Bug 1018550 - needless libunwind dependency
needless libunwind dependency
Product: Fedora
Classification: Fedora
Component: weston (Show other bugs)
Unspecified Linux
unspecified Severity unspecified
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Assigned To: Richard Hughes
Fedora Extras Quality Assurance
Depends On: 1018549
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Reported: 2013-10-13 03:41 EDT by Jan Kratochvil
Modified: 2016-07-19 06:28 EDT (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of: 1018549
Last Closed: 2016-07-19 06:28:58 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Jan Kratochvil 2013-10-13 03:41:08 EDT
I have found Fedora weston depends on libunwind.  There is a longterm plan to obsolete libunwind from Fedora by new elfutils unwinder.  But xorg-x11-server does not even need any external (non-glibc) unwinder.

You do only self-backtrace (called local unwinding by libunwind).  glibc
backtrace() can do the same.  Libunwind only adds resolving of address -> symbol name there, IIUC.  dladdr() only resolves .dynsym symbol while elfutils (and libunwind) resolve also .symtab, separate debug info (*-debuginfo.rpm) and minidebuginfo (.gnu_debugdata in the main binary).

address -> symbol name resolving can be done with RH-supported elfutils
package, a simple self-backtrace with symbol resolving is for example:
Comment 1 Jaroslav Reznik 2015-03-03 10:08:10 EST
This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle.
Changing version to '22'.

More information and reason for this action is here:
Comment 2 Fedora End Of Life 2016-07-19 06:28:58 EDT
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
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