build/cmake/toolchains/arm64-linux-gcc.cmake

##
## 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 (NOT 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 something known to work.
  set(CROSS aarch64-linux-gnu-)
endif ()

set(CMAKE_C_COMPILER ${CROSS}gcc)
set(CMAKE_CXX_COMPILER ${CROSS}g++)
set(AS_EXECUTABLE ${CROSS}as)
set(CMAKE_C_COMPILER_ARG1 "-march=armv8-a")
set(CMAKE_CXX_COMPILER_ARG1 "-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 NUMBER "")

endif ()  # AOM_BUILD_CMAKE_TOOLCHAINS_ARM64_LINUX_GCC_CMAKE_