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patches/gcc/4.4.4/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Wed Dec 05 20:31:43 2012 +0100 (2012-12-05)
changeset 3134 863723936e24
parent 1948 d341be24dc68
permissions -rw-r--r--
scripts/xldd: use user's sed and grep

xldd uses sed and grep as detected by ./configure. This works well if is
used on the machine that build the toolchain.

But if the user moves the toolchain to another machine where sed and grep
are not in the same directory (eg. /bin/sed vs. /usr/bin/sed), then xldd
will stop functionning.

Fix that by using ${SED} and ${GREP} if they are set in the environment.

Reported-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.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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