forked from OSchip/llvm-project
30 lines
1.0 KiB
C++
30 lines
1.0 KiB
C++
// Test that small memcpy works correctly.
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// RUN: %clangxx_asan %s -o %t
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// RUN: not %run %t 8 24 2>&1 | FileCheck %s --check-prefix=CHECK
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// RUN: not %run %t 16 32 2>&1 | FileCheck %s --check-prefix=CHECK
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// RUN: not %run %t 24 40 2>&1 | FileCheck %s --check-prefix=CHECK
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// RUN: not %run %t 32 48 2>&1 | FileCheck %s --check-prefix=CHECK
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// RUN: not %run %t 40 56 2>&1 | FileCheck %s --check-prefix=CHECK
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// RUN: not %run %t 48 64 2>&1 | FileCheck %s --check-prefix=CHECK
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// REQUIRES: shadow-scale-3
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sanitizer/asan_interface.h>
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int main(int argc, char **argv) {
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assert(argc == 3);
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size_t poison_from = atoi(argv[1]);
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size_t poison_to = atoi(argv[2]);
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assert(poison_from <= poison_to);
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char A1[64], A2[64];
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fprintf(stderr, "%zd %zd\n", poison_from, poison_to - poison_from);
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__asan_poison_memory_region(&A1[0] + poison_from, poison_to - poison_from);
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memcpy(A1, A2, sizeof(A1));
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// CHECK: AddressSanitizer: use-after-poison
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return 0;
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}
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