Bug 706040

Summary: geninfo: ERROR: cannot read <built-in>.gcov!
Product: [Fedora] Fedora Reporter: Mark Wielaard <mjw>
Component: lcovAssignee: Daniel Berrangé <berrange>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: berrange, kdudka, mpolacek, roland
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: lcov-1.9-2.fc17 Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2012-03-24 00:35:59 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
geninfo.patch replace 2 argument open with 3 argument open none

Description Mark Wielaard 2011-05-19 09:35:44 UTC 
Created attachment 499788 [details]
geninfo.patch replace 2 argument open with 3 argument open

Description of problem:

lcov cannot read "special" file names that start with '<' or '>'
since it is using the two argument open function. It should use
the three argument open function to provide the mode itself instead
of deriving it from the filename.
http://perldoc.perl.org/perlfaq5.html#How-can-I-open-a-file-with-a-leading-%22%3E%22-or-trailing-blanks?

Version-Release number of selected component (if applicable):

lcov.noarch 0:1.7-1.fc12

How reproducible:

Always

Steps to Reproduce:
1. git clone git://git.fedorahosted.org/git/elfutils
2. ./configure --enable-gcov
3. make -j8 && make check
4. lcov --directory . --capture --output-file lcov.info
  
Actual results:

[...]
Processing ./tests/test-flag-nobits.gcda
<built-in>:cannot open source file
geninfo: ERROR: cannot read <built-in>.gcov!

Expected results:

[...]
Writing directory view page.
Overall coverage rate:
  lines......: 56.0% (13421 of 23947 lines)
  functions..: 70.1% (750 of 1070 functions)

Additional info:

Patch with a fix for geninfo attached.
Comment 1 Marek Polacek 2011-05-19 10:03:33 UTC 
I've found that this is fixed in the lcov upstream CVS, see http://ltp.cvs.sourceforge.net/viewvc/ltp/utils/analysis/lcov/bin/geninfo?revision=1.91&view=markup

Or, here's the patch similar to Mark's: http://ltp.cvs.sourceforge.net/viewvc/ltp/utils/analysis/lcov/bin/geninfo?r1=1.90&r2=1.91
Comment 2 Roland McGrath 2011-05-23 02:15:24 UTC 
Do either of you have any interest in co-maintaining (or taking over) lcov?
I haven't used it in quite a while, and failed to notice the upstream releases.
It should get updated to the latest upstream release.
Comment 3 Daniel Berrangé 2012-03-12 11:22:33 UTC 
Fedora 14 is EOL, but this still exists in F16, so changing version
Comment 4 Fedora Update System 2012-03-12 11:29:21 UTC 
lcov-1.9-2.fc17 has been submitted as an update for Fedora 17.
https://admin.fedoraproject.org/updates/lcov-1.9-2.fc17
Comment 5 Fedora Update System 2012-03-12 11:38:10 UTC 
lcov-1.9-2.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/lcov-1.9-2.fc16
Comment 6 Fedora Update System 2012-03-12 19:08:07 UTC 
Package lcov-1.9-2.fc17:
* should fix your issue,
* was pushed to the Fedora 17 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing lcov-1.9-2.fc17'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-3611/lcov-1.9-2.fc17
then log in and leave karma (feedback).
Comment 7 Fedora Update System 2012-03-24 00:35:59 UTC 
lcov-1.9-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2012-04-12 03:25:38 UTC 
lcov-1.9-2.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.