e415d48872
Bumping libc files for unsupported architectures, to simplify merging. A bunch of small fixes: * in libutil update * the macro in endian.h * some undefined types due to clear separation from host. * Fix a warning for cdbr.c Some modification which were required for the new build system: * inclusion path for const.h in sconst, still hacky * Removed default malloc.c which conflicts on some occasions.
72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/* $NetBSD: _lwp.c,v 1.7 2012/03/22 05:36:50 matt Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2001 Wasabi Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Allen Briggs for Wasabi Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed for the NetBSD Project by
|
|
* Wasabi Systems, Inc.
|
|
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: _lwp.c,v 1.7 2012/03/22 05:36:50 matt Exp $");
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include "namespace.h"
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <ucontext.h>
|
|
#include <lwp.h>
|
|
#include <stdlib.h>
|
|
|
|
void
|
|
_lwp_makecontext(ucontext_t *u, void (*start)(void *), void *arg,
|
|
void *tcb, caddr_t stack_base, size_t stack_size)
|
|
{
|
|
uintptr_t sp;
|
|
|
|
getcontext(u);
|
|
u->uc_link = NULL;
|
|
|
|
u->uc_stack.ss_sp = stack_base;
|
|
u->uc_stack.ss_size = stack_size;
|
|
|
|
sp = (uintptr_t)stack_base + stack_size;
|
|
sp -= STACK_ALIGNBYTES + 1;
|
|
sp &= ~STACK_ALIGNBYTES;
|
|
|
|
u->uc_mcontext.__gregs[3] = (uintptr_t) arg; /* arg1 */
|
|
u->uc_mcontext.__gregs[1] = sp; /* stack */
|
|
u->uc_mcontext.__gregs[33] = (uintptr_t) _lwp_exit; /* LR */
|
|
u->uc_mcontext.__gregs[34] = (uintptr_t) start; /* PC */
|
|
u->uc_mcontext.__gregs[_REG_R2] =
|
|
(uintptr_t)tcb + TLS_TP_OFFSET + sizeof(struct tls_tcb);
|
|
}
|