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21 lines
579 B
21 lines
579 B
4 months ago
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// Check that __asan_poison_memory_region works.
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// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
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//
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// Check that we can disable it
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// RUN: %env_asan_opts=allow_user_poisoning=0 %run %t
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#include <stdlib.h>
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extern "C" void __asan_poison_memory_region(void *, size_t);
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int main(int argc, char **argv) {
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char *x = new char[16];
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x[10] = 0;
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__asan_poison_memory_region(x, 16);
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int res = x[argc * 10]; // BOOOM
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// CHECK: ERROR: AddressSanitizer: use-after-poison
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// CHECK: main{{.*}}use-after-poison.cpp:[[@LINE-2]]
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delete [] x;
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return res;
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}
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