X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/69c41c4070c86baac11a627e9c3d366420aeb7cc..8b55eeeb70be4b4ff3dd4694013bdb1a9f668bc6:/src/unexmacosx.c
diff --git a/src/unexmacosx.c b/src/unexmacosx.c
index 0f5ad5498b..87848b012b 100644
--- a/src/unexmacosx.c
+++ b/src/unexmacosx.c
@@ -1,5 +1,5 @@
/* Dump Emacs in Mach-O format for use on Mac OS X.
- Copyright (C) 2001-2012 Free Software Foundation, Inc.
+ Copyright (C) 2001-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -97,6 +97,7 @@ along with GNU Emacs. If not, see . */
#undef free
#include "unexec.h"
+#include "lisp.h"
#include
#include
@@ -117,6 +118,13 @@ along with GNU Emacs. If not, see . */
#include
+/* LC_DATA_IN_CODE is not defined in mach-o/loader.h on OS X 10.7.
+ But it is used if we build with "Command Line Tools for Xcode 4.5
+ (OS X Lion) - September 2012". */
+#ifndef LC_DATA_IN_CODE
+#define LC_DATA_IN_CODE 0x29 /* table of non-instructions in __text */
+#endif
+
#ifdef _LP64
#define mach_header mach_header_64
#define segment_command segment_command_64
@@ -606,6 +614,26 @@ print_load_command_name (int lc)
case LC_FUNCTION_STARTS:
printf ("LC_FUNCTION_STARTS");
break;
+#endif
+#ifdef LC_MAIN
+ case LC_MAIN:
+ printf ("LC_MAIN ");
+ break;
+#endif
+#ifdef LC_DATA_IN_CODE
+ case LC_DATA_IN_CODE:
+ printf ("LC_DATA_IN_CODE ");
+ break;
+#endif
+#ifdef LC_SOURCE_VERSION
+ case LC_SOURCE_VERSION:
+ printf ("LC_SOURCE_VERSION");
+ break;
+#endif
+#ifdef LC_DYLIB_CODE_SIGN_DRS
+ case LC_DYLIB_CODE_SIGN_DRS:
+ printf ("LC_DYLIB_CODE_SIGN_DRS");
+ break;
#endif
default:
printf ("unknown ");
@@ -798,8 +826,24 @@ copy_data_segment (struct load_command *lc)
file. */
if (strncmp (sectp->sectname, SECT_DATA, 16) == 0)
{
- if (!unexec_write (sectp->offset, (void *) sectp->addr, sectp->size))
+ extern char my_edata[];
+ unsigned long my_size;
+
+ /* The __data section is basically dumped from memory. But
+ initialized data in statically linked libraries are
+ copied from the input file. In particular,
+ add_image_hook.names and add_image_hook.pointers stored
+ by libarclite_macosx.a, are restored so that they will be
+ reinitialized when the dumped binary is executed. */
+ my_size = (unsigned long)my_edata - sectp->addr;
+ if (!(sectp->addr <= (unsigned long)my_edata
+ && my_size <= sectp->size))
+ unexec_error ("my_edata is not in section %s", SECT_DATA);
+ if (!unexec_write (sectp->offset, (void *) sectp->addr, my_size))
unexec_error ("cannot write section %s", SECT_DATA);
+ if (!unexec_copy (sectp->offset + my_size, old_file_offset + my_size,
+ sectp->size - my_size))
+ unexec_error ("cannot copy section %s", SECT_DATA);
if (!unexec_write (header_offset, sectp, sizeof (struct section)))
unexec_error ("cannot write section %s's header", SECT_DATA);
}
@@ -1147,8 +1191,9 @@ copy_dyld_info (struct load_command *lc, long delta)
#endif
#ifdef LC_FUNCTION_STARTS
-/* Copy a LC_FUNCTION_STARTS load command from the input file to the
- output file, adjusting the data offset field. */
+/* Copy a LC_FUNCTION_STARTS/LC_DATA_IN_CODE/LC_DYLIB_CODE_SIGN_DRS
+ load command from the input file to the output file, adjusting the
+ data offset field. */
static void
copy_linkedit_data (struct load_command *lc, long delta)
{
@@ -1242,6 +1287,12 @@ dump_it (void)
#endif
#ifdef LC_FUNCTION_STARTS
case LC_FUNCTION_STARTS:
+#ifdef LC_DATA_IN_CODE
+ case LC_DATA_IN_CODE:
+#endif
+#ifdef LC_DYLIB_CODE_SIGN_DRS
+ case LC_DYLIB_CODE_SIGN_DRS:
+#endif
copy_linkedit_data (lca[i], linkedit_delta);
break;
#endif
@@ -1272,16 +1323,16 @@ unexec (const char *outfile, const char *infile)
unexec_error ("Unexec from a dumped executable is not supported.");
pagesize = getpagesize ();
- infd = open (infile, O_RDONLY, 0);
+ infd = emacs_open (infile, O_RDONLY, 0);
if (infd < 0)
{
unexec_error ("cannot open input file `%s'", infile);
}
- outfd = open (outfile, O_WRONLY | O_TRUNC | O_CREAT, 0755);
+ outfd = emacs_open (outfile, O_WRONLY | O_TRUNC | O_CREAT, 0755);
if (outfd < 0)
{
- close (infd);
+ emacs_close (infd);
unexec_error ("cannot open output file `%s'", outfile);
}
@@ -1295,7 +1346,7 @@ unexec (const char *outfile, const char *infile)
dump_it ();
- close (outfd);
+ emacs_close (outfd);
}