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cmake:implement CMake build for NuttX Lua interpreter
add CMake module for register lua mod nsh> lua Lua 5.4.0 Copyright (C) 1994-2020 Lua.org, PUC-Rio > hello.say_hello() Hello World! > io.write("abs is =",math.abs(-10),"\n") abs is =10 > os.exit() nsh> Signed-off-by: xuxin19 <[email protected]>
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‎CMakeLists.txt

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# ~~~
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if(CONFIG_APPS_DIR)
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# add apps cmake modules
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/cmake)
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include(nuttx_add_luamod)
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nuttx_add_library(apps)
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if(NOT EXISTS {NUTTX_APPS_BINDIR}/dummy.c)
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file(TOUCH ${NUTTX_APPS_BINDIR}/dummy.c)

‎cmake/nuttx_add_luamod.cmake

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# ##############################################################################
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# cmake/nuttx_add_luamod.cmake
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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set(LUAMOD_DIR ${CMAKE_BINARY_DIR}/luamod)
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if(NOT EXISTS {LUAMOD_DIR})
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file(MAKE_DIRECTORY ${LUAMOD_DIR})
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endif()
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include(nuttx_parse_function_args)
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# ~~~
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# nuttx_add_luamod
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#
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# Description:
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# Register custom Lua MOD to Lua interpreter
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#
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# Example:
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# nuttx_add_luamod(
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# MODS
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# ${custom_mods}
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#
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# ~~~
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function(nuttx_add_luamod)
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# parse arguments into variables
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nuttx_parse_function_args(
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FUNC
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nuttx_add_luamod
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MULTI_VALUE
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MODS
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REQUIRED
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MODS
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ARGN
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${ARGN})
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set(LUAMOD_LIST ${LUAMOD_DIR}/luamod_list.h)
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set(LUAMOD_PROTO ${LUAMOD_DIR}/luamod_proto.h)
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foreach(mod ${MODS})
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set(MOD_PDAT ${LUAMOD_DIR}/${mod}.pdat)
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set(MOD_BDAT ${LUAMOD_DIR}/${mod}.bdat)
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add_custom_command(
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OUTPUT ${MOD_PDAT} ${MOD_BDAT}
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COMMAND ${CMAKE_COMMAND} -E echo "{\"${mod}\", luaopen_${mod}}," >>
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${LUAMOD_LIST}
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COMMAND ${CMAKE_COMMAND} -E echo "int luaopen_${mod}(lua_State *L);" >>
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${LUAMOD_PROTO}
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COMMAND ${CMAKE_COMMAND} -E touch ${MOD_PDAT}
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COMMAND ${CMAKE_COMMAND} -E touch ${MOD_BDAT}
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WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
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VERBATIM
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COMMENT "Lua Mod:Gen and Updating lua mod => ${mod}")
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add_custom_target(lua_${mod} DEPENDS ${MOD_PDAT} ${MOD_BDAT})
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add_dependencies(apps_context lua_${mod})
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endforeach()
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endfunction()

‎examples/lua_module/CMakeLists.txt

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# ##############################################################################
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# apps/examples/lua_module/CMakeLists.txt
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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if(CONFIG_EXAMPLES_LUA_MODULE)
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target_sources(apps PRIVATE luamod_hello.c)
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# register lua mod
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nuttx_add_luamod(MODS hello)
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endif()

‎interpreters/lua/CMakeLists.txt

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# ##############################################################################
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# apps/interpreters/lua/CMakeLists.txt
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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if(CONFIG_INTERPRETERS_LUA)
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# ############################################################################
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# Config and Fetch lua
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# ############################################################################
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set(LUA_DIR ${CMAKE_CURRENT_LIST_DIR}/lua)
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if(NOT EXISTS ${LUA_DIR})
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set(LUA_URL https://github.com/lua/lua/archive/refs/tags/)
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FetchContent_Declare(
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lua_fetch
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URL ${LUA_URL}/v${CONFIG_INTERPRETER_LUA_VERSION}.tar.gz SOURCE_DIR
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${CMAKE_CURRENT_LIST_DIR}/lua BINARY_DIR
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${CMAKE_BINARY_DIR}/apps/interpreters/lua/lua
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DOWNLOAD_NO_PROGRESS true
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TIMEOUT 30)
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FetchContent_GetProperties(lua_fetch)
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if(NOT lua_fetch_POPULATED)
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FetchContent_Populate(lua_fetch)
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endif()
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endif()
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# ############################################################################
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# Flags
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# ############################################################################
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set(CFLAGS -DLUA_MAXINPUT=${CONFIG_INTERPRETER_LUA_IOBUFSIZE}
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-DLUA_PROGNAME=\"lua\")
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if(CONFIG_INTERPRETER_LUA_32BITS)
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list(APPEND CFLAGS -DLUA_32BITS)
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endif()
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if(NOT "${CONFIG_INTERPRETER_LUA_PATH}" STREQUAL "")
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list(APPEND CFLAGS -DLUA_PATH_DEFAULT=\"${CONFIG_INTERPRETER_LUA_PATH}\")
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endif()
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if(NOT "${CONFIG_INTERPRETER_LUA_CPATH}" STREQUAL "")
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list(APPEND CFLAGS -DLUA_CPATH_DEFAULT=\"${CONFIG_INTERPRETER_LUA_CPATH}\")
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endif()
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if(CONFIG_SYSTEM_READLINE)
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set(LUA_SYSTEM_READLINE_DEF
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[=[
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#define lua_initreadline(L) ((void)L)
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#define lua_readline(L,b,p) ((void)L,fputs(p,stdout),fflush(stdout),readline_stream(b,LUA_MAXINPUT,stdin,stdout))
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#define lua_saveline(L,line) {(void)L;(void)line;}
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#define lua_freeline(L,line) {(void)L;(void)b;}
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]=])
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/def_lua_readline.h
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"${LUA_SYSTEM_READLINE_DEF}")
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list(APPEND CFLAGS "SHELL:-include \"system/readline.h\"")
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list(APPEND CFLAGS
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"SHELL:-include ${CMAKE_CURRENT_BINARY_DIR}/def_lua_readline.h")
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endif()
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# ############################################################################
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# Sources
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# ############################################################################
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file(GLOB CORELIBS_SRCS ${LUA_DIR}/*lib.c)
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list(REMOVE_ITEM CORELIBS_SRCS ${LUA_DIR}/lauxlib.c)
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file(GLOB CSRCS ${LUA_DIR}/*.c)
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list(
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REMOVE_ITEM
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CSRCS
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${LUA_DIR}/onelua.c
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${LUA_DIR}/luac.c
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${LUA_DIR}/linit.c
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${LUA_DIR}/lua.c
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${CORELIBS_SRCS})
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list(APPEND CSRCS nuttx_linit.c)
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if(CONFIG_INTERPRETER_LUA_CORELIBS)
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list(APPEND CSRCS ${CORELIBS_SRCS})
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set(LUA_LIB_H_PATH ${LUA_DIR}/lualib.h)
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file(READ "${LUA_LIB_H_PATH}" FILE_CONTENTS)
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string(REGEX MATCHALL "#define[ \t]+LUA_[A-Z]+LIBNAME[ \t]+\"[^\"]+\""
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LIB_DEFINITIONS "${FILE_CONTENTS}")
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foreach(DEFINITION IN LISTS LIB_DEFINITIONS)
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string(REGEX REPLACE ".*\"([^\"]+)\"" "\\1" LIB_NAME "${DEFINITION}")
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# register lua core mod
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nuttx_add_luamod(MODS ${LIB_NAME})
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endforeach()
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endif()
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# ############################################################################
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# Include Directory
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# ############################################################################
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set(INCDIR ${LUAMOD_DIR})
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# ############################################################################
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# Library Configuration
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# ############################################################################
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set_property(
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TARGET nuttx
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APPEND
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PROPERTY NUTTX_INCLUDE_DIRECTORIES ${LUA_DIR})
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# ############################################################################
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# Applications Configuration
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# ############################################################################
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nuttx_add_application(
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MODULE
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${CONFIG_INTERPRETERS_LUA}
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NAME
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lua
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STACKSIZE
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${CONFIG_INTERPRETER_LUA_STACKSIZE}
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PRIORITY
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${CONFIG_INTERPRETER_LUA_PRIORITY}
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SRCS
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${LUA_DIR}/lua.c
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${CSRCS}
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INCLUDE_DIRECTORIES
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${INCDIR}
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COMPILE_FLAGS
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${CFLAGS})
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endif()

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