forked from OSchip/llvm-project
39 lines
970 B
C++
39 lines
970 B
C++
// RUN: %clangxx -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
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// Malloc/free hooks are not supported on Windows.
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// XFAIL: win32
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#include <stdlib.h>
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#include <unistd.h>
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#include <sanitizer/allocator_interface.h>
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extern "C" {
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const volatile void *global_ptr;
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// Note: avoid calling functions that allocate memory in malloc/free
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// to avoid infinite recursion.
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void __sanitizer_malloc_hook(const volatile void *ptr, size_t sz) {
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if (__sanitizer_get_ownership(ptr)) {
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write(1, "MallocHook\n", sizeof("MallocHook\n"));
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global_ptr = ptr;
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}
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}
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void __sanitizer_free_hook(const volatile void *ptr) {
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if (__sanitizer_get_ownership(ptr) && ptr == global_ptr)
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write(1, "FreeHook\n", sizeof("FreeHook\n"));
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}
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} // extern "C"
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int main() {
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volatile int *x = new int;
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// CHECK: MallocHook
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// Check that malloc hook was called with correct argument.
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if (global_ptr != (void*)x) {
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_exit(1);
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}
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*x = 0;
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delete x;
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// CHECK: FreeHook
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return 0;
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}
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