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cmake: add support for building and installing interfaces

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This commit is contained in:
max 🍓
2026-02-26 19:45:46 +00:00
parent b631fca0fd
commit dc93f7db4c
3 changed files with 107 additions and 0 deletions
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75
cmake/Msg-Interface.cmake Normal file
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@@ -0,0 +1,75 @@
find_program(IFC
NAMES ifc
REQUIRED
HINTS ${BUILD_TOOLS_DIR})
message(STATUS "Found interface compiler: ${IFC}")
function(add_interface)
set(options)
set(one_value_args NAME PARENT_DIR PATH)
set(multi_value_args)
cmake_parse_arguments(PARSE_ARGV 0 arg
"${options}"
"${one_value_args}"
"${multi_value_args}")
message(STATUS "Building interface ${arg_NAME}")
file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${arg_PARENT_DIR})
set(header_path ${CMAKE_CURRENT_BINARY_DIR}/${arg_PARENT_DIR}/${arg_NAME}.h)
add_custom_command(
OUTPUT ${header_path}
COMMAND ${IFC} ${arg_PATH}
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${arg_PARENT_DIR}
COMMENT "Compiling interface: ${arg_NAME}")
add_custom_target(ifgen-${arg_NAME} ALL
DEPENDS ${header_path})
set_target_properties(ifgen-${arg_NAME} PROPERTIES
iface_header_path ${header_path}
iface_parent_dir ${arg_PARENT_DIR})
add_library(iflib-${arg_NAME} INTERFACE)
set_target_properties(iflib-${arg_NAME} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_CURRENT_BINARY_DIR})
add_dependencies(iflib-${arg_NAME} ifgen-${arg_NAME})
add_library(interface::${arg_NAME} ALIAS iflib-${arg_NAME})
endfunction(add_interface)
function(iface_get_header_path)
set(options)
set(one_value_args NAME OUT)
set(multi_value_args)
cmake_parse_arguments(PARSE_ARGV 0 arg
"${options}"
"${one_value_args}"
"${multi_value_args}")
get_property(
value
TARGET ifgen-${name}
PROPERTY iface_header_path)
set(${arg_OUT} ${value} PARENT_SCOPE)
endfunction(iface_get_header_path)
function(iface_get_parent_dir)
set(options)
set(one_value_args NAME OUT)
set(multi_value_args)
cmake_parse_arguments(PARSE_ARGV 0 arg
"${options}"
"${one_value_args}"
"${multi_value_args}")
get_property(
value
TARGET ifgen-${name}
PROPERTY iface_parent_dir)
set(${arg_OUT} ${value} PARENT_SCOPE)
endfunction(iface_get_parent_dir)

31
cmake/Sysroot.cmake
View File

@@ -186,6 +186,37 @@ function(sysroot_add_file)
set_property(GLOBAL PROPERTY sysroot_target_list ${sysroot_targets} ${sysroot_target_name})
endfunction(sysroot_add_file)
function(sysroot_add_interface)
set(options)
set(one_value_args NAME DEST_DIR)
set(multi_value_args DEPENDS)
cmake_parse_arguments(PARSE_ARGV 0 arg
"${options}"
"${one_value_args}"
"${multi_value_args}")
iface_get_header_path(NAME ${arg_NAME} OUT src_path)
iface_get_parent_dir(NAME ${arg_NAME} OUT parent_dir)
set(dest_dir ${arg_DEST_DIR}/${parent_dir})
set(sysroot_target_name _sysroot-iface-${arg_NAME})
get_property(sysroot_targets GLOBAL PROPERTY sysroot_target_list)
list(LENGTH sysroot_targets nr_sysroot_targets)
if (${nr_sysroot_targets} GREATER 0)
math(EXPR serialiser_index "${nr_sysroot_targets}-1")
list(GET sysroot_targets ${serialiser_index} serialiser)
endif ()
add_custom_target(${sysroot_target_name}
COMMAND ${Python_EXECUTABLE} ${sysroot_tool}
add-binary ${sysroot_manifest} ${arg_NAME}
${dest_dir} ${src_path}
COMMENT "Preparing sysroot component: ${arg_ID}"
DEPENDS ifgen-${arg_NAME} ${serialiser} ${arg_DEPENDS})
set_property(GLOBAL PROPERTY sysroot_target_list ${sysroot_targets} ${sysroot_target_name})
endfunction(sysroot_add_interface)
function(sysroot_finalise)
get_property(sysroot_targets GLOBAL PROPERTY sysroot_target_list)