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pico_sdk_init.cmake
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pico_sdk_init.cmake
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# Pre-initialize the Raspberry Pi Pico SDK, setting up the platform and toolchain and some CMake utility functions
# This file must be included prior to the project() call
# Note: this file is perhaps named badly, as it provides a method pico_sdk_init which
# the enclosing project calls LATER to actually "initialize" the SDK (by including the CMakeLists.txt from this
# same directory)
if (NOT TARGET _pico_sdk_pre_init_marker)
add_library(_pico_sdk_pre_init_marker INTERFACE)
function(pico_is_top_level_project VAR)
string(TOLOWER ${CMAKE_CURRENT_LIST_DIR} __list_dir)
string(TOLOWER ${CMAKE_SOURCE_DIR} __source_dir)
if (__source_dir STREQUAL __list_dir)
set(${VAR} 1 PARENT_SCOPE)
else()
set(${VAR} 0 PARENT_SCOPE)
endif()
endfunction()
function(pico_message_debug MESSAGE)
# The log-level system was added in CMake 3.15.
if(${CMAKE_VERSION} VERSION_LESS "3.15.0")
message(${MESSAGE})
else()
message(DEBUG ${MESSAGE})
endif()
endfunction()
if (NOT PICO_SDK_PATH)
set(PICO_SDK_PATH ${CMAKE_CURRENT_LIST_DIR})
endif ()
get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
set(PICO_SDK_PATH ${CMAKE_CURRENT_LIST_DIR} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
list(APPEND CMAKE_MODULE_PATH ${PICO_SDK_PATH}/cmake)
include(${CMAKE_CURRENT_LIST_DIR}/pico_sdk_version.cmake)
include(pico_utils)
message("PICO_SDK_PATH is ${CMAKE_CURRENT_LIST_DIR}")
macro(pico_sdk_init)
if (NOT CMAKE_PROJECT_NAME)
message(WARNING "pico_sdk_init() should be called after the project is created (and languages added)")
endif()
add_subdirectory(${PICO_SDK_PATH} pico-sdk)
endmacro()
macro(add_sub_list_dirs var)
foreach(LIST_DIR IN LISTS ${var})
get_filename_component(SHORT_NAME "${LIST_DIR}" NAME)
pico_message_debug("Including custom CMakeLists.txt ${SHORT_NAME}")
add_subdirectory(${LIST_DIR} ${SHORT_NAME})
endforeach()
endmacro()
macro(add_sub_list_files var)
foreach(LIST_FILE IN LISTS ${var})
pico_message_debug("Including custom CMake file ${LIST_FILE}")
include(${LIST_FILE})
endforeach()
endmacro()
macro(pico_register_common_scope_var NAME)
if (NOT ${NAME} IN_LIST PICO_PROMOTE_COMMON_SCOPE_VARS)
list(APPEND PICO_PROMOTE_COMMON_SCOPE_VARS ${NAME})
endif()
endmacro()
set(PICO_PROMOTE_COMMON_SCOPE_VARS
PICO_INCLUDE_DIRS
PICO_SDK_POST_LIST_DIRS
PICO_SDK_POST_LIST_FILES
PICO_CONFIG_HEADER_FILES
PICO_RP2040_CONFIG_HEADER_FILES
PICO_BOARD_CMAKE_OVERRIDES
)
macro(pico_promote_common_scope_vars)
set(PICO_PROMOTE_COMMON_SCOPE_VARS ${PICO_PROMOTE_COMMON_SCOPE_VARS} PARENT_SCOPE)
foreach(VAR IN LISTS PICO_PROMOTE_COMMON_SCOPE_VARS)
SET(${VAR} ${${VAR}} PARENT_SCOPE)
endforeach()
endmacro()
include(pico_pre_load_platform)
# We want to configure correct toolchain prior to project load
# todo perhaps this should be included by the platform instead?
include(pico_pre_load_toolchain)
endif()