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/* { dg-shouldfail "tsan" } */
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
int Global;
void __attribute__((noinline)) foo1() {
Global = 42;
}
void __attribute__((noinline)) bar1() {
volatile int tmp = 42; (void)tmp;
foo1();
}
void __attribute__((noinline)) foo2() {
volatile int v = Global; (void)v;
}
void __attribute__((noinline)) bar2() {
volatile int tmp = 42; (void)tmp;
foo2();
}
void *Thread1(void *x) {
sleep(1);
bar1();
return NULL;
}
void *Thread2(void *x) {
bar2();
return NULL;
}
void StartThread(pthread_t *t, void *(*f)(void*)) {
pthread_create(t, NULL, f, NULL);
}
int main() {
pthread_t t[2];
StartThread(&t[0], Thread1);
StartThread(&t[1], Thread2);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
return 0;
}
/* { dg-output "WARNING: ThreadSanitizer: data race.*" } */
/* { dg-output " Write of size 4 at .* by thread T1:(\n|\r\n|\r)" } */
/* { dg-output " #0 foo1.* .*(simple_stack.c:10|\\?{2}:0) (.*)" } */
/* { dg-output " #1 bar1.* .*(simple_stack.c:15|\\?{2}:0) (.*)" } */
/* { dg-output " #2 Thread1.* .*(simple_stack.c:29|\\?{2}:0) (.*)" } */
/* { dg-output " Previous read of size 4 at .* by thread T2:(\n|\r\n|\r)" } */
/* { dg-output " #0 foo2.* .*(simple_stack.c:19|\\?{2}:0) (.*)" } */
/* { dg-output " #1 bar2.* .*(simple_stack.c:24|\\?{2}:0) (.*)" } */
/* { dg-output " #2 Thread2.* .*(simple_stack.c:34|\\?{2}:0) (.*)" } */
/* { dg-output " Thread T1 \\(tid=.*, running\\) created by main thread at:(\n|\r\n|\r)" } */
/* { dg-output " #0 pthread_create .* (.*)" } */
/* { dg-output " #1 StartThread.* .*(simple_stack.c:39|\\?{2}:0) (.*)" } */
/* { dg-output " Thread T2 (.*) created by main thread at:(\n|\r\n|\r)" } */
/* { dg-output " #0 pthread_create .* (.*)" } */
/* { dg-output " #1 StartThread.* .*(simple_stack.c:39|\\?{2}:0) (.*)" } */
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