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-rw-r--r--binutils/od-macho.c67
1 files changed, 61 insertions, 6 deletions
diff --git a/binutils/od-macho.c b/binutils/od-macho.c
index 91e080e..d0b4cc1 100644
--- a/binutils/od-macho.c
+++ b/binutils/od-macho.c
@@ -27,6 +27,7 @@
#include "objdump.h"
#include "bucomm.h"
#include "bfdlink.h"
+#include "libbfd.h"
#include "mach-o.h"
#include "mach-o/external.h"
#include "mach-o/codesign.h"
@@ -38,6 +39,7 @@
#define OPT_LOAD 3
#define OPT_DYSYMTAB 4
#define OPT_CODESIGN 5
+#define OPT_SEG_SPLIT_INFO 6
/* List of actions. */
static struct objdump_private_option options[] =
@@ -48,6 +50,7 @@ static struct objdump_private_option options[] =
{ "load", 0 },
{ "dysymtab", 0 },
{ "codesign", 0 },
+ { "seg_split_info", 0 },
{ NULL, 0 }
};
@@ -58,12 +61,13 @@ mach_o_help (FILE *stream)
{
fprintf (stream, _("\
For Mach-O files:\n\
- header Display the file header\n\
- section Display the segments and sections commands\n\
- map Display the section map\n\
- load Display the load commands\n\
- dysymtab Display the dynamic symbol table\n\
- codesign Display code signature section\n\
+ header Display the file header\n\
+ section Display the segments and sections commands\n\
+ map Display the section map\n\
+ load Display the load commands\n\
+ dysymtab Display the dynamic symbol table\n\
+ codesign Display code signature\n\
+ seg_split_info Display segment split info\n\
"));
}
@@ -852,6 +856,53 @@ dump_code_signature (bfd *abfd, bfd_mach_o_linkedit_command *cmd)
}
static void
+dump_segment_split_info (bfd *abfd, bfd_mach_o_linkedit_command *cmd)
+{
+ unsigned char *buf = xmalloc (cmd->datasize);
+ unsigned char *p;
+ unsigned int len;
+ bfd_vma addr = 0;
+
+ if (bfd_seek (abfd, cmd->dataoff, SEEK_SET) != 0
+ || bfd_bread (buf, cmd->datasize, abfd) != cmd->datasize)
+ {
+ non_fatal (_("cannot read segment split info"));
+ free (buf);
+ return;
+ }
+ if (buf[cmd->datasize - 1] != 0)
+ {
+ non_fatal (_("segment split info is not nul terminated"));
+ free (buf);
+ return;
+ }
+
+ switch (buf[0])
+ {
+ case 0:
+ printf (_(" 32 bit pointers:\n"));
+ break;
+ case 1:
+ printf (_(" 64 bit pointers:\n"));
+ break;
+ case 2:
+ printf (_(" PPC hi-16:\n"));
+ break;
+ default:
+ printf (_(" Unhandled location type %u\n"), buf[0]);
+ break;
+ }
+ for (p = buf + 1; *p != 0; p += len)
+ {
+ addr += read_unsigned_leb128 (abfd, p, &len);
+ fputs (" ", stdout);
+ bfd_printf_vma (abfd, addr);
+ putchar ('\n');
+ }
+ free (buf);
+}
+
+static void
dump_load_command (bfd *abfd, bfd_mach_o_load_command *cmd,
bfd_boolean verbose)
{
@@ -942,6 +993,8 @@ dump_load_command (bfd *abfd, bfd_mach_o_load_command *cmd,
if (verbose && cmd->type == BFD_MACH_O_LC_CODE_SIGNATURE)
dump_code_signature (abfd, linkedit);
+ else if (verbose && cmd->type == BFD_MACH_O_LC_SEGMENT_SPLIT_INFO)
+ dump_segment_split_info (abfd, linkedit);
break;
}
case BFD_MACH_O_LC_SUB_FRAMEWORK:
@@ -1026,6 +1079,8 @@ mach_o_dump (bfd *abfd)
dump_load_commands (abfd, BFD_MACH_O_LC_DYSYMTAB, 0);
if (options[OPT_CODESIGN].selected)
dump_load_commands (abfd, BFD_MACH_O_LC_CODE_SIGNATURE, 0);
+ if (options[OPT_SEG_SPLIT_INFO].selected)
+ dump_load_commands (abfd, BFD_MACH_O_LC_SEGMENT_SPLIT_INFO, 0);
}
/* Vector for Mach-O. */