Red Hat ENTERPRISE LINUX 5.5 - S 2010, Руководство пользователя

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Chapter 1. Package Updates
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are flagged accordingly to prevent gcc from prematurely discarding needed debug information.
(
BZ#513184
400
)
* when issuing multiple -fno-builtin-* switches to gcc, gcc only registered the last switch. With this
release, gcc can now register multiple -fno-builtin-* switches correctly. (
BZ#515799
401
)
* in some cases, aggregates returned by value could cause reload failures in the caller function,
resulting in an internal compiler error. This was caused by a bug in the combining code that incorrectly
lengthens the lifetime of a hard register. This update applies a patch to expand_call function in gcc/
calls.c that resolves the issue. (
BZ#516028
402
)
* using g++ to compile code containing virtual inheritances could result in a segmentation fault.
This was because the dynamic_cast code in gcc did not use src2dst hints as expected; as a result,
g++ could search an unnecessarily large address list for possible bases. With this release, the
dynamic_cast code now uses src2dst hints; this allows g++ to defer searching bases that don't overlap
with a virtual inheritance's address. (
BZ#519519
403
)
* On PowerPC, it was possible for DWARF access to function parameters to fail. This was caused
by a bug in the GCC instruction set for PowerPC, where compiling with -mno-sched-prolog could
discard debug location lists. This update fixes the bug, ensuring consistent DWARF access to function
parameters on PowerPC. (
BZ#528792
404
)
* The libgcc undwinder now supports DW_OP_swap handling. This update also fixes bugs
in the way unwinding code handled unwind information from DW_OP_{gt,ge,lt,le} and
DW_CFA_{remember,restore}_state. (
BZ#555731
405
)
All GCC users are advised to install this update.
1.59. gd
1.59.1. RHSA-2010:0003: Moderate security update
Important
This update has already been released (prior to the GA of this release) as the security
errata
RHSA-2010:0003
406
Updated gd packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5.
This update has been rated as having moderate security impact by the Red Hat Security Response
Team.
The gd packages provide a graphics library used for the dynamic creation of images, such as PNG
and JPEG.
400
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=513184
401
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=515799
402
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=516028
403
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=519519
404
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=528792
405
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=555731