afl-cov

[mark....@gmail.com]

I am using the link https://github.com/mrash/afl-cov for finding out coverage 

and i use the following command 

afl-cov -d ./results/ -c `pwd`  --live --coverage-cmd \ "cat AFL_FILE | LD_LIBRARY_PATH=./lib/.libs ./bin/.libs/somebin -a-b-c"\ --enable-branch-coverage --coverage-include-lines --lcov-web-all  --overwrite

but i get the following reply and the file mentioned is empty. any suggestions what might be wrong

*** Imported 6 new test cases from: ./results//queue

 

    [+] AFL test case: id:000000,orig:test.txt (0 / 6), cycle: 0

lcov: ERROR: no valid records found in tracefile ./results//cov/lcov/id:000000,orig:test.txt.lcov_info

Traceback (most recent call last):

  File "/usr/bin/afl-cov", line 724, in <module>

    sys.exit(main())

  File "/usr/bin/afl-cov", line 72, in main

    return not process_afl_test_cases(gpaths, cargs)

  File "/usr/bin/afl-cov", line 140, in process_afl_test_cases

    gen_coverage(gpaths, cov_paths, f, cargs)

  File "/usr/bin/afl-cov", line 447, in gen_coverage

    + cov_paths['lcov_info_final'], cargs, WANT_OUTPUT)

  File "/usr/bin/afl-cov", line 536, in run_cmd

    out = subprocess.check_output(cmd.split())

  File "/usr/lib/python2.7/dist-packages/subprocess32.py", line 635, in check_output

    raise CalledProcessError(retcode, process.args, output=output)

subprocess32.CalledProcessError: Command '['lcov', '--rc', 'lcov_branch_coverage=1', '--no-checksum', '-r', './results//cov/lcov/id:000000,orig:test.txt.lcov_info', '/usr/include/*', '--output-file', './results//cov/lcov/id:000000,orig:test.txt.lcov_info_final']' returned non-zero exit status 255

 

[Michael Rash]

 Judging from the line numbers in the trace above, I'd guess that you are using an older version of afl-cov. The latest version is 0.6. Further, given the error you are seeing, I would also guess that your targeted binary has not been compiled with code coverage support. Note that afl-cov 0.6 automatically tries to verify coverage support before proceeding, so I would recommend that you upgrade. If afl-cov 0.6 throws an error like 'Binary somebin is not compiled with code coverage support', then you will need to recompile your binary with flags like '-fprofile-arcs -ftest-coverage'.

Thanks,

--Mike

[IOhannes m zmölnig]

On 11/21/2017 01:35 AM, Michael Rash wrote:
> The latest version is 0.6.

speaking of which: would it be possible to do a new (point?) release?
i really like the new options added in the last year but would like to
stick to "stable" versions (as shipped by Debian).

fgamrds
IOhannes

[Michael Rash]

Certainly. afl-cov 0.6.1 is available now:

https://github.com/mrash/afl-cov/releases/tag/0.6.1

Thanks,

--Mike

 

fgamrds
IOhannes

[Daniel Stender]

... packaged for Debian today (currently in Sid).

Quick rebuild against stretch: http://www.danielstender.com/uploads/afl-cov_0.6.1-1~stretch_all.deb

Official package for stretch-backports is coming up shortly.

Cheers,
Daniel Stender

On 11/28/2017 03:53 AM, Michael Rash wrote:

>
>
> On Tue, Nov 21, 2017 at 12:43 PM, IOhannes m zmölnig <zmoe...@umlaeute.mur.at <mailto:zmoe...@umlaeute.mur.at>> wrote:
>
> On 11/21/2017 01:35 AM, Michael Rash wrote:
> > The latest version is 0.6.
>
> speaking of which: would it be possible to do a new (point?) release?
> i really like the new options added in the last year but would like to
> stick to "stable" versions (as shipped by Debian).
>
>
> Certainly. afl-cov 0.6.1 is available now:
>
> https://github.com/mrash/afl-cov/releases/tag/0.6.1
>
> Thanks,
>
> --Mike

--
4096R/DF5182C8 (ste...@debian.org)
http://www.danielstender.com/