linux-sgx-trts-modified/sdk/trts/linux/tls_support.c

/*
 * Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
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 *     the documentation and/or other materials provided with the
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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/**
 * File: tls_support.c
 * Description:
 *     TLS support in the enclave.
 */

#include "thread_data.h"

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

#if defined SE_GNU32
void * __attribute__((__regparm__(1))) ___tls_get_addr(tls_index *ti)
#elif defined SE_GNU64
void *__tls_get_addr(tls_index *ti)
#endif
{
    thread_data_t *thread_data = get_thread_data();
    return (unsigned char *)thread_data->tls_addr + ti->ti_offset;
}