gnu/dist/gdb6/gdb/testsuite/gdb.threads/pthread_cond_wait.exp

   1 # Copyright (C) 2004 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@gnu.org
  19
  20 # This file verifies that GDB is able to compute a backtrace for a thread
  21 # being blocked on a call to pthread_cond_wait().
  22
  23 if $tracelevel then {
  24         strace $tracelevel
  25 }
  26
  27 set testfile "pthread_cond_wait"
  28 set srcfile ${testfile}.c
  29 set binfile ${objdir}/${subdir}/${testfile}
  30
  31 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
  32     return -1
  33 }
  34
  35 gdb_exit
  36 gdb_start
  37 gdb_reinitialize_dir $srcdir/$subdir
  38 gdb_load ${binfile}
  39 runto_main
  40
  41 gdb_test "break break_me" \
  42     "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
  43          "breakpoint on break_me"
  44
  45 gdb_test "continue" \
  46          ".*Breakpoint 2, break_me ().*" \
  47          "run to break_me"
  48
  49 #
  50 # Backtrace all threads, find the one running noreturn, and
  51 # verify that we are able to get a sensible backtrace, including
  52 # the frame for the pthread_cond_wait() call.
  53 #
  54 # The string below will only match if the functions named
  55 # occur in a single thread's backtrace, in the given order.
  56 #
  57
  58 global hex
  59 global decimal
  60
  61 #
  62 # This is a "backtrace break" ("btb"):
  63 #
  64 set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} in "
  65
  66 # One of the threads is blocked on a call to pthread_cond_wait, and
  67 # we want to verify that we are able to get a sensible backtrace for
  68 # that thread.  Because we don't know its thread ID, we can't switch
  69 # to it before doing the backtrace. So we get a backtrace for all
  70 # threads, and verify that one them returns the expected backtrace.
  71 gdb_test "thread apply all backtrace" \
  72     "pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \
  73     "backtrace in blocked thread"
  74