gdb/testsuite/gdb.threads/pthreads.exp

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