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patches/gcc/4.3.5/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu Dec 23 20:43:32 2010 +0100 (2010-12-23)
changeset 2307 2efd46963086
parent 1461 35b30f8fb307
permissions -rw-r--r--
buildtools: move to working directory

There is absolutely *no* reason for the buildtools (wrappers to gcc, g++,
as, ld... for the local machine) to be in the toolchain directory. Moreover,
they are removed after the build completes.

Move them out of the toolchain directory, and into the build directory (but
yet the part specific to the current toolchain). This means we no longer
need to explicitly remove them either, BTW, but we need to save/restore them
for the restart feature.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from: ../4.3.2/110-trampolinewarn.patch

     2 

     3 -= BEGIN original header =-

     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch

     5 	This trivial patch causes gcc to emit a warning whenever

     6 	it generates a trampoline.  These are otherwise hard to

     7 	locate.  It is rigged to default ON - to have it default

     8 	to OFF remove the text 'Init(1)' from the common.opt

     9 	patch, leaving just 'Common Var(warn_trampolines)'.

    10 	Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006

    11 

    12 -= END original header =-

    13 

    14 diff -durN gcc-4.3.3.orig/gcc/builtins.c gcc-4.3.3/gcc/builtins.c

    15 --- gcc-4.3.3.orig/gcc/builtins.c	2008-08-19 18:37:13.000000000 +0200

    16 +++ gcc-4.3.3/gcc/builtins.c	2009-01-27 22:19:12.000000000 +0100

    17 @@ -5662,6 +5662,9 @@

    18    trampolines_created = 1;

    19    INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);

    20  

    21 +  if (warn_trampolines)

    22 +    warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");

    23 +

    24    return const0_rtx;

    25  }

    26  

    27 diff -durN gcc-4.3.3.orig/gcc/common.opt gcc-4.3.3/gcc/common.opt

    28 --- gcc-4.3.3.orig/gcc/common.opt	2008-01-22 15:11:44.000000000 +0100

    29 +++ gcc-4.3.3/gcc/common.opt	2009-01-27 22:19:12.000000000 +0100

    30 @@ -182,6 +182,10 @@

    31  Common Var(warn_system_headers) Warning

    32  Do not suppress warnings from system headers

    33  

    34 +Wtrampolines

    35 +Common Var(warn_trampolines) Init(1)

    36 +Warn whenever a trampoline is generated

    37 +

    38  Wuninitialized

    39  Common Var(warn_uninitialized) Warning

    40  Warn about uninitialized automatic variables
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