diff options
Diffstat (limited to 'binutils-2.25/bfd/elfxx-tilegx.c')
| -rw-r--r-- | binutils-2.25/bfd/elfxx-tilegx.c | 4439 |
1 files changed, 4439 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/elfxx-tilegx.c b/binutils-2.25/bfd/elfxx-tilegx.c new file mode 100644 index 00000000..c57e38f3 --- /dev/null +++ b/binutils-2.25/bfd/elfxx-tilegx.c @@ -0,0 +1,4439 @@ +/* TILE-Gx-specific support for ELF. + Copyright 2011, 2012, 2013 Free Software Foundation, Inc. + + 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/tilegx.h" +#include "opcode/tilegx.h" +#include "libiberty.h" +#include "elfxx-tilegx.h" + +#define ABI_64_P(abfd) \ + (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64) + +#define TILEGX_ELF_WORD_BYTES(htab) \ + ((htab)->bytes_per_word) + +/* The size of an external RELA relocation. */ +#define TILEGX_ELF_RELA_BYTES(htab) \ + ((htab)->bytes_per_rela) + +/* Both 32-bit and 64-bit tilegx encode this in an identical manner, + so just take advantage of that. */ +#define TILEGX_ELF_R_TYPE(r_info) \ + ((r_info) & 0xFF) + +#define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \ + ((htab)->r_info (in_rel, index, type)) + +#define TILEGX_ELF_R_SYMNDX(htab, r_info) \ + ((htab)->r_symndx(r_info)) + +#define TILEGX_ELF_DTPOFF_RELOC(htab) \ + ((htab)->dtpoff_reloc) + +#define TILEGX_ELF_DTPMOD_RELOC(htab) \ + ((htab)->dtpmod_reloc) + +#define TILEGX_ELF_TPOFF_RELOC(htab) \ + ((htab)->tpoff_reloc) + +#define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \ + ((htab)->put_word (bfd, val, ptr)) + +/* The name of the dynamic interpreter. This is put in the .interp + section. */ + +#define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1" +#define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1" + + +static reloc_howto_type tilegx_elf_howto_table [] = +{ + /* This reloc does nothing. */ + HOWTO (R_TILEGX_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_TILEGX_NONE", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + FALSE), /* pcrel_offset */ +#ifdef BFD64 + /* A 64 bit absolute relocation. */ + HOWTO (R_TILEGX_64, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_64", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffffffffffffULL, /* dst_mask */ + FALSE), /* pcrel_offset */ +#endif + /* A 32 bit absolute relocation. */ + HOWTO (R_TILEGX_32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_32", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit absolute relocation. */ + HOWTO (R_TILEGX_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_TILEGX_16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* An 8 bit absolute relocation. */ + HOWTO (R_TILEGX_8, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_unsigned, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_8", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xff, /* dst_mask */ + FALSE), /* pcrel_offset */ +#ifdef BFD64 + /* A 64 bit pc-relative relocation. */ + HOWTO (R_TILEGX_64_PCREL,/* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_32_PCREL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffffffffffffULL, /* dst_mask */ + TRUE), /* pcrel_offset */ +#endif + /* A 32 bit pc-relative relocation. */ + HOWTO (R_TILEGX_32_PCREL,/* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_32_PCREL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + /* A 16 bit pc-relative relocation. */ + HOWTO (R_TILEGX_16_PCREL,/* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_16_PCREL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + /* An 8 bit pc-relative relocation. */ + HOWTO (R_TILEGX_8_PCREL, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_8_PCREL",/* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + /* A 16 bit relocation without overflow. */ + HOWTO (R_TILEGX_HW0, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW0", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation without overflow. */ + HOWTO (R_TILEGX_HW1, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW1", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation without overflow. */ + HOWTO (R_TILEGX_HW2, /* type */ + 32, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation without overflow. */ + HOWTO (R_TILEGX_HW3, /* type */ + 48, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW3", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation with overflow. */ + HOWTO (R_TILEGX_HW0_LAST, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW0_LAST", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation with overflow. */ + HOWTO (R_TILEGX_HW1_LAST, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW1_LAST", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 16 bit relocation with overflow. */ + HOWTO (R_TILEGX_HW2_LAST, /* type */ + 32, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_HW2_LAST", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + HOWTO (R_TILEGX_COPY, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_COPY", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_GLOB_DAT, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_GLOB_DAT", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_JMP_SLOT, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_JMP_SLOT", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_RELATIVE, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_RELATIVE", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_BROFF_X1, /* type */ + TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 17, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_BROFF_X1", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + -1, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_JUMPOFF_X1, /* type */ + TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 27, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_JUMPOFF_X1", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + -1, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */ + TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 27, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_JUMPOFF_X1_PLT", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + -1, /* dst_mask */ + TRUE), /* pcrel_offset */ + +#define TILEGX_IMM_HOWTO(name, size, bitsize) \ + HOWTO (name, 0, size, bitsize, FALSE, 0, \ + complain_overflow_signed, bfd_elf_generic_reloc, \ + #name, FALSE, 0, -1, FALSE) + +#define TILEGX_UIMM_HOWTO(name, size, bitsize) \ + HOWTO (name, 0, size, bitsize, FALSE, 0, \ + complain_overflow_unsigned, bfd_elf_generic_reloc, \ + #name, FALSE, 0, -1, FALSE) + + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 0, 8), + + TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14), + TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14), + + TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6), + TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6), + + TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 0, 6), + TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 0, 6), + TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 0, 6), + TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 0, 6), + +#define TILEGX_IMM16_HOWTO(name, rshift) \ + HOWTO (name, rshift, 1, 16, FALSE, 0, \ + complain_overflow_dont, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, FALSE) + + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48), + +#define TILEGX_IMM16_HOWTO_LAST(name, rshift) \ + HOWTO (name, rshift, 1, 16, FALSE, 0, \ + complain_overflow_signed, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, FALSE) + + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32), + + /* PC-relative offsets. */ + +#define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \ + HOWTO (name, rshift, 1, 16, TRUE, 0, \ + complain_overflow_dont, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, TRUE) + + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48), + +#define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \ + HOWTO (name, rshift, 1, 16, TRUE, 0, \ + complain_overflow_signed, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, TRUE) + + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32), + + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0), + + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32), + + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16), + + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48), + TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48), + + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0), + + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0), + TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16), + + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16), + TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16), + EMPTY_HOWTO (90), + EMPTY_HOWTO (91), + +#define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \ + HOWTO (name, rshift, 1, 16, FALSE, 0, \ + complain_overflow_dont, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, TRUE) + + TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0), + TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0), + + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32), + TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32), + +#define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \ + HOWTO (name, rshift, 1, 16, FALSE, 0, \ + complain_overflow_signed, bfd_elf_generic_reloc, \ + #name, FALSE, 0, 0xffff, TRUE) + + TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0), + TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0), + TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16), + TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16), + EMPTY_HOWTO (104), + EMPTY_HOWTO (105), + + HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont, + bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64", + FALSE, 0, 0, TRUE), + HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64", + FALSE, 0, -1, TRUE), + HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont, + bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64", + FALSE, 0, 0, TRUE), + + HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont, + bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32", + FALSE, 0, 0, TRUE), + HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield, + bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32", + FALSE, 0, -1, TRUE), + HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont, + bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32", + FALSE, 0, 0, TRUE), + + HOWTO (R_TILEGX_TLS_GD_CALL, /* type */ + TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 27, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed,/* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_TILEGX_TLS_GD_CALL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + -1, /* dst_mask */ + TRUE), /* pcrel_offset */ + + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8), + TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8), +}; + +static reloc_howto_type tilegx_elf_howto_table2 [] = +{ + /* GNU extension to record C++ vtable hierarchy */ + HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_TILEGX_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_TILEGX_GNU_VTENTRY, /* type */ + 0, /* rightshift */ + 4, /* 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_TILEGX_GNU_VTENTRY", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + FALSE), /* pcrel_offset */ + +}; + +/* Map BFD reloc types to TILEGX ELF reloc types. */ + +typedef struct tilegx_reloc_map +{ + bfd_reloc_code_real_type bfd_reloc_val; + unsigned int tilegx_reloc_val; + reloc_howto_type * table; +} reloc_map; + +static const reloc_map tilegx_reloc_map [] = +{ +#define TH_REMAP(bfd, tilegx) \ + { bfd, tilegx, tilegx_elf_howto_table }, + + /* Standard relocations. */ + TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE) + TH_REMAP (BFD_RELOC_64, R_TILEGX_64) + TH_REMAP (BFD_RELOC_32, R_TILEGX_32) + TH_REMAP (BFD_RELOC_16, R_TILEGX_16) + TH_REMAP (BFD_RELOC_8, R_TILEGX_8) + TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL) + TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL) + TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL) + TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL) + +#define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t) + + /* Custom relocations. */ + SIMPLE_REMAP (TILEGX_HW0) + SIMPLE_REMAP (TILEGX_HW1) + SIMPLE_REMAP (TILEGX_HW2) + SIMPLE_REMAP (TILEGX_HW3) + SIMPLE_REMAP (TILEGX_HW0_LAST) + SIMPLE_REMAP (TILEGX_HW1_LAST) + SIMPLE_REMAP (TILEGX_HW2_LAST) + SIMPLE_REMAP (TILEGX_COPY) + SIMPLE_REMAP (TILEGX_GLOB_DAT) + SIMPLE_REMAP (TILEGX_JMP_SLOT) + SIMPLE_REMAP (TILEGX_RELATIVE) + SIMPLE_REMAP (TILEGX_BROFF_X1) + SIMPLE_REMAP (TILEGX_JUMPOFF_X1) + SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT) + SIMPLE_REMAP (TILEGX_IMM8_X0) + SIMPLE_REMAP (TILEGX_IMM8_Y0) + SIMPLE_REMAP (TILEGX_IMM8_X1) + SIMPLE_REMAP (TILEGX_IMM8_Y1) + SIMPLE_REMAP (TILEGX_DEST_IMM8_X1) + SIMPLE_REMAP (TILEGX_MT_IMM14_X1) + SIMPLE_REMAP (TILEGX_MF_IMM14_X1) + SIMPLE_REMAP (TILEGX_MMSTART_X0) + SIMPLE_REMAP (TILEGX_MMEND_X0) + SIMPLE_REMAP (TILEGX_SHAMT_X0) + SIMPLE_REMAP (TILEGX_SHAMT_X1) + SIMPLE_REMAP (TILEGX_SHAMT_Y0) + SIMPLE_REMAP (TILEGX_SHAMT_Y1) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW3) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW3) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE) + SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE) + SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE) + + SIMPLE_REMAP (TILEGX_TLS_DTPMOD64) + SIMPLE_REMAP (TILEGX_TLS_DTPOFF64) + SIMPLE_REMAP (TILEGX_TLS_TPOFF64) + + SIMPLE_REMAP (TILEGX_TLS_DTPMOD32) + SIMPLE_REMAP (TILEGX_TLS_DTPOFF32) + SIMPLE_REMAP (TILEGX_TLS_TPOFF32) + + SIMPLE_REMAP (TILEGX_TLS_GD_CALL) + SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD) + SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD) + SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD) + SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD) + SIMPLE_REMAP (TILEGX_TLS_IE_LOAD) + SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD) + SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD) + SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD) + SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD) + +#undef SIMPLE_REMAP +#undef TH_REMAP + + { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 }, + { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 }, +}; + + + +/* The TILE-Gx linker needs to keep track of the number of relocs that it + decides to copy as dynamic relocs in check_relocs for each symbol. + This is so that it can later discard them if they are found to be + unnecessary. We store the information in a field extending the + regular ELF linker hash table. */ + +struct tilegx_elf_dyn_relocs +{ + struct tilegx_elf_dyn_relocs *next; + + /* The input section of the reloc. */ + asection *sec; + + /* Total number of relocs copied for the input section. */ + bfd_size_type count; + + /* Number of pc-relative relocs copied for the input section. */ + bfd_size_type pc_count; +}; + +/* TILEGX ELF linker hash entry. */ + +struct tilegx_elf_link_hash_entry +{ + struct elf_link_hash_entry elf; + + /* Track dynamic relocs copied for this symbol. */ + struct tilegx_elf_dyn_relocs *dyn_relocs; + +#define GOT_UNKNOWN 0 +#define GOT_NORMAL 1 +#define GOT_TLS_GD 2 +#define GOT_TLS_IE 4 + unsigned char tls_type; +}; + +#define tilegx_elf_hash_entry(ent) \ + ((struct tilegx_elf_link_hash_entry *)(ent)) + +struct _bfd_tilegx_elf_obj_tdata +{ + struct elf_obj_tdata root; + + /* tls_type for each local got entry. */ + char *local_got_tls_type; +}; + +#define _bfd_tilegx_elf_tdata(abfd) \ + ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any) + +#define _bfd_tilegx_elf_local_got_tls_type(abfd) \ + (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type) + +#define is_tilegx_elf(bfd) \ + (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ + && elf_tdata (bfd) != NULL \ + && elf_object_id (bfd) == TILEGX_ELF_DATA) + +#include "elf/common.h" +#include "elf/internal.h" + +struct tilegx_elf_link_hash_table +{ + struct elf_link_hash_table elf; + + int bytes_per_word; + int word_align_power; + int bytes_per_rela; + int dtpmod_reloc; + int dtpoff_reloc; + int tpoff_reloc; + bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma); + bfd_vma (*r_symndx) (bfd_vma); + void (*put_word) (bfd *, bfd_vma, void *); + const char *dynamic_interpreter; + + /* Short-cuts to get to dynamic linker sections. */ + asection *sdynbss; + asection *srelbss; + + /* Whether LE transition has been disabled for some of the + sections. */ + bfd_boolean disable_le_transition; + + /* Small local sym to section mapping cache. */ + struct sym_cache sym_cache; +}; + + +/* Get the Tile ELF linker hash table from a link_info structure. */ +#define tilegx_elf_hash_table(p) \ + (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ + == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL) + +#ifdef BFD64 +static bfd_vma +tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, + bfd_vma rel_index, + bfd_vma type) +{ + return ELF64_R_INFO (rel_index, type); +} + +static bfd_vma +tilegx_elf_r_symndx_64 (bfd_vma r_info) +{ + return ELF64_R_SYM (r_info); +} + +static void +tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr) +{ + bfd_put_64 (abfd, val, ptr); +} +#endif /* BFD64 */ + +static bfd_vma +tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, + bfd_vma rel_index, + bfd_vma type) +{ + return ELF32_R_INFO (rel_index, type); +} + +static bfd_vma +tilegx_elf_r_symndx_32 (bfd_vma r_info) +{ + return ELF32_R_SYM (r_info); +} + +static void +tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr) +{ + bfd_put_32 (abfd, val, ptr); +} + +reloc_howto_type * +tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) +{ + unsigned int i; + + for (i = ARRAY_SIZE (tilegx_reloc_map); --i;) + { + const reloc_map * entry; + + entry = tilegx_reloc_map + i; + + if (entry->bfd_reloc_val == code) + return entry->table + (entry->tilegx_reloc_val + - entry->table[0].type); + } + + return NULL; +} + +reloc_howto_type * +tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < (sizeof (tilegx_elf_howto_table) + / sizeof (tilegx_elf_howto_table[0])); + i++) + if (tilegx_elf_howto_table[i].name != NULL + && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0) + return &tilegx_elf_howto_table[i]; + + return NULL; +} + +void +tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, + arelent *cache_ptr, + Elf_Internal_Rela *dst) +{ + unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info); + + if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD) + cache_ptr->howto = &tilegx_elf_howto_table [r_type]; + else if (r_type - R_TILEGX_GNU_VTINHERIT + <= (unsigned int) R_TILEGX_GNU_VTENTRY) + cache_ptr->howto + = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT]; + else + abort (); +} + +typedef tilegx_bundle_bits (*tilegx_create_func)(int); + +static const tilegx_create_func reloc_to_create_func[] = +{ + /* The first twenty relocation types don't correspond to operands */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + + /* The remaining relocations are used for immediate operands */ + create_BrOff_X1, + create_JumpOff_X1, + create_JumpOff_X1, + create_Imm8_X0, + create_Imm8_Y0, + create_Imm8_X1, + create_Imm8_Y1, + create_Dest_Imm8_X1, + create_MT_Imm14_X1, + create_MF_Imm14_X1, + create_BFStart_X0, + create_BFEnd_X0, + create_ShAmt_X0, + create_ShAmt_X1, + create_ShAmt_Y0, + create_ShAmt_Y1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + NULL, + NULL, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, + create_Imm16_X0, + create_Imm16_X1, +}; + +static void +tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) +{ + const struct elf_backend_data *bed; + bfd_byte *loc; + + bed = get_elf_backend_data (abfd); + loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); + bed->s->swap_reloca_out (abfd, rel, loc); +} + +/* PLT/GOT stuff */ + +/* The procedure linkage table starts with the following header: + + ld_add r28, r27, 8 + ld r27, r27 + { + jr r27 + info 10 ## SP not offset, return PC in LR + } + + Subsequent entries are the following, jumping to the header at the end: + + { + moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET> + lnk r26 + } +1: + { + moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b> + shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> + } + { + add r28, r26, r28 + shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b> + } + { + add r27, r26, r27 + ld r28, r28 + info 10 ## SP not offset, return PC in LR + } + { + shl16insli r29, zero, MY_PLT_INDEX + jr r28 + } + + This code sequence lets the code at at the start of the PLT determine + which PLT entry was executed by examining 'r29'. + + Note that MY_PLT_INDEX skips over the header entries, so the first + actual jump table entry has index zero. + + If the offset fits in 16 bits, + + lnk r26 +1: + { + addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> + moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b> + } + { + shl16insli r29, zero, MY_PLT_INDEX + ld r28, r28 + } + { + add r27, r26, r27 + jr r28 + } + info 10 ## SP not offset, return PC in LR + + For the purpose of backtracing, the procedure linkage table ends with the + following tail entry: + + info 10 ## SP not offset, return PC in LR + + The 32-bit versions are similar, with ld4s replacing ld, and offsets into + the GOT being multiples of 4 instead of 8. + +*/ + +#define PLT_HEADER_SIZE_IN_BUNDLES 3 +#define PLT_ENTRY_SIZE_IN_BUNDLES 5 +#define PLT_TAIL_SIZE_IN_BUNDLES 1 + +#define PLT_HEADER_SIZE \ + (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) +#define PLT_ENTRY_SIZE \ + (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) +#define PLT_TAIL_SIZE \ + (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) + +#define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab) + +#define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab)) + +static const bfd_byte +tilegx64_plt0_entry[PLT_HEADER_SIZE] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */ + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */ + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */ +}; + +static const bfd_byte +tilegx64_long_plt_entry[PLT_ENTRY_SIZE] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */ + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */ + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */ + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */ + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */ +}; + +static const bfd_byte +tilegx64_short_plt_entry[PLT_ENTRY_SIZE] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */ + 0x9c, 0x06, 0x00, 0x90, + 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */ + 0xdd, 0x0f, 0x00, 0x70, + 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */ + 0x9b, 0xb6, 0x0d, 0x50, + 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */ + 0x00, 0x30, 0x48, 0xd1, + 0xff, 0x57, 0x18, 0x18, /* { info 10 } */ +}; + +/* Reuse an existing info 10 bundle. */ +static const bfd_byte *const tilegx64_plt_tail_entry = + &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES]; + +static const bfd_byte +tilegx32_plt0_entry[PLT_HEADER_SIZE] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */ + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */ + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */ +}; + +static const bfd_byte +tilegx32_long_plt_entry[PLT_ENTRY_SIZE] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */ + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */ + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */ + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */ + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */ +}; + +static const bfd_byte +tilegx32_short_plt_entry[PLT_ENTRY_SIZE] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */ + 0x9c, 0x06, 0x00, 0x90, + 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */ + 0xdd, 0x0f, 0x00, 0x70, + 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */ + 0x9b, 0xb6, 0x0d, 0x50, + 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */ + 0x00, 0x30, 0x48, 0xd1, + 0xff, 0x57, 0x18, 0x18, /* { info 10 } */ +}; + +/* Reuse an existing info 10 bundle. */ +static const bfd_byte *const tilegx32_plt_tail_entry = + &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES]; + +static int +tilegx_plt_entry_build (bfd *output_bfd, + struct tilegx_elf_link_hash_table *htab, + asection *splt, asection *sgotplt, + bfd_vma offset, bfd_vma *r_offset) +{ + int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; + int got_offset = (plt_index * GOT_ENTRY_SIZE (htab) + + GOTPLT_HEADER_SIZE (htab)); + tilegx_bundle_bits *pc; + + /* Compute the distance from the got entry to the lnk. */ + bfd_signed_vma dist_got_entry = sgotplt->output_section->vma + + sgotplt->output_offset + + got_offset + - splt->output_section->vma + - splt->output_offset + - offset + - TILEGX_BUNDLE_SIZE_IN_BYTES; + + /* Compute the distance to GOTPLT[0]. */ + bfd_signed_vma dist_got0 = dist_got_entry - got_offset; + + /* Check whether we can use the short plt entry with 16-bit offset. */ + bfd_boolean short_plt_entry = + (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000); + + const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *) + (ABI_64_P (output_bfd) ? + (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) : + (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry)); + + /* Copy the plt entry template. */ + memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE); + + /* Write the immediate offsets. */ + pc = (tilegx_bundle_bits *)(splt->contents + offset); + + if (short_plt_entry) + { + /* { lnk r28 } */ + pc++; + + /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */ + *pc++ |= create_Imm16_X0 (dist_got_entry) + | create_Imm16_X1 (dist_got0); + + /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */ + *pc++ |= create_Imm16_X0 (plt_index); + } + else + { + /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */ + *pc++ |= create_Imm16_X0 (dist_got_entry >> 16); + + /* { moveli r27, &GOTPLT[0] ; + shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */ + *pc++ |= create_Imm16_X0 (dist_got0 >> 16) + | create_Imm16_X1 (dist_got_entry); + + /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */ + *pc++ |= create_Imm16_X1 (dist_got0); + + /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */ + pc++; + + /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */ + *pc++ |= create_Imm16_X0 (plt_index); + } + + /* Set the relocation offset. */ + *r_offset = got_offset; + + return plt_index; +} + +/* Create an entry in an TILEGX ELF linker hash table. */ + +static struct bfd_hash_entry * +link_hash_newfunc (struct bfd_hash_entry *entry, + struct bfd_hash_table *table, const char *string) +{ + /* Allocate the structure if it has not already been allocated by a + subclass. */ + if (entry == NULL) + { + entry = + bfd_hash_allocate (table, + sizeof (struct tilegx_elf_link_hash_entry)); + if (entry == NULL) + return entry; + } + + /* Call the allocation method of the superclass. */ + entry = _bfd_elf_link_hash_newfunc (entry, table, string); + if (entry != NULL) + { + struct tilegx_elf_link_hash_entry *eh; + + eh = (struct tilegx_elf_link_hash_entry *) entry; + eh->dyn_relocs = NULL; + eh->tls_type = GOT_UNKNOWN; + } + + return entry; +} + +/* Create a TILEGX ELF linker hash table. */ + +struct bfd_link_hash_table * +tilegx_elf_link_hash_table_create (bfd *abfd) +{ + struct tilegx_elf_link_hash_table *ret; + bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table); + + ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt); + if (ret == NULL) + return NULL; + +#ifdef BFD64 + if (ABI_64_P (abfd)) + { + ret->bytes_per_word = 8; + ret->word_align_power = 3; + ret->bytes_per_rela = sizeof (Elf64_External_Rela); + ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64; + ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64; + ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64; + ret->r_info = tilegx_elf_r_info_64; + ret->r_symndx = tilegx_elf_r_symndx_64; + ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER; + ret->put_word = tilegx_put_word_64; + } + else +#endif + { + ret->bytes_per_word = 4; + ret->word_align_power = 2; + ret->bytes_per_rela = sizeof (Elf32_External_Rela); + ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32; + ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32; + ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32; + ret->r_info = tilegx_elf_r_info_32; + ret->r_symndx = tilegx_elf_r_symndx_32; + ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER; + ret->put_word = tilegx_put_word_32; + } + + if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, + sizeof (struct tilegx_elf_link_hash_entry), + TILEGX_ELF_DATA)) + { + free (ret); + return NULL; + } + + return &ret->elf.root; +} + +/* Create the .got section. */ + +static bfd_boolean +tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) +{ + flagword flags; + asection *s, *s_got; + struct elf_link_hash_entry *h; + const struct elf_backend_data *bed = get_elf_backend_data (abfd); + struct elf_link_hash_table *htab = elf_hash_table (info); + + /* This function may be called more than once. */ + s = bfd_get_linker_section (abfd, ".got"); + if (s != NULL) + return TRUE; + + flags = bed->dynamic_sec_flags; + + s = bfd_make_section_anyway_with_flags (abfd, + (bed->rela_plts_and_copies_p + ? ".rela.got" : ".rel.got"), + (bed->dynamic_sec_flags + | SEC_READONLY)); + if (s == NULL + || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) + return FALSE; + htab->srelgot = s; + + s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); + if (s == NULL + || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) + return FALSE; + htab->sgot = s; + + /* The first bit of the global offset table is the header. */ + s->size += bed->got_header_size; + + if (bed->want_got_plt) + { + s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); + if (s == NULL + || !bfd_set_section_alignment (abfd, s, + bed->s->log_file_align)) + return FALSE; + htab->sgotplt = s; + + /* Reserve room for the header. */ + s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info)); + } + + if (bed->want_got_sym) + { + /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got + section. We don't do this in the linker script because we don't want + to define the symbol if we are not creating a global offset + table. */ + h = _bfd_elf_define_linkage_sym (abfd, info, s_got, + "_GLOBAL_OFFSET_TABLE_"); + elf_hash_table (info)->hgot = h; + if (h == NULL) + return FALSE; + } + + return TRUE; +} + +/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and + .rela.bss sections in DYNOBJ, and set up shortcuts to them in our + hash table. */ + +bfd_boolean +tilegx_elf_create_dynamic_sections (bfd *dynobj, + struct bfd_link_info *info) +{ + struct tilegx_elf_link_hash_table *htab; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + if (!tilegx_elf_create_got_section (dynobj, info)) + return FALSE; + + if (!_bfd_elf_create_dynamic_sections (dynobj, info)) + return FALSE; + + htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss"); + if (!info->shared) + htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss"); + + if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss + || (!info->shared && !htab->srelbss)) + abort (); + + return TRUE; +} + +/* Copy the extra info we tack onto an elf_link_hash_entry. */ + +void +tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *dir, + struct elf_link_hash_entry *ind) +{ + struct tilegx_elf_link_hash_entry *edir, *eind; + + edir = (struct tilegx_elf_link_hash_entry *) dir; + eind = (struct tilegx_elf_link_hash_entry *) ind; + + if (eind->dyn_relocs != NULL) + { + if (edir->dyn_relocs != NULL) + { + struct tilegx_elf_dyn_relocs **pp; + struct tilegx_elf_dyn_relocs *p; + + /* Add reloc counts against the indirect sym to the direct sym + list. Merge any entries against the same section. */ + for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) + { + struct tilegx_elf_dyn_relocs *q; + + for (q = edir->dyn_relocs; q != NULL; q = q->next) + if (q->sec == p->sec) + { + q->pc_count += p->pc_count; + q->count += p->count; + *pp = p->next; + break; + } + if (q == NULL) + pp = &p->next; + } + *pp = edir->dyn_relocs; + } + + edir->dyn_relocs = eind->dyn_relocs; + eind->dyn_relocs = NULL; + } + + if (ind->root.type == bfd_link_hash_indirect + && dir->got.refcount <= 0) + { + edir->tls_type = eind->tls_type; + eind->tls_type = GOT_UNKNOWN; + } + _bfd_elf_link_hash_copy_indirect (info, dir, ind); +} + +static int +tilegx_tls_translate_to_le (int r_type) +{ + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + return R_TILEGX_IMM16_X0_HW0_TLS_LE; + + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + return R_TILEGX_IMM16_X1_HW0_TLS_LE; + + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE; + + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE; + + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE; + + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE; + } + return r_type; +} + +static int +tilegx_tls_translate_to_ie (int r_type) +{ + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + return R_TILEGX_IMM16_X0_HW0_TLS_IE; + + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + return R_TILEGX_IMM16_X1_HW0_TLS_IE; + + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE; + + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE; + + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE; + + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE; + } + return r_type; +} + +static int +tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type, + int is_local, bfd_boolean disable_le_transition) +{ + if (info->shared) + return r_type; + + if (is_local && !disable_le_transition) + return tilegx_tls_translate_to_le (r_type); + else + return tilegx_tls_translate_to_ie (r_type); +} + +/* Look through the relocs for a section during the first phase, and + allocate space in the global offset table or procedure linkage + table. */ + +bfd_boolean +tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, + asection *sec, const Elf_Internal_Rela *relocs) +{ + struct tilegx_elf_link_hash_table *htab; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + const Elf_Internal_Rela *rel; + const Elf_Internal_Rela *rel_end; + asection *sreloc; + int num_relocs; + bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE; + + if (info->relocatable) + return TRUE; + + htab = tilegx_elf_hash_table (info); + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + + sreloc = NULL; + + num_relocs = sec->reloc_count; + + BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0); + + if (htab->elf.dynobj == NULL) + htab->elf.dynobj = abfd; + + rel_end = relocs + num_relocs; + + /* Check whether to do optimization to transform TLS GD/IE + referehces to TLS LE. We disable it if we're linking with old + TLS code sequences that do not support such optimization. Old + TLS code sequences have tls_gd_call/tls_ie_load relocations but + no tls_add relocations. */ + for (rel = relocs; rel < rel_end && !has_tls_add; rel++) + { + int r_type = TILEGX_ELF_R_TYPE (rel->r_info); + switch (r_type) + { + case R_TILEGX_TLS_GD_CALL: + case R_TILEGX_TLS_IE_LOAD: + has_tls_gd_or_ie = TRUE; + break; + case R_TILEGX_IMM8_X0_TLS_ADD: + case R_TILEGX_IMM8_Y0_TLS_ADD: + case R_TILEGX_IMM8_X1_TLS_ADD: + case R_TILEGX_IMM8_Y1_TLS_ADD: + has_tls_add = TRUE; + break; + } + } + + sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add); + htab->disable_le_transition |= sec->sec_flg0; + + for (rel = relocs; rel < rel_end; rel++) + { + unsigned int r_type; + unsigned long r_symndx; + struct elf_link_hash_entry *h; + int tls_type; + + r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info); + r_type = TILEGX_ELF_R_TYPE (rel->r_info); + + if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) + { + (*_bfd_error_handler) (_("%B: bad symbol index: %d"), + abfd, r_symndx); + return FALSE; + } + + if (r_symndx < symtab_hdr->sh_info) + h = NULL; + else + { + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + /* PR15323, ref flags aren't set for references in the same + object. */ + h->root.non_ir_ref = 1; + } + + r_type = tilegx_elf_tls_transition (info, r_type, h == NULL, + sec->sec_flg0); + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_TLS_LE: + case R_TILEGX_IMM16_X1_HW0_TLS_LE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + if (info->shared) + goto r_tilegx_plt32; + break; + + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + BFD_ASSERT (info->shared); + tls_type = GOT_TLS_GD; + goto have_got_reference; + + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + tls_type = GOT_TLS_IE; + if (info->shared) + info->flags |= DF_STATIC_TLS; + goto have_got_reference; + + case R_TILEGX_IMM16_X0_HW0_GOT: + case R_TILEGX_IMM16_X1_HW0_GOT: + case R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case R_TILEGX_IMM16_X1_HW1_LAST_GOT: + tls_type = GOT_NORMAL; + /* Fall Through */ + + have_got_reference: + /* This symbol requires a global offset table entry. */ + { + int old_tls_type; + + if (h != NULL) + { + h->got.refcount += 1; + old_tls_type = tilegx_elf_hash_entry(h)->tls_type; + } + else + { + bfd_signed_vma *local_got_refcounts; + + /* This is a global offset table entry for a local symbol. */ + local_got_refcounts = elf_local_got_refcounts (abfd); + if (local_got_refcounts == NULL) + { + bfd_size_type size; + + size = symtab_hdr->sh_info; + size *= (sizeof (bfd_signed_vma) + sizeof(char)); + local_got_refcounts = ((bfd_signed_vma *) + bfd_zalloc (abfd, size)); + if (local_got_refcounts == NULL) + return FALSE; + elf_local_got_refcounts (abfd) = local_got_refcounts; + _bfd_tilegx_elf_local_got_tls_type (abfd) + = (char *) (local_got_refcounts + symtab_hdr->sh_info); + } + local_got_refcounts[r_symndx] += 1; + old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx]; + } + + /* If a TLS symbol is accessed using IE at least once, + there is no point to use dynamic model for it. */ + if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN + && (old_tls_type != GOT_TLS_GD + || tls_type != GOT_TLS_IE)) + { + if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) + tls_type = old_tls_type; + else + { + (*_bfd_error_handler) + (_("%B: `%s' accessed both as normal and thread local symbol"), + abfd, h ? h->root.root.string : "<local>"); + return FALSE; + } + } + + if (old_tls_type != tls_type) + { + if (h != NULL) + tilegx_elf_hash_entry (h)->tls_type = tls_type; + else + _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; + } + } + + if (htab->elf.sgot == NULL) + { + if (!tilegx_elf_create_got_section (htab->elf.dynobj, info)) + return FALSE; + } + break; + + case R_TILEGX_TLS_GD_CALL: + if (info->shared) + { + /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs + against __tls_get_addr. */ + struct bfd_link_hash_entry *bh = NULL; + if (! _bfd_generic_link_add_one_symbol (info, abfd, + "__tls_get_addr", 0, + bfd_und_section_ptr, 0, + NULL, FALSE, FALSE, + &bh)) + return FALSE; + h = (struct elf_link_hash_entry *) bh; + } + else + break; + /* Fall through */ + + case R_TILEGX_JUMPOFF_X1_PLT: + case R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_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 without + linking in any dynamic objects, in which case we don't + need to generate a procedure linkage table after all. */ + + if (h != NULL) + { + h->needs_plt = 1; + h->plt.refcount += 1; + } + break; + + case R_TILEGX_64_PCREL: + case R_TILEGX_32_PCREL: + case R_TILEGX_16_PCREL: + case R_TILEGX_8_PCREL: + case R_TILEGX_IMM16_X0_HW0_PCREL: + case R_TILEGX_IMM16_X1_HW0_PCREL: + case R_TILEGX_IMM16_X0_HW1_PCREL: + case R_TILEGX_IMM16_X1_HW1_PCREL: + case R_TILEGX_IMM16_X0_HW2_PCREL: + case R_TILEGX_IMM16_X1_HW2_PCREL: + case R_TILEGX_IMM16_X0_HW3_PCREL: + case R_TILEGX_IMM16_X1_HW3_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + if (h != NULL) + h->non_got_ref = 1; + + if (h != NULL + && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + break; + /* Fall through. */ + + case R_TILEGX_64: + case R_TILEGX_32: + case R_TILEGX_16: + case R_TILEGX_8: + case R_TILEGX_HW0: + case R_TILEGX_HW1: + case R_TILEGX_HW2: + case R_TILEGX_HW3: + case R_TILEGX_HW0_LAST: + case R_TILEGX_HW1_LAST: + case R_TILEGX_HW2_LAST: + case R_TILEGX_COPY: + case R_TILEGX_GLOB_DAT: + case R_TILEGX_JMP_SLOT: + case R_TILEGX_RELATIVE: + case R_TILEGX_BROFF_X1: + case R_TILEGX_JUMPOFF_X1: + case R_TILEGX_IMM8_X0: + case R_TILEGX_IMM8_Y0: + case R_TILEGX_IMM8_X1: + case R_TILEGX_IMM8_Y1: + case R_TILEGX_DEST_IMM8_X1: + case R_TILEGX_MT_IMM14_X1: + case R_TILEGX_MF_IMM14_X1: + case R_TILEGX_MMSTART_X0: + case R_TILEGX_MMEND_X0: + case R_TILEGX_SHAMT_X0: + case R_TILEGX_SHAMT_X1: + case R_TILEGX_SHAMT_Y0: + case R_TILEGX_SHAMT_Y1: + case R_TILEGX_IMM16_X0_HW0: + case R_TILEGX_IMM16_X1_HW0: + case R_TILEGX_IMM16_X0_HW1: + case R_TILEGX_IMM16_X1_HW1: + case R_TILEGX_IMM16_X0_HW2: + case R_TILEGX_IMM16_X1_HW2: + case R_TILEGX_IMM16_X0_HW3: + case R_TILEGX_IMM16_X1_HW3: + case R_TILEGX_IMM16_X0_HW0_LAST: + case R_TILEGX_IMM16_X1_HW0_LAST: + case R_TILEGX_IMM16_X0_HW1_LAST: + case R_TILEGX_IMM16_X1_HW1_LAST: + case R_TILEGX_IMM16_X0_HW2_LAST: + case R_TILEGX_IMM16_X1_HW2_LAST: + if (h != NULL) + h->non_got_ref = 1; + + r_tilegx_plt32: + if (h != NULL && !info->shared) + { + /* We may need a .plt entry if the function this reloc + refers to is in a shared lib. */ + h->plt.refcount += 1; + } + + /* If we are creating a shared library, and this is a reloc + against a global symbol, or a non PC relative reloc + against a local symbol, then we need to copy the reloc + into the shared library. However, if we are linking with + -Bsymbolic, we do not need to copy a reloc against a + global symbol which is defined in an object we are + including in the link (i.e., DEF_REGULAR is set). At + this point we have not seen all the input files, so it is + possible that DEF_REGULAR is not set now but will be set + later (it is never cleared). In case of a weak definition, + DEF_REGULAR may be cleared later by a strong definition in + a shared library. We account for that possibility below by + storing information in the relocs_copied field of the hash + table entry. A similar situation occurs when creating + shared libraries and symbol visibility changes render the + symbol local. + + If on the other hand, we are creating an executable, we + may need to keep relocations for symbols satisfied by a + dynamic library if we manage to avoid copy relocs for the + symbol. */ + if ((info->shared + && (sec->flags & SEC_ALLOC) != 0 + && (! tilegx_elf_howto_table[r_type].pc_relative + || (h != NULL + && (! info->symbolic + || h->root.type == bfd_link_hash_defweak + || !h->def_regular)))) + || (!info->shared + && (sec->flags & SEC_ALLOC) != 0 + && h != NULL + && (h->root.type == bfd_link_hash_defweak + || !h->def_regular))) + { + struct tilegx_elf_dyn_relocs *p; + struct tilegx_elf_dyn_relocs **head; + + /* When creating a shared object, we must copy these + relocs into the output file. We create a reloc + section in dynobj and make room for the reloc. */ + if (sreloc == NULL) + { + sreloc = _bfd_elf_make_dynamic_reloc_section + (sec, htab->elf.dynobj, htab->word_align_power, abfd, + /*rela?*/ TRUE); + + if (sreloc == NULL) + return FALSE; + } + + /* If this is a global symbol, we count the number of + relocations we need for this symbol. */ + if (h != NULL) + head = + &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs; + else + { + /* Track dynamic relocs needed for local syms too. + We really need local syms available to do this + easily. Oh well. */ + + asection *s; + void *vpp; + Elf_Internal_Sym *isym; + + isym = bfd_sym_from_r_symndx (&htab->sym_cache, + abfd, r_symndx); + if (isym == NULL) + return FALSE; + + s = bfd_section_from_elf_index (abfd, isym->st_shndx); + if (s == NULL) + s = sec; + + vpp = &elf_section_data (s)->local_dynrel; + head = (struct tilegx_elf_dyn_relocs **) vpp; + } + + p = *head; + if (p == NULL || p->sec != sec) + { + bfd_size_type amt = sizeof *p; + p = ((struct tilegx_elf_dyn_relocs *) + bfd_alloc (htab->elf.dynobj, amt)); + if (p == NULL) + return FALSE; + p->next = *head; + *head = p; + p->sec = sec; + p->count = 0; + p->pc_count = 0; + } + + p->count += 1; + if (tilegx_elf_howto_table[r_type].pc_relative) + p->pc_count += 1; + } + + break; + + case R_TILEGX_GNU_VTINHERIT: + if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) + return FALSE; + break; + + case R_TILEGX_GNU_VTENTRY: + if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) + return FALSE; + break; + + default: + break; + } + } + + return TRUE; +} + + +asection * +tilegx_elf_gc_mark_hook (asection *sec, + struct bfd_link_info *info, + Elf_Internal_Rela *rel, + struct elf_link_hash_entry *h, + Elf_Internal_Sym *sym) +{ + if (h != NULL) + { + switch (TILEGX_ELF_R_TYPE (rel->r_info)) + { + case R_TILEGX_GNU_VTINHERIT: + case R_TILEGX_GNU_VTENTRY: + return NULL; + } + } + + /* FIXME: The test here, in check_relocs and in relocate_section + dealing with TLS optimization, ought to be !info->executable. */ + if (info->shared) + { + switch (TILEGX_ELF_R_TYPE (rel->r_info)) + { + case R_TILEGX_TLS_GD_CALL: + /* This reloc implicitly references __tls_get_addr. We know + another reloc will reference the same symbol as the one + on this reloc, so the real symbol and section will be + gc marked when processing the other reloc. That lets + us handle __tls_get_addr here. */ + h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr", + FALSE, FALSE, TRUE); + BFD_ASSERT (h != NULL); + h->mark = 1; + if (h->u.weakdef != NULL) + h->u.weakdef->mark = 1; + sym = NULL; + } + } + + return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); +} + +/* Update the got entry reference counts for the section being removed. */ +bfd_boolean +tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, + asection *sec, const Elf_Internal_Rela *relocs) +{ + struct tilegx_elf_link_hash_table *htab; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_signed_vma *local_got_refcounts; + const Elf_Internal_Rela *rel, *relend; + + if (info->relocatable) + return TRUE; + + BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0); + + elf_section_data (sec)->local_dynrel = NULL; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + symtab_hdr = &elf_symtab_hdr (abfd); + sym_hashes = elf_sym_hashes (abfd); + local_got_refcounts = elf_local_got_refcounts (abfd); + + relend = relocs + sec->reloc_count; + for (rel = relocs; rel < relend; rel++) + { + unsigned long r_symndx; + unsigned int r_type; + struct elf_link_hash_entry *h = NULL; + + r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + struct tilegx_elf_link_hash_entry *eh; + struct tilegx_elf_dyn_relocs **pp; + struct tilegx_elf_dyn_relocs *p; + + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + eh = (struct tilegx_elf_link_hash_entry *) h; + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) + if (p->sec == sec) + { + /* Everything must go for SEC. */ + *pp = p->next; + break; + } + } + + r_type = TILEGX_ELF_R_TYPE (rel->r_info); + r_type = tilegx_elf_tls_transition (info, r_type, h != NULL, + sec->sec_flg0); + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_GOT: + case R_TILEGX_IMM16_X1_HW0_GOT: + case R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case R_TILEGX_IMM16_X1_HW1_LAST_GOT: + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + if (h != NULL) + { + if (h->got.refcount > 0) + h->got.refcount--; + } + else + { + if (local_got_refcounts && + local_got_refcounts[r_symndx] > 0) + local_got_refcounts[r_symndx]--; + } + break; + + case R_TILEGX_64_PCREL: + case R_TILEGX_32_PCREL: + case R_TILEGX_16_PCREL: + case R_TILEGX_8_PCREL: + case R_TILEGX_IMM16_X0_HW0_PCREL: + case R_TILEGX_IMM16_X1_HW0_PCREL: + case R_TILEGX_IMM16_X0_HW1_PCREL: + case R_TILEGX_IMM16_X1_HW1_PCREL: + case R_TILEGX_IMM16_X0_HW2_PCREL: + case R_TILEGX_IMM16_X1_HW2_PCREL: + case R_TILEGX_IMM16_X0_HW3_PCREL: + case R_TILEGX_IMM16_X1_HW3_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + if (h != NULL + && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + break; + /* Fall through. */ + + case R_TILEGX_64: + case R_TILEGX_32: + case R_TILEGX_16: + case R_TILEGX_8: + case R_TILEGX_HW0: + case R_TILEGX_HW1: + case R_TILEGX_HW2: + case R_TILEGX_HW3: + case R_TILEGX_HW0_LAST: + case R_TILEGX_HW1_LAST: + case R_TILEGX_HW2_LAST: + case R_TILEGX_COPY: + case R_TILEGX_GLOB_DAT: + case R_TILEGX_JMP_SLOT: + case R_TILEGX_RELATIVE: + case R_TILEGX_BROFF_X1: + case R_TILEGX_JUMPOFF_X1: + case R_TILEGX_IMM8_X0: + case R_TILEGX_IMM8_Y0: + case R_TILEGX_IMM8_X1: + case R_TILEGX_IMM8_Y1: + case R_TILEGX_DEST_IMM8_X1: + case R_TILEGX_MT_IMM14_X1: + case R_TILEGX_MF_IMM14_X1: + case R_TILEGX_MMSTART_X0: + case R_TILEGX_MMEND_X0: + case R_TILEGX_SHAMT_X0: + case R_TILEGX_SHAMT_X1: + case R_TILEGX_SHAMT_Y0: + case R_TILEGX_SHAMT_Y1: + case R_TILEGX_IMM16_X0_HW0: + case R_TILEGX_IMM16_X1_HW0: + case R_TILEGX_IMM16_X0_HW1: + case R_TILEGX_IMM16_X1_HW1: + case R_TILEGX_IMM16_X0_HW2: + case R_TILEGX_IMM16_X1_HW2: + case R_TILEGX_IMM16_X0_HW3: + case R_TILEGX_IMM16_X1_HW3: + case R_TILEGX_IMM16_X0_HW0_LAST: + case R_TILEGX_IMM16_X1_HW0_LAST: + case R_TILEGX_IMM16_X0_HW1_LAST: + case R_TILEGX_IMM16_X1_HW1_LAST: + case R_TILEGX_IMM16_X0_HW2_LAST: + case R_TILEGX_IMM16_X1_HW2_LAST: + if (info->shared) + break; + /* Fall through. */ + + case R_TILEGX_JUMPOFF_X1_PLT: + case R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + if (h != NULL) + { + if (h->plt.refcount > 0) + h->plt.refcount--; + } + break; + + default: + break; + } + } + + return TRUE; +} + +/* 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. */ + +bfd_boolean +tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *h) +{ + struct tilegx_elf_link_hash_table *htab; + struct tilegx_elf_link_hash_entry * eh; + struct tilegx_elf_dyn_relocs *p; + bfd *dynobj; + asection *s; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + dynobj = htab->elf.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))); + + /* If this is a function, put it in the procedure linkage table. We + will fill in the contents of the procedure linkage table later + (although we could actually do it here). */ + if (h->type == STT_FUNC || h->needs_plt) + { + if (h->plt.refcount <= 0 + || SYMBOL_CALLS_LOCAL (info, h) + || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT + && h->root.type == bfd_link_hash_undefweak)) + { + /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT + reloc in an input file, but the symbol was never referred + to by a dynamic object, or if all references were garbage + collected. In such a case, we don't actually need to build + a procedure linkage table, and we can just do a + R_TILEGX_JUMPOFF_X1 relocation instead. */ + h->plt.offset = (bfd_vma) -1; + h->needs_plt = 0; + } + + return TRUE; + } + else + 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; + + /* If -z nocopyreloc was given, we won't generate them either. */ + if (info->nocopyreloc) + { + h->non_got_ref = 0; + return TRUE; + } + + eh = (struct tilegx_elf_link_hash_entry *) h; + for (p = eh->dyn_relocs; p != NULL; p = p->next) + { + s = p->sec->output_section; + if (s != NULL && (s->flags & SEC_READONLY) != 0) + break; + } + + /* If we didn't find any dynamic relocs in read-only sections, then + we'll be keeping the dynamic relocs and avoiding the copy reloc. */ + if (p == NULL) + { + h->non_got_ref = 0; + return TRUE; + } + + /* We must allocate the symbol in our .dynbss section, which will + become part of the .bss section of the executable. There will be + an entry for this symbol in the .dynsym section. The dynamic + object will contain position independent code, so all references + from the dynamic object to this symbol will go through the global + offset table. The dynamic linker will use the .dynsym entry to + determine the address it must put in the global offset table, so + both the dynamic object and the regular object will refer to the + same memory location for the variable. */ + + /* We must generate a R_TILEGX_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 + .rel.bss section we are going to use. */ + if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) + { + htab->srelbss->size += TILEGX_ELF_RELA_BYTES (htab); + h->needs_copy = 1; + } + + return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss); +} + +/* Allocate space in .plt, .got and associated reloc sections for + dynamic relocs. */ + +static bfd_boolean +allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) +{ + struct bfd_link_info *info; + struct tilegx_elf_link_hash_table *htab; + struct tilegx_elf_link_hash_entry *eh; + struct tilegx_elf_dyn_relocs *p; + + if (h->root.type == bfd_link_hash_indirect) + return TRUE; + + info = (struct bfd_link_info *) inf; + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + if (htab->elf.dynamic_sections_created + && h->plt.refcount > 0) + { + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) + { + asection *s = htab->elf.splt; + + /* Allocate room for the header and tail. */ + if (s->size == 0) + { + s->size = PLT_ENTRY_SIZE; + } + + h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE; + + /* If this symbol is not defined in a regular file, and we are + not generating a shared library, then set the symbol to this + location in the .plt. This is required to make function + pointers compare as equal between the normal executable and + the shared library. */ + if (! info->shared + && !h->def_regular) + { + h->root.u.def.section = s; + h->root.u.def.value = h->plt.offset; + } + + /* Make room for this entry. */ + s->size += PLT_ENTRY_SIZE; + + /* We also need to make an entry in the .got.plt section. */ + htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab); + + /* We also need to make an entry in the .rela.plt section. */ + htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab); + } + else + { + h->plt.offset = (bfd_vma) -1; + h->needs_plt = 0; + } + } + else + { + h->plt.offset = (bfd_vma) -1; + h->needs_plt = 0; + } + + /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE + requiring no TLS entry. */ + if (h->got.refcount > 0 + && !htab->disable_le_transition + && !info->shared + && h->dynindx == -1 + && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE) + h->got.offset = (bfd_vma) -1; + else if (h->got.refcount > 0) + { + asection *s; + bfd_boolean dyn; + int tls_type = tilegx_elf_hash_entry(h)->tls_type; + + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + s = htab->elf.sgot; + h->got.offset = s->size; + s->size += TILEGX_ELF_WORD_BYTES (htab); + /* TLS_GD entries need 2 consecutive GOT slots. */ + if (tls_type == GOT_TLS_GD) + s->size += TILEGX_ELF_WORD_BYTES (htab); + dyn = htab->elf.dynamic_sections_created; + /* TLS_IE needs one dynamic relocation, + TLS_GD needs two if local symbol and two if global. */ + if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE) + htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab); + else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) + htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab); + } + else + h->got.offset = (bfd_vma) -1; + + eh = (struct tilegx_elf_link_hash_entry *) h; + if (eh->dyn_relocs == NULL) + return TRUE; + + /* In the shared -Bsymbolic case, discard space allocated for + dynamic pc-relative relocs against symbols which turn out to be + defined in regular objects. For the normal shared case, discard + space for pc-relative relocs that have become local due to symbol + visibility changes. */ + + if (info->shared) + { + if (SYMBOL_CALLS_LOCAL (info, h)) + { + struct tilegx_elf_dyn_relocs **pp; + + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) + { + p->count -= p->pc_count; + p->pc_count = 0; + if (p->count == 0) + *pp = p->next; + else + pp = &p->next; + } + } + + /* Also discard relocs on undefined weak syms with non-default + visibility. */ + if (eh->dyn_relocs != NULL + && h->root.type == bfd_link_hash_undefweak) + { + if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) + eh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + } + } + else + { + /* For the non-shared case, discard space for relocs against + symbols which turn out to need copy relocs or are not + dynamic. */ + + if (!h->non_got_ref + && ((h->def_dynamic + && !h->def_regular) + || (htab->elf.dynamic_sections_created + && (h->root.type == bfd_link_hash_undefweak + || h->root.type == bfd_link_hash_undefined)))) + { + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (h->dynindx == -1 + && !h->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, h)) + return FALSE; + } + + /* If that succeeded, we know we'll be keeping all the + relocs. */ + if (h->dynindx != -1) + goto keep; + } + + eh->dyn_relocs = NULL; + + keep: ; + } + + /* Finally, allocate space. */ + for (p = eh->dyn_relocs; p != NULL; p = p->next) + { + asection *sreloc = elf_section_data (p->sec)->sreloc; + sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab); + } + + return TRUE; +} + +/* Find any dynamic relocs that apply to read-only sections. */ + +static bfd_boolean +readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) +{ + struct tilegx_elf_link_hash_entry *eh; + struct tilegx_elf_dyn_relocs *p; + + eh = (struct tilegx_elf_link_hash_entry *) h; + for (p = eh->dyn_relocs; p != NULL; p = p->next) + { + asection *s = p->sec->output_section; + + if (s != NULL && (s->flags & SEC_READONLY) != 0) + { + struct bfd_link_info *info = (struct bfd_link_info *) inf; + + info->flags |= DF_TEXTREL; + + /* Not an error, just cut short the traversal. */ + return FALSE; + } + } + return TRUE; +} + +/* Return true if the dynamic symbol for a given section should be + omitted when creating a shared library. */ + +bfd_boolean +tilegx_elf_omit_section_dynsym (bfd *output_bfd, + struct bfd_link_info *info, + asection *p) +{ + /* We keep the .got section symbol so that explicit relocations + against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode + can be turned into relocations against the .got symbol. */ + if (strcmp (p->name, ".got") == 0) + return FALSE; + + return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p); +} + +bfd_boolean +tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info *info) +{ + struct tilegx_elf_link_hash_table *htab; + bfd *dynobj; + asection *s; + bfd *ibfd; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + dynobj = htab->elf.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 = strlen (htab->dynamic_interpreter) + 1; + s->contents = (unsigned char *) htab->dynamic_interpreter; + } + } + + /* Set up .got offsets for local syms, and space for local dynamic + relocs. */ + for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) + { + bfd_signed_vma *local_got; + bfd_signed_vma *end_local_got; + char *local_tls_type; + bfd_size_type locsymcount; + Elf_Internal_Shdr *symtab_hdr; + asection *srel; + + if (! is_tilegx_elf (ibfd)) + continue; + + for (s = ibfd->sections; s != NULL; s = s->next) + { + struct tilegx_elf_dyn_relocs *p; + + for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) + { + if (!bfd_is_abs_section (p->sec) + && bfd_is_abs_section (p->sec->output_section)) + { + /* Input section has been discarded, either because + it is a copy of a linkonce section or due to + linker script /DISCARD/, so we'll be discarding + the relocs too. */ + } + else if (p->count != 0) + { + srel = elf_section_data (p->sec)->sreloc; + srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab); + if ((p->sec->output_section->flags & SEC_READONLY) != 0) + info->flags |= DF_TEXTREL; + } + } + } + + local_got = elf_local_got_refcounts (ibfd); + if (!local_got) + continue; + + symtab_hdr = &elf_symtab_hdr (ibfd); + locsymcount = symtab_hdr->sh_info; + end_local_got = local_got + locsymcount; + local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd); + s = htab->elf.sgot; + srel = htab->elf.srelgot; + for (; local_got < end_local_got; ++local_got, ++local_tls_type) + { + if (*local_got > 0) + { + *local_got = s->size; + s->size += TILEGX_ELF_WORD_BYTES (htab); + if (*local_tls_type == GOT_TLS_GD) + s->size += TILEGX_ELF_WORD_BYTES (htab); + if (info->shared + || *local_tls_type == GOT_TLS_GD + || *local_tls_type == GOT_TLS_IE) + srel->size += TILEGX_ELF_RELA_BYTES (htab); + } + else + *local_got = (bfd_vma) -1; + } + } + + /* Allocate global sym .plt and .got entries, and space for global + sym dynamic relocs. */ + elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); + + if (elf_hash_table (info)->dynamic_sections_created) + { + /* If the .got section is more than 0x8000 bytes, we add + 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16 + bit relocations have a greater chance of working. */ + if (htab->elf.sgot->size >= 0x8000 + && elf_hash_table (info)->hgot->root.u.def.value == 0) + elf_hash_table (info)->hgot->root.u.def.value = 0x8000; + } + + if (htab->elf.sgotplt) + { + struct elf_link_hash_entry *got; + got = elf_link_hash_lookup (elf_hash_table (info), + "_GLOBAL_OFFSET_TABLE_", + FALSE, FALSE, FALSE); + + /* Don't allocate .got.plt section if there are no GOT nor PLT + entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */ + if ((got == NULL + || !got->ref_regular_nonweak) + && (htab->elf.sgotplt->size + == (unsigned)GOTPLT_HEADER_SIZE (htab)) + && (htab->elf.splt == NULL + || htab->elf.splt->size == 0) + && (htab->elf.sgot == NULL + || (htab->elf.sgot->size + == get_elf_backend_data (output_bfd)->got_header_size))) + htab->elf.sgotplt->size = 0; + } + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + for (s = dynobj->sections; s != NULL; s = s->next) + { + if ((s->flags & SEC_LINKER_CREATED) == 0) + continue; + + if (s == htab->elf.splt + || s == htab->elf.sgot + || s == htab->elf.sgotplt + || s == htab->sdynbss) + { + /* Strip this section if we don't need it; see the + comment below. */ + } + else if (strncmp (s->name, ".rela", 5) == 0) + { + if (s->size != 0) + { + /* We use the reloc_count field as a counter if we need + to copy relocs into the output file. */ + s->reloc_count = 0; + } + } + else + { + /* It's not one of our sections. */ + 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. Zero the memory + for the benefit of .rela.plt, which has 4 unused entries + at the beginning, and we don't want garbage. */ + 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 tilegx_elf_finish_dynamic_sections, but we + must add the entries now so that we get the correct size for + the .dynamic section. The DT_DEBUG entry is filled in by the + dynamic linker and used by the debugger. */ +#define add_dynamic_entry(TAG, VAL) \ + _bfd_elf_add_dynamic_entry (info, TAG, VAL) + + if (info->executable) + { + if (!add_dynamic_entry (DT_DEBUG, 0)) + return FALSE; + } + + if (htab->elf.srelplt->size != 0) + { + if (!add_dynamic_entry (DT_PLTGOT, 0) + || !add_dynamic_entry (DT_PLTRELSZ, 0) + || !add_dynamic_entry (DT_PLTREL, DT_RELA) + || !add_dynamic_entry (DT_JMPREL, 0)) + return FALSE; + } + + if (!add_dynamic_entry (DT_RELA, 0) + || !add_dynamic_entry (DT_RELASZ, 0) + || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab))) + return FALSE; + + /* If any dynamic relocs apply to a read-only section, + then we need a DT_TEXTREL entry. */ + if ((info->flags & DF_TEXTREL) == 0) + elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); + + if (info->flags & DF_TEXTREL) + { + if (!add_dynamic_entry (DT_TEXTREL, 0)) + return FALSE; + } + } +#undef add_dynamic_entry + + return TRUE; +} + +/* Return the base VMA address which should be subtracted from real addresses + when resolving @dtpoff relocation. + This is PT_TLS segment p_vaddr. */ + +static bfd_vma +dtpoff_base (struct bfd_link_info *info) +{ + /* If tls_sec is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_sec == NULL) + return 0; + return elf_hash_table (info)->tls_sec->vma; +} + +/* Return the relocation value for @tpoff relocation. */ + +static bfd_vma +tpoff (struct bfd_link_info *info, bfd_vma address) +{ + struct elf_link_hash_table *htab = elf_hash_table (info); + + /* If tls_sec is NULL, we should have signalled an error already. */ + if (htab->tls_sec == NULL) + return 0; + + return (address - htab->tls_sec->vma); +} + +/* Copy SIZE bits from FROM to TO at address ADDR. */ + +static void +tilegx_copy_bits (bfd_byte *addr, int from, int to, int size) +{ + int i; + for (i = 0; i < size; i++) + { + int from_byte = (from + i) / 8; + int from_bit = (from + i) % 8; + int to_byte = (to + i) / 8; + int to_bit = (to + i) % 8; + bfd_byte to_mask = 1 << to_bit; + addr[to_byte] = (addr[to_byte] & ~to_mask) + | ((addr[from_byte] >> from_bit << to_bit) & to_mask); + } +} + +/* Replace the MASK bits in ADDR with those in INSN, for the next + TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */ + +static void +tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask, + const bfd_byte *insn) +{ + int i; + for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++) + { + addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]); + } +} + +/* Mask to extract the bits corresponding to an instruction in a + specific pipe of a bundle. */ +static const bfd_byte insn_mask_X1[] = { + 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f +}; + +/* Mask to extract the bits corresponding to an instruction in a + specific pipe of a bundle, minus the destination operand and the + first source operand. */ +static const bfd_byte insn_mask_X0_no_dest_no_srca[] = { + 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00 +}; + +static const bfd_byte insn_mask_X1_no_dest_no_srca[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f +}; + +static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = { + 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00 +}; +static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c +}; + +/* Mask to extract the bits corresponding to an instruction in a + specific pipe of a bundle, minus the register operands. */ +static const bfd_byte insn_mask_X0_no_operand[] = { + 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00 +}; + +static const bfd_byte insn_mask_X1_no_operand[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f +}; + +static const bfd_byte insn_mask_Y0_no_operand[] = { + 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00 +}; + +static const bfd_byte insn_mask_Y1_no_operand[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c +}; + +/* Various instructions synthesized to support tls references. */ + +/* ld r0, r0 in the X1 pipe, used for tls ie. */ +static const bfd_byte insn_tls_ie_ld_X1[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28 +}; + +/* ld4s r0, r0 in the X1 pipe, used for tls ie. */ +static const bfd_byte insn_tls_ie_ld4s_X1[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28 +}; + +/* add r0, r0, tp in various pipes, used for tls ie. */ +static const bfd_byte insn_tls_ie_add_X0X1[] = { + 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28 +}; +static const bfd_byte insn_tls_ie_add_Y0Y1[] = { + 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a +}; + +/* addx r0, r0, tp in various pipes, used for tls ie. */ +static const bfd_byte insn_tls_ie_addx_X0X1[] = { + 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28 +}; +static const bfd_byte insn_tls_ie_addx_Y0Y1[] = { + 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a +}; + +/* move r0, r0 in various pipes, used for tls gd. */ +static const bfd_byte insn_tls_gd_add_X0X1[] = { + 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28 +}; +static const bfd_byte insn_tls_gd_add_Y0Y1[] = { + 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae +}; + +static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1; +static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1; + +static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1; +static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1; + +static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1; +static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1; + +/* Relocate an TILEGX ELF section. + + The RELOCATE_SECTION function is called by the new ELF backend linker + to handle the relocations for a section. + + The relocs are always passed as Rela structures. + + This function is responsible for adjusting the section contents as + necessary, and (if generating a relocatable output file) adjusting + the reloc addend as necessary. + + This function does not have to worry about setting the reloc + address or the reloc symbol index. + + LOCAL_SYMS is a pointer to the swapped in local symbols. + + LOCAL_SECTIONS is an array giving the section in the input file + corresponding to the st_shndx field of each local symbol. + + The global hash table entry for the global symbols can be found + via elf_sym_hashes (input_bfd). + + When generating relocatable output, this function must handle + STB_LOCAL/STT_SECTION symbols specially. The output symbol is + going to be the section symbol corresponding to the output + section, which means that the addend must be adjusted + accordingly. */ + +bfd_boolean +tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, + bfd *input_bfd, asection *input_section, + bfd_byte *contents, Elf_Internal_Rela *relocs, + Elf_Internal_Sym *local_syms, + asection **local_sections) +{ + struct tilegx_elf_link_hash_table *htab; + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **sym_hashes; + bfd_vma *local_got_offsets; + bfd_vma got_base; + asection *sreloc; + Elf_Internal_Rela *rel; + Elf_Internal_Rela *relend; + int num_relocs; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + symtab_hdr = &elf_symtab_hdr (input_bfd); + sym_hashes = elf_sym_hashes (input_bfd); + local_got_offsets = elf_local_got_offsets (input_bfd); + + if (elf_hash_table (info)->hgot == NULL) + got_base = 0; + else + got_base = elf_hash_table (info)->hgot->root.u.def.value; + + sreloc = elf_section_data (input_section)->sreloc; + + rel = relocs; + num_relocs = input_section->reloc_count; + relend = relocs + num_relocs; + for (; rel < relend; rel++) + { + int r_type, tls_type; + bfd_boolean is_tls_iele, is_tls_le; + reloc_howto_type *howto; + unsigned long r_symndx; + struct elf_link_hash_entry *h; + Elf_Internal_Sym *sym; + tilegx_create_func create_func; + asection *sec; + bfd_vma relocation; + bfd_reloc_status_type r; + const char *name; + bfd_vma off; + bfd_boolean is_plt = FALSE; + + bfd_boolean unresolved_reloc; + + r_type = TILEGX_ELF_R_TYPE (rel->r_info); + if (r_type == R_TILEGX_GNU_VTINHERIT + || r_type == R_TILEGX_GNU_VTENTRY) + continue; + + if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table)) + { + /* Not clear if we need to check here, but just be paranoid. */ + (*_bfd_error_handler) + (_("%B: unrecognized relocation (0x%x) in section `%A'"), + input_bfd, r_type, input_section); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + howto = tilegx_elf_howto_table + r_type; + + /* This is a final link. */ + r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info); + h = NULL; + sym = NULL; + sec = NULL; + unresolved_reloc = FALSE; + 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); + } + else + { + bfd_boolean warned; + + RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, + r_symndx, symtab_hdr, sym_hashes, + h, sec, relocation, + unresolved_reloc, warned); + if (warned) + { + /* To avoid generating warning messages about truncated + relocations, set the relocation's address to be the same as + the start of this section. */ + if (input_section->output_section != NULL) + relocation = input_section->output_section->vma; + else + relocation = 0; + } + } + + 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; + + if (h != NULL) + name = h->root.root.string; + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name)); + if (name == NULL || *name == '\0') + name = bfd_section_name (input_bfd, sec); + } + + switch (r_type) + { + case R_TILEGX_TLS_GD_CALL: + case R_TILEGX_IMM8_X0_TLS_GD_ADD: + case R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case R_TILEGX_IMM8_X1_TLS_GD_ADD: + case R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case R_TILEGX_IMM8_X0_TLS_ADD: + case R_TILEGX_IMM8_Y0_TLS_ADD: + case R_TILEGX_IMM8_X1_TLS_ADD: + case R_TILEGX_IMM8_Y1_TLS_ADD: + tls_type = GOT_UNKNOWN; + if (h == NULL && local_got_offsets) + tls_type = + _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx]; + else if (h != NULL) + tls_type = tilegx_elf_hash_entry(h)->tls_type; + + is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE); + is_tls_le = is_tls_iele && (!input_section->sec_flg0 + && !info->shared + && (h == NULL || h->dynindx == -1)); + + if (r_type == R_TILEGX_TLS_GD_CALL) + { + if (is_tls_le) + { + /* GD -> LE */ + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1, insn_move_X0X1); + continue; + } + else if (is_tls_iele) + { + /* GD -> IE */ + if (ABI_64_P (output_bfd)) + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1, insn_tls_ie_ld_X1); + else + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1, insn_tls_ie_ld4s_X1); + continue; + } + + /* GD -> GD */ + h = (struct elf_link_hash_entry *) + bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, + FALSE, TRUE); + BFD_ASSERT (h != NULL); + r_type = R_TILEGX_JUMPOFF_X1_PLT; + howto = tilegx_elf_howto_table + r_type; + } + else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD + || r_type == R_TILEGX_IMM8_X1_TLS_ADD + || r_type == R_TILEGX_IMM8_Y0_TLS_ADD + || r_type == R_TILEGX_IMM8_Y1_TLS_ADD) + { + bfd_boolean is_pipe0 = + (r_type == R_TILEGX_IMM8_X0_TLS_ADD + || r_type == R_TILEGX_IMM8_Y0_TLS_ADD); + bfd_boolean is_X0X1 = + (r_type == R_TILEGX_IMM8_X0_TLS_ADD + || r_type == R_TILEGX_IMM8_X1_TLS_ADD); + int dest_begin = is_pipe0 ? 0 : 31; + int src_begin; + const bfd_byte *insn; + const bfd_byte *mask = NULL; + + if (is_tls_le) + { + /* 1. copy dest operand into the first source operand. + 2. change the opcode to "move". */ + src_begin = is_pipe0 ? 6 : 37; + insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1; + + switch (r_type) + { + case R_TILEGX_IMM8_X0_TLS_ADD: + mask = insn_mask_X0_no_dest_no_srca; + break; + case R_TILEGX_IMM8_X1_TLS_ADD: + mask = insn_mask_X1_no_dest_no_srca; + break; + case R_TILEGX_IMM8_Y0_TLS_ADD: + mask = insn_mask_Y0_no_dest_no_srca; + break; + case R_TILEGX_IMM8_Y1_TLS_ADD: + mask = insn_mask_Y1_no_dest_no_srca; + break; + } + } + else + { + /* 1. copy dest operand into the second source operand. + 2. change the opcode to "add". */ + src_begin = is_pipe0 ? 12 : 43; + if (ABI_64_P (output_bfd)) + insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1; + else + insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1; + + switch (r_type) + { + case R_TILEGX_IMM8_X0_TLS_ADD: + mask = insn_mask_X0_no_operand; + break; + case R_TILEGX_IMM8_X1_TLS_ADD: + mask = insn_mask_X1_no_operand; + break; + case R_TILEGX_IMM8_Y0_TLS_ADD: + mask = insn_mask_Y0_no_operand; + break; + case R_TILEGX_IMM8_Y1_TLS_ADD: + mask = insn_mask_Y1_no_operand; + break; + } + } + + tilegx_copy_bits (contents + rel->r_offset, dest_begin, + src_begin, 6); + tilegx_replace_insn (contents + rel->r_offset, mask, insn); + + continue; + } + else + { + const bfd_byte *mask = NULL; + const bfd_byte *add_insn = NULL; + bfd_boolean is_64bit = ABI_64_P (output_bfd); + + switch (r_type) + { + case R_TILEGX_IMM8_X0_TLS_GD_ADD: + add_insn = is_tls_iele + ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1) + : insn_tls_gd_add_X0X1; + mask = insn_mask_X0_no_dest_no_srca; + break; + case R_TILEGX_IMM8_X1_TLS_GD_ADD: + add_insn = is_tls_iele + ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1) + : insn_tls_gd_add_X0X1; + mask = insn_mask_X1_no_dest_no_srca; + break; + case R_TILEGX_IMM8_Y0_TLS_GD_ADD: + add_insn = is_tls_iele + ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1) + : insn_tls_gd_add_Y0Y1; + mask = insn_mask_Y0_no_dest_no_srca; + break; + case R_TILEGX_IMM8_Y1_TLS_GD_ADD: + add_insn = is_tls_iele + ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1) + : insn_tls_gd_add_Y0Y1; + mask = insn_mask_Y1_no_dest_no_srca; + break; + } + + tilegx_replace_insn (contents + rel->r_offset, mask, add_insn); + + continue; + } + break; + case R_TILEGX_TLS_IE_LOAD: + if (!input_section->sec_flg0 + && !info->shared + && (h == NULL || h->dynindx == -1)) + { + /* IE -> LE */ + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1_no_dest_no_srca, + insn_move_X0X1); + } + else + { + /* IE -> IE */ + if (ABI_64_P (output_bfd)) + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1_no_dest_no_srca, + insn_tls_ie_ld_X1); + else + tilegx_replace_insn (contents + rel->r_offset, + insn_mask_X1_no_dest_no_srca, + insn_tls_ie_ld4s_X1); + } + continue; + break; + default: + break; + } + + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_GOT: + case R_TILEGX_IMM16_X1_HW0_GOT: + case R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case R_TILEGX_IMM16_X1_HW1_LAST_GOT: + /* Relocation is to the entry for this symbol in the global + offset table. */ + if (htab->elf.sgot == NULL) + abort (); + + if (h != NULL) + { + bfd_boolean dyn; + + off = h->got.offset; + BFD_ASSERT (off != (bfd_vma) -1); + dyn = elf_hash_table (info)->dynamic_sections_created; + + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) + || (info->shared + && SYMBOL_REFERENCES_LOCAL (info, h))) + { + /* This is actually a static link, or it is a + -Bsymbolic link and the symbol is defined + locally, or the symbol was forced to be local + because of a version file. We must initialize + this entry in the global offset table. Since the + offset must always be a multiple + of 8 for 64-bit, we use the least significant bit + to record whether we have initialized it already. + + When doing a dynamic link, we 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 + { + TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation, + htab->elf.sgot->contents + off); + h->got.offset |= 1; + } + } + else + unresolved_reloc = FALSE; + } + 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 8 on 64-bit. + We use the least significant bit to record + whether we have already processed this entry. */ + if ((off & 1) != 0) + off &= ~1; + else + { + if (info->shared) + { + asection *s; + Elf_Internal_Rela outrel; + + /* We need to generate a R_TILEGX_RELATIVE reloc + for the dynamic linker. */ + s = htab->elf.srelgot; + BFD_ASSERT (s != NULL); + + outrel.r_offset = (htab->elf.sgot->output_section->vma + + htab->elf.sgot->output_offset + + off); + outrel.r_info = + TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE); + outrel.r_addend = relocation; + relocation = 0; + tilegx_elf_append_rela (output_bfd, s, &outrel); + } + + TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation, + htab->elf.sgot->contents + off); + local_got_offsets[r_symndx] |= 1; + } + } + relocation = off - got_base; + break; + + case R_TILEGX_JUMPOFF_X1_PLT: + case R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW3_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + /* Relocation is to the entry for this symbol in the + procedure linkage table. */ + BFD_ASSERT (h != NULL); + + if (h->plt.offset == (bfd_vma) -1 || htab->elf.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 = (htab->elf.splt->output_section->vma + + htab->elf.splt->output_offset + + h->plt.offset); + unresolved_reloc = FALSE; + break; + + case R_TILEGX_64_PCREL: + case R_TILEGX_32_PCREL: + case R_TILEGX_16_PCREL: + case R_TILEGX_8_PCREL: + case R_TILEGX_IMM16_X0_HW0_PCREL: + case R_TILEGX_IMM16_X1_HW0_PCREL: + case R_TILEGX_IMM16_X0_HW1_PCREL: + case R_TILEGX_IMM16_X1_HW1_PCREL: + case R_TILEGX_IMM16_X0_HW2_PCREL: + case R_TILEGX_IMM16_X1_HW2_PCREL: + case R_TILEGX_IMM16_X0_HW3_PCREL: + case R_TILEGX_IMM16_X1_HW3_PCREL: + case R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + if (h != NULL + && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) + break; + /* Fall through. */ + case R_TILEGX_64: + case R_TILEGX_32: + case R_TILEGX_16: + case R_TILEGX_8: + case R_TILEGX_HW0: + case R_TILEGX_HW1: + case R_TILEGX_HW2: + case R_TILEGX_HW3: + case R_TILEGX_HW0_LAST: + case R_TILEGX_HW1_LAST: + case R_TILEGX_HW2_LAST: + case R_TILEGX_COPY: + case R_TILEGX_GLOB_DAT: + case R_TILEGX_JMP_SLOT: + case R_TILEGX_RELATIVE: + case R_TILEGX_BROFF_X1: + case R_TILEGX_JUMPOFF_X1: + case R_TILEGX_IMM8_X0: + case R_TILEGX_IMM8_Y0: + case R_TILEGX_IMM8_X1: + case R_TILEGX_IMM8_Y1: + case R_TILEGX_DEST_IMM8_X1: + case R_TILEGX_MT_IMM14_X1: + case R_TILEGX_MF_IMM14_X1: + case R_TILEGX_MMSTART_X0: + case R_TILEGX_MMEND_X0: + case R_TILEGX_SHAMT_X0: + case R_TILEGX_SHAMT_X1: + case R_TILEGX_SHAMT_Y0: + case R_TILEGX_SHAMT_Y1: + case R_TILEGX_IMM16_X0_HW0: + case R_TILEGX_IMM16_X1_HW0: + case R_TILEGX_IMM16_X0_HW1: + case R_TILEGX_IMM16_X1_HW1: + case R_TILEGX_IMM16_X0_HW2: + case R_TILEGX_IMM16_X1_HW2: + case R_TILEGX_IMM16_X0_HW3: + case R_TILEGX_IMM16_X1_HW3: + case R_TILEGX_IMM16_X0_HW0_LAST: + case R_TILEGX_IMM16_X1_HW0_LAST: + case R_TILEGX_IMM16_X0_HW1_LAST: + case R_TILEGX_IMM16_X1_HW1_LAST: + case R_TILEGX_IMM16_X0_HW2_LAST: + case R_TILEGX_IMM16_X1_HW2_LAST: + if ((input_section->flags & SEC_ALLOC) == 0) + break; + + if ((info->shared + && (h == NULL + || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT + || h->root.type != bfd_link_hash_undefweak) + && (! howto->pc_relative + || !SYMBOL_CALLS_LOCAL (info, h))) + || (!info->shared + && h != NULL + && h->dynindx != -1 + && !h->non_got_ref + && ((h->def_dynamic + && !h->def_regular) + || h->root.type == bfd_link_hash_undefweak + || h->root.type == bfd_link_hash_undefined))) + { + Elf_Internal_Rela outrel; + bfd_boolean skip, relocate = FALSE; + + /* When generating a shared object, these relocations + are copied into the output file to be resolved at run + time. */ + + BFD_ASSERT (sreloc != NULL); + + skip = 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) + skip = TRUE, relocate = TRUE; + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + + switch (r_type) + { + case R_TILEGX_64_PCREL: + case R_TILEGX_32_PCREL: + case R_TILEGX_16_PCREL: + case R_TILEGX_8_PCREL: + /* If the symbol is not dynamic, we should not keep + a dynamic relocation. But an .rela.* slot has been + allocated for it, output R_TILEGX_NONE. + FIXME: Add code tracking needed dynamic relocs as + e.g. i386 has. */ + if (h->dynindx == -1) + skip = TRUE, relocate = TRUE; + break; + } + + if (skip) + memset (&outrel, 0, sizeof outrel); + /* h->dynindx may be -1 if the symbol was marked to + become local. */ + else if (h != NULL && + h->dynindx != -1 + && (! is_plt + || !info->shared + || !SYMBOLIC_BIND (info, h) + || !h->def_regular)) + { + BFD_ASSERT (h->dynindx != -1); + outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type); + outrel.r_addend = rel->r_addend; + } + else + { + if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64) + { + outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, + R_TILEGX_RELATIVE); + outrel.r_addend = relocation + rel->r_addend; + } + else + { + long indx; + + outrel.r_addend = relocation + rel->r_addend; + + if (is_plt) + sec = htab->elf.splt; + + 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->elf.text_index_section; + indx = elf_section_data (osec)->dynindx; + } + + /* FIXME: we really should be able to link non-pic + shared libraries. */ + if (indx == 0) + { + BFD_FAIL (); + (*_bfd_error_handler) + (_("%B: probably compiled without -fPIC?"), + input_bfd); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx, + r_type); + } + } + + tilegx_elf_append_rela (output_bfd, sreloc, &outrel); + + /* This reloc will be computed at runtime, so there's no + need to do anything now. */ + if (! relocate) + continue; + } + break; + + case R_TILEGX_IMM16_X0_HW0_TLS_LE: + case R_TILEGX_IMM16_X1_HW0_TLS_LE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + if (info->shared) + { + Elf_Internal_Rela outrel; + bfd_boolean skip; + + BFD_ASSERT (sreloc != NULL); + skip = 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) + skip = TRUE; + outrel.r_offset += (input_section->output_section->vma + + input_section->output_offset); + if (skip) + memset (&outrel, 0, sizeof outrel); + else + { + outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type); + outrel.r_addend = relocation - dtpoff_base (info) + + rel->r_addend; + } + + tilegx_elf_append_rela (output_bfd, sreloc, &outrel); + continue; + } + relocation = tpoff (info, relocation); + break; + + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + r_type = tilegx_elf_tls_transition (info, r_type, h == NULL, + input_section->sec_flg0); + tls_type = GOT_UNKNOWN; + if (h == NULL && local_got_offsets) + tls_type = + _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx]; + else if (h != NULL) + { + tls_type = tilegx_elf_hash_entry(h)->tls_type; + if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) + r_type = (!input_section->sec_flg0 + ? tilegx_tls_translate_to_le (r_type) + : tilegx_tls_translate_to_ie (r_type)); + } + + if (tls_type == GOT_TLS_IE) + r_type = tilegx_tls_translate_to_ie (r_type); + + if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE + || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE + || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE + || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE + || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE + || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE) + { + relocation = tpoff (info, relocation); + break; + } + + if (h != NULL) + { + off = h->got.offset; + h->got.offset |= 1; + } + else + { + BFD_ASSERT (local_got_offsets != NULL); + off = local_got_offsets[r_symndx]; + local_got_offsets[r_symndx] |= 1; + } + + if (htab->elf.sgot == NULL) + abort (); + + if ((off & 1) != 0) + off &= ~1; + else + { + Elf_Internal_Rela outrel; + int indx = 0; + bfd_boolean need_relocs = FALSE; + + if (htab->elf.srelgot == NULL) + abort (); + + if (h != NULL) + { + bfd_boolean dyn; + dyn = htab->elf.dynamic_sections_created; + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) + && (!info->shared + || !SYMBOL_REFERENCES_LOCAL (info, h))) + { + indx = h->dynindx; + } + } + + /* The GOT entries have not been initialized yet. Do it + now, and emit any relocations. */ + if ((info->shared || indx != 0) + && (h == NULL + || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT + || h->root.type != bfd_link_hash_undefweak)) + need_relocs = TRUE; + + switch (r_type) + { + case R_TILEGX_IMM16_X0_HW0_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_TLS_IE: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + if (need_relocs) { + TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, + htab->elf.sgot->contents + off); + outrel.r_offset = (htab->elf.sgot->output_section->vma + + htab->elf.sgot->output_offset + off); + outrel.r_addend = 0; + if (indx == 0) + outrel.r_addend = relocation - dtpoff_base (info); + outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, + TILEGX_ELF_TPOFF_RELOC (htab)); + tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); + } else { + TILEGX_ELF_PUT_WORD (htab, output_bfd, + tpoff (info, relocation), + htab->elf.sgot->contents + off); + } + break; + + case R_TILEGX_IMM16_X0_HW0_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_TLS_GD: + case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + if (need_relocs) { + outrel.r_offset = (htab->elf.sgot->output_section->vma + + htab->elf.sgot->output_offset + off); + outrel.r_addend = 0; + outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, + TILEGX_ELF_DTPMOD_RELOC (htab)); + TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, + htab->elf.sgot->contents + off); + tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); + if (indx == 0) + { + BFD_ASSERT (! unresolved_reloc); + TILEGX_ELF_PUT_WORD (htab, output_bfd, + relocation - dtpoff_base (info), + (htab->elf.sgot->contents + off + + TILEGX_ELF_WORD_BYTES (htab))); + } + else + { + TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, + (htab->elf.sgot->contents + off + + TILEGX_ELF_WORD_BYTES (htab))); + outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, + TILEGX_ELF_DTPOFF_RELOC (htab)); + outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab); + tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); + } + } + + else { + /* If we are not emitting relocations for a + general dynamic reference, then we must be in a + static link or an executable link with the + symbol binding locally. Mark it as belonging + to module 1, the executable. */ + TILEGX_ELF_PUT_WORD (htab, output_bfd, 1, + htab->elf.sgot->contents + off ); + TILEGX_ELF_PUT_WORD (htab, output_bfd, + relocation - dtpoff_base (info), + htab->elf.sgot->contents + off + + TILEGX_ELF_WORD_BYTES (htab)); + } + break; + } + } + + if (off >= (bfd_vma) -2) + abort (); + + relocation = off - got_base; + unresolved_reloc = FALSE; + howto = tilegx_elf_howto_table + r_type; + break; + + default: + break; + } + + /* Dynamic relocs are not propagated for SEC_DEBUGGING sections + because such sections are not SEC_ALLOC and thus ld.so will + not process them. */ + if (unresolved_reloc + && !((input_section->flags & SEC_DEBUGGING) != 0 + && h->def_dynamic) + && _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset) != (bfd_vma) -1) + (*_bfd_error_handler) + (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), + input_bfd, + input_section, + (long) rel->r_offset, + howto->name, + h->root.root.string); + + r = bfd_reloc_continue; + + /* Get the operand creation function, if any. */ + create_func = reloc_to_create_func[r_type]; + if (create_func == NULL) + { + r = _bfd_final_link_relocate (howto, input_bfd, input_section, + contents, rel->r_offset, + relocation, rel->r_addend); + } + else + { + if (howto->pc_relative) + { + relocation -= + input_section->output_section->vma + input_section->output_offset; + if (howto->pcrel_offset) + relocation -= rel->r_offset; + } + + bfd_byte *data; + + /* Add the relocation addend if any to the final target value */ + relocation += rel->r_addend; + + /* Do basic range checking */ + r = bfd_check_overflow (howto->complain_on_overflow, + howto->bitsize, + howto->rightshift, + TILEGX_ELF_WORD_BYTES (htab) * 8, + relocation); + + /* + * Write the relocated value out into the raw section data. + * Don't put a relocation out in the .rela section. + */ + tilegx_bundle_bits mask = create_func(-1); + tilegx_bundle_bits value = create_func(relocation >> howto->rightshift); + + /* Only touch bytes while the mask is not 0, so we + don't write to out of bounds memory if this is actually + a 16-bit switch instruction. */ + for (data = contents + rel->r_offset; mask != 0; data++) + { + bfd_byte byte_mask = (bfd_byte)mask; + *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask); + mask >>= 8; + value >>= 8; + } + } + + if (r != bfd_reloc_ok) + { + const char *msg = NULL; + + switch (r) + { + case bfd_reloc_overflow: + r = info->callbacks->reloc_overflow + (info, (h ? &h->root : NULL), name, howto->name, + (bfd_vma) 0, input_bfd, input_section, rel->r_offset); + break; + + case bfd_reloc_undefined: + r = info->callbacks->undefined_symbol + (info, name, 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, name, 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. */ + +bfd_boolean +tilegx_elf_finish_dynamic_symbol (bfd *output_bfd, + struct bfd_link_info *info, + struct elf_link_hash_entry *h, + Elf_Internal_Sym *sym) +{ + struct tilegx_elf_link_hash_table *htab; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + + if (h->plt.offset != (bfd_vma) -1) + { + asection *splt; + asection *srela; + asection *sgotplt; + Elf_Internal_Rela rela; + bfd_byte *loc; + bfd_vma r_offset; + const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); + + + int rela_index; + + /* This symbol has an entry in the PLT. Set it up. */ + + BFD_ASSERT (h->dynindx != -1); + + splt = htab->elf.splt; + srela = htab->elf.srelplt; + sgotplt = htab->elf.sgotplt; + + if (splt == NULL || srela == NULL) + abort (); + + /* Fill in the entry in the procedure linkage table. */ + rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt, + h->plt.offset, &r_offset); + + /* Fill in the entry in the global offset table, which initially points + to the beginning of the plt. */ + TILEGX_ELF_PUT_WORD (htab, output_bfd, + splt->output_section->vma + splt->output_offset, + sgotplt->contents + r_offset); + + /* Fill in the entry in the .rela.plt section. */ + rela.r_offset = (sgotplt->output_section->vma + + sgotplt->output_offset + + r_offset); + rela.r_addend = 0; + rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT); + + loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab); + bed->s->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; + /* 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; + } + } + + if (h->got.offset != (bfd_vma) -1 + && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD + && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE) + { + asection *sgot; + asection *srela; + Elf_Internal_Rela rela; + + /* This symbol has an entry in the GOT. Set it up. */ + + sgot = htab->elf.sgot; + srela = htab->elf.srelgot; + 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 -Bsymbolic link, and the symbol is defined + locally, we just want to emit a RELATIVE reloc. Likewise if + the symbol was forced to be local because of a version file. + The entry in the global offset table will already have been + initialized in the relocate_section function. */ + if (info->shared + && (info->symbolic || h->dynindx == -1) + && h->def_regular) + { + asection *sec = h->root.u.def.section; + rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE); + rela.r_addend = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else + { + rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT); + rela.r_addend = 0; + } + + TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, + sgot->contents + (h->got.offset & ~(bfd_vma) 1)); + tilegx_elf_append_rela (output_bfd, srela, &rela); + } + + if (h->needs_copy) + { + asection *s; + Elf_Internal_Rela rela; + + /* This symbols needs a copy reloc. Set it up. */ + BFD_ASSERT (h->dynindx != -1); + + s = htab->srelbss; + 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 = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY); + rela.r_addend = 0; + tilegx_elf_append_rela (output_bfd, s, &rela); + } + + /* Mark some specially defined symbols as absolute. */ + if (h == htab->elf.hdynamic + || (h == htab->elf.hgot || h == htab->elf.hplt)) + sym->st_shndx = SHN_ABS; + + return TRUE; +} + +/* Finish up the dynamic sections. */ + +static bfd_boolean +tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, + bfd *dynobj, asection *sdyn, + asection *splt ATTRIBUTE_UNUSED) +{ + struct tilegx_elf_link_hash_table *htab; + const struct elf_backend_data *bed; + bfd_byte *dyncon, *dynconend; + size_t dynsize; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + bed = get_elf_backend_data (output_bfd); + dynsize = bed->s->sizeof_dyn; + dynconend = sdyn->contents + sdyn->size; + + for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) + { + Elf_Internal_Dyn dyn; + asection *s; + + bed->s->swap_dyn_in (dynobj, dyncon, &dyn); + + switch (dyn.d_tag) + { + case DT_PLTGOT: + s = htab->elf.sgotplt; + dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; + break; + case DT_JMPREL: + s = htab->elf.srelplt; + dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; + break; + case DT_PLTRELSZ: + s = htab->elf.srelplt; + dyn.d_un.d_val = s->size; + break; + default: + continue; + } + + bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); + } + return TRUE; +} + +bfd_boolean +tilegx_elf_finish_dynamic_sections (bfd *output_bfd, + struct bfd_link_info *info) +{ + bfd *dynobj; + asection *sdyn; + struct tilegx_elf_link_hash_table *htab; + size_t pad_size; + + htab = tilegx_elf_hash_table (info); + BFD_ASSERT (htab != NULL); + dynobj = htab->elf.dynobj; + + sdyn = bfd_get_linker_section (dynobj, ".dynamic"); + + if (elf_hash_table (info)->dynamic_sections_created) + { + asection *splt; + bfd_boolean ret; + + splt = htab->elf.splt; + BFD_ASSERT (splt != NULL && sdyn != NULL); + + ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt); + + if (ret != TRUE) + return ret; + + /* Fill in the head and tail entries in the procedure linkage table. */ + if (splt->size > 0) + { + memcpy (splt->contents, + ABI_64_P (output_bfd) ? + tilegx64_plt0_entry : tilegx32_plt0_entry, + PLT_HEADER_SIZE); + + memcpy (splt->contents + splt->size + - PLT_ENTRY_SIZE + PLT_HEADER_SIZE, + ABI_64_P (output_bfd) ? + tilegx64_plt_tail_entry : tilegx32_plt_tail_entry, + PLT_TAIL_SIZE); + /* Add padding so that the plt section is a multiple of its + entry size. */ + pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE; + memset (splt->contents + splt->size - pad_size, 0, pad_size); + } + + elf_section_data (splt->output_section)->this_hdr.sh_entsize + = PLT_ENTRY_SIZE; + } + + if (htab->elf.sgotplt) + { + if (bfd_is_abs_section (htab->elf.sgotplt->output_section)) + { + (*_bfd_error_handler) + (_("discarded output section: `%A'"), htab->elf.sgotplt); + return FALSE; + } + + if (htab->elf.sgotplt->size > 0) + { + /* Write the first two entries in .got.plt, needed for the dynamic + linker. */ + TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1, + htab->elf.sgotplt->contents); + TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0, + htab->elf.sgotplt->contents + + GOT_ENTRY_SIZE (htab)); + } + + elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize = + GOT_ENTRY_SIZE (htab); + } + + if (htab->elf.sgot) + { + if (htab->elf.sgot->size > 0) + { + /* Set the first entry in the global offset table to the address of + the dynamic section. */ + bfd_vma val = (sdyn ? + sdyn->output_section->vma + sdyn->output_offset : + 0); + TILEGX_ELF_PUT_WORD (htab, output_bfd, val, + htab->elf.sgot->contents); + } + + elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = + GOT_ENTRY_SIZE (htab); + } + + return TRUE; +} + + + +/* Return address for Ith PLT stub in section PLT, for relocation REL + or (bfd_vma) -1 if it should not be included. */ + +bfd_vma +tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt, + const arelent *rel ATTRIBUTE_UNUSED) +{ + return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE; +} + +enum elf_reloc_type_class +tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, + const asection *rel_sec ATTRIBUTE_UNUSED, + const Elf_Internal_Rela *rela) +{ + switch ((int) TILEGX_ELF_R_TYPE (rela->r_info)) + { + case R_TILEGX_RELATIVE: + return reloc_class_relative; + case R_TILEGX_JMP_SLOT: + return reloc_class_plt; + case R_TILEGX_COPY: + return reloc_class_copy; + default: + return reloc_class_normal; + } +} + +int +tilegx_additional_program_headers (bfd *abfd, + struct bfd_link_info *info ATTRIBUTE_UNUSED) +{ + /* Each .intrpt section specified by the user adds another PT_LOAD + header since the sections are discontiguous. */ + static const char intrpt_sections[4][9] = + { + ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3" + }; + int count = 0; + int i; + + for (i = 0; i < 4; i++) + { + asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]); + if (sec != NULL && (sec->flags & SEC_LOAD) != 0) + ++count; + } + + /* Add four "padding" headers in to leave room in case a custom linker + script does something fancy. Otherwise ld complains that it ran + out of program headers and refuses to link. */ + count += 4; + + return count; +} + + +bfd_boolean +_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) +{ + const char *targ1 = bfd_get_target (ibfd); + const char *targ2 = bfd_get_target (obfd); + + if (strcmp (targ1, targ2) != 0) + { + (*_bfd_error_handler) + (_("%B: Cannot link together %s and %s objects."), + ibfd, targ1, targ2); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + return TRUE; +} |