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