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
23if $tracelevel then {
24	strace $tracelevel
25}
26
27set testfile "pthread_cond_wait"
28set srcfile ${testfile}.c
29set binfile ${objdir}/${subdir}/${testfile}
30
31if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
32    return -1
33}
34
35gdb_exit
36gdb_start
37gdb_reinitialize_dir $srcdir/$subdir
38gdb_load ${binfile}
39runto_main
40
41gdb_test "break break_me" \
42    "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
43         "breakpoint on break_me"
44
45gdb_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
58global hex
59global decimal
60
61#
62# This is a "backtrace break" ("btb"):
63#
64set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} in "
65
66# One of the threads is blocked on a call to pthread_cond_wait, and
67# we want to verify that we are able to get a sensible backtrace for
68# that thread.  Because we don't know its thread ID, we can't switch
69# to it before doing the backtrace. So we get a backtrace for all
70# threads, and verify that one them returns the expected backtrace.
71gdb_test "thread apply all backtrace" \
72    "pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \
73    "backtrace in blocked thread"
74
75