RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-21 12:02:58 +02:00
Code Issues Projects Releases Wiki Activity
121,624 Commits 4 Branches 5 Tags 704 MiB
3f6dcea99f
Commit Graph

117 Commits

Author SHA1 Message Date
Kostya Serebryany
6c4e275248 [libFuzzer] perform fewer crossover operations compared to plain mutations 
llvm-svn: 247364
 2015-09-11 00:20:58 +00:00
Kostya Serebryany
19cfb70c6a [libFuzzer] refactor the code to allow building libFuzzer on platforms that don't have dfsan and don't support weak functions 
llvm-svn: 247321
 2015-09-10 18:48:38 +00:00
Kostya Serebryany
0001c18d8c [libFuzzer] add two more variants of FuzzerDriver for convenience 
llvm-svn: 247300
 2015-09-10 16:57:57 +00:00
Ivan Krasin
cc79d453f1 [libFuzzer]Add a test for defeating a hash sum. 
Summary:
Add a test for a data followed by 4-byte hash value.
I use a slightly modified Jenkins hash function,
as described in https://en.wikipedia.org/wiki/Jenkins_hash_function

The modification is to ensure that hash(zeros) != 0.

Reviewers: kcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D12648

llvm-svn: 247076
 2015-09-08 21:22:52 +00:00
Kostya Serebryany
a2e2e93ba1 [libFuzzer] remove a piece of stale code 
llvm-svn: 247067
 2015-09-08 20:40:10 +00:00
Kostya Serebryany
04cc0059e2 [libFuzzer] be more robust when dealing with files on disk (e.g. don't crash if a file was there but disappeared) 
llvm-svn: 247066
 2015-09-08 20:36:33 +00:00
Kostya Serebryany
2d2cfbe976 [libFuzzer] better documentatio for -save_minimized_corpus=1 
llvm-svn: 247033
 2015-09-08 17:43:51 +00:00
Kostya Serebryany
28b0d0ab37 [libFuzzer] remove -iterations as redundant (there is also -num_runs) 
llvm-svn: 247030
 2015-09-08 17:30:35 +00:00
Kostya Serebryany
a575372f59 [libFuzzer] add one more mutator: Mutate_ChangeASCIIInteger 
llvm-svn: 247027
 2015-09-08 17:19:31 +00:00
Kostya Serebryany
22e4458e65 [libFuzzer] more accurate logic for traces, 80-char fix 
llvm-svn: 246888
 2015-09-04 22:32:25 +00:00
Kostya Serebryany
2c51ca12e7 [libFuzzer] when a single mutation fails try a few more times with other mutations before returning un-mutated data 
llvm-svn: 246828
 2015-09-04 00:40:29 +00:00
Kostya Serebryany
28a699d9b8 [libFuzzer] actually make the dictionaries work (+docs) 
llvm-svn: 246825
 2015-09-04 00:12:11 +00:00
Kostya Serebryany
3eaa9123bf [libFuzzer] refactor the mutation functions so that they are now methods of a class. NFC 
llvm-svn: 246808
 2015-09-03 21:24:19 +00:00
Kostya Serebryany
3b60fc1204 [libFuzzer] adding a parser for AFL-style dictionaries + tests. 
llvm-svn: 246800
 2015-09-03 20:23:46 +00:00
Kostya Serebryany
d4b7d4667f [libFuzzer] deprecate the -tokens flag. This was a bad idea because the corpus with this flag contains encrypted inputs, not the real inputs, which complicates interoperation with other fuzzers. Instead we'll need to implement AFL dictionary support 
llvm-svn: 246734
 2015-09-02 23:27:39 +00:00
Kostya Serebryany
9c0479fa99 [libFuzzer] honour -only_ascii=1 when reading the initial corpus. Also, remove ugly #ifdef 
llvm-svn: 246689
 2015-09-02 19:08:08 +00:00
Kostya Serebryany
0e83baec1a [libFuzzer] fix minor inefficiency, PR24584 
llvm-svn: 246087
 2015-08-26 21:55:19 +00:00
Lenny Maiorani
1850ddfeb6 Fix missing space in libfuzzer's help text. 
llvm-svn: 244800
 2015-08-12 20:00:10 +00:00
Kostya Serebryany
a9d3e6b2dc [libFuzzer] add two flags, -tbm_depth and -tbm_width to control how the trace-based-mutations are applied 
llvm-svn: 244712
 2015-08-12 01:55:37 +00:00
Kostya Serebryany
2bdb9ad059 [libFuzzer] add colons to the stats output to avoid confusion 
llvm-svn: 244708
 2015-08-12 01:04:27 +00:00
Kostya Serebryany
5a4f36556e [libFuzzer] use raw C IO to reduce the risk of a deadlock in a signal handler. 
llvm-svn: 244707
 2015-08-12 00:55:09 +00:00
Nick Lewycky
1bff8578d4 Fix unused variable 'X' in release builds. 
llvm-svn: 244571
 2015-08-11 05:57:10 +00:00
Kostya Serebryany
1c2b96fda9 [libFuzzer] add -only_ascii flag 
llvm-svn: 244559
 2015-08-11 01:44:42 +00:00
Yaron Keren
b598ba7c7c Add missing include guard to FuzzerInternal.h, NFC. 
llvm-svn: 244457
 2015-08-10 16:37:40 +00:00
Kostya Serebryany
90b784ccc2 [libFuzzer] move the mutators to public interface so that custom mutators may reuse these functions directly 
llvm-svn: 244250
 2015-08-06 19:19:55 +00:00
Kostya Serebryany
acf2228ee8 [libFuzzer] add one more mutation strategy: byte shuffling 
llvm-svn: 244188
 2015-08-06 01:29:13 +00:00
Kostya Serebryany
c721977710 [libFuzzer] avoid build warnings in non-assert build (useful warning in this case) 
llvm-svn: 244177
 2015-08-05 23:44:42 +00:00
Kostya Serebryany
4338e69a99 [libFuzzer] in dfsan mode, set labels every time we start recording traces as opposed to doing it at process startup. This ensures that the labels are fresh. 
llvm-svn: 244165
 2015-08-05 23:02:57 +00:00
Kostya Serebryany
80051e17c0 [libFuzzer] add option -report_slow_units=Nsec to control when slow units are printed 
llvm-svn: 244152
 2015-08-05 21:43:48 +00:00
Kostya Serebryany
5be4cb583e [libFuzzer] add a missing test file 
llvm-svn: 244151
 2015-08-05 21:32:13 +00:00
Kostya Serebryany
897a5553b1 [libFuzzer] use data-flow feedback from strcmp 
llvm-svn: 244084
 2015-08-05 18:23:01 +00:00
Kostya Serebryany
7ee2b779f7 [libFuzzer] more refactoring of the Mutator and adding tests to it 
llvm-svn: 243818
 2015-08-01 02:23:06 +00:00
Kostya Serebryany
82464edd32 [libFuzzer] start refactoring the Mutator and adding tests to it 
llvm-svn: 243817
 2015-08-01 01:42:51 +00:00
Kostya Serebryany
7a9f5ff70b [libFuzzer] limit the size of the inputs printed to stderr 
llvm-svn: 243795
 2015-07-31 22:07:17 +00:00
Kostya Serebryany
a9e61b09d8 [libFuzzer] make sure that 2-byte arguments of switch() are handled properly 
llvm-svn: 243781
 2015-07-31 20:58:55 +00:00
Kostya Serebryany
ccad0c6979 [libFuzzer] record traces from the switch statements only when told to do so 
llvm-svn: 243768
 2015-07-31 18:09:08 +00:00
Kostya Serebryany
fead0c3ca4 [libFuzzer] support switch interception in dfsan mode 
llvm-svn: 243760
 2015-07-31 17:05:05 +00:00
Kostya Serebryany
71a4e8ccbf [libFuzzer] trace switch statements and apply mutations based on the expected case values 
llvm-svn: 243726
 2015-07-31 01:33:06 +00:00
Kostya Serebryany
e76cb85ac7 [libFuzzer] fix the strncmp interceptor -- it should respect short strings. 
llvm-svn: 243691
 2015-07-30 21:22:22 +00:00
Kostya Serebryany
433c6e8b4b [libFuzzer] implement strncmp hook for data-flow-guided fuzzing (w/ and w/o dfsan), add a test 
llvm-svn: 243611
 2015-07-30 02:33:45 +00:00
Kostya Serebryany
d6ac2f5889 [libFuzzer] implement memcmp hook for data-flow-guided fuzzing (w/o dfsan), extend the memcmp fuzzer test 
llvm-svn: 243603
 2015-07-30 01:34:58 +00:00
Kostya Serebryany
fc26c8ec1c [libFuzzer] ensure that the dfsan tracing hooks actually run (using -verbosity=3 in tests) 
llvm-svn: 243365
 2015-07-28 01:25:00 +00:00
Kostya Serebryany
afb5a6f493 [libFuzzer] when using cmp traces, first check that the CMP is evaluated to one value much more frequently than to the other value (heuristic) 
llvm-svn: 243363
 2015-07-28 00:59:53 +00:00
Kostya Serebryany
02e05d0662 [libFuzzer] allow users to supply their own implementation of rand 
llvm-svn: 243078
 2015-07-24 01:06:40 +00:00
Kostya Serebryany
35d1f9b1f6 [libFuzzer] dump long running units to disk 
llvm-svn: 243031
 2015-07-23 18:37:22 +00:00
Alexey Samsonov
84ab5e6b2a [Fuzzer] Rely on $PATH expansion instead of hardcoding paths in tests. NFC. 
llvm-svn: 242851
 2015-07-21 22:51:55 +00:00
Alexey Samsonov
4a6c6512bc [Fuzzer] Clearly separate regular and DFSan tests. NFC. 
llvm-svn: 242850
 2015-07-21 22:51:49 +00:00
Kostya Serebryany
7c2874be12 [libFuzzer] require the files and directories passed to the fuzzer to exist 
llvm-svn: 242596
 2015-07-18 00:03:37 +00:00
Kostya Serebryany
444683ece7 [lib/Fuzzer] make assertions more informative and update comments for the user-supplied mutator 
llvm-svn: 238658
 2015-05-30 17:33:13 +00:00
Kostya Serebryany
74916b0deb [lib/Fuzzer] relax an assertion 
llvm-svn: 238608
 2015-05-29 20:31:17 +00:00