't do this if there are any small data relocations. This - doesn't work on VxWorks, where we can not have dynamic - relocations (other than copy and jump slot relocations) in an - executable. */ - if (ELIMINATE_COPY_RELOCS - && !ppc_elf_hash_entry (h)->has_sda_refs - && !htab->is_vxworks - && !h->def_regular - && !readonly_dynrelocs (h)) - { - h->non_got_ref = 0; - return TRUE; - } - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - both the dynamic object and the regular object will refer to the - same memory location for the variable. - - Of course, if the symbol is referenced using SDAREL relocs, we - must instead allocate it in .sbss. */ - - if (ppc_elf_hash_entry (h)->has_sda_refs) - s = htab->dynsbss; - else - s = htab->dynbss; - BFD_ASSERT (s != NULL); - - /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to - copy the initial value out of the dynamic object and into the - runtime process image. We need to remember the offset into the - .rela.bss section we are going to use. */ - if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) - { - asection *srel; - - if (ppc_elf_hash_entry (h)->has_sda_refs) - srel = htab->relsbss; - else - srel = htab->relbss; - BFD_ASSERT (srel != NULL); - srel->size += sizeof (Elf32_External_Rela); - h->needs_copy = 1; - } - - return _bfd_elf_adjust_dynamic_copy (h, s); -} - -/* Generate a symbol to mark plt call stubs. For non-PIC code the sym is - xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, - specifying the addend on the plt relocation. For -fpic code, the sym - is xxxxxxxx.plt_pic32.<callee>, and for -fPIC - xxxxxxxx.got2.plt_pic32.<callee>. */ - -static bfd_boolean -add_stub_sym (struct plt_entry *ent, - struct elf_link_hash_entry *h, - struct bfd_link_info *info) -{ - struct elf_link_hash_entry *sh; - size_t len1, len2, len3; - char *name; - const char *stub; - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - - if (info->shared) - stub = ".plt_pic32."; - else - stub = ".plt_call32."; - - len1 = strlen (h->root.root.string); - len2 = strlen (stub); - len3 = 0; - if (ent->sec) - len3 = strlen (ent->sec->name); - name = bfd_malloc (len1 + len2 + len3 + 9); - if (name == NULL) - return FALSE; - sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); - if (ent->sec) - memcpy (name + 8, ent->sec->name, len3); - memcpy (name + 8 + len3, stub, len2); - memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); - sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); - if (sh == NULL) - return FALSE; - if (sh->root.type == bfd_link_hash_new) - { - sh->root.type = bfd_link_hash_defined; - sh->root.u.def.section = htab->glink; - sh->root.u.def.value = ent->glink_offset; - sh->ref_regular = 1; - sh->def_regular = 1; - sh->ref_regular_nonweak = 1; - sh->forced_local = 1; - sh->non_elf = 0; - } - return TRUE; -} - -/* Allocate NEED contiguous space in .got, and return the offset. - Handles allocation of the got header when crossing 32k. */ - -static bfd_vma -allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) -{ - bfd_vma where; - unsigned int max_before_header; - - if (htab->plt_type == PLT_VXWORKS) - { - where = htab->got->size; - htab->got->size += need; - } - else - { - max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; - if (need <= htab->got_gap) - { - where = max_before_header - htab->got_gap; - htab->got_gap -= need; - } - else - { - if (htab->got->size + need > max_before_header - && htab->got->size <= max_before_header) - { - htab->got_gap = max_before_header - htab->got->size; - htab->got->size = max_before_header + htab->got_header_size; - } - where = htab->got->size; - htab->got->size += need; - } - } - return where; -} - -/* Allocate space in associated reloc sections for dynamic relocs. */ - -static bfd_boolean -allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) -{ - struct bfd_link_info *info = inf; - struct ppc_elf_link_hash_entry *eh; - struct ppc_elf_link_hash_table *htab; - struct elf_dyn_relocs *p; - - if (h->root.type == bfd_link_hash_indirect) - return TRUE; - - htab = ppc_elf_hash_table (info); - if (htab->elf.dynamic_sections_created - || h->type == STT_GNU_IFUNC) - { - struct plt_entry *ent; - bfd_boolean doneone = FALSE; - bfd_vma plt_offset = 0, glink_offset = 0; - bfd_boolean dyn; - - for (ent = h->plt.plist; ent != NULL; ent = ent->next) - if (ent->plt.refcount > 0) - { - /* Make sure this symbol is output as a dynamic symbol. */ - if (h->dynindx == -1 - && !h->forced_local - && !h->def_regular - && htab->elf.dynamic_sections_created) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - dyn = htab->elf.dynamic_sections_created; - if (info->shared - || h->type == STT_GNU_IFUNC - || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) - { - asection *s = htab->plt; - if (!dyn || h->dynindx == -1) - s = htab->iplt; - - if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1) - { - if (!doneone) - { - plt_offset = s->size; - s->size += 4; - } - ent->plt.offset = plt_offset; - - s = htab->glink; - if (!doneone || info->shared) - { - glink_offset = s->size; - s->size += GLINK_ENTRY_SIZE; - if (h == htab->tls_get_addr - && !htab->no_tls_get_addr_opt) - s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE; - } - if (!doneone - && !info->shared - && h->def_dynamic - && !h->def_regular) - { - h->root.u.def.section = s; - h->root.u.def.value = glink_offset; - } - ent->glink_offset = glink_offset; - - if (htab->emit_stub_syms - && !add_stub_sym (ent, h, info)) - return FALSE; - } - else - { - if (!doneone) - { - /* If this is the first .plt entry, make room - for the special first entry. */ - if (s->size == 0) - s->size += htab->plt_initial_entry_size; - - /* The PowerPC PLT is actually composed of two - parts, the first part is 2 words (for a load - and a jump), and then there is a remaining - word available at the end. */ - plt_offset = (htab->plt_initial_entry_size - + (htab->plt_slot_size - * ((s->size - - htab->plt_initial_entry_size) - / htab->plt_entry_size))); - - /* If this symbol is not defined in a regular - file, and we are not generating a shared - library, then set the symbol to this location - in the .plt. This is to avoid text - relocations, and is required to make - function pointers compare as equal between - the normal executable and the shared library. */ - if (! info->shared - && h->def_dynamic - && !h->def_regular) - { - h->root.u.def.section = s; - h->root.u.def.value = plt_offset; - } - - /* Make room for this entry. */ - s->size += htab->plt_entry_size; - /* After the 8192nd entry, room for two entries - is allocated. */ - if (htab->plt_type == PLT_OLD - && (s->size - htab->plt_initial_entry_size) - / htab->plt_entry_size - > PLT_NUM_SINGLE_ENTRIES) - s->size += htab->plt_entry_size; - } - ent->plt.offset = plt_offset; - } - - /* We also need to make an entry in the .rela.plt section. */ - if (!doneone) - { - if (!htab->elf.dynamic_sections_created - || h->dynindx == -1) - htab->reliplt->size += sizeof (Elf32_External_Rela); - else - { - htab->relplt->size += sizeof (Elf32_External_Rela); - - if (htab->plt_type == PLT_VXWORKS) - { - /* Allocate space for the unloaded relocations. */ - if (!info->shared - && htab->elf.dynamic_sections_created) - { - if (ent->plt.offset - == (bfd_vma) htab->plt_initial_entry_size) - { - htab->srelplt2->size - += (sizeof (Elf32_External_Rela) - * VXWORKS_PLTRESOLVE_RELOCS); - } - - htab->srelplt2->size - += (sizeof (Elf32_External_Rela) - * VXWORKS_PLT_NON_JMP_SLOT_RELOCS); - } - - /* Every PLT entry has an associated GOT entry in - .got.plt. */ - htab->sgotplt->size += 4; - } - } - doneone = TRUE; - } - } - else - ent->plt.offset = (bfd_vma) -1; - } - else - ent->plt.offset = (bfd_vma) -1; - - if (!doneone) - { - h->plt.plist = NULL; - h->needs_plt = 0; - } - } - else - { - h->plt.plist = NULL; - h->needs_plt = 0; - } - - eh = (struct ppc_elf_link_hash_entry *) h; - if (eh->elf.got.refcount > 0) - { - bfd_boolean dyn; - unsigned int need; - - /* Make sure this symbol is output as a dynamic symbol. */ - if (eh->elf.dynindx == -1 - && !eh->elf.forced_local - && eh->elf.type != STT_GNU_IFUNC - && htab->elf.dynamic_sections_created) - { - if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) - return FALSE; - } - - need = 0; - if ((eh->tls_mask & TLS_TLS) != 0) - { - if ((eh->tls_mask & TLS_LD) != 0) - { - if (!eh->elf.def_dynamic) - /* We'll just use htab->tlsld_got.offset. This should - always be the case. It's a little odd if we have - a local dynamic reloc against a non-local symbol. */ - htab->tlsld_got.refcount += 1; - else - need += 8; - } - if ((eh->tls_mask & TLS_GD) != 0) - need += 8; - if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) - need += 4; - if ((eh->tls_mask & TLS_DTPREL) != 0) - need += 4; - } - else - need += 4; - if (need == 0) - eh->elf.got.offset = (bfd_vma) -1; - else - { - eh->elf.got.offset = allocate_got (htab, need); - dyn = htab->elf.dynamic_sections_created; - if ((info->shared - || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) - && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT - || eh->elf.root.type != bfd_link_hash_undefweak)) - { - asection *rsec = htab->relgot; - - if (eh->elf.type == STT_GNU_IFUNC) - rsec = htab->reliplt; - /* All the entries we allocated need relocs. - Except LD only needs one. */ - if ((eh->tls_mask & TLS_LD) != 0 - && eh->elf.def_dynamic) - need -= 4; - rsec->size += need * (sizeof (Elf32_External_Rela) / 4); - } - } - } - else - eh->elf.got.offset = (bfd_vma) -1; - - if (eh->dyn_relocs == NULL - || !htab->elf.dynamic_sections_created) - return TRUE; - - /* In the shared -Bsymbolic case, discard space allocated for - dynamic pc-relative relocs against symbols which turn out to be - defined in regular objects. For the normal shared case, discard - space for relocs that have become local due to symbol visibility - changes. */ - - if (info->shared) - { - /* Relocs that use pc_count are those that appear on a call insn, - or certain REL relocs (see must_be_dyn_reloc) that can be - generated via assembly. We want calls to protected symbols to - resolve directly to the function rather than going via the plt. - If people want function pointer comparisons to work as expected - then they should avoid writing weird assembly. */ - if (SYMBOL_CALLS_LOCAL (info, h)) - { - struct elf_dyn_relocs **pp; - - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) - { - p->count -= p->pc_count; - p->pc_count = 0; - if (p->count == 0) - *pp = p->next; - else - pp = &p->next; - } - } - - if (htab->is_vxworks) - { - struct elf_dyn_relocs **pp; - - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) - { - if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) - *pp = p->next; - else - pp = &p->next; - } - } - - /* Discard relocs on undefined symbols that must be local. */ - if (eh->dyn_relocs != NULL - && h->root.type == bfd_link_hash_undefined - && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN - || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) - eh->dyn_relocs = NULL; - - /* Also discard relocs on undefined weak syms with non-default - visibility. */ - if (eh->dyn_relocs != NULL - && h->root.type == bfd_link_hash_undefweak) - { - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) - eh->dyn_relocs = NULL; - - /* Make sure undefined weak symbols are output as a dynamic - symbol in PIEs. */ - else if (h->dynindx == -1 - && !h->forced_local - && !h->def_regular) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - } - } - else if (ELIMINATE_COPY_RELOCS) - { - /* For the non-shared case, discard space for relocs against - symbols which turn out to need copy relocs or are not - dynamic. */ - - if (!h->non_got_ref - && !h->def_regular) - { - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - /* If that succeeded, we know we'll be keeping all the - relocs. */ - if (h->dynindx != -1) - goto keep; - } - - eh->dyn_relocs = NULL; - - keep: ; - } - - /* Finally, allocate space. */ - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - asection *sreloc = elf_section_data (p->sec)->sreloc; - if (eh->elf.type == STT_GNU_IFUNC) - sreloc = htab->reliplt; - sreloc->size += p->count * sizeof (Elf32_External_Rela); - } - - return TRUE; -} - -/* Set DF_TEXTREL if we find any dynamic relocs that apply to - read-only sections. */ - -static bfd_boolean -maybe_set_textrel (struct elf_link_hash_entry *h, void *info) -{ - if (h->root.type == bfd_link_hash_indirect) - return TRUE; - - if (readonly_dynrelocs (h)) - { - ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; - - /* Not an error, just cut short the traversal. */ - return FALSE; - } - return TRUE; -} - -static const unsigned char glink_eh_frame_cie[] = -{ - 0, 0, 0, 16, /* length. */ - 0, 0, 0, 0, /* id. */ - 1, /* CIE version. */ - 'z', 'R', 0, /* Augmentation string. */ - 4, /* Code alignment. */ - 0x7c, /* Data alignment. */ - 65, /* RA reg. */ - 1, /* Augmentation size. */ - DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ - DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ -}; - -/* Set the sizes of the dynamic sections. */ - -static bfd_boolean -ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) -{ - struct ppc_elf_link_hash_table *htab; - asection *s; - bfd_boolean relocs; - bfd *ibfd; - -#ifdef DEBUG - fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); -#endif - - htab = ppc_elf_hash_table (info); - BFD_ASSERT (htab->elf.dynobj != NULL); - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Set the contents of the .interp section to the interpreter. */ - if (info->executable) - { - s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - } - - if (htab->plt_type == PLT_OLD) - htab->got_header_size = 16; - else if (htab->plt_type == PLT_NEW) - htab->got_header_size = 12; - - /* Set up .got offsets for local syms, and space for local dynamic - relocs. */ - for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) - { - bfd_signed_vma *local_got; - bfd_signed_vma *end_local_got; - struct plt_entry **local_plt; - struct plt_entry **end_local_plt; - char *lgot_masks; - bfd_size_type locsymcount; - Elf_Internal_Shdr *symtab_hdr; - - if (!is_ppc_elf (ibfd)) - continue; - - for (s = ibfd->sections; s != NULL; s = s->next) - { - struct ppc_dyn_relocs *p; - - for (p = ((struct ppc_dyn_relocs *) - elf_section_data (s)->local_dynrel); - p != NULL; - p = p->next) - { - if (!bfd_is_abs_section (p->sec) - && bfd_is_abs_section (p->sec->output_section)) - { - /* Input section has been discarded, either because - it is a copy of a linkonce section or due to - linker script /DISCARD/, so we'll be discarding - the relocs too. */ - } - else if (htab->is_vxworks - && strcmp (p->sec->output_section->name, - ".tls_vars") == 0) - { - /* Relocations in vxworks .tls_vars sections are - handled specially by the loader. */ - } - else if (p->count != 0) - { - asection *sreloc = elf_section_data (p->sec)->sreloc; - if (p->ifunc) - sreloc = htab->reliplt; - sreloc->size += p->count * sizeof (Elf32_External_Rela); - if ((p->sec->output_section->flags - & (SEC_READONLY | SEC_ALLOC)) - == (SEC_READONLY | SEC_ALLOC)) - info->flags |= DF_TEXTREL; - } - } - } - - local_got = elf_local_got_refcounts (ibfd); - if (!local_got) - continue; - - symtab_hdr = &elf_symtab_hdr (ibfd); - locsymcount = symtab_hdr->sh_info; - end_local_got = local_got + locsymcount; - local_plt = (struct plt_entry **) end_local_got; - end_local_plt = local_plt + locsymcount; - lgot_masks = (char *) end_local_plt; - - for (; local_got < end_local_got; ++local_got, ++lgot_masks) - if (*local_got > 0) - { - unsigned int need = 0; - if ((*lgot_masks & TLS_TLS) != 0) - { - if ((*lgot_masks & TLS_GD) != 0) - need += 8; - if ((*lgot_masks & TLS_LD) != 0) - htab->tlsld_got.refcount += 1; - if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) - need += 4; - if ((*lgot_masks & TLS_DTPREL) != 0) - need += 4; - } - else - need += 4; - if (need == 0) - *local_got = (bfd_vma) -1; - else - { - *local_got = allocate_got (htab, need); - if (info->shared) - { - asection *srel = htab->relgot; - if ((*lgot_masks & PLT_IFUNC) != 0) - srel = htab->reliplt; - srel->size += need * (sizeof (Elf32_External_Rela) / 4); - } - } - } - else - *local_got = (bfd_vma) -1; - - if (htab->is_vxworks) - continue; - - /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ - for (; local_plt < end_local_plt; ++local_plt) - { - struct plt_entry *ent; - bfd_boolean doneone = FALSE; - bfd_vma plt_offset = 0, glink_offset = 0; - - for (ent = *local_plt; ent != NULL; ent = ent->next) - if (ent->plt.refcount > 0) - { - s = htab->iplt; - - if (!doneone) - { - plt_offset = s->size; - s->size += 4; - } - ent->plt.offset = plt_offset; - - s = htab->glink; - if (!doneone || info->shared) - { - glink_offset = s->size; - s->size += GLINK_ENTRY_SIZE; - } - ent->glink_offset = glink_offset; - - if (!doneone) - { - htab->reliplt->size += sizeof (Elf32_External_Rela); - doneone = TRUE; - } - } - else - ent->plt.offset = (bfd_vma) -1; - } - } - - /* Allocate space for global sym dynamic relocs. */ - elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); - - if (htab->tlsld_got.refcount > 0) - { - htab->tlsld_got.offset = allocate_got (htab, 8); - if (info->shared) - htab->relgot->size += sizeof (Elf32_External_Rela); - } - else - htab->tlsld_got.offset = (bfd_vma) -1; - - if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) - { - unsigned int g_o_t = 32768; - - /* If we haven't allocated the header, do so now. When we get here, - for old plt/got the got size will be 0 to 32764 (not allocated), - or 32780 to 65536 (header allocated). For new plt/got, the - corresponding ranges are 0 to 32768 and 32780 to 65536. */ - if (htab->got->size <= 32768) - { - g_o_t = htab->got->size; - if (htab->plt_type == PLT_OLD) - g_o_t += 4; - htab->got->size += htab->got_header_size; - } - - htab->elf.hgot->root.u.def.value = g_o_t; - } - if (info->shared) - { - struct elf_link_hash_entry *sda = htab->sdata[0].sym; - if (sda != NULL - && !(sda->root.type == bfd_link_hash_defined - || sda->root.type == bfd_link_hash_defweak)) - { - sda->root.type = bfd_link_hash_defined; - sda->root.u.def.section = htab->elf.hgot->root.u.def.section; - sda->root.u.def.value = htab->elf.hgot->root.u.def.value; - } - } - - if (htab->glink != NULL - && htab->glink->size != 0 - && htab->elf.dynamic_sections_created) - { - htab->glink_pltresolve = htab->glink->size; - /* Space for the branch table. */ - htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; - /* Pad out to align the start of PLTresolve. */ - htab->glink->size += -htab->glink->size & 15; - htab->glink->size += GLINK_PLTRESOLVE; - - if (htab->emit_stub_syms) - { - struct elf_link_hash_entry *sh; - sh = elf_link_hash_lookup (&htab->elf, "__glink", - TRUE, FALSE, FALSE); - if (sh == NULL) - return FALSE; - if (sh->root.type == bfd_link_hash_new) - { - sh->root.type = bfd_link_hash_defined; - sh->root.u.def.section = htab->glink; - sh->root.u.def.value = htab->glink_pltresolve; - sh->ref_regular = 1; - sh->def_regular = 1; - sh->ref_regular_nonweak = 1; - sh->forced_local = 1; - sh->non_elf = 0; - } - sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", - TRUE, FALSE, FALSE); - if (sh == NULL) - return FALSE; - if (sh->root.type == bfd_link_hash_new) - { - sh->root.type = bfd_link_hash_defined; - sh->root.u.def.section = htab->glink; - sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; - sh->ref_regular = 1; - sh->def_regular = 1; - sh->ref_regular_nonweak = 1; - sh->forced_local = 1; - sh->non_elf = 0; - } - } - } - - if (htab->glink != NULL - && htab->glink->size != 0 - && htab->glink_eh_frame != NULL - && !bfd_is_abs_section (htab->glink_eh_frame->output_section) - && _bfd_elf_eh_frame_present (info)) - { - s = htab->glink_eh_frame; - s->size = sizeof (glink_eh_frame_cie) + 20; - if (info->shared) - { - s->size += 4; - if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256) - s->size += 4; - } - } - - /* We've now determined the sizes of the various dynamic sections. - Allocate memory for them. */ - relocs = FALSE; - for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) - { - bfd_boolean strip_section = TRUE; - - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - if (s == htab->plt - || s == htab->got) - { - /* We'd like to strip these sections if they aren't needed, but if - we've exported dynamic symbols from them we must leave them. - It's too late to tell BFD to get rid of the symbols. */ - if (htab->elf.hplt != NULL) - strip_section = FALSE; - /* Strip this section if we don't need it; see the - comment below. */ - } - else if (s == htab->iplt - || s == htab->glink - || s == htab->glink_eh_frame - || s == htab->sgotplt - || s == htab->sbss - || s == htab->dynbss - || s == htab->dynsbss - || s == htab->sdata[0].section - || s == htab->sdata[1].section) - { - /* Strip these too. */ - } - else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s), - ".rela")) - { - if (s->size != 0) - { - /* Remember whether there are any relocation sections. */ - relocs = TRUE; - - /* We use the reloc_count field as a counter if we need - to copy relocs into the output file. */ - s->reloc_count = 0; - } - } - else - { - /* It's not one of our sections, so don't allocate space. */ - continue; - } - - if (s->size == 0 && strip_section) - { - /* If we don't need this section, strip it from the - output file. This is mostly to handle .rela.bss and - .rela.plt. We must create both sections in - create_dynamic_sections, because they must be created - before the linker maps input sections to output - sections. The linker does that before - adjust_dynamic_symbol is called, and it is that - function which decides whether anything needs to go - into these sections. */ - s->flags |= SEC_EXCLUDE; - continue; - } - - if ((s->flags & SEC_HAS_CONTENTS) == 0) - continue; - - /* Allocate memory for the section contents. */ - s->contents = bfd_zalloc (htab->elf.dynobj, s->size); - if (s->contents == NULL) - return FALSE; - } - - if (htab->elf.dynamic_sections_created) - { - /* Add some entries to the .dynamic section. We fill in the - values later, in ppc_elf_finish_dynamic_sections, but we - must add the entries now so that we get the correct size for - the .dynamic section. The DT_DEBUG entry is filled in by the - dynamic linker and used by the debugger. */ -#define add_dynamic_entry(TAG, VAL) \ - _bfd_elf_add_dynamic_entry (info, TAG, VAL) - - if (info->executable) - { - if (!add_dynamic_entry (DT_DEBUG, 0)) - return FALSE; - } - - if (htab->plt != NULL && htab->plt->size != 0) - { - if (!add_dynamic_entry (DT_PLTGOT, 0) - || !add_dynamic_entry (DT_PLTRELSZ, 0) - || !add_dynamic_entry (DT_PLTREL, DT_RELA) - || !add_dynamic_entry (DT_JMPREL, 0)) - return FALSE; - } - - if (htab->glink != NULL && htab->glink->size != 0) - { - if (!add_dynamic_entry (DT_PPC_GOT, 0)) - return FALSE; - if (!htab->no_tls_get_addr_opt - && htab->tls_get_addr != NULL - && htab->tls_get_addr->plt.plist != NULL - && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS)) - return FALSE; - } - - if (relocs) - { - if (!add_dynamic_entry (DT_RELA, 0) - || !add_dynamic_entry (DT_RELASZ, 0) - || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) - return FALSE; - } - - /* If any dynamic relocs apply to a read-only section, then we - need a DT_TEXTREL entry. */ - if ((info->flags & DF_TEXTREL) == 0) - elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, - info); - - if ((info->flags & DF_TEXTREL) != 0) - { - if (!add_dynamic_entry (DT_TEXTREL, 0)) - return FALSE; - } - if (htab->is_vxworks - && !elf_vxworks_add_dynamic_entries (output_bfd, info)) - return FALSE; - } -#undef add_dynamic_entry - - if (htab->glink_eh_frame != NULL - && htab->glink_eh_frame->contents != NULL) - { - unsigned char *p = htab->glink_eh_frame->contents; - bfd_vma val; - - memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); - /* CIE length (rewrite in case little-endian). */ - bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p); - p += sizeof (glink_eh_frame_cie); - /* FDE length. */ - val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie); - bfd_put_32 (htab->elf.dynobj, val, p); - p += 4; - /* CIE pointer. */ - val = p - htab->glink_eh_frame->contents; - bfd_put_32 (htab->elf.dynobj, val, p); - p += 4; - /* Offset to .glink. Set later. */ - p += 4; - /* .glink size. */ - bfd_put_32 (htab->elf.dynobj, htab->glink->size, p); - p += 4; - /* Augmentation. */ - p += 1; - - if (info->shared - && htab->elf.dynamic_sections_created) - { - bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2; - if (adv < 64) - *p++ = DW_CFA_advance_loc + adv; - else if (adv < 256) - { - *p++ = DW_CFA_advance_loc1; - *p++ = adv; - } - else if (adv < 65536) - { - *p++ = DW_CFA_advance_loc2; - bfd_put_16 (htab->elf.dynobj, adv, p); - p += 2; - } - else - { - *p++ = DW_CFA_advance_loc4; - bfd_put_32 (htab->elf.dynobj, adv, p); - p += 4; - } - *p++ = DW_CFA_register; - *p++ = 65; - p++; - *p++ = DW_CFA_advance_loc + 4; - *p++ = DW_CFA_restore_extended; - *p++ = 65; - } - BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4) - == htab->glink_eh_frame->size); - } - - return TRUE; -} - -/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ - -static bfd_boolean -ppc_elf_hash_symbol (struct elf_link_hash_entry *h) -{ - if (h->plt.plist != NULL - && !h->def_regular - && (!h->pointer_equality_needed - || !h->ref_regular_nonweak)) - return FALSE; - - return _bfd_elf_hash_symbol (h); -} - -#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) - -/* Relaxation trampolines. r12 is available for clobbering (r11, is - used for some functions that are allowed to break the ABI). */ -static const int shared_stub_entry[] = - { - 0x7c0802a6, /* mflr 0 */ - 0x429f0005, /* bcl 20, 31, .Lxxx */ - 0x7d8802a6, /* mflr 12 */ - 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */ - 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */ - 0x7c0803a6, /* mtlr 0 */ - 0x7d8903a6, /* mtctr 12 */ - 0x4e800420, /* bctr */ - }; - -static const int stub_entry[] = - { - 0x3d800000, /* lis 12,xxx@ha */ - 0x398c0000, /* addi 12,12,xxx@l */ - 0x7d8903a6, /* mtctr 12 */ - 0x4e800420, /* bctr */ - }; - -static bfd_boolean -ppc_elf_relax_section (bfd *abfd, - asection *isec, - struct bfd_link_info *link_info, - bfd_boolean *again) -{ - struct one_fixup - { - struct one_fixup *next; - asection *tsec; - /* Final link, can use the symbol offset. For a - relocatable link we use the symbol's index. */ - bfd_vma toff; - bfd_vma trampoff; - }; - - Elf_Internal_Shdr *symtab_hdr; - bfd_byte *contents = NULL; - Elf_Internal_Sym *isymbuf = NULL; - Elf_Internal_Rela *internal_relocs = NULL; - Elf_Internal_Rela *irel, *irelend; - struct one_fixup *fixups = NULL; - unsigned changes = 0; - struct ppc_elf_link_hash_table *htab; - bfd_size_type trampoff; - asection *got2; - bfd_boolean maybe_pasted; - - *again = FALSE; - - /* Nothing to do if there are no relocations, and no need to do - anything with non-alloc or non-code sections. */ - if ((isec->flags & SEC_ALLOC) == 0 - || (isec->flags & SEC_CODE) == 0 - || (isec->flags & SEC_RELOC) == 0 - || isec->reloc_count == 0) - return TRUE; - - /* We cannot represent the required PIC relocs in the output, so don't - do anything. The linker doesn't support mixing -shared and -r - anyway. */ - if (link_info->relocatable && link_info->shared) - return TRUE; - - trampoff = (isec->size + 3) & (bfd_vma) -4; - maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0 - || strcmp (isec->output_section->name, ".fini") == 0); - /* Space for a branch around any trampolines. */ - if (maybe_pasted) - trampoff += 4; - - symtab_hdr = &elf_symtab_hdr (abfd); - - /* Get a copy of the native relocations. */ - internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, - link_info->keep_memory); - if (internal_relocs == NULL) - goto error_return; - - htab = ppc_elf_hash_table (link_info); - got2 = bfd_get_section_by_name (abfd, ".got2"); - - irelend = internal_relocs + isec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - unsigned long r_type = ELF32_R_TYPE (irel->r_info); - bfd_vma toff, roff; - asection *tsec; - struct one_fixup *f; - size_t insn_offset = 0; - bfd_vma max_branch_offset, val; - bfd_byte *hit_addr; - unsigned long t0; - struct elf_link_hash_entry *h; - struct plt_entry **plist; - unsigned char sym_type; - - switch (r_type) - { - case R_PPC_REL24: - case R_PPC_LOCAL24PC: - case R_PPC_PLTREL24: - max_branch_offset = 1 << 25; - break; - - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - max_branch_offset = 1 << 15; - break; - - default: - continue; - } - - /* Get the value of the symbol referred to by the reloc. */ - h = NULL; - if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - /* A local symbol. */ - Elf_Internal_Sym *isym; - - /* Read this BFD's local symbols. */ - if (isymbuf == NULL) - { - isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; - if (isymbuf == NULL) - isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, - symtab_hdr->sh_info, 0, - NULL, NULL, NULL); - if (isymbuf == 0) - goto error_return; - } - isym = isymbuf + ELF32_R_SYM (irel->r_info); - if (isym->st_shndx == SHN_UNDEF) - tsec = bfd_und_section_ptr; - else if (isym->st_shndx == SHN_ABS) - tsec = bfd_abs_section_ptr; - else if (isym->st_shndx == SHN_COMMON) - tsec = bfd_com_section_ptr; - else - tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); - - toff = isym->st_value; - sym_type = ELF_ST_TYPE (isym->st_info); - } - else - { - /* Global symbol handling. */ - unsigned long indx; - - indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; - h = elf_sym_hashes (abfd)[indx]; - - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - tsec = h->root.u.def.section; - toff = h->root.u.def.value; - } - else if (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - { - tsec = bfd_und_section_ptr; - toff = link_info->relocatable ? indx : 0; - } - else - continue; - - sym_type = h->type; - } - - /* The condition here under which we call find_plt_ent must - match that in relocate_section. If we call find_plt_ent here - but not in relocate_section, or vice versa, then the branch - destination used here may be incorrect. */ - plist = NULL; - if (h != NULL) - { - /* We know is_branch_reloc (r_type) is true. */ - if (h->type == STT_GNU_IFUNC - || r_type == R_PPC_PLTREL24) - plist = &h->plt.plist; - } - else if (sym_type == STT_GNU_IFUNC - && elf_local_got_offsets (abfd) != NULL) - { - bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); - struct plt_entry **local_plt = (struct plt_entry **) - (local_got_offsets + symtab_hdr->sh_info); - plist = local_plt + ELF32_R_SYM (irel->r_info); - } - if (plist != NULL) - { - bfd_vma addend = 0; - struct plt_entry *ent; - - if (r_type == R_PPC_PLTREL24 && link_info->shared) - addend = irel->r_addend; - ent = find_plt_ent (plist, got2, addend); - if (ent != NULL) - { - if (htab->plt_type == PLT_NEW - || h == NULL - || !htab->elf.dynamic_sections_created - || h->dynindx == -1) - { - tsec = htab->glink; - toff = ent->glink_offset; - } - else - { - tsec = htab->plt; - toff = ent->plt.offset; - } - } - } - - /* If the branch and target are in the same section, you have - no hope of adding stubs. We'll error out later should the - branch overflow. */ - if (tsec == isec) - continue; - - /* There probably isn't any reason to handle symbols in - SEC_MERGE sections; SEC_MERGE doesn't seem a likely - attribute for a code section, and we are only looking at - branches. However, implement it correctly here as a - reference for other target relax_section functions. */ - if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE) - { - /* At this stage in linking, no SEC_MERGE symbol has been - adjusted, so all references to such symbols need to be - passed through _bfd_merged_section_offset. (Later, in - relocate_section, all SEC_MERGE symbols *except* for - section symbols have been adjusted.) - - gas may reduce relocations against symbols in SEC_MERGE - sections to a relocation against the section symbol when - the original addend was zero. When the reloc is against - a section symbol we should include the addend in the - offset passed to _bfd_merged_section_offset, since the - location of interest is the original symbol. On the - other hand, an access to "sym+addend" where "sym" is not - a section symbol should not include the addend; Such an - access is presumed to be an offset from "sym"; The - location of interest is just "sym". */ - if (sym_type == STT_SECTION) - toff += irel->r_addend; - - toff = _bfd_merged_section_offset (abfd, &tsec, - elf_section_data (tsec)->sec_info, - toff); - - if (sym_type != STT_SECTION) - toff += irel->r_addend; - } - /* PLTREL24 addends are special. */ - else if (r_type != R_PPC_PLTREL24) - toff += irel->r_addend; - - /* Attempted -shared link of non-pic code loses. */ - if (tsec->output_section == NULL) - continue; - - roff = irel->r_offset; - - /* If the branch is in range, no need to do anything. */ - if (tsec != bfd_und_section_ptr - && (!link_info->relocatable - /* A relocatable link may have sections moved during - final link, so do not presume they remain in range. */ - || tsec->output_section == isec->output_section)) - { - bfd_vma symaddr, reladdr; - - symaddr = tsec->output_section->vma + tsec->output_offset + toff; - reladdr = isec->output_section->vma + isec->output_offset + roff; - if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset) - continue; - } - - /* Look for an existing fixup to this address. */ - for (f = fixups; f ; f = f->next) - if (f->tsec == tsec && f->toff == toff) - break; - - if (f == NULL) - { - size_t size; - unsigned long stub_rtype; - - val = trampoff - roff; - if (val >= max_branch_offset) - /* Oh dear, we can't reach a trampoline. Don't try to add - one. We'll report an error later. */ - continue; - - if (link_info->shared) - { - size = 4 * ARRAY_SIZE (shared_stub_entry); - insn_offset = 12; - } - else - { - size = 4 * ARRAY_SIZE (stub_entry); - insn_offset = 0; - } - stub_rtype = R_PPC_RELAX; - if (tsec == htab->plt - || tsec == htab->glink) - { - stub_rtype = R_PPC_RELAX_PLT; - if (r_type == R_PPC_PLTREL24) - stub_rtype = R_PPC_RELAX_PLTREL24; - } - - /* Hijack the old relocation. Since we need two - relocations for this use a "composite" reloc. */ - irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), - stub_rtype); - irel->r_offset = trampoff + insn_offset; - if (r_type == R_PPC_PLTREL24 - && stub_rtype != R_PPC_RELAX_PLTREL24) - irel->r_addend = 0; - - /* Record the fixup so we don't do it again this section. */ - f = bfd_malloc (sizeof (*f)); - f->next = fixups; - f->tsec = tsec; - f->toff = toff; - f->trampoff = trampoff; - fixups = f; - - trampoff += size; - changes++; - } - else - { - val = f->trampoff - roff; - if (val >= max_branch_offset) - continue; - - /* Nop out the reloc, since we're finalizing things here. */ - irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); - } - - /* Get the section contents. */ - if (contents == NULL) - { - /* Get cached copy if it exists. */ - if (elf_section_data (isec)->this_hdr.contents != NULL) - contents = elf_section_data (isec)->this_hdr.contents; - else - { - /* Go get them off disk. */ - if (!bfd_malloc_and_get_section (abfd, isec, &contents)) - goto error_return; - } - } - - /* Fix up the existing branch to hit the trampoline. */ - hit_addr = contents + roff; - switch (r_type) - { - case R_PPC_REL24: - case R_PPC_LOCAL24PC: - case R_PPC_PLTREL24: - t0 = bfd_get_32 (abfd, hit_addr); - t0 &= ~0x3fffffc; - t0 |= val & 0x3fffffc; - bfd_put_32 (abfd, t0, hit_addr); - break; - - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - t0 = bfd_get_32 (abfd, hit_addr); - t0 &= ~0xfffc; - t0 |= val & 0xfffc; - bfd_put_32 (abfd, t0, hit_addr); - break; - } - } - - /* Write out the trampolines. */ - if (fixups != NULL) - { - const int *stub; - bfd_byte *dest; - int i, size; - - do - { - struct one_fixup *f = fixups; - fixups = fixups->next; - free (f); - } - while (fixups); - - contents = bfd_realloc_or_free (contents, trampoff); - if (contents == NULL) - goto error_return; - - isec->size = (isec->size + 3) & (bfd_vma) -4; - dest = contents + isec->size; - /* Branch around the trampolines. */ - if (maybe_pasted) - { - bfd_vma val = B + trampoff - isec->size; - bfd_put_32 (abfd, val, dest); - dest += 4; - } - isec->size = trampoff; - - if (link_info->shared) - { - stub = shared_stub_entry; - size = ARRAY_SIZE (shared_stub_entry); - } - else - { - stub = stub_entry; - size = ARRAY_SIZE (stub_entry); - } - - i = 0; - while (dest < contents + trampoff) - { - bfd_put_32 (abfd, stub[i], dest); - i++; - if (i == size) - i = 0; - dest += 4; - } - BFD_ASSERT (i == 0); - } - - if (isymbuf != NULL - && symtab_hdr->contents != (unsigned char *) isymbuf) - { - if (! link_info->keep_memory) - free (isymbuf); - else - { - /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = (unsigned char *) isymbuf; - } - } - - if (contents != NULL - && elf_section_data (isec)->this_hdr.contents != contents) - { - if (!changes && !link_info->keep_memory) - free (contents); - else - { - /* Cache the section contents for elf_link_input_bfd. */ - elf_section_data (isec)->this_hdr.contents = contents; - } - } - - if (changes != 0) - { - /* Append sufficient NOP relocs so we can write out relocation - information for the trampolines. */ - Elf_Internal_Shdr *rel_hdr; - Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) - * sizeof (*new_relocs)); - unsigned ix; - - if (!new_relocs) - goto error_return; - memcpy (new_relocs, internal_relocs, - isec->reloc_count * sizeof (*new_relocs)); - for (ix = changes; ix--;) - { - irel = new_relocs + ix + isec->reloc_count; - - irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); - } - if (internal_relocs != elf_section_data (isec)->relocs) - free (internal_relocs); - elf_section_data (isec)->relocs = new_relocs; - isec->reloc_count += changes; - rel_hdr = _bfd_elf_single_rel_hdr (isec); - rel_hdr->sh_size += changes * rel_hdr->sh_entsize; - } - else if (elf_section_data (isec)->relocs != internal_relocs) - free (internal_relocs); - - *again = changes != 0; - if (!*again && link_info->relocatable) - { - /* Convert the internal relax relocs to external form. */ - for (irel = internal_relocs; irel < irelend; irel++) - if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX) - { - unsigned long r_symndx = ELF32_R_SYM (irel->r_info); - - /* Rewrite the reloc and convert one of the trailing nop - relocs to describe this relocation. */ - BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE); - /* The relocs are at the bottom 2 bytes */ - irel[0].r_offset += 2; - memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel)); - irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); - irel[1].r_offset += 4; - irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); - irel++; - } - } - - return TRUE; - - error_return: - if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) - free (isymbuf); - if (contents != NULL - && elf_section_data (isec)->this_hdr.contents != contents) - free (contents); - if (internal_relocs != NULL - && elf_section_data (isec)->relocs != internal_relocs) - free (internal_relocs); - return FALSE; -} - -/* What to do when ld finds relocations against symbols defined in - discarded sections. */ - -static unsigned int -ppc_elf_action_discarded (asection *sec) -{ - if (strcmp (".fixup", sec->name) == 0) - return 0; - - if (strcmp (".got2", sec->name) == 0) - return 0; - - return _bfd_elf_default_action_discarded (sec); -} - -/* Fill in the address for a pointer generated in a linker section. */ - -static bfd_vma -elf_finish_pointer_linker_section (bfd *input_bfd, - elf_linker_section_t *lsect, - struct elf_link_hash_entry *h, - bfd_vma relocation, - const Elf_Internal_Rela *rel) -{ - elf_linker_section_pointers_t *linker_section_ptr; - - BFD_ASSERT (lsect != NULL); - - if (h != NULL) - { - /* Handle global symbol. */ - struct ppc_elf_link_hash_entry *eh; - - eh = (struct ppc_elf_link_hash_entry *) h; - BFD_ASSERT (eh->elf.def_regular); - linker_section_ptr = eh->linker_section_pointer; - } - else - { - /* Handle local symbol. */ - unsigned long r_symndx = ELF32_R_SYM (rel->r_info); - - BFD_ASSERT (is_ppc_elf (input_bfd)); - BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); - linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; - } - - linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, - rel->r_addend, - lsect); - BFD_ASSERT (linker_section_ptr != NULL); - - /* Offset will always be a multiple of four, so use the bottom bit - as a "written" flag. */ - if ((linker_section_ptr->offset & 1) == 0) - { - bfd_put_32 (lsect->section->owner, - relocation + linker_section_ptr->addend, - lsect->section->contents + linker_section_ptr->offset); - linker_section_ptr->offset += 1; - } - - relocation = (lsect->section->output_section->vma - + lsect->section->output_offset - + linker_section_ptr->offset - 1 - - SYM_VAL (lsect->sym)); - -#ifdef DEBUG - fprintf (stderr, - "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", - lsect->name, (long) relocation, (long) relocation); -#endif - - return relocation; -} - -#define PPC_LO(v) ((v) & 0xffff) -#define PPC_HI(v) (((v) >> 16) & 0xffff) -#define PPC_HA(v) PPC_HI ((v) + 0x8000) - -static void -write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p, - struct bfd_link_info *info) -{ - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - bfd *output_bfd = info->output_bfd; - bfd_vma plt; - - plt = ((ent->plt.offset & ~1) - + plt_sec->output_section->vma - + plt_sec->output_offset); - - if (info->shared) - { - bfd_vma got = 0; - - if (ent->addend >= 32768) - got = (ent->addend - + ent->sec->output_section->vma - + ent->sec->output_offset); - else if (htab->elf.hgot != NULL) - got = SYM_VAL (htab->elf.hgot); - - plt -= got; - - if (plt + 0x8000 < 0x10000) - { - bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); - p += 4; - bfd_put_32 (output_bfd, MTCTR_11, p); - p += 4; - bfd_put_32 (output_bfd, BCTR, p); - p += 4; - bfd_put_32 (output_bfd, NOP, p); - p += 4; - } - else - { - bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); - p += 4; - bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); - p += 4; - bfd_put_32 (output_bfd, MTCTR_11, p); - p += 4; - bfd_put_32 (output_bfd, BCTR, p); - p += 4; - } - } - else - { - bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); - p += 4; - bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); - p += 4; - bfd_put_32 (output_bfd, MTCTR_11, p); - p += 4; - bfd_put_32 (output_bfd, BCTR, p); - p += 4; - } -} - -/* Return true if symbol is defined statically. */ - -static bfd_boolean -is_static_defined (struct elf_link_hash_entry *h) -{ - return ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && h->root.u.def.section != NULL - && h->root.u.def.section->output_section != NULL); -} - -/* If INSN is an opcode that may be used with an @tls operand, return - the transformed insn for TLS optimisation, otherwise return 0. If - REG is non-zero only match an insn with RB or RA equal to REG. */ - -unsigned int -_bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg) -{ - unsigned int rtra; - - if ((insn & (0x3f << 26)) != 31 << 26) - return 0; - - if (reg == 0 || ((insn >> 11) & 0x1f) == reg) - rtra = insn & ((1 << 26) - (1 << 16)); - else if (((insn >> 16) & 0x1f) == reg) - rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5); - else - return 0; - - if ((insn & (0x3ff << 1)) == 266 << 1) - /* add -> addi. */ - insn = 14 << 26; - else if ((insn & (0x1f << 1)) == 23 << 1 - && ((insn & (0x1f << 6)) < 14 << 6 - || ((insn & (0x1f << 6)) >= 16 << 6 - && (insn & (0x1f << 6)) < 24 << 6))) - /* load and store indexed -> dform. */ - insn = (32 | ((insn >> 6) & 0x1f)) << 26; - else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1) - /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ - insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1); - else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1) - /* lwax -> lwa. */ - insn = (58 << 26) | 2; - else - return 0; - insn |= rtra; - return insn; -} - -/* If INSN is an opcode that may be used with an @tprel operand, return - the transformed insn for an undefined weak symbol, ie. with the - thread pointer REG operand removed. Otherwise return 0. */ - -unsigned int -_bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg) -{ - if ((insn & (0x1f << 16)) == reg << 16 - && ((insn & (0x3f << 26)) == 14u << 26 /* addi */ - || (insn & (0x3f << 26)) == 15u << 26 /* addis */ - || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ - || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ - || (insn & (0x3f << 26)) == 36u << 26 /* stw */ - || (insn & (0x3f << 26)) == 38u << 26 /* stb */ - || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ - || (insn & (0x3f << 26)) == 42u << 26 /* lha */ - || (insn & (0x3f << 26)) == 44u << 26 /* sth */ - || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ - || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ - || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ - || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ - || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ - || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ - || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ - && (insn & 3) != 1) - || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ - && ((insn & 3) == 0 || (insn & 3) == 3)))) - { - insn &= ~(0x1f << 16); - } - else if ((insn & (0x1f << 21)) == reg << 21 - && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */ - || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */ - || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */)) - { - insn &= ~(0x1f << 21); - insn |= (insn & (0x1f << 16)) << 5; - if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */) - insn -= 2 >> 26; /* convert to ori,oris */ - } - else - insn = 0; - return insn; -} - -static bfd_boolean -is_insn_ds_form (unsigned int insn) -{ - return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */ - || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */ - || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */ - || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */); -} - -static bfd_boolean -is_insn_dq_form (unsigned int insn) -{ - return (insn & (0x3f << 26)) == 56u << 26; /* lq */ -} - -/* The RELOCATE_SECTION function is called by the ELF backend linker - to handle the relocations for a section. - - The relocs are always passed as Rela structures; if the section - actually uses Rel structures, the r_addend field will always be - zero. - - This function is responsible for adjust the section contents as - necessary, and (if using Rela relocs and generating a - relocatable output file) adjusting the reloc addend as - necessary. - - This function does not have to worry about setting the reloc - address or the reloc symbol index. - - LOCAL_SYMS is a pointer to the swapped in local symbols. - - LOCAL_SECTIONS is an array giving the section in the input file - corresponding to the st_shndx field of each local symbol. - - The global hash table entry for the global symbols can be found - via elf_sym_hashes (input_bfd). - - When generating relocatable output, this function must handle - STB_LOCAL/STT_SECTION symbols specially. The output symbol is - going to be the section symbol corresponding to the output - section, which means that the addend must be adjusted - accordingly. */ - -static bfd_boolean -ppc_elf_relocate_section (bfd *output_bfd, - struct bfd_link_info *info, - bfd *input_bfd, - asection *input_section, - bfd_byte *contents, - Elf_Internal_Rela *relocs, - Elf_Internal_Sym *local_syms, - asection **local_sections) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - struct ppc_elf_link_hash_table *htab; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; - Elf_Internal_Rela outrel; - asection *got2; - bfd_vma *local_got_offsets; - bfd_boolean ret = TRUE; - bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); - bfd_boolean is_vxworks_tls; - -#ifdef DEBUG - _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " - "%ld relocations%s", - input_bfd, input_section, - (long) input_section->reloc_count, - (info->relocatable) ? " (relocatable)" : ""); -#endif - - got2 = bfd_get_section_by_name (input_bfd, ".got2"); - - /* Initialize howto table if not already done. */ - if (!ppc_elf_howto_table[R_PPC_ADDR32]) - ppc_elf_howto_init (); - - htab = ppc_elf_hash_table (info); - local_got_offsets = elf_local_got_offsets (input_bfd); - symtab_hdr = &elf_symtab_hdr (input_bfd); - sym_hashes = elf_sym_hashes (input_bfd); - /* We have to handle relocations in vxworks .tls_vars sections - specially, because the dynamic loader is 'weird'. */ - is_vxworks_tls = (htab->is_vxworks && info->shared - && !strcmp (input_section->output_section->name, - ".tls_vars")); - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - enum elf_ppc_reloc_type r_type; - bfd_vma addend; - bfd_reloc_status_type r; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - const char *sym_name; - reloc_howto_type *howto; - unsigned long r_symndx; - bfd_vma relocation; - bfd_vma branch_bit, from; - bfd_boolean unresolved_reloc; - bfd_boolean warned; - unsigned int tls_type, tls_mask, tls_gd; - struct plt_entry **ifunc; - - r_type = ELF32_R_TYPE (rel->r_info); - sym = NULL; - sec = NULL; - h = NULL; - unresolved_reloc = FALSE; - warned = FALSE; - r_symndx = ELF32_R_SYM (rel->r_info); - - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); - - relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); - } - else - { - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, relocation, - unresolved_reloc, warned); - - sym_name = h->root.root.string; - } - - if (sec != NULL && discarded_section (sec)) - { - /* For relocs against symbols from removed linkonce sections, - or sections discarded by a linker script, we just want the - section contents zeroed. Avoid any special processing. */ - howto = NULL; - if (r_type < R_PPC_max) - howto = ppc_elf_howto_table[r_type]; - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - } - - if (info->relocatable) - { - if (got2 != NULL - && r_type == R_PPC_PLTREL24 - && rel->r_addend != 0) - { - /* R_PPC_PLTREL24 is rather special. If non-zero, the - addend specifies the GOT pointer offset within .got2. */ - rel->r_addend += got2->output_offset; - } - continue; - } - - /* TLS optimizations. Replace instruction sequences and relocs - based on information we collected in tls_optimize. We edit - RELOCS so that --emit-relocs will output something sensible - for the final instruction stream. */ - tls_mask = 0; - tls_gd = 0; - if (h != NULL) - tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; - else if (local_got_offsets != NULL) - { - struct plt_entry **local_plt; - char *lgot_masks; - local_plt - = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info); - lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); - tls_mask = lgot_masks[r_symndx]; - } - - /* Ensure reloc mapping code below stays sane. */ - if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) - || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) - || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) - || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) - || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) - || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) - || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) - || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) - abort (); - switch (r_type) - { - default: - break; - - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - if ((tls_mask & TLS_TLS) != 0 - && (tls_mask & TLS_TPREL) == 0) - { - bfd_vma insn; - - insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); - insn &= 31 << 21; - insn |= 0x3c020000; /* addis 0,2,0 */ - bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); - r_type = R_PPC_TPREL16_HA; - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - } - break; - - case R_PPC_TLS: - if ((tls_mask & TLS_TLS) != 0 - && (tls_mask & TLS_TPREL) == 0) - { - bfd_vma insn; - - insn = bfd_get_32 (output_bfd, contents + rel->r_offset); - insn = _bfd_elf_ppc_at_tls_transform (insn, 2); - if (insn == 0) - abort (); - bfd_put_32 (output_bfd, insn, contents + rel->r_offset); - r_type = R_PPC_TPREL16_LO; - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - - /* Was PPC_TLS which sits on insn boundary, now - PPC_TPREL16_LO which is at low-order half-word. */ - rel->r_offset += d_offset; - } - break; - - case R_PPC_GOT_TLSGD16_HI: - case R_PPC_GOT_TLSGD16_HA: - tls_gd = TLS_TPRELGD; - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) - goto tls_gdld_hi; - break; - - case R_PPC_GOT_TLSLD16_HI: - case R_PPC_GOT_TLSLD16_HA: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) - { - tls_gdld_hi: - if ((tls_mask & tls_gd) != 0) - r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) - + R_PPC_GOT_TPREL16); - else - { - bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); - rel->r_offset -= d_offset; - r_type = R_PPC_NONE; - } - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - } - break; - - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - tls_gd = TLS_TPRELGD; - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) - goto tls_ldgd_opt; - break; - - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) - { - unsigned int insn1, insn2; - bfd_vma offset; - - tls_ldgd_opt: - offset = (bfd_vma) -1; - /* If not using the newer R_PPC_TLSGD/LD to mark - __tls_get_addr calls, we must trust that the call - stays with its arg setup insns, ie. that the next - reloc is the __tls_get_addr call associated with - the current reloc. Edit both insns. */ - if (input_section->has_tls_get_addr_call - && rel + 1 < relend - && branch_reloc_hash_match (input_bfd, rel + 1, - htab->tls_get_addr)) - offset = rel[1].r_offset; - if ((tls_mask & tls_gd) != 0) - { - /* IE */ - insn1 = bfd_get_32 (output_bfd, - contents + rel->r_offset - d_offset); - insn1 &= (1 << 26) - 1; - insn1 |= 32 << 26; /* lwz */ - if (offset != (bfd_vma) -1) - { - rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); - insn2 = 0x7c631214; /* add 3,3,2 */ - bfd_put_32 (output_bfd, insn2, contents + offset); - } - r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) - + R_PPC_GOT_TPREL16); - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - } - else - { - /* LE */ - insn1 = 0x3c620000; /* addis 3,2,0 */ - if (tls_gd == 0) - { - /* Was an LD reloc. */ - for (r_symndx = 0; - r_symndx < symtab_hdr->sh_info; - r_symndx++) - if (local_sections[r_symndx] == sec) - break; - if (r_symndx >= symtab_hdr->sh_info) - r_symndx = STN_UNDEF; - rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; - if (r_symndx != STN_UNDEF) - rel->r_addend -= (local_syms[r_symndx].st_value - + sec->output_offset - + sec->output_section->vma); - } - r_type = R_PPC_TPREL16_HA; - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - if (offset != (bfd_vma) -1) - { - rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); - rel[1].r_offset = offset + d_offset; - rel[1].r_addend = rel->r_addend; - insn2 = 0x38630000; /* addi 3,3,0 */ - bfd_put_32 (output_bfd, insn2, contents + offset); - } - } - bfd_put_32 (output_bfd, insn1, - contents + rel->r_offset - d_offset); - if (tls_gd == 0) - { - /* We changed the symbol on an LD reloc. Start over - in order to get h, sym, sec etc. right. */ - rel--; - continue; - } - } - break; - - case R_PPC_TLSGD: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) - { - unsigned int insn2; - bfd_vma offset = rel->r_offset; - - if ((tls_mask & TLS_TPRELGD) != 0) - { - /* IE */ - r_type = R_PPC_NONE; - insn2 = 0x7c631214; /* add 3,3,2 */ - } - else - { - /* LE */ - r_type = R_PPC_TPREL16_LO; - rel->r_offset += d_offset; - insn2 = 0x38630000; /* addi 3,3,0 */ - } - rel->r_info = ELF32_R_INFO (r_symndx, r_type); - bfd_put_32 (output_bfd, insn2, contents + offset); - /* Zap the reloc on the _tls_get_addr call too. */ - BFD_ASSERT (offset == rel[1].r_offset); - rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); - } - break; - - case R_PPC_TLSLD: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) - { - unsigned int insn2; - - for (r_symndx = 0; - r_symndx < symtab_hdr->sh_info; - r_symndx++) - if (local_sections[r_symndx] == sec) - break; - if (r_symndx >= symtab_hdr->sh_info) - r_symndx = STN_UNDEF; - rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; - if (r_symndx != STN_UNDEF) - rel->r_addend -= (local_syms[r_symndx].st_value - + sec->output_offset - + sec->output_section->vma); - - rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); - rel->r_offset += d_offset; - insn2 = 0x38630000; /* addi 3,3,0 */ - bfd_put_32 (output_bfd, insn2, - contents + rel->r_offset - d_offset); - /* Zap the reloc on the _tls_get_addr call too. */ - BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); - rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); - rel--; - continue; - } - break; - } - - /* Handle other relocations that tweak non-addend part of insn. */ - branch_bit = 0; - switch (r_type) - { - default: - break; - - /* Branch taken prediction relocations. */ - case R_PPC_ADDR14_BRTAKEN: - case R_PPC_REL14_BRTAKEN: - branch_bit = BRANCH_PREDICT_BIT; - /* Fall thru */ - - /* Branch not taken prediction relocations. */ - case R_PPC_ADDR14_BRNTAKEN: - case R_PPC_REL14_BRNTAKEN: - { - bfd_vma insn; - - insn = bfd_get_32 (output_bfd, contents + rel->r_offset); - insn &= ~BRANCH_PREDICT_BIT; - insn |= branch_bit; - - from = (rel->r_offset - + input_section->output_offset - + input_section->output_section->vma); - - /* Invert 'y' bit if not the default. */ - if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) - insn ^= BRANCH_PREDICT_BIT; - - bfd_put_32 (output_bfd, insn, contents + rel->r_offset); - break; - } - } - - ifunc = NULL; - if (!htab->is_vxworks) - { - struct plt_entry *ent; - - if (h != NULL) - { - if (h->type == STT_GNU_IFUNC) - ifunc = &h->plt.plist; - } - else if (local_got_offsets != NULL - && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) - { - struct plt_entry **local_plt; - - local_plt = (struct plt_entry **) (local_got_offsets - + symtab_hdr->sh_info); - ifunc = local_plt + r_symndx; - } - - ent = NULL; - if (ifunc != NULL - && (!info->shared - || is_branch_reloc (r_type))) - { - addend = 0; - if (r_type == R_PPC_PLTREL24 && info->shared) - addend = rel->r_addend; - ent = find_plt_ent (ifunc, got2, addend); - } - if (ent != NULL) - { - if (h == NULL && (ent->plt.offset & 1) == 0) - { - Elf_Internal_Rela rela; - bfd_byte *loc; - - rela.r_offset = (htab->iplt->output_section->vma - + htab->iplt->output_offset - + ent->plt.offset); - rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); - rela.r_addend = relocation; - loc = htab->reliplt->contents; - loc += (htab->reliplt->reloc_count++ - * sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - - ent->plt.offset |= 1; - } - if (h == NULL && (ent->glink_offset & 1) == 0) - { - unsigned char *p = ((unsigned char *) htab->glink->contents - + ent->glink_offset); - write_glink_stub (ent, htab->iplt, p, info); - ent->glink_offset |= 1; - } - - unresolved_reloc = FALSE; - if (htab->plt_type == PLT_NEW - || !htab->elf.dynamic_sections_created - || h == NULL) - relocation = (htab->glink->output_section->vma - + htab->glink->output_offset - + (ent->glink_offset & ~1)); - else - relocation = (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset); - } - } - - addend = rel->r_addend; - tls_type = 0; - howto = NULL; - if (r_type < R_PPC_max) - howto = ppc_elf_howto_table[r_type]; - switch (r_type) - { - default: - info->callbacks->einfo - (_("%P: %B: unknown relocation type %d for symbol %s\n"), - input_bfd, (int) r_type, sym_name); - - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - continue; - - case R_PPC_NONE: - case R_PPC_TLS: - case R_PPC_TLSGD: - case R_PPC_TLSLD: - case R_PPC_EMB_MRKREF: - case R_PPC_GNU_VTINHERIT: - case R_PPC_GNU_VTENTRY: - continue; - - /* GOT16 relocations. Like an ADDR16 using the symbol's - address in the GOT as relocation value instead of the - symbol's value itself. Also, create a GOT entry for the - symbol and put the symbol value there. */ - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - case R_PPC_GOT_TLSGD16_HI: - case R_PPC_GOT_TLSGD16_HA: - tls_type = TLS_TLS | TLS_GD; - goto dogot; - - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - case R_PPC_GOT_TLSLD16_HI: - case R_PPC_GOT_TLSLD16_HA: - tls_type = TLS_TLS | TLS_LD; - goto dogot; - - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - case R_PPC_GOT_TPREL16_HI: - case R_PPC_GOT_TPREL16_HA: - tls_type = TLS_TLS | TLS_TPREL; - goto dogot; - - case R_PPC_GOT_DTPREL16: - case R_PPC_GOT_DTPREL16_LO: - case R_PPC_GOT_DTPREL16_HI: - case R_PPC_GOT_DTPREL16_HA: - tls_type = TLS_TLS | TLS_DTPREL; - goto dogot; - - case R_PPC_GOT16: - case R_PPC_GOT16_LO: - case R_PPC_GOT16_HI: - case R_PPC_GOT16_HA: - tls_mask = 0; - dogot: - { - /* Relocation is to the entry for this symbol in the global - offset table. */ - bfd_vma off; - bfd_vma *offp; - unsigned long indx; - - if (htab->got == NULL) - abort (); - - indx = 0; - if (tls_type == (TLS_TLS | TLS_LD) - && (h == NULL - || !h->def_dynamic)) - offp = &htab->tlsld_got.offset; - else if (h != NULL) - { - bfd_boolean dyn; - dyn = htab->elf.dynamic_sections_created; - if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) - || (info->shared - && SYMBOL_REFERENCES_LOCAL (info, h))) - /* This is actually a static link, or it is a - -Bsymbolic link and the symbol is defined - locally, or the symbol was forced to be local - because of a version file. */ - ; - else - { - BFD_ASSERT (h->dynindx != -1); - indx = h->dynindx; - unresolved_reloc = FALSE; - } - offp = &h->got.offset; - } - else - { - if (local_got_offsets == NULL) - abort (); - offp = &local_got_offsets[r_symndx]; - } - - /* The offset must always be a multiple of 4. We use the - least significant bit to record whether we have already - processed this entry. */ - off = *offp; - if ((off & 1) != 0) - off &= ~1; - else - { - unsigned int tls_m = (tls_mask - & (TLS_LD | TLS_GD | TLS_DTPREL - | TLS_TPREL | TLS_TPRELGD)); - - if (offp == &htab->tlsld_got.offset) - tls_m = TLS_LD; - else if (h == NULL - || !h->def_dynamic) - tls_m &= ~TLS_LD; - - /* We might have multiple got entries for this sym. - Initialize them all. */ - do - { - int tls_ty = 0; - - if ((tls_m & TLS_LD) != 0) - { - tls_ty = TLS_TLS | TLS_LD; - tls_m &= ~TLS_LD; - } - else if ((tls_m & TLS_GD) != 0) - { - tls_ty = TLS_TLS | TLS_GD; - tls_m &= ~TLS_GD; - } - else if ((tls_m & TLS_DTPREL) != 0) - { - tls_ty = TLS_TLS | TLS_DTPREL; - tls_m &= ~TLS_DTPREL; - } - else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) - { - tls_ty = TLS_TLS | TLS_TPREL; - tls_m = 0; - } - - /* Generate relocs for the dynamic linker. */ - if ((info->shared || indx != 0) - && (offp == &htab->tlsld_got.offset - || h == NULL - || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - || h->root.type != bfd_link_hash_undefweak)) - { - asection *rsec = htab->relgot; - bfd_byte * loc; - - if (ifunc != NULL) - rsec = htab->reliplt; - outrel.r_offset = (htab->got->output_section->vma - + htab->got->output_offset - + off); - outrel.r_addend = 0; - if (tls_ty & (TLS_LD | TLS_GD)) - { - outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); - if (tls_ty == (TLS_TLS | TLS_GD)) - { - loc = rsec->contents; - loc += (rsec->reloc_count++ - * sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, - &outrel, loc); - outrel.r_offset += 4; - outrel.r_info - = ELF32_R_INFO (indx, R_PPC_DTPREL32); - } - } - else if (tls_ty == (TLS_TLS | TLS_DTPREL)) - outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); - else if (tls_ty == (TLS_TLS | TLS_TPREL)) - outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); - else if (indx != 0) - outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); - else if (ifunc != NULL) - outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); - else - outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); - if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) - { - outrel.r_addend += relocation; - if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) - outrel.r_addend -= htab->elf.tls_sec->vma; - } - loc = rsec->contents; - loc += (rsec->reloc_count++ - * sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - - /* Init the .got section contents if we're not - emitting a reloc. */ - else - { - bfd_vma value = relocation; - - if (tls_ty == (TLS_TLS | TLS_LD)) - value = 1; - else if (tls_ty != 0) - { - value -= htab->elf.tls_sec->vma + DTP_OFFSET; - if (tls_ty == (TLS_TLS | TLS_TPREL)) - value += DTP_OFFSET - TP_OFFSET; - - if (tls_ty == (TLS_TLS | TLS_GD)) - { - bfd_put_32 (output_bfd, value, - htab->got->contents + off + 4); - value = 1; - } - } - bfd_put_32 (output_bfd, value, - htab->got->contents + off); - } - - off += 4; - if (tls_ty & (TLS_LD | TLS_GD)) - off += 4; - } - while (tls_m != 0); - - off = *offp; - *offp = off | 1; - } - - if (off >= (bfd_vma) -2) - abort (); - - if ((tls_type & TLS_TLS) != 0) - { - if (tls_type != (TLS_TLS | TLS_LD)) - { - if ((tls_mask & TLS_LD) != 0 - && !(h == NULL - || !h->def_dynamic)) - off += 8; - if (tls_type != (TLS_TLS | TLS_GD)) - { - if ((tls_mask & TLS_GD) != 0) - off += 8; - if (tls_type != (TLS_TLS | TLS_DTPREL)) - { - if ((tls_mask & TLS_DTPREL) != 0) - off += 4; - } - } - } - } - - relocation = (htab->got->output_section->vma - + htab->got->output_offset - + off - - SYM_VAL (htab->elf.hgot)); - - /* Addends on got relocations don't make much sense. - x+off@got is actually x@got+off, and since the got is - generated by a hash table traversal, the value in the - got at entry m+n bears little relation to the entry m. */ - if (addend != 0) - info->callbacks->einfo - (_("%P: %H: non-zero addend on %s reloc against `%s'\n"), - input_bfd, input_section, rel->r_offset, - howto->name, - sym_name); - } - break; - - /* Relocations that need no special processing. */ - case R_PPC_LOCAL24PC: - /* It makes no sense to point a local relocation - at a symbol not in this object. */ - if (unresolved_reloc) - { - if (! (*info->callbacks->undefined_symbol) (info, - h->root.root.string, - input_bfd, - input_section, - rel->r_offset, - TRUE)) - return FALSE; - continue; - } - break; - - case R_PPC_DTPREL16: - case R_PPC_DTPREL16_LO: - case R_PPC_DTPREL16_HI: - case R_PPC_DTPREL16_HA: - addend -= htab->elf.tls_sec->vma + DTP_OFFSET; - break; - - /* Relocations that may need to be propagated if this is a shared - object. */ - case R_PPC_TPREL16: - case R_PPC_TPREL16_LO: - case R_PPC_TPREL16_HI: - case R_PPC_TPREL16_HA: - if (h != NULL - && h->root.type == bfd_link_hash_undefweak - && h->dynindx == -1) - { - /* Make this relocation against an undefined weak symbol - resolve to zero. This is really just a tweak, since - code using weak externs ought to check that they are - defined before using them. */ - bfd_byte *p = contents + rel->r_offset - d_offset; - unsigned int insn = bfd_get_32 (output_bfd, p); - insn = _bfd_elf_ppc_at_tprel_transform (insn, 2); - if (insn != 0) - bfd_put_32 (output_bfd, insn, p); - break; - } - addend -= htab->elf.tls_sec->vma + TP_OFFSET; - /* The TPREL16 relocs shouldn't really be used in shared - libs as they will result in DT_TEXTREL being set, but - support them anyway. */ - goto dodyn; - - case R_PPC_TPREL32: - addend -= htab->elf.tls_sec->vma + TP_OFFSET; - goto dodyn; - - case R_PPC_DTPREL32: - addend -= htab->elf.tls_sec->vma + DTP_OFFSET; - goto dodyn; - - case R_PPC_DTPMOD32: - relocation = 1; - addend = 0; - goto dodyn; - - case R_PPC_REL16: - case R_PPC_REL16_LO: - case R_PPC_REL16_HI: - case R_PPC_REL16_HA: - break; - - case R_PPC_REL32: - if (h == NULL || h == htab->elf.hgot) - break; - /* fall through */ - - case R_PPC_ADDR32: - case R_PPC_ADDR16: - case R_PPC_ADDR16_LO: - case R_PPC_ADDR16_HI: - case R_PPC_ADDR16_HA: - case R_PPC_UADDR32: - case R_PPC_UADDR16: - goto dodyn; - - case R_PPC_VLE_REL8: - case R_PPC_VLE_REL15: - case R_PPC_VLE_REL24: - case R_PPC_REL24: - case R_PPC_REL14: - case R_PPC_REL14_BRTAKEN: - case R_PPC_REL14_BRNTAKEN: - /* If these relocations are not to a named symbol, they can be - handled right here, no need to bother the dynamic linker. */ - if (SYMBOL_CALLS_LOCAL (info, h) - || h == htab->elf.hgot) - break; - /* fall through */ - - case R_PPC_ADDR24: - case R_PPC_ADDR14: - case R_PPC_ADDR14_BRTAKEN: - case R_PPC_ADDR14_BRNTAKEN: - if (h != NULL && !info->shared) - break; - /* fall through */ - - dodyn: - if ((input_section->flags & SEC_ALLOC) == 0 - || is_vxworks_tls) - break; - - if ((info->shared - && !(h != NULL - && ((h->root.type == bfd_link_hash_undefined - && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN - || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) - || (h->root.type == bfd_link_hash_undefweak - && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) - && (must_be_dyn_reloc (info, r_type) - || !SYMBOL_CALLS_LOCAL (info, h))) - || (ELIMINATE_COPY_RELOCS - && !info->shared - && h != NULL - && h->dynindx != -1 - && !h->non_got_ref - && !h->def_regular)) - { - int skip; - bfd_byte *loc; - asection *sreloc; -#ifdef DEBUG - fprintf (stderr, "ppc_elf_relocate_section needs to " - "create relocation for %s\n", - (h && h->root.root.string - ? h->root.root.string : "<unknown>")); -#endif - - /* When generating a shared object, these relocations - are copied into the output file to be resolved at run - time. */ - sreloc = elf_section_data (input_section)->sreloc; - if (ifunc) - sreloc = htab->reliplt; - if (sreloc == NULL) - return FALSE; - - skip = 0; - outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, - input_section, - rel->r_offset); - if (outrel.r_offset == (bfd_vma) -1 - || outrel.r_offset == (bfd_vma) -2) - skip = (int) outrel.r_offset; - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - - if (skip) - memset (&outrel, 0, sizeof outrel); - else if ((h != NULL - && (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak)) - || !SYMBOL_REFERENCES_LOCAL (info, h)) - { - BFD_ASSERT (h->dynindx != -1); - unresolved_reloc = FALSE; - outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); - outrel.r_addend = rel->r_addend; - } - else - { - outrel.r_addend = relocation + rel->r_addend; - - if (r_type != R_PPC_ADDR32) - { - long indx = 0; - - if (ifunc != NULL) - { - /* If we get here when building a static - executable, then the libc startup function - responsible for applying indirect function - relocations is going to complain about - the reloc type. - If we get here when building a dynamic - executable, it will be because we have - a text relocation. The dynamic loader - will set the text segment writable and - non-executable to apply text relocations. - So we'll segfault when trying to run the - indirection function to resolve the reloc. */ - info->callbacks->einfo - (_("%P: %H: relocation %s for indirect " - "function %s unsupported\n"), - input_bfd, input_section, rel->r_offset, - howto->name, - sym_name); - ret = FALSE; - } - else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) - ; - else if (sec == NULL || sec->owner == NULL) - { - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - } - else - { - asection *osec; - - /* We are turning this relocation into one - against a section symbol. It would be - proper to subtract the symbol's value, - osec->vma, from the emitted reloc addend, - but ld.so expects buggy relocs. - FIXME: Why not always use a zero index? */ - osec = sec->output_section; - indx = elf_section_data (osec)->dynindx; - if (indx == 0) - { - osec = htab->elf.text_index_section; - indx = elf_section_data (osec)->dynindx; - } - BFD_ASSERT (indx != 0); -#ifdef DEBUG - if (indx == 0) - printf ("indx=%ld section=%s flags=%08x name=%s\n", - indx, osec->name, osec->flags, - h->root.root.string); -#endif - } - - outrel.r_info = ELF32_R_INFO (indx, r_type); - } - else if (ifunc != NULL) - outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); - else - outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); - } - - loc = sreloc->contents; - loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - - if (skip == -1) - continue; - - /* This reloc will be computed at runtime. We clear the memory - so that it contains predictable value. */ - if (! skip - && ((input_section->flags & SEC_ALLOC) != 0 - || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) - { - relocation = howto->pc_relative ? outrel.r_offset : 0; - addend = 0; - break; - } - } - break; - - case R_PPC_RELAX_PLT: - case R_PPC_RELAX_PLTREL24: - if (h != NULL) - { - struct plt_entry *ent; - bfd_vma got2_addend = 0; - - if (r_type == R_PPC_RELAX_PLTREL24) - { - if (info->shared) - got2_addend = addend; - addend = 0; - } - ent = find_plt_ent (&h->plt.plist, got2, got2_addend); - if (htab->plt_type == PLT_NEW) - relocation = (htab->glink->output_section->vma - + htab->glink->output_offset - + ent->glink_offset); - else - relocation = (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset); - } - /* Fall thru */ - - case R_PPC_RELAX: - if (info->shared) - relocation -= (input_section->output_section->vma - + input_section->output_offset - + rel->r_offset - 4); - - { - unsigned long t0; - unsigned long t1; - - t0 = bfd_get_32 (output_bfd, contents + rel->r_offset); - t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4); - - /* We're clearing the bits for R_PPC_ADDR16_HA - and R_PPC_ADDR16_LO here. */ - t0 &= ~0xffff; - t1 &= ~0xffff; - - /* t0 is HA, t1 is LO */ - relocation += addend; - t0 |= ((relocation + 0x8000) >> 16) & 0xffff; - t1 |= relocation & 0xffff; - - bfd_put_32 (output_bfd, t0, contents + rel->r_offset); - bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4); - - /* Rewrite the reloc and convert one of the trailing nop - relocs to describe this relocation. */ - BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); - /* The relocs are at the bottom 2 bytes */ - rel[0].r_offset += 2; - memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); - rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); - rel[1].r_offset += 4; - rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); - rel++; - } - continue; - - /* Indirect .sdata relocation. */ - case R_PPC_EMB_SDAI16: - BFD_ASSERT (htab->sdata[0].section != NULL); - if (!is_static_defined (htab->sdata[0].sym)) - { - unresolved_reloc = TRUE; - break; - } - relocation - = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], - h, relocation, rel); - addend = 0; - break; - - /* Indirect .sdata2 relocation. */ - case R_PPC_EMB_SDA2I16: - BFD_ASSERT (htab->sdata[1].section != NULL); - if (!is_static_defined (htab->sdata[1].sym)) - { - unresolved_reloc = TRUE; - break; - } - relocation - = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], - h, relocation, rel); - addend = 0; - break; - - /* Handle the TOC16 reloc. We want to use the offset within the .got - section, not the actual VMA. This is appropriate when generating - an embedded ELF object, for which the .got section acts like the - AIX .toc section. */ - case R_PPC_TOC16: /* phony GOT16 relocations */ - if (sec == NULL || sec->output_section == NULL) - { - unresolved_reloc = TRUE; - break; - } - BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec), - ".got") == 0 - || strcmp (bfd_get_section_name (sec->owner, sec), - ".cgot") == 0); - - addend -= sec->output_section->vma + sec->output_offset + 0x8000; - break; - - case R_PPC_PLTREL24: - if (h != NULL && ifunc == NULL) - { - struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2, - info->shared ? addend : 0); - if (ent == NULL - || htab->plt == NULL) - { - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - } - else - { - /* Relocation is to the entry for this symbol in the - procedure linkage table. */ - unresolved_reloc = FALSE; - if (htab->plt_type == PLT_NEW) - relocation = (htab->glink->output_section->vma - + htab->glink->output_offset - + ent->glink_offset); - else - relocation = (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset); - } - } - - /* R_PPC_PLTREL24 is rather special. If non-zero, the - addend specifies the GOT pointer offset within .got2. - Don't apply it to the relocation field. */ - addend = 0; - break; - - /* Relocate against _SDA_BASE_. */ - case R_PPC_SDAREL16: - { - const char *name; - struct elf_link_hash_entry *sda = htab->sdata[0].sym; - - if (sec == NULL - || sec->output_section == NULL - || !is_static_defined (sda)) - { - unresolved_reloc = TRUE; - break; - } - addend -= SYM_VAL (sda); - - name = bfd_get_section_name (output_bfd, sec->output_section); - if (! ((CONST_STRNEQ (name, ".sdata") - && (name[6] == 0 || name[6] == '.')) - || (CONST_STRNEQ (name, ".sbss") - && (name[5] == 0 || name[5] == '.')))) - { - info->callbacks->einfo - (_("%P: %B: the target (%s) of a %s relocation is " - "in the wrong output section (%s)\n"), - input_bfd, - sym_name, - howto->name, - name); - } - } - break; - - /* Relocate against _SDA2_BASE_. */ - case R_PPC_EMB_SDA2REL: - { - const char *name; - struct elf_link_hash_entry *sda = htab->sdata[1].sym; - - if (sec == NULL - || sec->output_section == NULL - || !is_static_defined (sda)) - { - unresolved_reloc = TRUE; - break; - } - addend -= SYM_VAL (sda); - - name = bfd_get_section_name (output_bfd, sec->output_section); - if (! (CONST_STRNEQ (name, ".sdata2") - || CONST_STRNEQ (name, ".sbss2"))) - { - info->callbacks->einfo - (_("%P: %B: the target (%s) of a %s relocation is " - "in the wrong output section (%s)\n"), - input_bfd, - sym_name, - howto->name, - name); - } - } - break; - - case R_PPC_VLE_LO16A: - relocation = (relocation + addend) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - relocation, split16a_type); - continue; - - case R_PPC_VLE_LO16D: - relocation = (relocation + addend) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - relocation, split16d_type); - continue; - - case R_PPC_VLE_HI16A: - relocation = ((relocation + addend) >> 16) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - relocation, split16a_type); - continue; - - case R_PPC_VLE_HI16D: - relocation = ((relocation + addend) >> 16) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - relocation, split16d_type); - continue; - - case R_PPC_VLE_HA16A: - { - bfd_vma value = relocation + addend; - value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16a_type); - } - continue; - - case R_PPC_VLE_HA16D: - { - bfd_vma value = relocation + addend; - value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16d_type); - } - continue; - - /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ - case R_PPC_EMB_SDA21: - case R_PPC_VLE_SDA21: - case R_PPC_EMB_RELSDA: - case R_PPC_VLE_SDA21_LO: - { - const char *name; - int reg; - struct elf_link_hash_entry *sda = NULL; - - if (sec == NULL || sec->output_section == NULL) - { - unresolved_reloc = TRUE; - break; - } - - name = bfd_get_section_name (output_bfd, sec->output_section); - if (((CONST_STRNEQ (name, ".sdata") - && (name[6] == 0 || name[6] == '.')) - || (CONST_STRNEQ (name, ".sbss") - && (name[5] == 0 || name[5] == '.')))) - { - reg = 13; - sda = htab->sdata[0].sym; - } - else if (CONST_STRNEQ (name, ".sdata2") - || CONST_STRNEQ (name, ".sbss2")) - { - reg = 2; - sda = htab->sdata[1].sym; - } - else if (strcmp (name, ".PPC.EMB.sdata0") == 0 - || strcmp (name, ".PPC.EMB.sbss0") == 0) - { - reg = 0; - } - else - { - info->callbacks->einfo - (_("%P: %B: the target (%s) of a %s relocation is " - "in the wrong output section (%s)\n"), - input_bfd, - sym_name, - howto->name, - name); - - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - continue; - } - - if (sda != NULL) - { - if (!is_static_defined (sda)) - { - unresolved_reloc = TRUE; - break; - } - addend -= SYM_VAL (sda); - } - - if (reg == 0 - && (r_type == R_PPC_VLE_SDA21 - || r_type == R_PPC_VLE_SDA21_LO)) - { - /* Use the split20 format. */ - bfd_vma insn, bits12to15, bits21to31; - bfd_vma value = (relocation + rel->r_offset) & 0xffff; - /* Propagate sign bit, if necessary. */ - insn = (value & 0x8000) ? 0x70107800 : 0x70000000; - bits12to15 = value & 0x700; - bits21to31 = value & 0x7ff; - insn |= bits12to15; - insn |= bits21to31; - bfd_put_32 (output_bfd, insn, contents + rel->r_offset); - continue; - } - else if (r_type == R_PPC_EMB_SDA21 - || r_type == R_PPC_VLE_SDA21 - || r_type == R_PPC_VLE_SDA21_LO) - { - bfd_vma insn; /* Fill in register field. */ - - insn = bfd_get_32 (output_bfd, contents + rel->r_offset); - insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); - bfd_put_32 (output_bfd, insn, contents + rel->r_offset); - } - } - break; - - case R_PPC_VLE_SDAREL_LO16A: - case R_PPC_VLE_SDAREL_LO16D: - case R_PPC_VLE_SDAREL_HI16A: - case R_PPC_VLE_SDAREL_HI16D: - case R_PPC_VLE_SDAREL_HA16A: - case R_PPC_VLE_SDAREL_HA16D: - { - bfd_vma value; - const char *name; - //int reg; - struct elf_link_hash_entry *sda = NULL; - - if (sec == NULL || sec->output_section == NULL) - { - unresolved_reloc = TRUE; - break; - } - - name = bfd_get_section_name (output_bfd, sec->output_section); - if (((CONST_STRNEQ (name, ".sdata") - && (name[6] == 0 || name[6] == '.')) - || (CONST_STRNEQ (name, ".sbss") - && (name[5] == 0 || name[5] == '.')))) - { - //reg = 13; - sda = htab->sdata[0].sym; - } - else if (CONST_STRNEQ (name, ".sdata2") - || CONST_STRNEQ (name, ".sbss2")) - { - //reg = 2; - sda = htab->sdata[1].sym; - } - else - { - (*_bfd_error_handler) - (_("%B: the target (%s) of a %s relocation is " - "in the wrong output section (%s)"), - input_bfd, - sym_name, - howto->name, - name); - - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - continue; - } - - if (sda != NULL) - { - if (!is_static_defined (sda)) - { - unresolved_reloc = TRUE; - break; - } - } - - value = sda->root.u.def.section->output_section->vma - + sda->root.u.def.section->output_offset; - - if (r_type == R_PPC_VLE_SDAREL_LO16A) - { - value = (value + addend) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16a_type); - } - else if (r_type == R_PPC_VLE_SDAREL_LO16D) - { - value = (value + addend) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16d_type); - } - else if (r_type == R_PPC_VLE_SDAREL_HI16A) - { - value = ((value + addend) >> 16) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16a_type); - } - else if (r_type == R_PPC_VLE_SDAREL_HI16D) - { - value = ((value + addend) >> 16) & 0xffff; - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16d_type); - } - else if (r_type == R_PPC_VLE_SDAREL_HA16A) - { - value += addend; - value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16a_type); - } - else if (r_type == R_PPC_VLE_SDAREL_HA16D) - { - value += addend; - value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); - ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, - value, split16d_type); - } - } - continue; - - /* Relocate against the beginning of the section. */ - case R_PPC_SECTOFF: - case R_PPC_SECTOFF_LO: - case R_PPC_SECTOFF_HI: - case R_PPC_SECTOFF_HA: - if (sec == NULL || sec->output_section == NULL) - { - unresolved_reloc = TRUE; - break; - } - addend -= sec->output_section->vma; - break; - - /* Negative relocations. */ - case R_PPC_EMB_NADDR32: - case R_PPC_EMB_NADDR16: - case R_PPC_EMB_NADDR16_LO: - case R_PPC_EMB_NADDR16_HI: - case R_PPC_EMB_NADDR16_HA: - addend -= 2 * relocation; - break; - - case R_PPC_COPY: - case R_PPC_GLOB_DAT: - case R_PPC_JMP_SLOT: - case R_PPC_RELATIVE: - case R_PPC_IRELATIVE: - case R_PPC_PLT32: - case R_PPC_PLTREL32: - case R_PPC_PLT16_LO: - case R_PPC_PLT16_HI: - case R_PPC_PLT16_HA: - case R_PPC_ADDR30: - case R_PPC_EMB_RELSEC16: - case R_PPC_EMB_RELST_LO: - case R_PPC_EMB_RELST_HI: - case R_PPC_EMB_RELST_HA: - case R_PPC_EMB_BIT_FLD: - info->callbacks->einfo - (_("%P: %B: relocation %s is not yet supported for symbol %s\n"), - input_bfd, - howto->name, - sym_name); - - bfd_set_error (bfd_error_invalid_operation); - ret = FALSE; - continue; - } - - /* Do any further special processing. */ - switch (r_type) - { - default: - break; - - case R_PPC_ADDR16_HA: - case R_PPC_REL16_HA: - case R_PPC_SECTOFF_HA: - case R_PPC_TPREL16_HA: - case R_PPC_DTPREL16_HA: - case R_PPC_EMB_NADDR16_HA: - case R_PPC_EMB_RELST_HA: - /* It's just possible that this symbol is a weak symbol - that's not actually defined anywhere. In that case, - 'sec' would be NULL, and we should leave the symbol - alone (it will be set to zero elsewhere in the link). */ - if (sec == NULL) - break; - /* Fall thru */ - - case R_PPC_PLT16_HA: - case R_PPC_GOT16_HA: - case R_PPC_GOT_TLSGD16_HA: - case R_PPC_GOT_TLSLD16_HA: - case R_PPC_GOT_TPREL16_HA: - case R_PPC_GOT_DTPREL16_HA: - /* Add 0x10000 if sign bit in 0:15 is set. - Bits 0:15 are not used. */ - addend += 0x8000; - break; - - case R_PPC_ADDR16: - case R_PPC_ADDR16_LO: - case R_PPC_GOT16: - case R_PPC_GOT16_LO: - case R_PPC_SDAREL16: - case R_PPC_SECTOFF: - case R_PPC_SECTOFF_LO: - case R_PPC_DTPREL16: - case R_PPC_DTPREL16_LO: - case R_PPC_TPREL16: - case R_PPC_TPREL16_LO: - case R_PPC_GOT_TLSGD16: - case R_PPC_GOT_TLSGD16_LO: - case R_PPC_GOT_TLSLD16: - case R_PPC_GOT_TLSLD16_LO: - case R_PPC_GOT_DTPREL16: - case R_PPC_GOT_DTPREL16_LO: - case R_PPC_GOT_TPREL16: - case R_PPC_GOT_TPREL16_LO: - { - /* The 32-bit ABI lacks proper relocations to deal with - certain 64-bit instructions. Prevent damage to bits - that make up part of the insn opcode. */ - unsigned int insn, mask, lobit; - - insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); - mask = 0; - if (is_insn_ds_form (insn)) - mask = 3; - else if (is_insn_dq_form (insn)) - mask = 15; - else - break; - lobit = mask & (relocation + addend); - if (lobit != 0) - { - addend -= lobit; - info->callbacks->einfo - (_("%P: %H: error: %s against `%s' not a multiple of %u\n"), - input_bfd, input_section, rel->r_offset, - howto->name, sym_name, mask + 1); - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - } - addend += insn & mask; - } - break; - } - -#ifdef DEBUG - fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " - "offset = %ld, addend = %ld\n", - howto->name, - (int) r_type, - sym_name, - r_symndx, - (long) rel->r_offset, - (long) addend); -#endif - - if (unresolved_reloc - && !((input_section->flags & SEC_DEBUGGING) != 0 - && h->def_dynamic) - && _bfd_elf_section_offset (output_bfd, info, input_section, - rel->r_offset) != (bfd_vma) -1) - { - info->callbacks->einfo - (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"), - input_bfd, input_section, rel->r_offset, - howto->name, - sym_name); - ret = FALSE; - } - - r = _bfd_final_link_relocate (howto, - input_bfd, - input_section, - contents, - rel->r_offset, - relocation, - addend); - - if (r != bfd_reloc_ok) - { - if (r == bfd_reloc_overflow) - { - if (warned) - continue; - if (h != NULL - && h->root.type == bfd_link_hash_undefweak - && howto->pc_relative) - { - /* Assume this is a call protected by other code that - detect the symbol is undefined. If this is the case, - we can safely ignore the overflow. If not, the - program is hosed anyway, and a little warning isn't - going to help. */ - - continue; - } - - if (! (*info->callbacks->reloc_overflow) (info, - (h ? &h->root : NULL), - sym_name, - howto->name, - rel->r_addend, - input_bfd, - input_section, - rel->r_offset)) - return FALSE; - } - else - { - info->callbacks->einfo - (_("%P: %H: %s reloc against `%s': error %d\n"), - input_bfd, input_section, rel->r_offset, - howto->name, sym_name, (int) r); - ret = FALSE; - } - } - } - -#ifdef DEBUG - fprintf (stderr, "\n"); -#endif - - return ret; -} - -/* Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ - -static bfd_boolean -ppc_elf_finish_dynamic_symbol (bfd *output_bfd, - struct bfd_link_info *info, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - struct ppc_elf_link_hash_table *htab; - struct plt_entry *ent; - bfd_boolean doneone; - -#ifdef DEBUG - fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", - h->root.root.string); -#endif - - htab = ppc_elf_hash_table (info); - BFD_ASSERT (htab->elf.dynobj != NULL); - - doneone = FALSE; - for (ent = h->plt.plist; ent != NULL; ent = ent->next) - if (ent->plt.offset != (bfd_vma) -1) - { - if (!doneone) - { - Elf_Internal_Rela rela; - bfd_byte *loc; - bfd_vma reloc_index; - - if (htab->plt_type == PLT_NEW - || !htab->elf.dynamic_sections_created - || h->dynindx == -1) - reloc_index = ent->plt.offset / 4; - else - { - reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) - / htab->plt_slot_size); - if (reloc_index > PLT_NUM_SINGLE_ENTRIES - && htab->plt_type == PLT_OLD) - reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; - } - - /* This symbol has an entry in the procedure linkage table. - Set it up. */ - if (htab->plt_type == PLT_VXWORKS - && htab->elf.dynamic_sections_created - && h->dynindx != -1) - { - bfd_vma got_offset; - const bfd_vma *plt_entry; - - /* The first three entries in .got.plt are reserved. */ - got_offset = (reloc_index + 3) * 4; - - /* Use the right PLT. */ - plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry - : ppc_elf_vxworks_plt_entry; - - /* Fill in the .plt on VxWorks. */ - if (info->shared) - { - bfd_put_32 (output_bfd, - plt_entry[0] | PPC_HA (got_offset), - htab->plt->contents + ent->plt.offset + 0); - bfd_put_32 (output_bfd, - plt_entry[1] | PPC_LO (got_offset), - htab->plt->contents + ent->plt.offset + 4); - } - else - { - bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); - - bfd_put_32 (output_bfd, - plt_entry[0] | PPC_HA (got_loc), - htab->plt->contents + ent->plt.offset + 0); - bfd_put_32 (output_bfd, - plt_entry[1] | PPC_LO (got_loc), - htab->plt->contents + ent->plt.offset + 4); - } - - bfd_put_32 (output_bfd, plt_entry[2], - htab->plt->contents + ent->plt.offset + 8); - bfd_put_32 (output_bfd, plt_entry[3], - htab->plt->contents + ent->plt.offset + 12); - - /* This instruction is an immediate load. The value loaded is - the byte offset of the R_PPC_JMP_SLOT relocation from the - start of the .rela.plt section. The value is stored in the - low-order 16 bits of the load instruction. */ - /* NOTE: It appears that this is now an index rather than a - prescaled offset. */ - bfd_put_32 (output_bfd, - plt_entry[4] | reloc_index, - htab->plt->contents + ent->plt.offset + 16); - /* This instruction is a PC-relative branch whose target is - the start of the PLT section. The address of this branch - instruction is 20 bytes beyond the start of this PLT entry. - The address is encoded in bits 6-29, inclusive. The value - stored is right-shifted by two bits, permitting a 26-bit - offset. */ - bfd_put_32 (output_bfd, - (plt_entry[5] - | (-(ent->plt.offset + 20) & 0x03fffffc)), - htab->plt->contents + ent->plt.offset + 20); - bfd_put_32 (output_bfd, plt_entry[6], - htab->plt->contents + ent->plt.offset + 24); - bfd_put_32 (output_bfd, plt_entry[7], - htab->plt->contents + ent->plt.offset + 28); - - /* Fill in the GOT entry corresponding to this PLT slot with - the address immediately after the "bctr" instruction - in this PLT entry. */ - bfd_put_32 (output_bfd, (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset + 16), - htab->sgotplt->contents + got_offset); - - if (!info->shared) - { - /* Fill in a couple of entries in .rela.plt.unloaded. */ - loc = htab->srelplt2->contents - + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index - * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) - * sizeof (Elf32_External_Rela)); - - /* Provide the @ha relocation for the first instruction. */ - rela.r_offset = (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset + 2); - rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, - R_PPC_ADDR16_HA); - rela.r_addend = got_offset; - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - loc += sizeof (Elf32_External_Rela); - - /* Provide the @l relocation for the second instruction. */ - rela.r_offset = (htab->plt->output_section->vma - + htab->plt->output_offset - + ent->plt.offset + 6); - rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, - R_PPC_ADDR16_LO); - rela.r_addend = got_offset; - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - loc += sizeof (Elf32_External_Rela); - - /* Provide a relocation for the GOT entry corresponding to this - PLT slot. Point it at the middle of the .plt entry. */ - rela.r_offset = (htab->sgotplt->output_section->vma - + htab->sgotplt->output_offset - + got_offset); - rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, - R_PPC_ADDR32); - rela.r_addend = ent->plt.offset + 16; - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - - /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. - In particular, the offset for the relocation is not the - address of the PLT entry for this function, as specified - by the ABI. Instead, the offset is set to the address of - the GOT slot for this function. See EABI 4.4.4.1. */ - rela.r_offset = (htab->sgotplt->output_section->vma - + htab->sgotplt->output_offset - + got_offset); - - } - else - { - asection *splt = htab->plt; - if (!htab->elf.dynamic_sections_created - || h->dynindx == -1) - splt = htab->iplt; - - rela.r_offset = (splt->output_section->vma - + splt->output_offset - + ent->plt.offset); - if (htab->plt_type == PLT_OLD - || !htab->elf.dynamic_sections_created - || h->dynindx == -1) - { - /* We don't need to fill in the .plt. The ppc dynamic - linker will fill it in. */ - } - else - { - bfd_vma val = (htab->glink_pltresolve + ent->plt.offset - + htab->glink->output_section->vma - + htab->glink->output_offset); - bfd_put_32 (output_bfd, val, - splt->contents + ent->plt.offset); - } - } - - /* Fill in the entry in the .rela.plt section. */ - rela.r_addend = 0; - if (!htab->elf.dynamic_sections_created - || h->dynindx == -1) - { - BFD_ASSERT (h->type == STT_GNU_IFUNC - && h->def_regular - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)); - rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); - rela.r_addend = SYM_VAL (h); - } - else - rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); - - if (!htab->elf.dynamic_sections_created - || h->dynindx == -1) - loc = (htab->reliplt->contents - + (htab->reliplt->reloc_count++ - * sizeof (Elf32_External_Rela))); - else - loc = (htab->relplt->contents - + reloc_index * sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - - if (!h->def_regular) - { - /* Mark the symbol as undefined, rather than as - defined in the .plt section. Leave the value if - there were any relocations where pointer equality - matters (this is a clue for the dynamic linker, to - make function pointer comparisons work between an - application and shared library), otherwise set it - to zero. */ - sym->st_shndx = SHN_UNDEF; - if (!h->pointer_equality_needed) - sym->st_value = 0; - else if (!h->ref_regular_nonweak) - { - /* This breaks function pointer comparisons, but - that is better than breaking tests for a NULL - function pointer. */ - sym->st_value = 0; - } - } - else if (h->type == STT_GNU_IFUNC - && !info->shared) - { - /* Set the value of ifunc symbols in a non-pie - executable to the glink entry. This is to avoid - text relocations. We can't do this for ifunc in - allocate_dynrelocs, as we do for normal dynamic - function symbols with plt entries, because we need - to keep the original value around for the ifunc - relocation. */ - sym->st_shndx = (_bfd_elf_section_from_bfd_section - (output_bfd, htab->glink->output_section)); - sym->st_value = (ent->glink_offset - + htab->glink->output_offset - + htab->glink->output_section->vma); - } - doneone = TRUE; - } - - if (htab->plt_type == PLT_NEW - || !htab->elf.dynamic_sections_created - || h->dynindx == -1) - { - unsigned char *p; - asection *splt = htab->plt; - if (!htab->elf.dynamic_sections_created - || h->dynindx == -1) - splt = htab->iplt; - - p = (unsigned char *) htab->glink->contents + ent->glink_offset; - - if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt) - { - bfd_put_32 (output_bfd, LWZ_11_3, p); - p += 4; - bfd_put_32 (output_bfd, LWZ_12_3 + 4, p); - p += 4; - bfd_put_32 (output_bfd, MR_0_3, p); - p += 4; - bfd_put_32 (output_bfd, CMPWI_11_0, p); - p += 4; - bfd_put_32 (output_bfd, ADD_3_12_2, p); - p += 4; - bfd_put_32 (output_bfd, BEQLR, p); - p += 4; - bfd_put_32 (output_bfd, MR_3_0, p); - p += 4; - bfd_put_32 (output_bfd, NOP, p); - p += 4; - } - - write_glink_stub (ent, splt, p, info); - - if (!info->shared) - /* We only need one non-PIC glink stub. */ - break; - } - else - break; - } - - if (h->needs_copy) - { - asection *s; - Elf_Internal_Rela rela; - bfd_byte *loc; - - /* This symbols needs a copy reloc. Set it up. */ - -#ifdef DEBUG - fprintf (stderr, ", copy"); -#endif - - BFD_ASSERT (h->dynindx != -1); - - if (ppc_elf_hash_entry (h)->has_sda_refs) - s = htab->relsbss; - else - s = htab->relbss; - BFD_ASSERT (s != NULL); - - rela.r_offset = SYM_VAL (h); - rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); - rela.r_addend = 0; - loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - -#ifdef DEBUG - fprintf (stderr, "\n"); -#endif - - return TRUE; -} - -static enum elf_reloc_type_class -ppc_elf_reloc_type_class (const struct bfd_link_info *info, - const asection *rel_sec, - const Elf_Internal_Rela *rela) -{ - struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); - - if (rel_sec == htab->reliplt) - return reloc_class_ifunc; - - switch (ELF32_R_TYPE (rela->r_info)) - { - case R_PPC_RELATIVE: - return reloc_class_relative; - case R_PPC_JMP_SLOT: - return reloc_class_plt; - case R_PPC_COPY: - return reloc_class_copy; - default: - return reloc_class_normal; - } -} - -/* Finish up the dynamic sections. */ - -static bfd_boolean -ppc_elf_finish_dynamic_sections (bfd *output_bfd, - struct bfd_link_info *info) -{ - asection *sdyn; - asection *splt; - struct ppc_elf_link_hash_table *htab; - bfd_vma got; - bfd *dynobj; - bfd_boolean ret = TRUE; - -#ifdef DEBUG - fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); -#endif - - htab = ppc_elf_hash_table (info); - dynobj = elf_hash_table (info)->dynobj; - sdyn = bfd_get_linker_section (dynobj, ".dynamic"); - if (htab->is_vxworks) - splt = bfd_get_linker_section (dynobj, ".plt"); - else - splt = NULL; - - got = 0; - if (htab->elf.hgot != NULL) - got = SYM_VAL (htab->elf.hgot); - - if (htab->elf.dynamic_sections_created) - { - Elf32_External_Dyn *dyncon, *dynconend; - - BFD_ASSERT (htab->plt != NULL && sdyn != NULL); - - dyncon = (Elf32_External_Dyn *) sdyn->contents; - dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); - for (; dyncon < dynconend; dyncon++) - { - Elf_Internal_Dyn dyn; - asection *s; - - bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); - - switch (dyn.d_tag) - { - case DT_PLTGOT: - if (htab->is_vxworks) - s = htab->sgotplt; - else - s = htab->plt; - dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; - break; - - case DT_PLTRELSZ: - dyn.d_un.d_val = htab->relplt->size; - break; - - case DT_JMPREL: - s = htab->relplt; - dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; - break; - - case DT_PPC_GOT: - dyn.d_un.d_ptr = got; - break; - - case DT_RELASZ: - if (htab->is_vxworks) - { - if (htab->relplt) - dyn.d_un.d_ptr -= htab->relplt->size; - break; - } - continue; - - default: - if (htab->is_vxworks - && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) - break; - continue; - } - - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - } - } - - if (htab->got != NULL) - { - if (htab->elf.hgot->root.u.def.section == htab->got - || htab->elf.hgot->root.u.def.section == htab->sgotplt) - { - unsigned char *p = htab->elf.hgot->root.u.def.section->contents; - - p += htab->elf.hgot->root.u.def.value; - if (htab->plt_type == PLT_OLD) - { - /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 - so that a function can easily find the address of - _GLOBAL_OFFSET_TABLE_. */ - BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 - < htab->elf.hgot->root.u.def.section->size); - bfd_put_32 (output_bfd, 0x4e800021, p - 4); - } - - if (sdyn != NULL) - { - bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; - BFD_ASSERT (htab->elf.hgot->root.u.def.value - < htab->elf.hgot->root.u.def.section->size); - bfd_put_32 (output_bfd, val, p); - } - } - else - { - info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"), - htab->elf.hgot->root.root.string, - (htab->sgotplt != NULL - ? htab->sgotplt->name : htab->got->name)); - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - } - - elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; - } - - /* Fill in the first entry in the VxWorks procedure linkage table. */ - if (splt && splt->size > 0) - { - /* Use the right PLT. */ - const bfd_vma *plt_entry = (info->shared - ? ppc_elf_vxworks_pic_plt0_entry - : ppc_elf_vxworks_plt0_entry); - - if (!info->shared) - { - bfd_vma got_value = SYM_VAL (htab->elf.hgot); - - bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), - splt->contents + 0); - bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), - splt->contents + 4); - } - else - { - bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); - bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); - } - bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); - bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); - bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); - bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); - bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); - bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); - - if (! info->shared) - { - Elf_Internal_Rela rela; - bfd_byte *loc; - - loc = htab->srelplt2->contents; - - /* Output the @ha relocation for the first instruction. */ - rela.r_offset = (htab->plt->output_section->vma - + htab->plt->output_offset - + 2); - rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); - rela.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - loc += sizeof (Elf32_External_Rela); - - /* Output the @l relocation for the second instruction. */ - rela.r_offset = (htab->plt->output_section->vma - + htab->plt->output_offset - + 6); - rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); - rela.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - loc += sizeof (Elf32_External_Rela); - - /* Fix up the remaining relocations. They may have the wrong - symbol index for _G_O_T_ or _P_L_T_ depending on the order - in which symbols were output. */ - while (loc < htab->srelplt2->contents + htab->srelplt2->size) - { - Elf_Internal_Rela rel; - - bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); - rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); - bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); - loc += sizeof (Elf32_External_Rela); - - bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); - rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); - bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); - loc += sizeof (Elf32_External_Rela); - - bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); - rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); - bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); - loc += sizeof (Elf32_External_Rela); - } - } - } - - if (htab->glink != NULL - && htab->glink->contents != NULL - && htab->elf.dynamic_sections_created) - { - unsigned char *p; - unsigned char *endp; - bfd_vma res0; - unsigned int i; - - /* - * PIC glink code is the following: - * - * # ith PLT code stub. - * addis 11,30,(plt+(i-1)*4-got)@ha - * lwz 11,(plt+(i-1)*4-got)@l(11) - * mtctr 11 - * bctr - * - * # A table of branches, one for each plt entry. - * # The idea is that the plt call stub loads ctr and r11 with these - * # addresses, so (r11 - res_0) gives the plt index * 4. - * res_0: b PLTresolve - * res_1: b PLTresolve - * . - * # Some number of entries towards the end can be nops - * res_n_m3: nop - * res_n_m2: nop - * res_n_m1: - * - * PLTresolve: - * addis 11,11,(1f-res_0)@ha - * mflr 0 - * bcl 20,31,1f - * 1: addi 11,11,(1b-res_0)@l - * mflr 12 - * mtlr 0 - * sub 11,11,12 # r11 = index * 4 - * addis 12,12,(got+4-1b)@ha - * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve - * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address - * mtctr 0 - * add 0,11,11 - * add 11,0,11 # r11 = index * 12 = reloc offset. - * bctr - */ - static const unsigned int pic_plt_resolve[] = - { - ADDIS_11_11, - MFLR_0, - BCL_20_31, - ADDI_11_11, - MFLR_12, - MTLR_0, - SUB_11_11_12, - ADDIS_12_12, - LWZ_0_12, - LWZ_12_12, - MTCTR_0, - ADD_0_11_11, - ADD_11_0_11, - BCTR, - NOP, - NOP - }; - - /* - * Non-PIC glink code is a little simpler. - * - * # ith PLT code stub. - * lis 11,(plt+(i-1)*4)@ha - * lwz 11,(plt+(i-1)*4)@l(11) - * mtctr 11 - * bctr - * - * The branch table is the same, then comes - * - * PLTresolve: - * lis 12,(got+4)@ha - * addis 11,11,(-res_0)@ha - * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve - * addi 11,11,(-res_0)@l # r11 = index * 4 - * mtctr 0 - * add 0,11,11 - * lwz 12,(got+8)@l(12) # got[2] contains the map address - * add 11,0,11 # r11 = index * 12 = reloc offset. - * bctr - */ - static const unsigned int plt_resolve[] = - { - LIS_12, - ADDIS_11_11, - LWZ_0_12, - ADDI_11_11, - MTCTR_0, - ADD_0_11_11, - LWZ_12_12, - ADD_11_0_11, - BCTR, - NOP, - NOP, - NOP, - NOP, - NOP, - NOP, - NOP - }; - - if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) - abort (); - if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) - abort (); - - /* Build the branch table, one for each plt entry (less one), - and perhaps some padding. */ - p = htab->glink->contents; - p += htab->glink_pltresolve; - endp = htab->glink->contents; - endp += htab->glink->size - GLINK_PLTRESOLVE; - while (p < endp - 8 * 4) - { - bfd_put_32 (output_bfd, B + endp - p, p); - p += 4; - } - while (p < endp) - { - bfd_put_32 (output_bfd, NOP, p); - p += 4; - } - - res0 = (htab->glink_pltresolve - + htab->glink->output_section->vma - + htab->glink->output_offset); - - /* Last comes the PLTresolve stub. */ - if (info->shared) - { - bfd_vma bcl; - - for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) - { - bfd_put_32 (output_bfd, pic_plt_resolve[i], p); - p += 4; - } - p -= 4 * ARRAY_SIZE (pic_plt_resolve); - - bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 - + htab->glink->output_section->vma - + htab->glink->output_offset); - - bfd_put_32 (output_bfd, - ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); - bfd_put_32 (output_bfd, - ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); - bfd_put_32 (output_bfd, - ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); - if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) - { - bfd_put_32 (output_bfd, - LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); - bfd_put_32 (output_bfd, - LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); - } - else - { - bfd_put_32 (output_bfd, - LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); - bfd_put_32 (output_bfd, - LWZ_12_12 + 4, p + 9*4); - } - } - else - { - for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) - { - bfd_put_32 (output_bfd, plt_resolve[i], p); - p += 4; - } - p -= 4 * ARRAY_SIZE (plt_resolve); - - bfd_put_32 (output_bfd, - LIS_12 + PPC_HA (got + 4), p + 0*4); - bfd_put_32 (output_bfd, - ADDIS_11_11 + PPC_HA (-res0), p + 1*4); - bfd_put_32 (output_bfd, - ADDI_11_11 + PPC_LO (-res0), p + 3*4); - if (PPC_HA (got + 4) == PPC_HA (got + 8)) - { - bfd_put_32 (output_bfd, - LWZ_0_12 + PPC_LO (got + 4), p + 2*4); - bfd_put_32 (output_bfd, - LWZ_12_12 + PPC_LO (got + 8), p + 6*4); - } - else - { - bfd_put_32 (output_bfd, - LWZU_0_12 + PPC_LO (got + 4), p + 2*4); - bfd_put_32 (output_bfd, - LWZ_12_12 + 4, p + 6*4); - } - } - } - - if (htab->glink_eh_frame != NULL - && htab->glink_eh_frame->contents != NULL) - { - unsigned char *p = htab->glink_eh_frame->contents; - bfd_vma val; - - p += sizeof (glink_eh_frame_cie); - /* FDE length. */ - p += 4; - /* CIE pointer. */ - p += 4; - /* Offset to .glink. */ - val = (htab->glink->output_section->vma - + htab->glink->output_offset); - val -= (htab->glink_eh_frame->output_section->vma - + htab->glink_eh_frame->output_offset); - val -= p - htab->glink_eh_frame->contents; - bfd_put_32 (htab->elf.dynobj, val, p); - - if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME - && !_bfd_elf_write_section_eh_frame (output_bfd, info, - htab->glink_eh_frame, - htab->glink_eh_frame->contents)) - return FALSE; - } - - return ret; -} - -#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec -#define TARGET_LITTLE_NAME "elf32-powerpcle" -#define TARGET_BIG_SYM bfd_elf32_powerpc_vec -#define TARGET_BIG_NAME "elf32-powerpc" -#define ELF_ARCH bfd_arch_powerpc -#define ELF_TARGET_ID PPC32_ELF_DATA -#define ELF_MACHINE_CODE EM_PPC -#ifdef __QNXTARGET__ -#define ELF_MAXPAGESIZE 0x1000 -#else -#define ELF_MAXPAGESIZE 0x10000 -#endif -#define ELF_MINPAGESIZE 0x1000 -#define ELF_COMMONPAGESIZE 0x1000 -#define elf_info_to_howto ppc_elf_info_to_howto - -#ifdef EM_CYGNUS_POWERPC -#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC -#endif - -#ifdef EM_PPC_OLD -#define ELF_MACHINE_ALT2 EM_PPC_OLD -#endif - -#define elf_backend_plt_not_loaded 1 -#define elf_backend_can_gc_sections 1 -#define elf_backend_can_refcount 1 -#define elf_backend_rela_normal 1 - -#define bfd_elf32_mkobject ppc_elf_mkobject -#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data -#define bfd_elf32_bfd_relax_section ppc_elf_relax_section -#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup -#define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup -#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags -#define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create -#define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab - -#define elf_backend_object_p ppc_elf_object_p -#define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook -#define elf_backend_section_from_shdr ppc_elf_section_from_shdr -#define elf_backend_relocate_section ppc_elf_relocate_section -#define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections -#define elf_backend_check_relocs ppc_elf_check_relocs -#define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol -#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol -#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook -#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections -#define elf_backend_hash_symbol ppc_elf_hash_symbol -#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections -#define elf_backend_fake_sections ppc_elf_fake_sections -#define elf_backend_additional_program_headers ppc_elf_additional_program_headers -#define elf_backend_modify_segment_map ppc_elf_modify_segment_map -#define elf_backend_grok_prstatus ppc_elf_grok_prstatus -#define elf_backend_grok_psinfo ppc_elf_grok_psinfo -#define elf_backend_write_core_note ppc_elf_write_core_note -#define elf_backend_reloc_type_class ppc_elf_reloc_type_class -#define elf_backend_begin_write_processing ppc_elf_begin_write_processing -#define elf_backend_final_write_processing ppc_elf_final_write_processing -#define elf_backend_write_section ppc_elf_write_section -#define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr -#define elf_backend_plt_sym_val ppc_elf_plt_sym_val -#define elf_backend_action_discarded ppc_elf_action_discarded -#define elf_backend_init_index_section _bfd_elf_init_1_index_section -#define elf_backend_post_process_headers _bfd_elf_set_osabi -#define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags -#define elf_backend_section_processing ppc_elf_section_processing - -#include "elf32-target.h" - -/* FreeBSD Target */ - -#undef TARGET_LITTLE_SYM -#undef TARGET_LITTLE_NAME - -#undef TARGET_BIG_SYM -#define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec -#undef TARGET_BIG_NAME -#define TARGET_BIG_NAME "elf32-powerpc-freebsd" - -#undef ELF_OSABI -#define ELF_OSABI ELFOSABI_FREEBSD - -#undef elf32_bed -#define elf32_bed elf32_powerpc_fbsd_bed - -#include "elf32-target.h" - -/* VxWorks Target */ - -#undef TARGET_LITTLE_SYM -#undef TARGET_LITTLE_NAME - -#undef TARGET_BIG_SYM -#define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec -#undef TARGET_BIG_NAME -#define TARGET_BIG_NAME "elf32-powerpc-vxworks" - -#undef ELF_OSABI - -/* VxWorks uses the elf default section flags for .plt. */ -static const struct bfd_elf_special_section * -ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) -{ - if (sec->name == NULL) - return NULL; - - if (strcmp (sec->name, ".plt") == 0) - return _bfd_elf_get_sec_type_attr (abfd, sec); - - return ppc_elf_get_sec_type_attr (abfd, sec); -} - -/* Like ppc_elf_link_hash_table_create, but overrides - appropriately for VxWorks. */ -static struct bfd_link_hash_table * -ppc_elf_vxworks_link_hash_table_create (bfd *abfd) -{ - struct bfd_link_hash_table *ret; - - ret = ppc_elf_link_hash_table_create (abfd); - if (ret) - { - struct ppc_elf_link_hash_table *htab - = (struct ppc_elf_link_hash_table *)ret; - htab->is_vxworks = 1; - htab->plt_type = PLT_VXWORKS; - htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; - htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; - htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; - } - return ret; -} - -/* Tweak magic VxWorks symbols as they are loaded. */ -static bfd_boolean -ppc_elf_vxworks_add_symbol_hook (bfd *abfd, - struct bfd_link_info *info, - Elf_Internal_Sym *sym, - const char **namep ATTRIBUTE_UNUSED, - flagword *flagsp ATTRIBUTE_UNUSED, - asection **secp, - bfd_vma *valp) -{ - if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, - valp)) - return FALSE; - - return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); -} - -static void -ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) -{ - ppc_elf_final_write_processing(abfd, linker); - elf_vxworks_final_write_processing(abfd, linker); -} - -/* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so - define it. */ -#undef elf_backend_want_plt_sym -#define elf_backend_want_plt_sym 1 -#undef elf_backend_want_got_plt -#define elf_backend_want_got_plt 1 -#undef elf_backend_got_symbol_offset -#define elf_backend_got_symbol_offset 0 -#undef elf_backend_plt_not_loaded -#define elf_backend_plt_not_loaded 0 -#undef elf_backend_plt_readonly -#define elf_backend_plt_readonly 1 -#undef elf_backend_got_header_size -#define elf_backend_got_header_size 12 - -#undef bfd_elf32_get_synthetic_symtab - -#undef bfd_elf32_bfd_link_hash_table_create -#define bfd_elf32_bfd_link_hash_table_create \ - ppc_elf_vxworks_link_hash_table_create -#undef elf_backend_add_symbol_hook -#define elf_backend_add_symbol_hook \ - ppc_elf_vxworks_add_symbol_hook -#undef elf_backend_link_output_symbol_hook -#define elf_backend_link_output_symbol_hook \ - elf_vxworks_link_output_symbol_hook -#undef elf_backend_final_write_processing -#define elf_backend_final_write_processing \ - ppc_elf_vxworks_final_write_processing -#undef elf_backend_get_sec_type_attr -#define elf_backend_get_sec_type_attr \ - ppc_elf_vxworks_get_sec_type_attr -#undef elf_backend_emit_relocs -#define elf_backend_emit_relocs \ - elf_vxworks_emit_relocs - -#undef elf32_bed -#define elf32_bed ppc_elf_vxworks_bed -#undef elf_backend_post_process_headers - -#include "elf32-target.h" |