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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 <tls.h>
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#include <malloc.h>
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#include <sys/types.h>
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#include <align.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 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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 * @param data Pointer to pointer to thread local data. This is actually an
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 *  output argument.
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 * @param size Size of thread local data.
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 * @return Pointer to TCB structure.
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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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    size = ALIGN_UP(size, &_tls_alignment);
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    *data = memalign(&_tls_alignment, sizeof(tcb_t) + size);
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    tcb = (tcb_t *) (*data + size);
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    return tls_alloc_variant_2(data, size);
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    tcb->self = 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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    size = ALIGN_UP(size, &_tls_alignment);
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    void *start = ((void *) tcb) - size;
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    tls_free_variant_2(tcb, size);
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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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 */