7009c981ec
Reapply "[sanitizer][asan][win] Intercept _strdup on Windows instead of
strdup
This includes test changes and interface changes that are duplicated in
https://github.com/llvm/llvm-project/pull/81677
This reverts commit 03dc87e939.
33 lines
990 B
C++
33 lines
990 B
C++
// RUN: %clang_cl_asan %Od %s %Fe%t
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// RUN: not %run %t 2>&1 | FileCheck %s
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#include <stdio.h>
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#include <string.h>
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#include <malloc.h>
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int main() {
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char *ptr = _strdup("Hello");
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int subscript = 1;
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ptr[subscript] = '3';
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printf("%s\n", ptr);
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fflush(0);
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// CHECK: H3llo
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subscript = -1;
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ptr[subscript] = 42;
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// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
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// CHECK: WRITE of size 1 at [[ADDR]] thread T0
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// CHECK: {{#0 .* main .*}}intercept_strdup.cpp:[[@LINE-3]]
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// CHECK: [[ADDR]] is located 1 bytes before 6-byte region
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// CHECK: allocated by thread T0 here:
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//
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// The first frame is our wrapper normally but will be malloc in the dynamic
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// config.
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// CHECK: #0 {{.*}} in {{malloc|_strdup}}
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//
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// The local call to _strdup above may be the second or third frame depending
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// on whether we're using the dynamic config.
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// CHECK: #{{[12]}} {{.*}} in main {{.*}}intercept_strdup.cpp:[[@LINE-21]]
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free(ptr);
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}
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