1# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007 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# Please email any bugs, comments, and/or additions to this file to: 18# bug-gdb@prep.ai.mit.edu 19 20# This file was written by Fred Fish. (fnf@cygnus.com) 21 22if $tracelevel then { 23 strace $tracelevel 24} 25 26set prms_id 0 27set bug_id 0 28 29# This only works with native configurations 30if ![isnative] then { 31 return 32} 33 34set testfile "pthreads" 35set srcfile ${testfile}.c 36set binfile ${objdir}/${subdir}/${testfile} 37 38# regexp for "horizontal" text (i.e. doesn't include newline or 39# carriage return) 40set horiz "\[^\n\r\]*" 41 42if [istarget "*-*-linux"] then { 43 set target_cflags "-D_MIT_POSIX_THREADS" 44} else { 45 set target_cflags "" 46} 47 48if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } { 49 return -1 50} 51 52 53# Start with a fresh gdb. 54 55gdb_exit 56gdb_start 57gdb_reinitialize_dir $srcdir/$subdir 58gdb_load ${binfile} 59 60gdb_test "set print sevenbit-strings" "" 61#gdb_test "set print address off" "" 62gdb_test "set width 0" "" 63 64# We'll need this when we send_gdb a ^C to GDB. Need to do it before we 65# run the program and gdb starts saving and restoring tty states. 66# On Ultrix, we don't need it and it is really slow (because shell_escape 67# doesn't use vfork). 68if ![istarget "*-*-ultrix*"] then { 69 gdb_test "shell stty intr '^C'" "" 70} 71 72proc all_threads_running {} { 73 global gdb_prompt 74 global srcfile 75 76 # Reset all the counters to zero. 77 gdb_test "set var common_routine::hits=0" "" 78 gdb_test "set var common_routine::from_thread1=0" "" 79 gdb_test "set var common_routine::from_thread2=0" "" 80 gdb_test "set var common_routine::from_main=0" "" 81 gdb_test "set var common_routine::full_coverage=0" "" 82 83 # Disable all breakpoints. 84 gdb_test "disable" "" 85 86 # Set up a breakpoint that will cause us to stop when we have 87 # been called 15 times. This should be plenty of time to allow 88 # every thread to run at least once, since each thread sleeps for 89 # one second between calls to common_routine. 90 gdb_test "tbreak common_routine if hits >= 15" "" 91 92 # Start all the threads running again and wait for the inferior 93 # to stop. Since no other breakpoints are set at this time 94 # we should stop only when we have been previously called 15 times. 95 96 send_gdb "continue\n" 97 gdb_expect { 98 -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {} 99 default { 100 fail "continue until common routine run 15 times" 101 return 0 102 } 103 timeout { 104 fail "continue until common routine run 15 times (timeout)" 105 return 0 106 } 107 } 108 109 # Check that we stopped when we actually expected to stop, by 110 # verifying that there have been 15 previous hits. 111 112 # NOTE: Because of synchronization behavior, it is possible for 113 # more than one thread to increment "hits" between one breakpoint 114 # trap and the next. So stopping after 16 or 17 hits should be 115 # considered acceptable. 116 117 send_gdb "p common_routine::hits\n" 118 gdb_expect { 119 -re ".*= 15\r\n$gdb_prompt $" { 120 pass "stopped before calling common_routine 15 times" 121 } 122 -re ".*= 16\r\n$gdb_prompt $" { 123 pass "stopped before calling common_routine 15 times (16 times)" 124 } 125 -re ".*= 17\r\n$gdb_prompt $" { 126 pass "stopped before calling common_routine 15 times (17 times)" 127 } 128 default { 129 fail "stopped before calling common_routine 15 times" 130 return 0 131 } 132 -re ".*$gdb_prompt $" { 133 fail "stopped before calling common_routine 15 times" 134 return 0 135 } 136 timeout { 137 fail "stopped before calling common_routine 15 times (timeout)" 138 return 0 139 } 140 } 141 142 # Also check that all of the threads have run, which will only be true 143 # if the full_coverage variable is set. 144 145 send_gdb "p common_routine::full_coverage\n" 146 gdb_expect { 147 -re ".* = 1.*$gdb_prompt $" {} 148 -re ".* = 0.*$gdb_prompt $" { 149 fail "some threads didn't run" 150 return 0 151 } 152 default { 153 fail "some threads didn't run" 154 return 0 155 } 156 timeout { 157 fail "some threads didn't run (timeout)" 158 return 0 159 } 160 } 161 162 # Looks fine, return success. 163 return 1 164} 165 166proc test_startup {} { 167 global srcdir srcfile gdb_prompt expect_out 168 global horiz 169 global main_id thread1_id thread2_id 170 171 # We should be able to do an info threads before starting any others. 172 send_gdb "info threads\n" 173 gdb_expect { 174 -re ".*Thread.*main.*$gdb_prompt $" { 175 pass "info threads" 176 } 177 -re "\r\n$gdb_prompt $" { 178 unsupported "gdb does not support pthreads for this machine" 179 return 0 180 } 181 } 182 183 # Extract the thread id number of main thread from "info threads" output. 184 send_gdb "info threads\n" 185 gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" 186 set main_id $expect_out(1,string) 187 188 # Check that we can continue and create the first thread. 189 gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*" 190 gdb_test "continue" \ 191 "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \ 192 "Continue to creation of first thread" 193 gdb_test "disable" "" 194 195 # Extract the thread id number of thread 1 from "info threads" output. 196 send_gdb "info threads\n" 197 gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" 198 set thread1_id $expect_out(1,string) 199 200 # Check that we can continue and create the second thread, 201 # ignoring the first thread for the moment. 202 gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*" 203 gdb_test "continue" \ 204 "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \ 205 "Continue to creation of second thread" 206 207 # Extract the thread id number of thread 2 from "info threads" output. 208 send_gdb "info threads\n" 209 gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" 210 set thread2_id $expect_out(1,string) 211 212 return 1 213} 214 215proc check_control_c {} { 216 global gdb_prompt 217 218 # Verify that all threads are running. 219 if [all_threads_running] then { 220 pass "All threads running after startup" 221 } 222 223 # Send a continue followed by ^C to the process to stop it. 224 send_gdb "continue\n" 225 gdb_expect { 226 -re "Continuing." { 227 pass "Continue with all threads running" 228 } 229 timeout { 230 fail "Continue with all threads running (timeout)" 231 } 232 } 233 after 2000 234 send_gdb "\003" 235 set description "Stopped with a ^C" 236 gdb_expect { 237 -re "Program received signal SIGINT.*$gdb_prompt $" { 238 pass $description 239 } 240 -re "Quit.*$gdb_prompt $" { 241 pass $description 242 } 243 timeout { 244 fail "$description (timeout)" 245 return 1; 246 } 247 } 248 gdb_test "bt" "" 249 250 # Verify that all threads can be run again after a ^C stop. 251 if [all_threads_running] then { 252 pass "All threads running after continuing from ^C stop" 253 } 254 return 0; 255} 256 257proc check_backtraces {} { 258 global gdb_prompt main_id thread1_id thread2_id 259 260 # Check that the "thread apply N backtrace" command works 261 262 gdb_test "thread apply $main_id backtrace" \ 263 ".* in main \\(argc=.*, argv=.*\\).*" \ 264 "check backtrace from main thread" 265 gdb_test "thread apply $thread1_id backtrace" \ 266 ".* in thread1 \\(arg=0xfeedface\\).*" \ 267 "check backtrace from thread 1" 268 gdb_test "thread apply $thread2_id backtrace" \ 269 ".* in thread2 \\(arg=0xdeadbeef\\).*" \ 270 "check backtrace from thread 2" 271 272 # Check that we can apply the backtrace command to all 273 # three threads with a single gdb command 274 275 gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \ 276 ".* in main .* in thread1 .* in thread2.*" \ 277 "apply backtrace command to all three threads" 278 279 # Check that we can do thread specific backtraces 280 # This also tests that we can do thread specific breakpoints. 281 282 gdb_test "break common_routine thread $thread2_id" \ 283 "Breakpoint .* at 0x.* file .* line .*" \ 284 "set break at common_routine in thread 2" 285 286 send_gdb "continue\n" 287 gdb_expect { 288 -re "Breakpoint .* common_routine \\(arg=2\\).*" { 289 pass "continue to bkpt at common_routine in thread 2" 290 send_gdb "backtrace\n" 291 gdb_expect { 292 -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" { 293 pass "backtrace from thread 2 bkpt in common_routine" 294 } 295 default { 296 fail "backtrace from thread 2 bkpt in common_routine" 297 } 298 timeout { 299 fail "backtrace from thread 2 bkpt in common_routine (timeout)" 300 } 301 } 302 } 303 -re "Breakpoint .* common_routine \\(arg=0\\).*" { 304 fail "continue to bkpt at common_routine in thread 2 (arg=0)" 305 } 306 -re "Breakpoint .* common_routine \\(arg=1\\).*" { 307 fail "continue to bkpt at common_routine in thread 2 (arg=1)" 308 } 309 -re ".*$gdb_prompt" { 310 fail "continue to bkpt at common_routine in thread 2" 311 } 312 default { 313 fail "continue to bkpt at common_routine in thread 2 (default)" 314 } 315 timeout { 316 fail "continue to bkpt at common_routine in thread 2 (timeout)" 317 } 318 } 319} 320 321setup_xfail "alpha-*-osf*" 322if [runto_main] then { 323 clear_xfail "alpha-*-osf*" 324 if [test_startup] then { 325 if [check_control_c] then { 326 warning "Could not stop child with ^C; skipping rest of tests.\n" 327 return; 328 } 329 check_backtraces 330 } 331} 332clear_xfail "alpha-*-osf*" 333