thomas@1461: Original patch from: ../4.3.2/110-trampolinewarn.patch
thomas@1461: 
thomas@1461: -= BEGIN original header =-
thomas@1461: Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch
thomas@1461: 	This trivial patch causes gcc to emit a warning whenever
thomas@1461: 	it generates a trampoline.  These are otherwise hard to
thomas@1461: 	locate.  It is rigged to default ON - to have it default
thomas@1461: 	to OFF remove the text 'Init(1)' from the common.opt
thomas@1461: 	patch, leaving just 'Common Var(warn_trampolines)'.
thomas@1461: 	Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006
thomas@1461: 
thomas@1461: -= END original header =-
thomas@1461: 
thomas@1461: diff -durN gcc-4.3.3.orig/gcc/builtins.c gcc-4.3.3/gcc/builtins.c
thomas@1461: --- gcc-4.3.3.orig/gcc/builtins.c	2008-08-19 18:37:13.000000000 +0200
thomas@1461: +++ gcc-4.3.3/gcc/builtins.c	2009-01-27 22:19:12.000000000 +0100
thomas@1461: @@ -5662,6 +5662,9 @@
thomas@1461:    trampolines_created = 1;
thomas@1461:    INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
thomas@1461:  
thomas@1461: +  if (warn_trampolines)
thomas@1461: +    warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
thomas@1461: +
thomas@1461:    return const0_rtx;
thomas@1461:  }
thomas@1461:  
thomas@1461: diff -durN gcc-4.3.3.orig/gcc/common.opt gcc-4.3.3/gcc/common.opt
thomas@1461: --- gcc-4.3.3.orig/gcc/common.opt	2008-01-22 15:11:44.000000000 +0100
thomas@1461: +++ gcc-4.3.3/gcc/common.opt	2009-01-27 22:19:12.000000000 +0100
thomas@1461: @@ -182,6 +182,10 @@
thomas@1461:  Common Var(warn_system_headers) Warning
thomas@1461:  Do not suppress warnings from system headers
thomas@1461:  
thomas@1461: +Wtrampolines
thomas@1461: +Common Var(warn_trampolines) Init(1)
thomas@1461: +Warn whenever a trampoline is generated
thomas@1461: +
thomas@1461:  Wuninitialized
thomas@1461:  Common Var(warn_uninitialized) Warning
thomas@1461:  Warn about uninitialized automatic variables