1 # Copyright (C) 1996-2016 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 file was written by Fred Fish. (fnf@cygnus.com)
18 # This test requires sending ^C to interrupt the running target.
19 if [target_info exists gdb,nointerrupts] {
20 verbose "Skipping pthreads.exp because of nointerrupts."
26 # regexp for "horizontal" text (i.e. doesn't include newline or
28 set horiz "\[^\n\r\]*"
30 if [istarget "*-*-linux"] then {
31 set target_cflags "-D_MIT_POSIX_THREADS"
36 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
40 clean_restart ${binfile}
42 gdb_test_no_output "set print sevenbit-strings"
43 #gdb_test_no_output "set print address off"
44 gdb_test_no_output "set width 0"
46 # We'll need this when we send_gdb a ^C to GDB. Need to do it before we
47 # run the program and gdb starts saving and restoring tty states.
48 gdb_test "shell stty intr '^C'" ".*"
50 proc all_threads_running {} {
54 # Reset all the counters to zero.
55 gdb_test_no_output "set var common_routine::hits=0"
56 gdb_test_no_output "set var common_routine::from_thread1=0"
57 gdb_test_no_output "set var common_routine::from_thread2=0"
58 gdb_test_no_output "set var common_routine::from_main=0"
59 gdb_test_no_output "set var common_routine::full_coverage=0"
61 # Disable all breakpoints.
62 gdb_test_no_output "disable"
64 # Set up a breakpoint that will cause us to stop when we have
65 # been called 15 times. This should be plenty of time to allow
66 # every thread to run at least once, since each thread sleeps for
67 # one second between calls to common_routine.
68 gdb_test "tbreak common_routine if hits >= 15" ".*"
70 # Start all the threads running again and wait for the inferior
71 # to stop. Since no other breakpoints are set at this time
72 # we should stop only when we have been previously called 15 times.
76 gdb_test_multiple "continue" "continue until common routine run 15 times" {
77 -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {
82 if { $return_me == 1 } then {
86 # Check that we stopped when we actually expected to stop, by
87 # verifying that there have been 15 previous hits.
89 # NOTE: Because of synchronization behavior, it is possible for
90 # more than one thread to increment "hits" between one breakpoint
91 # trap and the next. So stopping after 16 or 17 hits should be
92 # considered acceptable.
94 gdb_test_multiple "p common_routine::hits" \
95 "stopped before calling common_routine 15 times" {
96 -re ".*= 15\r\n$gdb_prompt $" {
97 pass "stopped before calling common_routine 15 times"
99 -re ".*= 16\r\n$gdb_prompt $" {
100 pass "stopped before calling common_routine 15 times (16 times)"
102 -re ".*= 17\r\n$gdb_prompt $" {
103 pass "stopped before calling common_routine 15 times (17 times)"
107 # Also check that all of the threads have run, which will only be true
108 # if the full_coverage variable is set.
111 gdb_test_multiple "p common_routine::full_coverage" \
112 "some threads didn't run" {
113 -re ".* = 1.*$gdb_prompt $" {
115 -re ".* = 0.*$gdb_prompt $" {
116 fail "some threads didn't run"
121 # Looks fine, return success.
125 proc test_startup {} {
126 global srcdir srcfile gdb_prompt expect_out
128 global main_id thread1_id thread2_id
130 # We should be able to do an info threads before starting any others.
132 gdb_test_multiple "info threads" "info threads" {
133 -re ".*Thread.*main.*$gdb_prompt $" {
137 -re "\r\n$gdb_prompt $" {
138 unsupported "gdb does not support pthreads for this machine"
142 if { $return_me == 1 } then {
146 # Extract the thread id number of main thread from "info threads" output.
147 gdb_test_multiple "info threads" "get main thread id" {
148 -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" {
152 set main_id $expect_out(1,string)
154 # Check that we can continue and create the first thread.
155 gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
156 gdb_test "continue" \
157 "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
158 "Continue to creation of first thread"
159 gdb_test_no_output "disable"
161 # Extract the thread id number of thread 1 from "info threads" output.
162 gdb_test_multiple "info threads" "get thread 1 id" {
163 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" {
167 set thread1_id $expect_out(1,string)
169 # Check that we can continue and create the second thread,
170 # ignoring the first thread for the moment.
171 gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
172 gdb_test "continue" \
173 "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
174 "Continue to creation of second thread"
176 # Extract the thread id number of thread 2 from "info threads" output.
177 gdb_test_multiple "info threads" "get thread 2 id" {
178 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" {
182 set thread2_id $expect_out(1,string)
187 proc check_control_c {} {
190 # Verify that all threads are running.
191 if [all_threads_running] then {
192 pass "All threads running after startup"
195 # Send a continue followed by ^C to the process to stop it.
196 gdb_test_multiple "continue" "continue with all threads running" {
198 pass "Continue with all threads running"
203 set description "Stopped with a ^C"
205 -re "Thread .* received signal SIGINT.*$gdb_prompt $" {
208 -re "Quit.*$gdb_prompt $" {
212 fail "$description (timeout)"
218 # Verify that all threads can be run again after a ^C stop.
219 if [all_threads_running] then {
220 pass "All threads running after continuing from ^C stop"
225 proc check_backtraces {} {
226 global gdb_prompt main_id thread1_id thread2_id
228 # Check that the "thread apply N backtrace" command works
230 gdb_test "thread apply $main_id backtrace" \
231 ".* in main \\(argc=.*, argv=.*\\).*" \
232 "check backtrace from main thread"
233 gdb_test "thread apply $thread1_id backtrace" \
234 ".* in thread1 \\(arg=0xfeedface\\).*" \
235 "check backtrace from thread 1"
236 gdb_test "thread apply $thread2_id backtrace" \
237 ".* in thread2 \\(arg=0xdeadbeef\\).*" \
238 "check backtrace from thread 2"
240 # Check that we can apply the backtrace command to all
241 # three threads with a single gdb command
243 gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
244 ".* in main .* in thread1 .* in thread2.*" \
245 "apply backtrace command to all three threads"
247 # Check that we can do thread specific backtraces
248 # This also tests that we can do thread specific breakpoints.
250 gdb_test "break common_routine thread $thread2_id" \
251 "Breakpoint .* at 0x.* file .* line .*" \
252 "set break at common_routine in thread 2"
254 gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" {
255 -re "Breakpoint .* common_routine \\(arg=2\\).*$gdb_prompt $" {
256 pass "continue to bkpt at common_routine in thread 2"
257 gdb_test "backtrace" \
258 "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \
259 "backtrace from thread 2 bkpt in common_routine"
261 -re "Breakpoint .* common_routine \\(arg=0\\).*$gdb_prompt $" {
262 fail "continue to bkpt at common_routine in thread 2 (arg=0)"
264 -re "Breakpoint .* common_routine \\(arg=1\\).*$gdb_prompt $" {
265 fail "continue to bkpt at common_routine in thread 2 (arg=1)"
270 if [runto_main] then {
271 if [test_startup] then {
272 if [check_control_c] then {
273 warning "Could not stop child with ^C; skipping rest of tests.\n"