43 lines
1,022 B
C
43 lines
1,022 B
C
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// Test that disabling/enabling tagging does not trigger false reports on
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// allocations happened in a different state.
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// RUN: %clang_hwasan -O1 %s -o %t && %run %t 2>&1
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#include <assert.h>
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#include <sanitizer/hwasan_interface.h>
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#include <stdlib.h>
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enum {
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COUNT = 5,
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SZ = 10,
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};
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void *x[COUNT];
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int main() {
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__hwasan_enable_allocator_tagging();
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for (unsigned i = 0; i < COUNT; ++i) {
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x[i] = malloc(SZ);
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assert(__hwasan_test_shadow(x[i], SZ) == -1);
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}
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for (unsigned i = 0; i < COUNT; ++i)
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free(x[i]);
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__hwasan_disable_allocator_tagging();
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for (unsigned i = 0; i < COUNT; ++i) {
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x[i] = malloc(SZ);
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assert(__hwasan_tag_pointer(x[i], 0) == x[i]);
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assert(__hwasan_test_shadow(x[i], SZ) == -1);
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}
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for (unsigned i = 0; i < COUNT; ++i)
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free(x[i]);
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__hwasan_enable_allocator_tagging();
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for (unsigned i = 0; i < COUNT; ++i) {
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x[i] = malloc(SZ);
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assert(__hwasan_test_shadow(x[i], SZ) == -1);
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}
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for (unsigned i = 0; i < COUNT; ++i)
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free(x[i]);
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return 0;
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}
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