labath added a comment.

The VDSO is a pretty standard shared library in most aspects -- it contains the 
implementations of a couple of functions whose implementation can depend on the 
specific hardware revision (the fastest way to make a syscall, the fastest way 
to obtain system time, etc.). The main special thing about it is that it does 
not exist as a file on the disk. In case of a live process, we load it by 
directly reading the contents out of inferior memory. I am not sure what we 
should do in the core file case...


https://reviews.llvm.org/D30454



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