x

From-SVN: r14390

gcc/config/i386/i386.h

@@ -2363,6 +2363,9 @@ number as al, and ax.
 /* PC is dbx register 8; let's use that column for RA. */
 #define DWARF_FRAME_RETURN_COLUMN 	8
 
+/* Before the prologue, the top of the frame is at 4(%esp).  */
+#define INCOMING_FRAME_SP_OFFSET 4
+
 /* This is how to output the definition of a user-level label named NAME,
    such as the label on a static function or variable NAME.  */
 

gcc/defaults.h

@@ -133,3 +133,9 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
 #define SUPPORTS_WEAK 0
 #endif
 #endif
+
+/* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that
+   the rest of the DWARF 2 frame unwind support is also provided.  */
+#ifdef INCOMING_RETURN_ADDR_RTX
+#define DWARF2_UNWIND_INFO
+#endif

gcc/final.c

@@ -1262,7 +1262,8 @@ final (first, file, optimize, prescan)
   new_block = 1;
 
 #if defined (DWARF2_DEBUGGING_INFO) && defined (HAVE_prologue)
-  dwarf2out_frame_debug (NULL_RTX);
+  if (write_symbols == DWARF2_DEBUG)
+    dwarf2out_frame_debug (NULL_RTX);
 #endif
 
   check_exception_handler_labels ();