1 // RUN: %clangxx_asan -O %s -o %t 2 // RUN: not %run %t crash 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s 3 // RUN: not %run %t bad-bounds 2>&1 | FileCheck --check-prefix=CHECK-BAD-BOUNDS %s 4 // RUN: not %run %t bad-alignment 2>&1 | FileCheck --check-prefix=CHECK-BAD-ALIGNMENT %s 5 // RUN: %env_asan_opts=detect_container_overflow=0 %run %t crash 6 // 7 // Test crash due to __sanitizer_annotate_contiguous_container. 8 9 #include <assert.h> 10 #include <string.h> 11 12 extern "C" { 13 void __sanitizer_annotate_contiguous_container(const void *beg, const void *end, 14 const void *old_mid, 15 const void *new_mid); 16 } // extern "C" 17 18 static volatile int one = 1; 19 20 int TestCrash() { 21 long t[100]; 22 t[60] = 0; 23 __sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 100, 24 &t[0] + 50); 25 // CHECK-CRASH: AddressSanitizer: container-overflow 26 // CHECK-CRASH: if you don't care about these errors you may set ASAN_OPTIONS=detect_container_overflow=0 27 return (int)t[60 * one]; // Touches the poisoned memory. 28 } 29 30 void BadBounds() { 31 long t[100]; 32 // CHECK-BAD-BOUNDS: ERROR: AddressSanitizer: bad parameters to __sanitizer_annotate_contiguous_container 33 __sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 101, 34 &t[0] + 50); 35 } 36 37 void BadAlignment() { 38 int t[100]; 39 // CHECK-BAD-ALIGNMENT: ERROR: AddressSanitizer: bad parameters to __sanitizer_annotate_contiguous_container 40 // CHECK-BAD-ALIGNMENT: ERROR: beg is not aligned by 8 41 __sanitizer_annotate_contiguous_container(&t[1], &t[0] + 100, &t[1] + 10, 42 &t[0] + 50); 43 } 44 45 int main(int argc, char **argv) { 46 assert(argc == 2); 47 if (!strcmp(argv[1], "crash")) 48 return TestCrash(); 49 else if (!strcmp(argv[1], "bad-bounds")) 50 BadBounds(); 51 else if (!strcmp(argv[1], "bad-alignment")) 52 BadAlignment(); 53 } 54
