The '__' prefix should only be used for the parts of the ORC runtime that
implement compiler / loader runtime details (e.g. ORC-RT's __tlv_get_addr
implementations).
This patch only fixes the public API. Future changes will fix internal names.
We want to move functionality from the LLVM ORCTargetProcess library into the
ORC runtime, and this will mean implementing remote-executor testing tools
(like llvm-jitlink-executor and lli-child-target) in the ORC runtime.
This patch refactors the ORC runtime build system to introduce an
add_orc_tool function that can be used to add new test tools. The code is
modeled on existing functions for adding unit tests.
A placeholder orc-rt-executor tool and test are added to verify that the
config changes behave as expected.
Reviewed By: phosek
Differential Revision: https://reviews.llvm.org/D133084
