diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-cris.c')
| -rw-r--r-- | binutils-2.24/bfd/elf32-cris.c | 4408 |
1 files changed, 0 insertions, 4408 deletions
diff --git a/binutils-2.24/bfd/elf32-cris.c b/binutils-2.24/bfd/elf32-cris.c deleted file mode 100644 index f40a0796..00000000 --- a/binutils-2.24/bfd/elf32-cris.c +++ /dev/null @@ -1,4408 +0,0 @@ -/* CRIS-specific support for 32-bit ELF. - Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, - 2010, 2011, 2012 Free Software Foundation, Inc. - Contributed by Axis Communications AB. - Written by Hans-Peter Nilsson, based on elf32-fr30.c - PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c. - - 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. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/cris.h" -#include <limits.h> - -bfd_reloc_status_type -cris_elf_pcrel_reloc (bfd *, arelent *, asymbol *, void *, - asection *, bfd *, char **); -static bfd_boolean -cris_elf_set_mach_from_flags (bfd *, unsigned long); - -/* Forward declarations. */ -static reloc_howto_type cris_elf_howto_table [] = -{ - /* This reloc does nothing. */ - HOWTO (R_CRIS_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_CRIS_NONE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An 8 bit absolute relocation. */ - HOWTO (R_CRIS_8, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_CRIS_8", /* name */ - FALSE, /* partial_inplace */ - 0x0000, /* src_mask */ - 0x00ff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit absolute relocation. */ - HOWTO (R_CRIS_16, /* 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_CRIS_16", /* name */ - FALSE, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32 bit absolute relocation. */ - HOWTO (R_CRIS_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - /* We don't want overflow complaints for 64-bit vma builds - for e.g. sym+0x40000000 (or actually sym-0xc0000000 in - 32-bit ELF) where sym=0xc0001234. - Don't do this for the PIC relocs, as we don't expect to - see them with large offsets. */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_CRIS_32", /* name */ - FALSE, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An 8 bit PC-relative relocation. */ - HOWTO (R_CRIS_8_PCREL, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - cris_elf_pcrel_reloc, /* special_function */ - "R_CRIS_8_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0x0000, /* src_mask */ - 0x00ff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A 16 bit PC-relative relocation. */ - HOWTO (R_CRIS_16_PCREL, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - cris_elf_pcrel_reloc, /* special_function */ - "R_CRIS_16_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0x0000ffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A 32 bit PC-relative relocation. */ - HOWTO (R_CRIS_32_PCREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - cris_elf_pcrel_reloc, /* special_function */ - "R_CRIS_32_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0xffffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable hierarchy. */ - HOWTO (R_CRIS_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_CRIS_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_CRIS_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_elf_rel_vtable_reloc_fn, /* special_function */ - "R_CRIS_GNU_VTENTRY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* 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_CRIS_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_CRIS_COPY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_CRIS_32, but used when setting global offset table entries. */ - HOWTO (R_CRIS_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_CRIS_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_CRIS_JUMP_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_CRIS_JUMP_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_CRIS_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_CRIS_RELATIVE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */ - HOWTO (R_CRIS_16_GOT, /* 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_CRIS_16_GOT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_CRIS_32_GOT, /* 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_CRIS_32_GOT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of - the GOT table for the symbol. */ - HOWTO (R_CRIS_16_GOTPLT, /* 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_CRIS_16_GOTPLT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_CRIS_32_GOTPLT, /* 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_CRIS_32_GOTPLT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should - be necessary. */ - HOWTO (R_CRIS_32_GOTREL, /* 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_CRIS_32_GOTREL", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32-bit offset from GOT to entry for this symbol in PLT and request - to create PLT entry for symbol. */ - HOWTO (R_CRIS_32_PLT_GOTREL, /* 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_CRIS_32_PLT_GOTREL", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32-bit offset from PC (location after the relocation) + addend to - entry for this symbol in PLT and request to create PLT entry for - symbol. */ - HOWTO (R_CRIS_32_PLT_PCREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - cris_elf_pcrel_reloc, /* special_function */ - "R_CRIS_32_PLT_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* We don't handle these in any special manner and cross-format - linking is not supported; just recognize them enough to pass them - around. FIXME: do the same for most PIC relocs and add sanity - tests to actually refuse gracefully to handle these and PIC - relocs for cross-format linking. */ -#define TLSHOWTO32(name) \ - HOWTO (name, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, \ - bfd_elf_generic_reloc, #name, FALSE, 0, 0xffffffff, FALSE) -#define TLSHOWTO16X(name, X) \ - HOWTO (name, 0, 1, 16, FALSE, 0, complain_overflow_ ## X, \ - bfd_elf_generic_reloc, #name, FALSE, 0, 0xffff, FALSE) -#define TLSHOWTO16(name) TLSHOWTO16X(name, unsigned) -#define TLSHOWTO16S(name) TLSHOWTO16X(name, signed) - - TLSHOWTO32 (R_CRIS_32_GOT_GD), - TLSHOWTO16 (R_CRIS_16_GOT_GD), - TLSHOWTO32 (R_CRIS_32_GD), - TLSHOWTO32 (R_CRIS_DTP), - TLSHOWTO32 (R_CRIS_32_DTPREL), - TLSHOWTO16S (R_CRIS_16_DTPREL), - TLSHOWTO32 (R_CRIS_32_GOT_TPREL), - TLSHOWTO16S (R_CRIS_16_GOT_TPREL), - TLSHOWTO32 (R_CRIS_32_TPREL), - TLSHOWTO16S (R_CRIS_16_TPREL), - TLSHOWTO32 (R_CRIS_DTPMOD), - TLSHOWTO32 (R_CRIS_32_IE) -}; - -/* Map BFD reloc types to CRIS ELF reloc types. */ - -struct cris_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned int cris_reloc_val; -}; - -static const struct cris_reloc_map cris_reloc_map [] = -{ - { BFD_RELOC_NONE, R_CRIS_NONE }, - { BFD_RELOC_8, R_CRIS_8 }, - { BFD_RELOC_16, R_CRIS_16 }, - { BFD_RELOC_32, R_CRIS_32 }, - { BFD_RELOC_8_PCREL, R_CRIS_8_PCREL }, - { BFD_RELOC_16_PCREL, R_CRIS_16_PCREL }, - { BFD_RELOC_32_PCREL, R_CRIS_32_PCREL }, - { BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY }, - { BFD_RELOC_CRIS_COPY, R_CRIS_COPY }, - { BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT }, - { BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT }, - { BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE }, - { BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT }, - { BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT }, - { BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT }, - { BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT }, - { BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL }, - { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL }, - { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }, - { BFD_RELOC_CRIS_32_GOT_GD, R_CRIS_32_GOT_GD }, - { BFD_RELOC_CRIS_16_GOT_GD, R_CRIS_16_GOT_GD }, - { BFD_RELOC_CRIS_32_GD, R_CRIS_32_GD }, - { BFD_RELOC_CRIS_DTP, R_CRIS_DTP }, - { BFD_RELOC_CRIS_32_DTPREL, R_CRIS_32_DTPREL }, - { BFD_RELOC_CRIS_16_DTPREL, R_CRIS_16_DTPREL }, - { BFD_RELOC_CRIS_32_GOT_TPREL, R_CRIS_32_GOT_TPREL }, - { BFD_RELOC_CRIS_16_GOT_TPREL, R_CRIS_16_GOT_TPREL }, - { BFD_RELOC_CRIS_32_TPREL, R_CRIS_32_TPREL }, - { BFD_RELOC_CRIS_16_TPREL, R_CRIS_16_TPREL }, - { BFD_RELOC_CRIS_DTPMOD, R_CRIS_DTPMOD }, - { BFD_RELOC_CRIS_32_IE, R_CRIS_32_IE } -}; - -static reloc_howto_type * -cris_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - unsigned int i; - - for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++) - if (cris_reloc_map [i].bfd_reloc_val == code) - return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val]; - - return NULL; -} - -static reloc_howto_type * -cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) -{ - unsigned int i; - - for (i = 0; - i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]); - i++) - if (cris_elf_howto_table[i].name != NULL - && strcasecmp (cris_elf_howto_table[i].name, r_name) == 0) - return &cris_elf_howto_table[i]; - - return NULL; -} - -/* Set the howto pointer for an CRIS ELF reloc. */ - -static void -cris_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, - arelent * cache_ptr, - Elf_Internal_Rela * dst) -{ - enum elf_cris_reloc_type r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_CRIS_max); - cache_ptr->howto = & cris_elf_howto_table [r_type]; -} - -bfd_reloc_status_type -cris_elf_pcrel_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) -{ - /* By default (using only bfd_elf_generic_reloc when linking to - non-ELF formats) PC-relative relocs are relative to the beginning - of the reloc. CRIS PC-relative relocs are relative to the position - *after* the reloc because that's what pre-CRISv32 PC points to - after reading an insn field with that reloc. (For CRISv32, PC is - actually relative to the start of the insn, but we keep the old - definition.) Still, we use as much generic machinery as we can. - - Only adjust when doing a final link. */ - if (output_bfd == (bfd *) NULL) - reloc_entry->addend -= 1 << reloc_entry->howto->size; - - return - bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - -/* Support for core dump NOTE sections. - The slightly unintuitive code layout is an attempt to keep at least - some similarities with other ports, hoping to simplify general - changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */ - -static bfd_boolean -cris_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) -{ - int offset; - size_t size; - - if (bfd_get_mach (abfd) == bfd_mach_cris_v32) - switch (note->descsz) - { - default: - return FALSE; - - case 202: /* Linux/CRISv32 */ - /* 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 + 22); - - /* pr_reg */ - offset = 70; - size = 128; - - break; - } - else - switch (note->descsz) - { - default: - return FALSE; - - case 214: /* Linux/CRIS */ - /* 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 + 22); - - /* pr_reg */ - offset = 70; - size = 140; - - break; - } - - /* Make a ".reg/999" section. */ - return _bfd_elfcore_make_pseudosection (abfd, ".reg", - size, note->descpos + offset); -} - -static bfd_boolean -cris_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) -{ - if (bfd_get_mach (abfd) == bfd_mach_cris_v32) - switch (note->descsz) - { - default: - return FALSE; - - case 124: /* Linux/CRISv32 elf_prpsinfo */ - elf_tdata (abfd)->core->program - = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); - elf_tdata (abfd)->core->command - = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); - } - else - switch (note->descsz) - { - default: - return FALSE; - - case 124: /* Linux/CRIS elf_prpsinfo */ - elf_tdata (abfd)->core->program - = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); - elf_tdata (abfd)->core->command - = _bfd_elfcore_strndup (abfd, note->descdata + 44, 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; -} - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ - -#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" - -/* The size in bytes of an entry in the procedure linkage table. */ - -#define PLT_ENTRY_SIZE 20 -#define PLT_ENTRY_SIZE_V32 26 - -/* The first entry in an absolute procedure linkage table looks like this. */ - -static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] = -{ - 0xfc, 0xe1, - 0x7e, 0x7e, /* push mof. */ - 0x7f, 0x0d, /* (dip [pc+]) */ - 0, 0, 0, 0, /* Replaced with address of .got + 4. */ - 0x30, 0x7a, /* move [...],mof */ - 0x7f, 0x0d, /* (dip [pc+]) */ - 0, 0, 0, 0, /* Replaced with address of .got + 8. */ - 0x30, 0x09 /* jump [...] */ -}; - -static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] = -{ - 0x84, 0xe2, /* subq 4,$sp */ - 0x6f, 0xfe, /* move.d 0,$acr */ - 0, 0, 0, 0, /* Replaced by address of .got + 4. */ - 0x7e, 0x7a, /* move $mof,[$sp] */ - 0x3f, 0x7a, /* move [$acr],$mof */ - 0x04, 0xf2, /* addq 4,acr */ - 0x6f, 0xfa, /* move.d [$acr],$acr */ - 0xbf, 0x09, /* jump $acr */ - 0xb0, 0x05, /* nop */ - 0, 0 /* Pad out to 26 bytes. */ -}; - -/* Subsequent entries in an absolute procedure linkage table look like - this. */ - -static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] = -{ - 0x7f, 0x0d, /* (dip [pc+]) */ - 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */ - 0x30, 0x09, /* jump [...] */ - 0x3f, 0x7e, /* move [pc+],mof */ - 0, 0, 0, 0, /* Replaced with offset into relocation table. */ - 0x2f, 0xfe, /* add.d [pc+],pc */ - 0xec, 0xff, - 0xff, 0xff /* Replaced with offset to start of .plt. */ -}; - -static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] = -{ - 0x6f, 0xfe, /* move.d 0,$acr */ - 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */ - 0x6f, 0xfa, /* move.d [$acr],$acr */ - 0xbf, 0x09, /* jump $acr */ - 0xb0, 0x05, /* nop */ - 0x3f, 0x7e, /* move 0,mof */ - 0, 0, 0, 0, /* Replaced with offset into relocation table. */ - 0xbf, 0x0e, /* ba start_of_plt0_entry */ - 0, 0, 0, 0, /* Replaced with offset to plt0 entry. */ - 0xb0, 0x05 /* nop */ -}; - -/* The first entry in a PIC procedure linkage table looks like this. */ - -static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] = -{ - 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */ - 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */ - 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */ - 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */ -}; - -static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] = -{ - 0x84, 0xe2, /* subq 4,$sp */ - 0x04, 0x01, /* addoq 4,$r0,$acr */ - 0x7e, 0x7a, /* move $mof,[$sp] */ - 0x3f, 0x7a, /* move [$acr],$mof */ - 0x04, 0xf2, /* addq 4,$acr */ - 0x6f, 0xfa, /* move.d [$acr],$acr */ - 0xbf, 0x09, /* jump $acr */ - 0xb0, 0x05, /* nop */ - 0, 0, /* Pad out to 26 bytes. */ - 0, 0, 0, 0, - 0, 0, 0, 0 -}; - -/* Subsequent entries in a PIC procedure linkage table look like this. */ - -static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] = -{ - 0x6f, 0x0d, /* (bdap [pc+].d,r0) */ - 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */ - 0x30, 0x09, /* jump [...] */ - 0x3f, 0x7e, /* move [pc+],mof */ - 0, 0, 0, 0, /* Replaced with offset into relocation table. */ - 0x2f, 0xfe, /* add.d [pc+],pc */ - 0xec, 0xff, /* Replaced with offset to start of .plt. */ - 0xff, 0xff -}; - -static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] = -{ - 0x6f, 0x0d, /* addo.d 0,$r0,$acr */ - 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */ - 0x6f, 0xfa, /* move.d [$acr],$acr */ - 0xbf, 0x09, /* jump $acr */ - 0xb0, 0x05, /* nop */ - 0x3f, 0x7e, /* move relocoffs,$mof */ - 0, 0, 0, 0, /* Replaced with offset into relocation table. */ - 0xbf, 0x0e, /* ba start_of_plt */ - 0, 0, 0, 0, /* Replaced with offset to start of .plt. */ - 0xb0, 0x05 /* nop */ -}; - -/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits - (and most other PIC/shlib stuff). Check that we don't drift away - without reason. - - The CRIS linker, like the m68k and i386 linkers (and probably the rest - too) needs to keep track of the number of relocs that it decides to - copy in check_relocs for each symbol. This is so that it can discard - PC relative relocs if it doesn't need them when linking with - -Bsymbolic. We store the information in a field extending the regular - ELF linker hash table. */ - -/* This structure keeps track of the number of PC relative relocs we have - copied for a given symbol. */ - -struct elf_cris_pcrel_relocs_copied -{ - /* Next section. */ - struct elf_cris_pcrel_relocs_copied *next; - - /* A section in dynobj. */ - asection *section; - - /* Number of relocs copied in this section. */ - bfd_size_type count; - - /* Example of reloc being copied, for message. */ - enum elf_cris_reloc_type r_type; -}; - -/* CRIS ELF linker hash entry. */ - -struct elf_cris_link_hash_entry -{ - struct elf_link_hash_entry root; - - /* Number of PC relative relocs copied for this symbol. */ - struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied; - - /* The GOTPLT references are CRIS-specific; the goal is to avoid having - both a general GOT and a PLT-specific GOT entry for the same symbol, - when it is referenced both as a function and as a function pointer. - - Number of GOTPLT references for a function. */ - bfd_signed_vma gotplt_refcount; - - /* Actual GOTPLT index for this symbol, if applicable, or zero if not - (zero is never used as an index). FIXME: We should be able to fold - this with gotplt_refcount in a union, like the got and plt unions in - elf_link_hash_entry. */ - bfd_size_type gotplt_offset; - - /* The root.got.refcount is the sum of the regular reference counts - (this) and those members below. We have to keep a separate count - to track when we've found the first (or last) reference to a - regular got entry. The offset is in root.got.offset. */ - bfd_signed_vma reg_got_refcount; - - /* Similar to the above, the number of reloc references to this - symbols that need a R_CRIS_32_TPREL slot. The offset is in - root.got.offset, because this and .dtp_refcount can't validly - happen when there's also a regular GOT entry; that's invalid - input for which an error is emitted. */ - bfd_signed_vma tprel_refcount; - - /* Similar to the above, the number of reloc references to this - symbols that need a R_CRIS_DTP slot. The offset is in - root.got.offset; plus 4 if .tprel_refcount > 0. */ - bfd_signed_vma dtp_refcount; -}; - -static bfd_boolean -elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry *, - void * ); -static bfd_boolean -elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry *, - void *); - -/* The local_got_refcounts and local_got_offsets are a multiple of - LSNUM in size, namely LGOT_ALLOC_NELTS_FOR(LSNUM) (plus one for the - refcount for GOT itself, see code), with the summary / group offset - for local symbols located at offset N, reference counts for - ordinary (address) relocs at offset N + LSNUM, for R_CRIS_DTP - relocs at offset N + 2*LSNUM, and for R_CRIS_32_TPREL relocs at N + - 3*LSNUM. */ - -#define LGOT_REG_NDX(x) ((x) + symtab_hdr->sh_info) -#define LGOT_DTP_NDX(x) ((x) + 2 * symtab_hdr->sh_info) -#define LGOT_TPREL_NDX(x) ((x) + 3 * symtab_hdr->sh_info) -#define LGOT_ALLOC_NELTS_FOR(x) ((x) * 4) - -/* CRIS ELF linker hash table. */ - -struct elf_cris_link_hash_table -{ - struct elf_link_hash_table root; - - /* We can't use the PLT offset and calculate to get the GOTPLT offset, - since we try and avoid creating GOTPLT:s when there's already a GOT. - Instead, we keep and update the next available index here. */ - bfd_size_type next_gotplt_entry; - - /* The number of R_CRIS_32_DTPREL and R_CRIS_16_DTPREL that have - been seen for any input; if != 0, then the constant-offset - R_CRIS_DTPMOD is needed for this DSO/executable. This turns - negative at relocation, so that we don't need an extra flag for - when the reloc is output. */ - bfd_signed_vma dtpmod_refcount; -}; - -/* Traverse a CRIS ELF linker hash table. */ - -#define elf_cris_link_hash_traverse(table, func, info) \ - (elf_link_hash_traverse \ - (&(table)->root, \ - (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ - (info))) - -/* Get the CRIS ELF linker hash table from a link_info structure. */ - -#define elf_cris_hash_table(p) \ - (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ - == CRIS_ELF_DATA ? ((struct elf_cris_link_hash_table *) ((p)->hash)) : NULL) - -/* Get the CRIS ELF linker hash entry from a regular hash entry (the - "parent class"). The .root reference is just a simple type - check on the argument. */ - -#define elf_cris_hash_entry(p) \ - ((struct elf_cris_link_hash_entry *) (&(p)->root)) - -/* Create an entry in a CRIS ELF linker hash table. */ - -static struct bfd_hash_entry * -elf_cris_link_hash_newfunc (struct bfd_hash_entry *entry, - struct bfd_hash_table *table, - const char *string) -{ - struct elf_cris_link_hash_entry *ret = - (struct elf_cris_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (ret == (struct elf_cris_link_hash_entry *) NULL) - ret = ((struct elf_cris_link_hash_entry *) - bfd_hash_allocate (table, - sizeof (struct elf_cris_link_hash_entry))); - if (ret == (struct elf_cris_link_hash_entry *) NULL) - return (struct bfd_hash_entry *) ret; - - /* Call the allocation method of the superclass. */ - ret = ((struct elf_cris_link_hash_entry *) - _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - if (ret != (struct elf_cris_link_hash_entry *) NULL) - { - ret->pcrel_relocs_copied = NULL; - ret->gotplt_refcount = 0; - ret->gotplt_offset = 0; - ret->dtp_refcount = 0; - ret->tprel_refcount = 0; - ret->reg_got_refcount = 0; - } - - return (struct bfd_hash_entry *) ret; -} - -/* Create a CRIS ELF linker hash table. */ - -static struct bfd_link_hash_table * -elf_cris_link_hash_table_create (bfd *abfd) -{ - struct elf_cris_link_hash_table *ret; - bfd_size_type amt = sizeof (struct elf_cris_link_hash_table); - - ret = ((struct elf_cris_link_hash_table *) bfd_zmalloc (amt)); - if (ret == (struct elf_cris_link_hash_table *) NULL) - return NULL; - - if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, - elf_cris_link_hash_newfunc, - sizeof (struct elf_cris_link_hash_entry), - CRIS_ELF_DATA)) - { - free (ret); - return NULL; - } - - /* Initialize to skip over the first three entries in the gotplt; they - are used for run-time symbol evaluation. */ - ret->next_gotplt_entry = 12; - - return &ret->root.root; -} - -/* Perform a single relocation. By default we use the standard BFD - routines, with a few tweaks. */ - -static bfd_reloc_status_type -cris_final_link_relocate (reloc_howto_type * howto, - bfd * input_bfd, - asection * input_section, - bfd_byte * contents, - Elf_Internal_Rela * rel, - bfd_vma relocation) -{ - bfd_reloc_status_type r; - enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rel->r_info); - - /* PC-relative relocations are relative to the position *after* - the reloc. Note that for R_CRIS_8_PCREL the adjustment is - not a single byte, since PC must be 16-bit-aligned. */ - switch (r_type) - { - /* Check that the 16-bit GOT relocs are positive. */ - case R_CRIS_16_GOTPLT: - case R_CRIS_16_GOT: - if ((bfd_signed_vma) relocation < 0) - return bfd_reloc_overflow; - break; - - case R_CRIS_32_PLT_PCREL: - case R_CRIS_32_PCREL: - relocation -= 2; - /* Fall through. */ - case R_CRIS_8_PCREL: - case R_CRIS_16_PCREL: - relocation -= 2; - break; - - default: - break; - } - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - return r; -} - - -/* The number of errors left before we stop outputting reloc-specific - explanatory messages. By coincidence, this works nicely together - with the default number of messages you'll get from LD about - "relocation truncated to fit" messages before you get an - "additional relocation overflows omitted from the output". */ -static int additional_relocation_error_msg_count = 10; - -/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was - copied, for further comments. */ - -static bfd_boolean -cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, - 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) -{ - struct elf_cris_link_hash_table * htab; - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_vma *local_got_offsets; - asection *sgot; - asection *splt; - asection *sreloc; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; - asection *srelgot; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - dynobj = elf_hash_table (info)->dynobj; - local_got_offsets = elf_local_got_offsets (input_bfd); - symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - relend = relocs + input_section->reloc_count; - - sgot = NULL; - splt = NULL; - sreloc = NULL; - srelgot = NULL; - - if (dynobj != NULL) - { - splt = bfd_get_linker_section (dynobj, ".plt"); - sgot = bfd_get_linker_section (dynobj, ".got"); - } - - for (rel = relocs; rel < relend; rel ++) - { - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - bfd_vma relocation; - bfd_reloc_status_type r; - const char *symname = NULL; - enum elf_cris_reloc_type r_type; - - r_type = ELF32_R_TYPE (rel->r_info); - - if ( r_type == R_CRIS_GNU_VTINHERIT - || r_type == R_CRIS_GNU_VTENTRY) - continue; - - r_symndx = ELF32_R_SYM (rel->r_info); - howto = cris_elf_howto_table + r_type; - h = NULL; - sym = NULL; - sec = NULL; - - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections [r_symndx]; - relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); - - symname = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (symname == NULL) - symname = bfd_section_name (input_bfd, sec); - } - else - { - bfd_boolean warned; - bfd_boolean unresolved_reloc; - - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, relocation, - unresolved_reloc, warned); - - symname = h->root.root.string; - - if (unresolved_reloc - /* Perhaps we should detect the cases that - sec->output_section is expected to be NULL like i386 and - m68k, but apparently (and according to elfxx-ia64.c) all - valid cases are where the symbol is defined in a shared - object which we link dynamically against. This includes - PLT relocs for which we've created a PLT entry and other - relocs for which we're prepared to create dynamic - relocations. - - For now, new situations cause us to just err when - sec->output_offset is NULL but the object with the symbol - is *not* dynamically linked against. Thus this will - automatically remind us so we can see if there are other - valid cases we need to revisit. */ - && (sec->owner->flags & DYNAMIC) != 0) - relocation = 0; - - else if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - /* Here follow the cases where the relocation value must - be zero (or when further handling is simplified when - zero). I can't claim to understand the various - conditions and they weren't described in the files - where I copied them from (elf32-m68k.c and - elf32-i386.c), but let's mention examples of where - they happen. FIXME: Perhaps define and use a - dynamic_symbol_p function like ia64. - - - When creating a shared library, we can have an - ordinary relocation for a symbol defined in a shared - library (perhaps the one we create). We then make - the relocation value zero, as the value seen now will - be added into the relocation addend in this shared - library, but must be handled only at dynamic-link - time. FIXME: Not sure this example covers the - h->elf_link_hash_flags test, though it's there in - other targets. */ - if (info->shared - && ((! info->symbolic && h->dynindx != -1) - || !h->def_regular) - && (input_section->flags & SEC_ALLOC) != 0 - && (r_type == R_CRIS_8 - || r_type == R_CRIS_16 - || r_type == R_CRIS_32 - || r_type == R_CRIS_8_PCREL - || r_type == R_CRIS_16_PCREL - || r_type == R_CRIS_32_PCREL)) - relocation = 0; - else if (!info->relocatable && unresolved_reloc - && (_bfd_elf_section_offset (output_bfd, info, - input_section, - rel->r_offset) - != (bfd_vma) -1)) - { - _bfd_error_handler - (_("%B, section %A: unresolvable relocation %s against symbol `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - symname); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - } - - if (sec != NULL && discarded_section (sec)) - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - - if (info->relocatable) - continue; - - switch (r_type) - { - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT, - but we require a PLT, and the PLT handling will take care of - filling in the PLT-specific GOT entry. For the GOT offset, - calculate it as we do when filling it in for the .got.plt - section. If we don't have a PLT, punt to GOT handling. */ - if (h != NULL - && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0) - { - asection *sgotplt - = bfd_get_linker_section (dynobj, ".got.plt"); - bfd_vma got_offset; - - BFD_ASSERT (h->dynindx != -1); - BFD_ASSERT (sgotplt != NULL); - - got_offset - = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset; - - relocation = got_offset; - break; - } - - /* We didn't make a PLT entry for this symbol. Maybe everything is - folded into the GOT. Other than folding, this happens when - statically linking PIC code, or when using -Bsymbolic. Check - that we instead have a GOT entry as done for us by - elf_cris_adjust_dynamic_symbol, and drop through into the - ordinary GOT cases. This must not happen for the - executable, because any reference it does to a function - that is satisfied by a DSO must generate a PLT. We assume - these call-specific relocs don't address non-functions. */ - if (h != NULL - && (h->got.offset == (bfd_vma) -1 - || (!info->shared - && !(h->def_regular - || (!h->def_dynamic - && h->root.type == bfd_link_hash_undefweak))))) - { - (*_bfd_error_handler) - ((h->got.offset == (bfd_vma) -1) - ? _("%B, section %A: No PLT nor GOT for relocation %s" - " against symbol `%s'") - : _("%B, section %A: No PLT for relocation %s" - " against symbol `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - (symname != NULL && symname[0] != '\0' - ? symname : _("[whose name is lost]"))); - - /* FIXME: Perhaps blaming input is not the right thing to - do; this is probably an internal error. But it is true - that we didn't like that particular input. */ - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - /* Fall through. */ - - /* The size of the actual relocation is not used here; we only - fill in the GOT table here. */ - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - { - bfd_vma off; - - /* Note that despite using RELA relocations, the .got contents - is always filled in with the link-relative relocation - value; the addend. */ - - if (h != NULL) - { - off = h->got.offset; - BFD_ASSERT (off != (bfd_vma) -1); - - if (!elf_hash_table (info)->dynamic_sections_created - || (! info->shared - && (h->def_regular - || h->type == STT_FUNC - || h->needs_plt)) - || (info->shared - && (info->symbolic || h->dynindx == -1) - && h->def_regular)) - { - /* This wasn't checked above for ! info->shared, but - must hold there if we get here; the symbol must - be defined in the regular program or be undefweak - or be a function or otherwise need a PLT. */ - BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created - || info->shared - || h->def_regular - || h->type == STT_FUNC - || h->needs_plt - || h->root.type == bfd_link_hash_undefweak); - - /* This is actually a static link, or it is a - -Bsymbolic link and the symbol is defined locally, - or is undefweak, or the symbol was forced to be - local because of a version file, or we're not - creating a dynamic object. We must initialize this - entry in the global offset table. Since the offset - must always be a multiple of 4, we use the least - significant bit to record whether we have - initialized it already. - - If this GOT entry should be runtime-initialized, we - will create a .rela.got relocation entry to - initialize the value. This is done in the - finish_dynamic_symbol routine. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, - sgot->contents + off); - h->got.offset |= 1; - } - } - } - else - { - BFD_ASSERT (local_got_offsets != NULL - && local_got_offsets[r_symndx] != (bfd_vma) -1); - - off = 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 generated the necessary reloc. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - - if (info->shared) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - - if (srelgot == NULL) - srelgot - = bfd_get_linker_section (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE); - outrel.r_addend = relocation; - loc = srelgot->contents; - loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - - local_got_offsets[r_symndx] |= 1; - } - } - - relocation = sgot->output_offset + off; - if (rel->r_addend != 0) - { - /* We can't do anything for a relocation which is against - a symbol *plus offset*. GOT holds relocations for - symbols. Make this an error; the compiler isn't - allowed to pass us these kinds of things. */ - if (h == NULL) - (*_bfd_error_handler) - (_("%B, section %A: relocation %s with non-zero addend %d" - " against local symbol"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - rel->r_addend); - else - (*_bfd_error_handler) - (_("%B, section %A: relocation %s with non-zero addend %d" - " against symbol `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - rel->r_addend, - symname[0] != '\0' ? symname : _("[whose name is lost]")); - - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - break; - - case R_CRIS_32_GOTREL: - /* This relocation must only be performed against local symbols. - It's also ok when we link a program and the symbol is either - defined in an ordinary (non-DSO) object or is undefined weak. */ - if (h != NULL - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && !(!info->shared - && (h->def_regular - || (!h->def_dynamic - && h->root.type == bfd_link_hash_undefweak)))) - { - (*_bfd_error_handler) - (_("%B, section %A: relocation %s is" - " not allowed for global symbol: `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - symname); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - /* This can happen if we get a link error with the input ELF - variant mismatching the output variant. Emit an error so - it's noticed if it happens elsewhere. */ - if (sgot == NULL) - { - (*_bfd_error_handler) - (_("%B, section %A: relocation %s with no GOT created"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - /* This relocation is like a PC-relative one, except the - reference point is the location of GOT. Note that - sgot->output_offset is not involved in this calculation. We - always want the start of entire .got section, not the - position after the reserved header. */ - relocation -= sgot->output_section->vma; - break; - - case R_CRIS_32_PLT_PCREL: - /* Relocation is to the entry for this symbol in the - procedure linkage table. */ - - /* Resolve a PLT_PCREL reloc against a local symbol directly, - without using the procedure linkage table. */ - if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) - break; - - if (h->plt.offset == (bfd_vma) -1 - || splt == NULL) - { - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - break; - } - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt.offset); - break; - - case R_CRIS_32_PLT_GOTREL: - /* Like R_CRIS_32_PLT_PCREL, but the reference point is the - start of the .got section. See also comment at - R_CRIS_32_GOT. */ - relocation -= sgot->output_section->vma; - - /* Resolve a PLT_GOTREL reloc against a local symbol directly, - without using the procedure linkage table. */ - if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) - break; - - if (h->plt.offset == (bfd_vma) -1 - || splt == NULL) - { - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - break; - } - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt.offset - - sgot->output_section->vma); - break; - - case R_CRIS_8_PCREL: - case R_CRIS_16_PCREL: - case R_CRIS_32_PCREL: - /* If the symbol was local, we need no shlib-specific handling. */ - if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - || h->dynindx == -1) - break; - - /* Fall through. */ - case R_CRIS_8: - case R_CRIS_16: - case R_CRIS_32: - if (info->shared - && r_symndx != STN_UNDEF - && (input_section->flags & SEC_ALLOC) != 0 - && ((r_type != R_CRIS_8_PCREL - && r_type != R_CRIS_16_PCREL - && r_type != R_CRIS_32_PCREL) - || (!info->symbolic - || (h != NULL && !h->def_regular)))) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - bfd_boolean skip, relocate; - - /* When generating a shared object, these relocations - are copied into the output file to be resolved at run - time. */ - - if (sreloc == NULL) - { - sreloc = _bfd_elf_get_dynamic_reloc_section - (dynobj, input_section, /*rela?*/ TRUE); - /* The section should have been created in cris_elf_check_relocs, - but that function will not be called for objects which fail in - cris_elf_merge_private_bfd_data. */ - if (sreloc == NULL) - { - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - - skip = FALSE; - relocate = FALSE; - - outrel.r_offset = - _bfd_elf_section_offset (output_bfd, info, input_section, - rel->r_offset); - if (outrel.r_offset == (bfd_vma) -1) - skip = TRUE; - else if (outrel.r_offset == (bfd_vma) -2 - /* For now, undefined weak symbols with non-default - visibility (yielding 0), like exception info for - discarded sections, will get a R_CRIS_NONE - relocation rather than no relocation, because we - notice too late that the symbol doesn't need a - relocation. */ - || (h != NULL - && h->root.type == bfd_link_hash_undefweak - && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)) - skip = TRUE, relocate = TRUE; - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - - if (skip) - memset (&outrel, 0, sizeof outrel); - /* h->dynindx may be -1 if the symbol was marked to - become local. */ - else if (h != NULL - && ((! info->symbolic && h->dynindx != -1) - || !h->def_regular)) - { - BFD_ASSERT (h->dynindx != -1); - outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); - outrel.r_addend = relocation + rel->r_addend; - } - else - { - outrel.r_addend = relocation + rel->r_addend; - - if (r_type == R_CRIS_32) - { - relocate = TRUE; - outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE); - } - else - { - long indx; - - if (bfd_is_abs_section (sec)) - indx = 0; - else if (sec == NULL || sec->owner == NULL) - { - bfd_set_error (bfd_error_bad_value); - return 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. */ - osec = sec->output_section; - indx = elf_section_data (osec)->dynindx; - if (indx == 0) - { - osec = htab->root.text_index_section; - indx = elf_section_data (osec)->dynindx; - } - BFD_ASSERT (indx != 0); - } - - outrel.r_info = ELF32_R_INFO (indx, r_type); - } - } - - loc = sreloc->contents; - loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - - /* This reloc will be computed at runtime, so there's no - need to do anything now, except for R_CRIS_32 relocations - that have been turned into R_CRIS_RELATIVE. */ - if (!relocate) - continue; - } - - break; - - case R_CRIS_16_DTPREL: - case R_CRIS_32_DTPREL: - /* This relocation must only be performed against local - symbols, or to sections that are not loadable. It's also - ok when we link a program and the symbol is defined in an - ordinary (non-DSO) object (if it's undefined there, we've - already seen an error). */ - if (h != NULL - && (input_section->flags & SEC_ALLOC) != 0 - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && (info->shared - || (!h->def_regular - && h->root.type != bfd_link_hash_undefined))) - { - (*_bfd_error_handler) - ((h->root.type == bfd_link_hash_undefined) - /* We shouldn't get here for GCC-emitted code. */ - ? _("%B, section %A: relocation %s has an undefined" - " reference to `%s', perhaps a declaration mixup?") - : ("%B, section %A: relocation %s is" - " not allowed for `%s', a global symbol with default" - " visibility, perhaps a declaration mixup?"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - symname != NULL && symname[0] != '\0' - ? symname : _("[whose name is lost]")); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - BFD_ASSERT ((input_section->flags & SEC_ALLOC) == 0 - || htab->dtpmod_refcount != 0); - - /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't - already done so. Note that we do this in .got.plt, not - in .got, as .got.plt contains the first part, still the - reloc is against .got, because the linker script directs - (is required to direct) them both into .got. */ - if (htab->dtpmod_refcount > 0 - && (input_section->flags & SEC_ALLOC) != 0) - { - asection *sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); - BFD_ASSERT (sgotplt != NULL); - - if (info->shared) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - - if (srelgot == NULL) - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - loc = srelgot->contents; - loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); - - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 12); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16); - outrel.r_offset = (sgotplt->output_section->vma - + sgotplt->output_offset - + 12); - outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTPMOD); - outrel.r_addend = 0; - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - else - { - /* For an executable, the GOT entry contents is known. */ - bfd_put_32 (output_bfd, (bfd_vma) 1, sgotplt->contents + 12); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16); - } - - /* Reverse the sign to mark that we've emitted the - required GOT entry. */ - htab->dtpmod_refcount = - htab->dtpmod_refcount; - } - - /* The relocation is the offset from the start of the module - TLS block to the (local) symbol. */ - relocation -= elf_hash_table (info)->tls_sec == NULL - ? 0 : elf_hash_table (info)->tls_sec->vma; - break; - - case R_CRIS_32_GD: - if (info->shared) - { - bfd_set_error (bfd_error_invalid_operation); - - /* We've already informed in cris_elf_check_relocs that - this is an error. */ - return FALSE; - } - /* Fall through. */ - - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - if (rel->r_addend != 0) - { - /* We can't do anything for a relocation which is against a - symbol *plus offset*. The GOT holds relocations for - symbols. Make this an error; the compiler isn't allowed - to pass us these kinds of things. */ - (*_bfd_error_handler) - (_("%B, section %A: relocation %s with non-zero addend %d" - " against symbol `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - rel->r_addend, - symname[0] != '\0' ? symname : _("[whose name is lost]")); - - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - if (!info->shared - && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h))) - { - /* Known contents of the GOT. */ - bfd_vma off; - - /* The symbol is defined in the program, so just write - (1, known_tpoffset) into the GOT. */ - relocation -= elf_hash_table (info)->tls_sec->vma; - - if (h != NULL) - { - off = elf_cris_hash_entry (h)->tprel_refcount > 0 - ? h->got.offset + 4 : h->got.offset; - } - else - { - off = local_got_offsets[r_symndx]; - if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)]) - off += 4; - } - - /* We use bit 1 of the offset as a flag for GOT entry with - the R_CRIS_DTP reloc, setting it when we've emitted the - GOT entry and reloc. Bit 0 is used for R_CRIS_32_TPREL - relocs. */ - if ((off & 2) == 0) - { - off &= ~3; - - if (h != NULL) - h->got.offset |= 2; - else - local_got_offsets[r_symndx] |= 2; - - bfd_put_32 (output_bfd, 1, sgot->contents + off); - bfd_put_32 (output_bfd, relocation, sgot->contents + off + 4); - } - else - off &= ~3; - - relocation = sgot->output_offset + off - + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0); - } - else - { - /* Not all parts of the GOT entry are known; emit a real - relocation. */ - bfd_vma off; - - if (h != NULL) - off = elf_cris_hash_entry (h)->tprel_refcount > 0 - ? h->got.offset + 4 : h->got.offset; - else - { - off = local_got_offsets[r_symndx]; - if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)]) - off += 4; - } - - /* See above re bit 1 and bit 0 usage. */ - if ((off & 2) == 0) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - - off &= ~3; - - if (h != NULL) - h->got.offset |= 2; - else - local_got_offsets[r_symndx] |= 2; - - /* Clear the target contents of the GOT (just as a - gesture; it's already cleared on allocation): this - relocation is not like the other dynrelocs. */ - bfd_put_32 (output_bfd, 0, sgot->contents + off); - bfd_put_32 (output_bfd, 0, sgot->contents + off + 4); - - if (srelgot == NULL) - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - - if (h != NULL && h->dynindx != -1) - { - outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_DTP); - relocation = 0; - } - else - { - outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTP); - - /* NULL if we had an error. */ - relocation -= elf_hash_table (info)->tls_sec == NULL - ? 0 : elf_hash_table (info)->tls_sec->vma; - } - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_addend = relocation; - loc = srelgot->contents; - loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); - - /* NULL if we had an error. */ - if (srelgot->contents != NULL) - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - else - off &= ~3; - - relocation = sgot->output_offset + off - + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0); - } - - /* The GOT-relative offset to the GOT entry is the - relocation, or for R_CRIS_32_GD, the actual address of - the GOT entry. */ - break; - - case R_CRIS_32_IE: - if (info->shared) - { - bfd_set_error (bfd_error_invalid_operation); - - /* We've already informed in cris_elf_check_relocs that - this is an error. */ - return FALSE; - } - /* Fall through. */ - - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - if (rel->r_addend != 0) - { - /* We can't do anything for a relocation which is - against a symbol *plus offset*. GOT holds - relocations for symbols. Make this an error; the - compiler isn't allowed to pass us these kinds of - things. */ - (*_bfd_error_handler) - (_("%B, section %A: relocation %s with non-zero addend %d" - " against symbol `%s'"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - rel->r_addend, - symname[0] != '\0' ? symname : _("[whose name is lost]")); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - if (!info->shared - && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h))) - { - /* Known contents of the GOT. */ - bfd_vma off; - - /* The symbol is defined in the program, so just write - the -prog_tls_size+known_tpoffset into the GOT. */ - relocation -= elf_hash_table (info)->tls_sec->vma; - relocation -= elf_hash_table (info)->tls_size; - - if (h != NULL) - off = h->got.offset; - else - off = local_got_offsets[r_symndx]; - - /* Bit 0 is used to mark whether we've emitted the required - entry (and if needed R_CRIS_32_TPREL reloc). Bit 1 - is used similarly for R_CRIS_DTP, see above. */ - if ((off & 1) == 0) - { - off &= ~3; - - if (h != NULL) - h->got.offset |= 1; - else - local_got_offsets[r_symndx] |= 1; - - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - } - else - off &= ~3; - - relocation = sgot->output_offset + off - + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0); - } - else - { - /* Emit a real relocation. */ - bfd_vma off; - - if (h != NULL) - off = h->got.offset; - else - off = local_got_offsets[r_symndx]; - - /* See above re usage of bit 0 and 1. */ - if ((off & 1) == 0) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - - off &= ~3; - - if (h != NULL) - h->got.offset |= 1; - else - local_got_offsets[r_symndx] |= 1; - - if (srelgot == NULL) - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - - if (h != NULL && h->dynindx != -1) - { - outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_32_TPREL); - relocation = 0; - } - else - { - outrel.r_info = ELF32_R_INFO (0, R_CRIS_32_TPREL); - - /* NULL if we had an error. */ - relocation -= elf_hash_table (info)->tls_sec == NULL - ? 0 : elf_hash_table (info)->tls_sec->vma; - } - - /* Just "define" the initial contents in some - semi-logical way. */ - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_addend = relocation; - loc = srelgot->contents; - loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); - /* NULL if we had an error. */ - if (srelgot->contents != NULL) - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - else - off &= ~3; - - relocation = sgot->output_offset + off - + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0); - } - - /* The GOT-relative offset to the GOT entry is the relocation, - or for R_CRIS_32_GD, the actual address of the GOT entry. */ - break; - - case R_CRIS_16_TPREL: - case R_CRIS_32_TPREL: - /* This relocation must only be performed against symbols - defined in an ordinary (non-DSO) object. */ - if (info->shared) - { - bfd_set_error (bfd_error_invalid_operation); - - /* We've already informed in cris_elf_check_relocs that - this is an error. */ - return FALSE; - } - - if (h != NULL - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && !(h->def_regular || ELF_COMMON_DEF_P (h)) - /* If it's undefined, then an error message has already - been emitted. */ - && h->root.type != bfd_link_hash_undefined) - { - (*_bfd_error_handler) - (_("%B, section %A: relocation %s is" - " not allowed for symbol: `%s'" - " which is defined outside the program," - " perhaps a declaration mixup?"), - input_bfd, - input_section, - cris_elf_howto_table[r_type].name, - symname); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - /* NULL if we had an error. */ - relocation -= elf_hash_table (info)->tls_sec == NULL - ? 0 - : (elf_hash_table (info)->tls_sec->vma - + elf_hash_table (info)->tls_size); - - /* The TLS-relative offset is the relocation. */ - break; - - default: - BFD_FAIL (); - return FALSE; - } - - r = cris_final_link_relocate (howto, input_bfd, input_section, - contents, rel, relocation); - - if (r != bfd_reloc_ok) - { - const char * msg = (const char *) NULL; - - switch (r) - { - case bfd_reloc_overflow: - r = info->callbacks->reloc_overflow - (info, (h ? &h->root : NULL), symname, howto->name, - (bfd_vma) 0, input_bfd, input_section, rel->r_offset); - if (additional_relocation_error_msg_count > 0) - { - additional_relocation_error_msg_count--; - switch (r_type) - { - case R_CRIS_16_GOTPLT: - case R_CRIS_16_GOT: - - /* Not just TLS is involved here, so we make - generation and message depend on -fPIC/-fpic - only. */ - case R_CRIS_16_GOT_TPREL: - case R_CRIS_16_GOT_GD: - (*_bfd_error_handler) - (_("(too many global variables for -fpic:" - " recompile with -fPIC)")); - break; - - case R_CRIS_16_TPREL: - case R_CRIS_16_DTPREL: - (*_bfd_error_handler) - (_("(thread-local data too big for -fpic or" - " -msmall-tls: recompile with -fPIC or" - " -mno-small-tls)")); - break; - - /* No known cause for overflow for other relocs. */ - default: - break; - } - } - break; - - case bfd_reloc_undefined: - r = info->callbacks->undefined_symbol - (info, symname, input_bfd, input_section, rel->r_offset, - TRUE); - break; - - case bfd_reloc_outofrange: - msg = _("internal error: out of range error"); - break; - - case bfd_reloc_notsupported: - msg = _("internal error: unsupported relocation error"); - break; - - case bfd_reloc_dangerous: - msg = _("internal error: dangerous relocation"); - break; - - default: - msg = _("internal error: unknown error"); - break; - } - - if (msg) - r = info->callbacks->warning - (info, msg, symname, input_bfd, input_section, rel->r_offset); - - if (! r) - return FALSE; - } - } - - return TRUE; -} - -/* Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ - -static bfd_boolean -elf_cris_finish_dynamic_symbol (bfd *output_bfd, - struct bfd_link_info *info, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - struct elf_cris_link_hash_table * htab; - bfd *dynobj; - - /* Where in the plt entry to put values. */ - int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16; - - /* What offset to add to the distance to the first PLT entry for the - value at plt_off3. */ - int plt_off3_value_bias = 4; - - /* Where in the PLT entry the call-dynlink-stub is (happens to be same - for PIC and non-PIC for v32 and pre-v32). */ - int plt_stub_offset = 8; - int plt_entry_size = PLT_ENTRY_SIZE; - const bfd_byte *plt_entry = elf_cris_plt_entry; - const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - /* Adjust the various PLT entry offsets. */ - if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32) - { - plt_off2 = 14; - plt_off3 = 20; - plt_off3_value_bias = -2; - plt_stub_offset = 12; - plt_entry_size = PLT_ENTRY_SIZE_V32; - plt_entry = elf_cris_plt_entry_v32; - plt_pic_entry = elf_cris_pic_plt_entry_v32; - } - - dynobj = elf_hash_table (info)->dynobj; - - if (h->plt.offset != (bfd_vma) -1) - { - asection *splt; - asection *sgotplt; - asection *srela; - bfd_vma got_base; - - bfd_vma gotplt_offset - = elf_cris_hash_entry (h)->gotplt_offset; - Elf_Internal_Rela rela; - bfd_byte *loc; - bfd_boolean has_gotplt = gotplt_offset != 0; - - /* Get the index in the .rela.plt relocations for the .got.plt - entry that corresponds to this symbol. - We have to count backwards here, and the result is only valid - as an index into .rela.plt. We also have to undo the effect - of the R_CRIS_DTPMOD entry at .got index 3 (offset 12 into - .got.plt) for which gotplt_offset is adjusted, because while - that entry goes into .got.plt, its relocation goes into - .rela.got, not .rela.plt. (It's not PLT-specific; not to be - processed as part of the runtime lazy .rela.plt relocation). - FIXME: There be literal constants here... */ - bfd_vma rela_plt_index - = (htab->dtpmod_refcount != 0 - ? gotplt_offset/4 - 2 - 3 : gotplt_offset/4 - 3); - - /* Get the offset into the .got table of the entry that corresponds - to this function. Note that we embed knowledge that "incoming" - .got goes after .got.plt in the output without padding (pointer - aligned). However, that knowledge is present in several other - places too. */ - bfd_vma got_offset - = (has_gotplt - ? gotplt_offset - : h->got.offset + htab->next_gotplt_entry); - - /* This symbol has an entry in the procedure linkage table. Set it - up. */ - - BFD_ASSERT (h->dynindx != -1); - - splt = bfd_get_linker_section (dynobj, ".plt"); - sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); - srela = bfd_get_linker_section (dynobj, ".rela.plt"); - BFD_ASSERT (splt != NULL && sgotplt != NULL - && (! has_gotplt || srela != NULL)); - - got_base = sgotplt->output_section->vma + sgotplt->output_offset; - - /* Fill in the entry in the procedure linkage table. */ - if (! info->shared) - { - memcpy (splt->contents + h->plt.offset, plt_entry, - plt_entry_size); - - /* We need to enter the absolute address of the GOT entry here. */ - bfd_put_32 (output_bfd, got_base + got_offset, - splt->contents + h->plt.offset + plt_off1); - } - else - { - memcpy (splt->contents + h->plt.offset, plt_pic_entry, - plt_entry_size); - bfd_put_32 (output_bfd, got_offset, - splt->contents + h->plt.offset + plt_off1); - } - - /* Fill in the plt entry and make a relocation, if this is a "real" - PLT entry. */ - if (has_gotplt) - { - /* Fill in the offset to the reloc table. */ - bfd_put_32 (output_bfd, - rela_plt_index * sizeof (Elf32_External_Rela), - splt->contents + h->plt.offset + plt_off2); - - /* Fill in the offset to the first PLT entry, where to "jump". */ - bfd_put_32 (output_bfd, - - (h->plt.offset + plt_off3 + plt_off3_value_bias), - splt->contents + h->plt.offset + plt_off3); - - /* Fill in the entry in the global offset table with the address of - the relocating stub. */ - bfd_put_32 (output_bfd, - (splt->output_section->vma - + splt->output_offset - + h->plt.offset - + plt_stub_offset), - sgotplt->contents + got_offset); - - /* Fill in the entry in the .rela.plt section. */ - rela.r_offset = (sgotplt->output_section->vma - + sgotplt->output_offset - + got_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT); - rela.r_addend = 0; - loc = srela->contents + rela_plt_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 alone. */ - sym->st_shndx = SHN_UNDEF; - - /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't - know whether resetting the value is significant; if it really - is, rather than a quirk or bug in the sparc port, then I - believe we'd see this elsewhere. */ - /* If the symbol is weak, we do need to clear the value. - Otherwise, the PLT entry would provide a definition for - the symbol even if the symbol wasn't defined anywhere, - and so the symbol would never be NULL. */ - if (!h->ref_regular_nonweak) - sym->st_value = 0; - } - } - - /* For an ordinary program, we emit .got relocs only for symbols that - are in the dynamic-symbols table and are either defined by the - program or are undefined weak symbols, or are function symbols - where we do not output a PLT: the PLT reloc was output above and all - references to the function symbol are redirected to the PLT. */ - if (h->got.offset != (bfd_vma) -1 - && (elf_cris_hash_entry (h)->reg_got_refcount > 0) - && (info->shared - || (h->dynindx != -1 - && h->plt.offset == (bfd_vma) -1 - && !h->def_regular - && h->root.type != bfd_link_hash_undefweak))) - { - asection *sgot; - asection *srela; - Elf_Internal_Rela rela; - bfd_byte *loc; - bfd_byte *where; - - /* This symbol has an entry in the global offset table. Set it up. */ - - sgot = bfd_get_linker_section (dynobj, ".got"); - srela = bfd_get_linker_section (dynobj, ".rela.got"); - BFD_ASSERT (sgot != NULL && srela != NULL); - - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset - + (h->got.offset &~ (bfd_vma) 1)); - - /* If this is a static link, or it is a -Bsymbolic link and the - symbol is defined locally or was forced to be local because - of a version file, we just want to emit a RELATIVE reloc. - The entry in the global offset table will already have been - initialized in the relocate_section function. */ - where = sgot->contents + (h->got.offset &~ (bfd_vma) 1); - if (! elf_hash_table (info)->dynamic_sections_created - || (info->shared - && (info->symbolic || h->dynindx == -1) - && h->def_regular)) - { - rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE); - rela.r_addend = bfd_get_signed_32 (output_bfd, where); - } - else - { - bfd_put_32 (output_bfd, (bfd_vma) 0, where); - rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT); - rela.r_addend = 0; - } - - loc = srela->contents; - loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - - if (h->needs_copy) - { - asection *s; - Elf_Internal_Rela rela; - bfd_byte *loc; - - /* This symbol needs a copy reloc. Set it up. */ - - BFD_ASSERT (h->dynindx != -1 - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)); - - s = bfd_get_linker_section (dynobj, ".rela.bss"); - BFD_ASSERT (s != NULL); - - rela.r_offset = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY); - rela.r_addend = 0; - loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - - /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ - if (h == elf_hash_table (info)->hdynamic - || h == elf_hash_table (info)->hgot) - sym->st_shndx = SHN_ABS; - - return TRUE; -} - -/* Finish up the dynamic sections. Do *not* emit relocs here, as their - offsets were changed, as part of -z combreloc handling, from those we - computed. */ - -static bfd_boolean -elf_cris_finish_dynamic_sections (bfd *output_bfd, - struct bfd_link_info *info) -{ - bfd *dynobj; - asection *sgot; - asection *sdyn; - - dynobj = elf_hash_table (info)->dynobj; - - sgot = bfd_get_linker_section (dynobj, ".got.plt"); - BFD_ASSERT (sgot != NULL); - sdyn = bfd_get_linker_section (dynobj, ".dynamic"); - - if (elf_hash_table (info)->dynamic_sections_created) - { - asection *splt; - Elf32_External_Dyn *dyncon, *dynconend; - - splt = bfd_get_linker_section (dynobj, ".plt"); - BFD_ASSERT (splt != 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) - { - default: - break; - - case DT_PLTGOT: - s = bfd_get_section_by_name (output_bfd, ".got"); - BFD_ASSERT (s != NULL); - dyn.d_un.d_ptr = s->vma; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_JMPREL: - /* Yes, we *can* have a .plt and no .plt.rela, for instance - if all symbols are found in the .got (not .got.plt). */ - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); - dyn.d_un.d_ptr = s != NULL ? s->vma : 0; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_PLTRELSZ: - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); - if (s == NULL) - dyn.d_un.d_val = 0; - else - dyn.d_un.d_val = s->size; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_RELASZ: - /* The procedure linkage table relocs (DT_JMPREL) should - not be included in the overall relocs (DT_RELA). - Therefore, we override the DT_RELASZ entry here to - make it not include the JMPREL relocs. Since the - linker script arranges for .rela.plt to follow all - other relocation sections, we don't have to worry - about changing the DT_RELA entry. */ - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); - if (s != NULL) - dyn.d_un.d_val -= s->size; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - } - } - - /* Fill in the first entry in the procedure linkage table. */ - if (splt->size > 0) - { - if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32) - { - if (info->shared) - memcpy (splt->contents, elf_cris_pic_plt0_entry_v32, - PLT_ENTRY_SIZE_V32); - else - { - memcpy (splt->contents, elf_cris_plt0_entry_v32, - PLT_ENTRY_SIZE_V32); - bfd_put_32 (output_bfd, - sgot->output_section->vma - + sgot->output_offset + 4, - splt->contents + 4); - - elf_section_data (splt->output_section)->this_hdr.sh_entsize - = PLT_ENTRY_SIZE_V32; - } - } - else - { - if (info->shared) - memcpy (splt->contents, elf_cris_pic_plt0_entry, - PLT_ENTRY_SIZE); - else - { - memcpy (splt->contents, elf_cris_plt0_entry, - PLT_ENTRY_SIZE); - bfd_put_32 (output_bfd, - sgot->output_section->vma - + sgot->output_offset + 4, - splt->contents + 6); - bfd_put_32 (output_bfd, - sgot->output_section->vma - + sgot->output_offset + 8, - splt->contents + 14); - - elf_section_data (splt->output_section)->this_hdr.sh_entsize - = PLT_ENTRY_SIZE; - } - } - } - } - - /* Fill in the first three entries in the global offset table. */ - if (sgot->size > 0) - { - if (sdyn == NULL) - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); - else - bfd_put_32 (output_bfd, - sdyn->output_section->vma + sdyn->output_offset, - sgot->contents); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); - } - - elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; - - return TRUE; -} - -/* Return the section that should be marked against GC for a given - relocation. */ - -static asection * -cris_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) -{ - enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rel->r_info); - if (h != NULL) - switch (r_type) - { - case R_CRIS_GNU_VTINHERIT: - case R_CRIS_GNU_VTENTRY: - return NULL; - - default: - break; - } - - return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); -} - -/* Update the got entry reference counts for the section being removed. */ - -static bfd_boolean -cris_elf_gc_sweep_hook (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - struct elf_cris_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; - bfd *dynobj; - asection *sgot; - asection *srelgot; - - if (info->relocatable) - return TRUE; - - dynobj = elf_hash_table (info)->dynobj; - if (dynobj == NULL) - return TRUE; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - - sgot = bfd_get_linker_section (dynobj, ".got"); - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; rel++) - { - unsigned long r_symndx; - struct elf_link_hash_entry *h = NULL; - bfd_signed_vma got_element_size = 4; - bfd_signed_vma *specific_refcount = NULL; - enum elf_cris_reloc_type r_type; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - 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; - } - - r_type = ELF32_R_TYPE (rel->r_info); - switch (r_type) - { - case R_CRIS_32_GOT: - case R_CRIS_16_GOT: - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - specific_refcount = h != NULL - ? &((struct elf_cris_link_hash_entry *) h)->reg_got_refcount - : &local_got_refcounts[LGOT_REG_NDX (r_symndx)]; - break; - - case R_CRIS_32_GD: - case R_CRIS_32_GOT_GD: - case R_CRIS_16_GOT_GD: - got_element_size = 8; - specific_refcount = h != NULL - ? &((struct elf_cris_link_hash_entry *) h)->dtp_refcount - : &local_got_refcounts[LGOT_DTP_NDX (r_symndx)]; - break; - - case R_CRIS_32_IE: - case R_CRIS_16_GOT_TPREL: - case R_CRIS_32_GOT_TPREL: - specific_refcount = h != NULL - ? &((struct elf_cris_link_hash_entry *) h)->tprel_refcount - : &local_got_refcounts[LGOT_TPREL_NDX (r_symndx)]; - break; - - default: - break; - } - - switch (r_type) - { - case R_CRIS_32_IE: - case R_CRIS_32_GD: - case R_CRIS_16_GOT_TPREL: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_32_GOT_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - if (h != NULL) - { - /* If the counters are 0 when we got here, we've - miscounted somehow somewhere, an internal error. */ - BFD_ASSERT (h->got.refcount > 0); - --h->got.refcount; - - BFD_ASSERT (*specific_refcount > 0); - --*specific_refcount; - if (*specific_refcount == 0) - { - /* We don't need the .got entry any more. */ - sgot->size -= got_element_size; - srelgot->size -= sizeof (Elf32_External_Rela); - } - break; - } - - local_got_reloc: - if (local_got_refcounts != NULL) - { - /* If the counters are 0 when we got here, we've - miscounted somehow somewhere, an internal error. */ - BFD_ASSERT (local_got_refcounts[r_symndx] > 0); - --local_got_refcounts[r_symndx]; - - BFD_ASSERT (*specific_refcount > 0); - --*specific_refcount; - if (*specific_refcount == 0) - { - /* We don't need the .got entry any more. */ - sgot->size -= got_element_size; - if (info->shared) - srelgot->size -= sizeof (Elf32_External_Rela); - } - } - break; - - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - /* For local symbols, treat these like GOT relocs. */ - if (h == NULL) - goto local_got_reloc; - else - /* For global symbols, adjust the reloc-specific refcount. */ - elf_cris_hash_entry (h)->gotplt_refcount--; - /* Fall through. */ - - case R_CRIS_32_PLT_GOTREL: - /* FIXME: We don't garbage-collect away the .got section. */ - if (local_got_refcounts != NULL) - local_got_refcounts[-1]--; - /* Fall through. */ - - case R_CRIS_8: - case R_CRIS_16: - case R_CRIS_32: - case R_CRIS_8_PCREL: - case R_CRIS_16_PCREL: - case R_CRIS_32_PCREL: - case R_CRIS_32_PLT_PCREL: - /* Negate the increment we did in cris_elf_check_relocs. */ - if (h != NULL) - { - if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && h->plt.refcount > 0) - --h->plt.refcount; - } - break; - - case R_CRIS_32_DTPREL: - /* This'd be a .dtpreld entry in e.g. debug info. */ - if ((sec->flags & SEC_ALLOC) == 0) - break; - /* Fall through. */ - case R_CRIS_16_DTPREL: - htab->dtpmod_refcount--; - if (htab->dtpmod_refcount == 0) - htab->next_gotplt_entry -= 8; - BFD_ASSERT (local_got_refcounts != NULL); - local_got_refcounts[-1]--; - break; - - default: - break; - } - } - - return TRUE; -} - -/* The elf_backend_plt_sym_val hook function. */ - -static bfd_vma -cris_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, const asection *plt, - const arelent *rel) -{ - bfd_size_type plt_entry_size; - bfd_size_type pltoffs; - bfd *abfd = plt->owner; - - /* Same for CRIS and CRIS v32; see elf_cris_(|pic_)plt_entry(|_v32)[]. */ - bfd_size_type plt_entry_got_offset = 2; - bfd_size_type plt_sec_size; - bfd_size_type got_vma_for_dyn; - asection *got; - - /* FIXME: the .got section should be readily available also when - we're not linking. */ - if ((got = bfd_get_section_by_name (abfd, ".got")) == NULL) - return (bfd_vma) -1; - - plt_sec_size = bfd_section_size (plt->owner, plt); - plt_entry_size - = (bfd_get_mach (abfd) == bfd_mach_cris_v32 - ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE); - - /* Data in PLT is GOT-relative for DYN, but absolute for EXE. */ - got_vma_for_dyn = (abfd->flags & EXEC_P) ? 0 : got->vma; - - /* Because we can have merged GOT entries; a single .got entry for - both GOT and the PLT part of the GOT (.got.plt), the index of the - reloc in .rela.plt is not the same as the index in the PLT. - Instead, we have to hunt down the GOT offset in the PLT that - corresponds to that of this reloc. Unfortunately, we will only - be called for the .rela.plt relocs, so we'll miss synthetic - symbols for .plt entries with merged GOT entries. (FIXME: - fixable by providing our own bfd_elf32_get_synthetic_symtab. - Doesn't seem worthwile at time of this writing.) FIXME: we've - gone from O(1) to O(N) (N number of PLT entries) for finding each - PLT address. Shouldn't matter in practice though. */ - - for (pltoffs = plt_entry_size; - pltoffs < plt_sec_size; - pltoffs += plt_entry_size) - { - bfd_size_type got_offset; - bfd_byte gotoffs_raw[4]; - - if (!bfd_get_section_contents (abfd, (asection *) plt, gotoffs_raw, - pltoffs + plt_entry_got_offset, - sizeof (gotoffs_raw))) - return (bfd_vma) -1; - - got_offset = bfd_get_32 (abfd, gotoffs_raw); - if (got_offset + got_vma_for_dyn == rel->address) - return plt->vma + pltoffs; - } - - /* While it's tempting to BFD_ASSERT that we shouldn't get here, - that'd not be graceful behavior for invalid input. */ - return (bfd_vma) -1; -} - -/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT - entry but we found we will not create any. Called when we find we will - not have any PLT for this symbol, by for example - elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link, - or elf_cris_size_dynamic_sections if no dynamic sections will be - created (we're only linking static objects). */ - -static bfd_boolean -elf_cris_adjust_gotplt_to_got (struct elf_cris_link_hash_entry *h, void * p) -{ - struct bfd_link_info *info = (struct bfd_link_info *) p; - - /* A GOTPLT reloc, when activated, is supposed to be included into - the PLT refcount. */ - BFD_ASSERT (h->gotplt_refcount == 0 - || h->gotplt_refcount <= h->root.plt.refcount); - - /* If nobody wanted a GOTPLT with this symbol, we're done. */ - if (h->gotplt_refcount <= 0) - return TRUE; - - if (h->reg_got_refcount > 0) - { - /* There's a GOT entry for this symbol. Just adjust the refcounts. - Probably not necessary at this stage, but keeping them accurate - helps avoiding surprises later. */ - h->root.got.refcount += h->gotplt_refcount; - h->reg_got_refcount += h->gotplt_refcount; - h->gotplt_refcount = 0; - } - else - { - /* No GOT entry for this symbol. We need to create one. */ - bfd *dynobj = elf_hash_table (info)->dynobj; - asection *sgot; - asection *srelgot; - - BFD_ASSERT (dynobj != NULL); - sgot = bfd_get_linker_section (dynobj, ".got"); - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - - /* Put accurate refcounts there. */ - h->root.got.refcount += h->gotplt_refcount; - h->reg_got_refcount = h->gotplt_refcount; - - h->gotplt_refcount = 0; - - /* We always have a .got and a .rela.got section if there were - GOTPLT relocs in input. */ - BFD_ASSERT (sgot != NULL && srelgot != NULL); - - /* Allocate space in the .got section. */ - sgot->size += 4; - - /* Allocate relocation space. */ - srelgot->size += sizeof (Elf32_External_Rela); - } - - return TRUE; -} - -/* Try to fold PLT entries with GOT entries. There are two cases when we - want to do this: - - - When all PLT references are GOTPLT references, and there are GOT - references, and this is not the executable. We don't have to - generate a PLT at all. - - - When there are both (ordinary) PLT references and GOT references, - and this isn't the executable. - We want to make the PLT reference use the ordinary GOT entry rather - than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry, - since the GOT entry will have to be resolved at startup anyway. - - Though the latter case is handled when room for the PLT is allocated, - not here. - - By folding into the GOT, we may need a round-trip to a PLT in the - executable for calls, a loss in performance. Still, losing a - reloc is a win in size and at least in start-up time. - - Note that this function is called before symbols are forced local by - version scripts. The differing cases are handled by - elf_cris_hide_symbol. */ - -static bfd_boolean -elf_cris_try_fold_plt_to_got (struct elf_cris_link_hash_entry *h, void * p) -{ - struct bfd_link_info *info = (struct bfd_link_info *) p; - - /* If there are no GOT references for this symbol, we can't fold any - other reference so there's nothing to do. Likewise if there are no - PLT references; GOTPLT references included. */ - if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0) - return TRUE; - - /* GOTPLT relocs are supposed to be included into the PLT refcount. */ - BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount); - - if (h->gotplt_refcount == h->root.plt.refcount) - { - /* The only PLT references are GOTPLT references, and there are GOT - references. Convert PLT to GOT references. */ - if (! elf_cris_adjust_gotplt_to_got (h, info)) - return FALSE; - - /* Clear the PLT references, so no PLT will be created. */ - h->root.plt.offset = (bfd_vma) -1; - } - - return TRUE; -} - -/* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc - to use a GOT entry (and create one) rather than requiring a GOTPLT - entry. */ - -static void -elf_cris_hide_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h, - bfd_boolean force_local) -{ - elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info); - - _bfd_elf_link_hash_hide_symbol (info, h, force_local); -} - -/* 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 -elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct elf_cris_link_hash_table * htab; - bfd *dynobj; - asection *s; - bfd_size_type plt_entry_size; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - dynobj = elf_hash_table (info)->dynobj; - - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && (h->needs_plt - || h->u.weakdef != NULL - || (h->def_dynamic - && h->ref_regular - && !h->def_regular))); - - plt_entry_size - = (bfd_get_mach (dynobj) == bfd_mach_cris_v32 - ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE); - - /* If this is a function, put it in the procedure linkage table. We - will fill in the contents of the procedure linkage table later, - when we know the address of the .got section. */ - if (h->type == STT_FUNC - || h->needs_plt) - { - /* If we link a program (not a DSO), we'll get rid of unnecessary - PLT entries; we point to the actual symbols -- even for pic - relocs, because a program built with -fpic should have the same - result as one built without -fpic, specifically considering weak - symbols. - FIXME: m68k and i386 differ here, for unclear reasons. */ - if (! info->shared - && !h->def_dynamic) - { - /* This case can occur if we saw a PLT reloc in an input file, - but the symbol was not defined by a dynamic object. In such - a case, we don't actually need to build a procedure linkage - table, and we can just do an absolute or PC reloc instead, or - change a .got.plt index to a .got index for GOTPLT relocs. */ - BFD_ASSERT (h->needs_plt); - h->needs_plt = 0; - h->plt.offset = (bfd_vma) -1; - return - elf_cris_adjust_gotplt_to_got ((struct - elf_cris_link_hash_entry *) h, - info); - } - - /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT; - where a pointer-equivalent symbol was unimportant (i.e. more - like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid - of the PLT. We can't for the executable, because the GOT - entries will point to the PLT there (and be constant). */ - if (info->shared - && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*) - h, info)) - return FALSE; - - /* GC or folding may have rendered this entry unused. */ - if (h->plt.refcount <= 0) - { - h->needs_plt = 0; - h->plt.offset = (bfd_vma) -1; - return TRUE; - } - - /* Make sure this symbol is output as a dynamic symbol. */ - if (h->dynindx == -1) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - s = bfd_get_linker_section (dynobj, ".plt"); - BFD_ASSERT (s != NULL); - - /* If this is the first .plt entry, make room for the special - first entry. */ - if (s->size == 0) - s->size += 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. */ - if (!info->shared - && !h->def_regular) - { - h->root.u.def.section = s; - h->root.u.def.value = s->size; - } - - /* If there's already a GOT entry, use that, not a .got.plt. A - GOT field still has a reference count when we get here; it's - not yet changed to an offset. We can't do this for an - executable, because then the reloc associated with the PLT - would get a non-PLT reloc pointing to the PLT. FIXME: Move - this to elf_cris_try_fold_plt_to_got. */ - if (info->shared && h->got.refcount > 0) - { - h->got.refcount += h->plt.refcount; - - /* Mark the PLT offset to use the GOT entry by setting the low - bit in the plt offset; it is always a multiple of - plt_entry_size (which is at least a multiple of 2). */ - BFD_ASSERT ((s->size % plt_entry_size) == 0); - - /* Change the PLT refcount to an offset. */ - h->plt.offset = s->size; - - /* By not setting gotplt_offset (i.e. it remains at 0), we signal - that the got entry should be used instead. */ - BFD_ASSERT (((struct elf_cris_link_hash_entry *) - h)->gotplt_offset == 0); - - /* Make room for this entry. */ - s->size += plt_entry_size; - - return TRUE; - } - - /* No GOT reference for this symbol; prepare for an ordinary PLT. */ - h->plt.offset = s->size; - - /* Make room for this entry. */ - s->size += plt_entry_size; - - /* We also need to make an entry in the .got.plt section, which - will be placed in the .got section by the linker script. */ - ((struct elf_cris_link_hash_entry *) h)->gotplt_offset - = htab->next_gotplt_entry; - htab->next_gotplt_entry += 4; - - s = bfd_get_linker_section (dynobj, ".got.plt"); - BFD_ASSERT (s != NULL); - s->size += 4; - - /* We also need to make an entry in the .rela.plt section. */ - - s = bfd_get_linker_section (dynobj, ".rela.plt"); - BFD_ASSERT (s != NULL); - s->size += sizeof (Elf32_External_Rela); - - return TRUE; - } - - /* Reinitialize the plt offset now that it is not used as a reference - count any more. */ - h->plt.offset = (bfd_vma) -1; - - /* 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; - 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; - - /* 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. */ - - s = bfd_get_linker_section (dynobj, ".dynbss"); - BFD_ASSERT (s != NULL); - - /* We must generate a R_CRIS_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; - - srel = bfd_get_linker_section (dynobj, ".rela.bss"); - BFD_ASSERT (srel != NULL); - srel->size += sizeof (Elf32_External_Rela); - h->needs_copy = 1; - } - - return _bfd_elf_adjust_dynamic_copy (h, s); -} - -/* Adjust our "subclass" elements for an indirect symbol. */ - -static void -elf_cris_copy_indirect_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *dir, - struct elf_link_hash_entry *ind) -{ - struct elf_cris_link_hash_entry *edir, *eind; - - edir = (struct elf_cris_link_hash_entry *) dir; - eind = (struct elf_cris_link_hash_entry *) ind; - - /* Only indirect symbols are replaced; we're not interested in - updating any of EIND's fields for other symbols. */ - if (eind->root.root.type != bfd_link_hash_indirect) - { - /* Still, we need to copy flags for e.g. weak definitions. */ - _bfd_elf_link_hash_copy_indirect (info, dir, ind); - return; - } - - BFD_ASSERT (edir->gotplt_offset == 0 || eind->gotplt_offset == 0); - -#define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z -#define XMOVE(F) XMOVOPZ (F, +=, 0) - if (eind->pcrel_relocs_copied != NULL) - { - if (edir->pcrel_relocs_copied != NULL) - { - struct elf_cris_pcrel_relocs_copied **pp; - struct elf_cris_pcrel_relocs_copied *p; - - /* Add reloc counts against the indirect sym to the direct sym - list. Merge any entries against the same section. */ - for (pp = &eind->pcrel_relocs_copied; *pp != NULL;) - { - struct elf_cris_pcrel_relocs_copied *q; - p = *pp; - for (q = edir->pcrel_relocs_copied; q != NULL; q = q->next) - if (q->section == p->section) - { - q->count += p->count; - *pp = p->next; - break; - } - if (q == NULL) - pp = &p->next; - } - *pp = edir->pcrel_relocs_copied; - } - XMOVOPZ (pcrel_relocs_copied, =, NULL); - } - XMOVE (gotplt_refcount); - XMOVE (gotplt_offset); - XMOVE (reg_got_refcount); - XMOVE (tprel_refcount); - XMOVE (dtp_refcount); -#undef XMOVE -#undef XMOVOPZ - - _bfd_elf_link_hash_copy_indirect (info, dir, ind); -} - -/* Look through the relocs for a section during the first phase. */ - -static bfd_boolean -cris_elf_check_relocs (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - struct elf_cris_link_hash_table * htab; - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_signed_vma *local_got_refcounts; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - asection *sgot; - asection *srelgot; - asection *sreloc; - - if (info->relocatable) - return TRUE; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - dynobj = elf_hash_table (info)->dynobj; - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - - sgot = NULL; - srelgot = NULL; - sreloc = NULL; - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - struct elf_link_hash_entry *h; - unsigned long r_symndx; - enum elf_cris_reloc_type r_type; - bfd_signed_vma got_element_size = 4; - unsigned long r_symndx_lgot = INT_MAX; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - { - h = NULL; - r_symndx_lgot = LGOT_REG_NDX (r_symndx); - } - 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; - } - - r_type = ELF32_R_TYPE (rel->r_info); - - /* Some relocs require linker-created sections; we need to hang them - on the first input bfd we found that contained dynamic relocs. */ - switch (r_type) - { - case R_CRIS_32_DTPREL: - if ((sec->flags & SEC_ALLOC) == 0) - /* This'd be a .dtpreld entry in e.g. debug info. We have - several different switch statements below, but none of - that is needed; we need no preparations for resolving - R_CRIS_32_DTPREL into a non-allocated section (debug - info), so let's just move on to the next - relocation. */ - continue; - /* Fall through. */ - case R_CRIS_16_DTPREL: - /* The first .got.plt entry is right after the R_CRIS_DTPMOD - entry at index 3. */ - if (htab->dtpmod_refcount == 0) - htab->next_gotplt_entry += 8; - - htab->dtpmod_refcount++; - /* Fall through. */ - - case R_CRIS_32_IE: - case R_CRIS_32_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - case R_CRIS_32_GOTREL: - case R_CRIS_32_PLT_GOTREL: - case R_CRIS_32_PLT_PCREL: - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - if (dynobj == NULL) - { - elf_hash_table (info)->dynobj = dynobj = abfd; - - /* We could handle this if we can get a handle on the - output bfd in elf_cris_adjust_dynamic_symbol. Failing - that, we must insist on dynobj being a specific mach. */ - if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32) - { - (*_bfd_error_handler) - (_("%B, section %A:\n v10/v32 compatible object %s" - " must not contain a PIC relocation"), - abfd, sec); - return FALSE; - } - - /* Create the .got section, so we can assume it's always - present whenever there's a dynobj. */ - if (!_bfd_elf_create_got_section (dynobj, info)) - return FALSE; - } - - if (sgot == NULL) - sgot = bfd_get_linker_section (dynobj, ".got"); - - if (local_got_refcounts == NULL) - { - bfd_size_type amt; - - /* We use index local_got_refcounts[-1] to count all - GOT-relative relocations that do not have explicit - GOT entries. */ - amt = LGOT_ALLOC_NELTS_FOR (symtab_hdr->sh_info) + 1; - amt *= sizeof (bfd_signed_vma); - local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt)); - if (local_got_refcounts == NULL) - return FALSE; - - local_got_refcounts++; - elf_local_got_refcounts (abfd) = local_got_refcounts; - } - break; - - default: - break; - } - - /* Some relocs require a global offset table (but perhaps not a - specific GOT entry). */ - switch (r_type) - { - case R_CRIS_16_DTPREL: - case R_CRIS_32_DTPREL: - /* Not requesting .got.rela for an executable: the contents - of the first entry is constant there. For a shared - library, we need .got.rela for the R_CRIS_DTPMOD - relocation at index 3. */ - if (!info->shared) - break; - /* Fall through. */ - - case R_CRIS_32_IE: - case R_CRIS_32_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - /* Fall through. */ - - /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT - entry only for local symbols. Unfortunately, we don't know - until later on if there's a version script that forces the - symbol local. We must have the .rela.got section in place - before we know if the symbol looks global now, so we need - to treat the reloc just like for R_CRIS_16_GOT and - R_CRIS_32_GOT. */ - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - if (srelgot == NULL - && (h != NULL || info->shared)) - { - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - if (srelgot == NULL) - { - flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED - | SEC_READONLY); - srelgot = bfd_make_section_anyway_with_flags (dynobj, - ".rela.got", - flags); - if (srelgot == NULL - || !bfd_set_section_alignment (dynobj, srelgot, 2)) - return FALSE; - } - } - break; - - default: - break; - } - - /* Warn and error for invalid input. */ - switch (r_type) - { - case R_CRIS_32_IE: - case R_CRIS_32_TPREL: - case R_CRIS_16_TPREL: - case R_CRIS_32_GD: - if (info->shared) - { - (*_bfd_error_handler) - (_("%B, section %A:\n relocation %s not valid" - " in a shared object;" - " typically an option mixup, recompile with -fPIC"), - abfd, - sec, - cris_elf_howto_table[r_type].name); - /* Don't return FALSE here; we want messages for all of - these and the error behavior is ungraceful - anyway. */ - } - default: - break; - } - - switch (r_type) - { - case R_CRIS_32_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - /* These are requests for tls_index entries, run-time R_CRIS_DTP. */ - got_element_size = 8; - r_symndx_lgot = LGOT_DTP_NDX (r_symndx); - break; - - case R_CRIS_16_DTPREL: - case R_CRIS_32_DTPREL: - /* These two just request for the constant-index - module-local tls_index-sized GOT entry, which we add - elsewhere. */ - break; - - case R_CRIS_32_IE: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - r_symndx_lgot = LGOT_TPREL_NDX (r_symndx); - - /* Those relocs also require that a DSO is of type - Initial Exec. Like other targets, we don't reset this - flag even if the relocs are GC:ed away. */ - if (info->shared) - info->flags |= DF_STATIC_TLS; - break; - - /* Let's list the other assembler-generated TLS-relocs too, - just to show that they're not forgotten. */ - case R_CRIS_16_TPREL: - case R_CRIS_32_TPREL: - default: - break; - } - - switch (r_type) - { - case R_CRIS_16_GOTPLT: - case R_CRIS_32_GOTPLT: - /* Mark that we need a GOT entry if the PLT entry (and its GOT - entry) is eliminated. We can only do this for a non-local - symbol. */ - if (h != NULL) - { - elf_cris_hash_entry (h)->gotplt_refcount++; - goto handle_gotplt_reloc; - } - /* If h is NULL then this is a local symbol, and we must make a - GOT entry for it, so handle it like a GOT reloc. */ - /* Fall through. */ - - case R_CRIS_32_IE: - case R_CRIS_32_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - /* This symbol requires a global offset table entry. */ - if (h != NULL) - { - if (h->got.refcount == 0) - { - /* Make sure this symbol is output as a dynamic symbol. */ - if (h->dynindx == -1) - { - if (!bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - } - - /* Update the sum of reloc counts for this symbol. */ - h->got.refcount++; - - switch (r_type) - { - case R_CRIS_16_GOT: - case R_CRIS_32_GOT: - if (elf_cris_hash_entry (h)->reg_got_refcount == 0) - { - /* Allocate space in the .got section. */ - sgot->size += got_element_size; - /* Allocate relocation space. */ - srelgot->size += sizeof (Elf32_External_Rela); - } - elf_cris_hash_entry (h)->reg_got_refcount++; - break; - - case R_CRIS_32_GD: - case R_CRIS_16_GOT_GD: - case R_CRIS_32_GOT_GD: - if (elf_cris_hash_entry (h)->dtp_refcount == 0) - { - /* Allocate space in the .got section. */ - sgot->size += got_element_size; - /* Allocate relocation space. */ - srelgot->size += sizeof (Elf32_External_Rela); - } - elf_cris_hash_entry (h)->dtp_refcount++; - break; - - case R_CRIS_32_IE: - case R_CRIS_32_GOT_TPREL: - case R_CRIS_16_GOT_TPREL: - if (elf_cris_hash_entry (h)->tprel_refcount == 0) - { - /* Allocate space in the .got section. */ - sgot->size += got_element_size; - /* Allocate relocation space. */ - srelgot->size += sizeof (Elf32_External_Rela); - } - elf_cris_hash_entry (h)->tprel_refcount++; - break; - - default: - BFD_FAIL (); - break; - } - } - else - { - /* This is a global offset table entry for a local symbol. */ - if (local_got_refcounts[r_symndx_lgot] == 0) - { - sgot->size += got_element_size; - if (info->shared) - { - /* If we are generating a shared object, we need - to output a R_CRIS_RELATIVE reloc so that the - dynamic linker can adjust this GOT entry. - Similarly for non-regular got entries. */ - srelgot->size += sizeof (Elf32_External_Rela); - } - } - /* Update the reloc-specific count. */ - local_got_refcounts[r_symndx_lgot]++; - - /* This one is the sum of all the others. */ - local_got_refcounts[r_symndx]++; - } - break; - - case R_CRIS_16_DTPREL: - case R_CRIS_32_DTPREL: - case R_CRIS_32_GOTREL: - /* This reference requires a global offset table. - FIXME: The actual refcount isn't used currently; the .got - section can't be removed if there were any references in the - input. */ - local_got_refcounts[-1]++; - break; - - handle_gotplt_reloc: - - case R_CRIS_32_PLT_GOTREL: - /* This reference requires a global offset table. */ - local_got_refcounts[-1]++; - /* Fall through. */ - - case R_CRIS_32_PLT_PCREL: - /* This symbol requires a procedure linkage table entry. We - actually build the entry in adjust_dynamic_symbol, - because this might be a case of linking PIC code which is - never referenced by a dynamic object, in which case we - don't need to generate a procedure linkage table entry - after all. */ - - /* Beware: if we'd check for visibility of the symbol here - (and not marking the need for a PLT when non-visible), we'd - get into trouble with keeping handling consistent with - regards to relocs found before definition and GOTPLT - handling. Eliminable PLT entries will be dealt with later - anyway. */ - if (h == NULL) - continue; - - h->needs_plt = 1; - h->plt.refcount++; - break; - - case R_CRIS_8: - case R_CRIS_16: - case R_CRIS_32: - /* Let's help debug shared library creation. Any of these - relocs *can* be used in shared libs, but pages containing - them cannot be shared, so they're not appropriate for - common use. Don't warn for sections we don't care about, - such as debug sections or non-constant sections. We - can't help tables of (global) function pointers, for - example, though they must be emitted in a (writable) data - section to avoid having impure text sections. */ - if (info->shared - && (sec->flags & SEC_ALLOC) != 0 - && (sec->flags & SEC_READONLY) != 0) - { - /* FIXME: How do we make this optionally a warning only? */ - (*_bfd_error_handler) - (_("%B, section %A:\n relocation %s should not" - " be used in a shared object; recompile with -fPIC"), - abfd, - sec, - cris_elf_howto_table[r_type].name); - } - - /* We don't need to handle relocs into sections not going into - the "real" output. */ - if ((sec->flags & SEC_ALLOC) == 0) - break; - - if (h != NULL) - { - h->non_got_ref = 1; - - /* Make sure a plt entry is created for this symbol if it - turns out to be a function defined by a dynamic object. */ - if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) - h->plt.refcount++; - } - - /* If we are creating a shared library and this is not a local - symbol, we need to copy the reloc into the shared library. - However when linking with -Bsymbolic and this is a global - symbol which is defined in an object we are including in the - link (i.e., DEF_REGULAR is set), then we can resolve the - reloc directly. 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 relocs_copied - field of the hash table entry. A similar situation occurs - when creating shared libraries and symbol visibility changes - render the symbol local. */ - - /* No need to do anything if we're not creating a shared object. */ - if (! info->shared) - break; - - /* We may need to create a reloc section in the dynobj and made room - for this reloc. */ - if (sreloc == NULL) - { - sreloc = _bfd_elf_make_dynamic_reloc_section - (sec, dynobj, 2, abfd, /*rela?*/ TRUE); - - if (sreloc == NULL) - return FALSE; - } - - if (sec->flags & SEC_READONLY) - info->flags |= DF_TEXTREL; - - sreloc->size += sizeof (Elf32_External_Rela); - break; - - case R_CRIS_8_PCREL: - case R_CRIS_16_PCREL: - case R_CRIS_32_PCREL: - if (h != NULL) - { - h->non_got_ref = 1; - - /* Make sure a plt entry is created for this symbol if it - turns out to be a function defined by a dynamic object. */ - if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) - h->plt.refcount++; - } - - /* If we are creating a shared library and this is not a local - symbol, we need to copy the reloc into the shared library. - However when linking with -Bsymbolic and this is a global - symbol which is defined in an object we are including in the - link (i.e., DEF_REGULAR is set), then we can resolve the - reloc directly. 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 relocs_copied - field of the hash table entry. A similar situation occurs - when creating shared libraries and symbol visibility changes - render the symbol local. */ - - /* No need to do anything if we're not creating a shared object. */ - if (! info->shared) - break; - - /* We don't need to handle relocs into sections not going into - the "real" output. */ - if ((sec->flags & SEC_ALLOC) == 0) - break; - - /* If the symbol is local, then we know already we can - eliminate the reloc. */ - if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) - break; - - /* If this is with -Bsymbolic and the symbol isn't weak, and - is defined by an ordinary object (the ones we include in - this shared library) then we can also eliminate the - reloc. See comment above for more eliminable cases which - we can't identify at this time. */ - if (info->symbolic - && h->root.type != bfd_link_hash_defweak - && h->def_regular) - break; - - /* We may need to create a reloc section in the dynobj and made room - for this reloc. */ - if (sreloc == NULL) - { - sreloc = _bfd_elf_make_dynamic_reloc_section - (sec, dynobj, 2, abfd, /*rela?*/ TRUE); - - if (sreloc == NULL) - return FALSE; - } - - sreloc->size += sizeof (Elf32_External_Rela); - - /* We count the number of PC relative relocations we have - entered for this symbol, so that we can discard them - again if the symbol is later defined by a regular object. - We know that h is really a pointer to an - elf_cris_link_hash_entry. */ - { - struct elf_cris_link_hash_entry *eh; - struct elf_cris_pcrel_relocs_copied *p; - - eh = elf_cris_hash_entry (h); - - for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) - if (p->section == sec) - break; - - if (p == NULL) - { - p = ((struct elf_cris_pcrel_relocs_copied *) - bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); - if (p == NULL) - return FALSE; - p->next = eh->pcrel_relocs_copied; - eh->pcrel_relocs_copied = p; - p->section = sec; - p->count = 0; - p->r_type = r_type; - } - - ++p->count; - } - break; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_CRIS_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_CRIS_GNU_VTENTRY: - BFD_ASSERT (h != NULL); - if (h != NULL - && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) - return FALSE; - break; - - case R_CRIS_16_TPREL: - case R_CRIS_32_TPREL: - /* Already warned above, when necessary. */ - break; - - default: - /* Other relocs do not appear here. */ - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - - return TRUE; -} - -/* Set the sizes of the dynamic sections. */ - -static bfd_boolean -elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) -{ - struct elf_cris_link_hash_table * htab; - bfd *dynobj; - asection *s; - bfd_boolean plt; - bfd_boolean relocs; - - htab = elf_cris_hash_table (info); - if (htab == NULL) - return FALSE; - - dynobj = elf_hash_table (info)->dynobj; - BFD_ASSERT (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 (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - } - else - { - /* Adjust all expected GOTPLT uses to use a GOT entry instead. */ - elf_cris_link_hash_traverse (htab, elf_cris_adjust_gotplt_to_got, - info); - - /* We may have created entries in the .rela.got section. - However, if we are not creating the dynamic sections, we will - not actually use these entries. Reset the size of .rela.got, - which will cause it to get stripped from the output file - below. */ - s = bfd_get_linker_section (dynobj, ".rela.got"); - if (s != NULL) - s->size = 0; - } - - /* If this is a -Bsymbolic shared link, then we need to discard all PC - relative relocs against symbols defined in a regular object. We - allocated space for them in the check_relocs routine, but we will not - fill them in in the relocate_section routine. We also discard space - for relocs that have become for local symbols due to symbol - visibility changes. For programs, we discard space for relocs for - symbols not referenced by any dynamic object. */ - if (info->shared) - elf_cris_link_hash_traverse (htab, - elf_cris_discard_excess_dso_dynamics, - info); - else - elf_cris_link_hash_traverse (htab, - elf_cris_discard_excess_program_dynamics, - info); - - /* The check_relocs and adjust_dynamic_symbol entry points have - determined the sizes of the various dynamic sections. Allocate - memory for them. */ - plt = FALSE; - relocs = FALSE; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - /* It's OK to base decisions on the section name, because none - of the dynobj section names depend upon the input files. */ - name = bfd_get_section_name (dynobj, s); - - if (strcmp (name, ".plt") == 0) - { - /* Remember whether there is a PLT. */ - plt = s->size != 0; - } - else if (strcmp (name, ".got.plt") == 0) - { - /* The .got.plt contains the .got header as well as the - actual .got.plt contents. The .got header may contain a - R_CRIS_DTPMOD entry at index 3. */ - s->size += htab->dtpmod_refcount != 0 - ? 8 : 0; - } - else if (CONST_STRNEQ (name, ".rela")) - { - if (strcmp (name, ".rela.got") == 0 - && htab->dtpmod_refcount != 0 - && info->shared) - s->size += sizeof (Elf32_External_Rela); - - if (s->size != 0) - { - /* Remember whether there are any reloc sections other - than .rela.plt. */ - if (strcmp (name, ".rela.plt") != 0) - 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 if (! CONST_STRNEQ (name, ".got") - && strcmp (name, ".dynbss") != 0) - { - /* It's not one of our sections, so don't allocate space. */ - continue; - } - - if (s->size == 0) - { - /* 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. We use bfd_zalloc here - in case unused entries are not reclaimed before the section's - contents are written out. This should not happen, but this way - if it does, we will not write out garbage. For reloc sections, - this will make entries have the type R_CRIS_NONE. */ - s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); - if (s->contents == NULL) - return FALSE; - } - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Add some entries to the .dynamic section. We fill in the - values later, in elf_cris_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->shared) - { - if (!add_dynamic_entry (DT_DEBUG, 0)) - return FALSE; - } - - if (plt) - { - 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 (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 ((info->flags & DF_TEXTREL) != 0) - { - if (!add_dynamic_entry (DT_TEXTREL, 0)) - return FALSE; - info->flags |= DF_TEXTREL; - } - } -#undef add_dynamic_entry - - return TRUE; -} - -/* This function is called via elf_cris_link_hash_traverse if we are - creating a shared object. In the -Bsymbolic case, it discards the - space allocated to copy PC relative relocs against symbols which - are defined in regular objects. For the normal non-symbolic case, - we also discard space for relocs that have become local due to - symbol visibility changes. We allocated space for them in the - check_relocs routine, but we won't fill them in in the - relocate_section routine. */ - -static bfd_boolean -elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry *h, - void * inf) -{ - struct elf_cris_pcrel_relocs_copied *s; - struct bfd_link_info *info = (struct bfd_link_info *) inf; - - /* If a symbol has been forced local or we have found a regular - definition for the symbolic link case, then we won't be needing - any relocs. */ - if (h->root.def_regular - && (h->root.forced_local - || info->symbolic)) - { - for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) - { - asection *sreloc - = _bfd_elf_get_dynamic_reloc_section (elf_hash_table (info) - ->dynobj, - s->section, - /*rela?*/ TRUE); - sreloc->size -= s->count * sizeof (Elf32_External_Rela); - } - return TRUE; - } - - /* If we have accounted for PC-relative relocs for read-only - sections, now is the time to warn for them. We can't do it in - cris_elf_check_relocs, because we don't know the status of all - symbols at that time (and it's common to force symbols local - late). */ - - for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) - if ((s->section->flags & SEC_READONLY) != 0) - { - /* FIXME: How do we make this optionally a warning only? */ - (*_bfd_error_handler) - (_("%B, section `%A', to symbol `%s':\n" - " relocation %s should not be used" - " in a shared object; recompile with -fPIC"), - s->section->owner, - s->section, - h->root.root.root.string, - cris_elf_howto_table[s->r_type].name); - - info->flags |= DF_TEXTREL; - } - - return TRUE; -} - -/* This function is called via elf_cris_link_hash_traverse if we are *not* - creating a shared object. We discard space for relocs for symbols put - in the .got, but which we found we do not have to resolve at run-time. */ - -static bfd_boolean -elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry *h, - void * inf) -{ - struct bfd_link_info *info = (struct bfd_link_info *) inf; - - /* If we're not creating a shared library and have a symbol which is - referred to by .got references, but the symbol is defined locally, - (or rather, not defined by a DSO) then lose the reloc for the .got - (don't allocate room for it). Likewise for relocs for something - for which we create a PLT. */ - if (!h->root.def_dynamic - || h->root.plt.refcount > 0) - { - if (h->reg_got_refcount > 0 - /* The size of this section is only valid and in sync with the - various reference counts if we do dynamic; don't decrement it - otherwise. */ - && elf_hash_table (info)->dynamic_sections_created) - { - bfd *dynobj = elf_hash_table (info)->dynobj; - asection *srelgot; - - BFD_ASSERT (dynobj != NULL); - - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - - BFD_ASSERT (srelgot != NULL); - - srelgot->size -= sizeof (Elf32_External_Rela); - } - - /* If the locally-defined symbol isn't used by a DSO, then we don't - have to export it as a dynamic symbol. This was already done for - functions; doing this for all symbols would presumably not - introduce new problems. Of course we don't do this if we're - exporting all dynamic symbols. */ - if (! info->export_dynamic - && h->root.dynindx != -1 - && !h->root.def_dynamic - && !h->root.ref_dynamic) - { - h->root.dynindx = -1; - _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, - h->root.dynstr_index); - } - } - - return TRUE; -} - -/* Reject a file depending on presence and expectation of prefixed - underscores on symbols. */ - -static bfd_boolean -cris_elf_object_p (bfd *abfd) -{ - if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags)) - return FALSE; - - if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)) - return (bfd_get_symbol_leading_char (abfd) == '_'); - else - return (bfd_get_symbol_leading_char (abfd) == 0); -} - -/* Mark presence or absence of leading underscore. Set machine type - flags from mach type. */ - -static void -cris_elf_final_write_processing (bfd *abfd, - bfd_boolean linker ATTRIBUTE_UNUSED) -{ - unsigned long e_flags = elf_elfheader (abfd)->e_flags; - - e_flags &= ~EF_CRIS_UNDERSCORE; - if (bfd_get_symbol_leading_char (abfd) == '_') - e_flags |= EF_CRIS_UNDERSCORE; - - switch (bfd_get_mach (abfd)) - { - case bfd_mach_cris_v0_v10: - e_flags |= EF_CRIS_VARIANT_ANY_V0_V10; - break; - - case bfd_mach_cris_v10_v32: - e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32; - break; - - case bfd_mach_cris_v32: - e_flags |= EF_CRIS_VARIANT_V32; - break; - - default: - _bfd_abort (__FILE__, __LINE__, - _("Unexpected machine number")); - } - - elf_elfheader (abfd)->e_flags = e_flags; -} - -/* Set the mach type from e_flags value. */ - -static bfd_boolean -cris_elf_set_mach_from_flags (bfd *abfd, - unsigned long flags) -{ - switch (flags & EF_CRIS_VARIANT_MASK) - { - case EF_CRIS_VARIANT_ANY_V0_V10: - bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10); - break; - - case EF_CRIS_VARIANT_V32: - bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32); - break; - - case EF_CRIS_VARIANT_COMMON_V10_V32: - bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32); - break; - - default: - /* Since we don't recognize them, we obviously can't support them - with this code; we'd have to require that all future handling - would be optional. */ - bfd_set_error (bfd_error_wrong_format); - return FALSE; - } - - return TRUE; -} - -/* Display the flags field. */ - -static bfd_boolean -cris_elf_print_private_bfd_data (bfd *abfd, void * ptr) -{ - FILE *file = (FILE *) ptr; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - _bfd_elf_print_private_bfd_data (abfd, ptr); - - fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); - - if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE) - fprintf (file, _(" [symbols have a _ prefix]")); - if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK) - == EF_CRIS_VARIANT_COMMON_V10_V32) - fprintf (file, _(" [v10 and v32]")); - if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK) - == EF_CRIS_VARIANT_V32) - fprintf (file, _(" [v32]")); - - fputc ('\n', file); - return TRUE; -} - -/* Don't mix files with and without a leading underscore. */ - -static bfd_boolean -cris_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - int imach, omach; - - if (! _bfd_generic_verify_endian_match (ibfd, obfd)) - return FALSE; - - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return TRUE; - - imach = bfd_get_mach (ibfd); - - if (! elf_flags_init (obfd)) - { - /* This happens when ld starts out with a 'blank' output file. */ - elf_flags_init (obfd) = TRUE; - - /* We ignore the linker-set mach, and instead set it according to - the first input file. This would also happen if we could - somehow filter out the OUTPUT_ARCH () setting from elf.sc. - This allows us to keep the same linker config across - cris(v0..v10) and crisv32. The drawback is that we can't force - the output type, which might be a sane thing to do for a - v10+v32 compatibility object. */ - if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach)) - return FALSE; - } - - if (bfd_get_symbol_leading_char (ibfd) - != bfd_get_symbol_leading_char (obfd)) - { - (*_bfd_error_handler) - (bfd_get_symbol_leading_char (ibfd) == '_' - ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols") - : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"), - ibfd); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - omach = bfd_get_mach (obfd); - - if (imach != omach) - { - /* We can get an incompatible combination only if either is - bfd_mach_cris_v32, and the other one isn't compatible. */ - if ((imach == bfd_mach_cris_v32 - && omach != bfd_mach_cris_v10_v32) - || (omach == bfd_mach_cris_v32 - && imach != bfd_mach_cris_v10_v32)) - { - (*_bfd_error_handler) - ((imach == bfd_mach_cris_v32) - ? _("%B contains CRIS v32 code, incompatible" - " with previous objects") - : _("%B contains non-CRIS-v32 code, incompatible" - " with previous objects"), - ibfd); - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - - /* We don't have to check the case where the input is compatible - with v10 and v32, because the output is already known to be set - to the other (compatible) mach. */ - if (omach == bfd_mach_cris_v10_v32 - && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach)) - return FALSE; - } - - return TRUE; -} - -/* Do side-effects of e_flags copying to obfd. */ - -static bfd_boolean -cris_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - /* Call the base function. */ - if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd)) - return FALSE; - - /* If output is big-endian for some obscure reason, stop here. */ - if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE) - return FALSE; - - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return TRUE; - - /* Do what we really came here for. */ - return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd)); -} - -static enum elf_reloc_type_class -elf_cris_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, - const asection *rel_sec ATTRIBUTE_UNUSED, - const Elf_Internal_Rela *rela) -{ - enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rela->r_info); - switch (r_type) - { - case R_CRIS_RELATIVE: - return reloc_class_relative; - case R_CRIS_JUMP_SLOT: - return reloc_class_plt; - case R_CRIS_COPY: - return reloc_class_copy; - default: - return reloc_class_normal; - } -} - -/* The elf_backend_got_elt_size worker. For one symbol, we can have up to - two GOT entries from three types with two different sizes. We handle - it as a single entry, so we can use the regular offset-calculation - machinery. */ - -static bfd_vma -elf_cris_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - struct elf_link_hash_entry *hr, - bfd *ibfd, - unsigned long symndx) -{ - struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) hr; - bfd_vma eltsiz = 0; - - /* We may have one regular GOT entry or up to two TLS GOT - entries. */ - if (h == NULL) - { - Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; - bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (ibfd); - - BFD_ASSERT (local_got_refcounts != NULL); - - if (local_got_refcounts[LGOT_REG_NDX (symndx)] > 0) - { - /* We can't have a variable referred to both as a regular - variable and through TLS relocs. */ - BFD_ASSERT (local_got_refcounts[LGOT_DTP_NDX (symndx)] == 0 - && local_got_refcounts[LGOT_TPREL_NDX (symndx)] == 0); - return 4; - } - - if (local_got_refcounts[LGOT_DTP_NDX (symndx)] > 0) - eltsiz += 8; - - if (local_got_refcounts[LGOT_TPREL_NDX (symndx)] > 0) - eltsiz += 4; - } - else - { - struct elf_cris_link_hash_entry *hh = elf_cris_hash_entry (h); - if (hh->reg_got_refcount > 0) - { - /* The actual error-on-input is emitted elsewhere. */ - BFD_ASSERT (hh->dtp_refcount == 0 && hh->tprel_refcount == 0); - return 4; - } - - if (hh->dtp_refcount > 0) - eltsiz += 8; - - if (hh->tprel_refcount > 0) - eltsiz += 4; - } - - /* We're only called when h->got.refcount is non-zero, so we must - have a non-zero size. */ - BFD_ASSERT (eltsiz != 0); - return eltsiz; -} - -#define ELF_ARCH bfd_arch_cris -#define ELF_TARGET_ID CRIS_ELF_DATA -#define ELF_MACHINE_CODE EM_CRIS -#define ELF_MAXPAGESIZE 0x2000 - -#define TARGET_LITTLE_SYM bfd_elf32_cris_vec -#define TARGET_LITTLE_NAME "elf32-cris" -#define elf_symbol_leading_char 0 - -#define elf_info_to_howto_rel NULL -#define elf_info_to_howto cris_info_to_howto_rela -#define elf_backend_relocate_section cris_elf_relocate_section -#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook -#define elf_backend_plt_sym_val cris_elf_plt_sym_val -#define elf_backend_check_relocs cris_elf_check_relocs -#define elf_backend_grok_prstatus cris_elf_grok_prstatus -#define elf_backend_grok_psinfo cris_elf_grok_psinfo - -#define elf_backend_can_gc_sections 1 -#define elf_backend_can_refcount 1 - -#define elf_backend_object_p cris_elf_object_p -#define elf_backend_final_write_processing \ - cris_elf_final_write_processing -#define bfd_elf32_bfd_print_private_bfd_data \ - cris_elf_print_private_bfd_data -#define bfd_elf32_bfd_merge_private_bfd_data \ - cris_elf_merge_private_bfd_data -#define bfd_elf32_bfd_copy_private_bfd_data \ - cris_elf_copy_private_bfd_data - -#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup -#define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup - -#define bfd_elf32_bfd_link_hash_table_create \ - elf_cris_link_hash_table_create -#define elf_backend_adjust_dynamic_symbol \ - elf_cris_adjust_dynamic_symbol -#define elf_backend_copy_indirect_symbol \ - elf_cris_copy_indirect_symbol -#define elf_backend_size_dynamic_sections \ - elf_cris_size_dynamic_sections -#define elf_backend_init_index_section _bfd_elf_init_1_index_section -#define elf_backend_finish_dynamic_symbol \ - elf_cris_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections \ - elf_cris_finish_dynamic_sections -#define elf_backend_create_dynamic_sections \ - _bfd_elf_create_dynamic_sections -#define bfd_elf32_bfd_final_link \ - bfd_elf_gc_common_final_link -#define elf_backend_hide_symbol elf_cris_hide_symbol -#define elf_backend_reloc_type_class elf_cris_reloc_type_class - -#define elf_backend_want_got_plt 1 -#define elf_backend_plt_readonly 1 -#define elf_backend_want_plt_sym 0 -#define elf_backend_got_header_size 12 -#define elf_backend_got_elt_size elf_cris_got_elt_size - -/* Later, we my want to optimize RELA entries into REL entries for dynamic - linking and libraries (if it's a win of any significance). Until then, - take the easy route. */ -#define elf_backend_may_use_rel_p 0 -#define elf_backend_may_use_rela_p 1 -#define elf_backend_rela_normal 1 - -#include "elf32-target.h" - -#undef TARGET_LITTLE_SYM -#undef TARGET_LITTLE_NAME -#undef elf_symbol_leading_char - -#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec -#define TARGET_LITTLE_NAME "elf32-us-cris" -#define elf_symbol_leading_char '_' -#undef elf32_bed -#define elf32_bed elf32_us_cris_bed - -#include "elf32-target.h" |