1# Copyright (C) 2004-2021 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
22standard_testfile
23
24if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
25    return -1
26}
27
28clean_restart ${binfile}
29runto_main
30
31gdb_test "break break_me" \
32    "Breakpoint 2 at .*: file .*${srcfile}, line .*" \
33         "breakpoint on break_me"
34
35gdb_test "continue" \
36         ".*Breakpoint 2, break_me ().*" \
37         "run to break_me"
38
39#
40# Backtrace all threads, find the one running noreturn, and
41# verify that we are able to get a sensible backtrace, including
42# the frame for the pthread_cond_wait() call.
43#
44# The string below will only match if the functions named
45# occur in a single thread's backtrace, in the given order.
46#
47
48global hex
49global decimal
50
51#
52# This is a "backtrace break" ("btb"):
53#
54set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} in "
55
56# One of the threads is blocked on a call to pthread_cond_wait, and
57# we want to verify that we are able to get a sensible backtrace for
58# that thread.  Because we don't know its thread ID, we can't switch
59# to it before doing the backtrace. So we get a backtrace for all
60# threads, and verify that one them returns the expected backtrace.
61gdb_test "thread apply all backtrace" \
62    "pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \
63    "backtrace in blocked thread"
64
65