RHBA-2013:0030 - Bug Fix Advisory

Topic

Updated gcc44 packages that fix several bugs and add various enhancements are
now available for Red Hat Enterprise Linux 5.

Description

The gcc44 packages provide the GNU Compiler Collection (GCC), which includes GNU
compilers and related support libraries for C, C++, and Fortran programming
languages. These packages also include libgomp, the GNU implementation of the
OpenMP Application Programming Interface for multi-platform shared-memory
parallel programming.

The gcc44 packages have been upgraded to upstream version 4.4.7, which provides
a number of bug fixes and enhancements over the previous version. Among others,
this update fixes bugs causing GCC internal errors when compiling code with the
"-O2" and "-O3" optimization options. Also, support for the OpenMP API version
3.1 has been added to libgomp to ensure compatibility with future GCC releases.
(BZ#813708)

Additionally, this update fixes the following bugs:

• Previous version of gcc44 incorrectly stated that the gcc44 package includes a

technical preview of GCC version 4.4. The package description has been corrected
and no longer claims to provide the technical preview of GCC version 4.4.
(BZ#815207)

• Due to misplaced space characters in the x86 architecture driver, the "-mxop",

"-mfma4", "-mbmi" and "-mtbm" compiler options were concatenated incorrectly
when compiling code with gcc44. Consequently, compilation failed with an
"unrecognized command line option" error. This update fixes space characters
position and the options are concatenated correctly. Code is now compiled
successfully with these options. (BZ#784360)

Furthermore, this update adds the following enhancement:

• G++ previously assumed that a value of enumeration type is always in the range

specified by the C++ standard. Consequently, if a program converted an arbitrary
integer value to the enumeration type, the code compiled with the "-fPIC -O2" or
"-fPIC -O3" options could terminate unexpectedly. With this update, the
underlying code has been modified to no longer assume strict evaluation of
enumeration type. The old functionality can be turned on by specifying the
"fstrict-enums" option. (BZ#556962)

All users of gcc44 are advised to upgrade to these updated packages, which fix
these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 556962 - g++44 code crashes when compiled with -O2 -fPIC and -O3 -fPIC
• BZ - 784360 - Bug concatenates compiler options

CVEs

(none)

References

(none)