1 # Copyright 2008-2019 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # This file is part of the gdb testsuite.
18 # Test single stepping through atomic sequences beginning with
19 # a lwarx/ldarx instruction and ending with a stwcx/stdcx
23 if {![istarget "powerpc*"] || ![is_lp64_target]} {
24 verbose "Skipping testing of powerpc64 single stepping over atomic sequences."
30 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug quiet}] } {
34 # The test proper. DISPLACED is true if we should try with displaced
36 proc do_test { displaced } {
39 if ![runto_main] then {
40 untested "could not run to main"
44 gdb_test_no_output "set displaced-stepping $displaced"
46 set bp1 [gdb_get_line_number "lwarx"]
47 gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \
48 "set the breakpoint at the start of the lwarx/stwcx sequence"
50 set bp2 [gdb_get_line_number "ldarx"]
51 gdb_breakpoint "$bp2" "Breakpoint $decimal at $hex" \
52 "set the breakpoint at the start of the ldarx/stdcx sequence"
54 gdb_test continue "Continuing.*Breakpoint $decimal.*" \
55 "continue until lwarx/stwcx start breakpoint"
57 gdb_test nexti "bne.*1b" \
58 "step through the lwarx/stwcx sequence"
60 gdb_test continue "Continuing.*Breakpoint $decimal.*" \
61 "continue until ldarx/stdcx start breakpoint"
63 gdb_test nexti "bne.*1b" \
64 "step through the ldarx/stdcx sequence"
67 foreach displaced { "off" "on" } {
68 with_test_prefix "displaced=$displaced" {