130 lines
3.9 KiB
C
130 lines
3.9 KiB
C
/****************************************************************************
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* examples/ostest/tls.c
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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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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* are met:
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*
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <nuttx/tls.h>
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#include "ostest.h"
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#ifdef CONFIG_TLS
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#include <arch/tls.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct tls_info_s g_save_info;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static void get_tls_info(FAR struct tls_info_s *info)
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{
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memcpy(info, up_tls_info(), sizeof(struct tls_info_s));
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}
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static void put_tls_info(FAR const struct tls_info_s *info)
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{
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memcpy(up_tls_info(), info, sizeof(struct tls_info_s));
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}
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static void set_tls_info(uintptr_t value)
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{
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FAR struct tls_info_s *info = up_tls_info();
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int i;
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for (i = 0; i < CONFIG_TLS_NELEM; i++)
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{
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info->tl_elem[i] = value;
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}
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}
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static bool verify_tls_info(uintptr_t value)
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{
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FAR struct tls_info_s *info = up_tls_info();
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bool fail = false;
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int i;
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for (i = 0; i < CONFIG_TLS_NELEM; i++)
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{
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if (info->tl_elem[i] != value)
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{
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printf("tls: ERROR Element %d: Set %lx / read %lx\n",
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i, (unsigned long)value,
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(unsigned long)info->tl_elem[i]);
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fail = true;
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}
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}
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return fail;
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}
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static void do_tls_test(uintptr_t value)
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{
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set_tls_info(value);
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if (!verify_tls_info(value))
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{
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printf("tls: Successfully set %lx\n", (unsigned long)value);
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void tls_test(void)
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{
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get_tls_info(&g_save_info);
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do_tls_test(0);
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do_tls_test(0xffffffff);
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do_tls_test(0x55555555);
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do_tls_test(0xaaaaaaaa);
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put_tls_info(&g_save_info);
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}
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#endif /* CONFIG_TLS */
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