patches/gcc/4.4.6/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Aug 17 23:53:49 2011 +0200 (2011-08-17)
branch1.12
changeset 2634 e29a762bbadf
parent 2149 98b7806295cc
permissions -rw-r--r--
debug/gdb: we don't care if the host tic is shared or static

Because we need our own host tic, we have to build it; and we do build
it statically for now.

But as MacOS/Darwin/Whatever-you-call-it does not support static linking
(what a shame!), it fails.

Anyway, we don't really care it being shared, in the end.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 41bd6777fa4f767d6264db7c58986920014fd708)
     1 diff -durN gcc-4.4.5.orig/gcc/builtins.c gcc-4.4.5/gcc/builtins.c
     2 --- gcc-4.4.5.orig/gcc/builtins.c	2010-03-22 16:00:20.000000000 +0100
     3 +++ gcc-4.4.5/gcc/builtins.c	2010-10-09 22:57:58.000000000 +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-4.4.5.orig/gcc/common.opt gcc-4.4.5/gcc/common.opt
    15 --- gcc-4.4.5.orig/gcc/common.opt	2009-03-28 18:28:45.000000000 +0100
    16 +++ gcc-4.4.5/gcc/common.opt	2010-10-09 22:57:58.000000000 +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