Red Hat Bugzilla – Bug 1018550
needless libunwind dependency
Last modified: 2016-07-19 06:28:58 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:
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:
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no longer maintained, which means that it will not receive any further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
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
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