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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [mach-o-i386.c] - Rev 163
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/* Intel i386 Mach-O support for BFD. Copyright 2009 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" #include "mach-o/reloc.h" #define bfd_mach_o_object_p bfd_mach_o_i386_object_p #define bfd_mach_o_core_p bfd_mach_o_i386_core_p #define bfd_mach_o_mkobject bfd_mach_o_i386_mkobject static const bfd_target * bfd_mach_o_i386_object_p (bfd *abfd) { return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_I386); } static const bfd_target * bfd_mach_o_i386_core_p (bfd *abfd) { return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_I386); } static bfd_boolean bfd_mach_o_i386_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_I386; mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL; mdata->header.byteorder = BFD_ENDIAN_LITTLE; mdata->header.version = 1; return TRUE; } static reloc_howto_type i386_howto_table[]= { HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL, "32", FALSE, 0xffffffff, 0xffffffff, FALSE), HOWTO(BFD_RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, NULL, "16", FALSE, 0xffff, 0xffff, FALSE), HOWTO(BFD_RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, NULL, "8", FALSE, 0xff, 0xff, FALSE), HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, NULL, "DISP32", FALSE, 0xffffffff, 0xffffffff, TRUE), HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0, complain_overflow_bitfield, NULL, "DISP16", FALSE, 0xffff, 0xffff, TRUE), HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL, "SECTDIFF_32", FALSE, 0xffffffff, 0xffffffff, FALSE), HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, NULL, "PAIR_32", FALSE, 0xffffffff, 0xffffffff, FALSE), }; static bfd_boolean bfd_mach_o_i386_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc) { if (reloc->r_scattered) { switch (reloc->r_type) { case BFD_MACH_O_GENERIC_RELOC_PAIR: if (reloc->r_length != 2) return FALSE; res->howto = &i386_howto_table[6]; res->address = res[-1].address; return TRUE; case BFD_MACH_O_GENERIC_RELOC_SECTDIFF: case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF: if (reloc->r_length != 2) return FALSE; res->howto = &i386_howto_table[5]; return TRUE; default: return FALSE; } } else { switch (reloc->r_type) { case BFD_MACH_O_GENERIC_RELOC_VANILLA: switch ((reloc->r_length << 1) | reloc->r_pcrel) { case 0: /* len = 0, pcrel = 0 */ res->howto = &i386_howto_table[2]; return TRUE; case 2: /* len = 1, pcrel = 0 */ res->howto = &i386_howto_table[1]; return TRUE; case 3: /* len = 1, pcrel = 1 */ res->howto = &i386_howto_table[4]; return TRUE; case 4: /* len = 2, pcrel = 0 */ res->howto = &i386_howto_table[0]; return TRUE; case 5: /* len = 2, pcrel = 1 */ res->howto = &i386_howto_table[3]; return TRUE; default: return FALSE; } break; default: return FALSE; } } } static bfd_boolean bfd_mach_o_i386_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo) { rinfo->r_address = rel->address; switch (rel->howto->type) { case BFD_RELOC_32: case BFD_RELOC_32_PCREL: case BFD_RELOC_16: case BFD_RELOC_16_PCREL: case BFD_RELOC_8: rinfo->r_scattered = 0; rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_VANILLA; rinfo->r_pcrel = rel->howto->pc_relative; 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; case BFD_RELOC_MACH_O_SECTDIFF: rinfo->r_scattered = 1; rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF; rinfo->r_pcrel = 0; rinfo->r_length = 2; rinfo->r_extern = 0; rinfo->r_value = (*rel->sym_ptr_ptr)->value + (*rel->sym_ptr_ptr)->section->vma; break; case BFD_RELOC_MACH_O_PAIR: rinfo->r_address = 0; rinfo->r_scattered = 1; rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR; rinfo->r_pcrel = 0; rinfo->r_length = 2; rinfo->r_extern = 0; rinfo->r_value = (*rel->sym_ptr_ptr)->value + (*rel->sym_ptr_ptr)->section->vma; break; default: return FALSE; } return TRUE; } static reloc_howto_type * bfd_mach_o_i386_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) { unsigned int i; for (i = 0; i < sizeof (i386_howto_table) / sizeof (*i386_howto_table); i++) if (code == i386_howto_table[i].type) return &i386_howto_table[i]; return NULL; } static reloc_howto_type * bfd_mach_o_i386_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *name ATTRIBUTE_UNUSED) { return NULL; } static bfd_boolean bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread, void *vfile, char *buf) { FILE *file = (FILE *)vfile; switch (thread->flavour) { case BFD_MACH_O_x86_THREAD_STATE: if (thread->size < (8 + 16 * 4)) return FALSE; fprintf (file, " x86_THREAD_STATE:\n"); fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 0), (unsigned long)bfd_get_32 (abfd, buf + 4)); fprintf (file, " eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 8), (unsigned long)bfd_get_32 (abfd, buf + 12), (unsigned long)bfd_get_32 (abfd, buf + 16), (unsigned long)bfd_get_32 (abfd, buf + 20)); fprintf (file, " edi: %08lx esi: %08lx ebp: %08lx esp: %08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 24), (unsigned long)bfd_get_32 (abfd, buf + 28), (unsigned long)bfd_get_32 (abfd, buf + 32), (unsigned long)bfd_get_32 (abfd, buf + 36)); fprintf (file, " ss: %08lx flg: %08lx eip: %08lx cs: %08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 40), (unsigned long)bfd_get_32 (abfd, buf + 44), (unsigned long)bfd_get_32 (abfd, buf + 48), (unsigned long)bfd_get_32 (abfd, buf + 52)); fprintf (file, " ds: %08lx es: %08lx fs: %08lx gs: %08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 56), (unsigned long)bfd_get_32 (abfd, buf + 60), (unsigned long)bfd_get_32 (abfd, buf + 64), (unsigned long)bfd_get_32 (abfd, buf + 68)); return TRUE; case BFD_MACH_O_x86_FLOAT_STATE: if (thread->size < 8) return FALSE; fprintf (file, " x86_FLOAT_STATE:\n"); fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 0), (unsigned long)bfd_get_32 (abfd, buf + 4)); return TRUE; case BFD_MACH_O_x86_EXCEPTION_STATE: if (thread->size < 8 + 3 * 4) return FALSE; fprintf (file, " x86_EXCEPTION_STATE:\n"); fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 0), (unsigned long)bfd_get_32 (abfd, buf + 4)); fprintf (file, " trapno: %08lx err: %08lx faultaddr: %08lx\n", (unsigned long)bfd_get_32 (abfd, buf + 8), (unsigned long)bfd_get_32 (abfd, buf + 12), (unsigned long)bfd_get_32 (abfd, buf + 16)); return TRUE; default: break; } return FALSE; } #define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in #define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out #define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread #define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup #define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup #define TARGET_NAME mach_o_i386_vec #define TARGET_STRING "mach-o-i386" #define TARGET_ARCHITECTURE bfd_arch_i386 #define TARGET_BIG_ENDIAN 0 #define TARGET_ARCHIVE 0 #include "mach-o-target.c"
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