| Alexey Samsonov | 889e3ab | 2013-06-07 09:38:55 +0000 | [diff] [blame] | 1 | // RUN: %clangxx_asan -O1 %s -o %t |
| Alexey Samsonov | 13f89cd | 2013-06-28 15:52:44 +0000 | [diff] [blame^] | 2 | // RUN: %t 0 2>&1 | FileCheck %s --check-prefix=CHECK0 |
| 3 | // RUN: %t 1 2>&1 | FileCheck %s --check-prefix=CHECK1 |
| 4 | // RUN: %t 2 2>&1 | FileCheck %s --check-prefix=CHECK2 |
| 5 | // RUN: %t 3 2>&1 | FileCheck %s --check-prefix=CHECK3 |
| Kostya Serebryany | 667a34a | 2013-03-22 10:36:24 +0000 | [diff] [blame] | 6 | |
| 7 | #define NOINLINE __attribute__((noinline)) |
| 8 | inline void break_optimization(void *arg) { |
| 9 | __asm__ __volatile__("" : : "r" (arg) : "memory"); |
| 10 | } |
| 11 | |
| 12 | NOINLINE static void Frame0(int frame, char *a, char *b, char *c) { |
| 13 | char s[4] = {0}; |
| 14 | char *d = s; |
| 15 | break_optimization(&d); |
| 16 | switch (frame) { |
| 17 | case 3: a[5]++; break; |
| 18 | case 2: b[5]++; break; |
| 19 | case 1: c[5]++; break; |
| 20 | case 0: d[5]++; break; |
| 21 | } |
| 22 | } |
| 23 | NOINLINE static void Frame1(int frame, char *a, char *b) { |
| 24 | char c[4] = {0}; Frame0(frame, a, b, c); |
| 25 | break_optimization(0); |
| 26 | } |
| 27 | NOINLINE static void Frame2(int frame, char *a) { |
| 28 | char b[4] = {0}; Frame1(frame, a, b); |
| 29 | break_optimization(0); |
| 30 | } |
| 31 | NOINLINE static void Frame3(int frame) { |
| 32 | char a[4] = {0}; Frame2(frame, a); |
| 33 | break_optimization(0); |
| 34 | } |
| 35 | |
| 36 | int main(int argc, char **argv) { |
| 37 | if (argc != 2) return 1; |
| 38 | Frame3(argv[1][0] - '0'); |
| 39 | } |
| 40 | |
| 41 | // CHECK0: AddressSanitizer: stack-buffer-overflow |
| 42 | // CHECK0: #0{{.*}}Frame0 |
| 43 | // CHECK0: #1{{.*}}Frame1 |
| 44 | // CHECK0: #2{{.*}}Frame2 |
| 45 | // CHECK0: #3{{.*}}Frame3 |
| 46 | // CHECK0: is located in stack of thread T0 at offset |
| 47 | // CHECK0-NEXT: #0{{.*}}Frame0 |
| 48 | // |
| 49 | // CHECK1: AddressSanitizer: stack-buffer-overflow |
| 50 | // CHECK1: is located in stack of thread T0 at offset |
| 51 | // CHECK1-NEXT: #0{{.*}}Frame1 |
| 52 | // |
| 53 | // CHECK2: AddressSanitizer: stack-buffer-overflow |
| 54 | // CHECK2: is located in stack of thread T0 at offset |
| 55 | // CHECK2-NEXT: #0{{.*}}Frame2 |
| 56 | // |
| 57 | // CHECK3: AddressSanitizer: stack-buffer-overflow |
| 58 | // CHECK3: is located in stack of thread T0 at offset |
| 59 | // CHECK3-NEXT: #0{{.*}}Frame3 |