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#=========================== begin_copyright_notice ============================
#
# Copyright (C) 2021 Intel Corporation
#
# SPDX-License-Identifier: MIT
#
#============================ end_copyright_notice =============================
# Just register lld as external llvm project.
include_guard(DIRECTORY)
llvm_define_mode_variable(LLD IGC_OPTION__LLD_MODE)
# Reuse LLVM source search module. lld should be located in the same place.
if(NOT DEFAULT_IGC_LLVM_SOURCES_DIR)
include(llvm_source_path)
endif()
if(DEFAULT_IGC_LLVM_SOURCES_DIR)
set(DEFAULT_IGC_lld_SOURCES_DIR ${DEFAULT_IGC_LLVM_SOURCES_DIR}/lld)
endif()
if(IGC_OPTION__LLD_MODE STREQUAL SOURCE_MODE_NAME)
if (NOT DEFINED IGC_OPTION__lld_SOURCES_DIR)
set(IGC_OPTION__lld_SOURCES_DIR "${DEFAULT_IGC_lld_SOURCES_DIR}" CACHE PATH "Path to lld sources")
endif()
endif()
# In Prebuild mode there is nothing to do here for now.
if(IGC_OPTION__LLD_MODE STREQUAL PREBUILDS_MODE_NAME)
message(STATUS "[lld] Will use lld prebuilds")
return()
endif()
# No mode was specified, start searching.
if(NOT IGC_OPTION__LLD_MODE)
message(STATUS "[lld] No mode was specified, searching for lld")
if(EXISTS "${DEFAULT_IGC_lld_SOURCES_DIR}")
set(IGC_OPTION__lld_SOURCES_DIR "${DEFAULT_IGC_lld_SOURCES_DIR}")
else()
return()
endif()
endif()
set(IGC_COPIED_LLD_DIR ${IGC_LLVM_WORKSPACE_SRC}/lld)
message(STATUS "[lld] lld will be built from sources")
message(STATUS "[lld] Copying stock lld sources ${IGC_OPTION__lld_SOURCES_DIR} to ${IGC_COPIED_LLD_DIR}")
if(NOT EXISTS "${IGC_COPIED_LLD_DIR}")
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_directory ${IGC_OPTION__lld_SOURCES_DIR} ${IGC_COPIED_LLD_DIR})
endif()
if(NOT EXISTS "${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o" AND ${IGC_OPTION__LLVM_PREFERRED_VERSION} GREATER_EQUAL "12.0.0")
# Need to copy one header from unwind package for LLD (only for building from sources)
file(MAKE_DIRECTORY ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o)
file(COPY ${DEFAULT_IGC_LLVM_SOURCES_DIR}/libunwind/include/mach-o/compact_unwind_encoding.h
DESTINATION ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o/)
endif()
# Just register lld as external llvm project.
register_llvm_external_project(lld ${IGC_COPIED_LLD_DIR})
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