56694fb4b6
Previously, this compiler flag was not being applied regardless of CONFIG_SPIRAM_CACHE_WORKAROUND setting. Explanation: add_compile_options() only applies to source files added after the function is run, or in subdirectories added after the function is run. In this case, no new source files were being added after this function was run.
262 lines
8.6 KiB
CMake
262 lines
8.6 KiB
CMake
# Some IDF-specific functions and functions
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include(crosstool_version_check)
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#
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# Set some variables used by rest of the build
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#
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# Note at the time this macro is expanded, the config is not yet
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# loaded and the toolchain and project are not yet set
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#
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macro(idf_set_global_variables)
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# Note that CONFIG_xxx is not available when this function is called
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set_default(EXTRA_COMPONENT_DIRS "")
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# Commmon components, required by every component in the build
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#
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set_default(COMPONENT_REQUIRES_COMMON "cxx esp32 newlib freertos heap log soc")
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# PROJECT_PATH has the path to the IDF project (top-level cmake directory)
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#
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# (cmake calls this CMAKE_SOURCE_DIR, keeping old name for compatibility.)
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set(PROJECT_PATH "${CMAKE_SOURCE_DIR}")
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if(MAIN_SRCS)
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message(WARNING "main is now a component, use of MAIN_SRCS is deprecated")
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set_default(COMPONENT_DIRS "${PROJECT_PATH}/components ${EXTRA_COMPONENT_DIRS} \
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${IDF_PATH}/components")
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else()
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set_default(COMPONENT_DIRS "${PROJECT_PATH}/components ${EXTRA_COMPONENT_DIRS} \
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${IDF_PATH}/components ${PROJECT_PATH}/main")
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endif()
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spaces2list(COMPONENT_DIRS)
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spaces2list(COMPONENTS)
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# Tell cmake to drop executables in the top-level build dir
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set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}")
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# path to idf.py tool
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set(IDFTOOL ${PYTHON} "${IDF_PATH}/tools/idf.py")
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# Temporary trick to support both gcc5 and gcc8 builds
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if(CMAKE_C_COMPILER_VERSION VERSION_EQUAL 5.2.0)
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set(GCC_NOT_5_2_0 0)
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else()
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set(GCC_NOT_5_2_0 1)
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endif()
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endmacro()
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# Add all the IDF global compiler & preprocessor options
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# (applied to all components). Some are config-dependent
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#
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# If you only want to set options for a particular component,
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# don't call or edit this function. TODO DESCRIBE WHAT TO DO INSTEAD
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#
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function(idf_set_global_compiler_options)
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add_definitions(-DESP_PLATFORM)
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add_definitions(-DHAVE_CONFIG_H)
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if(CONFIG_OPTIMIZATION_LEVEL_RELEASE)
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add_compile_options(-Os)
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else()
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add_compile_options(-Og)
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endif()
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# Note: the visual studio generator doesn't support this syntax
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add_compile_options("$<$<COMPILE_LANGUAGE:C>:-std=gnu99>")
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add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-std=gnu++11>")
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add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>")
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if(CONFIG_CXX_EXCEPTIONS)
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add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-fexceptions>")
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else()
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add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-fno-exceptions>")
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endif()
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# Default compiler configuration
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add_compile_options(-ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib)
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# Default warnings configuration
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add_compile_options(
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-Wall
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-Werror=all
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-Wno-error=unused-function
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-Wno-error=unused-but-set-variable
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-Wno-error=unused-variable
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-Wno-error=deprecated-declarations
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-Wextra
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-Wno-unused-parameter
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-Wno-sign-compare)
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add_compile_options("$<$<COMPILE_LANGUAGE:C>:-Wno-old-style-declaration>")
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if(CONFIG_DISABLE_GCC8_WARNINGS)
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add_compile_options(
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-Wno-parentheses
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-Wno-sizeof-pointer-memaccess
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-Wno-clobbered
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)
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# doesn't use GCC_NOT_5_2_0 because idf_set_global_variables was not called before
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if(NOT CMAKE_C_COMPILER_VERSION VERSION_EQUAL 5.2.0)
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add_compile_options(
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-Wno-format-overflow
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-Wno-stringop-truncation
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-Wno-misleading-indentation
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-Wno-cast-function-type
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-Wno-implicit-fallthrough
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-Wno-unused-const-variable
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-Wno-switch-unreachable
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-Wno-format-truncation
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-Wno-memset-elt-size
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-Wno-int-in-bool-context
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)
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endif()
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endif()
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# Stack protection
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if(NOT BOOTLOADER_BUILD)
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if(CONFIG_STACK_CHECK_NORM)
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add_compile_options(-fstack-protector)
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elseif(CONFIG_STACK_CHECK_STRONG)
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add_compile_options(-fstack-protector-strong)
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elseif(CONFIG_STACK_CHECK_ALL)
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add_compile_options(-fstack-protector-all)
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endif()
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endif()
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if(CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED)
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add_definitions(-DNDEBUG)
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endif()
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# Always generate debug symbols (even in Release mode, these don't
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# go into the final binary so have no impact on size)
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add_compile_options(-ggdb)
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# Enable ccache if it's on the path
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if(NOT CCACHE_DISABLE)
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find_program(CCACHE_FOUND ccache)
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if(CCACHE_FOUND)
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message(STATUS "ccache will be used for faster builds")
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set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
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endif()
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endif()
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# Temporary trick to support both gcc5 and gcc8 builds
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add_definitions(-DGCC_NOT_5_2_0=${GCC_NOT_5_2_0})
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endfunction()
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# Verify the IDF environment is configured correctly (environment, toolchain, etc)
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function(idf_verify_environment)
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if(NOT CMAKE_PROJECT_NAME)
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message(FATAL_ERROR "Internal error, IDF project.cmake should have set this variable already")
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endif()
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# Check toolchain is configured properly in cmake
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if(NOT ( ${CMAKE_SYSTEM_NAME} STREQUAL "Generic" AND ${CMAKE_C_COMPILER} MATCHES xtensa))
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message(FATAL_ERROR "Internal error, toolchain has not been set correctly by project "
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"(or an invalid CMakeCache.txt file has been generated somehow)")
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endif()
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#
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# Warn if the toolchain version doesn't match
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#
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# TODO: make these platform-specific for diff toolchains
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get_expected_ctng_version(expected_toolchain expected_gcc)
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gcc_version_check("${expected_gcc}")
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crosstool_version_check("${expected_toolchain}")
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endfunction()
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# idf_add_executable
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#
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# Calls add_executable to add the final project executable
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# Adds .map & .bin file targets
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# Sets up flash-related targets
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function(idf_add_executable)
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set(exe_target ${PROJECT_NAME}.elf)
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if(MAIN_SRCS)
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spaces2list(MAIN_SRCS)
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add_executable(${exe_target} ${MAIN_SRCS})
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else()
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# Create a dummy file to work around CMake requirement of having a source
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# file while adding an executable
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add_executable(${exe_target} "${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c")
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add_custom_command(OUTPUT dummy_main_src.c
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COMMAND ${CMAKE_COMMAND} -E touch dummy_main_src.c
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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VERBATIM)
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add_custom_target(dummy_main_src DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/dummy_main_src.c)
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add_dependencies(${exe_target} dummy_main_src)
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endif()
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add_map_file(${exe_target})
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endfunction()
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# add_map_file
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#
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# Set linker args for 'exe_target' to generate a linker Map file
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function(add_map_file exe_target)
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get_filename_component(basename ${exe_target} NAME_WE)
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set(mapfile "${basename}.map")
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target_link_libraries(${exe_target} "-Wl,--gc-sections -Wl,--cref -Wl,--Map=${mapfile} -Wl,--start-group")
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set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY
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ADDITIONAL_MAKE_CLEAN_FILES
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"${CMAKE_CURRENT_BINARY_DIR}/${mapfile}")
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# add size targets, depend on map file, run idf_size.py
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add_custom_target(size
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DEPENDS ${exe_target}
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COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py ${mapfile}
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)
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add_custom_target(size-files
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DEPENDS ${exe_target}
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COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py --files ${mapfile}
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)
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add_custom_target(size-components
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DEPENDS ${exe_target}
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COMMAND ${PYTHON} ${IDF_PATH}/tools/idf_size.py --archives ${mapfile}
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)
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endfunction()
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# component_compile_options
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#
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# Wrapper around target_compile_options that passes the component name
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function(component_compile_options)
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target_compile_options(${COMPONENT_NAME} PRIVATE ${ARGV})
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endfunction()
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# component_compile_definitions
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#
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# Wrapper around target_compile_definitions that passes the component name
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function(component_compile_definitions)
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target_compile_definitions(${COMPONENT_NAME} PRIVATE ${ARGV})
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endfunction()
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# idf_get_git_revision
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#
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# Set global IDF_VER to the git revision of ESP-IDF.
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#
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# Running git_describe() here automatically triggers rebuilds
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# if the ESP-IDF git version changes
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function(idf_get_git_revision)
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if(EXISTS "${IDF_PATH}/version.txt")
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file(STRINGS "${IDF_PATH}/version.txt" IDF_VER)
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else()
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git_describe(IDF_VER "${IDF_PATH}")
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endif()
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add_definitions(-DIDF_VER=\"${IDF_VER}\")
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git_submodule_check("${IDF_PATH}")
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set(IDF_VER ${IDF_VER} PARENT_SCOPE)
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endfunction()
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