invoke.texi (Warning Options): Add new option -Wframe-larger-than=.

gcc/ChangeLog:

2008-02-20  Seongbae Park <seongbae.park@gmail.com>

	* doc/invoke.texi (Warning Options): Add new option
	-Wframe-larger-than=.
	(-Wframe-larger-than): Document.

	* flags.h (warn_frame_larger_than, frame_larger_than_size):
	Add declarations for new option variables.

	* final.c (final_start_function): Check the frame size
	before emission and issue a Wframe-larger-than warning.

	* opts.c (warn_frame_larger_than, frame_larger_than_size):
	Add definitions for new option variables.
	(common_handle_option): Handle new option OPT_Wframe_larger_than_.

	* common.opt (Wframe-larger-than=): New option.

gcc/testsuite/ChangeLog:

2008-02-20  Seongbae Park <seongbae.park@gmail.com>

	* gcc.dg/Wframe-larger-than.c: New option test.

From-SVN: r132496

1 files changed, 10 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 96643ef..8b8a1a9 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -58,6 +58,11 @@ bool extra_warnings;
 bool warn_larger_than;
 HOST_WIDE_INT larger_than_size;
 
+/* True to warn about any function whose frame size is larger
+ * than N bytes. */
+bool warn_frame_larger_than;
+HOST_WIDE_INT frame_larger_than_size;
+
 /* Hack for cooperation between set_Wunused and set_Wextra.  */
 static bool maybe_warn_unused_parameter;
 
@@ -1498,6 +1503,11 @@ common_handle_option (size_t scode, const char *arg, int value,
       warn_larger_than = value != -1;
       break;
 
+    case OPT_Wframe_larger_than_:
+      frame_larger_than_size = value;
+      warn_frame_larger_than = value != -1;
+      break;
+
     case OPT_Wstrict_aliasing:
       set_Wstrict_aliasing (value);
       break;