gdb/testsuite/gdb.threads/pthreads.exp

   1 # Copyright (C) 1996-1997, 1999-2004, 2007-2012 Free Software
   2 # 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
  20 standard_testfile
  21
  22 # regexp for "horizontal" text (i.e. doesn't include newline or
  23 # carriage return)
  24 set horiz "\[^\n\r\]*"
  25
  26 if [istarget "*-*-linux"] then {
  27     set target_cflags "-D_MIT_POSIX_THREADS"
  28 } else {
  29     set target_cflags ""
  30 }
  31
  32 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
  33     return -1
  34 }
  35
  36 clean_restart ${binfile}
  37
  38 gdb_test_no_output "set print sevenbit-strings"
  39 #gdb_test_no_output "set print address off"
  40 gdb_test_no_output "set width 0"
  41
  42 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  43 # run the program and gdb starts saving and restoring tty states.
  44 # On Ultrix, we don't need it and it is really slow (because shell_escape
  45 # doesn't use vfork).
  46 if ![istarget "*-*-ultrix*"] then {
  47     gdb_test "shell stty intr '^C'" ".*"
  48 }
  49
  50 proc all_threads_running {} {
  51     global gdb_prompt
  52     global srcfile
  53
  54     # Reset all the counters to zero.
  55     gdb_test_no_output "set var common_routine::hits=0"
  56     gdb_test_no_output "set var common_routine::from_thread1=0"
  57     gdb_test_no_output "set var common_routine::from_thread2=0"
  58     gdb_test_no_output "set var common_routine::from_main=0"
  59     gdb_test_no_output "set var common_routine::full_coverage=0"
  60
  61     # Disable all breakpoints.
  62     gdb_test_no_output "disable"
  63
  64     # Set up a breakpoint that will cause us to stop when we have
  65     # been called 15 times.  This should be plenty of time to allow
  66     # every thread to run at least once, since each thread sleeps for
  67     # one second between calls to common_routine.
  68     gdb_test "tbreak common_routine if hits >= 15" ".*"
  69
  70     # Start all the threads running again and wait for the inferior
  71     # to stop.  Since no other breakpoints are set at this time
  72     # we should stop only when we have been previously called 15 times.
  73
  74     set return_me 1
  75
  76     gdb_test_multiple "continue" "continue until common routine run 15 times" {
  77         -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {
  78             set return_me 0
  79         }
  80     }
  81
  82     if { $return_me == 1 } then {
  83         return 0;
  84     }
  85
  86     # Check that we stopped when we actually expected to stop, by
  87     # verifying that there have been 15 previous hits.
  88
  89     # NOTE: Because of synchronization behavior, it is possible for
  90     # more than one thread to increment "hits" between one breakpoint
  91     # trap and the next.  So stopping after 16 or 17 hits should be
  92     # considered acceptable.
  93
  94     gdb_test_multiple "p common_routine::hits" \
  95         "stopped before calling common_routine 15 times" {
  96             -re ".*= 15\r\n$gdb_prompt $" {
  97                 pass "stopped before calling common_routine 15 times"
  98             }
  99             -re ".*= 16\r\n$gdb_prompt $" {
 100                 pass "stopped before calling common_routine 15 times (16 times)"
 101             }
 102             -re ".*= 17\r\n$gdb_prompt $" {
 103                 pass "stopped before calling common_routine 15 times (17 times)"
 104             }
 105         }
 106
 107     # Also check that all of the threads have run, which will only be true
 108     # if the full_coverage variable is set.
 109
 110     set return_me 1
 111     gdb_test_multiple "p common_routine::full_coverage" \
 112         "some threads didn't run" {
 113             -re ".* = 1.*$gdb_prompt $" {
 114             }
 115             -re ".* = 0.*$gdb_prompt $" {
 116                 fail "some threads didn't run"
 117                 set return_me 0
 118             }
 119         }
 120
 121     # Looks fine, return success.
 122     return $return_me
 123 }
 124
 125 proc test_startup {} {
 126     global srcdir srcfile gdb_prompt expect_out
 127     global horiz
 128     global main_id thread1_id thread2_id
 129
 130     # We should be able to do an info threads before starting any others.
 131     set return_me 1
 132     gdb_test_multiple "info threads" "info threads" {
 133         -re ".*Thread.*main.*$gdb_prompt $" {
 134             pass "info threads"
 135             set return_me 0
 136         }
 137         -re "\r\n$gdb_prompt $" {
 138             unsupported "gdb does not support pthreads for this machine"
 139         }
 140     }
 141
 142     if { $return_me == 1 } then {
 143         return 0;
 144     }
 145
 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 $)" {
 149         }
 150     }
 151
 152     set main_id $expect_out(1,string)
 153
 154     # Check that we can continue and create the first thread.
 155     gdb_test "break thread1" "Breakpoint .* file .*$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"
 160
 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 $)" {
 164         }
 165     }
 166
 167     set thread1_id $expect_out(1,string)
 168
 169     # Check that we can continue and create the second thread,
 170     # ignoring the first thread for the moment.
 171     gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
 172     gdb_test "continue" \
 173             "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
 174             "Continue to creation of second thread"
 175
 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 $)" {
 179         }
 180     }
 181
 182     set thread2_id $expect_out(1,string)
 183
 184     return 1
 185 }
 186
 187 proc check_control_c {} {
 188     global gdb_prompt
 189
 190     # Verify that all threads are running.
 191     if [all_threads_running] then {
 192         pass "All threads running after startup"
 193     }
 194
 195     # Send a continue followed by ^C to the process to stop it.
 196     gdb_test_multiple "continue" "continue with all threads running" {
 197         -re "Continuing." {
 198             pass "Continue with all threads running"
 199         }
 200     }
 201     after 2000
 202     send_gdb "\003"
 203     set description "Stopped with a ^C"
 204     gdb_expect {
 205         -re "Program received signal SIGINT.*$gdb_prompt $" {
 206             pass $description
 207         }
 208         -re "Quit.*$gdb_prompt $" {
 209             pass $description
 210         }
 211         timeout {
 212             fail "$description (timeout)"
 213             return 1;
 214         }
 215     }
 216     gdb_test "bt" ".*"
 217
 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"
 221     }
 222     return 0;
 223 }
 224
 225 proc check_backtraces {} {
 226     global gdb_prompt main_id thread1_id thread2_id
 227
 228     # Check that the "thread apply N backtrace" command works
 229
 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"
 239
 240     # Check that we can apply the backtrace command to all
 241     # three threads with a single gdb command
 242
 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"
 246
 247     # Check that we can do thread specific backtraces
 248     # This also tests that we can do thread specific breakpoints.
 249
 250     gdb_test "break common_routine thread $thread2_id" \
 251             "Breakpoint .* at 0x.* file .* line .*" \
 252             "set break at common_routine in thread 2"
 253
 254     gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" {
 255         -re "Breakpoint .* common_routine \\(arg=2\\).*$gdb_prompt $" {
 256             pass "continue to bkpt at common_routine in thread 2"
 257             gdb_test "backtrace" \
 258                 "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \
 259                 "backtrace from thread 2 bkpt in common_routine"
 260         }
 261         -re "Breakpoint .* common_routine \\(arg=0\\).*$gdb_prompt $" {
 262             fail "continue to bkpt at common_routine in thread 2 (arg=0)"
 263         }
 264         -re "Breakpoint .* common_routine \\(arg=1\\).*$gdb_prompt $" {
 265             fail "continue to bkpt at common_routine in thread 2 (arg=1)"
 266         }
 267     }
 268 }
 269
 270 setup_xfail "alpha-*-osf*"
 271 if [runto_main] then {
 272     clear_xfail "alpha-*-osf*"
 273     if [test_startup] then {
 274         if [check_control_c] then {
 275             warning "Could not stop child with ^C; skipping rest of tests.\n"
 276             return;
 277         }
 278         check_backtraces
 279     }
 280 }
 281 clear_xfail "alpha-*-osf*"