[patch] Tidier patch to add -Wtrampolines; replacement for 00_all_gcc-trampolinewarn.patch

gcc-4.1.0-trampolinewarn.patch (text/plain), 1.07 KB, created by Kevin F. Quinn (RETIRED) on 2006-03-15 23:41:46 UTC

	This trivial patch causes gcc to emit a warning whenever
	it generates a trampoline.  These are otherwise hard to
	locate.  It is rigged to default ON - to have it default
	to OFF remove the text 'Init(1)' from the common.opt
	patch, leaving just 'Common Var(warn_trampolines)'.
	Kevin F. Quinn <[e-mail]> 17 Jan 2006

--- gcc/builtins.c.orig	2006-01-17 12:00:38.000000000 +0100
+++ gcc/builtins.c	2006-01-17 12:01:37.000000000 +0100
@@ -5225,6 +5225,9 @@
   trampolines_created = 1;
   INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
 
+  if (warn_trampolines)
+    warning (0, "generating trampolines in object (requires executable stack)");
+
   return const0_rtx;
 }
 
--- gcc/common.opt.orig	2006-01-17 12:17:36.000000000 +0100
+++ gcc/common.opt	2006-01-17 12:24:32.000000000 +0100
@@ -141,6 +141,10 @@
 Common Var(warn_system_headers)
 Do not suppress warnings from system headers
 
+Wtrampolines
+Common Var(warn_trampolines) Init(1)
+Warn whenever a trampoline is generated
+
 Wuninitialized
 Common Var(warn_uninitialized)
 Warn about uninitialized automatic variables