Commit Graph

7 Commits

Author SHA1 Message Date
Kostya Serebryany 0ccf06f467 [libFuzzer] extend the messages printed by afl_driver
llvm-svn: 276052
2016-07-19 23:18:28 +00:00
Mike Aizatsky 8ba86a5a48 [libFuzzer] Let user specify extra stats file.
Summary: If AFL_DRIVER_EXTRA_STATS_FILENAME is set and valid, write to it peak_rss_mb and slowest_unit_time_sec. These are both stats that libFuzzer can print but afl cannot.

Reviewers: kcc, aizatsky, metzman

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D21742

llvm-svn: 274273
2016-06-30 20:43:06 +00:00
Vitaly Buka d01720d46d Enable libFuzzer's afl_driver to append stderr to a file.
Summary:
[libFuzzer] Enable afl_driver to append stderr to a user specified file.

Append stderr of afl_driver to the file specified by the environmental variable
AFL_DRIVER_STDERR_DUPLICATE_FILENAME if it is set. This lets users see outputs
on crashes without rerunning crashing test cases (which won't work for crashes
that are difficult to reproduce). Before this patch, stderr would only be sent to afl-fuzz
and users would have no way of seeing it.

Reviewers: llvm-commits, aizatsky, kcc, vitalybuka

Subscribers: vitalybuka

Differential Revision: http://reviews.llvm.org/D21194

llvm-svn: 272858
2016-06-16 00:14:42 +00:00
Vitaly Buka dca553d021 Revert "Enable libFuzzer's afl_driver to append stderr to a file."
Crashes with AddressSanitizer: SEGV on unknown address
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fuzzer/builds/9924/steps/annotate/logs/stdio

This reverts commit r272706.

llvm-svn: 272726
2016-06-14 22:09:00 +00:00
Vitaly Buka 4b73cc88bf Enable libFuzzer's afl_driver to append stderr to a file.
Summary:
[libFuzzer] Enable afl_driver to append stderr to a user specified file.

Append stderr of afl_driver to the file specified by the environmental variable
AFL_DRIVER_STDERR_DUPLICATE_FILENAME if it is set. This lets users see outputs
on crashes without rerunning crashing test cases (which won't work for crashes
that are difficult to reproduce). Before this patch, stderr would only be sent to afl-fuzz
and users would have no way of seeing it.

Reviewers: llvm-commits, aizatsky, kcc, vitalybuka

Subscribers: vitalybuka

Differential Revision: http://reviews.llvm.org/D21194

llvm-svn: 272706
2016-06-14 20:42:05 +00:00
Kostya Serebryany c8bc8821cb [libFuzzer] add a license header to afl/afl_driver.cpp
llvm-svn: 270598
2016-05-24 19:05:25 +00:00
Kostya Serebryany 781e8da888 [libFuzzer] add a driver file to use AFL on LLVMFuzzerTestOneInput
llvm-svn: 269141
2016-05-10 23:46:50 +00:00