* readelf.c (display_debug_frames): Don't crash for mismatched

        DW_CFA_restore_state.

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 33cb219..2e41bc8 100644 (file)
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-21  Richard Henderson  <rth@redhat.com>
+
+       * readelf.c (display_debug_frames): Don't crash for mismatched
+       DW_CFA_restore_state.
+
 2004-03-19  Alan Modra  <amodra@bigpond.net.au>
 
        * Makefile.am: Run "make dep-am".

diff --git a/binutils/readelf.c b/binutils/readelf.c
index ddbf781..3561eff 100644 (file)
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -9150,13 +9150,19 @@ display_debug_frames (Elf_Internal_Shdr *section,
              if (! do_debug_frames_interp)
                printf ("  DW_CFA_restore_state\n");
              rs = remembered_state;
-             remembered_state = rs->next;
-             frame_need_space (fc, rs->ncols-1);
-             memcpy (fc->col_type, rs->col_type, rs->ncols);
-             memcpy (fc->col_offset, rs->col_offset, rs->ncols * sizeof (int));
-             free (rs->col_type);
-             free (rs->col_offset);
-             free (rs);
+             if (rs)
+               {
+                 remembered_state = rs->next;
+                 frame_need_space (fc, rs->ncols-1);
+                 memcpy (fc->col_type, rs->col_type, rs->ncols);
+                 memcpy (fc->col_offset, rs->col_offset,
+                         rs->ncols * sizeof (int));
+                 free (rs->col_type);
+                 free (rs->col_offset);
+                 free (rs);
+               }
+             else if (do_debug_frames_interp)
+               printf ("Mismatched DW_CFA_restore_state\n");
              break;
 
            case DW_CFA_def_cfa: