Re: [rfa/gdb.threads] Test static thread program

[Michael Snyder <msnyder@redhat.com>]

Andrew Cagney wrote:
> Hello,
> 
> This test a static threaded program being debugged (it picks up kfails). 
>  Tested on RHEL3 amd64.
> 
> ok?
> Andrew

I really really appreciate the contribution of a static thread test.
I'd like to know what specific failure mode(s) you're looking for.
Any chance you could test it on Solaris?




> ------------------------------------------------------------------------
> 
> 2004-08-10  Andrew Cagney  <cagney@gnu.org>
> 
> 	* gdb.threads/staticthreads.c, gdb.threads/staticthreads.exp: New
> 	files.
> 
> Index: gdb.threads/staticthreads.c
> ===================================================================
> RCS file: gdb.threads/staticthreads.c
> diff -N gdb.threads/staticthreads.c
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ gdb.threads/staticthreads.c	10 Aug 2004 14:14:10 -0000
> @@ -0,0 +1,73 @@
> +/* This test program is part of GDB, The GNU debugger.
> +
> +   Copyright 2004 Free Software Foundation, Inc.
> +
> +   Originally written by Jeff Johnston <jjohnstn@redhat.com>,
> +   contributed by Red Hat
> +
> +   This file is part of GDB.
> +
> +   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.  */
> +
> +#include <pthread.h>
> +#include <semaphore.h>
> +#include <stdio.h>
> +#include <limits.h>
> +#include <errno.h>
> +
> +sem_t semaphore;
> +
> +void *
> +thread_function (void *arg)
> +{
> +  printf ("Thread executing\n");
> +  while (sem_wait (&semaphore) != 0)
> +    {
> +      if (errno != EINTR)
> +	{
> +	  perror ("thread_function");
> +	  return;
> +	}
> +    }
> +  return NULL;
> +}
> +
> +int 
> +main (int argc, char **argv)
> +{
> +  pthread_attr_t attr;
> +
> +  pthread_attr_init (&attr);
> +  pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
> +
> +  if (sem_init (&semaphore, 0, 0) == -1)
> +    {
> +      perror ("semaphore");
> +      return -1;
> +    }
> +
> +
> +  /* Create a thread, wait for it to complete.  */
> +  {
> +    pthread_t thread;
> +    pthread_create (&thread, &attr, thread_function, NULL);
> +    sem_post (&semaphore);
> +    pthread_join (thread, NULL);
> +  }
> +
> +  pthread_attr_destroy (&attr);
> +  return 0;
> +}
> Index: gdb.threads/staticthreads.exp
> ===================================================================
> RCS file: gdb.threads/staticthreads.exp
> diff -N gdb.threads/staticthreads.exp
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ gdb.threads/staticthreads.exp	10 Aug 2004 14:14:10 -0000
> @@ -0,0 +1,87 @@
> +# static.exp -- test script, for GDB, the GNU debugger.
> +
> +# Copyright 2004 Free Software Foundation, Inc.
> +
> +# Originally written by Jeff Johnston, contributed by Red Hat.
> +
> +# 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.  
> +
> +if $tracelevel then {
> +	strace $tracelevel
> +}
> +
> +set prms_id 0
> +set bug_id 0
> +
> +set testfile "staticthreads"
> +set srcfile ${testfile}.c
> +set binfile ${objdir}/${subdir}/${testfile}
> +set static_flag "-static"
> +
> +if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
> +	 executable \
> +	 [list debug "incdir=${objdir}" "additional_flags=${static_flag}" \
> +	     ]] != "" } {
> +    return -1
> +}
> +
> +gdb_start
> +gdb_reinitialize_dir $srcdir/$subdir
> +gdb_load ${binfile}
> +gdb_test "set print sevenbit-strings" ""
> +
> +
> +# See if the static multi-threaded program runs.
> +
> +runto_main
> +gdb_test "break sem_post"
> +set test "Continue to main's call of sem_post"
> +gdb_test_multiple "continue" "$test" {
> +    -re " sem_post .*$gdb_prompt " {
> +	pass "$test"
> +    }
> +    -re "Program received signal .*$gdb_prompt " {
> +	kfail gdb/1328 "$test"
> +    }
> +}
> +    
> +
> +# See if handle SIG32 helps (a little) with a static multi-threaded
> +# program.
> +
> +rerun_to_main
> +gdb_test "handle SIG32 nostop noprint pass"
> +set test "Handle SIG32 helps"
> +gdb_test "continue" " sem_post .*" "handle SIG32 helps"
> +
> +
> +# See if info threads produces anything approaching a thread list.
> +
> +set test "info threads"
> +gdb_test "info threads" " Thread .*$gdb_prompt"
> +
> +
> +# Check that the program can be quit.
> +
> +set test "GDB exits with static thread program"
> +gdb_test_multiple "quit" "$test" {
> +    -re "The program is running.  Exit anyway\\? \\(y or n\\) $" {
> +	send_gdb "y\n"
> +	exp_continue
> +    }
> +    eof {
> +        pass "$test"
> +    }
> +}