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618f726f | 1 | # Copyright (C) 2015-2016 Free Software Foundation, Inc. |
863d01bd PA |
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 | # This test verifies that several threads forking while another thread | |
17 | # is constantly stepping over a breakpoint is properly handled. | |
18 | ||
19 | standard_testfile | |
20 | ||
21 | set linenum [gdb_get_line_number "set break here"] | |
22 | ||
23 | if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} { | |
24 | return -1 | |
25 | } | |
26 | ||
27 | # The test proper. If COND_BP_TARGET is true, then test with | |
28 | # conditional breakpoints evaluated on the target side, if possible. | |
29 | # DETACH_ON_FORK is used as value for the "set detach-on-fork" | |
30 | # setting. If "on", this exercises GDB explicitly continuing the fork | |
31 | # child until exit. If "off", this exercises GDB detaching the fork | |
32 | # child. | |
33 | proc do_test { cond_bp_target detach_on_fork } { | |
34 | global GDBFLAGS | |
35 | global srcfile testfile binfile | |
36 | global decimal gdb_prompt | |
37 | global linenum | |
38 | global is_remote_target | |
39 | ||
40 | set saved_gdbflags $GDBFLAGS | |
41 | set GDBFLAGS [concat $GDBFLAGS " -ex \"set non-stop on\""] | |
42 | clean_restart $binfile | |
43 | set GDBFLAGS $saved_gdbflags | |
44 | ||
45 | if ![runto_main] then { | |
46 | fail "Can't run to main" | |
47 | return 0 | |
48 | } | |
49 | ||
50 | gdb_test_no_output "set detach-on-fork $detach_on_fork" | |
51 | ||
52 | gdb_test "break $linenum if zero == 1" \ | |
53 | "Breakpoint .*" \ | |
54 | "set breakpoint that evals false" | |
55 | ||
56 | set test "continue &" | |
57 | gdb_test_multiple $test $test { | |
58 | -re "$gdb_prompt " { | |
59 | pass $test | |
60 | } | |
61 | } | |
62 | ||
63 | set fork_count 0 | |
64 | set ok 0 | |
65 | ||
66 | set test "inferior 1 exited" | |
67 | gdb_test_multiple "" $test { | |
68 | -re "Inferior 1 \(\[^\r\n\]+\) exited normally" { | |
69 | set ok 1 | |
70 | pass $test | |
71 | } | |
72 | -re "Inferior $decimal \(\[^\r\n\]+\) exited normally" { | |
73 | incr fork_count | |
74 | if {$fork_count <= 100} { | |
75 | exp_continue | |
76 | } else { | |
77 | fail "$test (too many forks)" | |
78 | } | |
79 | } | |
80 | } | |
81 | ||
82 | if {!$ok} { | |
83 | # No use testing further. | |
84 | return | |
85 | } | |
86 | ||
87 | gdb_test "info threads" "No threads\." \ | |
88 | "no threads left" | |
89 | ||
90 | gdb_test "info inferiors" \ | |
91 | "Num\[ \t\]+Description\[ \t\]+Executable\[ \t\]+\r\n\\* 1 \[^\r\n\]+" \ | |
92 | "only inferior 1 left" | |
93 | } | |
94 | ||
95 | # Wrapper for foreach that calls with_test_prefix on each iteration, | |
96 | # including the iterator's current value in the prefix. | |
97 | ||
98 | proc foreach_with_prefix {var list body} { | |
99 | upvar 1 $var myvar | |
100 | foreach myvar $list { | |
101 | with_test_prefix "$var=$myvar" { | |
102 | uplevel 1 $body | |
103 | } | |
104 | } | |
105 | } | |
106 | ||
107 | foreach_with_prefix cond_bp_target {1 0} { | |
f6a9d9c7 | 108 | foreach_with_prefix detach_on_fork {"on" "off"} { |
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109 | do_test $cond_bp_target $detach_on_fork |
110 | ||
111 | # Disable "off" for now. The test does pass with | |
112 | # detach-on-fork off (at the time of writing), but gdb seems | |
113 | # to slow down quadratically as inferiors are created, and | |
114 | # then the test takes annoyingly long to complete... | |
115 | break | |
116 | } | |
117 | } |