gdb/testsuite/gdb.threads/pthreads.exp

   1 # Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  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
  22 if $tracelevel then {
  23         strace $tracelevel
  24 }
  25
  26 set prms_id 0
  27 set bug_id 0
  28
  29 # This only works with native configurations
  30 if ![isnative] then {
  31     return
  32 }
  33
  34 set testfile "pthreads"
  35 set srcfile ${testfile}.c
  36 set binfile ${objdir}/${subdir}/${testfile}
  37
  38 # regexp for "horizontal" text (i.e. doesn't include newline or
  39 # carriage return)
  40 set horiz "\[^\n\r\]*"
  41
  42 set built_binfile 0
  43 if [istarget "*-*-linux"] then {
  44     set target_cflags "-D_MIT_POSIX_THREADS"
  45 } else {
  46     set target_cflags ""
  47 }
  48 set why_msg "unrecognized error"
  49 foreach lib {-lpthreads -lpthread -lthread} {
  50     set options "debug"
  51     lappend options "incdir=${objdir}/${subdir}"
  52     lappend options "libs=$lib"
  53     set ccout [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options]
  54     switch -regexp -- $ccout {
  55         ".*no posix threads support.*" {
  56             set why_msg "missing threads include file"
  57             break
  58         }
  59         ".*cannot open -lpthread.*" {
  60             set why_msg "missing runtime threads library"
  61         }
  62         ".*Can't find library for -lpthread.*" {
  63             set why_msg "missing runtime threads library"
  64         }
  65         {^$} {
  66             pass "successfully compiled posix threads test case"
  67             set built_binfile 1
  68             break
  69         }
  70     }
  71 }
  72 if {$built_binfile == "0"} {
  73     unsupported "Couldn't compile ${srcfile}, ${why_msg}"
  74     return -1
  75 }
  76
  77 # Now we can proceed with the real testing.
  78
  79 # Start with a fresh gdb.
  80
  81 gdb_exit
  82 gdb_start
  83 gdb_reinitialize_dir $srcdir/$subdir
  84 gdb_load ${binfile}
  85
  86 gdb_test "set print sevenbit-strings" ""
  87 #gdb_test "set print address off" ""
  88 gdb_test "set width 0" ""
  89
  90 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  91 # run the program and gdb starts saving and restoring tty states.
  92 # On Ultrix, we don't need it and it is really slow (because shell_escape
  93 # doesn't use vfork).
  94 if ![istarget "*-*-ultrix*"] then {
  95     gdb_test "shell stty intr '^C'" ""
  96 }
  97
  98 proc all_threads_running {} {
  99     global gdb_prompt
 100     global srcfile
 101
 102     # Reset all the counters to zero.
 103     gdb_test "set var common_routine::hits=0" ""
 104     gdb_test "set var common_routine::from_thread1=0" ""
 105     gdb_test "set var common_routine::from_thread2=0" ""
 106     gdb_test "set var common_routine::from_main=0" ""
 107     gdb_test "set var common_routine::full_coverage=0" ""
 108
 109     # Disable all breakpoints.
 110     gdb_test "disable" ""
 111
 112     # Set up a breakpoint that will cause us to stop when we have
 113     # been called 15 times.  This should be plenty of time to allow
 114     # every thread to run at least once, since each thread sleeps for
 115     # one second between calls to common_routine.
 116     gdb_test "tbreak common_routine if hits >= 15" ""
 117
 118     # Start all the threads running again and wait for the inferior
 119     # to stop.  Since no other breakpoints are set at this time
 120     # we should stop only when we have been previously called 15 times.
 121
 122     send_gdb "continue\n"
 123     gdb_expect {
 124         -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
 125         default {
 126             fail "continue until common routine run 15 times"
 127             return 0
 128         }
 129         timeout {
 130             fail "continue until common routine run 15 times (timeout)"
 131             return 0
 132         }
 133     }
 134
 135     # Check that we stopped when we actually expected to stop, by
 136     # verifying that there have been 15 previous hits.
 137
 138     # NOTE: Because of synchronization behavior, it is possible for
 139     # more than one thread to increment "hits" between one breakpoint
 140     # trap and the next.  So stopping after 16 or 17 hits should be
 141     # considered acceptable.
 142
 143     send_gdb "p common_routine::hits\n"
 144     gdb_expect {
 145         -re ".*= 15\r\n$gdb_prompt $" {
 146             pass "stopped before calling common_routine 15 times"
 147         }
 148         -re ".*= 16\r\n$gdb_prompt $" {
 149             pass "stopped before calling common_routine 15 times (16 times)"
 150         }
 151         -re ".*= 17\r\n$gdb_prompt $" {
 152             pass "stopped before calling common_routine 15 times (17 times)"
 153         }
 154         default {
 155             fail "stopped before calling common_routine 15 times"
 156             return 0
 157         }
 158         -re ".*$gdb_prompt $" {
 159             fail "stopped before calling common_routine 15 times"
 160             return 0
 161         }
 162         timeout {
 163             fail "stopped before calling common_routine 15 times (timeout)"
 164             return 0
 165         }
 166     }
 167
 168     # Also check that all of the threads have run, which will only be true
 169     # if the full_coverage variable is set.
 170
 171     send_gdb "p common_routine::full_coverage\n"
 172     gdb_expect {
 173         -re ".* = 1.*$gdb_prompt $" {}
 174         -re ".* = 0.*$gdb_prompt $" {
 175             fail "some threads didn't run"
 176             return 0
 177         }
 178         default {
 179             fail "some threads didn't run"
 180             return 0
 181         }
 182         timeout {
 183             fail "some threads didn't run (timeout)"
 184             return 0
 185         }
 186     }
 187
 188     # Looks fine, return success.
 189     return 1
 190 }
 191
 192 proc test_startup {} {
 193     global srcdir srcfile gdb_prompt expect_out
 194     global horiz
 195     global main_id thread1_id thread2_id
 196
 197     # We should be able to do an info threads before starting any others.
 198     send_gdb "info threads\n"
 199     gdb_expect {
 200         -re ".*Thread.*LWP.*main.*$gdb_prompt $" {
 201             pass "info threads"
 202         }
 203         -re "\r\n$gdb_prompt $" {
 204             pass "info threads"
 205             setup_xfail "*-*-*"
 206             fail "gdb does not support pthreads for this machine"
 207             return 0
 208         }
 209     }
 210
 211     # Extract the thread id number of main thread from "info threads" output.
 212     send_gdb "info threads\n"
 213     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
 214     set main_id $expect_out(1,string)
 215
 216     # Check that we can continue and create the first thread.
 217     gdb_test "break thread1" "Breakpoint .* file .*$srcdir.*"
 218     gdb_test "continue" \
 219             "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
 220             "Continue to creation of first thread"
 221     gdb_test "disable" ""
 222
 223     # Extract the thread id number of thread 1 from "info threads" output.
 224     send_gdb "info threads\n"
 225     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
 226     set thread1_id $expect_out(1,string)
 227
 228     # Check that we can continue and create the second thread,
 229     # ignoring the first thread for the moment.
 230     gdb_test "break thread2" "Breakpoint .* file .*$srcdir.*"
 231     gdb_test "continue" \
 232             "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
 233             "Continue to creation of second thread"
 234
 235     # Extract the thread id number of thread 2 from "info threads" output.
 236     send_gdb "info threads\n"
 237     gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
 238     set thread2_id $expect_out(1,string)
 239
 240     return 1
 241 }
 242
 243 proc check_control_c {} {
 244     global gdb_prompt
 245
 246     # Verify that all threads are running.
 247     if [all_threads_running] then {
 248         pass "All threads running after startup"
 249     }
 250
 251     # Send a continue followed by ^C to the process to stop it.
 252     send_gdb "continue\n"
 253     set description "Stopped with a ^C"
 254     after 1000 [send_gdb "\003"]
 255     gdb_expect {
 256         -re "Program received signal SIGINT.*$gdb_prompt $" {
 257             pass $description
 258         }
 259         -re "Quit.*$gdb_prompt $" {
 260             pass $description
 261         }
 262         timeout {
 263             fail "$description (timeout)"
 264         }
 265     }
 266     gdb_test "bt" ""
 267
 268     # Verify that all threads can be run again after a ^C stop.
 269     if [all_threads_running] then {
 270         pass "All threads running after continuing from ^C stop"
 271     }
 272 }
 273
 274 proc check_backtraces {} {
 275     global gdb_prompt main_id thread1_id thread2_id
 276
 277     # Check that the "thread apply N backtrace" command works
 278
 279     gdb_test "thread apply $main_id backtrace" \
 280             ".* in main \\(argc=.*, argv=.*\\).*" \
 281             "check backtrace from main thread"
 282     gdb_test "thread apply $thread1_id backtrace" \
 283             ".* in thread1 \\(arg=0xfeedface\\).*" \
 284             "check backtrace from thread 1"
 285     gdb_test "thread apply $thread2_id backtrace" \
 286             ".* in thread2 \\(arg=0xdeadbeef\\).*" \
 287             "check backtrace from thread 2"
 288
 289     # Check that we can apply the backtrace command to all
 290     # three threads with a single gdb command
 291
 292     gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
 293             ".* in main .* in thread1 .* in thread2.*" \
 294             "apply backtrace command to all three threads"
 295
 296     # Check that we can do thread specific backtraces
 297     # This also tests that we can do thread specific breakpoints.
 298
 299     gdb_test "break common_routine thread $thread2_id" \
 300             "Breakpoint .* at 0x.* file .* line .*" \
 301             "set break at common_routine in thread 2"
 302
 303     send_gdb "continue\n"
 304     gdb_expect {
 305         -re "Breakpoint .* common_routine \\(arg=2\\).*" {
 306             pass "continue to bkpt at common_routine in thread 2"
 307             send_gdb "backtrace\n"
 308             gdb_expect {
 309                 -re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
 310                     pass "backtrace from thread 2 bkpt in common_routine"
 311                 }
 312                 default {
 313                     fail "backtrace from thread 2 bkpt in common_routine"
 314                 }
 315                 timeout {
 316                     fail "backtrace from thread 2 bkpt in common_routine (timeout)"
 317                 }
 318             }
 319         }
 320         -re "Breakpoint .* common_routine \\(arg=0\\).*" {
 321             fail "continue to bkpt at common_routine in thread 2 (arg=0)"
 322         }
 323         -re "Breakpoint .* common_routine \\(arg=1\\).*" {
 324             fail "continue to bkpt at common_routine in thread 2 (arg=1)"
 325         }
 326         -re ".*$gdb_prompt" {
 327             fail "continue to bkpt at common_routine in thread 2"
 328         }
 329         default {
 330             fail "continue to bkpt at common_routine in thread 2 (default)"
 331         }
 332         timeout {
 333             fail "continue to bkpt at common_routine in thread 2 (timeout)"
 334         }
 335     }
 336 }
 337
 338 setup_xfail "alpha-*-osf*"
 339 if [runto_main] then {
 340     clear_xfail "alpha-*-osf*"
 341     if [test_startup] then {
 342         check_control_c
 343         check_backtraces
 344     }
 345 }
 346 clear_xfail "alpha-*-osf*"