cmake/toolchains/arm64-gcc.cmake

# Copyright (c) 2021-2022 Amlogic, Inc. All rights reserved.

# SPDX-License-Identifier: MIT

include("${CMAKE_CURRENT_LIST_DIR}/find_compiler.cmake")

set(CMAKE_SYSTEM_NAME Generic)

# Find GCC for ARM.
aml_find_compiler(COMPILER_CC aarch64-none-elf-gcc)
aml_find_compiler(COMPILER_CXX aarch64-none-elf-g++)
set(COMPILER_ASM "${COMPILER_CC}" CACHE INTERNAL "")
aml_find_compiler(COMPILER_OBJCOPY aarch64-none-elf-objcopy)
aml_find_compiler(COMPILER_OBJDUMP aarch64-none-elf-objdump)

# Specify the cross compiler. 
set(CMAKE_C_COMPILER ${COMPILER_CC} CACHE FILEPATH "C compiler")
set(CMAKE_CXX_COMPILER ${COMPILER_CXX} CACHE FILEPATH "C++ compiler")
set(CMAKE_ASM_COMPILER ${COMPILER_ASM} CACHE FILEPATH "ASM compiler")
#set(CMAKE_C_LINK_EXECUTABLE ${COMPILER_LD} CACHE FILEPATH "LD linker")
set(CMAKE_OBJCOPY_COMPILER ${COMPILER_OBJCOPY} CACHE FILEPATH "objcopy compiler")
set(CMAKE_OBJDUMP_COMPILER ${COMPILER_OBJDUMP} CACHE FILEPATH "objdump compiler")
# Disable compiler checks.
set(CMAKE_C_COMPILER_FORCED TRUE)
set(CMAKE_CXX_COMPILER_FORCED TRUE)

# Add target system root to cmake find path.
get_filename_component(COMPILER_DIR "${COMPILER_CC}" DIRECTORY)
get_filename_component(CMAKE_FIND_ROOT_PATH "${COMPILER_DIR}" DIRECTORY)

# Look for includes and libraries only in the target system prefix.
#set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
#set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)

# Helper variables to abstracts some common compiler flags.
set(COMPILER_NO_WARNINGS "-w" CACHE INTERNAL "")