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patches/gcc/4.3.3/110-trampolinewarn.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Dec 30 15:36:22 2009 +0100 (2009-12-30)
changeset 1669 61edd9d19e3c
permissions -rw-r--r--
scripts/functions: add aria2, a powerfull downloader

aria2 is a powerfull downloader that is capable of chunking and
parallel retrieval.

Due to li;itations in crosstool-NG retrieval facilities, it's not possible
to take fully advantage of aria2. It might happen that, in the future,
those limitations get lifted away, so we can take use features such as
parallel downloading from more than one server at the same time. For now,
it should still speed up downloads thanks to parallel downloading of chunks. 
     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
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