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24b2de7b77
binutils-gdb/bfd/mach-o-x86-64.c
Alan Modra 0a1b45a20e Use bool in bfd 
* sysdep.h: POISON_BFD_BOOLEAN: Define.
	* aix5ppc-core.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h,
	* aoutx.h, * arc-got.h, * archive.c, * archive64.c, * archures.c,
	* bfd-in.h, * bfd.c, * bfdwin.c, * binary.c, * cache.c,
	* coff-alpha.c, * coff-arm.c, * coff-arm.h, * coff-bfd.c,
	* coff-bfd.h, * coff-go32.c, * coff-i386.c, * coff-ia64.c,
	* coff-mcore.c, * coff-mips.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic30.c, * coff-tic4x.c, * coff-tic54x.c,
	* coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c,
	* coffcode.h, * coffgen.c, * cofflink.c, * compress.c,
	* corefile.c, * cpu-aarch64.c, * cpu-aarch64.h, * cpu-alpha.c,
	* cpu-arc.c, * cpu-arm.c, * cpu-arm.h, * cpu-avr.c, * cpu-bfin.c,
	* cpu-bpf.c, * cpu-cr16.c, * cpu-cris.c, * cpu-crx.c,
	* cpu-csky.c, * cpu-d10v.c, * cpu-d30v.c, * cpu-dlx.c,
	* cpu-epiphany.c, * cpu-fr30.c, * cpu-frv.c, * cpu-ft32.c,
	* cpu-h8300.c, * cpu-hppa.c, * cpu-i386.c, * cpu-ia64.c,
	* cpu-iamcu.c, * cpu-ip2k.c, * cpu-iq2000.c, * cpu-k1om.c,
	* cpu-l1om.c, * cpu-lm32.c, * cpu-m10200.c, * cpu-m10300.c,
	* cpu-m32c.c, * cpu-m32r.c, * cpu-m68hc11.c, * cpu-m68hc12.c,
	* cpu-m68k.c, * cpu-m9s12x.c, * cpu-m9s12xg.c, * cpu-mcore.c,
	* cpu-mep.c, * cpu-metag.c, * cpu-microblaze.c, * cpu-mips.c,
	* cpu-mmix.c, * cpu-moxie.c, * cpu-msp430.c, * cpu-mt.c,
	* cpu-nds32.c, * cpu-nfp.c, * cpu-nios2.c, * cpu-ns32k.c,
	* cpu-or1k.c, * cpu-pdp11.c, * cpu-pj.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-riscv.c, * cpu-rl78.c, * cpu-rs6000.c,
	* cpu-rx.c, * cpu-s12z.c, * cpu-s390.c, * cpu-score.c,
	* cpu-sh.c, * cpu-sparc.c, * cpu-spu.c, * cpu-tic30.c,
	* cpu-tic4x.c, * cpu-tic54x.c, * cpu-tic6x.c, * cpu-tilegx.c,
	* cpu-tilepro.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-vax.c,
	* cpu-visium.c, * cpu-wasm32.c, * cpu-xc16x.c, * cpu-xgate.c,
	* cpu-xstormy16.c, * cpu-xtensa.c, * cpu-z80.c, * cpu-z8k.c,
	* dwarf1.c, * dwarf2.c, * ecoff-bfd.h, * ecoff.c, * ecofflink.c,
	* elf-attrs.c, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h,
	* elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-nacl.c,
	* elf-nacl.h, * elf-properties.c, * elf-s390-common.c,
	* elf-s390.h, * elf-strtab.c, * elf-vxworks.c, * elf-vxworks.h,
	* elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c,
	* elf32-arm.h, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c,
	* elf32-bfin.h, * elf32-cr16.c, * elf32-cr16.h, * elf32-cris.c,
	* elf32-crx.c, * elf32-csky.c, * elf32-csky.h, * elf32-d10v.c,
	* elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-gen.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-hppa.h, * elf32-i386.c,
	* elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c,
	* elf32-m68k.h, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c,
	* elf32-metag.h, * elf32-microblaze.c, * elf32-mips.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nios2.c, * elf32-nios2.h, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s12z.c, * elf32-s390.c, * elf32-score.c,
	* elf32-score.h, * elf32-score7.c, * elf32-sh-relocs.h,
	* elf32-sh.c, * elf32-sparc.c, * elf32-spu.c, * elf32-spu.h,
	* elf32-tic6x.c, * elf32-tic6x.h, * elf32-tilegx.c,
	* elf32-tilepro.c, * elf32-v850.c, * elf32-v850.h,
	* elf32-vax.c, * elf32-visium.c, * elf32-wasm32.c,
	* elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf32-z80.c, * elf64-alpha.c, * elf64-bpf.c,
	* elf64-gen.c, * elf64-hppa.c, * elf64-ia64-vms.c,
	* elf64-mips.c, * elf64-mmix.c, * elf64-nfp.c, * elf64-ppc.c,
	* elf64-ppc.h, * elf64-s390.c, * elf64-sparc.c,
	* elf64-tilegx.c, * elf64-x86-64.c, * elfcode.h,
	* elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c,
	* elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c,
	* elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h,
	* elfxx-mips.c, * elfxx-mips.h, * elfxx-riscv.c, * elfxx-riscv.h,
	* elfxx-sparc.c, * elfxx-sparc.h, * elfxx-target.h,
	* elfxx-tilegx.c, * elfxx-tilegx.h, * elfxx-x86.c, * elfxx-x86.h,
	* format.c, * genlink.h, * hash.c, * i386aout.c, * i386lynx.c,
	* i386msdos.c, * ihex.c, * libaout.h, * libbfd-in.h,
	* libbfd.c, * libcoff-in.h, * libecoff.h, * libpei.h,
	* libxcoff.h, * linker.c, * mach-o-aarch64.c, * mach-o-arm.c,
	* mach-o-i386.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h,
	* merge.c, * mmo.c, * netbsd.h, * opncls.c, * pc532-mach.c,
	* pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-sh.c,
	* pe-x86_64.c, * peXXigen.c, * pef.c, * pei-arm.c, * pei-i386.c,
	* pei-ia64.c, * pei-mcore.c, * pei-sh.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * plugin.h, * ppcboot.c, * reloc.c,
	* reloc16.c, * rs6000-core.c, * section.c, * simple.c, * som.c,
	* som.h, * srec.c, * stabs.c, * syms.c, * targets.c, * tekhex.c,
	* verilog.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * vms.h,
	* wasm-module.c, * xcofflink.c, * xcofflink.h, * xsym.c,
	* xsym.h: Replace bfd_boolean with bool, FALSE with false, and
	TRUE with true throughout.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* libcoff.h: Regenerate.
2021-03-31 10:49:23 +10:30

390 lines
11 KiB
C
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/* Intel x86-64 Mach-O support for BFD.
Copyright (C) 2010-2021 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 "libiberty.h"
#include "mach-o.h"
#include "mach-o/x86-64.h"
#define bfd_mach_o_object_p bfd_mach_o_x86_64_object_p
#define bfd_mach_o_core_p bfd_mach_o_x86_64_core_p
#define bfd_mach_o_mkobject bfd_mach_o_x86_64_mkobject
static bfd_cleanup
bfd_mach_o_x86_64_object_p (bfd *abfd)
{
return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_X86_64);
}
static bfd_cleanup
bfd_mach_o_x86_64_core_p (bfd *abfd)
{
return bfd_mach_o_header_p (abfd, 0,
BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64);
}
static bool
bfd_mach_o_x86_64_mkobject (bfd *abfd)
{
bfd_mach_o_data_struct *mdata;
if (!bfd_mach_o_mkobject_init (abfd))
return false;
mdata = bfd_mach_o_get_data (abfd);
mdata->header.magic = BFD_MACH_O_MH_MAGIC_64;
mdata->header.cputype = BFD_MACH_O_CPU_TYPE_X86_64;
mdata->header.cpusubtype =
BFD_MACH_O_CPU_SUBTYPE_X86_ALL | BFD_MACH_O_CPU_SUBTYPE_LIB64;
mdata->header.byteorder = BFD_ENDIAN_LITTLE;
mdata->header.version = 2;
return true;
}
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
#define MINUS_ONE (~ (bfd_vma) 0)
static reloc_howto_type x86_64_howto_table[]=
{
/* 0 */
HOWTO(BFD_RELOC_64, 0, 4, 64, false, 0,
complain_overflow_bitfield,
NULL, "64",
false, MINUS_ONE, MINUS_ONE, false),
HOWTO(BFD_RELOC_32, 0, 2, 32, false, 0,
complain_overflow_bitfield,
NULL, "32",
false, 0xffffffff, 0xffffffff, false),
HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "DISP32",
false, 0xffffffff, 0xffffffff, true),
HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_1, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "DISP32_1",
false, 0xffffffff, 0xffffffff, true),
/* 4 */
HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_2, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "DISP32_2",
false, 0xffffffff, 0xffffffff, true),
HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_4, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "DISP32_4",
false, 0xffffffff, 0xffffffff, true),
HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH32, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "BRANCH32",
false, 0xffffffff, 0xffffffff, true),
HOWTO(BFD_RELOC_MACH_O_X86_64_GOT_LOAD, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "GOT_LOAD",
false, 0xffffffff, 0xffffffff, true),
/* 8 */
HOWTO(BFD_RELOC_MACH_O_SUBTRACTOR32, 0, 2, 32, false, 0,
complain_overflow_bitfield,
NULL, "SUBTRACTOR32",
false, 0xffffffff, 0xffffffff, false),
HOWTO(BFD_RELOC_MACH_O_SUBTRACTOR64, 0, 4, 64, false, 0,
complain_overflow_bitfield,
NULL, "SUBTRACTOR64",
false, MINUS_ONE, MINUS_ONE, false),
HOWTO(BFD_RELOC_MACH_O_X86_64_GOT, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "GOT",
false, 0xffffffff, 0xffffffff, true),
HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH8, 0, 0, 8, true, 0,
complain_overflow_bitfield,
NULL, "BRANCH8",
false, 0xff, 0xff, true),
/* 12 */
HOWTO(BFD_RELOC_MACH_O_X86_64_TLV, 0, 2, 32, true, 0,
complain_overflow_bitfield,
NULL, "TLV",
false, 0xffffffff, 0xffffffff, true),
};
static bool
bfd_mach_o_x86_64_canonicalize_one_reloc (bfd * abfd,
struct mach_o_reloc_info_external * raw,
arelent * res,
asymbol ** syms,
arelent * res_base ATTRIBUTE_UNUSED)
{
bfd_mach_o_reloc_info reloc;
if (!bfd_mach_o_pre_canonicalize_one_reloc (abfd, raw, &reloc, res, syms))
return false;
/* On x86-64, scattered relocs are not used. */
if (reloc.r_scattered)
return false;
switch (reloc.r_type)
{
case BFD_MACH_O_X86_64_RELOC_UNSIGNED:
if (reloc.r_pcrel)
return false;
switch (reloc.r_length)
{
case 2:
res->howto = &x86_64_howto_table[1];
return true;
case 3:
res->howto = &x86_64_howto_table[0];
return true;
default:
return false;
}
case BFD_MACH_O_X86_64_RELOC_SIGNED:
if (reloc.r_length == 2 && reloc.r_pcrel)
{
res->howto = &x86_64_howto_table[2];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_BRANCH:
if (!reloc.r_pcrel)
return false;
switch (reloc.r_length)
{
case 2:
res->howto = &x86_64_howto_table[6];
return true;
default:
return false;
}
break;
case BFD_MACH_O_X86_64_RELOC_GOT_LOAD:
if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
{
res->howto = &x86_64_howto_table[7];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_GOT:
if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
{
res->howto = &x86_64_howto_table[10];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_SUBTRACTOR:
if (reloc.r_pcrel)
return false;
switch (reloc.r_length)
{
case 2:
res->howto = &x86_64_howto_table[8];
return true;
case 3:
res->howto = &x86_64_howto_table[9];
return true;
default:
return false;
}
break;
case BFD_MACH_O_X86_64_RELOC_SIGNED_1:
if (reloc.r_length == 2 && reloc.r_pcrel)
{
res->howto = &x86_64_howto_table[3];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_SIGNED_2:
if (reloc.r_length == 2 && reloc.r_pcrel)
{
res->howto = &x86_64_howto_table[4];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_SIGNED_4:
if (reloc.r_length == 2 && reloc.r_pcrel)
{
res->howto = &x86_64_howto_table[5];
return true;
}
break;
case BFD_MACH_O_X86_64_RELOC_TLV:
if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
{
res->howto = &x86_64_howto_table[12];
return true;
}
break;
default:
return false;
}
return false;
}
static bool
bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
{
rinfo->r_address = rel->address;
rinfo->r_scattered = 0;
switch (rel->howto->type)
{
case BFD_RELOC_32:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED;
rinfo->r_pcrel = 0;
rinfo->r_length = 2;
break;
case BFD_RELOC_64:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED;
rinfo->r_pcrel = 0;
rinfo->r_length = 3;
break;
case BFD_RELOC_32_PCREL:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_PCREL32_1:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_1;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_PCREL32_2:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_2;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_PCREL32_4:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_4;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_BRANCH32:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_BRANCH;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_SUBTRACTOR32:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
rinfo->r_pcrel = 0;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_SUBTRACTOR64:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
rinfo->r_pcrel = 0;
rinfo->r_length = 3;
break;
case BFD_RELOC_MACH_O_X86_64_GOT:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_GOT;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_GOT_LOAD:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_GOT_LOAD;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_TLV:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_TLV;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
default:
return false;
}
if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
{
rinfo->r_extern = 0;
rinfo->r_value =
(*rel->sym_ptr_ptr)->section->output_section->target_index;
}
else
{
rinfo->r_extern = 1;
rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
}
return true;
}
static reloc_howto_type *
bfd_mach_o_x86_64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0;
i < sizeof (x86_64_howto_table) / sizeof (*x86_64_howto_table);
i++)
if (code == x86_64_howto_table[i].type)
return &x86_64_howto_table[i];
return NULL;
}
static reloc_howto_type *
bfd_mach_o_x86_64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
const char *name ATTRIBUTE_UNUSED)
{
return NULL;
}
static bool
bfd_mach_o_section_type_valid_for_x86_64 (unsigned long val)
{
if (val == BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
|| val == BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
|| val == BFD_MACH_O_S_SYMBOL_STUBS)
return false;
return true;
}
/* We want to bump the alignment of some sections. */
static const mach_o_section_name_xlat text_section_names_xlat[] =
{
{ ".eh_frame", "__eh_frame",
SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
BFD_MACH_O_S_ATTR_LIVE_SUPPORT
| BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
| BFD_MACH_O_S_ATTR_NO_TOC, 3},
{ NULL, NULL, 0, 0, 0, 0}
};
const mach_o_segment_name_xlat mach_o_x86_64_segsec_names_xlat[] =
{
{ "__TEXT", text_section_names_xlat },
{ NULL, NULL }
};
#define bfd_mach_o_canonicalize_one_reloc bfd_mach_o_x86_64_canonicalize_one_reloc
#define bfd_mach_o_swap_reloc_out bfd_mach_o_x86_64_swap_reloc_out
#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_x86_64_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_x86_64_bfd_reloc_name_lookup
#define bfd_mach_o_print_thread NULL
#define bfd_mach_o_tgt_seg_table mach_o_x86_64_segsec_names_xlat
#define bfd_mach_o_section_type_valid_for_tgt bfd_mach_o_section_type_valid_for_x86_64
#define TARGET_NAME x86_64_mach_o_vec
#define TARGET_STRING "mach-o-x86-64"
#define TARGET_ARCHITECTURE bfd_arch_i386
#define TARGET_PAGESIZE 4096
#define TARGET_BIG_ENDIAN 0
#define TARGET_ARCHIVE 0
#define TARGET_PRIORITY 0
#include "mach-o-target.c"
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