5ec1b87a26
Introduce TLS descriptors for i386 and x86_64. * common.h (DT_TLSDESC_GOT, DT_TLSDESC_PLT): New. * i386.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL, R_386_TLS_DESC): New. * x86-64.h (R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC): New. bfd/ChangeLog: Introduce TLS descriptors for i386 and x86_64. * reloc.c (BFD_RELOC_386_TLS_GOTDESC, BFD_RELOC_386_TLS_DESC, BFD_RELOC_386_TLS_DESC_CALL, BFD_RELOC_X86_64_GOTPC32_TLSDESC, BFD_RELOC_X86_64_TLSDESC, BFD_RELOC_X86_64_TLSDESC_CALL): New. * libbfd.h, bfd-in2.h: Rebuilt. * elf32-i386.c (elf_howto_table): New relocations. (R_386_tls): Adjust. (elf_i386_reloc_type_lookup): Map new relocations. (GOT_TLS_GDESC, GOT_TLS_GD_BOTH_P): New macros. (GOT_TLS_GD_P, GOT_TLS_GDESC_P, GOT_TLS_GD_ANY_P): New macros. (struct elf_i386_link_hash_entry): Add tlsdesc_got field. (struct elf_i386_obj_tdata): Add local_tlsdesc_gotent field. (elf_i386_local_tlsdesc_gotent): New macro. (struct elf_i386_link_hash_table): Add sgotplt_jump_table_size. (elf_i386_compute_jump_table_size): New macro. (link_hash_newfunc): Initialize tlsdesc_got. (elf_i386_link_hash_table_create): Set sgotplt_jump_table_size. (elf_i386_tls_transition): Handle R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL. (elf_i386_check_relocs): Likewise. Allocate space for local_tlsdesc_gotent. (elf_i386_gc_sweep_hook): Handle R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL. (allocate_dynrelocs): Count function PLT relocations. Reserve space for TLS descriptors and relocations. (elf_i386_size_dynamic_sections): Reserve space for TLS descriptors and relocations. Set up sgotplt_jump_table_size. Don't zero reloc_count in srelplt. (elf_i386_always_size_sections): New. Set up _TLS_MODULE_BASE_. (elf_i386_relocate_section): Handle R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL. (elf_i386_finish_dynamic_symbol): Use GOT_TLS_GD_ANY_P. (elf_backend_always_size_sections): Define. * elf64-x86-64.c (x86_64_elf_howto): Add R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC, R_X86_64_TLSDESC_CALL. (R_X86_64_standard): Adjust. (x86_64_reloc_map): Map new relocs. (elf64_x86_64_rtype_to_howto): New, split out of... (elf64_x86_64_info_to_howto): ... this function, and... (elf64_x86_64_reloc_type_lookup): ... use it to map elf_reloc_val. (GOT_TLS_GDESC, GOT_TLS_GD_BOTH_P): New macros. (GOT_TLS_GD_P, GOT_TLS_GDESC_P, GOT_TLS_GD_ANY_P): New macros. (struct elf64_x86_64_link_hash_entry): Add tlsdesc_got field. (struct elf64_x86_64_obj_tdata): Add local_tlsdesc_gotent field. (elf64_x86_64_local_tlsdesc_gotent): New macro. (struct elf64_x86_64_link_hash_table): Add tlsdesc_plt, tlsdesc_got and sgotplt_jump_table_size fields. (elf64_x86_64_compute_jump_table_size): New macro. (link_hash_newfunc): Initialize tlsdesc_got. (elf64_x86_64_link_hash_table_create): Initialize new fields. (elf64_x86_64_tls_transition): Handle R_X86_64_GOTPC32_TLSDESC and R_X86_64_TLSDESC_CALL. (elf64_x86_64_check_relocs): Likewise. Allocate space for local_tlsdesc_gotent. (elf64_x86_64_gc_sweep_hook): Handle R_X86_64_GOTPC32_TLSDESC and R_X86_64_TLSDESC_CALL. (allocate_dynrelocs): Count function PLT relocations. Reserve space for TLS descriptors and relocations. (elf64_x86_64_size_dynamic_sections): Reserve space for TLS descriptors and relocations. Set up sgotplt_jump_table_size, tlsdesc_plt and tlsdesc_got. Make room for them. Don't zero reloc_count in srelplt. Add dynamic entries for DT_TLSDESC_PLT and DT_TLSDESC_GOT. (elf64_x86_64_always_size_sections): New. Set up _TLS_MODULE_BASE_. (elf64_x86_64_relocate_section): Handle R_386_TLS_GOTDESC and R_386_TLS_DESC_CALL. (elf64_x86_64_finish_dynamic_symbol): Use GOT_TLS_GD_ANY_P. (elf64_x86_64_finish_dynamic_sections): Set DT_TLSDESC_PLT and DT_TLSDESC_GOT. Set up TLS descriptor lazy resolver PLT entry. (elf_backend_always_size_sections): Define. binutils/ChangeLog: Introduce TLS descriptors for i386 and x86_64. * readelf.c (get_dynamic_type): Handle DT_TLSDESC_GOT and DT_TLSDESC_PLT. gas/ChangeLog: Introduce TLS descriptors for i386 and x86_64. * config/tc-i386.c (tc_i386_fix_adjustable): Handle BFD_RELOC_386_TLS_GOTDESC, BFD_RELOC_386_TLS_DESC_CALL, BFD_RELOC_X86_64_GOTPC32_TLSDESC, BFD_RELOC_X86_64_TLSDESC_CALL. (optimize_disp): Emit fix up for BFD_RELOC_386_TLS_DESC_CALL and BFD_RELOC_X86_64_TLSDESC_CALL immediately, and clear the displacement bits. (build_modrm_byte): Set up zero modrm for TLS desc calls. (lex_got): Handle @tlsdesc and @tlscall. (md_apply_fix, tc_gen_reloc): Handle the new relocations. ld/testsuite/ChangeLog: Introduce TLS descriptors for i386 and x86_64. * ld-i386/i386.exp: Run on x86_64-*-linux* and amd64-*-linux*. Add new tests. * ld-i386/pcrel16.d: Add -melf_i386. * ld-i386/pcrel8.d: Likewise. * ld-i386/tlsbindesc.dd: New. * ld-i386/tlsbindesc.rd: New. * ld-i386/tlsbindesc.s: New. * ld-i386/tlsbindesc.sd: New. * ld-i386/tlsbindesc.td: New. * ld-i386/tlsdesc.dd: New. * ld-i386/tlsdesc.rd: New. * ld-i386/tlsdesc.s: New. * ld-i386/tlsdesc.sd: New. * ld-i386/tlsdesc.td: New. * ld-i386/tlsgdesc.dd: New. * ld-i386/tlsgdesc.rd: New. * ld-i386/tlsgdesc.s: New. * ld-x86-64/x86-64.exp: Run new tests. * ld-x86-64/tlsbindesc.dd: New. * ld-x86-64/tlsbindesc.rd: New. * ld-x86-64/tlsbindesc.s: New. * ld-x86-64/tlsbindesc.sd: New. * ld-x86-64/tlsbindesc.td: New. * ld-x86-64/tlsdesc.dd: New. * ld-x86-64/tlsdesc.pd: New. * ld-x86-64/tlsdesc.rd: New. * ld-x86-64/tlsdesc.s: New. * ld-x86-64/tlsdesc.sd: New. * ld-x86-64/tlsdesc.td: New. * ld-x86-64/tlsgdesc.dd: New. * ld-x86-64/tlsgdesc.rd: New. * ld-x86-64/tlsgdesc.s: New.
79 lines
4.0 KiB
C
79 lines
4.0 KiB
C
/* x86_64 ELF support for BFD.
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Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
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Free Software Foundation, Inc.
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Contributed by Jan Hubicka <jh@suse.cz>
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef _ELF_X86_64_H
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#define _ELF_X86_64_H
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#include "elf/reloc-macros.h"
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START_RELOC_NUMBERS (elf_x86_64_reloc_type)
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RELOC_NUMBER (R_X86_64_NONE, 0) /* No reloc */
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RELOC_NUMBER (R_X86_64_64, 1) /* Direct 64 bit */
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RELOC_NUMBER (R_X86_64_PC32, 2) /* PC relative 32 bit signed */
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RELOC_NUMBER (R_X86_64_GOT32, 3) /* 32 bit GOT entry */
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RELOC_NUMBER (R_X86_64_PLT32, 4) /* 32 bit PLT address */
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RELOC_NUMBER (R_X86_64_COPY, 5) /* Copy symbol at runtime */
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RELOC_NUMBER (R_X86_64_GLOB_DAT, 6) /* Create GOT entry */
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RELOC_NUMBER (R_X86_64_JUMP_SLOT,7) /* Create PLT entry */
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RELOC_NUMBER (R_X86_64_RELATIVE, 8) /* Adjust by program base */
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RELOC_NUMBER (R_X86_64_GOTPCREL, 9) /* 32 bit signed pc relative
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offset to GOT entry */
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RELOC_NUMBER (R_X86_64_32, 10) /* Direct 32 bit zero extended */
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RELOC_NUMBER (R_X86_64_32S, 11) /* Direct 32 bit sign extended */
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RELOC_NUMBER (R_X86_64_16, 12) /* Direct 16 bit zero extended */
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RELOC_NUMBER (R_X86_64_PC16, 13) /* 16 bit sign extended pc relative*/
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RELOC_NUMBER (R_X86_64_8, 14) /* Direct 8 bit sign extended */
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RELOC_NUMBER (R_X86_64_PC8, 15) /* 8 bit sign extended pc relative*/
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RELOC_NUMBER (R_X86_64_DTPMOD64, 16) /* ID of module containing symbol */
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RELOC_NUMBER (R_X86_64_DTPOFF64, 17) /* Offset in TLS block */
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RELOC_NUMBER (R_X86_64_TPOFF64, 18) /* Offset in initial TLS block */
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RELOC_NUMBER (R_X86_64_TLSGD, 19) /* PC relative offset to GD GOT block */
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RELOC_NUMBER (R_X86_64_TLSLD, 20) /* PC relative offset to LD GOT block */
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RELOC_NUMBER (R_X86_64_DTPOFF32, 21) /* Offset in TLS block */
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RELOC_NUMBER (R_X86_64_GOTTPOFF, 22) /* PC relative offset to IE GOT entry */
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RELOC_NUMBER (R_X86_64_TPOFF32, 23) /* Offset in initial TLS block */
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RELOC_NUMBER (R_X86_64_PC64, 24) /* PC relative 64 bit */
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RELOC_NUMBER (R_X86_64_GOTOFF64, 25) /* 64 bit offset to GOT */
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RELOC_NUMBER (R_X86_64_GOTPC32, 26) /* 32 bit signed pc relative
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offset to GOT */
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/* 27 .. 33 */
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RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 34)
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/* 32 bit signed pc relative
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offset to TLS descriptor
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in the GOT. */
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RELOC_NUMBER (R_X86_64_TLSDESC_CALL, 35) /* Relaxable call through TLS
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descriptor. */
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RELOC_NUMBER (R_X86_64_TLSDESC, 36) /* 2x64-bit TLS descriptor. */
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RELOC_NUMBER (R_X86_64_GNU_VTINHERIT, 250) /* GNU C++ hack */
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RELOC_NUMBER (R_X86_64_GNU_VTENTRY, 251) /* GNU C++ hack */
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END_RELOC_NUMBERS (R_X86_64_max)
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/* Processor specific section types. */
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#define SHT_X86_64_UNWIND 0x70000001 /* unwind information */
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/* Like SHN_COMMON but the symbol will be allocated in the .lbss
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section. */
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#define SHN_X86_64_LCOMMON 0xff02
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#define SHF_X86_64_LARGE 0x10000000
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#endif
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