patches/gcc/4.3.3/110-trampolinewarn.patch
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Mon Apr 16 15:25:36 2012 +0200 (2012-04-16)
changeset 2941 13e40098fffc
permissions -rw-r--r--
cc/gcc: update Linaro GCC revisions to 2012.04

Update Linaro GCC with the latest available revisions.

The 4.7 revision is also released, but the infrastructure is not yet ready for
it in CT-NG.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
     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