Merge from emacs-23 branch

[bpt/emacs.git] / src / unexmacosx.c

diff --git a/src/unexmacosx.c b/src/unexmacosx.c
index 5c450e0..0751eea 100644 (file)
--- a/src/unexmacosx.c
+++ b/src/unexmacosx.c
@@ -1,6 +1,5 @@
 /* Dump Emacs in Mach-O format for use on Mac OS X.
-   Copyright (C) 2001, 2002, 2003, 2004, 2005,
-                 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2001-2011 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -86,8 +85,20 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    be changed accordingly.
 */
 
-#include <stdio.h>
+/* config.h #define:s malloc/realloc/free and then includes stdlib.h.
+   We want the undefined versions, but if config.h includes stdlib.h
+   with the #define:s in place, the prototypes will be wrong and we get
+   warnings.  To prevent that, include stdlib.h before config.h.  */
+
 #include <stdlib.h>
+#include <config.h>
+#undef malloc
+#undef realloc
+#undef free
+
+#include "unexec.h"
+
+#include <stdio.h>
 #include <fcntl.h>
 #include <stdarg.h>
 #include <sys/types.h>
@@ -98,10 +109,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #if defined (__ppc__)
 #include <mach-o/ppc/reloc.h>
 #endif
-#include <config.h>
-#undef malloc
-#undef realloc
-#undef free
 #ifdef HAVE_MALLOC_MALLOC_H
 #include <malloc/malloc.h>
 #else
@@ -190,6 +197,8 @@ static off_t data_segment_old_fileoff = 0;
 
 static struct segment_command *data_segment_scp;
 
+static void unexec_error (const char *format, ...) NO_RETURN;
+
 /* Read N bytes from infd into memory starting at address DEST.
    Return true if successful, false otherwise.  */
 static int
@@ -589,6 +598,16 @@ print_load_command_name (int lc)
     case LC_DYLD_INFO_ONLY:
       printf ("LC_DYLD_INFO_ONLY");
       break;
+#endif
+#ifdef LC_VERSION_MIN_MACOSX
+    case LC_VERSION_MIN_MACOSX:
+      printf ("LC_VERSION_MIN_MACOSX");
+      break;
+#endif
+#ifdef LC_FUNCTION_STARTS
+    case LC_FUNCTION_STARTS:
+      printf ("LC_FUNCTION_STARTS");
+      break;
 #endif
     default:
       printf ("unknown          ");
@@ -822,6 +841,7 @@ copy_data_segment (struct load_command *lc)
        }
       else if (strncmp (sectp->sectname, "__la_symbol_ptr", 16) == 0
               || strncmp (sectp->sectname, "__nl_symbol_ptr", 16) == 0
+              || strncmp (sectp->sectname, "__got", 16) == 0
               || strncmp (sectp->sectname, "__la_sym_ptr2", 16) == 0
               || strncmp (sectp->sectname, "__dyld", 16) == 0
               || strncmp (sectp->sectname, "__const", 16) == 0
@@ -1125,6 +1145,28 @@ 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.  */
+static void
+copy_linkedit_data (struct load_command *lc, long delta)
+{
+  struct linkedit_data_command *ldp = (struct linkedit_data_command *) lc;
+
+  if (ldp->dataoff > 0)
+    ldp->dataoff += delta;
+
+  printf ("Writing ");
+  print_load_command_name (lc->cmd);
+  printf (" command\n");
+
+  if (!unexec_write (curr_header_offset, lc, lc->cmdsize))
+    unexec_error ("cannot write linkedit data command to header");
+
+  curr_header_offset += lc->cmdsize;
+}
+#endif
+
 /* Copy other kinds of load commands from the input file to the output
    file, ones that do not require adjustments of file offsets.  */
 static void
@@ -1196,6 +1238,11 @@ dump_it (void)
       case LC_DYLD_INFO_ONLY:
        copy_dyld_info (lca[i], linkedit_delta);
        break;
+#endif
+#ifdef LC_FUNCTION_STARTS
+      case LC_FUNCTION_STARTS:
+       copy_linkedit_data (lca[i], linkedit_delta);
+       break;
 #endif
       default:
        copy_other (lca[i]);
@@ -1218,8 +1265,7 @@ dump_it (void)
    and infile, respectively.  The three other parameters are
    ignored.  */
 void
-unexec (char *outfile, char *infile, void *start_data, void *start_bss,
-        void *entry_address)
+unexec (const char *outfile, const char *infile)
 {
   if (in_dumped_exec)
     unexec_error ("Unexec from a dumped executable is not supported.");
@@ -1373,6 +1419,3 @@ unexec_free (void *ptr)
   else
     malloc_zone_free (emacs_zone, (unexec_malloc_header_t *) ptr - 1);
 }
-
-/* arch-tag: 1a784f7b-a184-4c4f-9544-da8619593d72
-   (do not change this comment) */