170 Commits

Author SHA1 Message Date
Kostya Serebryany
25d6b95679 [libFuzzer] remove a couple of reduntant includes
llvm-svn: 312848
2017-09-09 00:56:34 +00:00
Kostya Serebryany
082e9a7528 [libFuzzer] tolerate missing files when loading the seed corpus
llvm-svn: 312269
2017-08-31 19:17:15 +00:00
Kamil Rytarowski
8da2722a9f Add preliminary NetBSD support in libfuzzer
Summary:
This code already works and passes some number of tests.

There is need to finish remaining sanitizers to get better coverage.

Many tests fail due to overly long file names of executables (>31).
This is a current shortcoming of the NetBSD 8(beta) kernel, as
certain functions can fail (like retrieving file name of executable).

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, kcc, vitalybuka, george.karpenkov

Reviewed By: kcc

Subscribers: mgorny, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D37304

llvm-svn: 312183
2017-08-30 22:44:11 +00:00
Kostya Serebryany
4faeb87ebe [libFUzzer] change the way we load the seed corpora: instead of loading all files and these executing all files, load and execute them one-by-one. This should reduce the memory usage in many cases
llvm-svn: 312033
2017-08-29 20:51:24 +00:00
Kostya Serebryany
3a8e3c8336 [libFuzzer] refactoring: move reading the seed corpus closer to where it's consumed; NFC
llvm-svn: 311972
2017-08-29 02:05:01 +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
dacfd66dfd [libFuzzer] Fix libFuzzer flag propagation for standalone builds.
Under the previous configurations, flags from SANITIZER_COMMON were not
propagated for standalone builds.

Differential Revision: https://reviews.llvm.org/D37225

llvm-svn: 311912
2017-08-28 19:44:19 +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
09c4161029 [libFuzzer] prepare tests for switching from -fsanitize-coverage=trace-pc-guard to -fsanitize-coverage=inline-8bit-counters
llvm-svn: 311798
2017-08-25 20:20:46 +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
George Karpenkov
6bb45f793f [libFuzzer] Move check for thread_local back into libFuzzer's CMake,
as it breaks builtin standalone build on some bots.

llvm-svn: 311482
2017-08-22 18:34:28 +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
Kostya Serebryany
055f441bd2 [libFuzzer] better README.txt
llvm-svn: 311418
2017-08-22 01:15:40 +00:00
Kostya Serebryany
0977643039 [libFuzzer] remove stale file
llvm-svn: 311417
2017-08-22 01:14:53 +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