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62 lines
2.3 KiB
62 lines
2.3 KiB
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001 |
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From: Fedora GDB patches <invalid@email.com> |
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Date: Fri, 27 Oct 2017 21:07:50 +0200 |
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Subject: gdb-6.5-last-address-space-byte-test.patch |
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;; Testcase for deadlocking on last address space byte; for corrupted backtraces. |
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;;=fedoratest |
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diff --git a/gdb/testsuite/gdb.base/largecore-last-address-lock.exp b/gdb/testsuite/gdb.base/largecore-last-address-lock.exp |
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new file mode 100644 |
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--- /dev/null |
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+++ b/gdb/testsuite/gdb.base/largecore-last-address-lock.exp |
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@@ -0,0 +1,49 @@ |
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+# Copyright 2006 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 2 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, write to the Free Software |
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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+ |
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+if $tracelevel then { |
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+ strace $tracelevel |
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+} |
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+ |
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+# Get things started. |
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+ |
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+gdb_exit |
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+gdb_start |
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+ |
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+# i386 (32-bit) only: gdb with Red Hat largecore patch did lock up: |
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+# https://enterprise.redhat.com/issue-tracker/?module=issues&action=view&tid=103263 |
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+# https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210614 |
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+ |
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+# i386: Bug exists when the `target_xfer_memory' condition |
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+# `(memaddr + len < region->hi)' operates on 64-bit operands on |
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+# largecore-patched with 32-bit addresses and so it can get `false' with |
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+# arbitrary `len'. |
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+ |
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+# x86_64: The bug is not present as the operands and calculations have the same |
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+# bit size. Would would still need to pass there the highest address |
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+# (`memaddr == 0xffffffffffffffff') but we would need to pass `len == 0' |
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+# to make the condition `(memaddr + len < region->hi)' false. |
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+# `len == 0' would get caught eariler. |
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+ |
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+# Error in the success case is immediate. |
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+set timeoutold ${timeout} |
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+set timeout 10 |
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+ |
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+gdb_test "x/xb 0xffffffff" \ |
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+ "Cannot access memory at address 0xffffffff" \ |
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+ "Read the last address space byte" |
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+ |
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+set timeout ${timeoutold}
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