Index: gcc/ChangeLog

2007-10-09  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (output_call_frame_info): FDEs are always emitted
	if flag_exceptions is not set.
	* config/darwin.c (darwin_emit_unwind_label): Rewrite to use
	assemble_name rather than incorrectly emulating it.

Index: gcc/testsuite/ChangeLog
2007-10-09  Geoffrey Keating  <geoffk@apple.com>

	* gcc.dg/unwind-1.c: New.

From-SVN: r129187

5 files changed, 36 insertions, 27 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7595600..cb9b878 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2007-10-09  Geoffrey Keating  <geoffk@apple.com>
 
+	* dwarf2out.c (output_call_frame_info): FDEs are always emitted
+	if flag_exceptions is not set.
+	* config/darwin.c (darwin_emit_unwind_label): Rewrite to use
+	assemble_name rather than incorrectly emulating it.
+
 	* doc/extend.texi (Deprecated Features): Mention that <? and >? and
 	friends are removed from G++.
 
diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c
index d251474..66d1ab0 100644
--- a/gcc/config/darwin.c
+++ b/gcc/config/darwin.c
@@ -1465,12 +1465,6 @@ darwin_handle_weak_import_attribute (tree *node, tree name,
   return NULL_TREE;
 }
 
-static void
-no_dead_strip (FILE *file, const char *lab)
-{
-  fprintf (file, ".no_dead_strip %s\n", lab);
-}
-
 /* Emit a label for an FDE, making it global and/or weak if appropriate.
    The third parameter is nonzero if this is for exception handling.
    The fourth parameter is nonzero if this is just a placeholder for an
@@ -1479,46 +1473,44 @@ no_dead_strip (FILE *file, const char *lab)
 void
 darwin_emit_unwind_label (FILE *file, tree decl, int for_eh, int empty)
 {
-  const char *base;
   char *lab;
-  bool need_quotes;
-
-  if (DECL_ASSEMBLER_NAME_SET_P (decl))
-    base = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
-  else
-    base = IDENTIFIER_POINTER (DECL_NAME (decl));
-
-  base = targetm.strip_name_encoding (base);
-  need_quotes = name_needs_quotes (base);
 
   if (! for_eh)
     return;
 
-  lab = concat (need_quotes ? "\"" : "", user_label_prefix, base, ".eh",
-		need_quotes ? "\"" : "", NULL);
+  lab = concat (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), ".eh", NULL);
 
   if (TREE_PUBLIC (decl))
-    fprintf (file, "\t%s %s\n",
-	     (DECL_VISIBILITY (decl) != VISIBILITY_HIDDEN
-	      ? ".globl"
-	      : ".private_extern"),
-	     lab);
+    {
+      targetm.asm_out.globalize_label (file, lab);
+      if (DECL_VISIBILITY (decl) == VISIBILITY_HIDDEN)
+	{
+	  fputs ("\t.private_extern ", file);
+	  assemble_name (file, lab);
+	  fputc ('\n', file);
+	}
+    }
 
   if (DECL_WEAK (decl))
-    fprintf (file, "\t.weak_definition %s\n", lab);
+    {
+      fputs ("\t.weak_definition ", file);
+      assemble_name (file, lab);
+      fputc ('\n', file);
+    }
 
+  assemble_name (file, lab);
   if (empty)
     {
-      fprintf (file, "%s = 0\n", lab);
+      fputs (" = 0\n", file);
 
       /* Mark the absolute .eh and .eh1 style labels as needed to
 	 ensure that we don't dead code strip them and keep such
 	 labels from another instantiation point until we can fix this
 	 properly with group comdat support.  */
-      no_dead_strip (file, lab);
+      darwin_mark_decl_preserved (lab);
     }
   else
-    fprintf (file, "%s:\n", lab);
+    fputs (":\n", file);
 
   free (lab);
 }
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index d17226e..8a398e4 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -2223,6 +2223,7 @@ output_call_frame_info (int for_eh)
      specialization doesn't.  */
   if (TARGET_USES_WEAK_UNWIND_INFO
       && ! flag_asynchronous_unwind_tables
+      && flag_exceptions
       && for_eh)
     for (i = 0; i < fde_table_in_use; i++)
       if ((fde_table[i].nothrow || fde_table[i].all_throwers_are_sibcalls)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ff8f67d..a764dfe 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2007-10-09  Geoffrey Keating  <geoffk@apple.com>
+
+	* gcc.dg/unwind-1.c: New.
+
 2007-10-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR libfortran/33683
diff --git a/gcc/testsuite/gcc.dg/unwind-1.c b/gcc/testsuite/gcc.dg/unwind-1.c
new file mode 100644
index 0000000..a24af92
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/unwind-1.c
@@ -0,0 +1,7 @@
+/* { dg-do assemble } */
+/* { dg-options "-fleading-underscore -funwind-tables" } */
+
+void func(void) __asm("_func");
+void _func(int x) {}
+void func(void) {}
+