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 something known to work.
21  set(CROSS aarch64-linux-gnu-)
22endif()
23
24set(CMAKE_C_COMPILER ${CROSS}gcc)
25set(CMAKE_CXX_COMPILER ${CROSS}g++)
26set(AS_EXECUTABLE ${CROSS}as)
27set(CMAKE_C_COMPILER_ARG1 "-march=armv8-a")
28set(CMAKE_CXX_COMPILER_ARG1 "-march=armv8-a")
29set(AOM_AS_FLAGS "-march=armv8-a")
30set(CMAKE_SYSTEM_PROCESSOR "arm64")
31
32# No intrinsics flag required for arm64-linux-gcc.
33set(AOM_NEON_INTRIN_FLAG "")
34
35# No runtime cpu detect for arm64-linux-gcc.
36set(CONFIG_RUNTIME_CPU_DETECT 0 CACHE NUMBER "")
37