| # |
| # Copyright (c) 2017, Alliance for Open Media. All rights reserved |
| # |
| # This source code is subject to the terms of the BSD 2 Clause License and the |
| # Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was |
| # not distributed with this source code in the LICENSE file, you can obtain it |
| # at www.aomedia.org/license/software. If the Alliance for Open Media Patent |
| # License 1.0 was not distributed with this source code in the PATENTS file, you |
| # can obtain it at www.aomedia.org/license/patent. |
| # |
| if(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_) |
| return() |
| endif() # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ |
| set(AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_ 1) |
| |
| set(CMAKE_SYSTEM_NAME "Linux") |
| |
| if("${CROSS}" STREQUAL "") |
| |
| # Default the cross compiler prefix to one used by Debian and other package |
| # management systems. |
| set(CROSS aarch64-linux-gnu-) |
| endif() |
| |
| if(NOT CMAKE_C_COMPILER) |
| set(CMAKE_C_COMPILER ${CROSS}gcc) |
| endif() |
| if(NOT CMAKE_CXX_COMPILER) |
| set(CMAKE_CXX_COMPILER ${CROSS}g++) |
| endif() |
| if(NOT CMAKE_ASM_COMPILER) |
| set(CMAKE_ASM_COMPILER ${CROSS}as) |
| endif() |
| set(CMAKE_C_FLAGS_INIT "-march=armv8-a") |
| set(CMAKE_CXX_FLAGS_INIT "-march=armv8-a") |
| set(AOM_AS_FLAGS "-march=armv8-a") |
| set(CMAKE_SYSTEM_PROCESSOR "arm64") |
| |
| # No intrinsics flag required for arm64-linux-gcc. |
| set(AOM_NEON_INTRIN_FLAG "") |
| |
| # No runtime cpu detect for arm64-linux-gcc. |
| set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE STRING "") |