# Copyright (c) 2023 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Prevent double invocation.
if (RISCV_TOOLCHAIN_INCLUDED)
    return()
endif()
set(RISCV_TOOLCHAIN_INCLUDED TRUE)

set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_SYSTEM_PROCESSOR riscv)

# User can use -DCMAKE_FIND_ROOT_PATH to specific toolchain path
set(CMAKE_C_COMPILER ${CMAKE_FIND_ROOT_PATH}/bin/riscv64-unknown-linux-gnu-clang)
set(CMAKE_CXX_COMPILER ${CMAKE_FIND_ROOT_PATH}/bin/riscv64-unknown-linux-gnu-clang++)
set(CMAKE_LINKER ${CMAKE_FIND_ROOT_PATH}/bin/riscv64-unknown-linux-gnu-ld)

set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

# Most linux on riscv64 support rv64imafd_zba_zbb extensions
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=rv64imafd_zba_zbb -mabi=lp64d " CACHE INTERNAL "")