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/* Start thread. L4 Hurd version.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <pt-internal.h>
#include "task_client.h"
extern L4_ThreadId_t __system_pager;
extern L4_ThreadId_t __task_server;
#ifndef WORKING_EXREGS
static void
send_startup_ipc (L4_ThreadId_t id, L4_Word_t ip, L4_Word_t sp)
{
L4_Msg_t msg;
printf ("%s: Sending startup message to %x, "
"(ip=%x, sp=%x)\n",
__FUNCTION__, * (L4_Word_t *) &id, ip, sp);
L4_Clear (&msg);
#ifdef HAVE_PROPAGATION
L4_Set_VirtualSender (pager_tid);
L4_Set_Propagation (&msg.tag);
#endif
L4_Append_Word (&msg, ip);
L4_Append_Word (&msg, sp);
#ifndef HAVE_PROPAGATION
L4_Append_Word (&msg, *(L4_Word_t *) &id);
id = __system_pager;
#if 0
DODEBUG (2, printf ("%s: Redirecting start request to pager (%x).\n",
__FUNCTION__, * (L4_Word_t *) &id));
#endif
#endif
L4_LoadMsg (&msg);
L4_Send (id);
}
#endif
/* Start THREAD. We allocate all system-specific resources, including
a kernel thread, set it up, and get it running. */
int
__pthread_start (struct __pthread *thread)
{
error_t err;
if (__pthread_num_threads == 1)
/* The main thread is already running: do nothing. */
{
assert (__pthread_total == 1);
thread->threadid = L4_Myself ();
}
else
{
CORBA_Environment env;
env = idl4_default_environment;
err = thread_create (__task_server,
L4_Version (L4_Myself ()),
* (L4_Word_t *) &__system_pager,
(L4_Word_t *) &thread->threadid, &env);
if (err)
return EAGAIN;
env = idl4_default_environment;
err = thread_resume (__task_server,
* (L4_Word_t *) &thread->threadid,
&env);
assert (! err);
#ifndef WORKING_EXREGS
L4_AbortIpc_and_stop (thread->threadid);
L4_Start_SpIp (thread->threadid, (L4_Word_t) thread->mcontext.sp,
(L4_Word_t) thread->mcontext.pc);
#endif
send_startup_ipc (thread->threadid, (L4_Word_t) thread->mcontext.pc,
(L4_Word_t) thread->mcontext.sp);
}
return 0;
}
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