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 12 void typeViolationIgnored(float *fPtr) { printf("As int: %d\n", *(int *)fPtr); } 13 14 void typeViolation(int *fPtr) { printf("As float: %f\n", *(float *)fPtr); } 15 16 int main() { 17 float *f = (float *)malloc(sizeof(float)); 18 *f = 413.0f; 19 typeViolationIgnored(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(sizeof(int)); 25 *i = 612; 26 typeViolation(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((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