1# 2# Copyright (c) 2017, Alliance for Open Media. All rights reserved. 3# 4# This source code is subject to the terms of the BSD 2 Clause License and the 5# Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was 6# not distributed with this source code in the LICENSE file, you can obtain it 7# at www.aomedia.org/license/software. If the Alliance for Open Media Patent 8# License 1.0 was not distributed with this source code in the PATENTS file, you 9# can obtain it at www.aomedia.org/license/patent. 10# 11if(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_) 12 return() 13endif() # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ 14set(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ 1) 15 16set(CMAKE_SYSTEM_NAME "Linux") 17 18if("${CROSS}" STREQUAL "") 19 20 # Default the cross compiler prefix to one used by Debian and other package 21 # management systems. 22 set(CROSS aarch64-linux-gnu-) 23endif() 24 25if(NOT CMAKE_C_COMPILER) 26 set(CMAKE_C_COMPILER ${CROSS}gcc) 27endif() 28if(NOT CMAKE_CXX_COMPILER) 29 set(CMAKE_CXX_COMPILER ${CROSS}g++) 30endif() 31if(NOT CMAKE_ASM_COMPILER) 32 set(CMAKE_ASM_COMPILER ${CROSS}as) 33endif() 34set(CMAKE_C_FLAGS_INIT "-march=armv8-a") 35set(CMAKE_CXX_FLAGS_INIT "-march=armv8-a") 36set(AOM_AS_FLAGS "-march=armv8-a") 37set(CMAKE_SYSTEM_PROCESSOR "arm64") 38 39# No intrinsics flag required for arm64-linux-gcc. 40set(AOM_NEON_INTRIN_FLAG "") 41