[PATCH] libdw: add thread-safety to dwarf_getabbrev()

Florian Weimer fw@deneb.enyo.de
Sat Oct 26 16:14:00 GMT 2019

* Mark Wielaard:

> I'll see if I can create a case where that is a problem. Then we can
> see how to adjust things to use less pthread_keys. Is there a different
> pattern we can use?

It's unclear what purpose thread-local storage serves in this context.
You already have a Dwarf *.  I would consider adding some sort of
clone function which creates a shallow Dwarf * with its own embedded
allocator or something like that.  This assumes that memory allocation
is actually a performance problem, otherwise you could let malloc
handle the details.

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