patches/glibc/2.9/150-regex-BZ697.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
parent 1201 c9967a6e3b25
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/0053_all_glibc-2.9-regex-BZ697.patch
     2 
     3 -= BEGIN original header =-
     4 http://sourceware.org/ml/libc-alpha/2009-01/msg00006.html
     5 
     6 From 37bdc055ceeb6b1144c07448a7210d9ab3fbb2f5 Mon Sep 17 00:00:00 2001
     7 From: Ulrich Drepper <drepper@redhat.com>
     8 Date: Thu, 8 Jan 2009 00:47:05 +0000
     9 Subject: [PATCH] (prune_impossible_nodes): Handle sifted_states[0] being NULL also if
    10  there are no backreferences.
    11 
    12 -= END original header =-
    13 
    14 diff -durN glibc-2_9.orig/posix/regexec.c glibc-2_9/posix/regexec.c
    15 --- glibc-2_9.orig/posix/regexec.c	2007-10-12 19:47:13.000000000 +0200
    16 +++ glibc-2_9/posix/regexec.c	2009-02-02 22:00:43.000000000 +0100
    17 @@ -1004,6 +1004,11 @@
    18        re_node_set_free (&sctx.limits);
    19        if (BE (ret != REG_NOERROR, 0))
    20  	goto free_return;
    21 +      if (sifted_states[0] == NULL)
    22 +	{
    23 +	  ret = REG_NOMATCH;
    24 +	  goto free_return;
    25 +	}
    26      }
    27    re_free (mctx->state_log);
    28    mctx->state_log = sifted_states;