forked from OSchip/llvm-project
45 lines
971 B
C++
45 lines
971 B
C++
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// Regression test for https://github.com/google/sanitizers/issues/691
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// RUN: %clangxx_asan -O0 %s -o %t -fstack-protector
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// RUN: %run %t 1 2>&1 | FileCheck %s
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// RUN: %run %t 2 2>&1 | FileCheck %s
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#include <alloca.h>
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#include <stdio.h>
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#include <string.h>
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void f1_alloca() {
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char *dynamic_buffer = (char *)alloca(200);
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fprintf(stderr, "dynamic_buffer = %p\n", dynamic_buffer);
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memset(dynamic_buffer, 'y', 200);
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return;
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}
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static const int kDynamicArraySize = 200;
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void f1_vla() {
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char dynamic_buffer[kDynamicArraySize];
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fprintf(stderr, "dynamic_buffer = %p\n", dynamic_buffer);
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memset(dynamic_buffer, 'y', kDynamicArraySize);
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return;
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}
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void f2() {
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char buf[1024];
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memset(buf, 'x', 1024);
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}
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int main(int argc, const char *argv[]) {
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if (!strcmp(argv[1], "1")) {
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f1_alloca();
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} else if (!strcmp(argv[1], "2")) {
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f1_vla();
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}
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f2();
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fprintf(stderr, "Done.\n");
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return 0;
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}
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// CHECK-NOT: ERROR: AddressSanitizer
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// CHECK: Done.
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