1 # Copyright 2008-2012 Free Software Foundation, Inc.
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.
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.
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/>.
16 # This test was created by modifying attach-stopped.exp.
17 # This file was created by Jan Kratochvil <jan.kratochvil@redhat.com>.
19 # This test only works on Linux
20 if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub]
21 || ![istarget *-linux*] } {
25 set testfile "attach-into-signal"
26 set srcfile ${testfile}.c
27 set executable_nothr ${testfile}-nothr
28 set executable_thr ${testfile}-thr
30 remote_exec build "rm -f ${objdir}/${subdir}/${executable_nothr}"
31 remote_exec build "rm -f ${objdir}/${subdir}/${executable_thr}"
32 # For debugging this test
36 proc corefunc { threadtype executable } {
43 with_test_prefix "$threadtype" {
44 clean_restart ${executable}
46 set binfile ${objdir}/${subdir}/${executable}
47 set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${executable}]
49 if [get_compiler_info ${binfile}] {
53 gdb_test "handle SIGALRM stop print pass" "Yes.*Yes.*Yes.*"
55 # Start the program running and then wait for a bit, to be sure
56 # that it can be attached to.
57 # Statistically there is a better chance without giving process a nice.
59 set testpid [eval exec $binfile &]
62 # Run 2 passes of the test.
63 # The C file inferior stops pending its signals if a single one is lost,
64 # we test successful redelivery of the caught signal by the 2nd pass.
66 # linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs.
70 while { $passes < 3 && $attempt <= $attempts } {
72 while { $stoppedtry < 10 } {
73 if [catch {open /proc/${testpid}/status r} fileid] {
81 if {![string match "*(stopped)*" $line2]} {
82 # No PASS message as we may be looping in multiple
87 set stoppedtry [expr $stoppedtry + 1]
89 if { $stoppedtry >= 10 } {
91 set test "process is still running on the attempt # $attempt of $attempts"
96 set test "attach (pass $passes), pending signal catch"
97 if {[gdb_test_multiple "attach $testpid" $test {
98 -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Program received signal SIGALRM.*$gdb_prompt $" {
101 verbose -log "$test succeeded on the attempt # $attempt of $attempts"
102 set passes [expr $passes + 1]
104 -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
107 if { $threadtype == "threaded" } {
108 # In the threaded case, the signal is left
109 # pending on the second thread. Check for
110 # that by peeking at the thread's siginfo.
111 # SIGALRM is 14, SIGSTOP is 19.
113 # With remote targets, we need to pull the
114 # thread list explicitly before GDB even knows
116 set test2 "pull thread list"
117 gdb_test_multiple "info threads" $test2 {
118 -re "\r\n$gdb_prompt $" {
122 set test2 "thread apply 2 print \$_siginfo.si_signo"
123 gdb_test_multiple $test2 $test2 {
124 -re " = 14\r\n$gdb_prompt $" {
127 -re " = 19\r\n$gdb_prompt $" {
131 # In the nonthreaded case, GDB should tell the
132 # user about having seen a signal.
136 # We just lack the luck, we should try it again.
137 set attempt [expr $attempt + 1]
140 verbose -log "$test succeeded on the attempt # $attempt of $attempts"
141 set passes [expr $passes + 1]
148 gdb_test "detach" "Detaching from.*" ""
151 if {$attempt > $attempts} {
158 # Exit and detach the process.
162 # Make sure we don't leave a process around to confuse the
163 # next test run (and prevent the compile by keeping the text
164 # file busy), in case the "set should_exit" didn't work.
166 # Continue the program - some Linux kernels need it before -9 if the
167 # process is stopped.
168 remote_exec build "kill -s CONT ${testpid}"
170 remote_exec build "kill -9 ${testpid}"
175 # build the test case first without threads
177 if {[build_executable $testfile $executable_nothr $srcfile] == -1} {
178 untested "attach-into-signal.exp (nonthreaded)"
182 corefunc nonthreaded ${executable_nothr}
184 # build the test case also with threads
186 if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objdir}/${subdir}/${executable_thr}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
187 untested "attach-into-signal.exp (threaded)"
191 corefunc threaded ${executable_thr}