65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
|
/*-
|
||
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||
|
|
*
|
||
|
|
* Copyright (c) 2019 The FreeBSD Foundation
|
||
|
|
*
|
||
|
|
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
|
||
|
|
* under sponsorship from the FreeBSD Foundation.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _LIBC_MIPS_STATIC_TLS_H
|
||
|
|
#define _LIBC_MIPS_STATIC_TLS_H
|
||
|
|
|
||
|
|
#include <machine/tls.h>
|
||
|
|
|
||
|
|
static __inline uintptr_t
|
||
|
|
_libc_get_static_tls_base(size_t offset)
|
||
|
|
{
|
||
|
|
uintptr_t tlsbase;
|
||
|
|
|
||
|
|
#if defined(__mips_n64)
|
||
|
|
__asm__ __volatile__ (
|
||
|
|
".set\tpush\n\t"
|
||
|
|
".set\tmips64r2\n\t"
|
||
|
|
"rdhwr\t%0, $29\n\t"
|
||
|
|
".set\tpop"
|
||
|
|
: "=r" (tlsbase));
|
||
|
|
tlsbase -= TLS_TP_OFFSET + TLS_TCB_SIZE;
|
||
|
|
#else /* mips 32 */
|
||
|
|
__asm__ __volatile__ (
|
||
|
|
".set\tpush\n\t"
|
||
|
|
".set\tmips32r2\n\t"
|
||
|
|
"rdhwr\t%0, $29\n\t"
|
||
|
|
".set\tpop"
|
||
|
|
: "=r" (tlsbase));
|
||
|
|
tlsbase -= TLS_TP_OFFSET + TLS_TCB_SIZE;
|
||
|
|
#endif /* ! __mips_n64 */
|
||
|
|
tlsbase += offset;
|
||
|
|
return (tlsbase);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|