#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_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_get_section_contents_in_window_with_mode _bfd_generic_get_section_contents_in_window_with_mode
#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 SECTION_TYPE 0x000000ff
#define SECTION_ATTRIBUTES 0xffffff00
#define SECTION_ATTRIBUTES_USR 0xff000000
#define S_ATTR_PURE_INSTRUCTIONS 0x80000000
#define SECTION_ATTRIBUTES_SYS 0x00ffff00
#define S_ATTR_SOME_INSTRUCTIONS 0x00000400
#define S_ATTR_EXT_RELOC 0x00000200
#define S_ATTR_LOC_RELOC 0x00000100
#define N_STAB 0xe0
#define N_TYPE 0x1e
#define N_EXT 0x01
#define N_UNDF 0x0
#define N_ABS 0x2
#define N_TEXT 0x4
#define N_DATA 0x6
#define N_BSS 0x8
#define N_SECT 0xe
#define N_INDR 0xa
unsigned int
bfd_mach_o_version (abfd)
bfd *abfd;
{
bfd_mach_o_data_struct *mdata = NULL;
BFD_ASSERT (bfd_mach_o_valid (abfd));
mdata = abfd->tdata.mach_o_data;
return mdata->header.version;
}
bfd_boolean
bfd_mach_o_in_shared_cached_memory (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = NULL;
BFD_ASSERT (bfd_mach_o_valid (abfd));
mdata = abfd->tdata.mach_o_data;
if (mdata->header.flags & 0x80000000)
return 1;
return 0;
}
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;
}
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;
}
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;
}
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;
}
#define BFD_GETB16(addr) ((addr[0] << 8) | addr[1])
#define BFD_GETB32(addr) ((((((unsigned long) addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3])
#define BFD_GETB64(addr) ((((((((((unsigned long long) addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3]) << 8 | addr[4]) << 8 | addr[5]) << 8 | addr[6]) << 8 | addr[7])
#define BFD_GETL16(addr) ((addr[1] << 8) | addr[0])
#define BFD_GETL32(addr) ((((((unsigned long) addr[3] << 8) | addr[2]) << 8) | addr[1]) << 8 | addr[0])
#define BFD_GETL64(addr) ((((((((((unsigned long long) addr[7] << 8) | addr[6]) << 8) | addr[5]) << 8 | addr[4]) << 8 | addr[3]) << 8 | addr[2]) << 8 | addr[1]) << 8 | addr[0])
unsigned char macosx_symbol_types[256];
static unsigned char
bfd_mach_o_symbol_type_base (unsigned char macho_type)
{
unsigned char mtype = macho_type;
unsigned char ntype = 0;
if (macho_type & BFD_MACH_O_N_STAB)
{
return macho_type;
}
if (mtype & BFD_MACH_O_N_PEXT)
{
mtype &= ~BFD_MACH_O_N_PEXT;
ntype |= N_EXT;
}
if (mtype & BFD_MACH_O_N_EXT)
{
mtype &= ~BFD_MACH_O_N_EXT;
ntype |= N_EXT;
}
switch (mtype & BFD_MACH_O_N_TYPE)
{
case BFD_MACH_O_N_SECT:
break;
case BFD_MACH_O_N_PBUD:
ntype |= N_UNDF;
break;
case BFD_MACH_O_N_ABS:
ntype |= N_ABS;
break;
case BFD_MACH_O_N_UNDF:
ntype |= N_UNDF;
break;
case BFD_MACH_O_N_INDR:
return macho_type;
default:
return macho_type;
}
mtype &= ~BFD_MACH_O_N_TYPE;
BFD_ASSERT (mtype == 0);
return ntype;
}
static void
bfd_mach_o_symbol_types_init (void)
{
unsigned int i;
for (i = 0; i < 256; i++)
{
macosx_symbol_types[i] = bfd_mach_o_symbol_type_base (i);
}
}
static unsigned char
bfd_mach_o_symbol_type (bfd *abfd, unsigned char macho_type, unsigned char macho_sect)
{
static int init = 0;
if (! init)
bfd_mach_o_symbol_types_init ();
init = 1;
unsigned char ntype = macosx_symbol_types[macho_type];
if ((macho_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
{
if (macho_sect == 1)
{
ntype |= N_TEXT;
}
else if ((macho_sect > 0)
&& (macho_sect <= abfd->tdata.mach_o_data->nsects))
{
const bfd_mach_o_section *sect =
abfd->tdata.mach_o_data->sections[macho_sect - 1];
if (sect == NULL)
{
}
else if ((sect->segname != NULL)
&& (strcmp (sect->segname, "__DATA") == 0))
{
if ((sect->sectname != NULL)
&& (strcmp (sect->sectname, "__bss") == 0))
ntype |= N_BSS;
else
ntype |= N_DATA;
}
else if ((sect->segname != NULL)
&& (strcmp (sect->segname, "__TEXT") == 0))
{
ntype |= N_TEXT;
}
else
{
ntype |= N_DATA;
}
}
else
{
ntype |= N_DATA;
}
}
return ntype;
}
static void
bfd_mach_o_get_symbol_info (bfd *abfd,
asymbol *symbol,
symbol_info *ret)
{
unsigned int type, section, desc;
type = (symbol->udata.i >> 24) & 0xff;
section = (symbol->udata.i >> 16) & 0xff;
desc = (symbol->udata.i >> 0) & 0xffff;
bfd_symbol_info (symbol, ret);
if (type & BFD_MACH_O_N_STAB)
{
int type_code;
static char buf[10];
type_code = bfd_mach_o_symbol_type (abfd, type, section);
const char *stab_name = bfd_get_stab_name (type_code);
if (stab_name == NULL)
{
sprintf (buf, "(%d)", type_code);
stab_name = buf;
}
ret->type = '-';
ret->stab_type = type_code;
ret->stab_other = 0;
ret->stab_desc = desc;
ret->stab_name = stab_name;
}
}
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;
*subtype = bfd_mach_i386_i386;
break;
case BFD_MACH_O_CPU_TYPE_X86_64:
*type = bfd_arch_i386;
*subtype = bfd_mach_x86_64;
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;
if (msubtype == BFD_MACH_O_CPU_SUBTYPE_ARM_4T)
*subtype = bfd_mach_arm_4T;
else if (msubtype == BFD_MACH_O_CPU_SUBTYPE_ARM_6)
*subtype = bfd_mach_arm_6;
break;
case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break;
case BFD_MACH_O_CPU_TYPE_SPARC:
*type = bfd_arch_sparc;
*subtype = bfd_mach_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;
*subtype = bfd_mach_ppc;
break;
case BFD_MACH_O_CPU_TYPE_POWERPC_64:
*type = bfd_arch_powerpc;
*subtype = bfd_mach_ppc64;
break;
default:
*type = bfd_arch_unknown;
break;
}
}
static int
bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
{
unsigned char buf[32];
unsigned int size;
size = (header->version == 2) ? 32 : 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);
if (header->version == 2)
bfd_h_put_32 (abfd, header->reserved, buf + 28);
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bwrite ((PTR) buf, size, abfd) != size)
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_32 (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_section_64 (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset)
{
unsigned char buf[80];
memcpy (buf, section->sectname, 16);
memcpy (buf + 16, section->segname, 16);
bfd_h_put_64 (abfd, section->addr, buf + 32);
bfd_h_put_64 (abfd, section->size, buf + 40);
bfd_h_put_32 (abfd, section->offset, buf + 48);
bfd_h_put_32 (abfd, section->align, buf + 52);
bfd_h_put_32 (abfd, section->reloff, buf + 56);
bfd_h_put_32 (abfd, section->nreloc, buf + 60);
bfd_h_put_32 (abfd, section->flags, buf + 64);
bfd_h_put_32 (abfd, section->reserved1, buf + 68);
bfd_h_put_32 (abfd, section->reserved2, buf + 72);
bfd_h_put_32 (abfd, section->reserved3, buf + 76);
bfd_seek (abfd, offset, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 80, abfd) != 80)
return -1;
return 0;
}
static int
bfd_mach_o_scan_write_section (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset,
unsigned int wide)
{
if (wide)
return bfd_mach_o_scan_write_section_64 (abfd, section, offset);
else
return bfd_mach_o_scan_write_section_32 (abfd, section, offset);
}
static int
bfd_mach_o_scan_write_segment (bfd *abfd,
bfd_mach_o_load_command *command,
unsigned int wide)
{
unsigned char buf[64];
bfd_mach_o_segment_command *seg = &command->command.segment;
unsigned long i;
if (wide)
{
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
memcpy (buf, seg->segname, 16);
bfd_h_put_64 (abfd, seg->vmaddr, buf + 16);
bfd_h_put_64 (abfd, seg->vmsize, buf + 24);
bfd_h_put_64 (abfd, seg->fileoff, buf + 32);
bfd_h_put_64 (abfd, seg->filesize, buf + 40);
bfd_h_put_32 (abfd, seg->maxprot, buf + 48);
bfd_h_put_32 (abfd, seg->initprot, buf + 52);
bfd_h_put_32 (abfd, seg->nsects, buf + 56);
bfd_h_put_32 (abfd, seg->flags, buf + 60);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 64, abfd) != 64)
return -1;
}
else
{
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, seg->maxprot, buf + 32);
bfd_h_put_32 (abfd, 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 thiswrite = nbytes;
if (thiswrite > 1024)
thiswrite = 1024;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bread ((PTR) buf, thiswrite, abfd) != thiswrite)
return -1;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bwrite ((PTR) buf, thiswrite, abfd) != thiswrite)
return -1;
nbytes -= thiswrite;
curoff += thiswrite;
}
}
for (i = 0; i < seg->nsects; i++)
{
bfd_vma segoff;
if (wide)
segoff = command->offset + 64 + 8 + (i * 80);
else
segoff = command->offset + 48 + 8 + (i * 68);
if (bfd_mach_o_scan_write_section
(abfd, &seg->sections[i], segoff, wide) != 0)
return -1;
}
return 0;
}
static int
bfd_mach_o_scan_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_scan_write_segment (abfd, command, 0);
}
static int
bfd_mach_o_scan_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_scan_write_segment (abfd, command, 1);
}
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];
#if 0
if (s->flags & BSF_GLOBAL)
ntype |= N_EXT;
if (s->flags & BSF_DEBUGGING)
ntype |= N_STAB;
if (s->section == bfd_und_section_ptr)
ntype |= N_UNDF;
else if (s->section == bfd_abs_section_ptr)
ntype |= N_ABS;
else
ntype |= N_SECT;
#endif
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;
for (s = abfd->sections; s != (asection *) NULL; s = s->next)
;
#if 0
for (i = 0; i < mdata->header.ncmds; i++)
{
bfd_mach_o_load_command *cur = &mdata->commands[i];
if (cur->type != BFD_MACH_O_LC_SEGMENT)
break;
{
bfd_mach_o_segment_command *seg = &cur->command.segment;
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 FALSE;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread)
return FALSE;
nbytes -= thisread;
curoff += thisread;
}
}
}
#endif
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_32 (abfd, cur) != 0)
return FALSE;
break;
case BFD_MACH_O_LC_SEGMENT_64:
if (bfd_mach_o_scan_write_segment_64 (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_REEXPORT_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:
case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
case BFD_MACH_O_LC_ENCRYPTION_INFO:
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;
}
static asymbol *
bfd_mach_o_make_empty_symbol (bfd *abfd)
{
asymbol *new;
new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
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[32];
unsigned int size;
bfd_vma (* get32) PARAMS ((const void *)) = NULL;
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, 4, abfd) != 4)
return -1;
if (bfd_getb32 (buf) == 0xfeedface)
{
header->byteorder = BFD_ENDIAN_BIG;
header->magic = 0xfeedface;
header->version = 1;
get32 = bfd_getb32;
}
else if (bfd_getl32 (buf) == 0xfeedface)
{
header->byteorder = BFD_ENDIAN_LITTLE;
header->magic = 0xfeedface;
header->version = 1;
get32 = bfd_getl32;
}
else if (bfd_getb32 (buf) == 0xfeedfacf)
{
header->byteorder = BFD_ENDIAN_BIG;
header->magic = 0xfeedfacf;
header->version = 2;
get32 = bfd_getb32;
}
else if (bfd_getl32 (buf) == 0xfeedfacf)
{
header->byteorder = BFD_ENDIAN_LITTLE;
header->magic = 0xfeedfacf;
header->version = 2;
get32 = bfd_getl32;
}
else
{
header->byteorder = BFD_ENDIAN_UNKNOWN;
return -1;
}
size = (header->version == 2) ? 32 : 28;
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, size, abfd) != size)
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);
if (header->version == 2)
header->reserved = (*get32) (buf + 28);
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 = (char *) 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;
bfdsec->segment_mark = 0;
if (section->flags & (BFD_MACH_O_S_ZEROFILL | BFD_MACH_O_S_GB_ZEROFILL))
bfdsec->flags = SEC_ALLOC;
else if (section->flags & BFD_MACH_O_S_ATTR_DEBUG || strcmp (section->segname, "__DWARF") == 0)
bfdsec->flags = SEC_HAS_CONTENTS;
else
bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
if (strcmp (section->segname, "__TEXT") == 0
&& (section->sectname[0] == '\0' || strcmp (section->sectname, "__text") == 0))
bfdsec->flags |= SEC_READONLY;
return bfdsec;
}
static int
bfd_mach_o_scan_read_section_32 (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->reserved3 = 0;
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
if (section->bfdsection == NULL)
return -1;
return 0;
}
static int
bfd_mach_o_scan_read_section_64 (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset)
{
unsigned char buf[80];
bfd_seek (abfd, offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 80, abfd) != 80)
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_64 (abfd, buf + 32);
section->size = bfd_h_get_64 (abfd, buf + 40);
section->offset = bfd_h_get_32 (abfd, buf + 48);
section->align = bfd_h_get_32 (abfd, buf + 52);
section->reloff = bfd_h_get_32 (abfd, buf + 56);
section->nreloc = bfd_h_get_32 (abfd, buf + 60);
section->flags = bfd_h_get_32 (abfd, buf + 64);
section->reserved1 = bfd_h_get_32 (abfd, buf + 68);
section->reserved2 = bfd_h_get_32 (abfd, buf + 72);
section->reserved3 = bfd_h_get_32 (abfd, buf + 76);
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
if (section->bfdsection == NULL)
return -1;
return 0;
}
#define ARM_THREAD_STATE_STR "ARM_THREAD_STATE"
#define ARM_VFP_STATE_STR "ARM_VFP_STATE"
#define ARM_EXCEPTION_STATE_STR "ARM_EXCEPTION_STATE"
static const char *
bfd_mach_o_arm_flavour_string (unsigned int flavour)
{
switch ((int) flavour)
{
case BFD_MACH_O_ARM_THREAD_STATE: return ARM_THREAD_STATE_STR;
case BFD_MACH_O_ARM_VFP_STATE: return ARM_VFP_STATE_STR;
case BFD_MACH_O_ARM_EXCEPTION_STATE: return ARM_EXCEPTION_STATE_STR;
default: return "UNKNOWN";
}
}
static unsigned int
bfd_mach_o_arm_flavour_from_string(const char* s)
{
if (strcmp(s, ARM_THREAD_STATE_STR) == 0)
return BFD_MACH_O_ARM_THREAD_STATE;
else if (strcmp(s, ARM_VFP_STATE_STR) == 0)
return BFD_MACH_O_ARM_VFP_STATE;
else if (strcmp(s, ARM_EXCEPTION_STATE_STR) == 0)
return BFD_MACH_O_ARM_EXCEPTION_STATE;
return 0;
}
static int
bfd_mach_o_scan_read_section (bfd *abfd,
bfd_mach_o_section *section,
bfd_vma offset,
unsigned int wide)
{
if (wide)
return bfd_mach_o_scan_read_section_64 (abfd, section, offset);
else
return bfd_mach_o_scan_read_section_32 (abfd, section, offset);
}
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;
unsigned int wide = (mdata->header.version == 2);
unsigned int symwidth = wide ? 16 : 12;
bfd_vma symoff = sym->symoff + (i * symwidth);
unsigned char buf[16];
unsigned char type = -1;
unsigned char section = -1;
short desc = -1;
symvalue 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, symwidth, abfd) != symwidth)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n",
symwidth, (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);
if (wide)
value = bfd_h_get_64 (abfd, buf + 8);
else
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]->bfdsection;
s->value = s->value - mdata->sections[section]->addr;
}
else
{
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);
}
#define i386_THREAD_STATE_STR "i386_THREAD_STATE"
#define i386_FLOAT_STATE_STR "i386_FLOAT_STATE"
#define i386_EXCEPTION_STATE_STR "i386_EXCEPTION_STATE"
#define x86_THREAD_STATE64_STR "x86_THREAD_STATE64"
#define x86_FLOAT_STATE64_STR "x86_FLOAT_STATE64"
#define x86_EXCEPTION_STATE64_STR "x86_EXCEPTION_STATE64"
#define x86_THREAD_STATE_STR "x86_THREAD_STATE"
#define x86_FLOAT_STATE_STR "x86_FLOAT_STATE"
#define x86_EXCEPTION_STATE_STR "x86_EXCEPTION_STATE"
static const char *
bfd_mach_o_i386_flavour_string (unsigned int flavour)
{
switch ((int) flavour)
{
case BFD_MACH_O_i386_THREAD_STATE: return i386_THREAD_STATE_STR;
case BFD_MACH_O_i386_FLOAT_STATE: return i386_FLOAT_STATE_STR;
case BFD_MACH_O_i386_EXCEPTION_STATE: return i386_EXCEPTION_STATE_STR;
case BFD_MACH_O_x86_THREAD_STATE64: return x86_THREAD_STATE64_STR;
case BFD_MACH_O_x86_FLOAT_STATE64: return x86_FLOAT_STATE64_STR;
case BFD_MACH_O_x86_EXCEPTION_STATE64: return x86_EXCEPTION_STATE64_STR;
case BFD_MACH_O_x86_THREAD_STATE: return x86_THREAD_STATE_STR;
case BFD_MACH_O_x86_FLOAT_STATE: return x86_FLOAT_STATE_STR;
case BFD_MACH_O_x86_EXCEPTION_STATE: return x86_EXCEPTION_STATE_STR;
case BFD_MACH_O_i386_THREAD_STATE_NONE: return "THREAD_STATE_NONE";
default: return "UNKNOWN";
}
}
static unsigned int
bfd_mach_o_i386_flavour_from_string (const char * s)
{
if (strcmp(s, i386_THREAD_STATE_STR) == 0)
return BFD_MACH_O_i386_THREAD_STATE;
else if (strcmp(s, i386_FLOAT_STATE_STR) == 0)
return BFD_MACH_O_i386_FLOAT_STATE;
else if (strcmp(s, i386_EXCEPTION_STATE_STR) == 0)
return BFD_MACH_O_i386_EXCEPTION_STATE;
else if (strcmp(s, x86_THREAD_STATE64_STR) == 0)
return BFD_MACH_O_x86_THREAD_STATE64;
else if (strcmp(s, x86_FLOAT_STATE64_STR) == 0)
return BFD_MACH_O_x86_FLOAT_STATE64;
else if (strcmp(s, x86_EXCEPTION_STATE64_STR) == 0)
return BFD_MACH_O_x86_EXCEPTION_STATE64;
else if (strcmp(s, x86_THREAD_STATE_STR) == 0)
return BFD_MACH_O_x86_THREAD_STATE;
else if (strcmp(s, x86_FLOAT_STATE_STR) == 0)
return BFD_MACH_O_x86_FLOAT_STATE;
else if (strcmp(s, x86_EXCEPTION_STATE_STR) == 0)
return BFD_MACH_O_x86_EXCEPTION_STATE;
return 0;
}
#define PPC_THREAD_STATE_STR "PPC_THREAD_STATE"
#define PPC_FLOAT_STATE_STR "PPC_FLOAT_STATE"
#define PPC_EXCEPTION_STATE_STR "PPC_EXCEPTION_STATE"
#define PPC_VECTOR_STATE_STR "PPC_VECTOR_STATE"
#define PPC_THREAD_STATE_64_STR "PPC_THREAD_STATE_64"
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_STR;
case BFD_MACH_O_PPC_FLOAT_STATE: return PPC_FLOAT_STATE_STR;
case BFD_MACH_O_PPC_EXCEPTION_STATE: return PPC_EXCEPTION_STATE_STR;
case BFD_MACH_O_PPC_VECTOR_STATE: return PPC_VECTOR_STATE_STR;
case BFD_MACH_O_PPC_THREAD_STATE_64: return PPC_THREAD_STATE_64_STR;
default: return "UNKNOWN";
}
}
static unsigned int
bfd_mach_o_ppc_flavour_from_string (const char* s)
{
if (strcmp(s, PPC_THREAD_STATE_STR) == 0)
return BFD_MACH_O_PPC_THREAD_STATE;
else if (strcmp(s, PPC_FLOAT_STATE_STR) == 0)
return BFD_MACH_O_PPC_FLOAT_STATE;
else if (strcmp(s, PPC_EXCEPTION_STATE_STR) == 0)
return BFD_MACH_O_PPC_EXCEPTION_STATE;
else if (strcmp(s, PPC_VECTOR_STATE_STR) == 0)
return BFD_MACH_O_PPC_VECTOR_STATE;
else if (strcmp(s, PPC_THREAD_STATE_64_STR) == 0)
return BFD_MACH_O_PPC_THREAD_STATE_64;
return 0;
}
unsigned int
bfd_mach_o_flavour_from_string(unsigned long cputype, const char* s)
{
unsigned int flavour = 0;
if (s)
{
switch (cputype)
{
case BFD_MACH_O_CPU_TYPE_POWERPC:
case BFD_MACH_O_CPU_TYPE_POWERPC_64:
flavour = bfd_mach_o_ppc_flavour_from_string (s);
break;
case BFD_MACH_O_CPU_TYPE_I386:
case BFD_MACH_O_CPU_TYPE_X86_64:
flavour = bfd_mach_o_i386_flavour_from_string (s);
break;
case BFD_MACH_O_CPU_TYPE_ARM:
flavour = bfd_mach_o_arm_flavour_from_string (s);
break;
default:
break;
}
}
return flavour;
}
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 = (char *) 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_REEXPORT_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_REEXPORT_DYLIB)
prefix = "LC_REEXPORT_DYLIB";
else if (command->type == BFD_MACH_O_LC_ID_DYLIB)
prefix = "LC_ID_DYLIB";
else
abort ();
sname = (char *) 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_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_mach_o_thread_flavour *)
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:
case BFD_MACH_O_CPU_TYPE_POWERPC_64:
flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
break;
case BFD_MACH_O_CPU_TYPE_I386:
case BFD_MACH_O_CPU_TYPE_X86_64:
flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
break;
case BFD_MACH_O_CPU_TYPE_ARM:
flavourstr = bfd_mach_o_arm_flavour_string (cmd->flavours[i].flavour);
break;
default:
flavourstr = "UNKNOWN_ARCHITECTURE";
break;
}
snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
sname = (char *) 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];
const char *prefix;
char *sname;
struct bfd_section *stabs_pseudo_section;
asection *bfdsec;
int nlist_size;
bfd_boolean in_mem_shared_cache;
in_mem_shared_cache = bfd_mach_o_in_shared_cached_memory (abfd);
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);
if (in_mem_shared_cache == 0)
{
if (seg->ilocalsym >= seg->iextdefsym || seg->ilocalsym >= seg->iundefsym)
return 0;
if (seg->ilocalsym != 0 || seg->nlocalsym != seg->iextdefsym ||
seg->nlocalsym + seg->nextdefsym != seg->iundefsym)
return 0;
}
nlist_size = (bfd_mach_o_version (abfd) > 1) ? 16 : 12;
stabs_pseudo_section = bfd_get_section_by_name (abfd, "LC_SYMTAB.stabs");
if (stabs_pseudo_section == NULL)
return 0;
if (seg->nlocalsym > 0)
{
prefix = "LC_DYSYMTAB.localstabs";
sname = (char *) 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->nlocalsym * nlist_size;
bfdsec->filepos = stabs_pseudo_section->filepos + (seg->ilocalsym * nlist_size);
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
}
if (seg->nextdefsym > 0 || seg->nundefsym > 0)
{
unsigned long num_nonlocalstabs;
if (in_mem_shared_cache)
{
num_nonlocalstabs = seg->nextdefsym;
}
else
{
num_nonlocalstabs = seg->nextdefsym + seg->nundefsym;
}
if (num_nonlocalstabs > 0)
{
prefix = "LC_DYSYMTAB.nonlocalstabs";
sname = (char *) 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 = (num_nonlocalstabs * nlist_size);
bfdsec->filepos = stabs_pseudo_section->filepos +
(seg->iextdefsym * nlist_size);
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
}
}
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";
int nlist_size = (bfd_mach_o_version (abfd) > 1) ? 16 : 12;
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 = (char *) 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 * nlist_size;
bfdsec->filepos = seg->symoff;
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
seg->stabs_segment = bfdsec;
prefix = "LC_SYMTAB.stabstr";
sname = (char *) 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 int wide)
{
unsigned char buf[64];
bfd_mach_o_segment_command *seg = &command->command.segment;
unsigned long i;
asection *bfdsec;
char *sname;
const char *prefix = "LC_SEGMENT";
unsigned int snamelen;
if (wide)
{
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 64, abfd) != 64)
return -1;
memcpy (seg->segname, buf, 16);
seg->vmaddr = bfd_h_get_64 (abfd, buf + 16);
seg->vmsize = bfd_h_get_64 (abfd, buf + 24);
seg->fileoff = bfd_h_get_64 (abfd, buf + 32);
seg->filesize = bfd_h_get_64 (abfd, buf + 40);
seg->maxprot = bfd_h_get_32 (abfd, buf + 48);
seg->initprot = bfd_h_get_32 (abfd, buf + 52);
seg->nsects = bfd_h_get_32 (abfd, buf + 56);
seg->flags = bfd_h_get_32 (abfd, buf + 60);
}
else
{
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 = (char *) 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;
bfdsec->segment_mark = 1;
seg->segment = bfdsec;
if (seg->nsects != 0)
{
seg->sections =
((bfd_mach_o_section *)
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;
if (wide)
segoff = command->offset + 64 + 8 + (i * 80);
else
segoff = command->offset + 48 + 8 + (i * 68);
if (bfd_mach_o_scan_read_section
(abfd, &seg->sections[i], segoff, wide) != 0)
return -1;
}
}
return 0;
}
static int
bfd_mach_o_scan_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_scan_read_segment (abfd, command, 0);
}
static int
bfd_mach_o_scan_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
{
return bfd_mach_o_scan_read_segment (abfd, command, 1);
}
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));
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_32 (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_SEGMENT_64:
if (bfd_mach_o_scan_read_segment_64 (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:
case BFD_MACH_O_LC_REEXPORT_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_UUID:
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
if (bfd_bread ((PTR) &mdata->uuid[0],
sizeof (mdata->uuid), abfd) != sizeof (mdata->uuid))
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:
case BFD_MACH_O_LC_ROUTINES_64:
case BFD_MACH_O_LC_RPATH:
case BFD_MACH_O_LC_CODE_SIGNATURE:
case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
case BFD_MACH_O_LC_ENCRYPTION_INFO:
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
|| mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
{
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
|| mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
{
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);
}
else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
&& (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE_64))
{
unsigned char buf[8];
bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET);
if (bfd_bread (buf, 8, abfd) != 8)
return -1;
abfd->start_address = bfd_h_get_64 (abfd, buf);
}
else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_ARM)
&& (cmd->flavours[i].flavour == BFD_MACH_O_ARM_THREAD_STATE))
{
unsigned char buf[8];
bfd_seek (abfd, cmd->flavours[i].offset + 60, 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_X86_64)
&& (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
{
unsigned char buf[8];
bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET);
if (bfd_bread (buf, 8, abfd) != 8)
return -1;
abfd->start_address = bfd_h_get_64 (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;
unsigned int hdrsize;
hdrsize = (header->version == 2) ? 32 : 28;
mdata->header = *header;
mdata->symbols = NULL;
mdata->scanning_load_cmds = 1;
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_mach_o_load_command *)
bfd_zalloc (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 = hdrsize;
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)
{
#if 0
fprintf (stderr, "bfd_mach_o_scan: unable to scan start address: %s\n",
bfd_errmsg (bfd_get_error ()));
abfd->tdata.mach_o_data = NULL;
return -1;
#endif
}
bfd_mach_o_flatten_sections (abfd);
mdata->scanning_load_cmds = 0;
return 0;
}
bfd_boolean
bfd_mach_o_mkobject (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = NULL;
mdata = ((bfd_mach_o_data_struct *)
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;
}
int
bfd_mach_o_stub_library (bfd *abfd)
{
bfd_mach_o_header header;
if (bfd_mach_o_read_header (abfd, &header) != 0)
return 0;
if (header.filetype == BFD_MACH_O_MH_DYLIB_STUB)
return 1;
return 0;
}
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 = (mach_o_fat_data_struct *)
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 = (mach_o_fat_archentry *)
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);
if (prev == NULL)
i = 0;
else
{
for (i = 0; i < adata->nfat_arch; i++)
{
if (adata->archentries[i].abfd == prev)
break;
}
if (i == adata->nfat_arch)
{
bfd_set_error (bfd_error_bad_value);
return NULL;
}
i++;
}
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;
#ifdef BFD_TRACK_OPEN_CLOSE
printf ("Opening 0x%lx from FAT archive 0x%lx: \"%s\"\n", (unsigned long) entry->abfd,
(unsigned long) archive, entry->abfd->filename);
#endif
}
#ifdef BFD_TRACK_OPEN_CLOSE
else
printf ("Opening 0x%lx from FAT archive cache 0x%lx: \"%s\"\n",
(unsigned long) entry->abfd,
(unsigned long) archive, entry->abfd->filename);
#endif
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
&& cmd->type != BFD_MACH_O_LC_SEGMENT_64)
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_ARM:
return 0x40000000;
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;
}
}
static int
bfd_mach_o_core_parse_environment (bfd *abfd ATTRIBUTE_UNUSED,
unsigned char *buf,
bfd_size_type len,
unsigned char **rbuf,
bfd_size_type *rlen)
{
unsigned char *end, *start;
end = buf + len - 1;
while ((end > buf) && (*end == '\0'))
end--;
if ((end <= buf) && (*end == '\0'))
return -1;
end++;
for (start = end; start >= (buf + 4); start--)
{
if ((start[-1] == '\0')
&& (start[-2] == '\0')
&& (start[-3] == '\0')
&& (start[-4] == '\0'))
{
break;
}
}
if (start < (buf + 4))
return -2;
*rlen = (end - start);
*rbuf = start;
return 0;
}
bfd_boolean
bfd_mach_o_core_fetch_environment (bfd *abfd,
unsigned char **rbuf,
bfd_size_type *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
&& cur->type != BFD_MACH_O_LC_SEGMENT_64)
continue;
seg = &cur->command.segment;
if ((seg->vmaddr + seg->vmsize) == stackaddr)
{
bfd_size_type start = seg->fileoff;
bfd_size_type end = seg->fileoff + seg->filesize;
unsigned char *buf = bfd_malloc (1024 * 1);
bfd_size_type size = 1024 * 1;
for (;;)
{
bfd_size_type nread = 0;
int ret;
unsigned char *nrbuf;
bfd_size_type nrlen;
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 FALSE;
ret = bfd_mach_o_core_parse_environment
(abfd, buf, size, &nrbuf, &nrlen);
if (ret == 0)
{
*rbuf = bfd_malloc (nrlen);
memcpy (*rbuf, nrbuf, nrlen);
*rlen = nrlen;
free (buf);
return TRUE;
}
if (size == (end - start))
{
free (buf);
return FALSE;
}
size *= 2;
}
}
}
return FALSE;
}
char *
bfd_mach_o_core_file_failing_command (bfd *abfd)
{
unsigned char *buf = NULL;
bfd_size_type len = 0;
char *p;
int ret = -1;
ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
if (ret <= 0)
return NULL;
p = xstrdup ((char *) buf);
free (buf);
return p;
}
int
bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
{
return 0;
}
bfd_boolean
bfd_mach_o_core_file_matches_executable_p (bfd *core_bfd ATTRIBUTE_UNUSED,
bfd *exec_bfd ATTRIBUTE_UNUSED)
{
return TRUE;
}
bfd_boolean
bfd_mach_o_get_uuid (bfd *abfd, unsigned char *buf, unsigned long buf_len)
{
if (bfd_get_flavour (abfd) == bfd_target_mach_o_flavour)
{
unsigned i;
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
const unsigned k_uuid_size = sizeof (mdata->uuid);
for (i = 0; i < k_uuid_size; ++i)
{
if (mdata->uuid[i] != 0)
{
memcpy (buf,
&mdata->uuid[0],
buf_len > k_uuid_size ? k_uuid_size : buf_len);
return TRUE;
}
}
}
return FALSE;
}
static bfd_boolean
mach_o_bfd_thin_free_cached_info (bfd *input)
{
if (bfd_check_format (input, bfd_archive))
bfd_archive_free_cached_info (input);
return TRUE;
}
static bfd_boolean
mach_o_bfd_fat_free_cached_info (bfd *input)
{
if (bfd_check_format (input, bfd_archive))
{
unsigned int i;
mach_o_fat_data_struct *adata
= (mach_o_fat_data_struct *) input->tdata.mach_o_fat_data;
for (i = 0; i < adata->nfat_arch; i++)
{
if (adata->archentries[i].abfd != NULL)
{
bfd_free_cached_info (adata->archentries[i].abfd);
bfd_close (adata->archentries[i].abfd);
adata->archentries[i].abfd = NULL;
}
}
}
return TRUE;
}
#define bfd_mach_o_bfd_free_cached_info mach_o_bfd_thin_free_cached_info
#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
#undef bfd_mach_o_bfd_free_cached_info
#define bfd_mach_o_bfd_free_cached_info mach_o_bfd_fat_free_cached_info
#include "mach-o-target.c"
#undef TARGET_NAME
#undef TARGET_STRING
#undef TARGET_BIG_ENDIAN
#undef TARGET_ARCHIVE