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patches/glibc/2.9/150-regex-BZ697.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 1201 c9967a6e3b25
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

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;
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