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patches/gcc/4.4.4/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 17:56:22 2011 +0200 (2011-07-17)
changeset 2889 f3b2199620f1
parent 1948 d341be24dc68
permissions -rw-r--r--
cc/gcc: pass the install prefix to the core passes

Currently, the discrimination on the core compilers prefixes depends on
the type of core compiler to build.

This is not correct, and the caller of the core backend should specify
the prefix.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 diff -durN gcc-4.4.4.orig/gcc/builtins.c gcc-4.4.4/gcc/builtins.c

     2 --- gcc-4.4.4.orig/gcc/builtins.c	2010-03-22 16:00:20.000000000 +0100

     3 +++ gcc-4.4.4/gcc/builtins.c	2010-05-16 19:10:34.000000000 +0200

     4 @@ -5783,6 +5783,9 @@

     5    trampolines_created = 1;

     6    INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);

     7  

     8 +  if (warn_trampolines)

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

    10 +

    11    return const0_rtx;

    12  }

    13  

    14 diff -durN gcc-4.4.4.orig/gcc/common.opt gcc-4.4.4/gcc/common.opt

    15 --- gcc-4.4.4.orig/gcc/common.opt	2009-03-28 18:28:45.000000000 +0100

    16 +++ gcc-4.4.4/gcc/common.opt	2010-05-16 19:10:34.000000000 +0200

    17 @@ -197,6 +197,10 @@

    18  Common Var(warn_type_limits) Init(-1) Warning

    19  Warn if a comparison is always true or always false due to the limited range of the data type

    20  

    21 +Wtrampolines

    22 +Common Var(warn_trampolines) Init(1)

    23 +Warn whenever a trampoline is generated

    24 +

    25  Wuninitialized

    26  Common Var(warn_uninitialized) Warning

    27  Warn about uninitialized automatic variables
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