6b936d88a4
Summary: dfsan_flush() allows to restart tain tracking from scratch in the same process. The primary purpose right now is to allow more efficient data flow tracing for DFT fuzzing: https://github.com/google/oss-fuzz/issues/1632 Reviewers: pcc Reviewed By: pcc Subscribers: delcypher, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63037 llvm-svn: 363321
29 lines
640 B
C
29 lines
640 B
C
// Tests dfsan_flush().
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// RUN: %clang_dfsan %s -o %t && %run %t
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#include <sanitizer/dfsan_interface.h>
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#include <assert.h>
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#include <stdlib.h>
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int global;
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int main() {
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int local;
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int *heap = (int*)malloc(sizeof(int));
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dfsan_set_label(10, &global, sizeof(global));
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dfsan_set_label(20, &local, sizeof(local));
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dfsan_set_label(30, heap, sizeof(*heap));
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assert(dfsan_get_label(global) == 10);
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assert(dfsan_get_label(local) == 20);
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assert(dfsan_get_label(*heap) == 30);
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dfsan_flush();
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assert(dfsan_get_label(global) == 0);
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assert(dfsan_get_label(local) == 0);
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assert(dfsan_get_label(*heap) == 0);
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free(heap);
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}
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