tls_get_addr.s revision 7257d1b4d25bfac0c802847390e98a464fd787ac
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
.file "%M%"
#include "SYS.h"
#include <../assym.h>
/*
* To make thread-local storage accesses as fast as possible, we
* hand-craft the __tls_get_addr() function below, from this C code:
* void *
* __tls_get_addr(TLS_index *tls_index)
* {
* ulwp_t *self = curthread;
* tls_t *tlsent = self->ul_tlsent;
* ulong_t moduleid;
* caddr_t base;
*
* if ((moduleid = tls_index->ti_moduleid) < self->ul_ntlsent &&
* (base = tlsent[moduleid].tls_data) != NULL)
* return (base + tls_index->ti_tlsoffset);
*
* return (slow_tls_get_addr(tls_index));
* }
*/
/*
* We assume that the tls_t structure contains two pointer-sized elements.
* Cause a build failure if this becomes not true.
*/
#define SHIFT 3
#define SHIFT 4
#else
#error "Assumption violated: SIZEOF_TLS_T is not 2 * sizeof (uintptr_t)"
#endif
#if defined(__sparcv9)
#else
#define PN
#endif
#if TLS_DATA != 0
#endif
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