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