forked from OSchip/llvm-project
30 lines
1014 B
C
30 lines
1014 B
C
// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 -mllvm -dfsan-fast-16-labels=true %s -o %t && \
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// RUN: %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK < %t.out
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//
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// REQUIRES: x86_64-target-arch
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#include <sanitizer/dfsan_interface.h>
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__attribute__((noinline)) uint64_t foo(uint64_t x, uint64_t y) { return x + y; }
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int main(int argc, char *argv[]) {
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uint64_t a = 10;
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uint64_t b = 20;
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dfsan_set_label(8, &a, sizeof(a));
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uint64_t c = foo(a, b);
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for (int i = 0; i < argc; ++i)
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c += foo(c, b);
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dfsan_print_origin_trace(&c, NULL);
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}
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// CHECK: Taint value 0x8 {{.*}} origin tracking ()
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// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-6]]
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// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-11]]
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// CHECK: Origin value: {{.*}}, Taint value was created at
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// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-15]]
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