Bug 50252

Summary:

Correct undefined behaviour access to out of scope pointer contents

Product:

xorg

Reporter:

Paulo César Pereira de Andrade <pcpa>

Component:

Lib/Xaw

Assignee:

Xorg Project Team <xorg-team>

Status:

RESOLVED FIXED

QA Contact:

Xorg Project Team <xorg-team>

Severity:

major

Priority:

medium

Keywords:

patch

Version:

unspecified

Hardware:

All

OS:

All

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
0001-Correct-undefined-behavior-access-to-out-of-scope-po.patch	none

Description Paulo César Pereira de Andrade 2012-05-22 16:54:51 UTC

There is a problem with libXaw that is triggered by gcc 4.7,
due to a variable set to a constant string inside a block.
  The undefined behaviour is that the string in the block is
not guaranteed to go to some constant pool with global scope.

  This patch is required for any code that uses the Xaw text
widget and is built with gcc 4.7.

Comment 1 Paulo César Pereira de Andrade 2012-05-22 16:56:10 UTC

Created attachment 61989 [details] [review]
0001-Correct-undefined-behavior-access-to-out-of-scope-po.patch

Comment 2 Alan Coopersmith 2012-05-24 18:13:59 UTC

Thanks - fix pushed to git master:
http://cgit.freedesktop.org/xorg/lib/libXaw/commit/?id=11c3a104141e1a4946ad949dfb5514df0b66a031

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