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* config.bfd: Remove duplicated target vector for i386-*-darwin. Appends new arch instead of overriding. Use mach_o_x86_64_vec for x86_64-*-darwin. * configure.in: Add mach_o_x86_64_vec. * configure: Regenerate. * targets.c: Declare mach_o_x86_64_vec, add it to _bfd_target_vector. * Makefile.am (BFD64_BACKENDS): Add mach-o-x86-64.lo (BFD64_BACKENDS_CFILES): Add mach-o-x86-64.c * Makefile.in: Regenerate. * mach-o-x86-64.c: New file.gdb_7_1-branch
Tristan Gingold
16 years ago
8 changed files with 309 additions and 5 deletions
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/* Intel x86-64 Mach-O support for BFD.
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Copyright 2010 |
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Free Software Foundation, Inc. |
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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 3 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 |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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MA 02110-1301, USA. */ |
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#include "sysdep.h" |
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#include "mach-o.h" |
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#include "bfd.h" |
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#include "libbfd.h" |
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#include "libiberty.h" |
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#define bfd_mach_o_object_p bfd_mach_o_x86_64_object_p |
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#define bfd_mach_o_core_p bfd_mach_o_x86_64_core_p |
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#define bfd_mach_o_mkobject bfd_mach_o_x86_64_mkobject |
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static const bfd_target * |
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bfd_mach_o_x86_64_object_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_X86_64); |
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} |
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static const bfd_target * |
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bfd_mach_o_x86_64_core_p (bfd *abfd) |
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{ |
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return bfd_mach_o_header_p (abfd, |
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BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64); |
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} |
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static bfd_boolean |
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bfd_mach_o_x86_64_mkobject (bfd *abfd) |
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{ |
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bfd_mach_o_data_struct *mdata; |
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if (!bfd_mach_o_mkobject_init (abfd)) |
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return FALSE; |
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mdata = bfd_mach_o_get_data (abfd); |
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mdata->header.magic = BFD_MACH_O_MH_MAGIC; |
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mdata->header.cputype = BFD_MACH_O_CPU_TYPE_X86_64; |
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mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL; |
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mdata->header.byteorder = BFD_ENDIAN_LITTLE; |
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mdata->header.version = 1; |
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return TRUE; |
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} |
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ |
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#define MINUS_ONE (~ (bfd_vma) 0) |
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static reloc_howto_type x86_64_howto_table[]= |
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{ |
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/* 0 */ |
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HOWTO(BFD_RELOC_64, 0, 4, 64, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "64", |
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FALSE, MINUS_ONE, MINUS_ONE, FALSE), |
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HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_1, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32_1", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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/* 4 */ |
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HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_2, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32_2", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_PCREL32_4, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "DISP32_4", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH32, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "BRANCH32", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_GOT_LOAD, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "GOT_LOAD", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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/* 8 */ |
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HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SUBTRACTOR32", |
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FALSE, 0xffffffff, 0xffffffff, FALSE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64, 0, 4, 64, FALSE, 0, |
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complain_overflow_bitfield, |
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NULL, "SUBTRACTOR64", |
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FALSE, MINUS_ONE, MINUS_ONE, FALSE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_GOT, 0, 2, 32, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "GOT", |
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FALSE, 0xffffffff, 0xffffffff, TRUE), |
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HOWTO(BFD_RELOC_MACH_O_X86_64_BRANCH8, 0, 0, 8, TRUE, 0, |
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complain_overflow_bitfield, |
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NULL, "BRANCH8", |
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FALSE, 0xff, 0xff, TRUE), |
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}; |
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static bfd_boolean |
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bfd_mach_o_x86_64_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc) |
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{ |
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/* On x86-64, scattered relocs are not used. */ |
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if (reloc->r_scattered) |
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return FALSE; |
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switch (reloc->r_type) |
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{ |
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case BFD_MACH_O_X86_64_RELOC_UNSIGNED: |
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if (reloc->r_pcrel) |
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return FALSE; |
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switch (reloc->r_length) |
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{ |
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case 2: |
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res->howto = &x86_64_howto_table[1]; |
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return TRUE; |
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case 3: |
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res->howto = &x86_64_howto_table[0]; |
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return TRUE; |
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default: |
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return FALSE; |
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} |
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case BFD_MACH_O_X86_64_RELOC_SIGNED: |
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if (reloc->r_length == 2 && reloc->r_pcrel) |
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{ |
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res->howto = &x86_64_howto_table[2]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_BRANCH: |
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if (!reloc->r_pcrel) |
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return FALSE; |
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switch (reloc->r_length) |
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{ |
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case 2: |
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res->howto = &x86_64_howto_table[6]; |
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return TRUE; |
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default: |
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return FALSE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_GOT_LOAD: |
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if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern) |
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{ |
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res->howto = &x86_64_howto_table[7]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_GOT: |
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if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern) |
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{ |
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res->howto = &x86_64_howto_table[10]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_SUBTRACTOR: |
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if (reloc->r_pcrel) |
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return FALSE; |
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switch (reloc->r_length) |
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{ |
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case 2: |
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res->howto = &x86_64_howto_table[8]; |
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return TRUE; |
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case 3: |
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res->howto = &x86_64_howto_table[9]; |
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return TRUE; |
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default: |
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return FALSE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_SIGNED_1: |
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if (reloc->r_length == 2 && reloc->r_pcrel) |
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{ |
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res->howto = &x86_64_howto_table[3]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_SIGNED_2: |
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if (reloc->r_length == 2 && reloc->r_pcrel) |
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{ |
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res->howto = &x86_64_howto_table[4]; |
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return TRUE; |
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} |
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break; |
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case BFD_MACH_O_X86_64_RELOC_SIGNED_4: |
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if (reloc->r_length == 2 && reloc->r_pcrel) |
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{ |
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res->howto = &x86_64_howto_table[5]; |
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return TRUE; |
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} |
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break; |
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default: |
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return FALSE; |
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} |
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return FALSE; |
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} |
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static bfd_boolean |
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bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo) |
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{ |
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rinfo->r_address = rel->address; |
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switch (rel->howto->type) |
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{ |
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case BFD_RELOC_64: |
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rinfo->r_scattered = 0; |
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rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED; |
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rinfo->r_pcrel = 0; |
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rinfo->r_length = rel->howto->size; /* Correct in practice. */ |
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if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM) |
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{ |
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rinfo->r_extern = 0; |
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rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index; |
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} |
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else |
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{ |
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rinfo->r_extern = 1; |
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rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i; |
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} |
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break; |
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default: |
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return FALSE; |
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} |
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return TRUE; |
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} |
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static reloc_howto_type * |
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bfd_mach_o_x86_64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
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bfd_reloc_code_real_type code) |
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{ |
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unsigned int i; |
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for (i = 0; |
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i < sizeof (x86_64_howto_table) / sizeof (*x86_64_howto_table); |
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i++) |
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if (code == x86_64_howto_table[i].type) |
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return &x86_64_howto_table[i]; |
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return NULL; |
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} |
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static reloc_howto_type * |
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bfd_mach_o_x86_64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
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const char *name ATTRIBUTE_UNUSED) |
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{ |
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return NULL; |
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} |
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#define bfd_mach_o_swap_reloc_in bfd_mach_o_x86_64_swap_reloc_in |
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#define bfd_mach_o_swap_reloc_out bfd_mach_o_x86_64_swap_reloc_out |
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#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_x86_64_bfd_reloc_type_lookup |
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#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_x86_64_bfd_reloc_name_lookup |
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#define bfd_mach_o_print_thread NULL |
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#define TARGET_NAME mach_o_x86_64_vec |
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#define TARGET_STRING "mach-o-x86-64" |
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#define TARGET_ARCHITECTURE bfd_arch_i386 |
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#define TARGET_BIG_ENDIAN 0 |
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#define TARGET_ARCHIVE 0 |
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#include "mach-o-target.c" |
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