1 # This testcase is part of GDB, the GNU debugger.
3 # Copyright 2013-2024 Free Software Foundation, Inc.
5 # Contributed by Intel Corp. <markus.t.metzger@intel.com>
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.
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.
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/>.
20 require allow_btrace_tests
22 # This test is stepping on instruction level. To guarantee that we always
23 # get the same execution trace, we use an assembly source file.
25 # We use different assembly sources based on the target architecture.
27 # Luckily, they are similar enough that a single test script can handle
29 if [info exists COMPILE] {
30 # make check RUNTESTFLAGS="gdb.btrace/stepi.exp COMPILE=1"
31 standard_testfile record_goto.c
33 } elseif {[istarget "i?86-*-*"] || [istarget "x86_64-*-*"]} {
34 if {[is_amd64_regs_target]} {
35 standard_testfile x86_64-record_goto.S
37 standard_testfile i686-record_goto.S
40 unsupported "target architecture not supported"
44 if [prepare_for_testing "failed to prepare" $testfile $srcfile {}] {
54 proc check_replay_at { insn } {
55 gdb_test "info record" [multi_line \
56 "Active record target: record-btrace" \
58 "Recorded 40 instructions in 16 functions \\\(0 gaps\\\) for .*" \
59 "Replay in progress\. At instruction $insn\." \
60 ] "check replay at $insn"
63 # trace the call to the test function
64 with_test_prefix "record" {
65 gdb_test_no_output "record btrace"
66 gdb_test "next" ".*" "next.1"
69 # we start with stepping to make sure that the trace is fetched automatically
70 with_test_prefix "fetch" {
71 gdb_test "reverse-stepi" ".*fun4\.5.*" "reverse-stepi.1"
72 gdb_test "reverse-stepi" ".*fun4\.5.*" "reverse-stepi.2"
74 # let's check where we are in the trace
78 # let's step forward and check again
79 with_test_prefix "stepi" {
80 gdb_test "stepi" ".*fun4\.5.*"
84 # with the next step, we stop replaying
85 with_test_prefix "end" {
86 gdb_test "stepi" ".*main\.3.*"
87 gdb_test "info record" [multi_line \
88 "Active record target: record-btrace" \
90 "Recorded 40 instructions in 16 functions \\\(0 gaps\\\) for \[^\\\r\\\n\]*" \
95 with_test_prefix "reverse-nexti.1" {
96 gdb_test "reverse-nexti" ".*main\.2.*"
100 # we can't reverse-nexti any further
101 with_test_prefix "reverse-nexti.2" {
102 gdb_test "reverse-nexti" \
103 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
108 # but we can step back again
109 with_test_prefix "nexti" {
110 gdb_test "nexti" ".*main\.3.*"
111 gdb_test "info record" [multi_line \
112 "Active record target: record-btrace" \
114 "Recorded 40 instructions in 16 functions \\\(0 gaps\\\) for \[^\\\r\\\n\]*" \
118 # let's step from a goto position somewhere in the middle
119 with_test_prefix "goto" {
120 gdb_test "record goto 22" ".*fun3\.2.*"
121 with_test_prefix "goto 22" { check_replay_at 22 }
123 gdb_test "stepi" ".*fun1\.1.*" "stepi.3"
124 with_test_prefix "stepi to 23" { check_replay_at 23 }
126 gdb_test "reverse-stepi" ".*fun3\.2.*" "reverse-stepi.3"
127 with_test_prefix "reverse-stepi to 22" { check_replay_at 22 }
129 gdb_test "nexti" ".*fun3\.3.*"
130 with_test_prefix "nexti to 27" { check_replay_at 27 }
132 gdb_test "reverse-nexti" ".*fun3\.2.*" "reverse-nexti.3"
133 with_test_prefix "reverse-nexti to 22" { check_replay_at 22 }
136 # let's try to step off the left end
137 with_test_prefix "goto begin" {
138 gdb_test "record goto begin" ".*main\.2.*"
141 with_test_prefix "reverse-stepi" {
142 gdb_test "reverse-stepi" \
143 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
145 gdb_test "reverse-stepi" \
146 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
151 with_test_prefix "reverse-nexti" {
152 gdb_test "reverse-nexti" \
153 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
155 gdb_test "reverse-nexti" \
156 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
161 # we can step forward, though
162 with_test_prefix "stepi" {
163 gdb_test "stepi" ".*fun4\.1.*"
168 # let's try to step off the left end again
169 with_test_prefix "reverse-stepi" {
170 gdb_test "reverse-stepi" ".*main\.2.*" "reverse-stepi.1"
171 gdb_test "reverse-stepi" \
172 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \
174 gdb_test "reverse-stepi" \
175 "Reached end of recorded history; stopping\.\r\n.*main\.2.*" \