Bug 965255

Summary: binutils can't cope with dwz's output
Product: [Fedora] Fedora Reporter: Adam Jackson <ajax>
Component: binutilsAssignee: Nick Clifton <nickc>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: bbaude, dan, jakub, mjw, nickc
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: binutils-2.23.51.0.1-10.fc18 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-06-18 16:46:36 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
http://kojipkgs.fedoraproject.org/packages/pango/1.34.1/1.fc19/x86_64/pango-debuginfo-1.34.1-1.fc19.x86_64.rpm none

Description Adam Jackson 2013-05-20 19:20:28 UTC 
Created attachment 750696 [details]
http://kojipkgs.fedoraproject.org/packages/pango/1.34.1/1.fc19/x86_64/pango-debuginfo-1.34.1-1.fc19.x86_64.rpm

Description of problem:

Unpack the pango-debuginfo in the attachment, or equivalently:

http://kojipkgs.fedoraproject.org/packages/pango/1.34.1/1.fc19/x86_64/pango-debuginfo-1.34.1-1.fc19.x86_64.rpm

Then run 'objdump -Dl' over the debuginfo file for the DSO, and be sad:

% objdump -Dl pango-debuginfo-1.34.1-1.fc19.x86_64/usr/lib/debug/usr/lib64/libpango-1.0.so.0.3400.1.debug |& grep BFD | head -5
BFD: Dwarf Error: Invalid or unhandled FORM value: 7969.
BFD: Dwarf Error: found dwarf version '0', this reader only handles version 2, 3 and 4 information.
BFD: Dwarf Error: found dwarf version '0', this reader only handles version 2, 3 and 4 information.
BFD: Dwarf Error: found dwarf version '56191', this reader only handles version 2, 3 and 4 information.
BFD: Dwarf Error: found dwarf version '6912', this reader only handles version 2, 3 and 4 information.

Locally rebuilding pango with %global _find_debuginfo_dwz_opts %{nil} produces a .debug file without this problem.

I'm not entirely sure what the rpmbuild-generated dwz command line comes out to.  My attempts to divine it from reading find-debuginfo.sh seem to result in output files that all work correctly.
Comment 1 Jakub Jelinek 2013-05-20 19:34:24 UTC 
Looks like objdump bug.  readelf -wi handles this just fine.  FORM 7969 is valid (DW_FORM_GNU_strp_alt).
Comment 2 Nick Clifton 2013-05-29 15:49:13 UTC 
I have checked in a patch (to rawhide) to add support in the BFD library for handling the alternate debuginfo files produced by the DWZ program.  Please try out: binutils-2.23.88.0.1-5.fc20 and let me know if the problem still exists.

Cheers
  Nick
Comment 3 Adam Jackson 2013-06-11 13:55:27 UTC 
% objdump -Dl ~/dwz/pango-debuginfo-1.34.1-1.fc19.x86_64/usr/lib/debug/usr/lib64/libpango-1.0.so.0.3400.1.debug |& grep -c BFD   
0
% rpm -q binutils
binutils-2.23.88.0.1-6.fc20.x86_64

Looks good, thanks!
Comment 4 Adam Jackson 2013-06-18 16:46:36 UTC 
Fixed in F20 is good enough for me, especially since the elfutils tools don't seem to have this issue.
Comment 5 Dan Horák 2013-06-20 15:28:25 UTC 
Nick, can you backport the fix also to f19 (and maybe also f18) and release an update thru bodhi?
Comment 6 Fedora Update System 2013-06-21 10:00:27 UTC 
binutils-2.23.52.0.1-9.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/binutils-2.23.52.0.1-9.fc19
Comment 7 Fedora Update System 2013-06-21 10:05:04 UTC 
binutils-2.23.51.0.1-10.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/binutils-2.23.51.0.1-10.fc18
Comment 8 Dan Horák 2013-06-21 11:50:59 UTC 
thanks Nick, Dan
Comment 9 Fedora Update System 2013-06-29 18:15:55 UTC 
binutils-2.23.52.0.1-9.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2013-08-15 02:31:41 UTC 
binutils-2.23.51.0.1-10.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.