xref: /netbsd-src/external/gpl3/gdb/dist/gdb/testsuite/gdb.btrace/delta.exp (revision d16b7486a53dcb8072b60ec6fcb4373a2d0c27b7)
1# This testcase is part of GDB, the GNU debugger.
2#
3# Copyright 2013-2023 Free Software Foundation, Inc.
4#
5# Contributed by Intel Corp. <markus.t.metzger@intel.com>
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19
20if { [skip_btrace_tests] } {
21    unsupported "target does not support record-btrace"
22    return -1
23}
24
25standard_testfile record_goto.c
26if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
27    return -1
28}
29
30if ![runto_main] {
31    return -1
32}
33
34# proceed to some sequential code
35gdb_test "next"
36
37# start tracing
38gdb_test_no_output "record btrace"
39
40# we start without trace
41with_test_prefix "no trace" {
42  gdb_test "info record" [multi_line \
43    "Active record target: record-btrace" \
44    "Recording format: .*" \
45    "Recorded 0 instructions in 0 functions \\\(0 gaps\\\) for .*" \
46    ]
47  gdb_test "record instruction-history" "No trace\."
48  gdb_test "record function-call-history" "No trace\."
49}
50
51# we record each single-step, even if we have not seen a branch, yet.
52gdb_test "stepi"
53
54proc check_trace {} {
55  gdb_test "info record" [multi_line \
56    "Active record target: record-btrace" \
57    "Recording format: .*" \
58    "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
59    ]
60}
61
62# make sure we don't extend the trace when we ask twice.
63with_test_prefix "once" {
64  check_trace
65}
66
67with_test_prefix "twice" {
68  check_trace
69}
70
71# check that we can reverse-stepi that instruction
72with_test_prefix "reverse" {
73    gdb_test "reverse-stepi"
74    gdb_test "info record" [multi_line \
75      "Active record target: record-btrace" \
76      "Recording format: .*" \
77      "Recorded 1 instructions in 1 functions \\\(0 gaps\\\) for .*" \
78      "Replay in progress\.  At instruction 1\." \
79    ]
80}
81
82# and back
83with_test_prefix "forward" {
84    gdb_test "stepi"
85    check_trace
86}
87