* dwarf2out.c (new_die): Use xcalloc.

        (output_die): Abort rather than emit a local reference to offset 0.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@39201 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 12ba67d..59047cb 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-01-23  Jason Merrill  <jason@redhat.com>
+
+       * dwarf2out.c (new_die): Use xcalloc.
+       (output_die): Abort rather than emit a local reference to offset 0.
+
 2001-01-17  Andrew Haley  <aph@redhat.com>
 
        * libgcc2.c (get_reg_addr): Don't abort if we haven't got a copy

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index d311dbb..a3c0e1f 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -4817,16 +4817,9 @@ new_die (tag_value, parent_die)
      register enum dwarf_tag tag_value;
      register dw_die_ref parent_die;
 {
-  register dw_die_ref die = (dw_die_ref) xmalloc (sizeof (die_node));
+  register dw_die_ref die = (dw_die_ref) xcalloc (1, sizeof (die_node));
 
   die->die_tag = tag_value;
-  die->die_abbrev = 0;
-  die->die_offset = 0;
-  die->die_child = NULL;
-  die->die_parent = NULL;
-  die->die_sib = NULL;
-  die->die_attr = NULL;
-  die->die_symbol = NULL;
 
   if (parent_die != NULL)
     add_child_die (parent_die, die);
@@ -6060,6 +6053,8 @@ output_die (die)
        case dw_val_class_die_ref:
          if (AT_ref_external (a))
            output_symbolic_ref (AT_ref (a));
+         else if (AT_ref (a)->die_offset == 0)
+           abort ();
          else
            ASM_OUTPUT_DWARF_DATA (asm_out_file, AT_ref (a)->die_offset);
          break;