diff options
Diffstat (limited to 'binutils-2.17/bfd/mach-o.c')
| -rw-r--r-- | binutils-2.17/bfd/mach-o.c | 2031 |
1 files changed, 0 insertions, 2031 deletions
diff --git a/binutils-2.17/bfd/mach-o.c b/binutils-2.17/bfd/mach-o.c deleted file mode 100644 index 03a71449..00000000 --- a/binutils-2.17/bfd/mach-o.c +++ /dev/null @@ -1,2031 +0,0 @@ -/* Mach-O support for BFD. - Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005 - 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 2 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 "mach-o.h" -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "libiberty.h" -#include <ctype.h> - -#ifndef BFD_IO_FUNCS -#define BFD_IO_FUNCS 0 -#endif - -#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive -#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr -#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap -#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table -#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table -#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname -#define bfd_mach_o_write_armap _bfd_noarchive_write_armap -#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index -#define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt -#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp -#define bfd_mach_o_close_and_cleanup _bfd_generic_close_and_cleanup -#define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -#define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook -#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window -#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name -#define bfd_mach_o_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) -#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name -#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno -#define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line -#define bfd_mach_o_find_inliner_info _bfd_nosymbols_find_inliner_info -#define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol -#define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols -#define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol -#define bfd_mach_o_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound -#define bfd_mach_o_canonicalize_reloc _bfd_norelocs_canonicalize_reloc -#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup -#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents -#define bfd_mach_o_bfd_relax_section bfd_generic_relax_section -#define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define bfd_mach_o_bfd_link_hash_table_free _bfd_generic_link_hash_table_free -#define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols -#define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms -#define bfd_mach_o_bfd_final_link _bfd_generic_final_link -#define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section -#define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach -#define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data -#define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags -#define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data -#define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents -#define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents -#define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections -#define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections -#define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section -#define bfd_mach_o_bfd_discard_group bfd_generic_discard_group -#define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked -#define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data -#define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p - - -/* The flags field of a section structure is separated into two parts a section - type and section attributes. The section types are mutually exclusive (it - can only have one type) but the section attributes are not (it may have more - than one attribute). */ - -#define SECTION_TYPE 0x000000ff /* 256 section types. */ -#define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */ - -/* Constants for the section attributes part of the flags field of a section - structure. */ - -#define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */ -#define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */ -#define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */ -#define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */ -#define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */ -#define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */ - -#define N_STAB 0xe0 -#define N_TYPE 0x1e -#define N_EXT 0x01 -#define N_UNDF 0x0 -#define N_ABS 0x2 -#define N_SECT 0xe -#define N_INDR 0xa - -bfd_boolean -bfd_mach_o_valid (bfd *abfd) -{ - if (abfd == NULL || abfd->xvec == NULL) - return 0; - - if (! ((abfd->xvec == &mach_o_be_vec) - || (abfd->xvec == &mach_o_le_vec) - || (abfd->xvec == &mach_o_fat_vec))) - return 0; - - if (abfd->tdata.mach_o_data == NULL) - return 0; - return 1; -} - -/* Copy any private info we understand from the input symbol - to the output symbol. */ - -static bfd_boolean -bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED, - asymbol *isymbol ATTRIBUTE_UNUSED, - bfd *obfd ATTRIBUTE_UNUSED, - asymbol *osymbol ATTRIBUTE_UNUSED) -{ - return TRUE; -} - -/* Copy any private info we understand from the input section - to the output section. */ - -static bfd_boolean -bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, - asection *isection ATTRIBUTE_UNUSED, - bfd *obfd ATTRIBUTE_UNUSED, - asection *osection ATTRIBUTE_UNUSED) -{ - return TRUE; -} - -/* Copy any private info we understand from the input bfd - to the output bfd. */ - -static bfd_boolean -bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - BFD_ASSERT (bfd_mach_o_valid (ibfd)); - BFD_ASSERT (bfd_mach_o_valid (obfd)); - - obfd->tdata.mach_o_data = ibfd->tdata.mach_o_data; - obfd->tdata.mach_o_data->ibfd = ibfd; - return TRUE; -} - -static long -bfd_mach_o_count_symbols (bfd *abfd) -{ - bfd_mach_o_data_struct *mdata = NULL; - long nsyms = 0; - unsigned long i; - - BFD_ASSERT (bfd_mach_o_valid (abfd)); - mdata = abfd->tdata.mach_o_data; - - for (i = 0; i < mdata->header.ncmds; i++) - if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) - { - bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; - nsyms += sym->nsyms; - } - - return nsyms; -} - -static long -bfd_mach_o_get_symtab_upper_bound (bfd *abfd) -{ - long nsyms = bfd_mach_o_count_symbols (abfd); - - if (nsyms < 0) - return nsyms; - - return ((nsyms + 1) * sizeof (asymbol *)); -} - -static long -bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation) -{ - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - long nsyms = bfd_mach_o_count_symbols (abfd); - asymbol **csym = alocation; - unsigned long i, j; - - if (nsyms < 0) - return nsyms; - - for (i = 0; i < mdata->header.ncmds; i++) - { - if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) - { - bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; - - if (bfd_mach_o_scan_read_symtab_symbols (abfd, &mdata->commands[i].command.symtab) != 0) - { - fprintf (stderr, "bfd_mach_o_canonicalize_symtab: unable to load symbols for section %lu\n", i); - return 0; - } - - BFD_ASSERT (sym->symbols != NULL); - - for (j = 0; j < sym->nsyms; j++) - { - BFD_ASSERT (csym < (alocation + nsyms)); - *csym++ = &sym->symbols[j]; - } - } - } - - *csym++ = NULL; - - return nsyms; -} - -static void -bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, - asymbol *symbol, - symbol_info *ret) -{ - bfd_symbol_info (symbol, ret); -} - -static void -bfd_mach_o_print_symbol (bfd *abfd, - PTR afile, - asymbol *symbol, - bfd_print_symbol_type how) -{ - FILE *file = (FILE *) afile; - - switch (how) - { - case bfd_print_symbol_name: - fprintf (file, "%s", symbol->name); - break; - default: - bfd_print_symbol_vandf (abfd, (PTR) file, symbol); - fprintf (file, " %-5s %s", symbol->section->name, symbol->name); - } -} - -static void -bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype, - bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED, - enum bfd_architecture *type, - unsigned long *subtype) -{ - *subtype = bfd_arch_unknown; - - switch (mtype) - { - case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; - case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; - case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break; - case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; - case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; - case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; - case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; - case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; - case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break; - case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; - case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; - case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break; - default: *type = bfd_arch_unknown; break; - } - - switch (*type) - { - case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break; - case bfd_arch_sparc: *subtype = bfd_mach_sparc; break; - default: - *subtype = bfd_arch_unknown; - } -} - -static int -bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header) -{ - unsigned char buf[28]; - - bfd_h_put_32 (abfd, header->magic, buf + 0); - bfd_h_put_32 (abfd, header->cputype, buf + 4); - bfd_h_put_32 (abfd, header->cpusubtype, buf + 8); - bfd_h_put_32 (abfd, header->filetype, buf + 12); - bfd_h_put_32 (abfd, header->ncmds, buf + 16); - bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20); - bfd_h_put_32 (abfd, header->flags, buf + 24); - - bfd_seek (abfd, 0, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 28, abfd) != 28) - return -1; - - return 0; -} - -static int -bfd_mach_o_scan_write_thread (bfd *abfd, - bfd_mach_o_load_command *command) -{ - bfd_mach_o_thread_command *cmd = &command->command.thread; - unsigned int i; - unsigned char buf[8]; - bfd_vma offset; - unsigned int nflavours; - - BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) - || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); - - offset = 8; - nflavours = 0; - for (i = 0; i < cmd->nflavours; i++) - { - BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); - BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8)); - - bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf); - bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4); - - bfd_seek (abfd, command->offset + offset, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) - return -1; - - offset += cmd->flavours[i].size + 8; - } - - return 0; -} - -static int -bfd_mach_o_scan_write_section (bfd *abfd, - bfd_mach_o_section *section, - bfd_vma offset) -{ - unsigned char buf[68]; - - memcpy (buf, section->sectname, 16); - memcpy (buf + 16, section->segname, 16); - bfd_h_put_32 (abfd, section->addr, buf + 32); - bfd_h_put_32 (abfd, section->size, buf + 36); - bfd_h_put_32 (abfd, section->offset, buf + 40); - bfd_h_put_32 (abfd, section->align, buf + 44); - bfd_h_put_32 (abfd, section->reloff, buf + 48); - bfd_h_put_32 (abfd, section->nreloc, buf + 52); - bfd_h_put_32 (abfd, section->flags, buf + 56); - /* bfd_h_put_32 (abfd, section->reserved1, buf + 60); */ - /* bfd_h_put_32 (abfd, section->reserved2, buf + 64); */ - - bfd_seek (abfd, offset, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 68, abfd) != 68) - return -1; - - return 0; -} - -static int -bfd_mach_o_scan_write_segment (bfd *abfd, bfd_mach_o_load_command *command) -{ - unsigned char buf[48]; - bfd_mach_o_segment_command *seg = &command->command.segment; - unsigned long i; - - BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); - - memcpy (buf, seg->segname, 16); - bfd_h_put_32 (abfd, seg->vmaddr, buf + 16); - bfd_h_put_32 (abfd, seg->vmsize, buf + 20); - bfd_h_put_32 (abfd, seg->fileoff, buf + 24); - bfd_h_put_32 (abfd, seg->filesize, buf + 28); - bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32); - bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36); - bfd_h_put_32 (abfd, seg->nsects, buf + 40); - bfd_h_put_32 (abfd, seg->flags, buf + 44); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 48, abfd) != 48) - return -1; - - { - char buf[1024]; - bfd_vma nbytes = seg->filesize; - bfd_vma curoff = seg->fileoff; - - while (nbytes > 0) - { - bfd_vma thisread = nbytes; - - if (thisread > 1024) - thisread = 1024; - - bfd_seek (abfd, curoff, SEEK_SET); - if (bfd_bread ((PTR) buf, thisread, abfd) != thisread) - return -1; - - bfd_seek (abfd, curoff, SEEK_SET); - if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread) - return -1; - - nbytes -= thisread; - curoff += thisread; - } - } - - for (i = 0; i < seg->nsects; i++) - { - bfd_vma segoff = command->offset + 48 + 8 + (i * 68); - - if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0) - return -1; - } - - return 0; -} - -static int -bfd_mach_o_scan_write_symtab_symbols (bfd *abfd, - bfd_mach_o_load_command *command) -{ - bfd_mach_o_symtab_command *sym = &command->command.symtab; - asymbol *s = NULL; - unsigned long i; - - for (i = 0; i < sym->nsyms; i++) - { - unsigned char buf[12]; - bfd_vma symoff = sym->symoff + (i * 12); - unsigned char ntype = 0; - unsigned char nsect = 0; - short ndesc = 0; - - s = &sym->symbols[i]; - - /* Instead just set from the stored values. */ - ntype = (s->udata.i >> 24) & 0xff; - nsect = (s->udata.i >> 16) & 0xff; - ndesc = s->udata.i & 0xffff; - - bfd_h_put_32 (abfd, s->name - sym->strtab, buf); - bfd_h_put_8 (abfd, ntype, buf + 4); - bfd_h_put_8 (abfd, nsect, buf + 5); - bfd_h_put_16 (abfd, ndesc, buf + 6); - bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8); - - bfd_seek (abfd, symoff, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 12, abfd) != 12) - { - fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n", - 12, (unsigned long) symoff); - return -1; - } - } - - return 0; -} - -static int -bfd_mach_o_scan_write_symtab (bfd *abfd, bfd_mach_o_load_command *command) -{ - bfd_mach_o_symtab_command *seg = &command->command.symtab; - unsigned char buf[16]; - - BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); - - bfd_h_put_32 (abfd, seg->symoff, buf); - bfd_h_put_32 (abfd, seg->nsyms, buf + 4); - bfd_h_put_32 (abfd, seg->stroff, buf + 8); - bfd_h_put_32 (abfd, seg->strsize, buf + 12); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 16, abfd) != 16) - return -1; - - if (bfd_mach_o_scan_write_symtab_symbols (abfd, command) != 0) - return -1; - - return 0; -} - -static bfd_boolean -bfd_mach_o_write_contents (bfd *abfd) -{ - unsigned int i; - asection *s; - - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - - /* Write data sections first in case they overlap header data to be - written later. */ - - for (s = abfd->sections; s != (asection *) NULL; s = s->next) - ; - - /* Now write header information. */ - if (bfd_mach_o_write_header (abfd, &mdata->header) != 0) - return FALSE; - - for (i = 0; i < mdata->header.ncmds; i++) - { - unsigned char buf[8]; - bfd_mach_o_load_command *cur = &mdata->commands[i]; - unsigned long typeflag; - - typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type; - - bfd_h_put_32 (abfd, typeflag, buf); - bfd_h_put_32 (abfd, cur->len, buf + 4); - - bfd_seek (abfd, cur->offset, SEEK_SET); - if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) - return FALSE; - - switch (cur->type) - { - case BFD_MACH_O_LC_SEGMENT: - if (bfd_mach_o_scan_write_segment (abfd, cur) != 0) - return FALSE; - break; - case BFD_MACH_O_LC_SYMTAB: - if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0) - return FALSE; - break; - case BFD_MACH_O_LC_SYMSEG: - break; - case BFD_MACH_O_LC_THREAD: - case BFD_MACH_O_LC_UNIXTHREAD: - if (bfd_mach_o_scan_write_thread (abfd, cur) != 0) - return FALSE; - break; - case BFD_MACH_O_LC_LOADFVMLIB: - case BFD_MACH_O_LC_IDFVMLIB: - case BFD_MACH_O_LC_IDENT: - case BFD_MACH_O_LC_FVMFILE: - case BFD_MACH_O_LC_PREPAGE: - case BFD_MACH_O_LC_DYSYMTAB: - case BFD_MACH_O_LC_LOAD_DYLIB: - case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: - case BFD_MACH_O_LC_ID_DYLIB: - case BFD_MACH_O_LC_LOAD_DYLINKER: - case BFD_MACH_O_LC_ID_DYLINKER: - case BFD_MACH_O_LC_PREBOUND_DYLIB: - case BFD_MACH_O_LC_ROUTINES: - case BFD_MACH_O_LC_SUB_FRAMEWORK: - break; - default: - fprintf (stderr, - "unable to write unknown load command 0x%lx\n", - (long) cur->type); - return FALSE; - } - } - - return TRUE; -} - -static int -bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED, - bfd_boolean b ATTRIBUTE_UNUSED) -{ - return 0; -} - -/* Make an empty symbol. This is required only because - bfd_make_section_anyway wants to create a symbol for the section. */ - -static asymbol * -bfd_mach_o_make_empty_symbol (bfd *abfd) -{ - asymbol *new; - - new = bfd_zalloc (abfd, sizeof (* new)); - if (new == NULL) - return new; - new->the_bfd = abfd; - return new; -} - -static int -bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header) -{ - unsigned char buf[28]; - bfd_vma (*get32) (const void *) = NULL; - - bfd_seek (abfd, 0, SEEK_SET); - - if (bfd_bread ((PTR) buf, 28, abfd) != 28) - return -1; - - if (bfd_getb32 (buf) == 0xfeedface) - { - header->byteorder = BFD_ENDIAN_BIG; - header->magic = 0xfeedface; - get32 = bfd_getb32; - } - else if (bfd_getl32 (buf) == 0xfeedface) - { - header->byteorder = BFD_ENDIAN_LITTLE; - header->magic = 0xfeedface; - get32 = bfd_getl32; - } - else - { - header->byteorder = BFD_ENDIAN_UNKNOWN; - return -1; - } - - header->cputype = (*get32) (buf + 4); - header->cpusubtype = (*get32) (buf + 8); - header->filetype = (*get32) (buf + 12); - header->ncmds = (*get32) (buf + 16); - header->sizeofcmds = (*get32) (buf + 20); - header->flags = (*get32) (buf + 24); - - return 0; -} - -static asection * -bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section) -{ - asection *bfdsec; - char *sname; - const char *prefix = "LC_SEGMENT"; - unsigned int snamelen; - - snamelen = strlen (prefix) + 1 - + strlen (section->segname) + 1 - + strlen (section->sectname) + 1; - - sname = bfd_alloc (abfd, snamelen); - if (sname == NULL) - return NULL; - sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return NULL; - - bfdsec->vma = section->addr; - bfdsec->lma = section->addr; - bfdsec->size = section->size; - bfdsec->filepos = section->offset; - bfdsec->alignment_power = section->align; - - if (section->flags & BFD_MACH_O_S_ZEROFILL) - bfdsec->flags = SEC_ALLOC; - else - bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; - - return bfdsec; -} - -static int -bfd_mach_o_scan_read_section (bfd *abfd, - bfd_mach_o_section *section, - bfd_vma offset) -{ - unsigned char buf[68]; - - bfd_seek (abfd, offset, SEEK_SET); - if (bfd_bread ((PTR) buf, 68, abfd) != 68) - return -1; - - memcpy (section->sectname, buf, 16); - section->sectname[16] = '\0'; - memcpy (section->segname, buf + 16, 16); - section->segname[16] = '\0'; - section->addr = bfd_h_get_32 (abfd, buf + 32); - section->size = bfd_h_get_32 (abfd, buf + 36); - section->offset = bfd_h_get_32 (abfd, buf + 40); - section->align = bfd_h_get_32 (abfd, buf + 44); - section->reloff = bfd_h_get_32 (abfd, buf + 48); - section->nreloc = bfd_h_get_32 (abfd, buf + 52); - section->flags = bfd_h_get_32 (abfd, buf + 56); - section->reserved1 = bfd_h_get_32 (abfd, buf + 60); - section->reserved2 = bfd_h_get_32 (abfd, buf + 64); - section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section); - - if (section->bfdsection == NULL) - return -1; - - return 0; -} - -int -bfd_mach_o_scan_read_symtab_symbol (bfd *abfd, - bfd_mach_o_symtab_command *sym, - asymbol *s, - unsigned long i) -{ - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - bfd_vma symoff = sym->symoff + (i * 12); - unsigned char buf[12]; - unsigned char type = -1; - unsigned char section = -1; - short desc = -1; - unsigned long value = -1; - unsigned long stroff = -1; - unsigned int symtype = -1; - - BFD_ASSERT (sym->strtab != NULL); - - bfd_seek (abfd, symoff, SEEK_SET); - if (bfd_bread ((PTR) buf, 12, abfd) != 12) - { - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n", - 12, (unsigned long) symoff); - return -1; - } - - stroff = bfd_h_get_32 (abfd, buf); - type = bfd_h_get_8 (abfd, buf + 4); - symtype = (type & 0x0e); - section = bfd_h_get_8 (abfd, buf + 5) - 1; - desc = bfd_h_get_16 (abfd, buf + 6); - value = bfd_h_get_32 (abfd, buf + 8); - - if (stroff >= sym->strsize) - { - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n", - (unsigned long) stroff, (unsigned long) sym->strsize); - return -1; - } - - s->the_bfd = abfd; - s->name = sym->strtab + stroff; - s->value = value; - s->udata.i = (type << 24) | (section << 16) | desc; - s->flags = 0x0; - - if (type & BFD_MACH_O_N_STAB) - { - s->flags |= BSF_DEBUGGING; - s->section = bfd_und_section_ptr; - } - else - { - if (type & BFD_MACH_O_N_PEXT) - { - type &= ~BFD_MACH_O_N_PEXT; - s->flags |= BSF_GLOBAL; - } - - if (type & BFD_MACH_O_N_EXT) - { - type &= ~BFD_MACH_O_N_EXT; - s->flags |= BSF_GLOBAL; - } - - switch (symtype) - { - case BFD_MACH_O_N_UNDF: - s->section = bfd_und_section_ptr; - break; - case BFD_MACH_O_N_PBUD: - s->section = bfd_und_section_ptr; - break; - case BFD_MACH_O_N_ABS: - s->section = bfd_abs_section_ptr; - break; - case BFD_MACH_O_N_SECT: - if ((section > 0) && (section <= mdata->nsects)) - { - s->section = mdata->sections[section - 1]->bfdsection; - s->value = s->value - mdata->sections[section - 1]->addr; - } - else - { - /* Mach-O uses 0 to mean "no section"; not an error. */ - if (section != 0) - { - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " - "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n", - s->name, section, mdata->nsects); - } - s->section = bfd_und_section_ptr; - } - break; - case BFD_MACH_O_N_INDR: - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " - "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n", - s->name); - s->section = bfd_und_section_ptr; - break; - default: - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " - "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n", - s->name, symtype); - s->section = bfd_und_section_ptr; - break; - } - } - - return 0; -} - -int -bfd_mach_o_scan_read_symtab_strtab (bfd *abfd, - bfd_mach_o_symtab_command *sym) -{ - BFD_ASSERT (sym->strtab == NULL); - - if (abfd->flags & BFD_IN_MEMORY) - { - struct bfd_in_memory *b; - - b = (struct bfd_in_memory *) abfd->iostream; - - if ((sym->stroff + sym->strsize) > b->size) - { - bfd_set_error (bfd_error_file_truncated); - return -1; - } - sym->strtab = (char *) b->buffer + sym->stroff; - return 0; - } - - sym->strtab = bfd_alloc (abfd, sym->strsize); - if (sym->strtab == NULL) - return -1; - - bfd_seek (abfd, sym->stroff, SEEK_SET); - if (bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize) - { - fprintf (stderr, "bfd_mach_o_scan_read_symtab_strtab: unable to read %lu bytes at %lu\n", - sym->strsize, sym->stroff); - return -1; - } - - return 0; -} - -int -bfd_mach_o_scan_read_symtab_symbols (bfd *abfd, - bfd_mach_o_symtab_command *sym) -{ - unsigned long i; - int ret; - - BFD_ASSERT (sym->symbols == NULL); - sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (asymbol)); - - if (sym->symbols == NULL) - { - fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n"); - return -1; - } - - ret = bfd_mach_o_scan_read_symtab_strtab (abfd, sym); - if (ret != 0) - return ret; - - for (i = 0; i < sym->nsyms; i++) - { - ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i); - if (ret != 0) - return ret; - } - - return 0; -} - -int -bfd_mach_o_scan_read_dysymtab_symbol (bfd *abfd, - bfd_mach_o_dysymtab_command *dysym, - bfd_mach_o_symtab_command *sym, - asymbol *s, - unsigned long i) -{ - unsigned long isymoff = dysym->indirectsymoff + (i * 4); - unsigned long symindex; - unsigned char buf[4]; - - BFD_ASSERT (i < dysym->nindirectsyms); - - bfd_seek (abfd, isymoff, SEEK_SET); - if (bfd_bread ((PTR) buf, 4, abfd) != 4) - { - fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n", - (unsigned long) 4, isymoff); - return -1; - } - symindex = bfd_h_get_32 (abfd, buf); - - return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex); -} - -static const char * -bfd_mach_o_i386_flavour_string (unsigned int flavour) -{ - switch ((int) flavour) - { - case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE"; - case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE"; - case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE"; - case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE"; - case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE"; - case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE"; - case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE"; - case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE"; - case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE"; - case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE"; - case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE"; - case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE"; - default: return "UNKNOWN"; - } -} - -static const char * -bfd_mach_o_ppc_flavour_string (unsigned int flavour) -{ - switch ((int) flavour) - { - case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; - case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; - case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; - case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; - default: return "UNKNOWN"; - } -} - -static int -bfd_mach_o_scan_read_dylinker (bfd *abfd, - bfd_mach_o_load_command *command) -{ - bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; - unsigned char buf[4]; - unsigned int nameoff; - asection *bfdsec; - char *sname; - const char *prefix; - - BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) - || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bread ((PTR) buf, 4, abfd) != 4) - return -1; - - nameoff = bfd_h_get_32 (abfd, buf + 0); - - cmd->name_offset = command->offset + nameoff; - cmd->name_len = command->len - nameoff; - - if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER) - prefix = "LC_LOAD_DYLINKER"; - else if (command->type == BFD_MACH_O_LC_ID_DYLINKER) - prefix = "LC_ID_DYLINKER"; - else - abort (); - - sname = bfd_alloc (abfd, strlen (prefix) + 1); - if (sname == NULL) - return -1; - strcpy (sname, prefix); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return -1; - - bfdsec->vma = 0; - bfdsec->lma = 0; - bfdsec->size = command->len - 8; - bfdsec->filepos = command->offset + 8; - bfdsec->alignment_power = 0; - bfdsec->flags = SEC_HAS_CONTENTS; - - cmd->section = bfdsec; - - return 0; -} - -static int -bfd_mach_o_scan_read_dylib (bfd *abfd, bfd_mach_o_load_command *command) -{ - bfd_mach_o_dylib_command *cmd = &command->command.dylib; - unsigned char buf[16]; - unsigned int nameoff; - asection *bfdsec; - char *sname; - const char *prefix; - - BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB) - || (command->type == BFD_MACH_O_LC_LOAD_DYLIB) - || (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bread ((PTR) buf, 16, abfd) != 16) - return -1; - - nameoff = bfd_h_get_32 (abfd, buf + 0); - cmd->timestamp = bfd_h_get_32 (abfd, buf + 4); - cmd->current_version = bfd_h_get_32 (abfd, buf + 8); - cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12); - - cmd->name_offset = command->offset + nameoff; - cmd->name_len = command->len - nameoff; - - if (command->type == BFD_MACH_O_LC_LOAD_DYLIB) - prefix = "LC_LOAD_DYLIB"; - else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB) - prefix = "LC_LOAD_WEAK_DYLIB"; - else if (command->type == BFD_MACH_O_LC_ID_DYLIB) - prefix = "LC_ID_DYLIB"; - else - abort (); - - sname = bfd_alloc (abfd, strlen (prefix) + 1); - if (sname == NULL) - return -1; - strcpy (sname, prefix); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return -1; - - bfdsec->vma = 0; - bfdsec->lma = 0; - bfdsec->size = command->len - 8; - bfdsec->filepos = command->offset + 8; - bfdsec->alignment_power = 0; - bfdsec->flags = SEC_HAS_CONTENTS; - - cmd->section = bfdsec; - - return 0; -} - -static int -bfd_mach_o_scan_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED, - bfd_mach_o_load_command *command ATTRIBUTE_UNUSED) -{ - /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ - - BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); - return 0; -} - -static int -bfd_mach_o_scan_read_thread (bfd *abfd, bfd_mach_o_load_command *command) -{ - bfd_mach_o_data_struct *mdata = NULL; - bfd_mach_o_thread_command *cmd = &command->command.thread; - unsigned char buf[8]; - bfd_vma offset; - unsigned int nflavours; - unsigned int i; - - BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) - || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); - - BFD_ASSERT (bfd_mach_o_valid (abfd)); - mdata = abfd->tdata.mach_o_data; - - offset = 8; - nflavours = 0; - while (offset != command->len) - { - if (offset >= command->len) - return -1; - - bfd_seek (abfd, command->offset + offset, SEEK_SET); - - if (bfd_bread ((PTR) buf, 8, abfd) != 8) - return -1; - - offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4; - nflavours++; - } - - cmd->flavours = bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)); - if (cmd->flavours == NULL) - return -1; - cmd->nflavours = nflavours; - - offset = 8; - nflavours = 0; - while (offset != command->len) - { - if (offset >= command->len) - return -1; - - if (nflavours >= cmd->nflavours) - return -1; - - bfd_seek (abfd, command->offset + offset, SEEK_SET); - - if (bfd_bread ((PTR) buf, 8, abfd) != 8) - return -1; - - cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf); - cmd->flavours[nflavours].offset = command->offset + offset + 8; - cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4; - offset += cmd->flavours[nflavours].size + 8; - nflavours++; - } - - for (i = 0; i < nflavours; i++) - { - asection *bfdsec; - unsigned int snamelen; - char *sname; - const char *flavourstr; - const char *prefix = "LC_THREAD"; - unsigned int j = 0; - - switch (mdata->header.cputype) - { - case BFD_MACH_O_CPU_TYPE_POWERPC: - flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); - break; - case BFD_MACH_O_CPU_TYPE_I386: - flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); - break; - default: - flavourstr = "UNKNOWN_ARCHITECTURE"; - break; - } - - snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; - sname = bfd_alloc (abfd, snamelen); - if (sname == NULL) - return -1; - - for (;;) - { - sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); - if (bfd_get_section_by_name (abfd, sname) == NULL) - break; - j++; - } - - bfdsec = bfd_make_section (abfd, sname); - - bfdsec->vma = 0; - bfdsec->lma = 0; - bfdsec->size = cmd->flavours[i].size; - bfdsec->filepos = cmd->flavours[i].offset; - bfdsec->alignment_power = 0x0; - bfdsec->flags = SEC_HAS_CONTENTS; - - cmd->section = bfdsec; - } - - return 0; -} - -static int -bfd_mach_o_scan_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command) -{ - bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab; - unsigned char buf[72]; - - BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bread ((PTR) buf, 72, abfd) != 72) - return -1; - - seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0); - seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4); - seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8); - seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12); - seg->iundefsym = bfd_h_get_32 (abfd, buf + 16); - seg->nundefsym = bfd_h_get_32 (abfd, buf + 20); - seg->tocoff = bfd_h_get_32 (abfd, buf + 24); - seg->ntoc = bfd_h_get_32 (abfd, buf + 28); - seg->modtaboff = bfd_h_get_32 (abfd, buf + 32); - seg->nmodtab = bfd_h_get_32 (abfd, buf + 36); - seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40); - seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44); - seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48); - seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52); - seg->extreloff = bfd_h_get_32 (abfd, buf + 56); - seg->nextrel = bfd_h_get_32 (abfd, buf + 60); - seg->locreloff = bfd_h_get_32 (abfd, buf + 64); - seg->nlocrel = bfd_h_get_32 (abfd, buf + 68); - - return 0; -} - -static int -bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command) -{ - bfd_mach_o_symtab_command *seg = &command->command.symtab; - unsigned char buf[16]; - asection *bfdsec; - char *sname; - const char *prefix = "LC_SYMTAB.stabs"; - - BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bread ((PTR) buf, 16, abfd) != 16) - return -1; - - seg->symoff = bfd_h_get_32 (abfd, buf); - seg->nsyms = bfd_h_get_32 (abfd, buf + 4); - seg->stroff = bfd_h_get_32 (abfd, buf + 8); - seg->strsize = bfd_h_get_32 (abfd, buf + 12); - seg->symbols = NULL; - seg->strtab = NULL; - - sname = bfd_alloc (abfd, strlen (prefix) + 1); - if (sname == NULL) - return -1; - strcpy (sname, prefix); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return -1; - - bfdsec->vma = 0; - bfdsec->lma = 0; - bfdsec->size = seg->nsyms * 12; - bfdsec->filepos = seg->symoff; - bfdsec->alignment_power = 0; - bfdsec->flags = SEC_HAS_CONTENTS; - - seg->stabs_segment = bfdsec; - - prefix = "LC_SYMTAB.stabstr"; - sname = bfd_alloc (abfd, strlen (prefix) + 1); - if (sname == NULL) - return -1; - strcpy (sname, prefix); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return -1; - - bfdsec->vma = 0; - bfdsec->lma = 0; - bfdsec->size = seg->strsize; - bfdsec->filepos = seg->stroff; - bfdsec->alignment_power = 0; - bfdsec->flags = SEC_HAS_CONTENTS; - - seg->stabstr_segment = bfdsec; - - return 0; -} - -static int -bfd_mach_o_scan_read_segment (bfd *abfd, bfd_mach_o_load_command *command) -{ - unsigned char buf[48]; - bfd_mach_o_segment_command *seg = &command->command.segment; - unsigned long i; - asection *bfdsec; - char *sname; - const char *prefix = "LC_SEGMENT"; - unsigned int snamelen; - - BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); - - bfd_seek (abfd, command->offset + 8, SEEK_SET); - if (bfd_bread ((PTR) buf, 48, abfd) != 48) - return -1; - - memcpy (seg->segname, buf, 16); - seg->vmaddr = bfd_h_get_32 (abfd, buf + 16); - seg->vmsize = bfd_h_get_32 (abfd, buf + 20); - seg->fileoff = bfd_h_get_32 (abfd, buf + 24); - seg->filesize = bfd_h_get_32 (abfd, buf + 28); - /* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */ - /* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */ - seg->nsects = bfd_h_get_32 (abfd, buf + 40); - seg->flags = bfd_h_get_32 (abfd, buf + 44); - - snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1; - sname = bfd_alloc (abfd, snamelen); - if (sname == NULL) - return -1; - sprintf (sname, "%s.%s", prefix, seg->segname); - - bfdsec = bfd_make_section_anyway (abfd, sname); - if (bfdsec == NULL) - return -1; - - bfdsec->vma = seg->vmaddr; - bfdsec->lma = seg->vmaddr; - bfdsec->size = seg->filesize; - bfdsec->filepos = seg->fileoff; - bfdsec->alignment_power = 0x0; - bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; - - seg->segment = bfdsec; - - if (seg->nsects != 0) - { - seg->sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section)); - if (seg->sections == NULL) - return -1; - - for (i = 0; i < seg->nsects; i++) - { - bfd_vma segoff = command->offset + 48 + 8 + (i * 68); - - if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i], - segoff) != 0) - return -1; - } - } - - return 0; -} - -static int -bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command) -{ - unsigned char buf[8]; - - bfd_seek (abfd, command->offset, SEEK_SET); - if (bfd_bread ((PTR) buf, 8, abfd) != 8) - return -1; - - command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD); - command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD - ? 1 : 0); - command->len = bfd_h_get_32 (abfd, buf + 4); - - switch (command->type) - { - case BFD_MACH_O_LC_SEGMENT: - if (bfd_mach_o_scan_read_segment (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_SYMTAB: - if (bfd_mach_o_scan_read_symtab (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_SYMSEG: - break; - case BFD_MACH_O_LC_THREAD: - case BFD_MACH_O_LC_UNIXTHREAD: - if (bfd_mach_o_scan_read_thread (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_LOAD_DYLINKER: - case BFD_MACH_O_LC_ID_DYLINKER: - if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_LOAD_DYLIB: - case BFD_MACH_O_LC_ID_DYLIB: - case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: - if (bfd_mach_o_scan_read_dylib (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_PREBOUND_DYLIB: - if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_LOADFVMLIB: - case BFD_MACH_O_LC_IDFVMLIB: - case BFD_MACH_O_LC_IDENT: - case BFD_MACH_O_LC_FVMFILE: - case BFD_MACH_O_LC_PREPAGE: - case BFD_MACH_O_LC_ROUTINES: - case BFD_MACH_O_LC_SUB_FRAMEWORK: - break; - case BFD_MACH_O_LC_DYSYMTAB: - if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0) - return -1; - break; - case BFD_MACH_O_LC_SUB_UMBRELLA: - case BFD_MACH_O_LC_SUB_CLIENT: - case BFD_MACH_O_LC_SUB_LIBRARY: - case BFD_MACH_O_LC_TWOLEVEL_HINTS: - case BFD_MACH_O_LC_PREBIND_CKSUM: - break; - default: - fprintf (stderr, "unable to read unknown load command 0x%lx\n", - (unsigned long) command->type); - break; - } - - return 0; -} - -static void -bfd_mach_o_flatten_sections (bfd *abfd) -{ - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - long csect = 0; - unsigned long i, j; - - mdata->nsects = 0; - - for (i = 0; i < mdata->header.ncmds; i++) - { - if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) - { - bfd_mach_o_segment_command *seg; - - seg = &mdata->commands[i].command.segment; - mdata->nsects += seg->nsects; - } - } - - mdata->sections = bfd_alloc (abfd, - mdata->nsects * sizeof (bfd_mach_o_section *)); - csect = 0; - - for (i = 0; i < mdata->header.ncmds; i++) - { - if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) - { - bfd_mach_o_segment_command *seg; - - seg = &mdata->commands[i].command.segment; - BFD_ASSERT (csect + seg->nsects <= mdata->nsects); - - for (j = 0; j < seg->nsects; j++) - mdata->sections[csect++] = &seg->sections[j]; - } - } -} - -int -bfd_mach_o_scan_start_address (bfd *abfd) -{ - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - bfd_mach_o_thread_command *cmd = NULL; - unsigned long i; - - for (i = 0; i < mdata->header.ncmds; i++) - { - if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || - (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) - { - if (cmd == NULL) - cmd = &mdata->commands[i].command.thread; - else - return 0; - } - } - - if (cmd == NULL) - return 0; - - for (i = 0; i < cmd->nflavours; i++) - { - if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) - && (cmd->flavours[i].flavour - == (unsigned long) BFD_MACH_O_i386_THREAD_STATE)) - { - unsigned char buf[4]; - - bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET); - - if (bfd_bread (buf, 4, abfd) != 4) - return -1; - - abfd->start_address = bfd_h_get_32 (abfd, buf); - } - else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) - && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) - { - unsigned char buf[4]; - - bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET); - - if (bfd_bread (buf, 4, abfd) != 4) - return -1; - - abfd->start_address = bfd_h_get_32 (abfd, buf); - } - } - - return 0; -} - -int -bfd_mach_o_scan (bfd *abfd, - bfd_mach_o_header *header, - bfd_mach_o_data_struct *mdata) -{ - unsigned int i; - enum bfd_architecture cputype; - unsigned long cpusubtype; - - mdata->header = *header; - mdata->symbols = NULL; - - abfd->flags = (abfd->xvec->object_flags - | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS))); - abfd->tdata.mach_o_data = mdata; - - bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, - &cputype, &cpusubtype); - if (cputype == bfd_arch_unknown) - { - fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n", - header->cputype, header->cpusubtype); - return -1; - } - - bfd_set_arch_mach (abfd, cputype, cpusubtype); - - if (header->ncmds != 0) - { - mdata->commands = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)); - if (mdata->commands == NULL) - return -1; - - for (i = 0; i < header->ncmds; i++) - { - bfd_mach_o_load_command *cur = &mdata->commands[i]; - - if (i == 0) - cur->offset = 28; - else - { - bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; - cur->offset = prev->offset + prev->len; - } - - if (bfd_mach_o_scan_read_command (abfd, cur) < 0) - return -1; - } - } - - if (bfd_mach_o_scan_start_address (abfd) < 0) - return -1; - - bfd_mach_o_flatten_sections (abfd); - return 0; -} - -bfd_boolean -bfd_mach_o_mkobject (bfd *abfd) -{ - bfd_mach_o_data_struct *mdata = NULL; - - mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)); - if (mdata == NULL) - return FALSE; - abfd->tdata.mach_o_data = mdata; - - mdata->header.magic = 0; - mdata->header.cputype = 0; - mdata->header.cpusubtype = 0; - mdata->header.filetype = 0; - mdata->header.ncmds = 0; - mdata->header.sizeofcmds = 0; - mdata->header.flags = 0; - mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; - mdata->commands = NULL; - mdata->nsymbols = 0; - mdata->symbols = NULL; - mdata->nsects = 0; - mdata->sections = NULL; - mdata->ibfd = NULL; - - return TRUE; -} - -const bfd_target * -bfd_mach_o_object_p (bfd *abfd) -{ - struct bfd_preserve preserve; - bfd_mach_o_header header; - - preserve.marker = NULL; - if (bfd_mach_o_read_header (abfd, &header) != 0) - goto wrong; - - if (! (header.byteorder == BFD_ENDIAN_BIG - || header.byteorder == BFD_ENDIAN_LITTLE)) - { - fprintf (stderr, "unknown header byte-order value 0x%lx\n", - (long) header.byteorder); - goto wrong; - } - - if (! ((header.byteorder == BFD_ENDIAN_BIG - && abfd->xvec->byteorder == BFD_ENDIAN_BIG - && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) - || (header.byteorder == BFD_ENDIAN_LITTLE - && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE - && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) - goto wrong; - - preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); - if (preserve.marker == NULL - || !bfd_preserve_save (abfd, &preserve)) - goto fail; - - if (bfd_mach_o_scan (abfd, &header, - (bfd_mach_o_data_struct *) preserve.marker) != 0) - goto wrong; - - bfd_preserve_finish (abfd, &preserve); - return abfd->xvec; - - wrong: - bfd_set_error (bfd_error_wrong_format); - - fail: - if (preserve.marker != NULL) - bfd_preserve_restore (abfd, &preserve); - return NULL; -} - -const bfd_target * -bfd_mach_o_core_p (bfd *abfd) -{ - struct bfd_preserve preserve; - bfd_mach_o_header header; - - preserve.marker = NULL; - if (bfd_mach_o_read_header (abfd, &header) != 0) - goto wrong; - - if (! (header.byteorder == BFD_ENDIAN_BIG - || header.byteorder == BFD_ENDIAN_LITTLE)) - { - fprintf (stderr, "unknown header byte-order value 0x%lx\n", - (long) header.byteorder); - abort (); - } - - if (! ((header.byteorder == BFD_ENDIAN_BIG - && abfd->xvec->byteorder == BFD_ENDIAN_BIG - && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) - || (header.byteorder == BFD_ENDIAN_LITTLE - && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE - && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) - goto wrong; - - if (header.filetype != BFD_MACH_O_MH_CORE) - goto wrong; - - preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); - if (preserve.marker == NULL - || !bfd_preserve_save (abfd, &preserve)) - goto fail; - - if (bfd_mach_o_scan (abfd, &header, - (bfd_mach_o_data_struct *) preserve.marker) != 0) - goto wrong; - - bfd_preserve_finish (abfd, &preserve); - return abfd->xvec; - - wrong: - bfd_set_error (bfd_error_wrong_format); - - fail: - if (preserve.marker != NULL) - bfd_preserve_restore (abfd, &preserve); - return NULL; -} - -typedef struct mach_o_fat_archentry -{ - unsigned long cputype; - unsigned long cpusubtype; - unsigned long offset; - unsigned long size; - unsigned long align; - bfd *abfd; -} mach_o_fat_archentry; - -typedef struct mach_o_fat_data_struct -{ - unsigned long magic; - unsigned long nfat_arch; - mach_o_fat_archentry *archentries; -} mach_o_fat_data_struct; - -const bfd_target * -bfd_mach_o_archive_p (bfd *abfd) -{ - mach_o_fat_data_struct *adata = NULL; - unsigned char buf[20]; - unsigned long i; - - bfd_seek (abfd, 0, SEEK_SET); - if (bfd_bread ((PTR) buf, 8, abfd) != 8) - goto error; - - adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); - if (adata == NULL) - goto error; - - adata->magic = bfd_getb32 (buf); - adata->nfat_arch = bfd_getb32 (buf + 4); - if (adata->magic != 0xcafebabe) - goto error; - - adata->archentries = - bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); - if (adata->archentries == NULL) - goto error; - - for (i = 0; i < adata->nfat_arch; i++) - { - bfd_seek (abfd, 8 + 20 * i, SEEK_SET); - - if (bfd_bread ((PTR) buf, 20, abfd) != 20) - goto error; - adata->archentries[i].cputype = bfd_getb32 (buf); - adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4); - adata->archentries[i].offset = bfd_getb32 (buf + 8); - adata->archentries[i].size = bfd_getb32 (buf + 12); - adata->archentries[i].align = bfd_getb32 (buf + 16); - adata->archentries[i].abfd = NULL; - } - - abfd->tdata.mach_o_fat_data = adata; - return abfd->xvec; - - error: - if (adata != NULL) - bfd_release (abfd, adata); - bfd_set_error (bfd_error_wrong_format); - return NULL; -} - -bfd * -bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev) -{ - mach_o_fat_data_struct *adata; - mach_o_fat_archentry *entry = NULL; - unsigned long i; - - adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; - BFD_ASSERT (adata != NULL); - - /* Find index of previous entry. */ - if (prev == NULL) - i = 0; /* Start at first one. */ - else - { - for (i = 0; i < adata->nfat_arch; i++) - { - if (adata->archentries[i].abfd == prev) - break; - } - - if (i == adata->nfat_arch) - { - /* Not found. */ - bfd_set_error (bfd_error_bad_value); - return NULL; - } - i++; /* Get next entry. */ - } - - if (i >= adata->nfat_arch) - { - bfd_set_error (bfd_error_no_more_archived_files); - return NULL; - } - - entry = &adata->archentries[i]; - if (entry->abfd == NULL) - { - bfd *nbfd = _bfd_new_bfd_contained_in (archive); - char *s = NULL; - - if (nbfd == NULL) - return NULL; - - nbfd->origin = entry->offset; - s = bfd_malloc (strlen (archive->filename) + 1); - if (s == NULL) - return NULL; - strcpy (s, archive->filename); - nbfd->filename = s; - nbfd->iostream = NULL; - entry->abfd = nbfd; - } - - return entry->abfd; -} - -int -bfd_mach_o_lookup_section (bfd *abfd, - asection *section, - bfd_mach_o_load_command **mcommand, - bfd_mach_o_section **msection) -{ - struct mach_o_data_struct *md = abfd->tdata.mach_o_data; - unsigned int i, j, num; - - bfd_mach_o_load_command *ncmd = NULL; - bfd_mach_o_section *nsect = NULL; - - BFD_ASSERT (mcommand != NULL); - BFD_ASSERT (msection != NULL); - - num = 0; - for (i = 0; i < md->header.ncmds; i++) - { - struct bfd_mach_o_load_command *cmd = &md->commands[i]; - struct bfd_mach_o_segment_command *seg = NULL; - - if (cmd->type != BFD_MACH_O_LC_SEGMENT) - continue; - seg = &cmd->command.segment; - - if (seg->segment == section) - { - if (num == 0) - ncmd = cmd; - num++; - } - - for (j = 0; j < seg->nsects; j++) - { - struct bfd_mach_o_section *sect = &seg->sections[j]; - - if (sect->bfdsection == section) - { - if (num == 0) - nsect = sect; - num++; - } - } - } - - *mcommand = ncmd; - *msection = nsect; - return num; -} - -int -bfd_mach_o_lookup_command (bfd *abfd, - bfd_mach_o_load_command_type type, - bfd_mach_o_load_command **mcommand) -{ - struct mach_o_data_struct *md = NULL; - bfd_mach_o_load_command *ncmd = NULL; - unsigned int i, num; - - md = abfd->tdata.mach_o_data; - - BFD_ASSERT (md != NULL); - BFD_ASSERT (mcommand != NULL); - - num = 0; - for (i = 0; i < md->header.ncmds; i++) - { - struct bfd_mach_o_load_command *cmd = &md->commands[i]; - - if (cmd->type != type) - continue; - - if (num == 0) - ncmd = cmd; - num++; - } - - *mcommand = ncmd; - return num; -} - -unsigned long -bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type) -{ - switch (type) - { - case BFD_MACH_O_CPU_TYPE_MC680x0: - return 0x04000000; - case BFD_MACH_O_CPU_TYPE_MC88000: - return 0xffffe000; - case BFD_MACH_O_CPU_TYPE_POWERPC: - return 0xc0000000; - case BFD_MACH_O_CPU_TYPE_I386: - return 0xc0000000; - case BFD_MACH_O_CPU_TYPE_SPARC: - return 0xf0000000; - case BFD_MACH_O_CPU_TYPE_I860: - return 0; - case BFD_MACH_O_CPU_TYPE_HPPA: - return 0xc0000000 - 0x04000000; - default: - return 0; - } -} - -int -bfd_mach_o_core_fetch_environment (bfd *abfd, - unsigned char **rbuf, - unsigned int *rlen) -{ - bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; - unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); - unsigned int i = 0; - - for (i = 0; i < mdata->header.ncmds; i++) - { - bfd_mach_o_load_command *cur = &mdata->commands[i]; - bfd_mach_o_segment_command *seg = NULL; - - if (cur->type != BFD_MACH_O_LC_SEGMENT) - continue; - - seg = &cur->command.segment; - - if ((seg->vmaddr + seg->vmsize) == stackaddr) - { - unsigned long start = seg->fileoff; - unsigned long end = seg->fileoff + seg->filesize; - unsigned char *buf = bfd_malloc (1024); - unsigned long size = 1024; - - for (;;) - { - bfd_size_type nread = 0; - unsigned long offset; - int found_nonnull = 0; - - if (size > (end - start)) - size = (end - start); - - buf = bfd_realloc (buf, size); - - bfd_seek (abfd, end - size, SEEK_SET); - nread = bfd_bread (buf, size, abfd); - - if (nread != size) - return -1; - - for (offset = 4; offset <= size; offset += 4) - { - unsigned long val; - - val = *((unsigned long *) (buf + size - offset)); - if (! found_nonnull) - { - if (val != 0) - found_nonnull = 1; - } - else if (val == 0x0) - { - unsigned long bottom; - unsigned long top; - - bottom = seg->fileoff + seg->filesize - offset; - top = seg->fileoff + seg->filesize - 4; - *rbuf = bfd_malloc (top - bottom); - *rlen = top - bottom; - - memcpy (*rbuf, buf + size - *rlen, *rlen); - return 0; - } - } - - if (size == (end - start)) - break; - - size *= 2; - } - } - } - - return -1; -} - -char * -bfd_mach_o_core_file_failing_command (bfd *abfd) -{ - unsigned char *buf = NULL; - unsigned int len = 0; - int ret = -1; - - ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); - if (ret < 0) - return NULL; - - return (char *) buf; -} - -int -bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED) -{ - return 0; -} - -#define TARGET_NAME mach_o_be_vec -#define TARGET_STRING "mach-o-be" -#define TARGET_BIG_ENDIAN 1 -#define TARGET_ARCHIVE 0 - -#include "mach-o-target.c" - -#undef TARGET_NAME -#undef TARGET_STRING -#undef TARGET_BIG_ENDIAN -#undef TARGET_ARCHIVE - -#define TARGET_NAME mach_o_le_vec -#define TARGET_STRING "mach-o-le" -#define TARGET_BIG_ENDIAN 0 -#define TARGET_ARCHIVE 0 - -#include "mach-o-target.c" - -#undef TARGET_NAME -#undef TARGET_STRING -#undef TARGET_BIG_ENDIAN -#undef TARGET_ARCHIVE - -#define TARGET_NAME mach_o_fat_vec -#define TARGET_STRING "mach-o-fat" -#define TARGET_BIG_ENDIAN 1 -#define TARGET_ARCHIVE 1 - -#include "mach-o-target.c" - -#undef TARGET_NAME -#undef TARGET_STRING -#undef TARGET_BIG_ENDIAN -#undef TARGET_ARCHIVE |