1 # Copyright (C) 1996-2015 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)
21 # regexp for "horizontal" text (i.e. doesn't include newline or
23 set horiz "\[^\n\r\]*"
25 if [istarget "*-*-linux"] then {
26 set target_cflags "-D_MIT_POSIX_THREADS"
31 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
35 clean_restart ${binfile}
37 gdb_test_no_output "set print sevenbit-strings"
38 #gdb_test_no_output "set print address off"
39 gdb_test_no_output "set width 0"
41 # We'll need this when we send_gdb a ^C to GDB. Need to do it before we
42 # run the program and gdb starts saving and restoring tty states.
43 gdb_test "shell stty intr '^C'" ".*"
45 proc all_threads_running {} {
49 # Reset all the counters to zero.
50 gdb_test_no_output "set var common_routine::hits=0"
51 gdb_test_no_output "set var common_routine::from_thread1=0"
52 gdb_test_no_output "set var common_routine::from_thread2=0"
53 gdb_test_no_output "set var common_routine::from_main=0"
54 gdb_test_no_output "set var common_routine::full_coverage=0"
56 # Disable all breakpoints.
57 gdb_test_no_output "disable"
59 # Set up a breakpoint that will cause us to stop when we have
60 # been called 15 times. This should be plenty of time to allow
61 # every thread to run at least once, since each thread sleeps for
62 # one second between calls to common_routine.
63 gdb_test "tbreak common_routine if hits >= 15" ".*"
65 # Start all the threads running again and wait for the inferior
66 # to stop. Since no other breakpoints are set at this time
67 # we should stop only when we have been previously called 15 times.
71 gdb_test_multiple "continue" "continue until common routine run 15 times" {
72 -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {
77 if { $return_me == 1 } then {
81 # Check that we stopped when we actually expected to stop, by
82 # verifying that there have been 15 previous hits.
84 # NOTE: Because of synchronization behavior, it is possible for
85 # more than one thread to increment "hits" between one breakpoint
86 # trap and the next. So stopping after 16 or 17 hits should be
87 # considered acceptable.
89 gdb_test_multiple "p common_routine::hits" \
90 "stopped before calling common_routine 15 times" {
91 -re ".*= 15\r\n$gdb_prompt $" {
92 pass "stopped before calling common_routine 15 times"
94 -re ".*= 16\r\n$gdb_prompt $" {
95 pass "stopped before calling common_routine 15 times (16 times)"
97 -re ".*= 17\r\n$gdb_prompt $" {
98 pass "stopped before calling common_routine 15 times (17 times)"
102 # Also check that all of the threads have run, which will only be true
103 # if the full_coverage variable is set.
106 gdb_test_multiple "p common_routine::full_coverage" \
107 "some threads didn't run" {
108 -re ".* = 1.*$gdb_prompt $" {
110 -re ".* = 0.*$gdb_prompt $" {
111 fail "some threads didn't run"
116 # Looks fine, return success.
120 proc test_startup {} {
121 global srcdir srcfile gdb_prompt expect_out
123 global main_id thread1_id thread2_id
125 # We should be able to do an info threads before starting any others.
127 gdb_test_multiple "info threads" "info threads" {
128 -re ".*Thread.*main.*$gdb_prompt $" {
132 -re "\r\n$gdb_prompt $" {
133 unsupported "gdb does not support pthreads for this machine"
137 if { $return_me == 1 } then {
141 # Extract the thread id number of main thread from "info threads" output.
142 gdb_test_multiple "info threads" "get main thread id" {
143 -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" {
147 set main_id $expect_out(1,string)
149 # Check that we can continue and create the first thread.
150 gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
151 gdb_test "continue" \
152 "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
153 "Continue to creation of first thread"
154 gdb_test_no_output "disable"
156 # Extract the thread id number of thread 1 from "info threads" output.
157 gdb_test_multiple "info threads" "get thread 1 id" {
158 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" {
162 set thread1_id $expect_out(1,string)
164 # Check that we can continue and create the second thread,
165 # ignoring the first thread for the moment.
166 gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
167 gdb_test "continue" \
168 "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
169 "Continue to creation of second thread"
171 # Extract the thread id number of thread 2 from "info threads" output.
172 gdb_test_multiple "info threads" "get thread 2 id" {
173 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" {
177 set thread2_id $expect_out(1,string)
182 proc check_control_c {} {
185 # Verify that all threads are running.
186 if [all_threads_running] then {
187 pass "All threads running after startup"
190 # Send a continue followed by ^C to the process to stop it.
191 gdb_test_multiple "continue" "continue with all threads running" {
193 pass "Continue with all threads running"
198 set description "Stopped with a ^C"
200 -re "Program received signal SIGINT.*$gdb_prompt $" {
203 -re "Quit.*$gdb_prompt $" {
207 fail "$description (timeout)"
213 # Verify that all threads can be run again after a ^C stop.
214 if [all_threads_running] then {
215 pass "All threads running after continuing from ^C stop"
220 proc check_backtraces {} {
221 global gdb_prompt main_id thread1_id thread2_id
223 # Check that the "thread apply N backtrace" command works
225 gdb_test "thread apply $main_id backtrace" \
226 ".* in main \\(argc=.*, argv=.*\\).*" \
227 "check backtrace from main thread"
228 gdb_test "thread apply $thread1_id backtrace" \
229 ".* in thread1 \\(arg=0xfeedface\\).*" \
230 "check backtrace from thread 1"
231 gdb_test "thread apply $thread2_id backtrace" \
232 ".* in thread2 \\(arg=0xdeadbeef\\).*" \
233 "check backtrace from thread 2"
235 # Check that we can apply the backtrace command to all
236 # three threads with a single gdb command
238 gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
239 ".* in main .* in thread1 .* in thread2.*" \
240 "apply backtrace command to all three threads"
242 # Check that we can do thread specific backtraces
243 # This also tests that we can do thread specific breakpoints.
245 gdb_test "break common_routine thread $thread2_id" \
246 "Breakpoint .* at 0x.* file .* line .*" \
247 "set break at common_routine in thread 2"
249 gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" {
250 -re "Breakpoint .* common_routine \\(arg=2\\).*$gdb_prompt $" {
251 pass "continue to bkpt at common_routine in thread 2"
252 gdb_test "backtrace" \
253 "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \
254 "backtrace from thread 2 bkpt in common_routine"
256 -re "Breakpoint .* common_routine \\(arg=0\\).*$gdb_prompt $" {
257 fail "continue to bkpt at common_routine in thread 2 (arg=0)"
259 -re "Breakpoint .* common_routine \\(arg=1\\).*$gdb_prompt $" {
260 fail "continue to bkpt at common_routine in thread 2 (arg=1)"
265 if [runto_main] then {
266 if [test_startup] then {
267 if [check_control_c] then {
268 warning "Could not stop child with ^C; skipping rest of tests.\n"