1// RUN: %clang_tysan %s -o %t && %run %t 10 >%t.out.0 2>&1
2// RUN: FileCheck --check-prefixes=CHECK,CHECK-BOTH %s < %t.out.0
3// RUN: echo "fun:typeViolationignored" > %tmp
4// RUN: echo "src:*ignorelist.h" > %tmp
5// RUN: %clang_tysan -fsanitize-ignorelist=%tmp %s -o %t && %run %t 10 >%t.out 2>&1
6// RUN: FileCheck --check-prefixes=CHECK-IGNORELIST,CHECK-BOTH %s < %t.out
7
8#include "ignorelist.h"
9#include <stdio.h>
10#include <stdlib.h>
11
12void typeViolationIgnored(float *fPtr) { printf(format: "As int: %d\n", *(int *)fPtr); }
13
14void typeViolation(int *fPtr) { printf(format: "As float: %f\n", *(float *)fPtr); }
15
16int main() {
17 float *f = (float *)malloc(size: sizeof(float));
18 *f = 413.0f;
19 typeViolationIgnored(fPtr: f);
20 // CHECK: TypeSanitizer: type-aliasing-violation on address 0x{{.*}}
21 // CHECK-NEXT: READ of size 4 at 0x{{.*}} with type int accesses an existing object of type float
22 // CHECK-IGNORELIST-NOT: TypeSanitizer: type-aliasing-violation on address 0x{{.*}}
23
24 int *i = (int *)malloc(size: sizeof(int));
25 *i = 612;
26 typeViolation(fPtr: i);
27 // CHECK-BOTH: TypeSanitizer: type-aliasing-violation on address 0x{{.*}}
28 // CHECK-BOTH: READ of size 4 at 0x{{.*}} with type float accesses an existing object of type int
29
30 typeViolationMultiFile(value: (void *)i);
31 // CHECK: TypeSanitizer: type-aliasing-violation on address 0x{{.*}}
32 // CHECK-IGNORELIST-NOT: TypeSanitizer: type-aliasing-violation on address 0x{{.*}}
33
34 return 0;
35}
36

source code of compiler-rt/test/tysan/ignorelist.c