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-rw-r--r--bfd/mach-o.c2163
1 files changed, 2163 insertions, 0 deletions
diff --git a/bfd/mach-o.c b/bfd/mach-o.c
new file mode 100644
index 0000000..6243220
--- /dev/null
+++ b/bfd/mach-o.c
@@ -0,0 +1,2163 @@
+/* Mach-O support for BFD.
+ Copyright 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "mach-o.h"
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libiberty.h"
+#include <ctype.h>
+
+#ifndef BFD_IO_FUNCS
+#define BFD_IO_FUNCS 0
+#endif
+
+#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
+#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
+#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
+#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
+#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
+#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
+#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
+#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
+#define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt
+#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
+#define bfd_mach_o_close_and_cleanup _bfd_generic_close_and_cleanup
+#define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
+#define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook
+#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
+#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
+#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
+#define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line
+#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_discard_group bfd_generic_discard_group
+
+static boolean bfd_mach_o_bfd_copy_private_symbol_data PARAMS ((bfd *, asymbol *, bfd *, asymbol *));
+static boolean bfd_mach_o_bfd_copy_private_section_data PARAMS ((bfd *, asection *, bfd *, asection *));
+static boolean bfd_mach_o_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *));
+static long bfd_mach_o_count_symbols PARAMS ((bfd *));
+static long bfd_mach_o_get_symtab_upper_bound PARAMS ((bfd *));
+static long bfd_mach_o_get_symtab PARAMS ((bfd *, asymbol **));
+static void bfd_mach_o_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
+static void bfd_mach_o_print_symbol PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
+static void bfd_mach_o_convert_architecture PARAMS ((bfd_mach_o_cpu_type, bfd_mach_o_cpu_subtype, enum bfd_architecture *, unsigned long *));
+static boolean bfd_mach_o_write_contents PARAMS ((bfd *));
+static int bfd_mach_o_sizeof_headers PARAMS ((bfd *, boolean));
+static asymbol * bfd_mach_o_make_empty_symbol PARAMS ((bfd *));
+static int bfd_mach_o_write_header PARAMS ((bfd *, bfd_mach_o_header *));
+static int bfd_mach_o_read_header PARAMS ((bfd *, bfd_mach_o_header *));
+static asection * bfd_mach_o_make_bfd_section PARAMS ((bfd *, bfd_mach_o_section *));
+static int bfd_mach_o_scan_read_section PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma));
+static int bfd_mach_o_scan_write_section PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma));
+static int bfd_mach_o_scan_write_symtab_symbols PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_write_thread PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_dylinker PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_dylib PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_prebound_dylib PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_thread PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_write_symtab PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_dysymtab PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_symtab PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_segment PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_write_segment PARAMS ((bfd *, bfd_mach_o_load_command *));
+static int bfd_mach_o_scan_read_command PARAMS ((bfd *, bfd_mach_o_load_command *));
+static void bfd_mach_o_flatten_sections PARAMS ((bfd *));
+static const char * bfd_mach_o_i386_flavour_string PARAMS ((unsigned int));
+static const char * bfd_mach_o_ppc_flavour_string PARAMS ((unsigned int));
+
+/* The flags field of a section structure is separated into two parts a section
+ type and section attributes. The section types are mutually exclusive (it
+ can only have one type) but the section attributes are not (it may have more
+ than one attribute). */
+
+#define SECTION_TYPE 0x000000ff /* 256 section types. */
+#define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */
+
+/* Constants for the section attributes part of the flags field of a section
+ structure. */
+
+#define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */
+#define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */
+#define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */
+#define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */
+#define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */
+#define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */
+
+#define N_STAB 0xe0
+#define N_TYPE 0x1e
+#define N_EXT 0x01
+#define N_UNDF 0x0
+#define N_ABS 0x2
+#define N_SECT 0xe
+#define N_INDR 0xa
+
+boolean
+bfd_mach_o_valid (abfd)
+ bfd *abfd;
+{
+ if (abfd == NULL || abfd->xvec == NULL)
+ return 0;
+
+ if (! ((abfd->xvec == &mach_o_be_vec)
+ || (abfd->xvec == &mach_o_le_vec)
+ || (abfd->xvec == &mach_o_fat_vec)))
+ return 0;
+
+ if (abfd->tdata.mach_o_data == NULL)
+ return 0;
+ return 1;
+}
+
+/* Copy any private info we understand from the input symbol
+ to the output symbol. */
+
+static boolean
+bfd_mach_o_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
+ bfd *ibfd ATTRIBUTE_UNUSED;
+ asymbol *isymbol ATTRIBUTE_UNUSED;
+ bfd *obfd ATTRIBUTE_UNUSED;
+ asymbol *osymbol ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+/* Copy any private info we understand from the input section
+ to the output section. */
+
+static boolean
+bfd_mach_o_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
+ bfd *ibfd ATTRIBUTE_UNUSED;
+ asection *isection ATTRIBUTE_UNUSED;
+ bfd *obfd ATTRIBUTE_UNUSED;
+ asection *osection ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+/* Copy any private info we understand from the input bfd
+ to the output bfd. */
+
+static boolean
+bfd_mach_o_bfd_copy_private_bfd_data (ibfd, obfd)
+ 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 (abfd)
+ 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 (abfd)
+ 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_get_symtab (abfd, alocation)
+ 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_get_symtab: unable to load symbols for section %lu\n", i);
+ return 0;
+ }
+
+ BFD_ASSERT (sym->symbols != NULL);
+
+ for (j = 0; j < sym->nsyms; j++)
+ {
+ BFD_ASSERT (csym < (alocation + nsyms));
+ *csym++ = &sym->symbols[j];
+ }
+ }
+ }
+
+ *csym++ = NULL;
+
+ return nsyms;
+}
+
+static void
+bfd_mach_o_get_symbol_info (abfd, symbol, ret)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asymbol *symbol;
+ symbol_info *ret;
+{
+ bfd_symbol_info (symbol, ret);
+}
+
+static void
+bfd_mach_o_print_symbol (abfd, afile, symbol, how)
+ 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 (mtype, msubtype, type, subtype)
+ bfd_mach_o_cpu_type mtype;
+ bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED;
+ enum bfd_architecture *type;
+ unsigned long *subtype;
+{
+ *subtype = bfd_arch_unknown;
+
+ switch (mtype)
+ {
+ case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break;
+ case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break;
+ case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break;
+ case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break;
+ case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break;
+ case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break;
+ case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break;
+ case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break;
+ case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break;
+ case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break;
+ case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break;
+ case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break;
+ default: *type = bfd_arch_unknown; break;
+ }
+
+ switch (*type)
+ {
+ case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break;
+ case bfd_arch_sparc: *subtype = bfd_mach_sparc; break;
+ default:
+ *subtype = bfd_arch_unknown;
+ }
+}
+
+static boolean
+bfd_mach_o_write_contents (abfd)
+ bfd *abfd;
+{
+ unsigned int i;
+ asection *s;
+
+ bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
+
+ /* Write data sections first in case they overlap header data to be
+ written later. */
+
+ for (s = abfd->sections; s != (asection *) NULL; s = s->next)
+ ;
+
+#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
+
+ /* Now write header information. */
+ if (bfd_mach_o_write_header (abfd, &mdata->header) != 0)
+ return false;
+
+ for (i = 0; i < mdata->header.ncmds; i++)
+ {
+ unsigned char buf[8];
+ bfd_mach_o_load_command *cur = &mdata->commands[i];
+ unsigned long typeflag;
+
+ typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type;
+
+ bfd_h_put_32 (abfd, typeflag, buf);
+ bfd_h_put_32 (abfd, cur->len, buf + 4);
+
+ bfd_seek (abfd, cur->offset, SEEK_SET);
+ if (bfd_bwrite ((PTR) buf, 8, abfd) != 8)
+ return false;
+
+ switch (cur->type)
+ {
+ case BFD_MACH_O_LC_SEGMENT:
+ if (bfd_mach_o_scan_write_segment (abfd, cur) != 0)
+ return false;
+ break;
+ case BFD_MACH_O_LC_SYMTAB:
+ if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0)
+ return false;
+ break;
+ case BFD_MACH_O_LC_SYMSEG:
+ break;
+ case BFD_MACH_O_LC_THREAD:
+ case BFD_MACH_O_LC_UNIXTHREAD:
+ if (bfd_mach_o_scan_write_thread (abfd, cur) != 0)
+ return false;
+ break;
+ case BFD_MACH_O_LC_LOADFVMLIB:
+ case BFD_MACH_O_LC_IDFVMLIB:
+ case BFD_MACH_O_LC_IDENT:
+ case BFD_MACH_O_LC_FVMFILE:
+ case BFD_MACH_O_LC_PREPAGE:
+ case BFD_MACH_O_LC_DYSYMTAB:
+ case BFD_MACH_O_LC_LOAD_DYLIB:
+ case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
+ case BFD_MACH_O_LC_ID_DYLIB:
+ case BFD_MACH_O_LC_LOAD_DYLINKER:
+ case BFD_MACH_O_LC_ID_DYLINKER:
+ case BFD_MACH_O_LC_PREBOUND_DYLIB:
+ case BFD_MACH_O_LC_ROUTINES:
+ case BFD_MACH_O_LC_SUB_FRAMEWORK:
+ break;
+ default:
+ fprintf (stderr,
+ "unable to write unknown load command 0x%lx\n",
+ (long) cur->type);
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static int
+bfd_mach_o_sizeof_headers (a, b)
+ bfd *a ATTRIBUTE_UNUSED;
+ boolean b ATTRIBUTE_UNUSED;
+{
+ return 0;
+}
+
+/* Make an empty symbol. This is required only because
+ bfd_make_section_anyway wants to create a symbol for the section. */
+
+static asymbol *
+bfd_mach_o_make_empty_symbol (abfd)
+ 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_write_header (abfd, header)
+ bfd *abfd;
+ bfd_mach_o_header *header;
+{
+ unsigned char buf[28];
+
+ bfd_h_put_32 (abfd, header->magic, buf + 0);
+ bfd_h_put_32 (abfd, header->cputype, buf + 4);
+ bfd_h_put_32 (abfd, header->cpusubtype, buf + 8);
+ bfd_h_put_32 (abfd, header->filetype, buf + 12);
+ bfd_h_put_32 (abfd, header->ncmds, buf + 16);
+ bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20);
+ bfd_h_put_32 (abfd, header->flags, buf + 24);
+
+ bfd_seek (abfd, 0, SEEK_SET);
+ if (bfd_bwrite ((PTR) buf, 28, abfd) != 28)
+ return -1;
+
+ return 0;
+}
+
+static int
+bfd_mach_o_read_header (abfd, header)
+ bfd *abfd;
+ bfd_mach_o_header *header;
+{
+ unsigned char buf[28];
+ bfd_vma (*get32) PARAMS ((const bfd_byte *)) = NULL;
+
+ bfd_seek (abfd, 0, SEEK_SET);
+
+ if (bfd_bread ((PTR) buf, 28, abfd) != 28)
+ return -1;
+
+ if (bfd_getb32 (buf) == 0xfeedface)
+ {
+ header->byteorder = BFD_ENDIAN_BIG;
+ header->magic = 0xfeedface;
+ get32 = bfd_getb32;
+ }
+ else if (bfd_getl32 (buf) == 0xfeedface)
+ {
+ header->byteorder = BFD_ENDIAN_LITTLE;
+ header->magic = 0xfeedface;
+ get32 = bfd_getl32;
+ }
+ else
+ {
+ header->byteorder = BFD_ENDIAN_UNKNOWN;
+ return -1;
+ }
+
+ header->cputype = (*get32) (buf + 4);
+ header->cpusubtype = (*get32) (buf + 8);
+ header->filetype = (*get32) (buf + 12);
+ header->ncmds = (*get32) (buf + 16);
+ header->sizeofcmds = (*get32) (buf + 20);
+ header->flags = (*get32) (buf + 24);
+
+ return 0;
+}
+
+static asection *
+bfd_mach_o_make_bfd_section (abfd, 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->_raw_size = section->size;
+ bfdsec->filepos = section->offset;
+ bfdsec->alignment_power = section->align;
+
+ if (section->flags & BFD_MACH_O_S_ZEROFILL)
+ bfdsec->flags = SEC_ALLOC;
+ else
+ bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
+
+ return bfdsec;
+}
+
+static int
+bfd_mach_o_scan_read_section (abfd, section, offset)
+ bfd *abfd;
+ bfd_mach_o_section *section;
+ bfd_vma offset;
+{
+ unsigned char buf[68];
+
+ bfd_seek (abfd, offset, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 68, abfd) != 68)
+ return -1;
+
+ memcpy (section->sectname, buf, 16);
+ section->sectname[16] = '\0';
+ memcpy (section->segname, buf + 16, 16);
+ section->segname[16] = '\0';
+ section->addr = bfd_h_get_32 (abfd, buf + 32);
+ section->size = bfd_h_get_32 (abfd, buf + 36);
+ section->offset = bfd_h_get_32 (abfd, buf + 40);
+ section->align = bfd_h_get_32 (abfd, buf + 44);
+ section->reloff = bfd_h_get_32 (abfd, buf + 48);
+ section->nreloc = bfd_h_get_32 (abfd, buf + 52);
+ section->flags = bfd_h_get_32 (abfd, buf + 56);
+ section->reserved1 = bfd_h_get_32 (abfd, buf + 60);
+ section->reserved2 = bfd_h_get_32 (abfd, buf + 64);
+ section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
+
+ if (section->bfdsection == NULL)
+ return -1;
+
+ return 0;
+}
+
+static int
+bfd_mach_o_scan_write_section (abfd, section, offset)
+ 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_symtab_symbols (abfd, command)
+ 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];
+
+ /* Don't set this from the symbol information; use stored values. */
+#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
+
+ /* Instead just set from the stored values. */
+ ntype = (s->udata.i >> 24) & 0xff;
+ nsect = (s->udata.i >> 16) & 0xff;
+ ndesc = s->udata.i & 0xffff;
+
+ bfd_h_put_32 (abfd, s->name - sym->strtab, buf);
+ bfd_h_put_8 (abfd, ntype, buf + 4);
+ bfd_h_put_8 (abfd, nsect, buf + 5);
+ bfd_h_put_16 (abfd, ndesc, buf + 6);
+ bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8);
+
+ bfd_seek (abfd, symoff, SEEK_SET);
+ if (bfd_bwrite ((PTR) buf, 12, abfd) != 12)
+ {
+ fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n",
+ 12, (unsigned long) symoff);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int
+bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, i)
+ bfd *abfd;
+ bfd_mach_o_symtab_command *sym;
+ asymbol *s;
+ unsigned long i;
+{
+ bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
+ bfd_vma symoff = sym->symoff + (i * 12);
+ unsigned char buf[12];
+ unsigned char type = -1;
+ unsigned char section = -1;
+ short desc = -1;
+ long value = -1;
+ unsigned long stroff = -1;
+ unsigned int symtype = -1;
+
+ BFD_ASSERT (sym->strtab != NULL);
+
+ bfd_seek (abfd, symoff, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 12, abfd) != 12)
+ {
+ fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n",
+ 12, (unsigned long) symoff);
+ return -1;
+ }
+
+ stroff = bfd_h_get_32 (abfd, buf);
+ type = bfd_h_get_8 (abfd, buf + 4);
+ symtype = (type & 0x0e);
+ section = bfd_h_get_8 (abfd, buf + 5) - 1;
+ desc = bfd_h_get_16 (abfd, buf + 6);
+ value = bfd_h_get_32 (abfd, buf + 8);
+
+ if (stroff >= sym->strsize)
+ {
+ fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n",
+ (unsigned long) stroff, (unsigned long) sym->strsize);
+ return -1;
+ }
+
+ s->the_bfd = abfd;
+ s->name = sym->strtab + stroff;
+ s->value = value;
+ s->udata.i = (type << 24) | (section << 16) | desc;
+ s->flags = 0x0;
+
+ if (type & BFD_MACH_O_N_STAB)
+ {
+ s->flags |= BSF_DEBUGGING;
+ s->section = bfd_und_section_ptr;
+ }
+ else
+ {
+ if (type & BFD_MACH_O_N_PEXT)
+ {
+ type &= ~BFD_MACH_O_N_PEXT;
+ s->flags |= BSF_GLOBAL;
+ }
+
+ if (type & BFD_MACH_O_N_EXT)
+ {
+ type &= ~BFD_MACH_O_N_EXT;
+ s->flags |= BSF_GLOBAL;
+ }
+
+ switch (symtype)
+ {
+ case BFD_MACH_O_N_UNDF:
+ s->section = bfd_und_section_ptr;
+ break;
+ case BFD_MACH_O_N_PBUD:
+ s->section = bfd_und_section_ptr;
+ break;
+ case BFD_MACH_O_N_ABS:
+ s->section = bfd_abs_section_ptr;
+ break;
+ case BFD_MACH_O_N_SECT:
+ if ((section > 0) && (section <= mdata->nsects))
+ {
+ s->section = mdata->sections[section - 1]->bfdsection;
+ s->value = s->value - mdata->sections[section - 1]->addr;
+ }
+ else
+ {
+ /* Mach-O uses 0 to mean "no section"; not an error. */
+ if (section != 0)
+ {
+ fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
+ "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n",
+ s->name, section, mdata->nsects);
+ }
+ s->section = bfd_und_section_ptr;
+ }
+ break;
+ case BFD_MACH_O_N_INDR:
+ fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
+ "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n",
+ s->name);
+ s->section = bfd_und_section_ptr;
+ break;
+ default:
+ fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
+ "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n",
+ s->name, symtype);
+ s->section = bfd_und_section_ptr;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int
+bfd_mach_o_scan_read_symtab_strtab (abfd, sym)
+ 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 = 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 (abfd, sym)
+ 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 (abfd, dysym, sym, s, i)
+ bfd *abfd;
+ bfd_mach_o_dysymtab_command *dysym;
+ bfd_mach_o_symtab_command *sym;
+ asymbol *s;
+ unsigned long i;
+{
+ unsigned long isymoff = dysym->indirectsymoff + (i * 4);
+ unsigned long symindex;
+ unsigned char buf[4];
+
+ BFD_ASSERT (i < dysym->nindirectsyms);
+
+ bfd_seek (abfd, isymoff, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 4, abfd) != 4)
+ {
+ fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n",
+ (unsigned long) 4, isymoff);
+ return -1;
+ }
+ symindex = bfd_h_get_32 (abfd, buf);
+
+ return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex);
+}
+
+static const char *
+bfd_mach_o_i386_flavour_string (flavour)
+ unsigned int flavour;
+{
+ switch ((int) flavour)
+ {
+ case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE";
+ case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE";
+ case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE";
+ case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE";
+ case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE";
+ case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE";
+ case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE";
+ case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE";
+ case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE";
+ case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE";
+ case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE";
+ case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE";
+ default: return "UNKNOWN";
+ }
+}
+
+static const char *
+bfd_mach_o_ppc_flavour_string (flavour)
+ unsigned int flavour;
+{
+ switch ((int) flavour)
+ {
+ case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
+ case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
+ case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
+ case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
+ default: return "UNKNOWN";
+ }
+}
+
+static int
+bfd_mach_o_scan_write_thread (abfd, command)
+ 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_read_dylinker (abfd, command)
+ 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->_raw_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 (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ bfd_mach_o_dylib_command *cmd = &command->command.dylib;
+ unsigned char buf[16];
+ unsigned int nameoff;
+ asection *bfdsec;
+ char *sname;
+ const char *prefix;
+
+ BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB)
+ || (command->type == BFD_MACH_O_LC_LOAD_DYLIB)
+ || (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB));
+
+ bfd_seek (abfd, command->offset + 8, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 16, abfd) != 16)
+ return -1;
+
+ nameoff = bfd_h_get_32 (abfd, buf + 0);
+ cmd->timestamp = bfd_h_get_32 (abfd, buf + 4);
+ cmd->current_version = bfd_h_get_32 (abfd, buf + 8);
+ cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12);
+
+ cmd->name_offset = command->offset + nameoff;
+ cmd->name_len = command->len - nameoff;
+
+ if (command->type == BFD_MACH_O_LC_LOAD_DYLIB)
+ prefix = "LC_LOAD_DYLIB";
+ else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)
+ prefix = "LC_LOAD_WEAK_DYLIB";
+ else if (command->type == BFD_MACH_O_LC_ID_DYLIB)
+ prefix = "LC_ID_DYLIB";
+ else
+ abort ();
+
+ sname = (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->_raw_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 (abfd, command)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_mach_o_load_command *command ATTRIBUTE_UNUSED;
+{
+ /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
+
+ BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
+ return 0;
+}
+
+static int
+bfd_mach_o_scan_read_thread (abfd, command)
+ 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 i = 0;
+
+ switch (mdata->header.cputype)
+ {
+ case BFD_MACH_O_CPU_TYPE_POWERPC:
+ flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
+ break;
+ case BFD_MACH_O_CPU_TYPE_I386:
+ flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
+ break;
+ default:
+ flavourstr = "UNKNOWN_ARCHITECTURE";
+ break;
+ }
+
+ snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
+ sname = (char *) bfd_alloc (abfd, snamelen);
+ if (sname == NULL)
+ return -1;
+
+ for (;;)
+ {
+ sprintf (sname, "%s.%s.%u", prefix, flavourstr, i);
+ if (bfd_get_section_by_name (abfd, sname) == NULL) {
+ break;
+ }
+ i++;
+ }
+
+ bfdsec = bfd_make_section (abfd, sname);
+
+ bfdsec->vma = 0;
+ bfdsec->lma = 0;
+ bfdsec->_raw_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_write_symtab (abfd, command)
+ 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 int
+bfd_mach_o_scan_read_dysymtab (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab;
+ unsigned char buf[72];
+
+ BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
+
+ bfd_seek (abfd, command->offset + 8, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 72, abfd) != 72)
+ return -1;
+
+ seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0);
+ seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4);
+ seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8);
+ seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12);
+ seg->iundefsym = bfd_h_get_32 (abfd, buf + 16);
+ seg->nundefsym = bfd_h_get_32 (abfd, buf + 20);
+ seg->tocoff = bfd_h_get_32 (abfd, buf + 24);
+ seg->ntoc = bfd_h_get_32 (abfd, buf + 28);
+ seg->modtaboff = bfd_h_get_32 (abfd, buf + 32);
+ seg->nmodtab = bfd_h_get_32 (abfd, buf + 36);
+ seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40);
+ seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44);
+ seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48);
+ seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52);
+ seg->extreloff = bfd_h_get_32 (abfd, buf + 56);
+ seg->nextrel = bfd_h_get_32 (abfd, buf + 60);
+ seg->locreloff = bfd_h_get_32 (abfd, buf + 64);
+ seg->nlocrel = bfd_h_get_32 (abfd, buf + 68);
+
+ return 0;
+}
+
+static int
+bfd_mach_o_scan_read_symtab (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ bfd_mach_o_symtab_command *seg = &command->command.symtab;
+ unsigned char buf[16];
+ asection *bfdsec;
+ char *sname;
+ const char *prefix = "LC_SYMTAB.stabs";
+
+ BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
+
+ bfd_seek (abfd, command->offset + 8, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 16, abfd) != 16)
+ return -1;
+
+ seg->symoff = bfd_h_get_32 (abfd, buf);
+ seg->nsyms = bfd_h_get_32 (abfd, buf + 4);
+ seg->stroff = bfd_h_get_32 (abfd, buf + 8);
+ seg->strsize = bfd_h_get_32 (abfd, buf + 12);
+ seg->symbols = NULL;
+ seg->strtab = NULL;
+
+ sname = (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->_raw_size = seg->nsyms * 12;
+ bfdsec->filepos = seg->symoff;
+ bfdsec->alignment_power = 0;
+ bfdsec->flags = SEC_HAS_CONTENTS;
+
+ seg->stabs_segment = bfdsec;
+
+ prefix = "LC_SYMTAB.stabstr";
+ sname = (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->_raw_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 (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ unsigned char buf[48];
+ bfd_mach_o_segment_command *seg = &command->command.segment;
+ unsigned long i;
+ asection *bfdsec;
+ char *sname;
+ const char *prefix = "LC_SEGMENT";
+ unsigned int snamelen;
+
+ BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
+
+ bfd_seek (abfd, command->offset + 8, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 48, abfd) != 48)
+ return -1;
+
+ memcpy (seg->segname, buf, 16);
+ seg->vmaddr = bfd_h_get_32 (abfd, buf + 16);
+ seg->vmsize = bfd_h_get_32 (abfd, buf + 20);
+ seg->fileoff = bfd_h_get_32 (abfd, buf + 24);
+ seg->filesize = bfd_h_get_32 (abfd, buf + 28);
+ /* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */
+ /* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */
+ seg->nsects = bfd_h_get_32 (abfd, buf + 40);
+ seg->flags = bfd_h_get_32 (abfd, buf + 44);
+
+ snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1;
+ sname = (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->_raw_size = seg->filesize;
+ bfdsec->filepos = seg->fileoff;
+ bfdsec->alignment_power = 0x0;
+ bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
+
+ seg->segment = bfdsec;
+
+ if (seg->nsects != 0)
+ {
+ seg->sections =
+ ((bfd_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 = command->offset + 48 + 8 + (i * 68);
+
+ if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i], segoff) != 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+bfd_mach_o_scan_write_segment (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ unsigned char buf[48];
+ bfd_mach_o_segment_command *seg = &command->command.segment;
+ unsigned long i;
+
+ BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
+
+ memcpy (buf, seg->segname, 16);
+ bfd_h_put_32 (abfd, seg->vmaddr, buf + 16);
+ bfd_h_put_32 (abfd, seg->vmsize, buf + 20);
+ bfd_h_put_32 (abfd, seg->fileoff, buf + 24);
+ bfd_h_put_32 (abfd, seg->filesize, buf + 28);
+ bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32);
+ bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36);
+ bfd_h_put_32 (abfd, seg->nsects, buf + 40);
+ bfd_h_put_32 (abfd, seg->flags, buf + 44);
+
+ bfd_seek (abfd, command->offset + 8, SEEK_SET);
+ if (bfd_bwrite ((PTR) buf, 48, abfd) != 48)
+ return -1;
+
+ {
+ char buf[1024];
+ bfd_vma nbytes = seg->filesize;
+ bfd_vma curoff = seg->fileoff;
+
+ while (nbytes > 0)
+ {
+ bfd_vma thisread = nbytes;
+
+ if (thisread > 1024)
+ thisread = 1024;
+
+ bfd_seek (abfd, curoff, SEEK_SET);
+ if (bfd_bread ((PTR) buf, thisread, abfd) != thisread)
+ return -1;
+
+ bfd_seek (abfd, curoff, SEEK_SET);
+ if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread)
+ return -1;
+
+ nbytes -= thisread;
+ curoff += thisread;
+ }
+ }
+
+ for (i = 0; i < seg->nsects; i++)
+ {
+ bfd_vma segoff = command->offset + 48 + 8 + (i * 68);
+
+ if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+bfd_mach_o_scan_read_command (abfd, command)
+ bfd *abfd;
+ bfd_mach_o_load_command *command;
+{
+ unsigned char buf[8];
+
+ bfd_seek (abfd, command->offset, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 8, abfd) != 8)
+ return -1;
+
+ command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD);
+ command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD) ? 1 : 0;
+ command->len = bfd_h_get_32 (abfd, buf + 4);
+
+ switch (command->type)
+ {
+ case BFD_MACH_O_LC_SEGMENT:
+ if (bfd_mach_o_scan_read_segment (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_SYMTAB:
+ if (bfd_mach_o_scan_read_symtab (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_SYMSEG:
+ break;
+ case BFD_MACH_O_LC_THREAD:
+ case BFD_MACH_O_LC_UNIXTHREAD:
+ if (bfd_mach_o_scan_read_thread (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_LOAD_DYLINKER:
+ case BFD_MACH_O_LC_ID_DYLINKER:
+ if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_LOAD_DYLIB:
+ case BFD_MACH_O_LC_ID_DYLIB:
+ case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
+ if (bfd_mach_o_scan_read_dylib (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_PREBOUND_DYLIB:
+ if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_LOADFVMLIB:
+ case BFD_MACH_O_LC_IDFVMLIB:
+ case BFD_MACH_O_LC_IDENT:
+ case BFD_MACH_O_LC_FVMFILE:
+ case BFD_MACH_O_LC_PREPAGE:
+ case BFD_MACH_O_LC_ROUTINES:
+ case BFD_MACH_O_LC_SUB_FRAMEWORK:
+ break;
+ case BFD_MACH_O_LC_DYSYMTAB:
+ if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0)
+ return -1;
+ break;
+ case BFD_MACH_O_LC_SUB_UMBRELLA:
+ case BFD_MACH_O_LC_SUB_CLIENT:
+ case BFD_MACH_O_LC_SUB_LIBRARY:
+ case BFD_MACH_O_LC_TWOLEVEL_HINTS:
+ case BFD_MACH_O_LC_PREBIND_CKSUM:
+ break;
+ default:
+ fprintf (stderr, "unable to read unknown load command 0x%lx\n",
+ (unsigned long) command->type);
+ break;
+ }
+
+ return 0;
+}
+
+static void
+bfd_mach_o_flatten_sections (abfd)
+ bfd *abfd;
+{
+ bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
+ long csect = 0;
+ unsigned long i, j;
+
+ mdata->nsects = 0;
+
+ for (i = 0; i < mdata->header.ncmds; i++)
+ {
+ if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT)
+ {
+ bfd_mach_o_segment_command *seg = &mdata->commands[i].command.segment;
+ mdata->nsects += seg->nsects;
+ }
+ }
+
+ mdata->sections = bfd_alloc (abfd, mdata->nsects * sizeof (bfd_mach_o_section *));
+ csect = 0;
+
+ for (i = 0; i < mdata->header.ncmds; i++)
+ {
+ if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT)
+ {
+ bfd_mach_o_segment_command *seg = &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 (abfd)
+ bfd *abfd;
+{
+ bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
+ bfd_mach_o_thread_command *cmd = NULL;
+ unsigned long i;
+
+ for (i = 0; i < mdata->header.ncmds; i++)
+ {
+ if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
+ (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
+ {
+ if (cmd == NULL)
+ cmd = &mdata->commands[i].command.thread;
+ else
+ return 0;
+ }
+ }
+
+ if (cmd == NULL)
+ return 0;
+
+ for (i = 0; i < cmd->nflavours; i++)
+ {
+ if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
+ && (cmd->flavours[i].flavour == (unsigned long) BFD_MACH_O_i386_THREAD_STATE))
+ {
+ unsigned char buf[4];
+
+ bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET);
+
+ if (bfd_bread (buf, 4, abfd) != 4)
+ return -1;
+
+ abfd->start_address = bfd_h_get_32 (abfd, buf);
+ }
+ else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
+ && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
+ {
+ unsigned char buf[4];
+
+ bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET);
+
+ if (bfd_bread (buf, 4, abfd) != 4)
+ return -1;
+
+ abfd->start_address = bfd_h_get_32 (abfd, buf);
+ }
+ }
+
+ return 0;
+}
+
+int
+bfd_mach_o_scan (abfd, header)
+ bfd *abfd;
+ bfd_mach_o_header *header;
+{
+ unsigned int i;
+ bfd_mach_o_data_struct *mdata = NULL;
+ enum bfd_architecture cputype;
+ unsigned long cpusubtype;
+
+ mdata = ((bfd_mach_o_data_struct *)
+ bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)));
+ if (mdata == NULL)
+ return -1;
+
+ mdata->header = *header;
+ mdata->symbols = NULL;
+
+ abfd->flags = abfd->xvec->object_flags | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS));
+ abfd->tdata.mach_o_data = mdata;
+
+ bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, &cputype, &cpusubtype);
+ if (cputype == bfd_arch_unknown)
+ {
+ fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n",
+ header->cputype, header->cpusubtype);
+ return -1;
+ }
+
+ bfd_set_arch_mach (abfd, cputype, cpusubtype);
+
+ if (header->ncmds != 0)
+ {
+ mdata->commands =
+ ((bfd_mach_o_load_command *)
+ bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)));
+ if (mdata->commands == NULL)
+ return -1;
+
+ for (i = 0; i < header->ncmds; i++)
+ {
+ bfd_mach_o_load_command *cur = &mdata->commands[i];
+
+ if (i == 0)
+ cur->offset = 28;
+ else
+ {
+ bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
+ cur->offset = prev->offset + prev->len;
+ }
+
+ if (bfd_mach_o_scan_read_command (abfd, cur) < 0)
+ return -1;
+ }
+ }
+
+ if (bfd_mach_o_scan_start_address (abfd) < 0)
+ {
+#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);
+
+ return 0;
+}
+
+boolean
+bfd_mach_o_mkobject (abfd)
+ 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 (abfd)
+ bfd *abfd;
+{
+ bfd_mach_o_header header;
+
+ if (bfd_mach_o_read_header (abfd, &header) != 0)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ if (! ((header.byteorder == BFD_ENDIAN_BIG)
+ || (header.byteorder == BFD_ENDIAN_LITTLE)))
+ {
+ fprintf (stderr, "unknown header byte-order value 0x%lx\n", (long) header.byteorder);
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ 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))))
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ abfd->tdata.mach_o_data = NULL;
+
+ if (bfd_mach_o_scan (abfd, &header) != 0)
+ {
+ abfd->tdata.mach_o_data = NULL;
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ return abfd->xvec;
+}
+
+const bfd_target *
+bfd_mach_o_core_p (abfd)
+ bfd *abfd;
+{
+ bfd_mach_o_header header;
+
+ bfd_set_error (bfd_error_wrong_format);
+
+ if (bfd_mach_o_read_header (abfd, &header) != 0)
+ return NULL;
+
+ 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))))
+ return NULL;
+
+ if (header.filetype != BFD_MACH_O_MH_CORE)
+ return NULL;
+
+ abfd->tdata.mach_o_data = NULL;
+ if (bfd_mach_o_scan (abfd, &header) != 0)
+ {
+ abfd->tdata.mach_o_data = NULL;
+ return NULL;
+ }
+
+ return abfd->xvec;
+}
+
+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 (abfd)
+ bfd *abfd;
+{
+ mach_o_fat_data_struct *adata;
+ unsigned char buf[20];
+ unsigned long i;
+
+ bfd_seek (abfd, 0, SEEK_SET);
+ if (bfd_bread ((PTR) buf, 8, abfd) != 8)
+ return NULL;
+
+ adata = (mach_o_fat_data_struct *)
+ bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
+ if (adata == NULL)
+ return NULL;
+
+ adata->magic = bfd_getb32 (buf);
+ adata->nfat_arch = bfd_getb32 (buf + 4);
+ if (adata->magic != 0xcafebabe)
+ return NULL;
+
+ adata->archentries = (mach_o_fat_archentry *)
+ bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
+ if (adata->archentries == NULL)
+ return NULL;
+
+ for (i = 0; i < adata->nfat_arch; i++)
+ {
+ bfd_seek (abfd, 8 + 20 * i, SEEK_SET);
+
+ if (bfd_bread ((PTR) buf, 20, abfd) != 20)
+ return NULL;
+ 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;
+}
+
+bfd *
+bfd_mach_o_openr_next_archived_file (archive, prev)
+ bfd *archive;
+ bfd *prev;
+{
+ mach_o_fat_data_struct *adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
+ mach_o_fat_archentry *entry = NULL;
+ unsigned long i;
+
+ BFD_ASSERT (adata != NULL);
+
+ /* Find index of previous entry. */
+ if (prev == NULL)
+ i = 0; /* Start at first one. */
+ else
+ {
+ for (i = 0; i < adata->nfat_arch; i++)
+ {
+ if (adata->archentries[i].abfd == prev)
+ break;
+ }
+
+ if (i == adata->nfat_arch)
+ {
+ /* Not found. */
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
+ }
+ i++; /* Get next entry. */
+ }
+
+ if (i >= adata->nfat_arch)
+ {
+ bfd_set_error (bfd_error_no_more_archived_files);
+ return NULL;
+ }
+
+ entry = &adata->archentries[i];
+ if (entry->abfd == NULL)
+ {
+ bfd *nbfd = _bfd_new_bfd_contained_in (archive);
+ char *s = NULL;
+
+ if (nbfd == NULL)
+ return NULL;
+
+ nbfd->origin = entry->offset;
+ s = bfd_malloc (strlen (archive->filename) + 1);
+ if (s == NULL)
+ return NULL;
+ strcpy (s, archive->filename);
+ nbfd->filename = s;
+ nbfd->iostream = NULL;
+ entry->abfd = nbfd;
+ }
+
+ return entry->abfd;
+}
+
+int bfd_mach_o_lookup_section
+ (bfd *abfd, asection *section,
+ bfd_mach_o_load_command **mcommand, bfd_mach_o_section **msection)
+{
+ struct mach_o_data_struct *md = abfd->tdata.mach_o_data;
+ unsigned int i, j, num;
+
+ bfd_mach_o_load_command *ncmd = NULL;
+ bfd_mach_o_section *nsect = NULL;
+
+ BFD_ASSERT (mcommand != NULL);
+ BFD_ASSERT (msection != NULL);
+
+ num = 0;
+ for (i = 0; i < md->header.ncmds; i++)
+ {
+ struct bfd_mach_o_load_command *cmd = &md->commands[i];
+ struct bfd_mach_o_segment_command *seg = NULL;
+
+ if (cmd->type != BFD_MACH_O_LC_SEGMENT)
+ continue;
+ seg = &cmd->command.segment;
+
+ if (seg->segment == section)
+ {
+ if (num == 0)
+ ncmd = cmd;
+ num++;
+ }
+
+ for (j = 0; j < seg->nsects; j++)
+ {
+ struct bfd_mach_o_section *sect = &seg->sections[j];
+
+ if (sect->bfdsection == section)
+ {
+ if (num == 0)
+ nsect = sect;
+ num++;
+ }
+ }
+ }
+
+ *mcommand = ncmd;
+ *msection = nsect;
+ return num;
+}
+
+int
+bfd_mach_o_lookup_command
+ (bfd *abfd, bfd_mach_o_load_command_type type,
+ bfd_mach_o_load_command **mcommand)
+{
+ struct mach_o_data_struct *md = NULL;
+ bfd_mach_o_load_command *ncmd = NULL;
+ unsigned int i, num;
+
+ md = abfd->tdata.mach_o_data;
+
+ BFD_ASSERT (md != NULL);
+ BFD_ASSERT (mcommand != NULL);
+
+ num = 0;
+ for (i = 0; i < md->header.ncmds; i++)
+ {
+ struct bfd_mach_o_load_command *cmd = &md->commands[i];
+
+ if (cmd->type != type)
+ continue;
+
+ if (num == 0)
+ ncmd = cmd;
+ num++;
+ }
+
+ *mcommand = ncmd;
+ return num;
+}
+
+unsigned long
+bfd_mach_o_stack_addr (type)
+ enum bfd_mach_o_cpu_type type;
+{
+ switch (type)
+ {
+ case BFD_MACH_O_CPU_TYPE_MC680x0:
+ return 0x04000000;
+ case BFD_MACH_O_CPU_TYPE_MC88000:
+ return 0xffffe000;
+ case BFD_MACH_O_CPU_TYPE_POWERPC:
+ return 0xc0000000;
+ case BFD_MACH_O_CPU_TYPE_I386:
+ return 0xc0000000;
+ case BFD_MACH_O_CPU_TYPE_SPARC:
+ return 0xf0000000;
+ case BFD_MACH_O_CPU_TYPE_I860:
+ return 0;
+ case BFD_MACH_O_CPU_TYPE_HPPA:
+ return (0xc0000000-0x04000000);
+ default:
+ return 0;
+ }
+}
+
+int
+bfd_mach_o_core_fetch_environment (abfd, rbuf, rlen)
+ bfd *abfd;
+ unsigned char **rbuf;
+ unsigned int *rlen;
+{
+ bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
+ unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
+ unsigned int i = 0;
+
+ for (i = 0; i < mdata->header.ncmds; i++)
+ {
+ bfd_mach_o_load_command *cur = &mdata->commands[i];
+ bfd_mach_o_segment_command *seg = NULL;
+
+ if (cur->type != BFD_MACH_O_LC_SEGMENT)
+ continue;
+
+ seg = &cur->command.segment;
+
+ if ((seg->vmaddr + seg->vmsize) == stackaddr)
+ {
+ unsigned long start = seg->fileoff;
+ unsigned long end = seg->fileoff + seg->filesize;
+ unsigned char *buf = bfd_malloc (1024);
+ unsigned long size = 1024;
+
+ for (;;)
+ {
+ bfd_size_type nread = 0;
+ unsigned long offset;
+ int found_nonnull = 0;
+
+ if (size > (end - start))
+ size = (end - start);
+
+ buf = bfd_realloc (buf, size);
+
+ bfd_seek (abfd, end - size, SEEK_SET);
+ nread = bfd_bread (buf, size, abfd);
+
+ if (nread != size)
+ return -1;
+
+ for (offset = 4; offset <= size; offset += 4)
+ {
+ unsigned long val = *((unsigned long *) (buf + size - offset));
+
+ if (! found_nonnull)
+ {
+ if (val != 0)
+ found_nonnull = 1;
+ }
+ else if (val == 0x0)
+ {
+ unsigned long bottom = seg->fileoff + seg->filesize - offset;
+ unsigned long top = seg->fileoff + seg->filesize - 4;
+
+ *rbuf = bfd_malloc (top - bottom);
+ *rlen = top - bottom;
+
+ memcpy (*rbuf, buf + size - *rlen, *rlen);
+ return 0;
+ }
+ }
+
+ if (size == (end - start))
+ break;
+
+ size *= 2;
+ }
+ }
+ }
+
+ return -1;
+}
+
+char *
+bfd_mach_o_core_file_failing_command (abfd)
+ bfd *abfd;
+{
+ unsigned char *buf = NULL;
+ unsigned int len = 0;
+ int ret = -1;
+
+ ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
+ if (ret < 0)
+ return NULL;
+
+ return buf;
+}
+
+int
+bfd_mach_o_core_file_failing_signal (abfd)
+ bfd *abfd ATTRIBUTE_UNUSED;
+{
+ return 0;
+}
+
+boolean
+bfd_mach_o_core_file_matches_executable_p (core_bfd, exec_bfd)
+ bfd *core_bfd ATTRIBUTE_UNUSED;
+ bfd *exec_bfd ATTRIBUTE_UNUSED;
+{
+ return true;
+}
+
+#define TARGET_NAME mach_o_be_vec
+#define TARGET_STRING "mach-o-be"
+#define TARGET_BIG_ENDIAN 1
+#define TARGET_ARCHIVE 0
+
+#include "mach-o-target.c"
+
+#undef TARGET_NAME
+#undef TARGET_STRING
+#undef TARGET_BIG_ENDIAN
+#undef TARGET_ARCHIVE
+
+#define TARGET_NAME mach_o_le_vec
+#define TARGET_STRING "mach-o-le"
+#define TARGET_BIG_ENDIAN 0
+#define TARGET_ARCHIVE 0
+
+#include "mach-o-target.c"
+
+#undef TARGET_NAME
+#undef TARGET_STRING
+#undef TARGET_BIG_ENDIAN
+#undef TARGET_ARCHIVE
+
+#define TARGET_NAME mach_o_fat_vec
+#define TARGET_STRING "mach-o-fat"
+#define TARGET_BIG_ENDIAN 1
+#define TARGET_ARCHIVE 1
+
+#include "mach-o-target.c"
+
+#undef TARGET_NAME
+#undef TARGET_STRING
+#undef TARGET_BIG_ENDIAN
+#undef TARGET_ARCHIVE
+