gdb/testsuite/gdb.threads/pthreads.exp

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