1# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2# 2009, 2010, 2011 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 file was written by Fred Fish. (fnf@cygnus.com) 18 19if $tracelevel then { 20 strace $tracelevel 21} 22 23 24# This only works with native configurations 25if ![isnative] then { 26 return 27} 28 29set testfile "pthreads" 30set srcfile ${testfile}.c 31set binfile ${objdir}/${subdir}/${testfile} 32 33# regexp for "horizontal" text (i.e. doesn't include newline or 34# carriage return) 35set horiz "\[^\n\r\]*" 36 37if [istarget "*-*-linux"] then { 38 set target_cflags "-D_MIT_POSIX_THREADS" 39} else { 40 set target_cflags "" 41} 42 43if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } { 44 return -1 45} 46 47 48# Start with a fresh gdb. 49 50gdb_exit 51gdb_start 52gdb_reinitialize_dir $srcdir/$subdir 53gdb_load ${binfile} 54 55gdb_test_no_output "set print sevenbit-strings" 56#gdb_test_no_output "set print address off" 57gdb_test_no_output "set width 0" 58 59# We'll need this when we send_gdb a ^C to GDB. Need to do it before we 60# run the program and gdb starts saving and restoring tty states. 61# On Ultrix, we don't need it and it is really slow (because shell_escape 62# doesn't use vfork). 63if ![istarget "*-*-ultrix*"] then { 64 gdb_test "shell stty intr '^C'" ".*" 65} 66 67proc all_threads_running {} { 68 global gdb_prompt 69 global srcfile 70 71 # Reset all the counters to zero. 72 gdb_test_no_output "set var common_routine::hits=0" 73 gdb_test_no_output "set var common_routine::from_thread1=0" 74 gdb_test_no_output "set var common_routine::from_thread2=0" 75 gdb_test_no_output "set var common_routine::from_main=0" 76 gdb_test_no_output "set var common_routine::full_coverage=0" 77 78 # Disable all breakpoints. 79 gdb_test_no_output "disable" 80 81 # Set up a breakpoint that will cause us to stop when we have 82 # been called 15 times. This should be plenty of time to allow 83 # every thread to run at least once, since each thread sleeps for 84 # one second between calls to common_routine. 85 gdb_test "tbreak common_routine if hits >= 15" ".*" 86 87 # Start all the threads running again and wait for the inferior 88 # to stop. Since no other breakpoints are set at this time 89 # we should stop only when we have been previously called 15 times. 90 91 set return_me 1 92 93 gdb_test_multiple "continue" "continue until common routine run 15 times" { 94 -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" { 95 set return_me 0 96 } 97 } 98 99 if { $return_me == 1 } then { 100 return 0; 101 } 102 103 # Check that we stopped when we actually expected to stop, by 104 # verifying that there have been 15 previous hits. 105 106 # NOTE: Because of synchronization behavior, it is possible for 107 # more than one thread to increment "hits" between one breakpoint 108 # trap and the next. So stopping after 16 or 17 hits should be 109 # considered acceptable. 110 111 gdb_test_multiple "p common_routine::hits" \ 112 "stopped before calling common_routine 15 times" { 113 -re ".*= 15\r\n$gdb_prompt $" { 114 pass "stopped before calling common_routine 15 times" 115 } 116 -re ".*= 16\r\n$gdb_prompt $" { 117 pass "stopped before calling common_routine 15 times (16 times)" 118 } 119 -re ".*= 17\r\n$gdb_prompt $" { 120 pass "stopped before calling common_routine 15 times (17 times)" 121 } 122 } 123 124 # Also check that all of the threads have run, which will only be true 125 # if the full_coverage variable is set. 126 127 set return_me 1 128 gdb_test_multiple "p common_routine::full_coverage" \ 129 "some threads didn't run" { 130 -re ".* = 1.*$gdb_prompt $" { 131 } 132 -re ".* = 0.*$gdb_prompt $" { 133 fail "some threads didn't run" 134 set return_me 0 135 } 136 } 137 138 # Looks fine, return success. 139 return $return_me 140} 141 142proc test_startup {} { 143 global srcdir srcfile gdb_prompt expect_out 144 global horiz 145 global main_id thread1_id thread2_id 146 147 # We should be able to do an info threads before starting any others. 148 set return_me 1 149 gdb_test_multiple "info threads" "info threads" { 150 -re ".*Thread.*main.*$gdb_prompt $" { 151 pass "info threads" 152 set return_me 0 153 } 154 -re "\r\n$gdb_prompt $" { 155 unsupported "gdb does not support pthreads for this machine" 156 } 157 } 158 159 if { $return_me == 1 } then { 160 return 0; 161 } 162 163 # Extract the thread id number of main thread from "info threads" output. 164 gdb_test_multiple "info threads" "get main thread id" { 165 -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" { 166 } 167 } 168 169 set main_id $expect_out(1,string) 170 171 # Check that we can continue and create the first thread. 172 gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*" 173 gdb_test "continue" \ 174 "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \ 175 "Continue to creation of first thread" 176 gdb_test_no_output "disable" 177 178 # Extract the thread id number of thread 1 from "info threads" output. 179 gdb_test_multiple "info threads" "get thread 1 id" { 180 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" { 181 } 182 } 183 184 set thread1_id $expect_out(1,string) 185 186 # Check that we can continue and create the second thread, 187 # ignoring the first thread for the moment. 188 gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*" 189 gdb_test "continue" \ 190 "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \ 191 "Continue to creation of second thread" 192 193 # Extract the thread id number of thread 2 from "info threads" output. 194 gdb_test_multiple "info threads" "get thread 2 id" { 195 -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" { 196 } 197 } 198 199 set thread2_id $expect_out(1,string) 200 201 return 1 202} 203 204proc check_control_c {} { 205 global gdb_prompt 206 207 # Verify that all threads are running. 208 if [all_threads_running] then { 209 pass "All threads running after startup" 210 } 211 212 # Send a continue followed by ^C to the process to stop it. 213 gdb_test_multiple "continue" "continue with all threads running" { 214 -re "Continuing." { 215 pass "Continue with all threads running" 216 } 217 } 218 after 2000 219 send_gdb "\003" 220 set description "Stopped with a ^C" 221 gdb_expect { 222 -re "Program received signal SIGINT.*$gdb_prompt $" { 223 pass $description 224 } 225 -re "Quit.*$gdb_prompt $" { 226 pass $description 227 } 228 timeout { 229 fail "$description (timeout)" 230 return 1; 231 } 232 } 233 gdb_test "bt" ".*" 234 235 # Verify that all threads can be run again after a ^C stop. 236 if [all_threads_running] then { 237 pass "All threads running after continuing from ^C stop" 238 } 239 return 0; 240} 241 242proc check_backtraces {} { 243 global gdb_prompt main_id thread1_id thread2_id 244 245 # Check that the "thread apply N backtrace" command works 246 247 gdb_test "thread apply $main_id backtrace" \ 248 ".* in main \\(argc=.*, argv=.*\\).*" \ 249 "check backtrace from main thread" 250 gdb_test "thread apply $thread1_id backtrace" \ 251 ".* in thread1 \\(arg=0xfeedface\\).*" \ 252 "check backtrace from thread 1" 253 gdb_test "thread apply $thread2_id backtrace" \ 254 ".* in thread2 \\(arg=0xdeadbeef\\).*" \ 255 "check backtrace from thread 2" 256 257 # Check that we can apply the backtrace command to all 258 # three threads with a single gdb command 259 260 gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \ 261 ".* in main .* in thread1 .* in thread2.*" \ 262 "apply backtrace command to all three threads" 263 264 # Check that we can do thread specific backtraces 265 # This also tests that we can do thread specific breakpoints. 266 267 gdb_test "break common_routine thread $thread2_id" \ 268 "Breakpoint .* at 0x.* file .* line .*" \ 269 "set break at common_routine in thread 2" 270 271 gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" { 272 -re "Breakpoint .* common_routine \\(arg=2\\).*$gdb_prompt $" { 273 pass "continue to bkpt at common_routine in thread 2" 274 gdb_test "backtrace" \ 275 "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \ 276 "backtrace from thread 2 bkpt in common_routine" 277 } 278 -re "Breakpoint .* common_routine \\(arg=0\\).*$gdb_prompt $" { 279 fail "continue to bkpt at common_routine in thread 2 (arg=0)" 280 } 281 -re "Breakpoint .* common_routine \\(arg=1\\).*$gdb_prompt $" { 282 fail "continue to bkpt at common_routine in thread 2 (arg=1)" 283 } 284 } 285} 286 287setup_xfail "alpha-*-osf*" 288if [runto_main] then { 289 clear_xfail "alpha-*-osf*" 290 if [test_startup] then { 291 if [check_control_c] then { 292 warning "Could not stop child with ^C; skipping rest of tests.\n" 293 return; 294 } 295 check_backtraces 296 } 297} 298clear_xfail "alpha-*-osf*" 299