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/*
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/*
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 * Copyright (C) 2006 Ondrej Palkovsky
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 * Copyright (C) 2006 Ondrej Palkovsky
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup libcsparc64 sparc64
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/** @addtogroup libcsparc64 sparc64
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 * @ingroup lc
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 * @ingroup lc
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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 *
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 *
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 */
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 */
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#include <thread.h>
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#include <thread.h>
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#include <malloc.h>
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#include <malloc.h>
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/*
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 * sparc64 uses thread-local storage data structures, variant II, as described
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 * in:
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 *  Drepper U.: ELF Handling For Thread-Local Storage, 2005
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 */
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/** Allocate TLS & TCB for initial module threads
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/** Allocate TLS variant II data structures for a thread.
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 *
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 * Only static model is supported.
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 *
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 *
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 * @param data Pointer to pointer to thread local data. This is actually an
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 *  output argument.
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 * @param data Start of data section
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 * @param size Size of thread local data.
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 * @return pointer to tcb_t structure
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 * @return Pointer to TCB structure.
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 */
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 */
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tcb_t * __alloc_tls(void **data, size_t size)
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tcb_t * __alloc_tls(void **data, size_t size)
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{
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{
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    tcb_t *tcb;
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    tcb_t *tcb;
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    *data = malloc(sizeof(tcb_t) + size);
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    *data = malloc(sizeof(tcb_t) + size);
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    tcb = (tcb_t *) (*data + size);
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    tcb = (tcb_t *) (*data + size);
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    tcb->self = tcb;
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    tcb->self = tcb;
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    return tcb;
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    return tcb;
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}
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}
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/** Free TLS variant II data structures of a thread.
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 *
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 * Only static model is supported.
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 *
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 * @param tcb Pointer to TCB structure.
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 * @param size Size of thread local data.
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 */
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void __free_tls_arch(tcb_t *tcb, size_t size)
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void __free_tls_arch(tcb_t *tcb, size_t size)
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{
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{
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    void *start = ((void *)tcb) - size;
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    void *start = ((void *) tcb) - size;
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    free(start);
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    free(start);
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}
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}
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/** @}
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/** @}
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 */
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 */
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