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mach-o: layout executables

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bfd/
	* mach-o.h (bfd_mach_o_dyld_info_command): Add rebase_content,
	bind_content, weak_bind_content, lazy_bind_content,
	export_content.
	(bfd_mach_o_load_command): Add comments, add next field.
	(mach_o_data_struct): Replace commands field by first_command
	and last_command.
	* mach-o.c (bfd_mach_o_append_command): New function.
	(bfd_mach_o_bfd_copy_private_symbol_data): Add blank lines.
	(bfd_mach_o_bfd_copy_private_section_data): Check flavour,
	copy fields.
	(bfd_mach_o_bfd_copy_private_header_data): Copy load commands.
	(bfd_mach_o_pad4, bfd_mach_o_pad_command): New functions.
	(bfd_mach_o_write_thread): Use macro instead of literal.
	(bfd_mach_o_write_dylinker, bfd_mach_o_write_dylib)
	(bfd_mach_o_write_main, bfd_mach_o_write_dyld_info): New
	functions.
	(bfd_mach_o_write_symtab_content): New function (extracted
	from bfd_mach_o_write_symtab).
	(bfd_mach_o_write_symtab): Split.
	(bfd_mach_o_count_indirect_symbols): Move
	(bfd_mach_o_build_dysymtab): Remove layout code.
	(bfd_mach_o_write_contents): Rewritten to build commands in order.
	(bfd_mach_o_count_sections_for_seg): Remove.
	(bfd_mach_o_build_obj_seg_command): New function (extracted from
	bfd_mach_o_build_seg_command).
	(bfd_mach_o_build_exec_seg_command): New function.
	(bfd_mach_o_build_dysymtab_command): Remove.
	(bfd_mach_o_layout_commands): New function.
	(bfd_mach_o_init_segment): New function.
	(bfd_mach_o_build_commands): Major rework to handle non-object
	files.
	(bfd_mach_o_alloc_and_read, bfd_mach_o_read_dyld_content): New
	function.
	(bfd_mach_o_read_dyld_info): Clear content fields.
	(bfd_mach_o_read_segment): Adjust call.
	(bfd_mach_o_flatten_sections): Adjust as now load commands are
	chained.
	(bfd_mach_o_scan_start_address, bfd_mach_o_scan)
	(bfd_mach_o_mkobject_init, bfd_mach_o_get_base_address)
	(bfd_mach_o_lookup_command, bfd_mach_o_core_fetch_environment):
	Likewise.

binutils/
	* od-macho.c (dump_section_map): Adjust as load commands
	are now chained.
	(dump_load_command, dump_section_content): Likewise.
This commit is contained in:
Tristan Gingold
2014-04-03 14:45:31 +02:00
parent 967b2c539a
commit c9ffd2eaf8
5 changed files with 1170 additions and 467 deletions
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6
binutils/ChangeLog
View File

@@ -1,3 +1,9 @@
2014-04-18 Tristan Gingold <gingold@adacore.com>
* od-macho.c (dump_section_map): Adjust as load commands
are now chained.
(dump_load_command, dump_section_content): Likewise.
2014-04-16 Tristan Gingold <gingold@adacore.com>
* od-macho.c (OPT_DYLD_INFO): New macro.

20
binutils/od-macho.c
View File

@@ -317,22 +317,22 @@ static void
dump_section_map (bfd *abfd)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
unsigned int i;
bfd_mach_o_load_command *cmd;
unsigned int sec_nbr = 0;
fputs (_("Segments and Sections:\n"), stdout);
fputs (_(" #: Segment name Section name Address\n"), stdout);
for (i = 0; i < mdata->header.ncmds; i++)
for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
{
bfd_mach_o_segment_command *seg;
bfd_mach_o_section *sec;
if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT
&& mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64)
if (cmd->type != BFD_MACH_O_LC_SEGMENT
&& cmd->type != BFD_MACH_O_LC_SEGMENT_64)
continue;
seg = &mdata->commands[i].command.segment;
seg = &cmd->command.segment;
printf ("[Segment %-16s ", seg->segname);
printf_vma (seg->vmaddr);
@@ -1644,12 +1644,11 @@ static void
dump_load_commands (bfd *abfd, unsigned int cmd32, unsigned int cmd64)
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bfd_mach_o_load_command *cmd;
unsigned int i;
for (i = 0; i < mdata->header.ncmds; i++)
for (cmd = mdata->first_command, i = 0; cmd != NULL; cmd = cmd->next, i++)
{
bfd_mach_o_load_command *cmd = &mdata->commands[i];
if (cmd32 == 0)
dump_load_command (abfd, cmd, i, FALSE);
else if (cmd->type == cmd32 || cmd->type == cmd64)
@@ -2070,11 +2069,10 @@ dump_section_content (bfd *abfd,
void (*dump)(bfd*, const unsigned char*, bfd_size_type))
{
bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
unsigned int i;
bfd_mach_o_load_command *cmd;
for (i = 0; i < mdata->header.ncmds; i++)
for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
{
bfd_mach_o_load_command *cmd = &mdata->commands[i];
if (cmd->type == BFD_MACH_O_LC_SEGMENT
|| cmd->type == BFD_MACH_O_LC_SEGMENT_64)
{