Julian Lettner 9360f1a191 [Sanitizer] Fix sanitizer tests without reducing optimization levels
As discussed, these tests are compiled with optimization to mimic real
sanitizer usage [1].

Let's mark relevant functions with `noinline` so we can continue to
check against the stack traces in the report.

[1] https://reviews.llvm.org/D96198

This reverts commit 04af72c5423eb5ff7c0deba2d08cb46d583bb9d4.

Differential Revision: https://reviews.llvm.org/D96357
2021-02-11 15:22:20 -08:00

50 lines
1.2 KiB
C++

// Test that blacklisted functions are still contained in the stack trace.
// RUN: echo "fun:*Blacklisted_Thread2*" > %t.blacklist
// RUN: echo "fun:*CallTouchGlobal*" >> %t.blacklist
// RUN: %clangxx_tsan -O1 %s -fsanitize-blacklist=%t.blacklist -o %t
// RUN: %deflake %run %t 2>&1 | FileCheck %s
#include "test.h"
int Global;
void *Thread1(void *x) {
barrier_wait(&barrier);
// CHECK: ThreadSanitizer: data race
// CHECK: Write of size 4
// CHECK: #0 Thread1{{.*}}blacklist2.cpp:[[@LINE+1]]
Global++;
return NULL;
}
void TouchGlobal() __attribute__((noinline)) {
// CHECK: Previous write of size 4
// CHECK: #0 TouchGlobal{{.*}}blacklist2.cpp:[[@LINE+1]]
Global--;
}
void CallTouchGlobal() __attribute__((noinline)) {
// CHECK: #1 CallTouchGlobal{{.*}}blacklist2.cpp:[[@LINE+1]]
TouchGlobal();
}
void *Blacklisted_Thread2(void *x) {
Global--;
// CHECK: #2 Blacklisted_Thread2{{.*}}blacklist2.cpp:[[@LINE+1]]
CallTouchGlobal();
barrier_wait(&barrier);
return NULL;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Blacklisted_Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
fprintf(stderr, "PASS\n");
return 0;
}