re PR debug/19521 (omitted stab for gcov initialization function)

        PR debug/19521
        * dbxout.c (dbxout_function_end): Take decl parameter; update callers.
        Do nothing if debug info suppressed for this function.
        (dbxout_begin_function): Early exit if debug info suppressed for
        this function.

Co-Authored-By: Stuart Hastings <stuart@apple.com>

From-SVN: r95112

gcc/ChangeLog

+2005-02-16  Richard Henderson  <rth@redhat.com>
+	    Stuart Hastings  <stuart@apple.com>
+
+	PR debug/19521
+	* dbxout.c (dbxout_function_end): Take decl parameter; update callers.
+	Do nothing if debug info suppressed for this function.
+	(dbxout_begin_function): Early exit if debug info suppressed for
+	this function.
+
 2005-02-16  Kazu Hirata  <kazu@cs.umass.edu>
 
 	PR target/20007

gcc/dbxout.c

@@ -343,7 +343,7 @@ static void dbxout_handle_pch (unsigned);
 static void dbxout_source_line (unsigned int, const char *);
 static void dbxout_begin_prologue (unsigned int, const char *);
 static void dbxout_source_file (const char *);
-static void dbxout_function_end (void);
+static void dbxout_function_end (tree);
 static void dbxout_begin_function (tree);
 static void dbxout_begin_block (unsigned, unsigned);
 static void dbxout_end_block (unsigned, unsigned);
@@ -903,10 +903,19 @@ dbxout_finish_complex_stabs (tree sym, STAB_CODE_TYPE code,
 #if defined (DBX_DEBUGGING_INFO)
 
 static void
-dbxout_function_end (void)
+dbxout_function_end (tree decl)
 {
   char lscope_label_name[100];
 
+  /* The N_FUN tag at the end of the function is a GNU extension,
+     which may be undesirable, and is unnecessary if we do not have
+     named sections.  */
+  if (!use_gnu_debug_info_extensions
+      || NO_DBX_FUNCTION_END
+      || !targetm.have_named_sections
+      || DECL_IGNORED_P (decl))
+    return;
+
   /* The Lscope label must be emitted even if we aren't doing anything
      else; dbxout_block needs it.  */
   function_section (current_function_decl);
@@ -918,14 +927,6 @@ dbxout_function_end (void)
   targetm.asm_out.internal_label (asm_out_file, "Lscope", scope_labelno);
   scope_labelno++;
 
-  /* The N_FUN tag at the end of the function is a GNU extension,
-     which may be undesirable, and is unnecessary if we do not have
-     named sections.  */
-  if (!use_gnu_debug_info_extensions
-      || NO_DBX_FUNCTION_END
-      || !targetm.have_named_sections)
-    return;
-
   /* By convention, GCC will mark the end of a function with an N_FUN
      symbol and an empty string.  */
 #ifdef DBX_OUTPUT_NFUN
@@ -1296,7 +1297,7 @@ dbxout_function_decl (tree decl)
   dbxout_begin_function (decl);
 #endif
   dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl));
-  dbxout_function_end ();
+  dbxout_function_end (decl);
 }
 
 #endif /* DBX_DEBUGGING_INFO  */
@@ -3358,7 +3359,12 @@ dbxout_block (tree block, int depth, tree args)
 static void
 dbxout_begin_function (tree decl)
 {
-  int saved_tree_used1 = TREE_USED (decl);
+  int saved_tree_used1;
+
+  if (DECL_IGNORED_P (decl))
+    return;
+
+  saved_tree_used1 = TREE_USED (decl);
   TREE_USED (decl) = 1;
   if (DECL_NAME (DECL_RESULT (decl)) != 0)
     {