gdb/testsuite/gdb.threads/pthread_cond_wait.exp

   1 # Copyright (C) 2004, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # Please email any bugs, comments, and/or additions to this file to:
  17 # bug-gdb@gnu.org
  18
  19 # This file verifies that GDB is able to compute a backtrace for a thread
  20 # being blocked on a call to pthread_cond_wait().
  21
  22 if $tracelevel then {
  23         strace $tracelevel
  24 }
  25
  26 set testfile "pthread_cond_wait"
  27 set srcfile ${testfile}.c
  28 set binfile ${objdir}/${subdir}/${testfile}
  29
  30 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
  31     return -1
  32 }
  33
  34 gdb_exit
  35 gdb_start
  36 gdb_reinitialize_dir $srcdir/$subdir
  37 gdb_load ${binfile}
  38 runto_main
  39
  40 gdb_test "break break_me" \
  41     "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
  42          "breakpoint on break_me"
  43
  44 gdb_test "continue" \
  45          ".*Breakpoint 2, break_me ().*" \
  46          "run to break_me"
  47
  48 #
  49 # Backtrace all threads, find the one running noreturn, and
  50 # verify that we are able to get a sensible backtrace, including
  51 # the frame for the pthread_cond_wait() call.
  52 #
  53 # The string below will only match if the functions named
  54 # occur in a single thread's backtrace, in the given order.
  55 #
  56
  57 global hex
  58 global decimal
  59
  60 #
  61 # This is a "backtrace break" ("btb"):
  62 #
  63 set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} in "
  64
  65 # One of the threads is blocked on a call to pthread_cond_wait, and
  66 # we want to verify that we are able to get a sensible backtrace for
  67 # that thread.  Because we don't know its thread ID, we can't switch
  68 # to it before doing the backtrace. So we get a backtrace for all
  69 # threads, and verify that one them returns the expected backtrace.
  70 gdb_test "thread apply all backtrace" \
  71     "pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \
  72     "backtrace in blocked thread"
  73