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