gdb/testsuite/gdb.threads/pthreads.exp

   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 2 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, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 # Please email any bugs, comments, and/or additions to this file to:
  19 # bug-gdb@prep.ai.mit.edu
  20
  21 # This file was written by Fred Fish. (fnf@cygnus.com)
  22
  23 if $tracelevel then {
  24         strace $tracelevel
  25 }
  26
  27 set prms_id 0
  28 set bug_id 0
  29
  30 # This only works with native configurations
  31 if ![isnative] then {
  32     return
  33 }
  34
  35 set testfile "pthreads"
  36 set srcfile ${testfile}.c
  37 set binfile ${objdir}/${subdir}/${testfile}
  38
  39 # regexp for "horizontal" text (i.e. doesn't include newline or
  40 # carriage return)
  41 set horiz "\[^\n\r\]*"
  42
  43 if [istarget "*-*-linux"] then {
  44     set target_cflags "-D_MIT_POSIX_THREADS"
  45 } else {
  46     set target_cflags ""
  47 }
  48
  49 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
  50     return -1
  51 }
  52
  53
  54 # Start with a fresh gdb.
  55
  56 gdb_exit
  57 gdb_start
  58 gdb_reinitialize_dir $srcdir/$subdir
  59 gdb_load ${binfile}
  60
  61 gdb_test "set print sevenbit-strings" ""
  62 #gdb_test "set print address off" ""
  63 gdb_test "set width 0" ""
  64
  65 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  66 # run the program and gdb starts saving and restoring tty states.
  67 # On Ultrix, we don't need it and it is really slow (because shell_escape
  68 # doesn't use vfork).
  69 if ![istarget "*-*-ultrix*"] then {
  70     gdb_test "shell stty intr '^C'" ""
  71 }
  72
  73 proc all_threads_running {} {
  74     global gdb_prompt
  75     global srcfile
  76
  77     # Reset all the counters to zero.
  78     gdb_test "set var common_routine::hits=0" ""
  79     gdb_test "set var common_routine::from_thread1=0" ""
  80     gdb_test "set var common_routine::from_thread2=0" ""
  81     gdb_test "set var common_routine::from_main=0" ""
  82     gdb_test "set var common_routine::full_coverage=0" ""
  83
  84     # Disable all breakpoints.
  85     gdb_test "disable" ""
  86
  87     # Set up a breakpoint that will cause us to stop when we have
  88     # been called 15 times.  This should be plenty of time to allow
  89     # every thread to run at least once, since each thread sleeps for
  90     # one second between calls to common_routine.
  91     gdb_test "tbreak common_routine if hits >= 15" ""
  92
  93     # Start all the threads running again and wait for the inferior
  94     # to stop.  Since no other breakpoints are set at this time
  95     # we should stop only when we have been previously called 15 times.
  96
  97     send_gdb "continue\n"
  98     gdb_expect {
  99         -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
 100         default {
 101             fail "continue until common routine run 15 times"
 102             return 0
 103         }
 104         timeout {
 105             fail "continue until common routine run 15 times (timeout)"
 106             return 0
 107         }
 108     }
 109
 110     # Check that we stopped when we actually expected to stop, by
 111     # verifying that there have been 15 previous hits.
 112
 113     # NOTE: Because of synchronization behavior, it is possible for
 114     # more than one thread to increment "hits" between one breakpoint
 115     # trap and the next.  So stopping after 16 or 17 hits should be
 116     # considered acceptable.
 117
 118     send_gdb "p common_routine::hits\n"
 119     gdb_expect {
 120         -re ".*= 15\r\n$gdb_prompt $" {
 121             pass "stopped before calling common_routine 15 times"
 122         }
 123         -re ".*= 16\r\n$gdb_prompt $" {
 124             pass "stopped before calling common_routine 15 times (16 times)"
 125         }
 126         -re ".*= 17\r\n$gdb_prompt $" {
 127             pass "stopped before calling common_routine 15 times (17 times)"
 128         }
 129         default {
 130             fail "stopped before calling common_routine 15 times"
 131             return 0
 132         }
 133         -re ".*$gdb_prompt $" {
 134             fail "stopped before calling common_routine 15 times"
 135             return 0
 136         }
 137         timeout {
 138             fail "stopped before calling common_routine 15 times (timeout)"
 139             return 0
 140         }
 141     }
 142
 143     # Also check that all of the threads have run, which will only be true
 144     # if the full_coverage variable is set.
 145
 146     send_gdb "p common_routine::full_coverage\n"
 147     gdb_expect {
 148         -re ".* = 1.*$gdb_prompt $" {}
 149         -re ".* = 0.*$gdb_prompt $" {
 150             fail "some threads didn't run"
 151             return 0
 152         }
 153         default {
 154             fail "some threads didn't run"
 155             return 0
 156         }
 157         timeout {
 158             fail "some threads didn't run (timeout)"
 159             return 0
 160         }
 161     }
 162
 163     # Looks fine, return success.
 164     return 1
 165 }
 166
 167 proc test_startup {} {
 168     global srcdir srcfile gdb_prompt expect_out
 169     global horiz
 170     global main_id thread1_id thread2_id
 171
 172     # We should be able to do an info threads before starting any others.
 173     send_gdb "info threads\n"
 174     gdb_expect {
 175         -re ".*Thread.*main.*$gdb_prompt $" {
 176             pass "info threads"
 177         }
 178         -re "\r\n$gdb_prompt $" {
 179             unsupported "gdb does not support pthreads for this machine"
 180             return 0
 181         }
 182     }
 183
 184     # Extract the thread id number of main thread from "info threads" output.
 185     send_gdb "info threads\n"
 186     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
 187     set main_id $expect_out(1,string)
 188
 189     # Check that we can continue and create the first thread.
 190     gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
 191     gdb_test "continue" \
 192             "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
 193             "Continue to creation of first thread"
 194     gdb_test "disable" ""
 195
 196     # Extract the thread id number of thread 1 from "info threads" output.
 197     send_gdb "info threads\n"
 198     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
 199     set thread1_id $expect_out(1,string)
 200
 201     # Check that we can continue and create the second thread,
 202     # ignoring the first thread for the moment.
 203     gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
 204     gdb_test "continue" \
 205             "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
 206             "Continue to creation of second thread"
 207
 208     # Extract the thread id number of thread 2 from "info threads" output.
 209     send_gdb "info threads\n"
 210     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
 211     set thread2_id $expect_out(1,string)
 212
 213     return 1
 214 }
 215
 216 proc check_control_c {} {
 217     global gdb_prompt
 218
 219     # Verify that all threads are running.
 220     if [all_threads_running] then {
 221         pass "All threads running after startup"
 222     }
 223
 224     # Send a continue followed by ^C to the process to stop it.
 225     send_gdb "continue\n"
 226     gdb_expect {
 227         -re "Continuing." {
 228             pass "Continue with all threads running"
 229         }
 230         timeout {
 231             fail "Continue with all threads running (timeout)"
 232         }
 233     }
 234     after 2000
 235     send_gdb "\003"
 236     set description "Stopped with a ^C"
 237     gdb_expect {
 238         -re "Program received signal SIGINT.*$gdb_prompt $" {
 239             pass $description
 240         }
 241         -re "Quit.*$gdb_prompt $" {
 242             pass $description
 243         }
 244         timeout {
 245             fail "$description (timeout)"
 246             return 1;
 247         }
 248     }
 249     gdb_test "bt" ""
 250
 251     # Verify that all threads can be run again after a ^C stop.
 252     if [all_threads_running] then {
 253         pass "All threads running after continuing from ^C stop"
 254     }
 255     return 0;
 256 }
 257
 258 proc check_backtraces {} {
 259     global gdb_prompt main_id thread1_id thread2_id
 260
 261     # Check that the "thread apply N backtrace" command works
 262
 263     gdb_test "thread apply $main_id backtrace" \
 264             ".* in main \\(argc=.*, argv=.*\\).*" \
 265             "check backtrace from main thread"
 266     gdb_test "thread apply $thread1_id backtrace" \
 267             ".* in thread1 \\(arg=0xfeedface\\).*" \
 268             "check backtrace from thread 1"
 269     gdb_test "thread apply $thread2_id backtrace" \
 270             ".* in thread2 \\(arg=0xdeadbeef\\).*" \
 271             "check backtrace from thread 2"
 272
 273     # Check that we can apply the backtrace command to all
 274     # three threads with a single gdb command
 275
 276     gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
 277             ".* in main .* in thread1 .* in thread2.*" \
 278             "apply backtrace command to all three threads"
 279
 280     # Check that we can do thread specific backtraces
 281     # This also tests that we can do thread specific breakpoints.
 282
 283     gdb_test "break common_routine thread $thread2_id" \
 284             "Breakpoint .* at 0x.* file .* line .*" \
 285             "set break at common_routine in thread 2"
 286
 287     send_gdb "continue\n"
 288     gdb_expect {
 289         -re "Breakpoint .* common_routine \\(arg=2\\).*" {
 290             pass "continue to bkpt at common_routine in thread 2"
 291             send_gdb "backtrace\n"
 292             gdb_expect {
 293                 -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
 294                     pass "backtrace from thread 2 bkpt in common_routine"
 295                 }
 296                 default {
 297                     fail "backtrace from thread 2 bkpt in common_routine"
 298                 }
 299                 timeout {
 300                     fail "backtrace from thread 2 bkpt in common_routine (timeout)"
 301                 }
 302             }
 303         }
 304         -re "Breakpoint .* common_routine \\(arg=0\\).*" {
 305             fail "continue to bkpt at common_routine in thread 2 (arg=0)"
 306         }
 307         -re "Breakpoint .* common_routine \\(arg=1\\).*" {
 308             fail "continue to bkpt at common_routine in thread 2 (arg=1)"
 309         }
 310         -re ".*$gdb_prompt" {
 311             fail "continue to bkpt at common_routine in thread 2"
 312         }
 313         default {
 314             fail "continue to bkpt at common_routine in thread 2 (default)"
 315         }
 316         timeout {
 317             fail "continue to bkpt at common_routine in thread 2 (timeout)"
 318         }
 319     }
 320 }
 321
 322 setup_xfail "alpha-*-osf*"
 323 if [runto_main] then {
 324     clear_xfail "alpha-*-osf*"
 325     if [test_startup] then {
 326         if [check_control_c] then {
 327             warning "Could not stop child with ^C; skipping rest of tests.\n"
 328             return;
 329         }
 330         check_backtraces
 331     }
 332 }
 333 clear_xfail "alpha-*-osf*"