[RFA]: New test for gdb.threads testsuite

Jeff Johnston
2004-03-30T00:22:20Z

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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.

[-- Attachment #2: manythreads.c --]
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#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;
}

[-- Attachment #3: manythreads.exp --]
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# 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)"
}
}