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20 Commits

Author SHA1 Message Date
Kostya Serebryany
51ddb88300 [libFuzzer] add one more value profile metric, under a flag (experimental) 
llvm-svn: 336234
 2018-07-03 22:33:09 +00:00
Matt Morehouse
988f2da613 [libFuzzer] Use Vector rather than std::vector. 
llvm-svn: 335487
 2018-06-25 15:59:24 +00:00
Kostya Serebryany
111d0b2aec [libFuzzer] When printing NEW_FUNC, use 1-base indexing. 
Summary: Otherwise we print things like [0/1] which is visually confusing.

Reviewers: kcc

Reviewed By: kcc

Subscribers: delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D47837

llvm-svn: 334234
 2018-06-07 21:15:24 +00:00
Kostya Serebryany
69c2b71a51 [libFuzzer] reinstate -dump_coverage, which is still in use (reverts r332036) 
llvm-svn: 332876
 2018-05-21 19:47:00 +00:00
Kostya Serebryany
e9c6f06cce [libFuzzer] add an experimental flag -focus_function: libFuzzer will try to focus on inputs that trigger that function 
llvm-svn: 332554
 2018-05-16 23:26:37 +00:00
Kostya Serebryany
6a6e690d24 [libFuzzer] refactor the implementation of -print_coverage 
llvm-svn: 332073
 2018-05-11 01:17:52 +00:00
Kostya Serebryany
d80e821646 [libFuzzer] remove the dump_coverage flag, it hasn't been working with the inline sanitizer coverage anyway 
llvm-svn: 332036
 2018-05-10 20:24:39 +00:00
Kostya Serebryany
59bf1e8b36 [libFuzzer] remove the experimental support for clang coverage instrumentation. This mode has not been used and our experiments with https://github.com/google/fuzzer-test-suite show that this signal is weaker than the SanitizerCoverage 
llvm-svn: 332034
 2018-05-10 20:12:15 +00:00
Dan Liew
b7a3bc99c9 [LibFuzzer] Report when custom counters are available. 
This upstreams a feature from the JFS solver's fork of LibFuzzer.

Differential Revision: https://reviews.llvm.org/D45675

llvm-svn: 330391
 2018-04-20 06:46:19 +00:00
Kostya Serebryany
fc3079963f [libFuzzer] print a better warning if we hit the ld bug 
llvm-svn: 315778
 2017-10-14 00:07:11 +00:00
Kostya Serebryany
c07008653c [libFuzzer] allow -print_funcs=N: N is the max number of new covered function printed 
llvm-svn: 311945
 2017-08-28 22:52:22 +00:00
George Karpenkov
bebcbfb46d [libFuzzer] Use custom allocators for STL containers in libFuzzer. 
Avoids ODR violations causing spurious ASAN warnings.

Differential Revision: https://reviews.llvm.org/D37086

llvm-svn: 311866
 2017-08-27 23:20:09 +00:00
George Karpenkov
24069a0424 Revert "[libFuzzer] Use custom allocators for STL containers in libFuzzer" 
This reverts commit 3539efc2f2218dba2bcbd645d0fe276f2b5cf588.

llvm-svn: 311831
 2017-08-26 17:50:35 +00:00
George Karpenkov
d50410bfb1 [libFuzzer] Use custom allocators for STL containers in libFuzzer 
Avoids ODR violations causing spurious ASAN container overflow warnings.

Differential Revision: https://reviews.llvm.org/D37086

llvm-svn: 311830
 2017-08-26 17:17:37 +00:00
Kostya Serebryany
2eef816e6e [libFuzzer] add -print_funcs=1 (on bey default): print newly discovered functions during fuzzing 
llvm-svn: 311797
 2017-08-25 20:09:25 +00:00
Kostya Serebryany
d3e4b7e24a [sanitizer-coverage] extend fsanitize-coverage=pc-table with flags for every PC 
llvm-svn: 311794
 2017-08-25 19:29:47 +00:00
Matt Morehouse
b1fa8255db [SanitizerCoverage] Optimize stack-depth instrumentation. 
Summary:
Use the initialexec TLS type and eliminate calls to the TLS
wrapper.  Fixes the sanitizer-x86_64-linux-fuzzer bot failure.

Reviewers: vitalybuka, kcc

Reviewed By: kcc

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D37026

llvm-svn: 311490
 2017-08-22 21:28:29 +00:00
Kostya Serebryany
33fb36c353 [libFuzzer] fix the stack-depth initialization, add a lit test for DeepRecursionTest.cpp 
llvm-svn: 311421
 2017-08-22 01:50:00 +00:00
Kostya Serebryany
f65cf64fa2 [libFuzzer] apply changes lost during the migration to compiler-rt 
llvm-svn: 311420
 2017-08-22 01:28:32 +00:00
George Karpenkov
10ab2ace13 Move libFuzzer to compiler_rt. 
Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.

Differential Revision: https://reviews.llvm.org/D36908

llvm-svn: 311407
 2017-08-21 23:25:50 +00:00