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OVMS3-idf/tools/cmake/idf_functions.cmake

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CMake
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# 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 "")
# Commmon components, required by every component in the build
#
set_default(COMPONENT_REQUIRES_COMMON "cxx ${IDF_TARGET} newlib freertos heap log soc")
# PROJECT_PATH has the path to the IDF project (top-level cmake directory)
#
# (cmake calls this CMAKE_SOURCE_DIR, keeping old name for compatibility.)
set(PROJECT_PATH "${CMAKE_SOURCE_DIR}")
if(MAIN_SRCS)
message(WARNING "main is now a component, use of MAIN_SRCS is deprecated")
set_default(COMPONENT_DIRS "${PROJECT_PATH}/components ${EXTRA_COMPONENT_DIRS} \
${IDF_PATH}/components")
else()
set_default(COMPONENT_DIRS "${PROJECT_PATH}/components ${EXTRA_COMPONENT_DIRS} \
${IDF_PATH}/components ${PROJECT_PATH}/main")
endif()
spaces2list(COMPONENT_DIRS)
spaces2list(COMPONENTS)
# Tell cmake to drop executables in the top-level build dir
set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}")
# path to idf.py tool
set(IDFTOOL ${PYTHON} "${IDF_PATH}/tools/idf.py")
# Temporary trick to support both gcc5 and gcc8 builds
if(CMAKE_C_COMPILER_VERSION VERSION_EQUAL 5.2.0)
set(GCC_NOT_5_2_0 0)
else()
set(GCC_NOT_5_2_0 1)
endif()
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 -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
)
if(CONFIG_DISABLE_GCC8_WARNINGS)
add_compile_options(
-Wno-parentheses
-Wno-sizeof-pointer-memaccess
-Wno-clobbered
)
# doesn't use GCC_NOT_5_2_0 because idf_set_global_variables was not called before
if(NOT CMAKE_C_COMPILER_VERSION VERSION_EQUAL 5.2.0)
add_compile_options(
-Wno-format-overflow
-Wno-stringop-truncation
-Wno-misleading-indentation
-Wno-cast-function-type
-Wno-implicit-fallthrough
-Wno-unused-const-variable
-Wno-switch-unreachable
-Wno-format-truncation
-Wno-memset-elt-size
-Wno-int-in-bool-context
)
endif()
endif()
# 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)
# Enable ccache if it's on the path
if(NOT CCACHE_DISABLE)
find_program(CCACHE_FOUND ccache)
if(CCACHE_FOUND)
message(STATUS "ccache will be used for faster builds")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
endif()
endif()
# Temporary trick to support both gcc5 and gcc8 builds
add_definitions(-DGCC_NOT_5_2_0=${GCC_NOT_5_2_0})
endfunction()
# 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 ${CMAKE_C_COMPILER} MATCHES xtensa))
message(FATAL_ERROR "Internal error, toolchain has not been set correctly by project "
"(or an invalid CMakeCache.txt file has been generated somehow)")
endif()
#
# Warn if the toolchain version doesn't match
#
# TODO: make these platform-specific for diff toolchains
get_expected_ctng_version(expected_toolchain expected_gcc)
gcc_version_check("${expected_gcc}")
crosstool_version_check("${expected_toolchain}")
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 ${PROJECT_NAME}.elf)
if(MAIN_SRCS)
spaces2list(MAIN_SRCS)
add_executable(${exe_target} ${MAIN_SRCS})
else()
# Create a dummy file to work around CMake requirement of having a source
# file while adding an executable
add_executable(${exe_target} "${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c")
add_custom_command(OUTPUT dummy_main_src.c
COMMAND ${CMAKE_COMMAND} -E touch dummy_main_src.c
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
VERBATIM)
add_custom_target(dummy_main_src DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c)
add_dependencies(${exe_target} dummy_main_src)
endif()
add_map_file(${exe_target})
endfunction()
# 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 ${mapfile}
)
endfunction()
# component_compile_options
#
# Wrapper around target_compile_options that passes the component name
function(component_compile_options)
target_compile_options(${COMPONENT_NAME} PRIVATE ${ARGV})
endfunction()
# component_compile_definitions
#
# Wrapper around target_compile_definitions that passes the component name
function(component_compile_definitions)
target_compile_definitions(${COMPONENT_NAME} PRIVATE ${ARGV})
endfunction()
# idf_get_git_revision
#
# Set global IDF_VER to the git revision of ESP-IDF.
#
# Running git_describe() here automatically triggers rebuilds
# if the ESP-IDF git version changes
function(idf_get_git_revision)
if(EXISTS "${IDF_PATH}/version.txt")
file(STRINGS "${IDF_PATH}/version.txt" IDF_VER)
else()
git_describe(IDF_VER "${IDF_PATH}")
endif()
add_definitions(-DIDF_VER=\"${IDF_VER}\")
git_submodule_check("${IDF_PATH}")
set(IDF_VER ${IDF_VER} PARENT_SCOPE)
endfunction()
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