Bug 688532
| Summary: | eu-addr2line sometimes does not work | ||||||||
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| Product: | [Fedora] Fedora | Reporter: | Jan Kratochvil <jan.kratochvil> | ||||||
| Component: | elfutils | Assignee: | Roland McGrath <roland> | ||||||
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | medium | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 15 | CC: | fche, mcepl, mcepl, mjw, pmachata, roland | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2011-03-18 11:11:21 UTC | Type: | --- | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
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Since that eu-unstrip output file apparently reproduces the problem, it would be easiest if you could just attach that one binary to this bug. Created attachment 486076 [details]
xz of /tmp/x (=after eu-unstrip)
This file has no .debug_aranges section. libdw relies on that section. Did the compiler fail to emit one? Or did something else remove it? Tracked now upstream as a gcc-4.6 regression, thanks for the analysis. |
Created attachment 485978 [details] The files from: xorg-x11-server-Xorg-1.10.0-3.fc15.x86_64 + xorg-x11-server-debuginfo-1.10.0-3.fc15.x86_64 Description of problem: addr2line or gdb works in such case. Version-Release number of selected component (if applicable): elfutils-0.152-1.fc15.x86_64 binutils-2.21.51.0.6-1.fc15.x86_64 gdb-7.2.50.20110305-28.fc15.x86_64 xorg-x11-server-Xorg-1.10.0-3.fc15.x86_64 xorg-x11-server-debuginfo-1.10.0-3.fc15.x86_64 How reproducible: Always. Steps to Reproduce: $ eu-addr2line -e /usr/bin/Xorg 0x4a105f Actual results: ??:0 Expected results: /usr/src/debug/xorg-server-1.10.0/os/backtrace.c:46 Additional info: $ gdb -q /usr/bin/Xorg -ex 'info line *0x4a105f' -ex q Line 46 of "backtrace.c" starts at address 0x4a105f <xorg_backtrace+47> and ends at 0x4a1067 <xorg_backtrace+55>. $ eu-addr2line -e /usr/bin/Xorg 0x4a105f ??:0 $ addr2line -e /usr/bin/Xorg 0x4a105f ??:0 $ eu-addr2line -e /usr/lib/debug/usr/bin/Xorg.debug 0x4a105f ??:0 $ addr2line -e /usr/lib/debug/usr/bin/Xorg.debug 0x4a105f /usr/src/debug/xorg-server-1.10.0/os/backtrace.c:46 $ prelink -u -o /tmp/y /usr/bin/Xorg $ eu-unstrip -o /tmp/x /tmp/y /usr/lib/debug/usr/bin/Xorg.debug $ eu-addr2line -e /tmp/x 0x4a105f ??:0 $ addr2line -e /tmp/x 0x4a105f /usr/src/debug/xorg-server-1.10.0/os/backtrace.c:46