OVMS3-idf/tools/cmake/idf_functions.cmake
Angus Gratton abef220b13 cmake: Allow selecting toolchain file based on config
Refactor IDF "project" functionality under a wrapping of the default
"project" command, so we can tweak it a bit...

Will need more testing in other environments.
2018-04-30 09:59:20 +10:00

166 lines
5 KiB
CMake

# Some IDF-specific functions and functions
include(crosstool_version_check)
#
# Set some variables used by rest of the build
#
# Note at the time this macro is expanded, the config is not yet
# loaded and the toolchain and project are not yet set
#
macro(idf_set_global_variables)
# Note that CONFIG_xxx is not available when this function is called
set_default(EXTRA_COMPONENT_DIRS "")
# PROJECT_PATH has the path to the IDF project (top-level cmake directory)
#
# (cmake calls this CMAKE_SOURCE_DIR, keeping old name for compatibility.)
set(PROJECT_PATH "${CMAKE_SOURCE_DIR}")
# Note: "main" is no longer a component...
#
set_default(COMPONENT_DIRS "${PROJECT_PATH}/components ${EXTRA_COMPONENT_DIRS} ${IDF_PATH}/components")
spaces2list(COMPONENT_DIRS)
spaces2list(COMPONENTS)
# Tell cmake to drop executables in the top-level build dir
set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}")
# path to idf.py tool
set(IDFTOOL ${PYTHON} "${IDF_PATH}/tools/idf.py")
# generate compile_commands.json
set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
endmacro()
# Add all the IDF global compiler & preprocessor options
# (applied to all components). Some are config-dependent
#
# If you only want to set options for a particular component,
# don't call or edit this function. TODO DESCRIBE WHAT TO DO INSTEAD
#
function(idf_set_global_compiler_options)
add_definitions(-DESP_PLATFORM)
add_definitions(-DHAVE_CONFIG_H)
if(CONFIG_OPTIMIZATION_LEVEL_RELEASE)
add_compile_options(-Os)
else()
add_compile_options(-Og)
endif()
add_c_compile_options(-std=gnu99)
add_cxx_compile_options(-std=gnu++11 -fno-rtti)
if(CONFIG_CXX_EXCEPTIONS)
add_cxx_compile_options(-fexceptions)
else()
add_cxx_compile_options(-fno-exceptions)
endif()
# Default compiler configuration
add_compile_options(-ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib)
# Default warnings configuration
add_compile_options(-Wall -Werror=all -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wextra -Wno-unused-parameter -Wno-sign-compare)
add_c_compile_options(-Wno-old-style-declaration)
# Stack protection
if(NOT BOOTLOADER_BUILD)
if(CONFIG_STACK_CHECK_NORM)
add_compile_options(-fstack-protector)
elseif(CONFIG_STACK_CHECK_STRONG)
add_compile_options(-fstack-protector-strong)
elseif(CONFIG_STACK_CHECK_ALL)
add_compile_options(-fstack-protector-all)
endif()
endif()
if(CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED)
add_definitions(-DNDEBUG)
endif()
# Always generate debug symbols (even in Release mode, these don't
# go into the final binary so have no impact on size)
add_compile_options(-ggdb)
add_compile_options("-I${CMAKE_BINARY_DIR}") # for sdkconfig.h
endfunction(idf_set_global_compiler_options)
# Verify the IDF environment is configured correctly (environment, toolchain, etc)
function(idf_verify_environment)
if(NOT CMAKE_PROJECT_NAME)
message(FATAL_ERROR "Internal error, IDF project.cmake should have set this variable already")
endif()
# Check toolchain is configured properly in cmake
if(NOT ( ${CMAKE_SYSTEM_NAME} STREQUAL "Generic" AND ${CMAKE_C_COMPILER} MATCHES xtensa))
message(FATAL_ERROR "Internal error, toolchain has not been set correctly by project")
endif()
#
# Warn if the toolchain version doesn't match
#
# TODO: make these platform-specific for diff toolchains
gcc_version_check("5.2.0")
crosstool_version_check("1.22.0-80-g6c4433a")
endfunction()
# idf_add_executable
#
# Calls add_executable to add the final project executable
# Adds .map & .bin file targets
# Sets up flash-related targets
function(idf_add_executable)
set(exe_target ${PROJECT_NAME}.elf)
spaces2list(MAIN_SRCS)
add_executable(${exe_target} "${MAIN_SRCS}")
add_map_file(${exe_target})
add_flasher_argfile(${exe_target})
endfunction(idf_add_executable)
# add_map_file
#
# Set linker args for 'exe_target' to generate a linker Map file
function(add_map_file exe_target)
get_filename_component(basename ${exe_target} NAME_WE)
set(mapfile "${basename}.map")
target_link_libraries(${exe_target} "-Wl,--gc-sections -Wl,--cref -Wl,--Map=${mapfile} -Wl,--start-group")
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "${CMAKE_CURRENT_BINARY_DIR}/${mapfile}")
# add size targets, depend on map file, run idf_size.py
add_custom_target(size
DEPENDS ${exe_target}
COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py ${mapfile}
)
add_custom_target(size-files
DEPENDS ${exe_target}
COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py --files ${mapfile}
)
add_custom_target(size-components
DEPENDS ${exe_target}
COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py --archives ${mapfile}
)
endfunction(add_map_file)
# add_flasher_argfile
#
# Add argument file(s) for flashing the app, and for flashing the whole system
function(add_flasher_argfile)
endfunction(add_flasher_argfile)