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jeremybenn |
# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008,
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# 2009, 2010 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see .
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# This file was written by Fred Fish. (fnf@cygnus.com)
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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# This only works with native configurations
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if ![isnative] then {
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return
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}
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set testfile "pthreads"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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# regexp for "horizontal" text (i.e. doesn't include newline or
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# carriage return)
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set horiz "\[^\n\r\]*"
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if [istarget "*-*-linux"] then {
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set target_cflags "-D_MIT_POSIX_THREADS"
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} else {
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set target_cflags ""
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}
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
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return -1
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}
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# Start with a fresh gdb.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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gdb_test "set print sevenbit-strings" ""
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#gdb_test "set print address off" ""
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gdb_test "set width 0" ""
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# We'll need this when we send_gdb a ^C to GDB. Need to do it before we
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# run the program and gdb starts saving and restoring tty states.
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# On Ultrix, we don't need it and it is really slow (because shell_escape
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# doesn't use vfork).
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if ![istarget "*-*-ultrix*"] then {
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gdb_test "shell stty intr '^C'" ""
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}
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proc all_threads_running {} {
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global gdb_prompt
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global srcfile
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# Reset all the counters to zero.
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gdb_test "set var common_routine::hits=0" ""
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gdb_test "set var common_routine::from_thread1=0" ""
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gdb_test "set var common_routine::from_thread2=0" ""
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gdb_test "set var common_routine::from_main=0" ""
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gdb_test "set var common_routine::full_coverage=0" ""
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# Disable all breakpoints.
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gdb_test "disable" ""
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# Set up a breakpoint that will cause us to stop when we have
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# been called 15 times. This should be plenty of time to allow
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# every thread to run at least once, since each thread sleeps for
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# one second between calls to common_routine.
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gdb_test "tbreak common_routine if hits >= 15" ""
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# Start all the threads running again and wait for the inferior
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# to stop. Since no other breakpoints are set at this time
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# we should stop only when we have been previously called 15 times.
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send_gdb "continue\n"
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gdb_expect {
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-re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
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default {
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fail "continue until common routine run 15 times"
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return 0
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}
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timeout {
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fail "continue until common routine run 15 times (timeout)"
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return 0
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}
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}
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# Check that we stopped when we actually expected to stop, by
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# verifying that there have been 15 previous hits.
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# NOTE: Because of synchronization behavior, it is possible for
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# more than one thread to increment "hits" between one breakpoint
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# trap and the next. So stopping after 16 or 17 hits should be
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# considered acceptable.
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send_gdb "p common_routine::hits\n"
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gdb_expect {
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-re ".*= 15\r\n$gdb_prompt $" {
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pass "stopped before calling common_routine 15 times"
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}
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-re ".*= 16\r\n$gdb_prompt $" {
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pass "stopped before calling common_routine 15 times (16 times)"
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}
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-re ".*= 17\r\n$gdb_prompt $" {
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pass "stopped before calling common_routine 15 times (17 times)"
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}
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default {
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fail "stopped before calling common_routine 15 times"
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return 0
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}
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-re ".*$gdb_prompt $" {
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fail "stopped before calling common_routine 15 times"
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return 0
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}
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timeout {
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fail "stopped before calling common_routine 15 times (timeout)"
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return 0
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}
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}
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# Also check that all of the threads have run, which will only be true
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# if the full_coverage variable is set.
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send_gdb "p common_routine::full_coverage\n"
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gdb_expect {
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-re ".* = 1.*$gdb_prompt $" {}
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-re ".* = 0.*$gdb_prompt $" {
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fail "some threads didn't run"
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return 0
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}
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default {
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fail "some threads didn't run"
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return 0
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}
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timeout {
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fail "some threads didn't run (timeout)"
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return 0
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}
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}
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# Looks fine, return success.
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return 1
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}
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proc test_startup {} {
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global srcdir srcfile gdb_prompt expect_out
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global horiz
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global main_id thread1_id thread2_id
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# We should be able to do an info threads before starting any others.
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send_gdb "info threads\n"
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gdb_expect {
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-re ".*Thread.*main.*$gdb_prompt $" {
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pass "info threads"
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}
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-re "\r\n$gdb_prompt $" {
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unsupported "gdb does not support pthreads for this machine"
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return 0
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}
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}
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# Extract the thread id number of main thread from "info threads" output.
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send_gdb "info threads\n"
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gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
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set main_id $expect_out(1,string)
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# Check that we can continue and create the first thread.
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gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
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gdb_test "continue" \
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"Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
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"Continue to creation of first thread"
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gdb_test "disable" ""
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# Extract the thread id number of thread 1 from "info threads" output.
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send_gdb "info threads\n"
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gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
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set thread1_id $expect_out(1,string)
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# Check that we can continue and create the second thread,
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# ignoring the first thread for the moment.
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gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
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gdb_test "continue" \
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"Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
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"Continue to creation of second thread"
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# Extract the thread id number of thread 2 from "info threads" output.
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send_gdb "info threads\n"
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gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
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set thread2_id $expect_out(1,string)
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return 1
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}
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proc check_control_c {} {
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global gdb_prompt
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# Verify that all threads are running.
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if [all_threads_running] then {
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pass "All threads running after startup"
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}
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# Send a continue followed by ^C to the process to stop it.
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send_gdb "continue\n"
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gdb_expect {
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-re "Continuing." {
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pass "Continue with all threads running"
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}
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timeout {
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fail "Continue with all threads running (timeout)"
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}
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}
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after 2000
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send_gdb "\003"
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set description "Stopped with a ^C"
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gdb_expect {
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-re "Program received signal SIGINT.*$gdb_prompt $" {
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pass $description
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}
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-re "Quit.*$gdb_prompt $" {
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pass $description
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}
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timeout {
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fail "$description (timeout)"
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return 1;
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}
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}
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gdb_test "bt" ""
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# Verify that all threads can be run again after a ^C stop.
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if [all_threads_running] then {
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pass "All threads running after continuing from ^C stop"
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}
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return 0;
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}
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proc check_backtraces {} {
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global gdb_prompt main_id thread1_id thread2_id
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# Check that the "thread apply N backtrace" command works
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gdb_test "thread apply $main_id backtrace" \
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".* in main \\(argc=.*, argv=.*\\).*" \
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"check backtrace from main thread"
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gdb_test "thread apply $thread1_id backtrace" \
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".* in thread1 \\(arg=0xfeedface\\).*" \
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"check backtrace from thread 1"
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gdb_test "thread apply $thread2_id backtrace" \
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".* in thread2 \\(arg=0xdeadbeef\\).*" \
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"check backtrace from thread 2"
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# Check that we can apply the backtrace command to all
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# three threads with a single gdb command
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gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
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".* in main .* in thread1 .* in thread2.*" \
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"apply backtrace command to all three threads"
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# Check that we can do thread specific backtraces
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# This also tests that we can do thread specific breakpoints.
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gdb_test "break common_routine thread $thread2_id" \
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"Breakpoint .* at 0x.* file .* line .*" \
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"set break at common_routine in thread 2"
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send_gdb "continue\n"
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gdb_expect {
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-re "Breakpoint .* common_routine \\(arg=2\\).*" {
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pass "continue to bkpt at common_routine in thread 2"
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send_gdb "backtrace\n"
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gdb_expect {
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-re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
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pass "backtrace from thread 2 bkpt in common_routine"
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}
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default {
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| 293 |
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fail "backtrace from thread 2 bkpt in common_routine"
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}
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timeout {
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| 296 |
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fail "backtrace from thread 2 bkpt in common_routine (timeout)"
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| 297 |
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}
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| 298 |
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}
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| 299 |
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}
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| 300 |
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-re "Breakpoint .* common_routine \\(arg=0\\).*" {
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| 301 |
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fail "continue to bkpt at common_routine in thread 2 (arg=0)"
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}
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| 303 |
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-re "Breakpoint .* common_routine \\(arg=1\\).*" {
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| 304 |
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fail "continue to bkpt at common_routine in thread 2 (arg=1)"
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| 305 |
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}
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| 306 |
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-re ".*$gdb_prompt" {
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| 307 |
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fail "continue to bkpt at common_routine in thread 2"
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| 308 |
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}
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| 309 |
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default {
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| 310 |
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fail "continue to bkpt at common_routine in thread 2 (default)"
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| 311 |
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}
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| 312 |
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timeout {
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| 313 |
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fail "continue to bkpt at common_routine in thread 2 (timeout)"
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| 314 |
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}
|
| 315 |
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}
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| 316 |
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}
|
| 317 |
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|
| 318 |
|
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setup_xfail "alpha-*-osf*"
|
| 319 |
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if [runto_main] then {
|
| 320 |
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clear_xfail "alpha-*-osf*"
|
| 321 |
|
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if [test_startup] then {
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| 322 |
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if [check_control_c] then {
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| 323 |
|
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warning "Could not stop child with ^C; skipping rest of tests.\n"
|
| 324 |
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return;
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| 325 |
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}
|
| 326 |
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check_backtraces
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| 327 |
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}
|
| 328 |
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}
|
| 329 |
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clear_xfail "alpha-*-osf*"
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