1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/patches/gcc/4.3.1/110-trampolinewarn.patch Tue Oct 30 00:30:47 2012 +0100
1.3 @@ -0,0 +1,35 @@
1.4 +Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch
1.5 + This trivial patch causes gcc to emit a warning whenever
1.6 + it generates a trampoline. These are otherwise hard to
1.7 + locate. It is rigged to default ON - to have it default
1.8 + to OFF remove the text 'Init(1)' from the common.opt
1.9 + patch, leaving just 'Common Var(warn_trampolines)'.
1.10 + Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006
1.11 +
1.12 +diff -durN gcc-4.3.1.orig/gcc/builtins.c gcc-4.3.1/gcc/builtins.c
1.13 +--- gcc-4.3.1.orig/gcc/builtins.c 2008-04-23 00:36:27.000000000 +0200
1.14 ++++ gcc-4.3.1/gcc/builtins.c 2008-06-10 14:56:54.000000000 +0200
1.15 +@@ -5662,6 +5662,9 @@
1.16 + trampolines_created = 1;
1.17 + INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
1.18 +
1.19 ++ if (warn_trampolines)
1.20 ++ warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
1.21 ++
1.22 + return const0_rtx;
1.23 + }
1.24 +
1.25 +diff -durN gcc-4.3.1.orig/gcc/common.opt gcc-4.3.1/gcc/common.opt
1.26 +--- gcc-4.3.1.orig/gcc/common.opt 2008-01-22 15:11:44.000000000 +0100
1.27 ++++ gcc-4.3.1/gcc/common.opt 2008-06-10 14:56:54.000000000 +0200
1.28 +@@ -182,6 +182,10 @@
1.29 + Common Var(warn_system_headers) Warning
1.30 + Do not suppress warnings from system headers
1.31 +
1.32 ++Wtrampolines
1.33 ++Common Var(warn_trampolines) Init(1)
1.34 ++Warn whenever a trampoline is generated
1.35 ++
1.36 + Wuninitialized
1.37 + Common Var(warn_uninitialized) Warning
1.38 + Warn about uninitialized automatic variables