gdb/SOURCES/gdb-6.7-ppc-clobbered-registers-O2-test.patch
2021-09-09 17:02:55 +00:00

109 lines
3.3 KiB
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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"