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gdb.15106
gdb-rhbz1261564-aarch64-hw-watchpoint-test.patch
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File gdb-rhbz1261564-aarch64-hw-watchpoint-test.patch of Package gdb.15106
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001 From: Fedora GDB patches <invalid@email.com> Date: Fri, 27 Oct 2017 21:07:50 +0200 Subject: gdb-rhbz1261564-aarch64-hw-watchpoint-test.patch ;; [aarch64] Fix hardware watchpoints (RH BZ 1261564). ;;=fedoratest diff --git a/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.c b/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.c new file mode 100644 --- /dev/null +++ b/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.c @@ -0,0 +1,33 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2016 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +__attribute__((aligned(16))) struct +{ + int var0, var4, var8; +} aligned; + +int +main (void) +{ + aligned.var0 = 1; + aligned.var4 = 2; + aligned.var8 = 3; + + aligned.var4 = aligned.var0; + + return 0; +} diff --git a/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.exp b/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.exp new file mode 100644 --- /dev/null +++ b/gdb/testsuite/gdb.base/rhbz1261564-aarch64-watchpoint.exp @@ -0,0 +1,53 @@ +# Copyright (C) 2016 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +if { [prepare_for_testing rhbz1261564-aarch64-watchpoint.exp "rhbz1261564-aarch64-watchpoint"] } { + return -1 +} + +if { ! [ runto main ] } then { return 0 } + +set test "rwatch aligned.var4" +if [istarget "s390*-*-*"] { + gdb_test $test {Target does not support this type of hardware watchpoint\.} + untested "s390* does not support hw read watchpoint" + return +} +gdb_test $test "Hardware read watchpoint \[0-9\]+: aligned.var4" + +proc checkvar { address } { + global gdb_prompt + + set test "p &aligned.var$address" + gdb_test_multiple $test $test { + -re " = \\(int \\*\\) 0x\[0-9a-f\]+$address <aligned(\\+\[0-9\]+)?>\r\n$gdb_prompt $" { + pass $test + } + -re "\r\n$gdb_prompt $" { + untested "$test (unexpected ELF layout)" + return 0 + } + } + return 1 +} +if ![checkvar "0"] { return } +if ![checkvar "4"] { return } +if ![checkvar "8"] { return } + +# Assumes: PPC_PTRACE_GETHWDBGINFO::data_bp_alignment == 8 +# 'lwz' does read only 4 bytes but the hw watchpoint is 8 bytes wide. +setup_xfail "powerpc*-*-*" + +gdb_continue_to_end
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