source: mainline/uspace/lib/c/arch/amd64/src/tls.c@ 8624d1f

/*
 * SPDX-FileCopyrightText: 2006 Ondrej Palkovsky
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

/** @addtogroup libcamd64 amd64
 * @ingroup lc
 * @{
 */
/** @file
 * @ingroup libcia32
 */

#include <tls.h>
#include <stddef.h>

#ifdef CONFIG_RTLD
#include <rtld/rtld.h>
#endif

tcb_t *tls_alloc_arch(size_t size, size_t align)
{
        return tls_alloc_variant_2(size, align);
}

void tls_free_arch(tcb_t *tcb, size_t size, size_t align)
{
        tls_free_variant_2(tcb, size, align);
}

/*
 * Rtld TLS support
 */

typedef struct {
        unsigned long int ti_module;
        unsigned long int ti_offset;
} tls_index;

void __attribute__((__regparm__(1)))
    *__tls_get_addr(tls_index *ti);

void __attribute__((__regparm__(1)))
    *__tls_get_addr(tls_index *ti)
{
        uint8_t *tls;

#ifdef CONFIG_RTLD
        if (runtime_env != NULL) {
                return rtld_tls_get_addr(runtime_env, __tcb_get(),
                    ti->ti_module, ti->ti_offset);
        }
#endif
        /* Get address of static TLS block */
        tls = tls_get();
        return tls + ti->ti_offset;
}

/** @}
 */