* unexmacosx.c (copy_data_segment): Copy initialized data in statically linked libraries from input file rather than memory.

2 files changed, 22 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index eac08d19da4..963179cb08f 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2012-08-08  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
+
+        * unexmacosx.c (copy_data_segment): Copy initialized data in
+        statically linked libraries from input file rather than memory.
+
 2012-08-07  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
 
         * unexmacosx.c (print_load_command_name): Add cases LC_MAIN,
diff --git a/src/unexmacosx.c b/src/unexmacosx.c
index 8661ee4be1b..b2b7c5f8e90 100644
--- a/src/unexmacosx.c
+++ b/src/unexmacosx.c
@@ -815,8 +815,24 @@ 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);
         }