OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity
269,525 Commits 32 Branches 0 Tags 2.2 GiB
Commit Graph

747 Commits

Author SHA1 Message Date
Petr Hosek ec20fd7731 [CMake] Add install target for LLVMFuzzer 
This allows including LLVMFuzzer as distribution component.

Differential Revision: https://reviews.llvm.org/D36540

llvm-svn: 310897
 2017-08-14 23:37:31 +00:00
Kostya Serebryany e3cb3c519f [libFuzzer] try to use less RAM while processing the initial corpus 
llvm-svn: 310881
 2017-08-14 20:34:35 +00:00
Kostya Serebryany 47cb4856d4 [libFuzzer] explicitly use -fsanitize-coverage=trace-pc-guard in test/dump_coverage.test; mark print_coverage/dump_coverage as To-be-deprecated 
llvm-svn: 310877
 2017-08-14 19:55:23 +00:00
Kostya Serebryany 0873be2ad0 [libFuzzer] experimental support for Clang's coverage (fprofile-instr-generate), Linux-only 
llvm-svn: 310771
 2017-08-11 23:03:22 +00:00
George Karpenkov d20e8b4edb [libFuzzer] Re-enable coverage.test on Darwin. 
llvm-svn: 310750
 2017-08-11 20:30:52 +00:00
Alexander Potapenko 7235bcdf8f [libFuzzer] Update LibFuzzer w.r.t. the new comparisons instrumentation API 
Added the _sanitizer_cov_trace_const_cmp[1248] callbacks.
For now they are implemented the same way as _sanitizer_cov_trace_cmp[1248].
For more details, please see https://reviews.llvm.org/D36465.

Patch by Victor Chibotaru.

llvm-svn: 310592
 2017-08-10 14:01:45 +00:00
Kostya Serebryany e863796dca [libFuzzer] simplify code, NFC 
llvm-svn: 310326
 2017-08-08 00:17:20 +00:00
Kostya Serebryany 22e5f9a16a [libFuzzer] remove stale code 
llvm-svn: 310325
 2017-08-08 00:14:49 +00:00
Kostya Serebryany 854be98c93 [libFuzzer] simplify the implementation of -print_coverage=1 
llvm-svn: 310324
 2017-08-08 00:12:09 +00:00
George Karpenkov 00e25c5459 Do not instrument libFuzzer itself when built with -DLLVM_USE_SANITIZE_COVERAGE 
Fixes regression from https://reviews.llvm.org/D36295

Differential Revision: https://reviews.llvm.org/D36428

llvm-svn: 310305
 2017-08-07 20:56:11 +00:00
Kostya Serebryany a84a6c1e48 [libFuzzer] use the in-binary pc table (instead of PCs captured at run-time) to implement -exit_on_src_pos 
llvm-svn: 310151
 2017-08-04 23:49:53 +00:00
Kostya Serebryany be7a35769d [libFuzzer] print PCs using the in-binary PC-table instead of relying on PCs captured at run-time 
llvm-svn: 310148
 2017-08-04 23:13:58 +00:00
Kostya Serebryany 64426e3ba8 [libFuzzer] re-enable fuzzer-printcovpcs.test 
llvm-svn: 310126
 2017-08-04 20:47:22 +00:00
Kostya Serebryany 27cba58898 [libFuzzer] make a test more robust 
llvm-svn: 310113
 2017-08-04 20:09:15 +00:00
Kostya Serebryany 1d7a33b8ae [libFuzzer] remove the now redundant 'LLVMFuzzer-' prefix from libFuzzer tests 
llvm-svn: 310110
 2017-08-04 20:05:25 +00:00
Kostya Serebryany 785cec91a4 [libFuzzer] split one test into several 
llvm-svn: 310106
 2017-08-04 20:01:04 +00:00
George Karpenkov b0c2bb572d [libFuzzer tests] Only enable libFuzzer tests if 
-DLIBFUZZER_ENABLE_TESTS=ON is set.

llvm-svn: 310100
 2017-08-04 19:29:16 +00:00
Kostya Serebryany 0c079d06d3 [libFuzzer] make trace-pc.test more reliable 
llvm-svn: 310091
 2017-08-04 18:43:39 +00:00
George Karpenkov 96d6008145 Fixing buildbots: do not register check-fuzzer if clang or asan are not 
present.

llvm-svn: 310077
 2017-08-04 17:43:29 +00:00
George Karpenkov a5de052362 Drop Windows support from libFuzzer tests. 
Differential Revision: https://reviews.llvm.org/D36205

llvm-svn: 310076
 2017-08-04 17:43:28 +00:00
George Karpenkov 8ecdd7be15 Port libFuzzer tests to LIT. Do not require two-stage build for check-fuzzer. 
This revision ports all libFuzzer tests apart from the unittest to LIT.
The advantages of doing so include:

 - Tests being self-contained
 - Much easier debugging of a single test
 - No need for using a two-stage compilation

The unit-test is still compiled using CMake, but it does not need a
freshly built compiler.

NOTE: The previous two-stage bot configuration will NOT work, as in the
second stage build LLVM_USE_SANITIZER is set, which disables ASAN from
being built.
Thus bots will be reconfigured in the next few commits.

Differential Revision: https://reviews.llvm.org/D36295

llvm-svn: 310075
 2017-08-04 17:19:45 +00:00
George Karpenkov 5bd0503680 Disable libFuzzer tests on Windows 
Differential Revision: https://reviews.llvm.org/D36297

llvm-svn: 310009
 2017-08-04 00:26:12 +00:00
George Karpenkov f020c98912 [libFuzzer] Un-reverting change in tests after fixing the failure on Linux. 
Differential Revision: https://reviews.llvm.org/D36242

llvm-svn: 309982
 2017-08-03 20:28:16 +00:00
George Karpenkov 6f046b4dd7 Revert "[libFuzzer tests] Use substring comparison in libFuzzer tests" 
This reverts commit 3592d8049660dcdd07f7c2e797f2de9790f93111.

Breaks the bots, reverting for now.

llvm-svn: 309899
 2017-08-02 23:09:57 +00:00
George Karpenkov 03f9506477 [libFuzzer tests] Use substring comparison in libFuzzer tests 
LIT launches executables with absolute, and not relative, path.
strncmp would try to do exact comparison and fail.

Differential Revision: https://reviews.llvm.org/D36242

llvm-svn: 309889
 2017-08-02 21:38:50 +00:00
Kostya Serebryany 0fc5ee2db0 [libFuzzer] temporarty remove pc-tables and disable test/fuzzer-printcovpcs.test until this can be fixed on Windows 
llvm-svn: 309716
 2017-08-01 18:02:19 +00:00
Kostya Serebryany 6cdb5a61b5 [libFuzzer] implement more correct way of computing feature index for Inline8bitCounters 
llvm-svn: 309647
 2017-08-01 01:16:26 +00:00
Kostya Serebryany 4f2970037a [libFuzzer] enable -fsanitize-coverage=pc-table for all tests 
llvm-svn: 309646
 2017-08-01 00:48:44 +00:00
Kostya Serebryany b2a1eba2f5 [libFuzzer] implement __sanitizer_cov_pcs_init and add pc-table to build flags for one test (for now) 
llvm-svn: 309615
 2017-07-31 20:20:59 +00:00
Kostya Serebryany f14996b962 [libFuzzer] improve support for inline-8bit-counters (make it more correct and faster) 
llvm-svn: 309443
 2017-07-28 22:00:56 +00:00
Kostya Serebryany 6eab1a8ee6 [libFuzzer] don't disable msan for TracePC::CollectFeatures: this started to cause false positives in msan. No tests for libFuzzer+msan yet -- tests will need to wait until we move libFuzzer to compiler-rt 
llvm-svn: 309038
 2017-07-25 22:05:31 +00:00
Kostya Serebryany 6f7befd10f [libFuzzer] make one test faster, fix compiler warnings in tests 
llvm-svn: 308945
 2017-07-25 02:09:46 +00:00
George Karpenkov 9bc64acf90 Revert "Revert "[libFuzzer] Add a dependency on symbolizer from libFuzzer tests"" 
This reverts commit 15425f2bc6eac6249ee957a2a280511306c07547.

Should work now that atos is a default symbolizer on Darwin.

llvm-svn: 308910
 2017-07-24 18:38:14 +00:00
Kostya Serebryany 8cb63ec20b [libFuzzer] reimplement experimental_len_control=1: bump the temporary max_len every time we failed to find new coverage during the last 1000 runs and 1 second. Also fix FileToVector to not load unfinished files 
llvm-svn: 308811
 2017-07-22 00:10:29 +00:00
Matt Morehouse 9e689792b2 Generate error reports when a fuzz target exits. 
Summary:
Implements https://github.com/google/sanitizers/issues/835.

Flush stdout before exiting in test cases.

Since the atexit hook is used for exit reports, pending prints to
stdout can be lost if they aren't flushed before calling exit().

Expect tests to have non-zero exit code if exit() is called.

Reviewers: vitalybuka, kcc

Reviewed By: kcc

Subscribers: eraman, llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D35602

llvm-svn: 308669
 2017-07-20 20:43:39 +00:00
Kostya Serebryany d1b731d57b [libFuzzer] delete stale code 
llvm-svn: 308663
 2017-07-20 20:15:13 +00:00
Kostya Serebryany a763be3d5f [libFuzzer] make sure CheckExitOnSrcPosOrItem is called after the new input is saved to the corpus 
llvm-svn: 308653
 2017-07-20 18:53:25 +00:00
Kostya Serebryany e55828c740 [libFuzzer] prototype implementation of recursion-depth coverage features (commented out; real implementation needs to use inlined instrumentation) 
llvm-svn: 308577
 2017-07-20 01:35:17 +00:00
Kostya Serebryany 15cc3713d3 [libFuzzer] add DeepRecursionTest, inspired by https://guidovranken.wordpress.com/2017/07/08/libfuzzer-gv-new-techniques-for-dramatically-faster-fuzzing/ (Stack-depth-guided fuzzing). libFuzzer does not solve it yet. 
llvm-svn: 308571
 2017-07-20 00:37:08 +00:00
Reid Kleckner 6326639721 Try to deflake fuzzer-oom.test on Windows 
llvm-svn: 308568
 2017-07-20 00:11:39 +00:00
Kostya Serebryany f1bafd9bf6 [libFuzzer] simplify two more tests 
llvm-svn: 308560
 2017-07-19 23:52:54 +00:00
Kostya Serebryany a168af7b5f [libFuzzer] change several tests to not limit the max len: with reduce_inputs=1 they are now fast enough even w/o this 
llvm-svn: 308553
 2017-07-19 23:45:46 +00:00
Reid Kleckner b3283b740f Fix fuzzer-flags.test on Windows 
The optional external function callbacks have to be exported in order
for them to be called. The test was failing because libFuzzer wasn't
calling LLVMFuzzerInitialize.

We can reconsider if this is the best way to mark these optional
callbacks exported later.

llvm-svn: 308548
 2017-07-19 23:22:06 +00:00
Kostya Serebryany 4a27b70ed5 [libFuzzer] enable reduce_inputs=1 by default (seems to be a big win usually) 
llvm-svn: 308541
 2017-07-19 22:10:30 +00:00
Kostya Serebryany d01e956d38 [libFuzzer] when adding a reduced input print REDUCED instead of NEW 
llvm-svn: 308336
 2017-07-18 18:47:36 +00:00
Kostya Serebryany f1b5c64052 [libFuzzer] improve -reduce_inputs=1: now only consider the unique features of very input (seems to work much better) 
llvm-svn: 308253
 2017-07-18 01:36:50 +00:00
Kostya Serebryany 871c157b1a [libFuzzer] disable fuzzer-flags.test on windows to fix the bots 
llvm-svn: 308246
 2017-07-18 01:00:28 +00:00
George Karpenkov 00727af610 Revert "[libFuzzer] Add a dependency on symbolizer from libFuzzer tests" 
This reverts commit 546e006a023cccd0fd32afd442ab992d3515d4b8.

Reverting until I can figure out llvm-symbolizer breakages on mac os.

llvm-svn: 308202
 2017-07-17 18:18:03 +00:00
Kostya Serebryany e9838cdcc5 [libFuzzer] remove stale code 
llvm-svn: 308075
 2017-07-15 01:31:40 +00:00
Justin Bogner c27a70d048 [libFuzzer] Allow non-fuzzer args after -ignore_remaining_args=1 
With this change, libFuzzer will ignore any arguments after a sigil
argument, but it will preserve these arguments at the end of the
command line when launching subprocesses. Using this, its possible to
handle positional and single-dash arguments to the program under test
by discarding everything up to -ignore_remaining_args=1 in
LLVMFuzzerInitialize.

llvm-svn: 308069
 2017-07-14 23:33:04 +00:00