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1 | # Copyright 2008 |
2 | # Free Software Foundation, Inc. | |
3 | ||
4 | # This program is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License as published by | |
6 | # the Free Software Foundation; either version 3 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU General Public License | |
15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | ||
17 | # This test was created by modifying attach-stopped.exp. | |
18 | # This file was created by Jan Kratochvil <jan.kratochvil@redhat.com>. | |
19 | ||
20 | # This test only works on Linux | |
21 | if { ![isnative] || [is_remote host] || ![istarget *-linux*] } { | |
22 | continue | |
23 | } | |
24 | ||
25 | set testfile "attach-into-signal" | |
26 | set srcfile ${testfile}.c | |
27 | set binfile ${objdir}/${subdir}/${testfile} | |
28 | set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}] | |
29 | ||
30 | remote_exec build "rm -f ${binfile}" | |
31 | # For debugging this test | |
32 | # | |
33 | #log_user 1 | |
34 | ||
35 | proc corefunc { threadtype } { | |
36 | global srcfile | |
37 | global binfile | |
38 | global escapedbinfile | |
39 | global srcdir | |
40 | global subdir | |
41 | global gdb_prompt | |
42 | ||
43 | if [get_compiler_info ${binfile}] { | |
44 | return -1 | |
45 | } | |
46 | ||
47 | # Start the program running and then wait for a bit, to be sure | |
48 | # that it can be attached to. | |
49 | # Statistically there is a better chance without giving process a nice. | |
50 | ||
51 | set testpid [eval exec $binfile &] | |
52 | exec sleep 2 | |
53 | ||
54 | # Run 2 passes of the test. | |
55 | # The C file inferior stops pending its signals if a single one is lost, | |
56 | # we test successful redelivery of the caught signal by the 2nd pass. | |
57 | ||
58 | # linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs. | |
59 | set attempts 100 | |
60 | set attempt 1 | |
61 | set passes 1 | |
62 | while { $passes < 3 && $attempt <= $attempts } { | |
63 | set stoppedtry 0 | |
64 | while { $stoppedtry < 10 } { | |
65 | if [catch {open /proc/${testpid}/status r} fileid] { | |
66 | set stoppedtry 10 | |
67 | break | |
68 | } | |
69 | gets $fileid line1; | |
70 | gets $fileid line2; | |
71 | close $fileid; | |
72 | ||
73 | if {![string match "*(stopped)*" $line2]} { | |
74 | # No PASS message as we may be looping in multiple attempts. | |
75 | break | |
76 | } | |
77 | sleep 1 | |
78 | set stoppedtry [expr $stoppedtry + 1] | |
79 | } | |
80 | if { $stoppedtry >= 10 } { | |
81 | verbose -log $line2 | |
82 | set test "$threadtype: process is still running on the attempt # $attempt of $attempts" | |
83 | break | |
84 | } | |
85 | ||
86 | # Main test: | |
87 | set test "$threadtype: attach (pass $passes), pending signal catch" | |
88 | if {[gdb_test_multiple "attach $testpid" $test { | |
89 | -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Received Alarm clock.*$gdb_prompt $" { | |
90 | # nonthreaded: | |
91 | pass $test | |
92 | verbose -log "$test succeeded on the attempt # $attempt of $attempts" | |
93 | set passes [expr $passes + 1] | |
94 | } | |
95 | -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" { | |
96 | # nonthreaded: | |
97 | # We just lack the luck, we should try it again. | |
98 | set attempt [expr $attempt + 1] | |
99 | } | |
100 | -re "Attaching to process $testpid.*Received Alarm clock.*$gdb_prompt $" { | |
101 | # threaded: | |
102 | pass $test | |
103 | verbose -log "$test succeeded on the attempt # $attempt of $attempts" | |
104 | set passes [expr $passes + 1] | |
105 | } | |
106 | -re "Attaching to process $testpid.*$gdb_prompt $" { | |
107 | # threaded: | |
108 | # We just lack the luck, we should try it again. | |
109 | set attempt [expr $attempt - 1] | |
110 | } | |
111 | }] != 0 } { | |
112 | break | |
113 | } | |
114 | ||
115 | gdb_test "detach" "Detaching from.*" "" | |
116 | } | |
117 | if {$passes < 3} { | |
118 | if {$attempt > $attempts} { | |
119 | unresolved $test | |
120 | } else { | |
121 | fail $test | |
122 | } | |
123 | } | |
124 | ||
125 | # Exit and detach the process. | |
126 | ||
127 | gdb_exit | |
128 | ||
129 | # Make sure we don't leave a process around to confuse | |
130 | # the next test run (and prevent the compile by keeping | |
131 | # the text file busy), in case the "set should_exit" didn't | |
132 | # work. | |
133 | ||
134 | # Continue the program - some Linux kernels need it before -9 if the | |
135 | # process is stopped. | |
136 | remote_exec build "kill -s CONT ${testpid}" | |
137 | ||
138 | remote_exec build "kill -9 ${testpid}" | |
139 | } | |
140 | ||
141 | # Start with clean gdb | |
142 | gdb_exit | |
143 | ||
144 | # build the test case first without threads | |
145 | # | |
146 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
147 | gdb_suppress_entire_file "Testcase nonthraded compile failed, so all tests in this file will automatically fail." | |
148 | } | |
149 | ||
150 | gdb_start | |
151 | gdb_reinitialize_dir $srcdir/$subdir | |
152 | gdb_load ${binfile} | |
153 | gdb_test "set debug lin-lwp 1" "" "" | |
154 | ||
155 | corefunc nonthreaded | |
156 | ||
157 | # build the test case also with threads | |
158 | # | |
159 | if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } { | |
160 | gdb_suppress_entire_file "Testcase threaded compile failed, so all tests in this file will automatically fail." | |
161 | } | |
162 | ||
163 | gdb_start | |
164 | gdb_reinitialize_dir $srcdir/$subdir | |
165 | gdb_load ${binfile} | |
166 | gdb_test "set debug lin-lwp 1" "" "" | |
167 | ||
168 | corefunc threaded |