Rebase to FSF GDB 7.5.1 (7.5 stable branch).
This commit is contained in:
Jan Kratochvil
parent
92b52c5e6f
commit
54956de3d3
2
.gitignore
vendored
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.gitignore
vendored
@ -1,2 +1,2 @@
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/gdb-libstdc++-v3-python-r155978.tar.bz2
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/gdb-7.5.0.20120926.tar.bz2
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/gdb-7.5.1.tar.bz2
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@ -1,160 +0,0 @@
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http://sourceware.org/ml/gdb-patches/2012-09/msg00598.html
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Subject: [patch+7.5] Fix ppc32 7.5 stepping crash regression
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Hello,
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since
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[PATCH] PowerPC 32 with Secure PLT
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http://sourceware.org/ml/gdb-patches/2012-01/msg00655.html
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http://sourceware.org/ml/gdb-patches/2012-01/msg00656.html
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commit 4d19ed66762845cdcce95f8b1daaceb97cf90c71
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Author: eager <eager>
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Date: Mon Jan 30 17:09:37 2012 +0000
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Support stepping through PPC PLT with securePLT.
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(gdb) step
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Single stepping until exit from function main,
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which has no line number information.
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Program received signal SIGSEGV, Segmentation fault.
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0x00000000100898d8 in powerpc_linux_in_dynsym_resolve_code (pc=268436636) at ppc-linux-tdep.c:651
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651 if ((strcmp (SYMBOL_LINKAGE_NAME (sym), "__glink") == 0)
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(gdb) p sym
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$1 = (struct minimal_symbol *) 0x0
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(gdb) bt
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#0 0x00000000100898d8 in powerpc_linux_in_dynsym_resolve_code (pc=268436636) at ppc-linux-tdep.c:651
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#1 0x00000000103fdf44 in in_solib_dynsym_resolve_code (pc=268436636) at solib.c:1185
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#2 0x000000001025d848 in handle_inferior_event (ecs=0xfffffbbdcf0) at infrun.c:4737
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[...]
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I will check it in.
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Not regression tested.
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Regards,
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Jan
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gdb/
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2012-09-26 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix crash during stepping on ppc32.
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* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Test NULL
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SYM.
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gdb/testsuite/
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2012-09-26 Jan Kratochvil <jan.kratochvil@redhat.com>
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Fix crash during stepping on ppc32.
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* gdb.base/step-symless.c: New file.
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* gdb.base/step-symless.exp: New file.
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diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
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index c7b70db..ccded83 100644
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--- a/gdb/ppc-linux-tdep.c
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+++ b/gdb/ppc-linux-tdep.c
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@@ -648,8 +648,9 @@ powerpc_linux_in_dynsym_resolve_code (CORE_ADDR pc)
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/* Check if we are in the resolver. */
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sym = lookup_minimal_symbol_by_pc (pc);
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- if ((strcmp (SYMBOL_LINKAGE_NAME (sym), "__glink") == 0)
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- || (strcmp (SYMBOL_LINKAGE_NAME (sym), "__glink_PLTresolve") == 0))
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+ if (sym != NULL
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+ && (strcmp (SYMBOL_LINKAGE_NAME (sym), "__glink") == 0
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+ || strcmp (SYMBOL_LINKAGE_NAME (sym), "__glink_PLTresolve") == 0))
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return 1;
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return 0;
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diff --git a/gdb/testsuite/gdb.base/step-symless.c b/gdb/testsuite/gdb.base/step-symless.c
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new file mode 100644
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index 0000000..97eaf5e
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--- /dev/null
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+++ b/gdb/testsuite/gdb.base/step-symless.c
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@@ -0,0 +1,38 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2012 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 3 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
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+
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+static volatile int v;
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+
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+static void
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+symful (void)
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+{
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+ v++;
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+}
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+
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+static void
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+symless (void)
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+{
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+ v++;
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+}
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+
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+int
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+main (void)
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+{
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+ symless ();
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+ symful ();
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+ return 0;
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+}
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diff --git a/gdb/testsuite/gdb.base/step-symless.exp b/gdb/testsuite/gdb.base/step-symless.exp
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new file mode 100644
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index 0000000..d79edb2
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--- /dev/null
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+++ b/gdb/testsuite/gdb.base/step-symless.exp
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@@ -0,0 +1,41 @@
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+# Copyright (C) 2012 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 3 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <http://www.gnu.org/licenses/>.
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+
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+standard_testfile
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+if {[build_executable ${testfile}.exp ${testfile} ${srcfile} {nodebug}] == -1} {
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+ return -1
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+}
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+
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+# We need those symbols global to access them from the .S file.
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+set test "strip stub symbols"
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+set objcopy_program [transform objcopy]
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+set result [catch "exec $objcopy_program -N symless ${binfile}" output]
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+verbose "result is $result"
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+verbose "output is $output"
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+if {$result != 0} {
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+ fail $test
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+ return
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+}
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+pass $test
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+
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+clean_restart $testfile
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+
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+if ![runto_main] {
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+ return -1
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+}
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+
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+gdb_breakpoint symful
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+
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+gdb_test "step" "Single stepping until exit.*no line number information.*\r\nBreakpoint \[^\r\n\]* in \\.?symful \\(\\)"
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11
gdb.spec
11
gdb.spec
@ -30,11 +30,11 @@ Name: %{?scl_prefix}gdb
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%global snap 20120817
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# See timestamp of source gnulib installed into gdb/gnulib/ .
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%global snapgnulib 20120623
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Version: 7.5.0.20120926
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Version: 7.5.1
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# The release always contains a leading reserved number, start it at 1.
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# `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
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Release: 26%{?dist}
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Release: 27%{?dist}
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License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and BSD and Public Domain
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Group: Development/Debuggers
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@ -565,9 +565,6 @@ Patch703: gdb-rhbz-818343-set-solib-absolute-prefix-testcase.patch
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#=fedora
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Patch716: gdb-minidebuginfo.patch
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# [ppc32] Fix stepping over symbol-less code crash regression (BZ 860696).
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Patch725: gdb-step-symless.patch
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# Fix crash printing classes (BZ 849357, Tom Tromey).
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Patch726: gdb-print-class.patch
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@ -910,7 +907,6 @@ rm -f gdb/jv-exp.c gdb/m2-exp.c gdb/objc-exp.c gdb/p-exp.c gdb/go-exp.c
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%patch698 -p1
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%patch703 -p1
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%patch716 -p1
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%patch725 -p1
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%patch726 -p1
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%patch728 -p1
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%patch729 -p1
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@ -1432,6 +1428,9 @@ fi
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%endif # 0%{!?el5:1} || "%{_target_cpu}" == "noarch"
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%changelog
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* Thu Nov 29 2012 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.5.1-27.fc18
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- Rebase to FSF GDB 7.5.1 (7.5 stable branch).
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* Fri Nov 9 2012 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.5.0.20120926-26.fc18
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- Fix `GDB cannot access struct member whose offset is larger than 256MB'
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(RH BZ 871066).
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