[all-commits] [llvm/llvm-project] ad7b90: [libFuzzer] Make dataflow and focus functions more...

[Max Moroz via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ad7b908b4ef973a139fc8b78dd95990e66aabbe3
      https://github.com/llvm/llvm-project/commit/ad7b908b4ef973a139fc8b78dd95990e66aabbe3
  Author: Max Moroz <mmoroz at chromium.org>
  Date:   2020-02-03 (Mon, 03 Feb 2020)

  Changed paths:
    M compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp
    M compiler-rt/lib/fuzzer/FuzzerTracePC.cpp
    M compiler-rt/test/fuzzer/dataflow.test
    A compiler-rt/test/fuzzer/focus-function.test
    R compiler-rt/test/fuzzer/target-function.test

  Log Message:
  -----------
  [libFuzzer] Make dataflow and focus functions more user friendly.

Summary:
- Fail loudly if SetFocusFunction failed when it should not. For more info see
  - https://github.com/google/oss-fuzz/issues/3311
  - https://github.com/google/sanitizers/issues/1190
- Fail loudly if CollectDataFlow is called without seed corpus.

Reviewers: kcc, metzman

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D73813