From FEDORA_PATCHES Mon Sep 17 00:00:00 2001

From: Jan Kratochvil <jan.kratochvil@redhat.com>

Date: Fri, 27 Oct 2017 21:07:50 +0200

Subject: gdb-6.7-ppc-clobbered-registers-O2-test.patch

;; Test PPC hiding of call-volatile parameter register.

;;=fedoratest

2007-11-04  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.arch/ppc-clobbered-registers-O2.exp: `powerpc64' changed to

	`powerpc*'.

Testcase for:

http://sourceware.org/ml/gdb-patches/2007-09/msg00228.html

2007-10-21  Luis Machado  <luisgpm@br.ibm.com>

	* rs6000-tdep.c (ppc_dwarf2_frame_init_reg): New function.

	* (rs6000_gdbarch_init): Install ppc_dwarf2_frame_init_reg as

	default dwarf2_frame_set_init_reg function.

diff --git a/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.c b/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.c

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.c

@@ -0,0 +1,21 @@

+

+unsigned * __attribute__((noinline))

+start_sequence (unsigned * x, unsigned * y)

+{

+	return (unsigned *)0xdeadbeef;

+};

+

+unsigned __attribute__((noinline))

+gen_movsd (unsigned * operand0, unsigned * operand1)

+{

+	return *start_sequence(operand0, operand1);

+}

+

+int main(void)

+{

+  unsigned x, y;

+

+  x = 13;

+  y = 14;

+  return (int)gen_movsd (&x, &y);

+}

diff --git a/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.exp b/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.exp

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.arch/ppc-clobbered-registers-O2.exp

@@ -0,0 +1,54 @@

+# Copyright 2006 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 2 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, write to the Free Software

+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

+#

+# This file is part of the gdb testsuite.

+

+# Test displaying call clobbered registers in optimized binaries for ppc.

+# GDB should not show incorrect values.

+

+if ![istarget "powerpc*-*"] then {

+    verbose "Skipping powerpc* call clobbered registers testing."

+    return

+}

+

+set testfile "ppc-clobbered-registers-O2"

+set srcfile ${testfile}.c

+set binfile [standard_output_file ${testfile}]

+set compile_flags "debug additional_flags=-O2"

+

+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable ${compile_flags}] != "" } {

+    unsupported "Testcase compile failed."

+    return -1

+}

+

+gdb_exit

+gdb_start

+gdb_reinitialize_dir $srcdir/$subdir

+gdb_load ${binfile}

+

+if ![runto_main] then {

+    perror "Couldn't run to breakpoint"

+    continue

+}

+

+gdb_test "b start_sequence" ".*Breakpoint 2 at.*line 6.*" \

+  "Insert breakpoint at problematic function"

+

+gdb_test continue ".*Breakpoint 2.*in start_sequence.*" \

+  "Run until problematic function"

+

+gdb_test backtrace ".*operand0=<value optimized out>.*operand1=<value optimized out>.*" \

+  "Check value of call clobbered registers"