Re: [RFA]: New test for gdb.threads testsuite

Michael Snyder
2004-04-22T21:51:03Z

Jeff Johnston wrote:
> The attached testcase tests the new code added recently by Daniel.
>
> Ok to commit?
>
> -- Jeff J.
>
> 2004-03-29 Jeff Johnston <jjohnstn@redhat.com>
> Daniel Jacobowitz <drow@mvista.com>
>
> * gdb.threads/manythreads.c: New testcase.
> * gdb.threads/manythreads.exp: Ditto.

Looks good to me, Jeff. Please check it in.
Michael

> ------------------------------------------------------------------------
>
> #include <pthread.h>
> #include <stdio.h>
>
> void *
> thread_function (void *arg)
> {
> int x = (int)arg;
>
> printf ("Thread <%d> executing\n", x);
>
> return NULL;
> }
>
> int
> main (int argc, char **argv)
> {
> pthread_attr_t attr;
> pthread_t threads[256];
> int i, j;
>
> pthread_attr_init (&attr);
>
> /* Create a ton of quick-executing threads, then wait for them to
> complete. */
> for (i = 0; i < 1000; ++i)
> {
> for (j = 0; j < 256; ++j)
> {
> pthread_create (&threads[j], &attr, thread_function,
> (void *)(i * 1000 + j));
> }
>
> for (j = 0; j < 256; ++j)
> {
> pthread_join (threads[j], NULL);
> }
> }
>
> pthread_attr_destroy (&attr);
>
> return 0;
> }
>
>
> ------------------------------------------------------------------------
>
> # manythreads.exp -- Expect script to test stopping many threads
> # Copyright (C) 2004 Free Software Foundation, Inc.
>
> # This program is free software; you can redistribute it and/or modify
> # it under the terms of the GNU General Public License as published by
> # the Free Software Foundation; either version 2 of the License, or
> # (at your option) any later version.
> #
> # This program is distributed in the hope that it will be useful,
> # but WITHOUT ANY WARRANTY; without even the implied warranty of
> # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> # GNU General Public License for more details.
> #
> # You should have received a copy of the GNU General Public License
> # along with this program; if not, write to the Free Software
> # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
>
> # Please email any bugs, comments, and/or additions to this file to:
> # bug-gdb@prep.ai.mit.edu
>
> # This file was written by Jeff Johnston. (jjohnstn@redhat.com)
>
> if $tracelevel then {
> strace $tracelevel
> }
>
> set prms_id 0
> set bug_id 0
>
> set testfile "manythreads"
> set srcfile ${testfile}.c
> set binfile ${objdir}/${subdir}/${testfile}
>
> if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
> return -1
> }
>
> gdb_start
> gdb_reinitialize_dir $srcdir/$subdir
> gdb_load ${binfile}
> gdb_test "set print sevenbit-strings" ""
> runto_main
>
> # We'll need this when we send_gdb a ^C to GDB. Need to do it before we
> # run the program and gdb starts saving and restoring tty states.
> # On Ultrix, we don't need it and it is really slow (because shell_escape
> # doesn't use vfork).
> if ![istarget "*-*-ultrix*"] then {
> gdb_test "shell stty intr '^C'" ""
> }
>
> set message "first continue"
> gdb_test_multiple "continue" "first continue" {
> -re "error:.*$gdb_prompt $" {
> fail "$message"
> }
> -re "Continuing" {
> pass "$message"
> }
> }
>
> # Send a Ctrl-C and verify that we can do info threads and continue
> after 1000 {send_gdb "\003"}
> set message "stop threads 1"
> gdb_test_multiple "" "stop threads 1" {
> -re "\\\[New \[^\]\]*\\\]\r\n" {
> exp_continue
> }
> -re "\\\[\[^\]\]* exited\\\]\r\n" {
> exp_continue
> }
> -re "Thread \[^\n\]* executing\r\n" {
> exp_continue
> }
> -re "Program received signal SIGINT.*$gdb_prompt $" {
> pass "$message"
> }
> timeout {
> fail "$message (timeout)"
> }
> }
>
> gdb_test "info threads" ".*1 Thread.*.LWP.*"
>
> set message "second continue"
> gdb_test_multiple "continue" "second continue" {
> -re "error:.*$gdb_prompt $" {
> fail "$message"
> }
> -re "Continuing" {
> pass "$message"
> }
> }
>
> # Send another Ctrl-C and verify that we can do info threads and quit
> after 1000 {send_gdb "\003"}
> set message "stop threads 2"
> gdb_test_multiple "" "stop threads 2" {
> -re "\\\[New \[^\]\]*\\\]\r\n" {
> exp_continue
> }
> -re "\\\[\[^\]\]* exited\\\]\r\n" {
> exp_continue
> }
> -re "Thread \[^\n\]* executing\r\n" {
> exp_continue
> }
> -re "Program received signal SIGINT.*$gdb_prompt $" {
> pass "stop threads 2"
> }
> }
>
> gdb_test_multiple "quit" "GDB exits after stopping multithreaded program" {
> -re "The program is running. Exit anyway\\? \\(y or n\\) $" {
> send_gdb "y\n"
> exp_continue
> }
> eof {
> pass "GDB exits after stopping multithreaded program"
> }
> timeout {
> fail "GDB exits after stopping multithreaded program (timeout)"
> }
> }
>