| 1 | // RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \ |
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| 2 | // RUN: %run %t >%t.out 2>&1 |
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| 3 | // RUN: FileCheck %s < %t.out |
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| 4 | |
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| 5 | #include <sanitizer/dfsan_interface.h> |
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| 6 | |
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| 7 | int main(int argc, char *argv[]) { |
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| 8 | char volatile z1; |
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| 9 | char volatile z2; |
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| 10 | dfsan_set_label(label: 8, addr: (void *)&z1, size: sizeof(z1)); |
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| 11 | dfsan_set_label(label: 16, addr: (void *)&z2, size: sizeof(z2)); // overwritting the old origin. |
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| 12 | char c = z1; |
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| 13 | dfsan_print_origin_trace(addr: &c, description: "bar" ); |
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| 14 | return 0; |
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| 15 | } |
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| 16 | |
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| 17 | // CHECK: Taint value 0x8 {{.*}} origin tracking (bar) |
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| 18 | // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
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| 19 | // CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-7]] |
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| 20 | |
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| 21 | // CHECK: Origin value: {{.*}}, Taint value was created at |
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| 22 | |
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| 23 | // CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-12]] |
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| 24 | |
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