34 lines
881 B
C++
34 lines
881 B
C++
// RUN: %clangxx_hwasan -DSIZE=16 -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
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// REQUIRES: stable-runtime
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#include <assert.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <sanitizer/hwasan_interface.h>
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int main() {
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void *alloc = malloc(4096);
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// __hwasan_tag_memory expects untagged pointers.
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char *p = (char *)__hwasan_tag_pointer(alloc, 0);
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assert(p);
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__hwasan_tag_memory(p, 1, 32);
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__hwasan_tag_memory(p + 32, 3, 16);
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__hwasan_tag_memory(p + 48, 0, 32);
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__hwasan_tag_memory(p + 80, 4, 16);
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char *q = (char *)__hwasan_tag_pointer(p, 7);
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__hwasan_print_shadow(q + 5, 89 - 5);
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// CHECK: HWASan shadow map for {{.*}}5 .. {{.*}}9 (pointer tag 7)
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// CHECK-NEXT: {{.*}}0: 1
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// CHECK-NEXT: {{.*}}0: 1
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// CHECK-NEXT: {{.*}}0: 3
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// CHECK-NEXT: {{.*}}0: 0
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// CHECK-NEXT: {{.*}}0: 0
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// CHECK-NEXT: {{.*}}0: 4
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free(alloc);
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}
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