diff options
author | Tristan Gingold <gingold@adacore.com> | 2011-12-13 10:00:40 +0000 |
---|---|---|
committer | Tristan Gingold <gingold@adacore.com> | 2011-12-13 10:00:40 +0000 |
commit | 12fa714fff89955edffae0f03c5122a0f5f4b457 (patch) | |
tree | 32c6c36f180c9f37b31b9b9321da2fa1263d1e43 /binutils | |
parent | c5012cd8d53be0c5a3b0b4ae2a054b0a3dadbca2 (diff) | |
download | gdb-12fa714fff89955edffae0f03c5122a0f5f4b457.zip gdb-12fa714fff89955edffae0f03c5122a0f5f4b457.tar.gz gdb-12fa714fff89955edffae0f03c5122a0f5f4b457.tar.bz2 |
Missing file from my previous commit.
Diffstat (limited to 'binutils')
-rw-r--r-- | binutils/od-macho.c | 798 |
1 files changed, 798 insertions, 0 deletions
diff --git a/binutils/od-macho.c b/binutils/od-macho.c new file mode 100644 index 0000000..7f8efad --- /dev/null +++ b/binutils/od-macho.c @@ -0,0 +1,798 @@ +/* od-macho.c -- dump information about an Mach-O object file. + Copyright 2011 Free Software Foundation, Inc. + Written by Tristan Gingold, Adacore. + + This file is part of GNU Binutils. + + 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, 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, 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include <stddef.h> +#include <time.h> +#include "sysdep.h" +#include "safe-ctype.h" +#include "bfd.h" +#include "objdump.h" +#include "bucomm.h" +#include "bfdlink.h" +#include "mach-o.h" +#include "mach-o/external.h" + +/* Index of the options in the options[] array. */ +#define OPT_HEADER 0 +#define OPT_SECTION 1 +#define OPT_MAP 2 +#define OPT_LOAD 3 +#define OPT_DYSYMTAB 4 + +/* List of actions. */ +static struct objdump_private_option options[] = + { + { "header", 0 }, + { "section", 0 }, + { "map", 0 }, + { "load", 0 }, + { "dysymtab", 0 }, + { NULL, 0 } + }; + +/* Display help. */ + +static void +mach_o_help (FILE *stream) +{ + fprintf (stream, _("\ +For Mach-O files:\n\ + header Display the file header\n\ + section Display the segments and sections commands\n\ + map Display the section map\n\ + load Display the load commands\n\ + dysymtab Display the dynamic symbol table\n\ +")); +} + +/* Return TRUE if ABFD is handled. */ + +static int +mach_o_filter (bfd *abfd) +{ + return bfd_get_flavour (abfd) == bfd_target_mach_o_flavour; +} + +static const bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] = +{ + { "vax", BFD_MACH_O_CPU_TYPE_VAX }, + { "mc680x0", BFD_MACH_O_CPU_TYPE_MC680x0 }, + { "i386", BFD_MACH_O_CPU_TYPE_I386 }, + { "mips", BFD_MACH_O_CPU_TYPE_MIPS }, + { "mc98000", BFD_MACH_O_CPU_TYPE_MC98000 }, + { "hppa", BFD_MACH_O_CPU_TYPE_HPPA }, + { "arm", BFD_MACH_O_CPU_TYPE_ARM }, + { "mc88000", BFD_MACH_O_CPU_TYPE_MC88000 }, + { "sparc", BFD_MACH_O_CPU_TYPE_SPARC }, + { "i860", BFD_MACH_O_CPU_TYPE_I860 }, + { "alpha", BFD_MACH_O_CPU_TYPE_ALPHA }, + { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC }, + { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64 }, + { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64 }, + { NULL, 0} +}; + +static const bfd_mach_o_xlat_name bfd_mach_o_filetype_name[] = +{ + { "object", BFD_MACH_O_MH_OBJECT }, + { "execute", BFD_MACH_O_MH_EXECUTE }, + { "fvmlib", BFD_MACH_O_MH_FVMLIB }, + { "core", BFD_MACH_O_MH_CORE }, + { "preload", BFD_MACH_O_MH_PRELOAD }, + { "dylib", BFD_MACH_O_MH_DYLIB }, + { "dylinker", BFD_MACH_O_MH_DYLINKER }, + { "bundle", BFD_MACH_O_MH_BUNDLE }, + { "dylib_stub", BFD_MACH_O_MH_DYLIB_STUB }, + { "dym", BFD_MACH_O_MH_DSYM }, + { "kext_bundle", BFD_MACH_O_MH_KEXT_BUNDLE }, + { NULL, 0} +}; + +static const bfd_mach_o_xlat_name bfd_mach_o_header_flags_name[] = +{ + { "noundefs", BFD_MACH_O_MH_NOUNDEFS }, + { "incrlink", BFD_MACH_O_MH_INCRLINK }, + { "dyldlink", BFD_MACH_O_MH_DYLDLINK }, + { "bindatload", BFD_MACH_O_MH_BINDATLOAD }, + { "prebound", BFD_MACH_O_MH_PREBOUND }, + { "split_segs", BFD_MACH_O_MH_SPLIT_SEGS }, + { "lazy_init", BFD_MACH_O_MH_LAZY_INIT }, + { "twolevel", BFD_MACH_O_MH_TWOLEVEL }, + { "force_flat", BFD_MACH_O_MH_FORCE_FLAT }, + { "nomultidefs", BFD_MACH_O_MH_NOMULTIDEFS }, + { "nofixprebinding", BFD_MACH_O_MH_NOFIXPREBINDING }, + { "prebindable", BFD_MACH_O_MH_PREBINDABLE }, + { "allmodsbound", BFD_MACH_O_MH_ALLMODSBOUND }, + { "subsections_via_symbols", BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS }, + { "canonical", BFD_MACH_O_MH_CANONICAL }, + { "weak_defines", BFD_MACH_O_MH_WEAK_DEFINES }, + { "binds_to_weak", BFD_MACH_O_MH_BINDS_TO_WEAK }, + { "allow_stack_execution", BFD_MACH_O_MH_ALLOW_STACK_EXECUTION }, + { "root_safe", BFD_MACH_O_MH_ROOT_SAFE }, + { "setuid_safe", BFD_MACH_O_MH_SETUID_SAFE }, + { "no_reexported_dylibs", BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS }, + { "pie", BFD_MACH_O_MH_PIE }, + { NULL, 0} +}; + +static const bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] = +{ + { "segment", BFD_MACH_O_LC_SEGMENT}, + { "symtab", BFD_MACH_O_LC_SYMTAB}, + { "symseg", BFD_MACH_O_LC_SYMSEG}, + { "thread", BFD_MACH_O_LC_THREAD}, + { "unixthread", BFD_MACH_O_LC_UNIXTHREAD}, + { "loadfvmlib", BFD_MACH_O_LC_LOADFVMLIB}, + { "idfvmlib", BFD_MACH_O_LC_IDFVMLIB}, + { "ident", BFD_MACH_O_LC_IDENT}, + { "fvmfile", BFD_MACH_O_LC_FVMFILE}, + { "prepage", BFD_MACH_O_LC_PREPAGE}, + { "dysymtab", BFD_MACH_O_LC_DYSYMTAB}, + { "load_dylib", BFD_MACH_O_LC_LOAD_DYLIB}, + { "id_dylib", BFD_MACH_O_LC_ID_DYLIB}, + { "load_dylinker", BFD_MACH_O_LC_LOAD_DYLINKER}, + { "id_dylinker", BFD_MACH_O_LC_ID_DYLINKER}, + { "prebound_dylib", BFD_MACH_O_LC_PREBOUND_DYLIB}, + { "routines", BFD_MACH_O_LC_ROUTINES}, + { "sub_framework", BFD_MACH_O_LC_SUB_FRAMEWORK}, + { "sub_umbrella", BFD_MACH_O_LC_SUB_UMBRELLA}, + { "sub_client", BFD_MACH_O_LC_SUB_CLIENT}, + { "sub_library", BFD_MACH_O_LC_SUB_LIBRARY}, + { "twolevel_hints", BFD_MACH_O_LC_TWOLEVEL_HINTS}, + { "prebind_cksum", BFD_MACH_O_LC_PREBIND_CKSUM}, + { "load_weak_dylib", BFD_MACH_O_LC_LOAD_WEAK_DYLIB}, + { "segment_64", BFD_MACH_O_LC_SEGMENT_64}, + { "routines_64", BFD_MACH_O_LC_ROUTINES_64}, + { "uuid", BFD_MACH_O_LC_UUID}, + { "rpath", BFD_MACH_O_LC_RPATH}, + { "code_signature", BFD_MACH_O_LC_CODE_SIGNATURE}, + { "segment_split_info", BFD_MACH_O_LC_SEGMENT_SPLIT_INFO}, + { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB}, + { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB}, + { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO}, + { "dyld_info", BFD_MACH_O_LC_DYLD_INFO}, + { "load_upward_lib", BFD_MACH_O_LC_LOAD_UPWARD_DYLIB}, + { "version_min_macosx", BFD_MACH_O_LC_VERSION_MIN_MACOSX}, + { "version_min_iphoneos", BFD_MACH_O_LC_VERSION_MIN_IPHONEOS}, + { "function_starts", BFD_MACH_O_LC_FUNCTION_STARTS}, + { "dyld_environment", BFD_MACH_O_LC_DYLD_ENVIRONMENT}, + { NULL, 0} +}; + +static const bfd_mach_o_xlat_name bfd_mach_o_thread_x86_name[] = +{ + { "thread_state32", BFD_MACH_O_x86_THREAD_STATE32}, + { "float_state32", BFD_MACH_O_x86_FLOAT_STATE32}, + { "exception_state32", BFD_MACH_O_x86_EXCEPTION_STATE32}, + { "thread_state64", BFD_MACH_O_x86_THREAD_STATE64}, + { "float_state64", BFD_MACH_O_x86_FLOAT_STATE64}, + { "exception_state64", BFD_MACH_O_x86_EXCEPTION_STATE64}, + { "thread_state", BFD_MACH_O_x86_THREAD_STATE}, + { "float_state", BFD_MACH_O_x86_FLOAT_STATE}, + { "exception_state", BFD_MACH_O_x86_EXCEPTION_STATE}, + { "debug_state32", BFD_MACH_O_x86_DEBUG_STATE32}, + { "debug_state64", BFD_MACH_O_x86_DEBUG_STATE64}, + { "debug_state", BFD_MACH_O_x86_DEBUG_STATE}, + { "state_none", BFD_MACH_O_x86_THREAD_STATE_NONE}, + { NULL, 0 } +}; + +static void +bfd_mach_o_print_flags (const bfd_mach_o_xlat_name *table, + unsigned long val) +{ + int first = 1; + + for (; table->name; table++) + { + if (table->val & val) + { + if (!first) + printf ("+"); + printf ("%s", table->name); + val &= ~table->val; + first = 0; + } + } + if (val) + { + if (!first) + printf ("+"); + printf ("0x%lx", val); + return; + } + if (first) + printf ("-"); +} + +static const char * +bfd_mach_o_get_name_or_null (const bfd_mach_o_xlat_name *table, + unsigned long val) +{ + for (; table->name; table++) + if (table->val == val) + return table->name; + return NULL; +} + +static const char * +bfd_mach_o_get_name (const bfd_mach_o_xlat_name *table, unsigned long val) +{ + const char *res = bfd_mach_o_get_name_or_null (table, val); + + if (res == NULL) + return "*UNKNOWN*"; + else + return res; +} + +static void +dump_header (bfd *abfd) +{ + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + bfd_mach_o_header *h = &mdata->header; + + fputs (_("Mach-O header:\n"), stdout); + printf (_(" magic : %08lx\n"), h->magic); + printf (_(" cputype : %08lx (%s)\n"), h->cputype, + bfd_mach_o_get_name (bfd_mach_o_cpu_name, h->cputype)); + printf (_(" cpusubtype: %08lx\n"), h->cpusubtype); + printf (_(" filetype : %08lx (%s)\n"), + h->filetype, + bfd_mach_o_get_name (bfd_mach_o_filetype_name, h->filetype)); + printf (_(" ncmds : %08lx (%lu)\n"), h->ncmds, h->ncmds); + printf (_(" sizeofcmds: %08lx\n"), h->sizeofcmds); + printf (_(" flags : %08lx ("), h->flags); + bfd_mach_o_print_flags (bfd_mach_o_header_flags_name, h->flags); + fputs (_(")\n"), stdout); + printf (_(" reserved : %08x\n"), h->reserved); +} + +static void +dump_section_map (bfd *abfd) +{ + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + unsigned int i; + unsigned int sec_nbr = 0; + + fputs (_("Segments and Sections:\n"), stdout); + fputs (_(" #: Segment name Section name Address\n"), stdout); + + for (i = 0; i < mdata->header.ncmds; i++) + { + bfd_mach_o_segment_command *seg; + bfd_mach_o_section *sec; + + if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT + && mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64) + continue; + + seg = &mdata->commands[i].command.segment; + + printf ("[Segment %-16s ", seg->segname); + printf_vma (seg->vmaddr); + putchar ('-'); + printf_vma (seg->vmaddr + seg->vmsize - 1); + putchar (' '); + putchar (seg->initprot & BFD_MACH_O_PROT_READ ? 'r' : '-'); + putchar (seg->initprot & BFD_MACH_O_PROT_WRITE ? 'w' : '-'); + putchar (seg->initprot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-'); + printf ("]\n"); + + for (sec = seg->sect_head; sec != NULL; sec = sec->next) + { + printf ("%02u: %-16s %-16s ", ++sec_nbr, + sec->segname, sec->sectname); + printf_vma (sec->addr); + putchar (' '); + printf_vma (sec->size); + printf (" %08lx\n", sec->flags); + } + } +} + +static void +dump_section (bfd *abfd ATTRIBUTE_UNUSED, bfd_mach_o_section *sec) +{ + printf (" Section: %-16s %-16s (bfdname: %s)\n", + sec->sectname, sec->segname, sec->bfdsection->name); + printf (" addr: "); + printf_vma (sec->addr); + printf (" size: "); + printf_vma (sec->size); + printf (" offset: "); + printf_vma (sec->offset); + printf ("\n"); + printf (" align: %ld", sec->align); + printf (" nreloc: %lu reloff: ", sec->nreloc); + printf_vma (sec->reloff); + printf ("\n"); + printf (" flags: %08lx (type: %s", sec->flags, + bfd_mach_o_get_name (bfd_mach_o_section_type_name, + sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)); + printf (" attr: "); + bfd_mach_o_print_flags (bfd_mach_o_section_attribute_name, + sec->flags & BFD_MACH_O_SECTION_ATTRIBUTES_MASK); + printf (")\n"); + switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) + { + case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: + case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: + case BFD_MACH_O_S_SYMBOL_STUBS: + printf (" first indirect sym: %lu", sec->reserved1); + printf (" (%u entries)", + bfd_mach_o_section_get_nbr_indirect (abfd, sec)); + break; + default: + printf (" reserved1: 0x%lx", sec->reserved1); + break; + } + switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) + { + case BFD_MACH_O_S_SYMBOL_STUBS: + printf (" stub size: %lu", sec->reserved2); + break; + default: + printf (" reserved2: 0x%lx", sec->reserved2); + break; + } + printf (" reserved3: 0x%lx\n", sec->reserved3); +} + +static void +dump_segment (bfd *abfd ATTRIBUTE_UNUSED, bfd_mach_o_load_command *cmd) +{ + bfd_mach_o_segment_command *seg = &cmd->command.segment; + bfd_mach_o_section *sec; + + printf (" name: %s\n", *seg->segname ? seg->segname : "*none*"); + printf (" vmaddr: "); + printf_vma (seg->vmaddr); + printf (" vmsize: "); + printf_vma (seg->vmsize); + printf ("\n"); + printf (" fileoff: "); + printf_vma (seg->fileoff); + printf (" filesize: "); + printf_vma ((bfd_vma)seg->filesize); + printf (" endoff: "); + printf_vma ((bfd_vma)(seg->fileoff + seg->filesize)); + printf ("\n"); + printf (" nsects: %lu ", seg->nsects); + printf (" flags: %lx\n", seg->flags); + for (sec = seg->sect_head; sec != NULL; sec = sec->next) + dump_section (abfd, sec); +} + +static void +dump_dysymtab (bfd *abfd, bfd_mach_o_load_command *cmd, bfd_boolean verbose) +{ + bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab; + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + unsigned int i; + + printf (" local symbols: idx: %10lu num: %-8lu", + dysymtab->ilocalsym, dysymtab->nlocalsym); + printf (" (nxtidx: %lu)\n", + dysymtab->ilocalsym + dysymtab->nlocalsym); + printf (" external symbols: idx: %10lu num: %-8lu", + dysymtab->iextdefsym, dysymtab->nextdefsym); + printf (" (nxtidx: %lu)\n", + dysymtab->iextdefsym + dysymtab->nextdefsym); + printf (" undefined symbols: idx: %10lu num: %-8lu", + dysymtab->iundefsym, dysymtab->nundefsym); + printf (" (nxtidx: %lu)\n", + dysymtab->iundefsym + dysymtab->nundefsym); + printf (" table of content: off: 0x%08lx num: %-8lu", + dysymtab->tocoff, dysymtab->ntoc); + printf (" (endoff: 0x%08lx)\n", + dysymtab->tocoff + dysymtab->ntoc * BFD_MACH_O_TABLE_OF_CONTENT_SIZE); + printf (" module table: off: 0x%08lx num: %-8lu", + dysymtab->modtaboff, dysymtab->nmodtab); + printf (" (endoff: 0x%08lx)\n", + dysymtab->modtaboff + dysymtab->nmodtab + * (mdata->header.version == 2 ? + BFD_MACH_O_DYLIB_MODULE_64_SIZE : BFD_MACH_O_DYLIB_MODULE_SIZE)); + printf (" external reference table: off: 0x%08lx num: %-8lu", + dysymtab->extrefsymoff, dysymtab->nextrefsyms); + printf (" (endoff: 0x%08lx)\n", + dysymtab->extrefsymoff + + dysymtab->nextrefsyms * BFD_MACH_O_REFERENCE_SIZE); + printf (" indirect symbol table: off: 0x%08lx num: %-8lu", + dysymtab->indirectsymoff, dysymtab->nindirectsyms); + printf (" (endoff: 0x%08lx)\n", + dysymtab->indirectsymoff + + dysymtab->nindirectsyms * BFD_MACH_O_INDIRECT_SYMBOL_SIZE); + printf (" external relocation table: off: 0x%08lx num: %-8lu", + dysymtab->extreloff, dysymtab->nextrel); + printf (" (endoff: 0x%08lx)\n", + dysymtab->extreloff + dysymtab->nextrel * BFD_MACH_O_RELENT_SIZE); + printf (" local relocation table: off: 0x%08lx num: %-8lu", + dysymtab->locreloff, dysymtab->nlocrel); + printf (" (endoff: 0x%08lx)\n", + dysymtab->locreloff + dysymtab->nlocrel * BFD_MACH_O_RELENT_SIZE); + + if (!verbose) + return; + + if (dysymtab->ntoc > 0 + || dysymtab->nindirectsyms > 0 + || dysymtab->nextrefsyms > 0) + { + /* Try to read the symbols to display the toc or indirect symbols. */ + bfd_mach_o_read_symtab_symbols (abfd); + } + else if (dysymtab->nmodtab > 0) + { + /* Try to read the strtab to display modules name. */ + bfd_mach_o_read_symtab_strtab (abfd); + } + + for (i = 0; i < dysymtab->nmodtab; i++) + { + bfd_mach_o_dylib_module *module = &dysymtab->dylib_module[i]; + printf (" module %u:\n", i); + printf (" name: %lu", module->module_name_idx); + if (mdata->symtab && mdata->symtab->strtab) + printf (": %s", + mdata->symtab->strtab + module->module_name_idx); + printf ("\n"); + printf (" extdefsym: idx: %8lu num: %lu\n", + module->iextdefsym, module->nextdefsym); + printf (" refsym: idx: %8lu num: %lu\n", + module->irefsym, module->nrefsym); + printf (" localsym: idx: %8lu num: %lu\n", + module->ilocalsym, module->nlocalsym); + printf (" extrel: idx: %8lu num: %lu\n", + module->iextrel, module->nextrel); + printf (" init: idx: %8u num: %u\n", + module->iinit, module->ninit); + printf (" term: idx: %8u num: %u\n", + module->iterm, module->nterm); + printf (" objc_module_info: addr: "); + printf_vma (module->objc_module_info_addr); + printf (" size: %lu\n", module->objc_module_info_size); + } + + if (dysymtab->ntoc > 0) + { + bfd_mach_o_symtab_command *symtab = mdata->symtab; + + printf (" table of content: (symbol/module)\n"); + for (i = 0; i < dysymtab->ntoc; i++) + { + bfd_mach_o_dylib_table_of_content *toc = &dysymtab->dylib_toc[i]; + + printf (" %4u: ", i); + if (symtab && symtab->symbols && toc->symbol_index < symtab->nsyms) + { + const char *name = symtab->symbols[toc->symbol_index].symbol.name; + printf ("%s (%lu)", name ? name : "*invalid*", + toc->symbol_index); + } + else + printf ("%lu", toc->symbol_index); + + printf (" / "); + if (symtab && symtab->strtab + && toc->module_index < dysymtab->nmodtab) + { + bfd_mach_o_dylib_module *mod; + mod = &dysymtab->dylib_module[toc->module_index]; + printf ("%s (%lu)", + symtab->strtab + mod->module_name_idx, + toc->module_index); + } + else + printf ("%lu", toc->module_index); + + printf ("\n"); + } + } + + if (dysymtab->nindirectsyms != 0) + { + printf (" indirect symbols:\n"); + + for (i = 0; i < mdata->nsects; i++) + { + bfd_mach_o_section *sec = mdata->sections[i]; + unsigned int j, first, last; + bfd_mach_o_symtab_command *symtab = mdata->symtab; + bfd_vma addr; + bfd_vma entry_size; + + switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK) + { + case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS: + case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS: + case BFD_MACH_O_S_SYMBOL_STUBS: + first = sec->reserved1; + last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec); + addr = sec->addr; + entry_size = bfd_mach_o_section_get_entry_size (abfd, sec); + printf (" for section %s.%s:\n", + sec->segname, sec->sectname); + for (j = first; j < last; j++) + { + unsigned int isym = dysymtab->indirect_syms[j]; + + printf (" "); + printf_vma (addr); + printf (" %5u: 0x%08x", j, isym); + if (isym & BFD_MACH_O_INDIRECT_SYMBOL_LOCAL) + printf (" LOCAL"); + if (isym & BFD_MACH_O_INDIRECT_SYMBOL_ABS) + printf (" ABSOLUTE"); + if (symtab && symtab->symbols + && isym < symtab->nsyms + && symtab->symbols[isym].symbol.name) + printf (" %s", symtab->symbols[isym].symbol.name); + printf ("\n"); + addr += entry_size; + } + break; + default: + break; + } + } + } + if (dysymtab->nextrefsyms > 0) + { + bfd_mach_o_symtab_command *symtab = mdata->symtab; + + printf (" external reference table: (symbol flags)\n"); + for (i = 0; i < dysymtab->nextrefsyms; i++) + { + bfd_mach_o_dylib_reference *ref = &dysymtab->ext_refs[i]; + + printf (" %4u: %5lu 0x%02lx", i, ref->isym, ref->flags); + if (symtab && symtab->symbols + && ref->isym < symtab->nsyms + && symtab->symbols[ref->isym].symbol.name) + printf (" %s", symtab->symbols[ref->isym].symbol.name); + printf ("\n"); + } + } + +} + +static void +dump_dyld_info (bfd *abfd ATTRIBUTE_UNUSED, bfd_mach_o_load_command *cmd) +{ + bfd_mach_o_dyld_info_command *info = &cmd->command.dyld_info; + + printf (" rebase: off: 0x%08x size: %-8u\n", + info->rebase_off, info->rebase_size); + printf (" bind: off: 0x%08x size: %-8u\n", + info->bind_off, info->bind_size); + printf (" weak bind: off: 0x%08x size: %-8u\n", + info->weak_bind_off, info->weak_bind_size); + printf (" lazy bind: off: 0x%08x size: %-8u\n", + info->lazy_bind_off, info->lazy_bind_size); + printf (" export: off: 0x%08x size: %-8u\n", + info->export_off, info->export_size); +} + +static void +dump_thread (bfd *abfd, bfd_mach_o_load_command *cmd) +{ + bfd_mach_o_thread_command *thread = &cmd->command.thread; + unsigned int j; + bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd); + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + + printf (" nflavours: %lu\n", thread->nflavours); + for (j = 0; j < thread->nflavours; j++) + { + bfd_mach_o_thread_flavour *flavour = &thread->flavours[j]; + const bfd_mach_o_xlat_name *name_table; + + printf (" %2u: flavour: 0x%08lx", j, flavour->flavour); + switch (mdata->header.cputype) + { + case BFD_MACH_O_CPU_TYPE_I386: + case BFD_MACH_O_CPU_TYPE_X86_64: + name_table = bfd_mach_o_thread_x86_name; + break; + default: + name_table = NULL; + break; + } + if (name_table != NULL) + printf (": %s", bfd_mach_o_get_name (name_table, flavour->flavour)); + putchar ('\n'); + + printf (" offset: 0x%08lx size: 0x%08lx\n", + flavour->offset, flavour->size); + if (bed->_bfd_mach_o_print_thread) + { + char *buf = xmalloc (flavour->size); + + if (buf + && bfd_seek (abfd, flavour->offset, SEEK_SET) == 0 + && (bfd_bread (buf, flavour->size, abfd) + == flavour->size)) + (*bed->_bfd_mach_o_print_thread)(abfd, flavour, stdout, buf); + free (buf); + } + } +} + +static void +dump_load_command (bfd *abfd, bfd_mach_o_load_command *cmd, + bfd_boolean verbose) +{ + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + const char *cmd_name; + + cmd_name = bfd_mach_o_get_name_or_null + (bfd_mach_o_load_command_name, cmd->type); + printf ("Load command "); + if (cmd_name == NULL) + printf ("0x%02x:", cmd->type); + else + printf ("%s:", cmd_name); + + switch (cmd->type) + { + case BFD_MACH_O_LC_SEGMENT: + case BFD_MACH_O_LC_SEGMENT_64: + dump_segment (abfd, cmd); + break; + case BFD_MACH_O_LC_UUID: + { + bfd_mach_o_uuid_command *uuid = &cmd->command.uuid; + unsigned int j; + + for (j = 0; j < sizeof (uuid->uuid); j ++) + printf (" %02x", uuid->uuid[j]); + putchar ('\n'); + } + break; + case BFD_MACH_O_LC_LOAD_DYLIB: + case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: + case BFD_MACH_O_LC_REEXPORT_DYLIB: + case BFD_MACH_O_LC_ID_DYLIB: + case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB: + { + bfd_mach_o_dylib_command *dylib = &cmd->command.dylib; + printf (" %s\n", dylib->name_str); + printf (" time stamp: 0x%08lx\n", + dylib->timestamp); + printf (" current version: 0x%08lx\n", + dylib->current_version); + printf (" comptibility version: 0x%08lx\n", + dylib->compatibility_version); + break; + } + case BFD_MACH_O_LC_LOAD_DYLINKER: + case BFD_MACH_O_LC_ID_DYLINKER: + printf (" %s\n", cmd->command.dylinker.name_str); + break; + case BFD_MACH_O_LC_SYMTAB: + { + bfd_mach_o_symtab_command *symtab = &cmd->command.symtab; + printf ("\n" + " symoff: 0x%08x nsyms: %8u (endoff: 0x%08x)\n", + symtab->symoff, symtab->nsyms, + symtab->symoff + symtab->nsyms + * (mdata->header.version == 2 + ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE)); + printf (" stroff: 0x%08x strsize: %8u (endoff: 0x%08x)\n", + symtab->stroff, symtab->strsize, + symtab->stroff + symtab->strsize); + break; + } + case BFD_MACH_O_LC_DYSYMTAB: + putchar ('\n'); + dump_dysymtab (abfd, cmd, verbose); + break; + case BFD_MACH_O_LC_CODE_SIGNATURE: + case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO: + case BFD_MACH_O_LC_FUNCTION_STARTS: + { + bfd_mach_o_linkedit_command *linkedit = &cmd->command.linkedit; + printf + ("\n" + " dataoff: 0x%08lx datasize: 0x%08lx (endoff: 0x%08lx)\n", + linkedit->dataoff, linkedit->datasize, + linkedit->dataoff + linkedit->datasize); + break; + } + case BFD_MACH_O_LC_SUB_FRAMEWORK: + case BFD_MACH_O_LC_SUB_UMBRELLA: + case BFD_MACH_O_LC_SUB_LIBRARY: + case BFD_MACH_O_LC_SUB_CLIENT: + case BFD_MACH_O_LC_RPATH: + { + bfd_mach_o_str_command *str = &cmd->command.str; + printf (" %s\n", str->str); + break; + } + case BFD_MACH_O_LC_THREAD: + case BFD_MACH_O_LC_UNIXTHREAD: + dump_thread (abfd, cmd); + break; + case BFD_MACH_O_LC_DYLD_INFO: + putchar ('\n'); + dump_dyld_info (abfd, cmd); + break; + case BFD_MACH_O_LC_VERSION_MIN_MACOSX: + case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS: + { + bfd_mach_o_version_min_command *ver = &cmd->command.version_min; + + printf (" %u.%u.%u\n", ver->rel, ver->maj, ver->min); + } + break; + default: + putchar ('\n'); + printf (" offset: 0x%08lx\n", (unsigned long)cmd->offset); + printf (" size: 0x%08lx\n", (unsigned long)cmd->len); + break; + } + putchar ('\n'); +} + +static void +dump_load_commands (bfd *abfd, unsigned int cmd32, unsigned int cmd64) +{ + bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd); + unsigned int i; + + for (i = 0; i < mdata->header.ncmds; i++) + { + bfd_mach_o_load_command *cmd = &mdata->commands[i]; + + if (cmd32 == 0) + dump_load_command (abfd, cmd, FALSE); + else if (cmd->type == cmd32 || cmd->type == cmd64) + dump_load_command (abfd, cmd, TRUE); + } +} + +/* Dump ABFD (according to the options[] array). */ + +static void +mach_o_dump (bfd *abfd) +{ + if (options[OPT_HEADER].selected) + dump_header (abfd); + if (options[OPT_SECTION].selected) + dump_load_commands (abfd, BFD_MACH_O_LC_SEGMENT, BFD_MACH_O_LC_SEGMENT_64); + if (options[OPT_MAP].selected) + dump_section_map (abfd); + if (options[OPT_LOAD].selected) + dump_load_commands (abfd, 0, 0); + if (options[OPT_DYSYMTAB].selected) + dump_load_commands (abfd, BFD_MACH_O_LC_DYSYMTAB, 0); +} + +/* Vector for Mach-O. */ + +const struct objdump_private_desc objdump_private_desc_mach_o = + { + mach_o_help, + mach_o_filter, + mach_o_dump, + options + }; |