概要

gcc bug fix update

タイプ/重大度

Bug Fix Advisory

トピック

Updated gcc packages that fix several bugs are now available for Red Hat
Enterprise Linux 5.

説明

The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and
Ada 95 GNU, as well as related support libraries.

This update fixes the following bugs:

• GCC was missing a lazy declaration of a class type destructor in the
  locate_dtor function in the method implementation. As a consequence, exception
  handling did not work as expected under certain circumstances and the generated
  code could terminate unexpectedly. This update adds the missing destructor
  declaration and the problem no longer occurs. (BZ#750545)
  
• Previously, GCC did not correctly handle processor registers and used an
  incorrect memory operand when processing the CMPXCHG8B instruction. As a
  consequence, the compiler generated erroneous code if the "-fPIC" option was
  used. This update modifies the underlying source code so that GCC now handles
  memory operands correctly and compiles position-independent code with the "fPIC"
  option as expected. (BZ#760417)
  
• GCC previously used incorrect flags for IBM System z specific options, such as
  "-m31", "-m64", "-mesa", "-mzarch", "-msoft-float", "-mhard-float",
  "-mlong-double-64" and "-mlong-double-128". As a consequence, when compiling
  code with any of these options, GCC did not recognize the option and the command
  failed. With this update, negative flags are now used for these options and code
  can be compiled successfully in this scenario. (BZ#797938)
  
• GCC did not, under rare circumstances, handle exceptions properly when GCC 4.1
  libstdc++ was used with GCC 4.4 or later C++11 code. This update improves
  exception handling so that GCC now processes exceptions as expected when using
  GCC 4.4 or later to compile code written in C++11. (BZ#806275)
  

All users of gcc are advised to upgrade to these updated packages, which fix
these bugs.

解決法

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

影響を受ける製品

• 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

修正

(none)

CVE

(none)

参考資料

(none)

Red Hat Enterprise Linux Server 5

SRPM
x86_64
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
ia64
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
i386
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
i386
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8

Red Hat Enterprise Linux Desktop 5

SRPM
x86_64
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
i386
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8
i386
gcc-debuginfo-4.1.2-54.el5.i386.rpm	SHA-256: 47bef4de16d9d009ce9f261731f3ccfaa7c8770329dc5ee9e0a43e9bdf240ab8