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comparison compiler-rt/test/dfsan/origin_overlapped.c @ 221:79ff65ed7e25

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LLVM12 Original
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 15 Jun 2021 19:15:29 +0900
parents
children 5f17cb93ff66
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220:42394fc6a535 221:79ff65ed7e25
1 // RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 -mllvm -dfsan-fast-16-labels=true %s -o %t && \
2 // RUN: %run %t >%t.out 2>&1
3 // RUN: FileCheck %s --check-prefix=CHECK < %t.out
4 //
5 // REQUIRES: x86_64-target-arch
6
7 #include <sanitizer/dfsan_interface.h>
8
9 int main(int argc, char *argv[]) {
10 char volatile z1;
11 char volatile z2;
12 dfsan_set_label(8, (void *)&z1, sizeof(z1));
13 dfsan_set_label(16, (void *)&z2, sizeof(z2)); // overwritting the old origin.
14 char c = z1;
15 dfsan_print_origin_trace(&c, "bar");
16 return 0;
17 }
18
19 // CHECK: Taint value 0x8 {{.*}} origin tracking (bar)
20 // CHECK: Origin value: {{.*}}, Taint value was stored to memory at
21 // CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-7]]
22
23 // CHECK: Origin value: {{.*}}, Taint value was created at
24
25 // CHECK: #0 {{.*}} in main {{.*}}origin_overlapped.c:[[@LINE-12]]