yann@1162: Original patch from: ../4.3.2/110-trampolinewarn.patch
yann@1162: 
yann@1162: -= BEGIN original header =-
yann@1162: Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch
yann@1162: 	This trivial patch causes gcc to emit a warning whenever
yann@1162: 	it generates a trampoline.  These are otherwise hard to
yann@1162: 	locate.  It is rigged to default ON - to have it default
yann@1162: 	to OFF remove the text 'Init(1)' from the common.opt
yann@1162: 	patch, leaving just 'Common Var(warn_trampolines)'.
yann@1162: 	Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006
yann@1162: 
yann@1162: -= END original header =-
yann@1162: 
yann@1162: diff -durN gcc-4.3.3.orig/gcc/builtins.c gcc-4.3.3/gcc/builtins.c
yann@1162: --- gcc-4.3.3.orig/gcc/builtins.c	2008-08-19 18:37:13.000000000 +0200
yann@1162: +++ gcc-4.3.3/gcc/builtins.c	2009-01-27 22:19:12.000000000 +0100
yann@1162: @@ -5662,6 +5662,9 @@
yann@1162:    trampolines_created = 1;
yann@1162:    INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
yann@1162:  
yann@1162: +  if (warn_trampolines)
yann@1162: +    warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
yann@1162: +
yann@1162:    return const0_rtx;
yann@1162:  }
yann@1162:  
yann@1162: diff -durN gcc-4.3.3.orig/gcc/common.opt gcc-4.3.3/gcc/common.opt
yann@1162: --- gcc-4.3.3.orig/gcc/common.opt	2008-01-22 15:11:44.000000000 +0100
yann@1162: +++ gcc-4.3.3/gcc/common.opt	2009-01-27 22:19:12.000000000 +0100
yann@1162: @@ -182,6 +182,10 @@
yann@1162:  Common Var(warn_system_headers) Warning
yann@1162:  Do not suppress warnings from system headers
yann@1162:  
yann@1162: +Wtrampolines
yann@1162: +Common Var(warn_trampolines) Init(1)
yann@1162: +Warn whenever a trampoline is generated
yann@1162: +
yann@1162:  Wuninitialized
yann@1162:  Common Var(warn_uninitialized) Warning
yann@1162:  Warn about uninitialized automatic variables