1 // RUN: %clangxx_asan -O1 %s -o %t 2 // RUN: not %run %t 0 2>&1 | FileCheck %s --check-prefix=CHECK0 3 // RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK1 4 // RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK2 5 // RUN: not %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK3 6 7 // FIXME: Symbolization problems. 8 // XFAIL: win32 9 10 #define NOINLINE __attribute__((noinline)) 11 inline void break_optimization(void *arg) { 12 __asm__ __volatile__("" : : "r" (arg) : "memory"); 13 } 14 15 NOINLINE static void Frame0(int frame, char *a, char *b, char *c) { 16 char s[4] = {0}; 17 char *d = s; 18 break_optimization(&d); 19 switch (frame) { 20 case 3: a[5]++; break; 21 case 2: b[5]++; break; 22 case 1: c[5]++; break; 23 case 0: d[5]++; break; 24 } 25 } 26 NOINLINE static void Frame1(int frame, char *a, char *b) { 27 char c[4] = {0}; Frame0(frame, a, b, c); 28 break_optimization(0); 29 } 30 NOINLINE static void Frame2(int frame, char *a) { 31 char b[4] = {0}; Frame1(frame, a, b); 32 break_optimization(0); 33 } 34 NOINLINE static void Frame3(int frame) { 35 char a[4] = {0}; Frame2(frame, a); 36 break_optimization(0); 37 } 38 39 int main(int argc, char **argv) { 40 if (argc != 2) return 1; 41 Frame3(argv[1][0] - '0'); 42 } 43 44 // CHECK0: AddressSanitizer: stack-buffer-overflow 45 // CHECK0: #0{{.*}}Frame0 46 // CHECK0: #1{{.*}}Frame1 47 // CHECK0: #2{{.*}}Frame2 48 // CHECK0: #3{{.*}}Frame3 49 // CHECK0: is located in stack of thread T0 at offset 50 // CHECK0-NEXT: #0{{.*}}Frame0 51 // 52 // CHECK1: AddressSanitizer: stack-buffer-overflow 53 // CHECK1: is located in stack of thread T0 at offset 54 // CHECK1-NEXT: #0{{.*}}Frame1 55 // 56 // CHECK2: AddressSanitizer: stack-buffer-overflow 57 // CHECK2: is located in stack of thread T0 at offset 58 // CHECK2-NEXT: #0{{.*}}Frame2 59 // 60 // CHECK3: AddressSanitizer: stack-buffer-overflow 61 // CHECK3: is located in stack of thread T0 at offset 62 // CHECK3-NEXT: #0{{.*}}Frame3 63
