gdb/testsuite/gdb.threads/pthreads.exp

   1 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008,
   2 # 2009, 2010 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
  19 if $tracelevel then {
  20         strace $tracelevel
  21 }
  22
  23 set prms_id 0
  24 set bug_id 0
  25
  26 # This only works with native configurations
  27 if ![isnative] then {
  28     return
  29 }
  30
  31 set testfile "pthreads"
  32 set srcfile ${testfile}.c
  33 set binfile ${objdir}/${subdir}/${testfile}
  34
  35 # regexp for "horizontal" text (i.e. doesn't include newline or
  36 # carriage return)
  37 set horiz "\[^\n\r\]*"
  38
  39 if [istarget "*-*-linux"] then {
  40     set target_cflags "-D_MIT_POSIX_THREADS"
  41 } else {
  42     set target_cflags ""
  43 }
  44
  45 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
  46     return -1
  47 }
  48
  49
  50 # Start with a fresh gdb.
  51
  52 gdb_exit
  53 gdb_start
  54 gdb_reinitialize_dir $srcdir/$subdir
  55 gdb_load ${binfile}
  56
  57 gdb_test "set print sevenbit-strings" ""
  58 #gdb_test "set print address off" ""
  59 gdb_test "set width 0" ""
  60
  61 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  62 # run the program and gdb starts saving and restoring tty states.
  63 # On Ultrix, we don't need it and it is really slow (because shell_escape
  64 # doesn't use vfork).
  65 if ![istarget "*-*-ultrix*"] then {
  66     gdb_test "shell stty intr '^C'" ""
  67 }
  68
  69 proc all_threads_running {} {
  70     global gdb_prompt
  71     global srcfile
  72
  73     # Reset all the counters to zero.
  74     gdb_test "set var common_routine::hits=0" ""
  75     gdb_test "set var common_routine::from_thread1=0" ""
  76     gdb_test "set var common_routine::from_thread2=0" ""
  77     gdb_test "set var common_routine::from_main=0" ""
  78     gdb_test "set var common_routine::full_coverage=0" ""
  79
  80     # Disable all breakpoints.
  81     gdb_test "disable" ""
  82
  83     # Set up a breakpoint that will cause us to stop when we have
  84     # been called 15 times.  This should be plenty of time to allow
  85     # every thread to run at least once, since each thread sleeps for
  86     # one second between calls to common_routine.
  87     gdb_test "tbreak common_routine if hits >= 15" ""
  88
  89     # Start all the threads running again and wait for the inferior
  90     # to stop.  Since no other breakpoints are set at this time
  91     # we should stop only when we have been previously called 15 times.
  92
  93     send_gdb "continue\n"
  94     gdb_expect {
  95         -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
  96         default {
  97             fail "continue until common routine run 15 times"
  98             return 0
  99         }
 100         timeout {
 101             fail "continue until common routine run 15 times (timeout)"
 102             return 0
 103         }
 104     }
 105
 106     # Check that we stopped when we actually expected to stop, by
 107     # verifying that there have been 15 previous hits.
 108
 109     # NOTE: Because of synchronization behavior, it is possible for
 110     # more than one thread to increment "hits" between one breakpoint
 111     # trap and the next.  So stopping after 16 or 17 hits should be
 112     # considered acceptable.
 113
 114     send_gdb "p common_routine::hits\n"
 115     gdb_expect {
 116         -re ".*= 15\r\n$gdb_prompt $" {
 117             pass "stopped before calling common_routine 15 times"
 118         }
 119         -re ".*= 16\r\n$gdb_prompt $" {
 120             pass "stopped before calling common_routine 15 times (16 times)"
 121         }
 122         -re ".*= 17\r\n$gdb_prompt $" {
 123             pass "stopped before calling common_routine 15 times (17 times)"
 124         }
 125         default {
 126             fail "stopped before calling common_routine 15 times"
 127             return 0
 128         }
 129         -re ".*$gdb_prompt $" {
 130             fail "stopped before calling common_routine 15 times"
 131             return 0
 132         }
 133         timeout {
 134             fail "stopped before calling common_routine 15 times (timeout)"
 135             return 0
 136         }
 137     }
 138
 139     # Also check that all of the threads have run, which will only be true
 140     # if the full_coverage variable is set.
 141
 142     send_gdb "p common_routine::full_coverage\n"
 143     gdb_expect {
 144         -re ".* = 1.*$gdb_prompt $" {}
 145         -re ".* = 0.*$gdb_prompt $" {
 146             fail "some threads didn't run"
 147             return 0
 148         }
 149         default {
 150             fail "some threads didn't run"
 151             return 0
 152         }
 153         timeout {
 154             fail "some threads didn't run (timeout)"
 155             return 0
 156         }
 157     }
 158
 159     # Looks fine, return success.
 160     return 1
 161 }
 162
 163 proc test_startup {} {
 164     global srcdir srcfile gdb_prompt expect_out
 165     global horiz
 166     global main_id thread1_id thread2_id
 167
 168     # We should be able to do an info threads before starting any others.
 169     send_gdb "info threads\n"
 170     gdb_expect {
 171         -re ".*Thread.*main.*$gdb_prompt $" {
 172             pass "info threads"
 173         }
 174         -re "\r\n$gdb_prompt $" {
 175             unsupported "gdb does not support pthreads for this machine"
 176             return 0
 177         }
 178     }
 179
 180     # Extract the thread id number of main thread from "info threads" output.
 181     send_gdb "info threads\n"
 182     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
 183     set main_id $expect_out(1,string)
 184
 185     # Check that we can continue and create the first thread.
 186     gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
 187     gdb_test "continue" \
 188             "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
 189             "Continue to creation of first thread"
 190     gdb_test "disable" ""
 191
 192     # Extract the thread id number of thread 1 from "info threads" output.
 193     send_gdb "info threads\n"
 194     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
 195     set thread1_id $expect_out(1,string)
 196
 197     # Check that we can continue and create the second thread,
 198     # ignoring the first thread for the moment.
 199     gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
 200     gdb_test "continue" \
 201             "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
 202             "Continue to creation of second thread"
 203
 204     # Extract the thread id number of thread 2 from "info threads" output.
 205     send_gdb "info threads\n"
 206     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
 207     set thread2_id $expect_out(1,string)
 208
 209     return 1
 210 }
 211
 212 proc check_control_c {} {
 213     global gdb_prompt
 214
 215     # Verify that all threads are running.
 216     if [all_threads_running] then {
 217         pass "All threads running after startup"
 218     }
 219
 220     # Send a continue followed by ^C to the process to stop it.
 221     send_gdb "continue\n"
 222     gdb_expect {
 223         -re "Continuing." {
 224             pass "Continue with all threads running"
 225         }
 226         timeout {
 227             fail "Continue with all threads running (timeout)"
 228         }
 229     }
 230     after 2000
 231     send_gdb "\003"
 232     set description "Stopped with a ^C"
 233     gdb_expect {
 234         -re "Program received signal SIGINT.*$gdb_prompt $" {
 235             pass $description
 236         }
 237         -re "Quit.*$gdb_prompt $" {
 238             pass $description
 239         }
 240         timeout {
 241             fail "$description (timeout)"
 242             return 1;
 243         }
 244     }
 245     gdb_test "bt" ""
 246
 247     # Verify that all threads can be run again after a ^C stop.
 248     if [all_threads_running] then {
 249         pass "All threads running after continuing from ^C stop"
 250     }
 251     return 0;
 252 }
 253
 254 proc check_backtraces {} {
 255     global gdb_prompt main_id thread1_id thread2_id
 256
 257     # Check that the "thread apply N backtrace" command works
 258
 259     gdb_test "thread apply $main_id backtrace" \
 260             ".* in main \\(argc=.*, argv=.*\\).*" \
 261             "check backtrace from main thread"
 262     gdb_test "thread apply $thread1_id backtrace" \
 263             ".* in thread1 \\(arg=0xfeedface\\).*" \
 264             "check backtrace from thread 1"
 265     gdb_test "thread apply $thread2_id backtrace" \
 266             ".* in thread2 \\(arg=0xdeadbeef\\).*" \
 267             "check backtrace from thread 2"
 268
 269     # Check that we can apply the backtrace command to all
 270     # three threads with a single gdb command
 271
 272     gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
 273             ".* in main .* in thread1 .* in thread2.*" \
 274             "apply backtrace command to all three threads"
 275
 276     # Check that we can do thread specific backtraces
 277     # This also tests that we can do thread specific breakpoints.
 278
 279     gdb_test "break common_routine thread $thread2_id" \
 280             "Breakpoint .* at 0x.* file .* line .*" \
 281             "set break at common_routine in thread 2"
 282
 283     send_gdb "continue\n"
 284     gdb_expect {
 285         -re "Breakpoint .* common_routine \\(arg=2\\).*" {
 286             pass "continue to bkpt at common_routine in thread 2"
 287             send_gdb "backtrace\n"
 288             gdb_expect {
 289                 -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
 290                     pass "backtrace from thread 2 bkpt in common_routine"
 291                 }
 292                 default {
 293                     fail "backtrace from thread 2 bkpt in common_routine"
 294                 }
 295                 timeout {
 296                     fail "backtrace from thread 2 bkpt in common_routine (timeout)"
 297                 }
 298             }
 299         }
 300         -re "Breakpoint .* common_routine \\(arg=0\\).*" {
 301             fail "continue to bkpt at common_routine in thread 2 (arg=0)"
 302         }
 303         -re "Breakpoint .* common_routine \\(arg=1\\).*" {
 304             fail "continue to bkpt at common_routine in thread 2 (arg=1)"
 305         }
 306         -re ".*$gdb_prompt" {
 307             fail "continue to bkpt at common_routine in thread 2"
 308         }
 309         default {
 310             fail "continue to bkpt at common_routine in thread 2 (default)"
 311         }
 312         timeout {
 313             fail "continue to bkpt at common_routine in thread 2 (timeout)"
 314         }
 315     }
 316 }
 317
 318 setup_xfail "alpha-*-osf*"
 319 if [runto_main] then {
 320     clear_xfail "alpha-*-osf*"
 321     if [test_startup] then {
 322         if [check_control_c] then {
 323             warning "Could not stop child with ^C; skipping rest of tests.\n"
 324             return;
 325         }
 326         check_backtraces
 327     }
 328 }
 329 clear_xfail "alpha-*-osf*"