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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [mach-o-x86-64.c] - Rev 47
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/* Intel x86-64 Mach-O support for BFD. Copyright 2010 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 "mach-o.h" #include "bfd.h" #include "libbfd.h" #include "libiberty.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 const bfd_target * bfd_mach_o_x86_64_object_p (bfd *abfd) { return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_X86_64); } static const bfd_target * bfd_mach_o_x86_64_core_p (bfd *abfd) { return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64); } static bfd_boolean 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; mdata->header.cputype = BFD_MACH_O_CPU_TYPE_X86_64; mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL; mdata->header.byteorder = BFD_ENDIAN_LITTLE; mdata->header.version = 1; 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_X86_64_SUBTRACTOR32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL, "SUBTRACTOR32", FALSE, 0xffffffff, 0xffffffff, FALSE), HOWTO(BFD_RELOC_MACH_O_X86_64_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), }; static bfd_boolean bfd_mach_o_x86_64_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc) { /* 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; default: return FALSE; } return FALSE; } static bfd_boolean bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo) { rinfo->r_address = rel->address; switch (rel->howto->type) { case BFD_RELOC_64: rinfo->r_scattered = 0; rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED; rinfo->r_pcrel = 0; rinfo->r_length = rel->howto->size; /* Correct in practice. */ if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM) { rinfo->r_extern = 0; rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index; } else { rinfo->r_extern = 1; rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i; } break; default: return FALSE; } 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; } #define bfd_mach_o_swap_reloc_in bfd_mach_o_x86_64_swap_reloc_in #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 TARGET_NAME mach_o_x86_64_vec #define TARGET_STRING "mach-o-x86-64" #define TARGET_ARCHITECTURE bfd_arch_i386 #define TARGET_BIG_ENDIAN 0 #define TARGET_ARCHIVE 0 #include "mach-o-target.c"
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