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patches/gcc/4.3.2/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu Jun 11 21:47:19 2009 +0000 (2009-06-11)
branch1.4
changeset 1451 25d050084e98
parent 747 d3e603e7c17c
permissions -rw-r--r--
populate: fix installing dynamic linker 'ld.so'

The dynamic linker, ld.so, needs the execute bit to be set.
Detect tht the library being installed is in fact ld.so and
install it with 0755 instead of 0644.

Fix detecting src == dst.

Use a simpler command to copy src -> dst.

Also change echo to printf, get rid of 'echo -n', which is
highly non-portable.


-------- diffstat follows --------
/trunk/scripts/populate.in | 76 43 33 0 +++++++++++++++++++++++++++++-----------------------
1 file changed, 43 insertions(+), 33 deletions(-)
(transplanted from d7ddcb75e0f703e2ba6d17169167356389224870) 
     1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch

     2 	This trivial patch causes gcc to emit a warning whenever

     3 	it generates a trampoline.  These are otherwise hard to

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

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

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

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

     8 

     9 diff -durN gcc-4.3.1.orig/gcc/builtins.c gcc-4.3.1/gcc/builtins.c

    10 --- gcc-4.3.1.orig/gcc/builtins.c	2008-04-23 00:36:27.000000000 +0200

    11 +++ gcc-4.3.1/gcc/builtins.c	2008-06-10 14:56:54.000000000 +0200

    12 @@ -5662,6 +5662,9 @@

    13    trampolines_created = 1;

    14    INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);

    15  

    16 +  if (warn_trampolines)

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

    18 +

    19    return const0_rtx;

    20  }

    21  

    22 diff -durN gcc-4.3.1.orig/gcc/common.opt gcc-4.3.1/gcc/common.opt

    23 --- gcc-4.3.1.orig/gcc/common.opt	2008-01-22 15:11:44.000000000 +0100

    24 +++ gcc-4.3.1/gcc/common.opt	2008-06-10 14:56:54.000000000 +0200

    25 @@ -182,6 +182,10 @@

    26  Common Var(warn_system_headers) Warning

    27  Do not suppress warnings from system headers

    28  

    29 +Wtrampolines

    30 +Common Var(warn_trampolines) Init(1)

    31 +Warn whenever a trampoline is generated

    32 +

    33  Wuninitialized

    34  Common Var(warn_uninitialized) Warning

    35  Warn about uninitialized automatic variables
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