1# Copyright (C) 2004, 2007 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 22if $tracelevel then { 23 strace $tracelevel 24} 25 26set testfile "pthread_cond_wait" 27set srcfile ${testfile}.c 28set binfile ${objdir}/${subdir}/${testfile} 29 30if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } { 31 return -1 32} 33 34gdb_exit 35gdb_start 36gdb_reinitialize_dir $srcdir/$subdir 37gdb_load ${binfile} 38runto_main 39 40gdb_test "break break_me" \ 41 "Breakpoint 2 at .*: file .*${srcfile}, line .*" \ 42 "breakpoint on break_me" 43 44gdb_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 57global hex 58global decimal 59 60# 61# This is a "backtrace break" ("btb"): 62# 63set btb "\[^\r\n\]+\[\r\n\]+\#${decimal}\[ \t\]+${hex} in " 64 65# One of the threads is blocked on a call to pthread_cond_wait, and 66# we want to verify that we are able to get a sensible backtrace for 67# that thread. Because we don't know its thread ID, we can't switch 68# to it before doing the backtrace. So we get a backtrace for all 69# threads, and verify that one them returns the expected backtrace. 70gdb_test "thread apply all backtrace" \ 71 "pthread_cond_wait${btb}cond_wait${btb}noreturn${btb}forever_pthread.*" \ 72 "backtrace in blocked thread" 73 74