Chris Bieneman a34680a33e Break out OrcError and RPC
Summary:
When createing an ORC remote JIT target the current library split forces the target process to link large portions of LLVM (Core, Execution Engine, JITLink, Object, MC, Passes, RuntimeDyld, Support, Target, and TransformUtils). This occurs because the ORC RPC interfaces rely on the static globals the ORC Error types require, which starts a cycle of pulling in more and more.

This patch breaks the ORC RPC Error implementations out into an "OrcError" library which only depends on LLVM Support. It also pulls the ORC RPC headers into their own subdirectory.

With this patch code can include the Orc/RPC/*.h headers and will only incur link dependencies on LLVMOrcError and LLVMSupport.

Reviewers: lhames

Reviewed By: lhames

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68732
2019-10-29 17:31:28 -07:00

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;===- ./lib/ExecutionEngine/Orc/LLVMBuild.txt ----------------*- Conf -*--===;
;
; Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
; See https://llvm.org/LICENSE.txt for license information.
; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
;
;===------------------------------------------------------------------------===;
;
; This is an LLVMBuild description file for the components in this subdirectory.
;
; For more information on the LLVMBuild system, please see:
;
; http://llvm.org/docs/LLVMBuild.html
;
;===------------------------------------------------------------------------===;
[component_0]
type = Library
name = OrcJIT
parent = ExecutionEngine
required_libraries = Core ExecutionEngine JITLink Object OrcError MC Passes
RuntimeDyld Support Target TransformUtils