mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
5bc71c2a6b
For add %reg1, name@gottpoff(%rip), %reg2 and add name@gottpoff(%rip), %reg1, %reg2 add #define R_X86_64_CODE_6_GOTTPOFF 50 if the instruction starts at 6 bytes before the relocation offset. They are similar to R_X86_64_GOTTPOFF. Linker can covert GOTTPOFF to add $name@tpoff, %reg1, %reg2 Rewrite fx_tcbit, fx_tcbit2 and fx_tcbit3 usage to generate R_X86_64_GOTPCRELX, R_X86_64_REX_GOTPCRELX, R_X86_64_CODE_4_GOTPCRELX, R_X86_64_CODE_4_GOTTPOFF, R_X86_64_CODE_4_GOTPC32_TLSDESC and R_X86_64_CODE_6_GOTTPOFF. NB: There is no need to check BFD_RELOC_X86_64_CODE_4_GOTTPOFF in md_assemble since there is only BFD_RELOC_X86_64_GOTTPOFF at this stage, which will be converted to BFD_RELOC_X86_64_CODE_4_GOTTPOFF or BFD_RELOC_X86_64_CODE_6_GOTTPOFF in i386_validate_fix. 5 relocations: #define R_X86_64_CODE_5_GOTPCRELX 46 #define R_X86_64_CODE_5_GOTTPOFF 47 #define R_X86_64_CODE_5_GOTPC32_TLSDESC 48 #define R_X86_64_CODE_6_GOTPCRELX 49 #define R_X86_64_CODE_6_GOTPC32_TLSDESC 51 are added for completeness and they are unused. bfd/ * elf64-x86-64.c (x86_64_elf_howto_table): Add R_X86_64_CODE_5_GOTPCRELX, R_X86_64_CODE_5_GOTTPOFF, R_X86_64_CODE_5_GOTPC32_TLSDESC, R_X86_64_CODE_6_GOTPCRELX, R_X86_64_CODE_6_GOTTPOFF and R_X86_64_CODE_6_GOTPC32_TLSDESC. (R_X86_64_standard): Updated. (x86_64_reloc_map): Add R_X86_64_CODE_5_GOTPCRELX, R_X86_64_CODE_5_GOTTPOFF, R_X86_64_CODE_5_GOTPC32_TLSDESC, R_X86_64_CODE_6_GOTPCRELX, R_X86_64_CODE_6_GOTTPOFF and R_X86_64_CODE_6_GOTPC32_TLSDESC. (elf_x86_64_check_tls_transition): Handle R_X86_64_CODE_6_GOTTPOFF. (elf_x86_64_tls_transition): Likewise. (elf_x86_64_scan_relocs): Handle R_X86_64_CODE_6_GOTTPOFF. Issue an error for R_X86_64_CODE_5_GOTPCRELX, R_X86_64_CODE_5_GOTTPOFF, R_X86_64_CODE_5_GOTPC32_TLSDESC, R_X86_64_CODE_6_GOTPCRELX and R_X86_64_CODE_6_GOTPC32_TLSDESC. (elf_x86_64_relocate_section): Handle R_X86_64_CODE_6_GOTTPOFF. * reloc.c (bfd_reloc_code_real): Add BFD_RELOC_X86_64_CODE_5_GOTPCRELX, BFD_RELOC_X86_64_CODE_5_GOTTPOFF, BFD_RELOC_X86_64_CODE_5_GOTPC32_TLSDESC, BFD_RELOC_X86_64_CODE_6_GOTPCRELX, BFD_RELOC_X86_64_CODE_6_GOTTPOFF and BFD_RELOC_X86_64_CODE_6_GOTPC32_TLSDESC. * bfd-in2.h: Regenerated. * libbfd.h: Likewise. elfcpp/ * x86_64.h (R_X86_64_CODE_5_GOTPCRELX): New. (R_X86_64_CODE_5_GOTTPOFF): Likewise. (R_X86_64_CODE_5_GOTPC32_TLSDESC): Likewise. (R_X86_64_CODE_6_GOTPCRELX): Likewise. (R_X86_64_CODE_6_GOTTPOFF): Likewise. (R_X86_64_CODE_6_GOTPC32_TLSDESC): Likewise. gas/ * config/tc-i386.c (tc_i386_fix_adjustable): Handle BFD_RELOC_X86_64_CODE_6_GOTTPOFF. (md_assemble): Don't check BFD_RELOC_X86_64_CODE_4_GOTTPOFF. Allow "add %reg1, foo@gottpoff(%rip), %reg2". (output_disp): Handle BFD_RELOC_X86_64_CODE_6_GOTTPOFF. Rewrite setting fx_tcbitX bits for BFD_RELOC_X86_64_GOTTPOFF, BFD_RELOC_X86_64_GOTPC32_TLSDESC and BFD_RELOC_32_PCREL. (md_apply_fix): Handle BFD_RELOC_X86_64_CODE_6_GOTTPOFF. (i386_validate_fix): Rewrite fx_tcbitX bit checking for BFD_RELOC_X86_64_GOTTPOFF, BFD_RELOC_X86_64_GOTPC32_TLSDESC and BFD_RELOC_32_PCREL. (tc_gen_reloc): Handle BFD_RELOC_X86_64_CODE_6_GOTTPOFF. * testsuite/gas/i386/x86-64-gottpoff.d: Updated. * testsuite/gas/i386/x86-64-gottpoff.s: Add tests for "add %reg1, foo@gottpoff(%rip), %reg2" and "add foo@gottpoff(%rip), %reg, %reg2". gold/ * x86_64.cc (Target_x86_64::optimize_tls_reloc): Handle R_X86_64_CODE_6_GOTTPOFF. (Target_x86_64::Scan::get_reference_flags): Likewise. (Target_x86_64::Scan::local): Likewise. (Target_x86_64::Scan::global): Likewise. (Target_x86_64::Relocate::relocate): Likewise. (Target_x86_64::Relocate::relocate_tls): Likewise. (Target_x86_64::Relocate::tls_ie_to_le): Handle. R_X86_64_CODE_6_GOTTPOFF. * testsuite/x86_64_ie_to_le.s: Add tests for "add %reg1, foo@gottpoff(%rip), %reg2" and "add foo@gottpoff(%rip), %reg, %reg2". * testsuite/x86_64_ie_to_le.sh: Updated. include/ * elf/x86-64.h (elf_x86_64_reloc_type): Add R_X86_64_CODE_5_GOTPCRELX, R_X86_64_CODE_5_GOTTPOFF, R_X86_64_CODE_5_GOTPC32_TLSDESC, R_X86_64_CODE_6_GOTPCRELX, R_X86_64_CODE_6_GOTTPOFF and R_X86_64_CODE_6_GOTPC32_TLSDESC. ld/ * testsuite/ld-x86-64/tlsbindesc.s: Add R_X86_64_CODE_6_GOTTPOFF tests. * testsuite/ld-x86-64/tlsbindesc.d: Updated. * testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
151 lines
6.5 KiB
C++
151 lines
6.5 KiB
C++
// x86-64.h -- ELF definitions specific to EM_X86_64 -*- C++ -*-
|
|
|
|
// Copyright (C) 2006-2024 Free Software Foundation, Inc.
|
|
// Written by Andrew Chatham.
|
|
|
|
// This file is part of elfcpp.
|
|
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Library General Public License
|
|
// as published by the Free Software Foundation; either version 2, or
|
|
// (at your option) any later version.
|
|
|
|
// In addition to the permissions in the GNU Library General Public
|
|
// License, the Free Software Foundation gives you unlimited
|
|
// permission to link the compiled version of this file into
|
|
// combinations with other programs, and to distribute those
|
|
// combinations without any restriction coming from the use of this
|
|
// file. (The Library Public License restrictions do apply in other
|
|
// respects; for example, they cover modification of the file, and
|
|
/// distribution when not linked into a combined executable.)
|
|
|
|
// 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
|
|
// Library General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU Library 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.
|
|
|
|
#ifndef ELFCPP_X86_64_H
|
|
#define ELFCPP_X86_64_H
|
|
|
|
namespace elfcpp
|
|
{
|
|
|
|
// Documentation is taken from
|
|
// http://www.x86-64.org/documentation/abi-0.98.pdf
|
|
// elf.h
|
|
// Documentation for the TLS relocs is taken from
|
|
// http://people.redhat.com/drepper/tls.pdf
|
|
// http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
|
|
|
|
enum
|
|
{
|
|
R_X86_64_NONE = 0, // No reloc
|
|
R_X86_64_64 = 1, // Direct 64 bit
|
|
R_X86_64_PC32 = 2, // PC relative 32 bit signed
|
|
R_X86_64_GOT32 = 3, // 32 bit GOT entry
|
|
R_X86_64_PLT32 = 4, // 32 bit PLT address
|
|
R_X86_64_COPY = 5, // Copy symbol at runtime
|
|
R_X86_64_GLOB_DAT = 6, // Create GOT entry
|
|
R_X86_64_JUMP_SLOT = 7, // Create PLT entry
|
|
R_X86_64_RELATIVE = 8, // Adjust by program base
|
|
R_X86_64_GOTPCREL = 9, // 32 bit signed PC relative offset to GOT
|
|
R_X86_64_32 = 10, // Direct 32 bit zero extended
|
|
R_X86_64_32S = 11, // Direct 32 bit sign extended
|
|
R_X86_64_16 = 12, // Direct 16 bit zero extended
|
|
R_X86_64_PC16 = 13, // 16 bit sign extended pc relative
|
|
R_X86_64_8 = 14, // Direct 8 bit sign extended
|
|
R_X86_64_PC8 = 15, // 8 bit sign extended pc relative
|
|
|
|
// TLS relocations
|
|
R_X86_64_DTPMOD64 = 16, // ID of module containing symbol
|
|
R_X86_64_DTPOFF64 = 17, // Offset in module's TLS block
|
|
R_X86_64_TPOFF64 = 18, // Offset in initial TLS block
|
|
R_X86_64_TLSGD = 19, // 32 bit signed PC relative offset to two
|
|
// GOT entries for GD symbol
|
|
R_X86_64_TLSLD = 20, // 32 bit signed PC relative offset to two
|
|
// GOT entries for LD symbol
|
|
R_X86_64_DTPOFF32 = 21, // Offset in TLS block
|
|
R_X86_64_GOTTPOFF = 22, // 32 bit signed PC relative offset to GOT
|
|
// entry for IE symbol
|
|
R_X86_64_TPOFF32 = 23, // Offset in initial TLS block
|
|
|
|
R_X86_64_PC64 = 24, // 64-bit PC relative
|
|
R_X86_64_GOTOFF64 = 25, // 64-bit GOT offset
|
|
R_X86_64_GOTPC32 = 26, // 32-bit PC relative offset to GOT
|
|
|
|
R_X86_64_GOT64 = 27, // 64-bit GOT entry offset
|
|
R_X86_64_GOTPCREL64 = 28, // 64-bit PC relative offset to GOT entry
|
|
R_X86_64_GOTPC64 = 29, // 64-bit PC relative offset to GOT
|
|
R_X86_64_GOTPLT64 = 30, // Like GOT64, indicates that PLT entry needed
|
|
R_X86_64_PLTOFF64 = 31, // 64-bit GOT relative offset to PLT entry
|
|
|
|
R_X86_64_SIZE32 = 32,
|
|
R_X86_64_SIZE64 = 33,
|
|
|
|
R_X86_64_GOTPC32_TLSDESC = 34, // 32-bit PC relative to TLS descriptor in GOT
|
|
R_X86_64_TLSDESC_CALL = 35, // Relaxable call through TLS descriptor
|
|
R_X86_64_TLSDESC = 36, // 2 by 64-bit TLS descriptor
|
|
R_X86_64_IRELATIVE = 37, // Adjust indirectly by program base
|
|
R_X86_64_RELATIVE64 = 38, // 64-bit adjust by program base
|
|
R_X86_64_PC32_BND = 39, // PC relative 32 bit signed with BND prefix
|
|
R_X86_64_PLT32_BND = 40, // 32 bit PLT address with BND prefix
|
|
R_X86_64_GOTPCRELX = 41, // 32 bit signed PC relative offset to GOT
|
|
// without REX nor REX2 prefixes, relaxable.
|
|
R_X86_64_REX_GOTPCRELX = 42, // 32 bit signed PC relative offset to GOT
|
|
// with REX prefix, relaxable.
|
|
R_X86_64_CODE_4_GOTPCRELX = 43, // 32 bit signed PC relative offset to
|
|
// GOT if the instruction starts at 4
|
|
// bytes before the relocation offset,
|
|
// relaxable.
|
|
R_X86_64_CODE_4_GOTTPOFF = 44, // 32 bit signed PC relative offset to
|
|
// GOT entry for IE symbol if the
|
|
// instruction starts at 4 bytes before
|
|
// the relocation offset.
|
|
R_X86_64_CODE_4_GOTPC32_TLSDESC = 45, // 32-bit PC relative to TLS
|
|
// descriptor in GOT if the
|
|
// instruction starts at 4 bytes
|
|
// before the relocation offset.
|
|
R_X86_64_CODE_5_GOTPCRELX = 46, // 32 bit signed PC relative offset to
|
|
// GOT if the instruction starts at 5
|
|
// bytes before the relocation offset,
|
|
// relaxable.
|
|
R_X86_64_CODE_5_GOTTPOFF = 47, // 32 bit signed PC relative offset to
|
|
// GOT entry for IE symbol if the
|
|
// instruction starts at 5 bytes before
|
|
// the relocation offset.
|
|
R_X86_64_CODE_5_GOTPC32_TLSDESC = 48, // 32-bit PC relative to TLS
|
|
// descriptor in GOT if the
|
|
// instruction starts at 5 bytes
|
|
// before the relocation offset.
|
|
R_X86_64_CODE_6_GOTPCRELX = 49, // 32 bit signed PC relative offset to
|
|
// GOT if the instruction starts at 6
|
|
// bytes before the relocation offset,
|
|
// relaxable.
|
|
R_X86_64_CODE_6_GOTTPOFF = 50, // 32 bit signed PC relative offset to
|
|
// GOT entry for IE symbol if the
|
|
// instruction starts at 6 bytes before
|
|
// the relocation offset.
|
|
R_X86_64_CODE_6_GOTPC32_TLSDESC = 51, // 32-bit PC relative to TLS
|
|
// descriptor in GOT if the
|
|
// instruction starts at 6 bytes
|
|
// before the relocation offset.
|
|
// GNU vtable garbage collection extensions.
|
|
R_X86_64_GNU_VTINHERIT = 250,
|
|
R_X86_64_GNU_VTENTRY = 251
|
|
};
|
|
|
|
// The bit values that can appear in the GNU_PROPERTY_X86_FEATURE_1_AND
|
|
// program property.
|
|
|
|
const uint64_t GNU_PROPERTY_X86_FEATURE_1_IBT = 1ULL << 0;
|
|
const uint64_t GNU_PROPERTY_X86_FEATURE_1_SHSTK = 1ULL << 1;
|
|
|
|
} // End namespace elfcpp.
|
|
|
|
#endif // !defined(ELFCPP_X86_64_H)
|