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/*
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/*
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 * Copyright (C) 2006 Ondrej Palkovsky
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 * Copyright (C) 2006 Martin Decky
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 * Copyright (C) 2006 Jakub Jermar
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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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 * 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
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/** @addtogroup libcsparc64
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 * @{
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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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 * @brief   sparc64 TLS functions.
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 *
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 * The implementation is based on the IA-32 implementation which was also
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 * designed by Sun and is virtually the same, except the TCB is stored in
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 * %g7 (of the normal set).
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 */
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 */
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#ifndef __LIBC__sparc64__THREAD_H__
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#ifndef LIBC_sparc64_THREAD_H_
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#define __LIBC__sparc64__THREAD_H__
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#define LIBC_sparc64_THREAD_H_
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#define PPC_TP_OFFSET 0x7000
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typedef struct {
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typedef struct {
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    void *self;
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    void *pst_data;
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    void *pst_data;
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} tcb_t;
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} tcb_t;
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static inline void __tcb_set(tcb_t *tcb)
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static inline void __tcb_set(tcb_t *tcb)
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{
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{
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    void *tp = tcb;
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    tp += PPC_TP_OFFSET + sizeof(tcb_t);
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    __asm__ volatile ("mov %0, %%g7\n" : : "r" (tcb) : "g7");
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}
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}
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static inline tcb_t *__tcb_get(void)
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static inline tcb_t * __tcb_get(void)
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{
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{
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    void *retval;
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    return (tcb_t *)(PPC_TP_OFFSET - sizeof(tcb_t));
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    __asm__ volatile ("mov %%g7, %0\n" : "=r" (retval));
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    return retval;
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}
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}
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#endif
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#endif
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/** @}
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/** @}