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Commits on Jan 26, 2017

• [libFuzzer] don't call GetPreviousInstructionPc on the hot path -- only when dumping the PCs

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Commits on Jan 24, 2017

• [sanitizer-coverage] emit __sanitizer_cov_trace_pc_guard w/o a preceding 'if' by default. Update the docs, also add deprecation notes around other parts of sanitizer coverage

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Commits on Jan 23, 2017

• [libFuzzer] mutate empty input using the regular mutators (instead of a custom dummy one). This way when we mutate an empty input there is a chance we will get a dictionary word

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  72e0240

• [libFuzzer] make sure we use the feedback from std::string operator ==

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  fc4ec25

• [libFuzzer] deflake a test

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Commits on Jan 21, 2017

• [libFuzzer] fix gcc build

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  3a0d592

• [libFuzzer] use print+exit(1) instead of assert to report an error

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  e0c77c8

• [libFuzzer] re-enable LLVMFuzzer-RepeatedMemcmp test, cleanup the test runner nearby

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Commits on Jan 20, 2017

• [libFuzzer] call __sanitizer_dump_coverage via EF

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  02e6813

• [libFuzzer] add an assert to protect against LLVMFuzzerInitialize changing argv[0]

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  c292437

• [libFuzzer] experimental support for 'equivalance fuzzing'

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  7404114

Commits on Jan 19, 2017

• [libFuzzer] ensure that entries in PersistentAutoDictionary are not empty

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  1829afe

• [libFuzzer] improve -minimize_crash: honor -artifact_prefix= and don't special case 2-byte inputs

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  6610ca1

• [libFuzzer] add two tests for experimenting with equivalence fuzzing

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  e1feb39

Commits on Jan 18, 2017

• [libFuzzer] remove stale code

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  c4a7209

• [libFuzzer] exit(1) on failed merge

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  4fc1671

• [libFuzzer] better link for trophies

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Commits on Jan 17, 2017

• [libFuzzer] add ATTRIBUTE_NO_SANITIZE_MEMORY to sanitizer hooks

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  0f46395

• [libFuzzer] use table of recent compares for memcmp/strcmp (to unify the code between cmp and memcmp handling)

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• [libFuzzer] copy the options inside MutationDispatcher to avoid use-after-scope in mutator tests

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Commits on Jan 6, 2017

• [libFuzzer] remove dead code, NFC

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Commits on Jan 5, 2017

• [libFuzzer] improve error handling during the merge (handle various IO failures)

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  93bacfd

• [libFuzzer] use /tmp (or $TMPDIR, if present) to store temp files during merge

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Commits on Jan 3, 2017

• [libFuzzer] disable -print_pcs by default (was enabled by mistake)

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Commits on Dec 30, 2016

• [libFuzzer] cleaner implementation of -print_pcs=1

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  f178652

Commits on Dec 29, 2016

• [libFuzzer] make __sanitizer_cov_trace_switch more predictable

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Commits on Dec 27, 2016

• [libFuzzer] add an experimental flag -experimental_len_control=1 that sets max_len to 1M and tries to increases the actual max sizes of mutations very gradually (second attempt)

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  d31ce37

• [libFuzzer] don't create large random mutations when given an empty seed

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  8f45dd3

• [sanitizer-coverage] sort the switch cases

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  834b93c

• [libFuzzer] fix UB and simplify the computation of the RNG seed (https://llvm.org/bugs/show_bug.cgi?id=31456)

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  5249221

Commits on Dec 17, 2016

• [libFuzzer] use less memory for merge

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• [libFuzzer] speed up __sanitizer_cov_trace_switch a bit more (remove DIV)

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  dbf2883

• [libFuzzer] remove stale test

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• [libFuzzer] when tracing switch statements, handle only one case at a time (to make things faster). Also ensure that the signals from value profile do not intersect with the regular coverage

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Commits on Dec 16, 2016

• [libFuzzer] avoid msan false positives in more cases

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