xianglyc opened a new pull request, #13973:
URL: https://github.com/apache/nuttx/pull/13973
## Summary
add support for thread_local
## Impact
no impact
## Testing
case:
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define NUM_THREADS 5
/* Thread-local variable */
__thread int tls_var = 0;
void *thread_function(void *arg)
{
int thread_num = *((int *)arg);
/* Initialize the thread-local variable */
tls_var = thread_num;
/* Sleep to simulate some work */
sleep(1);
/* Print the value of the thread-local variable */
printf("Thread %d, tls_var = %d\n", thread_num, tls_var);
/* Modify the thread-local variable */
tls_var += 10;
/* Print the modified value of the thread-local variable */
printf("Thread %d, tls_var after modification = %d\n", thread_num,
tls_var);
return NULL;
}
int main()
{
pthread_t threads[NUM_THREADS];
int args[NUM_THREADS];
int ret;
int i;
/* Create threads */
for (i = 0; i < NUM_THREADS; ++i)
{
args[i] = i;
ret = pthread_create(&threads[i], NULL, thread_function, (void
*)&args[i]);
if (ret)
{
printf("ERROR: pthread_create() ret= %d\n", ret);
exit(EXIT_FAILURE);
}
}
/* Join threads */
for (i = 0; i < NUM_THREADS; ++i)
{
pthread_join(threads[i], NULL);
}
printf("done\n");
return 0;
}
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