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#
# Copyright (c) 2020-2021 Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the License); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an AS IS BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Add .elf to all executables
set(CMAKE_EXECUTABLE_SUFFIX ".elf")
#############################################################################
# Link options
#############################################################################
function(ethosu_target_link_options target scope)
cmake_parse_arguments(ARG "" "LINK_FILE;ENTRY" "" ${ARGN})
# Store the link file in a property to be evaluated by the executable.
set_property(GLOBAL PROPERTY ETHOSU_TARGET_LINK_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_LINK_FILE})
if (ARG_ENTRY)
target_link_options(${target} ${scope} --entry Reset_Handler)
endif()
endfunction()
function(ethosu_eval_link_options target)
# Get the link file from the cache
get_property(LINK_FILE GLOBAL PROPERTY ETHOSU_TARGET_LINK_FILE)
set(prop "$<TARGET_PROPERTY:${target},COMPILE_DEFINITIONS>")
if (CMAKE_CXX_COMPILER_ID STREQUAL "ARMClang")
set(LINK_FILE_OUT ${LINK_FILE}.scatter)
set(LINK_FILE_OPTION "--scatter")
target_link_options(${target} PUBLIC
--predefine=\"-D$<JOIN:${prop},\" ;--predefine=\"-D>\")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(LINK_FILE_IN ${LINK_FILE}.ld)
get_filename_component(LINK_FILE_OUT_BASE ${LINK_FILE} NAME)
set(LINK_FILE_OUT ${CMAKE_CURRENT_BINARY_DIR}/${LINK_FILE_OUT_BASE}-${target}.ld)
set(LINK_FILE_OPTION "-T")
add_custom_command(
OUTPUT ${LINK_FILE_OUT}
DEPENDS ${LINK_FILE_IN}
BYPRODUCTS ${LINK_FILE_OUT}
COMMAND ${CMAKE_C_COMPILER} -E -x c -P -o ${LINK_FILE_OUT} ${LINK_FILE_IN}
COMMAND_EXPAND_LISTS "-D$<JOIN:${prop},;-D>"
COMMENT "Preprocessing and generating linker script"
VERBATIM)
add_custom_target(${target}-linker-script
DEPENDS ${LINK_FILE_OUT}
VERBATIM)
add_dependencies(${target} ${target}-linker-script)
endif()
target_link_options(${target} PUBLIC ${LINK_FILE_OPTION} ${LINK_FILE_OUT})
set_target_properties(${target} PROPERTIES LINK_DEPENDS ${LINK_FILE_OUT})
endfunction()
#############################################################################
# Executable
#############################################################################
function(ethosu_add_executable target)
cmake_parse_arguments(ARGS "" "TARGET_LIBRARY" "SOURCES;LIBRARIES" ${ARGN})
add_executable(${target})
target_sources(${target} PRIVATE
${ARGS_SOURCES})
if(NOT ARGS_TARGET_LIBRARY)
set(ARGS_TARGET_LIBRARY ethosu_target_init)
endif()
target_link_libraries(${target} PRIVATE
${ARGS_TARGET_LIBRARY} ethosu_core ${ARGS_LIBRARIES})
ethosu_eval_link_options(${target})
endfunction()
#############################################################################
# Test
#############################################################################
function(ethosu_add_test target)
if(NOT BUILD_TESTING)
return()
endif()
cmake_parse_arguments(ARGS "" "NAME" "COMMAND" ${ARGN})
if (NOT ARGS_COMMAND)
set(ARGS_COMMAND ${ETHOSU_COMMAND_DEFAULT})
endif()
if (NOT ARGS_NAME)
set(ARGS_NAME ${target})
endif()
add_test(NAME ${ARGS_NAME}
COMMAND ${ARGS_COMMAND} $<TARGET_FILE:${target}>)
endfunction()
#############################################################################
# Executable and test
#############################################################################
function(ethosu_add_executable_test target)
ethosu_add_executable(${target} ${ARGN})
ethosu_add_test(${target} ${ARGN})
endfunction()
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