| 1 | // RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s |
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| 2 | // RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s |
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| 3 | // RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s |
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| 4 | // RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s |
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| 5 | |
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| 6 | #include <assert.h> |
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| 7 | #include <sanitizer/hwasan_interface.h> |
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| 8 | #include <stdlib.h> |
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| 9 | #include <string.h> |
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| 10 | #include <unistd.h> |
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| 11 | |
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| 12 | __attribute__((no_sanitize("hwaddress" ))) void |
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| 13 | ForceCallInterceptor(void *p, const void *a, size_t size) { |
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| 14 | assert(memcmp(p, a, size) == 0); |
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| 15 | } |
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| 16 | |
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| 17 | int main(int argc, char **argv) { |
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| 18 | __hwasan_enable_allocator_tagging(); |
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| 19 | char a[] = {static_cast<char>(argc), 2, 3, 4}; |
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| 20 | int size = sizeof(a); |
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| 21 | char *p = (char *)malloc(size: size); |
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| 22 | memcpy(dest: p, src: a, n: size); |
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| 23 | free(ptr: p); |
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| 24 | ForceCallInterceptor(p, a, size); |
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| 25 | return 0; |
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| 26 | // CHECK: HWAddressSanitizer: tag-mismatch on address |
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| 27 | // CHECK: READ of size 4 |
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| 28 | // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-4]] |
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| 29 | // CHECK: Cause: use-after-free |
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| 30 | // CHECK: freed by thread |
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| 31 | // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-8]] |
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| 32 | // CHECK: previously allocated by thread |
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| 33 | // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-12]] |
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| 34 | } |
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| 35 | |
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