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42a4f53d | 1 | # Copyright 2012-2019 Free Software Foundation, Inc. |
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2 | |
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. | |
7 | # | |
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. | |
12 | # | |
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/>. | |
15 | ||
16 | # Step over breakpoints with displaced stepping on, against Valgrind. | |
17 | # We can't really use displaced stepping with Valgrind, so what this | |
18 | # really tests is that GDB falls back to in-line stepping | |
19 | # automatically instead of getting stuck or crashing. | |
20 | ||
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21 | load_lib valgrind.exp |
22 | ||
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23 | if [is_remote target] { |
24 | # The test always runs locally. | |
25 | return 0 | |
26 | } | |
27 | ||
28 | standard_testfile .c | |
29 | if {[build_executable "failed to build" $testfile $srcfile {debug}] == -1} { | |
30 | return -1 | |
31 | } | |
32 | ||
68b9ac18 | 33 | if { [vgdb_start] == -1 } { |
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34 | return -1 |
35 | } | |
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36 | |
37 | gdb_test_no_output "set displaced-stepping off" | |
38 | gdb_breakpoint "main" "breakpoint at main" | |
39 | gdb_test "continue" " stop 0 .*" "continue to main" | |
40 | delete_breakpoints | |
41 | ||
42 | set curr_stop 0 | |
43 | foreach displaced { "off" "on" } { | |
44 | with_test_prefix "displaced $displaced" { | |
45 | ||
46 | gdb_test_no_output "set displaced-stepping $displaced" | |
47 | ||
48 | foreach go { "once" "twice" } { | |
49 | with_test_prefix $go { | |
50 | gdb_test "break" "Breakpoint .* at .*" "set breakpoint" | |
51 | ||
52 | # Whether we should see a warning. | |
53 | set should_warn [expr {$go == "once" && $displaced == "on"}] | |
54 | ||
55 | incr curr_stop | |
56 | ||
57 | set msg "step over breakpoint" | |
58 | set pattern " stop $curr_stop .*$gdb_prompt $" | |
59 | gdb_test_multiple "next" $msg { | |
60 | -re "warning: disabling displaced stepping.*$pattern" { | |
61 | gdb_assert $should_warn $msg | |
62 | } | |
63 | -re "$pattern" { | |
64 | gdb_assert !$should_warn $msg | |
65 | } | |
66 | } | |
67 | } | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
68b9ac18 | 72 | vgdb_stop |