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#-------------------------------------------------------------------------------
# Copyright (c) 2020-2021, Arm Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
#-------------------------------------------------------------------------------
# Find Linux FF-A user space shim repo location.
# It contains a kernel module which exposes FF-A operations to user space using DebugFS.
# If a CMake variable exists, use it as is.
# If not, try to copy the value from the environment.
# If neither is present, try to download.
if(NOT DEFINED LINUX_FFA_USER_SHIM_DIR)
if(DEFINED ENV{LINUX_FFA_USER_SHIM_DIR})
set(LINUX_FFA_USER_SHIM_DIR $ENV{LINUX_FFA_USER_SHIM_DIR}
CACHE STRING "Linux FF-A user space shim dir")
else()
set(LINUX_FFA_USER_SHIM_URL "https://git.gitlab.arm.com/linux-arm/linux-trusted-services.git"
CACHE STRING "Linux FF-A user space shim repository URL")
set(LINUX_FFA_USER_SHIM_REFSPEC "main"
CACHE STRING "Linux FF-A user space shim git refspec")
find_program(GIT_COMMAND "git")
if (NOT GIT_COMMAND)
message(FATAL_ERROR "Please install git")
endif()
include(FetchContent)
FetchContent_Declare(linux_ffa_user_shim
GIT_REPOSITORY ${LINUX_FFA_USER_SHIM_URL}
GIT_TAG ${LINUX_FFA_USER_SHIM_REFSPEC}
GIT_SHALLOW TRUE
)
# FetchContent_GetProperties exports <name>_SOURCE_DIR and <name>_BINARY_DIR variables
FetchContent_GetProperties(linux_ffa_user_shim)
if(NOT linux_ffa_user_shim_POPULATED)
message(STATUS "Fetching Linux FF-A user space shim")
FetchContent_Populate(linux_ffa_user_shim)
endif()
set(LINUX_FFA_USER_SHIM_DIR ${linux_ffa_user_shim_SOURCE_DIR}
CACHE STRING "Linux FF-A user space shim dir")
endif()
endif()
find_path(LINUX_FFA_USER_SHIM_INCLUDE_DIR
NAMES arm_ffa_user.h
PATHS ${LINUX_FFA_USER_SHIM_DIR}
NO_DEFAULT_PATH
REQUIRED
DOC "Linux FF-A user space shim include directory"
)
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