| 1 | // REQUIRES: gwp_asan |
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| 2 | // RUN: %clang_gwp_asan -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer %s -g -o %t |
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| 3 | // RUN: %expect_crash %t 2>&1 | FileCheck %s |
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| 4 | |
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| 5 | // Ensure we don't crash when using the unwinder when frame pointers are |
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| 6 | // disabled. |
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| 7 | // RUN: %clang_gwp_asan -fomit-frame-pointer -momit-leaf-frame-pointer %s -g -o %t |
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| 8 | // RUN: %expect_crash %t |
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| 9 | |
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| 10 | // Incomplete backtrace on Armv7 |
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| 11 | // UNSUPPORTED: armhf-linux |
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| 12 | |
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| 13 | #include <stdlib.h> |
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| 14 | |
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| 15 | __attribute__((noinline)) void *allocate_mem() { return malloc(size: 1); } |
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| 16 | |
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| 17 | __attribute__((noinline)) void free_mem(void *ptr) { free(ptr: ptr); } |
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| 18 | |
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| 19 | __attribute__((noinline)) void touch_mem(void *ptr) { |
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| 20 | volatile char sink = *((volatile char *)ptr); |
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| 21 | } |
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| 22 | |
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| 23 | // CHECK: Use After Free |
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| 24 | // CHECK: touch_mem |
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| 25 | // CHECK: was deallocated |
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| 26 | // CHECK: free_mem |
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| 27 | // CHECK: was allocated |
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| 28 | // CHECK: allocate_mem |
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| 29 | |
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| 30 | int main() { |
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| 31 | for (unsigned i = 0; i < 0x10000; ++i) { |
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| 32 | void *ptr = allocate_mem(); |
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| 33 | free_mem(ptr); |
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| 34 | touch_mem(ptr); |
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| 35 | } |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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