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331 Commits

Author SHA1 Message Date
Vitaly Buka 72b8acfb70 [libFuzzer] Fix test on Windows. 
llvm-svn: 298757
 2017-03-25 01:19:45 +00:00
Kostya Serebryany 86e630b857 [libFuzzer] read asan's dedup_token while minimizing a crash and stop minimization if another bug was found during minimization (https://github.com/google/oss-fuzz/issues/452) 
llvm-svn: 298755
 2017-03-25 00:56:08 +00:00
Kostya Serebryany c58982d6fa [libFuzzer] be more careful when calling strlen of strcmp parameters, PR32357 
llvm-svn: 298746
 2017-03-24 22:19:52 +00:00
Kostya Serebryany dba9ded61f [libFuzzer] honor -exact_artifact_path for all intermediate files during crash minimization (https://github.com/google/oss-fuzz/issues/250) 
llvm-svn: 298740
 2017-03-24 21:09:16 +00:00
Kostya Serebryany e54785c6e9 [libFuzzer] split two tests to get more parallelism in test runs 
llvm-svn: 298673
 2017-03-24 00:51:18 +00:00
Kostya Serebryany 382730ab23 [libFuzzer] increase kFeatureSetSize to 2^21 and make InputCorpus scale to that size. This will potentially make libFuzzer more sensitive on targets with lots of signals 
llvm-svn: 298671
 2017-03-24 00:45:15 +00:00
Kostya Serebryany 5f25495c4d [libFuzzer] fix non-linux build 
llvm-svn: 298666
 2017-03-23 23:48:47 +00:00
Kostya Serebryany 6ca44f9161 [libFuzzer] create experimental support for user-provided coverage signal 
llvm-svn: 298654
 2017-03-23 22:43:12 +00:00
Kostya Serebryany 4fc6dd7f8f [libFuzzer] add two experimental flags to make corpus merging more scalable: -save_coverage_summary/-load_coverage_summary. This is still WIP, the documentation will come later if these flags survive 
llvm-svn: 298548
 2017-03-22 20:32:44 +00:00
Kostya Serebryany a52c8d0daf [libFuzzer] add a test with two different bugs 
llvm-svn: 298030
 2017-03-17 01:33:16 +00:00
Kostya Serebryany a43a299382 [libFuzzer] remove stale code 
llvm-svn: 297781
 2017-03-14 21:30:14 +00:00
Vitaly Buka 0c736d8b36 [libFuzzer] Reorder includes in test 
llvm-svn: 297692
 2017-03-13 23:49:00 +00:00
Vitaly Buka 27441e5c47 [libFuzzer] Fix compilation of CustomCrossOverAndMutateTest on Windows 
llvm-svn: 297690
 2017-03-13 23:46:30 +00:00
Kostya Serebryany d481e1c361 [libFuzzer] add more iterations to LLVMFuzzer-Memcmp64BytesTest 
llvm-svn: 297554
 2017-03-11 05:14:49 +00:00
Kostya Serebryany b6b2f18ea8 [libFuzzer] add test/LargeTest.cpp, mostly for manual experiments with large number of edges, not yet suitable for unit testing 
llvm-svn: 297544
 2017-03-11 01:54:06 +00:00
Kostya Serebryany 7939ee4d51 [libFuzzer] remove fuzzer-jobs.test which is flaky and not very useful 
llvm-svn: 297543
 2017-03-11 01:48:54 +00:00
Vitaly Buka 91266b4752 [fuzzer] Don't crash if LLVMFuzzerMutate was called by CustomCrossOver 
Reviewers: kcc

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30682

llvm-svn: 297202
 2017-03-07 20:37:38 +00:00
Kuba Mracek 00c7592a6b Un-XFAIL Fuzzer/test/dump_coverage.test. This now passes on Darwin (after r297094). 
llvm-svn: 297110
 2017-03-07 01:01:38 +00:00
Mike Aizatsky 15492af547 [libfuzzer] do not use xargs for shell expansion 
Summary:
After https://reviews.llvm.org/rL296904 xargs shouldn't be necesssary.

Differential Revision: https://reviews.llvm.org/D30371

llvm-svn: 297094
 2017-03-06 23:42:14 +00:00
Mehdi Amini 6dabadab78 un-Xfail Fuzzer test that decided to pass on Green Dragon 
It may be flacky, I'll turn it into unsupported if it fails again.

llvm-svn: 296913
 2017-03-03 21:28:05 +00:00
Mehdi Amini 1d9f3fe77c Mark some libFuzzer tests as XFAIL'd on Darwin 
We're bringing up a bot on Green Dragon right now:

http://green.lab.llvm.org/green/view/Experimental/job/libFuzzer

llvm-svn: 296526
 2017-02-28 21:45:59 +00:00
Justin Bogner d519a92a27 [libFuzzer] Update traces hooks test after r293741 
This test now passes on darwin.

llvm-svn: 295902
 2017-02-22 23:12:36 +00:00
Justin Bogner 59c8420018 [libFuzzer] Mark a test that infinite loops as unsupported 
We need to investigate this, but for now it just causes too much
headache when trying to run these tests.

llvm-svn: 295900
 2017-02-22 23:05:17 +00:00
Kostya Serebryany 32c5004cf5 [libFuzzer] increase the size of FixedWord from 27 to 64, see PR31950 
llvm-svn: 295117
 2017-02-14 23:02:37 +00:00
Marcos Pividori a0b23b8e63 [libFuzzer] Export external functions on tests. 
We need to export external functions so they are found when calling
GetProcAddress() on Windows. But we can't use `__declspec(dllexport)` because
we want the targets to be completely independent from the fuzz engines and don't
depend on other header files. Also, we don't want to include platform specific
code managed with conditional macros.
So, the solution is to add the exported symbols with linker flags in cmake.

Differential revision: https://reviews.llvm.org/D29752

llvm-svn: 294688
 2017-02-10 01:40:28 +00:00
Marcos Pividori 5a53567620 [libFuzzer] Use long long to ensure 64 bits. 
We should always use unsigned long long to ensure 64 bits. On Windows, unsigned
long is 4 bytes. This was the reason why value-profile-cmp4.test was failing on
Windows.

Differential Revision: https://reviews.llvm.org/D29617

llvm-svn: 294390
 2017-02-08 00:03:31 +00:00
Marcos Pividori 2a318a18db [libFuzzer] Use custom target instead of list of binaries for tests. 
Update cmake to use a custom target TestBinaries instead of a list of targets.
This simplifies cmake, and fix some errors. This way, we don't have to propagate
the values into parents directories. We only need to use add_dependencies.

Differential Revision: https://reviews.llvm.org/D29593

llvm-svn: 294389
 2017-02-08 00:03:26 +00:00
Marcos Pividori e219d40191 [libFuzzer] Change Uninstrumented test name. 
On Windows, executables with the word "uninst" included in their names are
associated with administrator privileges.

Differential Revision: https://reviews.llvm.org/D29549

llvm-svn: 294387
 2017-02-08 00:03:13 +00:00
Marcos Pividori fd6578896d [libFuzzer] fuzzer-jobs requires posix. 
llvm-svn: 294386
 2017-02-08 00:03:07 +00:00
Marcos Pividori c7ac33454f [libFuzzer] Update fuzzer.test to properly set environment variables. 
Use env to set environment variables, so it works on Windows and Linux.

Differential Revision: https://reviews.llvm.org/D29537

llvm-svn: 294385
 2017-02-08 00:03:03 +00:00
Marcos Pividori 992e6308a7 [libFuzzer] Don't add newline character when using echo in tests. 
Add the option "-n", so we don't add a new line character at the end of the file
when using echo. (on Windows this means 2 characters).

Differential Revision: https://reviews.llvm.org/D29536

llvm-svn: 294384
 2017-02-08 00:02:59 +00:00
Marcos Pividori abcdcf9f86 [libFuzzer] Disable ulimit test on windows. 
Differential Revision: https://reviews.llvm.org/D29535

llvm-svn: 294383
 2017-02-08 00:02:54 +00:00
Marcos Pividori 7444aae914 [libFuzzer] Remove ? wildcard on tests. 
We can not use the wildcard ? on Windows.

Differential Revision: https://reviews.llvm.org/D29534

llvm-svn: 294382
 2017-02-08 00:02:50 +00:00
Marcos Pividori 8fcd6d8394 [libFuzzer] Update fuzzer-segv to set environment variables. 
Use env to set environment variables, so it works on Linux and Windows.

Differential Revision: https://reviews.llvm.org/D29533

llvm-svn: 294381
 2017-02-08 00:02:45 +00:00
Marcos Pividori 509d4f5aa9 [libFuzzer] Properly configure tests for Windows. 
This configuration is necessary, and is included in all tests suites.
We need to execute: `config.test_format = lit.formats.ShTest(False)`
Otherwise, lit will try to use bash, which generates many problems.

Differential Revision: https://reviews.llvm.org/D29529

llvm-svn: 294380
 2017-02-08 00:02:41 +00:00
Marcos Pividori 4a65bc35c3 [libFuzzer] Simplify dump_coverage test. 
Environment variables are handled differently on Windows. In this case it is not
necessary to use environment variables. So, I simplify the test to work on
Windows.

Differential Revision: https://reviews.llvm.org/D29532

llvm-svn: 294379
 2017-02-08 00:02:36 +00:00
Marcos Pividori 638ede81af [libFuzzer] Update Load test to work on 32 bits. 
We should ensure the size of the variable `a` is 8 bytes. Otherwise, this
generates a stack buffer overflow inside the memcpy call in 32 bits machines.
(We write more bytes than the size of a, when it is 4 bytes)

Differential Revision: https://reviews.llvm.org/D29602

llvm-svn: 294378
 2017-02-08 00:02:32 +00:00
Marcos Pividori 51f907f3a4 [libFuzzer] Update test to consider different exceptions. 
Differential Revision: https://reviews.llvm.org/D29531

llvm-svn: 294377
 2017-02-08 00:02:25 +00:00
Marcos Pividori ba03abebfe [libFuzzer] Disable afl tests on non-posix systems. 
AflDriver is not supported on non posix systems.

Differential Revision: https://reviews.llvm.org/D29422

llvm-svn: 293830
 2017-02-01 22:40:50 +00:00
Marcos Pividori 36464dd6a5 [libFuzzer] Disable equivalence tests on non posix systems. 
We can not run this test until we implement shared memory on Windows.

Differential Revision: https://reviews.llvm.org/D29421

llvm-svn: 293829
 2017-02-01 22:40:45 +00:00
Marcos Pividori b056879700 [libFuzzer] Isolate merge tests that require posix. 
Differential Revision: https://reviews.llvm.org/D29420

llvm-svn: 293828
 2017-02-01 22:40:40 +00:00
Marcos Pividori 9c0244c1eb [libFuzzer] Add features `windows` and `posix` for lit tests. 
Add 2 features: posix and windows.
Sometimes we want some specific tests only for posix and we use:
 REQUIRES: posix
Sometimes we want some specific tests only for windows and we use:
 REQUIRES: windows

Differential Revision: https://reviews.llvm.org/D29418

llvm-svn: 293827
 2017-02-01 22:40:34 +00:00
Marcos Pividori 477d153045 [libFuzzer] Accept different extensions. 
Differential Revision: https://reviews.llvm.org/D29417

llvm-svn: 293826
 2017-02-01 22:40:29 +00:00
Marcos Pividori b340471ff5 [libFuzzer] Fix test because cmd prompt does not expand wildcard. 
Commands should expand the wildcards on Windows, the cmd prompt doesn't.
Because of that sancov was not finding the needed file.
To deal with this, we use ls and xargs from gnu win utils.

Differential Revision: https://reviews.llvm.org/D29374

llvm-svn: 293825
 2017-02-01 22:39:55 +00:00
Kostya Serebryany 5c76e3d034 [libFuzzer] increase the default size for shmem 
llvm-svn: 293722
 2017-02-01 00:07:47 +00:00
Kostya Serebryany 6d58dbb62f [libFuzzer] make shmem more robust in the presence of signals 
llvm-svn: 293339
 2017-01-27 22:41:30 +00:00
Kostya Serebryany 6bdd8fc5b6 [libFuzzer] make sure we use the feedback from std::string operator == 
llvm-svn: 292835
 2017-01-23 22:11:04 +00:00
Kostya Serebryany 3230b24ea1 [libFuzzer] deflake a test 
llvm-svn: 292813
 2017-01-23 18:44:40 +00:00
Marcos Pividori 0f84c7aef6 [libFuzzer] Add missing dependency for tests. 
Dependency on TestBinaries was erroneously removed on r292735.

llvm-svn: 292765
 2017-01-22 21:55:46 +00:00
Marcos Pividori 76c58b4413 [libFuzzer] Specify the CRT considered (MT or MD) for tests on Windows. 
Differential Revision: https://reviews.llvm.org/D28439

llvm-svn: 292749
 2017-01-22 02:28:12 +00:00