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/*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright © 2020 Keith Packard
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <picotls.h>
#include <stdlib.h>
#include <stdbool.h>
#define DATA_VAL 0x600df00d
volatile NEWLIB_THREAD_LOCAL int data_var = DATA_VAL;
volatile NEWLIB_THREAD_LOCAL int bss_var;
volatile int *volatile data_addr;
volatile int *volatile bss_addr;
int
check_tls(char *where, bool check_addr)
{
int result = 0;
printf("tls check %s %p %p\n", where, &data_var, &bss_var);
if (data_var != DATA_VAL) {
printf("%s: initialized thread var has wrong value (0x%x instead of 0x%x)\n",
where, data_var, DATA_VAL);
result++;
}
if (bss_var != 0) {
printf("%s: uninitialized thread var has wrong value (0x%x instead of 0x%x)\n",
where, bss_var, 0);
result++;
}
data_var = ~data_var;
if (data_var != ~DATA_VAL) {
printf("%s: initialized thread var set to wrong value (0x%x instead of 0x%x)\n",
where, data_var, ~DATA_VAL);
result++;
}
bss_var = ~bss_var;
if (bss_var != ~0) {
printf("%s: uninitialized thread var has wrong value (0x%x instead of 0x%x)\n",
where, bss_var, ~0);
result++;
}
if (check_addr) {
if (data_addr == &data_var) {
printf("_set_tls didn't affect initialized addr %p\n", data_addr);
result++;
}
if (bss_addr == &bss_var) {
printf("_set_tls didn't affect uninitialized addr %p\n", bss_addr);
result++;
}
}
return result;
}
int
main(void)
{
int result;
data_addr = &data_var;
bss_addr = &bss_var;
result = check_tls("pre-defined", false);
#ifdef HAVE_PICOLIBC_TLS_API
void *tls = malloc(_tls_size());
_init_tls(tls);
_set_tls(tls);
result += check_tls("allocated", true);
#endif
printf("tls test result %d\n", result);
return result;
}
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