You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
289 lines
9.7 KiB
289 lines
9.7 KiB
# Copyright 2020 The Pigweed Authors
|
|
#
|
|
# 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
|
|
#
|
|
# https://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.
|
|
include_guard(GLOBAL)
|
|
|
|
# Declares a protocol buffers library. This function creates a library for each
|
|
# supported protocol buffer implementation:
|
|
#
|
|
# ${NAME}.pwpb - pw_protobuf generated code
|
|
# ${NAME}.nanopb - Nanopb generated code (requires Nanopb)
|
|
#
|
|
# This function also creates libraries for generating pw_rpc code:
|
|
#
|
|
# ${NAME}.nanopb_rpc - generates Nanopb pw_rpc code
|
|
# ${NAME}.raw_rpc - generates raw pw_rpc (no protobuf library) code
|
|
# ${NAME}.pwpb_rpc - (Not implemented) generates pw_protobuf pw_rpc code
|
|
#
|
|
# Args:
|
|
#
|
|
# NAME - the base name of the libraries to create
|
|
# SOURCES - .proto source files
|
|
# DEPS - dependencies on other pw_proto_library targets
|
|
# PREFIX - prefix add to the proto files
|
|
# STRIP_PREFIX - prefix to remove from the proto files
|
|
# INPUTS - files to include along with the .proto files (such as Nanopb
|
|
# .options files
|
|
#
|
|
function(pw_proto_library NAME)
|
|
cmake_parse_arguments(PARSE_ARGV 1 arg "" "STRIP_PREFIX;PREFIX"
|
|
"SOURCES;INPUTS;DEPS")
|
|
|
|
if("${arg_SOURCES}" STREQUAL "")
|
|
message(FATAL_ERROR
|
|
"pw_proto_library requires at least one .proto file in SOURCES. No "
|
|
"SOURCES were listed for ${NAME}.")
|
|
endif()
|
|
|
|
set(out_dir "${CMAKE_CURRENT_BINARY_DIR}/${NAME}")
|
|
|
|
# Use INTERFACE libraries to track the proto include paths that are passed to
|
|
# protoc.
|
|
set(include_deps "${arg_DEPS}")
|
|
list(TRANSFORM include_deps APPEND ._includes)
|
|
|
|
add_library("${NAME}._includes" INTERFACE)
|
|
target_include_directories("${NAME}._includes" INTERFACE "${out_dir}/sources")
|
|
target_link_libraries("${NAME}._includes" INTERFACE ${include_deps})
|
|
|
|
# Generate a file with all include paths needed by protoc. Use the include
|
|
# directory paths and replace ; with \n.
|
|
set(include_file "${out_dir}/include_paths.txt")
|
|
file(GENERATE OUTPUT "${include_file}"
|
|
CONTENT
|
|
"$<JOIN:$<TARGET_PROPERTY:${NAME}._includes,INTERFACE_INCLUDE_DIRECTORIES>,\n>")
|
|
|
|
if("${arg_STRIP_PREFIX}" STREQUAL "")
|
|
set(arg_STRIP_PREFIX "${CMAKE_CURRENT_SOURCE_DIR}")
|
|
endif()
|
|
|
|
foreach(path IN LISTS arg_SOURCES arg_INPUTS)
|
|
get_filename_component(abspath "${path}" ABSOLUTE)
|
|
list(APPEND files_to_mirror "${abspath}")
|
|
endforeach()
|
|
|
|
# Mirror the sources to the output directory with the specified prefix.
|
|
_pw_rebase_paths(
|
|
sources "${out_dir}/sources/${arg_PREFIX}" "${arg_STRIP_PREFIX}" "${arg_SOURCES}" "")
|
|
_pw_rebase_paths(
|
|
inputs "${out_dir}/sources/${arg_PREFIX}" "${arg_STRIP_PREFIX}" "${arg_INPUTS}" "")
|
|
|
|
add_custom_command(
|
|
COMMAND
|
|
python3
|
|
"$ENV{PW_ROOT}/pw_build/py/pw_build/mirror_tree.py"
|
|
--source-root "${arg_STRIP_PREFIX}"
|
|
--directory "${out_dir}/sources/${arg_PREFIX}"
|
|
${files_to_mirror}
|
|
DEPENDS
|
|
"$ENV{PW_ROOT}/pw_build/py/pw_build/mirror_tree.py"
|
|
${files_to_mirror}
|
|
OUTPUT
|
|
${sources} ${inputs}
|
|
)
|
|
add_custom_target("${NAME}._sources" DEPENDS ${sources} ${inputs})
|
|
|
|
set(sources_deps "${arg_DEPS}")
|
|
list(TRANSFORM sources_deps APPEND ._sources)
|
|
|
|
if(sources_deps)
|
|
add_dependencies("${NAME}._sources" ${sources_deps})
|
|
endif()
|
|
|
|
# Create a protobuf target for each supported protobuf library.
|
|
_pw_pwpb_library(
|
|
"${NAME}" "${sources}" "${inputs}" "${arg_DEPS}" "${include_file}" "${out_dir}")
|
|
_pw_raw_rpc_library(
|
|
"${NAME}" "${sources}" "${inputs}" "${arg_DEPS}" "${include_file}" "${out_dir}")
|
|
_pw_nanopb_library(
|
|
"${NAME}" "${sources}" "${inputs}" "${arg_DEPS}" "${include_file}" "${out_dir}")
|
|
_pw_nanopb_rpc_library(
|
|
"${NAME}" "${sources}" "${inputs}" "${arg_DEPS}" "${include_file}" "${out_dir}")
|
|
endfunction(pw_proto_library)
|
|
|
|
function(_pw_rebase_paths VAR OUT_DIR ROOT FILES EXTENSIONS)
|
|
foreach(file IN LISTS FILES)
|
|
get_filename_component(file "${file}" ABSOLUTE)
|
|
file(RELATIVE_PATH file "${ROOT}" "${file}")
|
|
|
|
if ("${EXTENSIONS}" STREQUAL "")
|
|
list(APPEND mirrored_files "${OUT_DIR}/${file}")
|
|
else()
|
|
foreach(ext IN LISTS EXTENSIONS)
|
|
get_filename_component(dir "${file}" DIRECTORY)
|
|
get_filename_component(name "${file}" NAME_WE)
|
|
list(APPEND mirrored_files "${OUT_DIR}/${dir}/${name}${ext}")
|
|
endforeach()
|
|
endif()
|
|
endforeach()
|
|
|
|
set("${VAR}" "${mirrored_files}" PARENT_SCOPE)
|
|
endfunction(_pw_rebase_paths)
|
|
|
|
# Internal function that invokes protoc through generate_protos.py.
|
|
function(_pw_generate_protos
|
|
TARGET LANGUAGE PLUGIN OUTPUT_EXTS INCLUDE_FILE OUT_DIR SOURCES INPUTS DEPS)
|
|
# Determine the names of the compiled output files.
|
|
_pw_rebase_paths(outputs
|
|
"${OUT_DIR}/${LANGUAGE}" "${OUT_DIR}/sources" "${SOURCES}" "${OUTPUT_EXTS}")
|
|
|
|
# Export the output files to the caller's scope so it can use them if needed.
|
|
set(generated_outputs "${outputs}" PARENT_SCOPE)
|
|
|
|
if("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
|
|
get_filename_component(dir "${source_file}" DIRECTORY)
|
|
get_filename_component(name "${source_file}" NAME_WE)
|
|
set(PLUGIN "${dir}/${name}.bat")
|
|
endif()
|
|
|
|
set(script "$ENV{PW_ROOT}/pw_protobuf_compiler/py/pw_protobuf_compiler/generate_protos.py")
|
|
add_custom_command(
|
|
COMMAND
|
|
python3
|
|
"${script}"
|
|
--language "${LANGUAGE}"
|
|
--plugin-path "${PLUGIN}"
|
|
--include-file "${INCLUDE_FILE}"
|
|
--compile-dir "${OUT_DIR}/sources"
|
|
--out-dir "${OUT_DIR}/${LANGUAGE}"
|
|
--sources ${SOURCES}
|
|
DEPENDS
|
|
${script}
|
|
${SOURCES}
|
|
${INPUTS}
|
|
${DEPS}
|
|
OUTPUT
|
|
${outputs}
|
|
)
|
|
add_custom_target("${TARGET}" DEPENDS ${outputs})
|
|
endfunction(_pw_generate_protos)
|
|
|
|
# Internal function that creates a pwpb proto library.
|
|
function(_pw_pwpb_library NAME SOURCES INPUTS DEPS INCLUDE_FILE OUT_DIR)
|
|
list(TRANSFORM DEPS APPEND .pwpb)
|
|
|
|
_pw_generate_protos("${NAME}._generate.pwpb"
|
|
pwpb
|
|
"$ENV{PW_ROOT}/pw_protobuf/py/pw_protobuf/plugin.py"
|
|
".pwpb.h"
|
|
"${INCLUDE_FILE}"
|
|
"${OUT_DIR}"
|
|
"${SOURCES}"
|
|
"${INPUTS}"
|
|
"${DEPS}"
|
|
)
|
|
|
|
# Create the library with the generated source files.
|
|
add_library("${NAME}.pwpb" INTERFACE)
|
|
target_include_directories("${NAME}.pwpb" INTERFACE "${OUT_DIR}/pwpb")
|
|
target_link_libraries("${NAME}.pwpb" INTERFACE pw_protobuf ${DEPS})
|
|
add_dependencies("${NAME}.pwpb" "${NAME}._generate.pwpb")
|
|
endfunction(_pw_pwpb_library)
|
|
|
|
# Internal function that creates a raw_rpc proto library.
|
|
function(_pw_raw_rpc_library NAME SOURCES INPUTS DEPS INCLUDE_FILE OUT_DIR)
|
|
list(TRANSFORM DEPS APPEND .raw_rpc)
|
|
|
|
_pw_generate_protos("${NAME}._generate.raw_rpc"
|
|
raw_rpc
|
|
"$ENV{PW_ROOT}/pw_rpc/py/pw_rpc/plugin_raw.py"
|
|
".raw_rpc.pb.h"
|
|
"${INCLUDE_FILE}"
|
|
"${OUT_DIR}"
|
|
"${SOURCES}"
|
|
"${INPUTS}"
|
|
"${DEPS}"
|
|
)
|
|
|
|
# Create the library with the generated source files.
|
|
add_library("${NAME}.raw_rpc" INTERFACE)
|
|
target_include_directories("${NAME}.raw_rpc" INTERFACE "${OUT_DIR}/raw_rpc")
|
|
target_link_libraries("${NAME}.raw_rpc"
|
|
INTERFACE
|
|
pw_rpc.raw
|
|
pw_rpc.server
|
|
${DEPS}
|
|
)
|
|
add_dependencies("${NAME}.raw_rpc" "${NAME}._generate.raw_rpc")
|
|
endfunction(_pw_raw_rpc_library)
|
|
|
|
# Internal function that creates a nanopb proto library.
|
|
function(_pw_nanopb_library NAME SOURCES INPUTS DEPS INCLUDE_FILE OUT_DIR)
|
|
list(TRANSFORM DEPS APPEND .nanopb)
|
|
|
|
if("${dir_pw_third_party_nanopb}" STREQUAL "")
|
|
add_custom_target("${NAME}._generate.nanopb"
|
|
cmake -E echo
|
|
ERROR: Attempting to use pw_proto_library, but
|
|
dir_pw_third_party_nanopb is not set. Set dir_pw_third_party_nanopb
|
|
to the path to the Nanopb repository.
|
|
COMMAND
|
|
cmake -E false
|
|
DEPENDS
|
|
${DEPS}
|
|
SOURCES
|
|
${SOURCES}
|
|
)
|
|
set(generated_outputs $<TARGET_PROPERTY:pw_build.empty,SOURCES>)
|
|
else()
|
|
_pw_generate_protos("${NAME}._generate.nanopb"
|
|
nanopb
|
|
"${dir_pw_third_party_nanopb}/generator/protoc-gen-nanopb"
|
|
".pb.h;.pb.c"
|
|
"${INCLUDE_FILE}"
|
|
"${OUT_DIR}"
|
|
"${SOURCES}"
|
|
"${INPUTS}"
|
|
"${DEPS}"
|
|
)
|
|
endif()
|
|
|
|
# Create the library with the generated source files.
|
|
add_library("${NAME}.nanopb" EXCLUDE_FROM_ALL ${generated_outputs})
|
|
target_include_directories("${NAME}.nanopb" PUBLIC "${OUT_DIR}/nanopb")
|
|
target_link_libraries("${NAME}.nanopb" PUBLIC pw_third_party.nanopb ${DEPS})
|
|
add_dependencies("${NAME}.nanopb" "${NAME}._generate.nanopb")
|
|
endfunction(_pw_nanopb_library)
|
|
|
|
# Internal function that creates a nanopb_rpc library.
|
|
function(_pw_nanopb_rpc_library NAME SOURCES INPUTS DEPS INCLUDE_FILE OUT_DIR)
|
|
# Determine the names of the output files.
|
|
list(TRANSFORM DEPS APPEND .nanopb_rpc)
|
|
|
|
_pw_generate_protos("${NAME}._generate.nanopb_rpc"
|
|
nanopb_rpc
|
|
"$ENV{PW_ROOT}/pw_rpc/py/pw_rpc/plugin_nanopb.py"
|
|
".rpc.pb.h"
|
|
"${INCLUDE_FILE}"
|
|
"${OUT_DIR}"
|
|
"${SOURCES}"
|
|
"${INPUTS}"
|
|
"${DEPS}"
|
|
)
|
|
|
|
# Create the library with the generated source files.
|
|
add_library("${NAME}.nanopb_rpc" INTERFACE)
|
|
target_include_directories("${NAME}.nanopb_rpc"
|
|
INTERFACE
|
|
"${OUT_DIR}/nanopb_rpc"
|
|
)
|
|
target_link_libraries("${NAME}.nanopb_rpc"
|
|
INTERFACE
|
|
"${NAME}.nanopb"
|
|
pw_rpc.nanopb.method_union
|
|
pw_rpc.server
|
|
${DEPS}
|
|
)
|
|
add_dependencies("${NAME}.nanopb_rpc" "${NAME}._generate.nanopb_rpc")
|
|
endfunction(_pw_nanopb_rpc_library)
|