[PATCH] D118450: [RuntimeDyld] Handle SPARC

[Rainer Orth via Phabricator via llvm-commits]

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A couple of tests `FAIL` on Solaris/sparcv9 with

  Unsupported CPU type!
  UNREACHABLE executed at /vol/llvm/src/llvm-project/dist/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp:1067!

Fixed by adding SPARC support to `RuntimeDyld`.

Tested on `sparcv9-sun-solaris2.11`.

Authored-By: Stefan Teleman <stefan.teleman at oracle.com>

The patch has been available from 033-solaris-LLVM-JIT.patch <https://github.com/oracle/solaris-userland/blob/master/components/llvm/patches/033-solaris-LLVM-JIT.patch> for quite a while.  I've learned from my contacts in Oracle Solaris Engineering that it had originally been developed for LLVM 3.8.1 by Stefan Teleman while working at Oracle.  They are fine with me submitting it upstream.

I had to make a few changes to that patch:

- Formatting fixes
- Remove unused variables
- Undo the `getFileFormatName` changes in `ELFObjectFile.h` which broke `ELFObjectFileTest.MachineTestForSPARC*`


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D118450

Files:
  llvm/include/llvm/BinaryFormat/ELFRelocs/Sparc.def
  llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
  llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
  llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h

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