mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
272 lines
11 KiB
CMake
272 lines
11 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(esp-idf C CXX ASM)
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if(CMAKE_CURRENT_LIST_DIR STREQUAL CMAKE_SOURCE_DIR)
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message(FATAL_ERROR "Current directory '${CMAKE_CURRENT_LIST_DIR}' is not buildable. "
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"Change directories to one of the example projects in '${CMAKE_CURRENT_LIST_DIR}/examples' and try "
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"again.")
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endif()
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# Variables compile_options, c_compile_options, cxx_compile_options, compile_definitions, link_options shall
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# not be unset as they may already contain flags, set by toolchain-TARGET.cmake files.
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# Add the following build specifications here, since these seem to be dependent
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# on config values on the root Kconfig.
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if(NOT BOOTLOADER_BUILD)
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if(CONFIG_COMPILER_OPTIMIZATION_SIZE)
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list(APPEND compile_options "-Os")
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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list(APPEND compile_options "-freorder-blocks")
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endif()
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elseif(CONFIG_COMPILER_OPTIMIZATION_DEFAULT)
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list(APPEND compile_options "-Og")
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elseif(CONFIG_COMPILER_OPTIMIZATION_NONE)
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list(APPEND compile_options "-O0")
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elseif(CONFIG_COMPILER_OPTIMIZATION_PERF)
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list(APPEND compile_options "-O2")
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endif()
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else() # BOOTLOADER_BUILD
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if(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE)
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list(APPEND compile_options "-Os")
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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list(APPEND compile_options "-freorder-blocks")
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endif()
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elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_DEBUG)
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list(APPEND compile_options "-Og")
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elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_NONE)
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list(APPEND compile_options "-O0")
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elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_PERF)
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list(APPEND compile_options "-O2")
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endif()
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endif()
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if(CONFIG_COMPILER_CXX_EXCEPTIONS)
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list(APPEND cxx_compile_options "-fexceptions")
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else()
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list(APPEND cxx_compile_options "-fno-exceptions")
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endif()
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if(CONFIG_COMPILER_CXX_RTTI)
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list(APPEND cxx_compile_options "-frtti")
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else()
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list(APPEND cxx_compile_options "-fno-rtti")
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list(APPEND link_options "-fno-rtti") # used to invoke correct multilib variant (no-rtti) during linking
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endif()
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if(CONFIG_COMPILER_SAVE_RESTORE_LIBCALLS)
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list(APPEND compile_options "-msave-restore")
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endif()
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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list(APPEND c_compile_options "-Wno-old-style-declaration")
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endif()
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# Clang finds some warnings in IDF code which GCC doesn't.
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# All these warnings should be fixed before Clang is presented
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# as a toolchain choice for users.
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if(CMAKE_C_COMPILER_ID MATCHES "Clang")
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# Clang checks Doxygen comments for being in sync with function prototype.
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# There are some inconsistencies, especially in ROM headers.
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list(APPEND compile_options "-Wno-documentation")
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# GCC allows repeated typedefs when the source and target types are the same.
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# Clang doesn't allow this. This occurs in many components due to forward
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# declarations.
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list(APPEND compile_options "-Wno-typedef-redefinition")
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# This issue is seemingly related to newlib's char type functions.
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# Fix is not clear yet.
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list(APPEND compile_options "-Wno-char-subscripts")
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# Clang seems to notice format string issues which GCC doesn't.
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list(APPEND compile_options "-Wno-format-security")
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# Logic bug in essl component
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list(APPEND compile_options "-Wno-tautological-overlap-compare")
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# Some pointer checks in mDNS component check addresses which can't be NULL
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list(APPEND compile_options "-Wno-tautological-pointer-compare")
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# Similar to the above, in tcp_transport
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list(APPEND compile_options "-Wno-pointer-bool-conversion")
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# mbedTLS md5.c triggers this warning in md5_test_buf (false positive)
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list(APPEND compile_options "-Wno-string-concatenation")
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# multiple cases of implict convertions between unrelated enum types
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list(APPEND compile_options "-Wno-enum-conversion")
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# When IRAM_ATTR is specified both in function declaration and definition,
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# it produces different section names, since section names include __COUNTER__.
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# Occurs in multiple places.
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list(APPEND compile_options "-Wno-section")
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# Multiple cases of attributes unknown to clang, for example
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# __attribute__((optimize("-O3")))
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list(APPEND compile_options "-Wno-unknown-attributes")
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# Disable Clang warnings for atomic operations with access size
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# more then 4 bytes
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list(APPEND compile_options "-Wno-atomic-alignment")
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# several warnings in wpa_supplicant component
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list(APPEND compile_options "-Wno-unused-but-set-variable")
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# Clang also produces many -Wunused-function warnings which GCC doesn't.
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list(APPEND compile_options "-Wno-unused-function")
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# many warnings in bluedroid code
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# warning: field 'hdr' with variable sized type 'BT_HDR' not at the end of a struct or class is a GNU extension
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list(APPEND compile_options "-Wno-gnu-variable-sized-type-not-at-end")
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# several warnings in bluedroid code
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list(APPEND compile_options "-Wno-constant-logical-operand")
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# warning: '_Static_assert' with no message is a C2x extension
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list(APPEND compile_options "-Wno-c2x-extensions")
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# warning on xMPU_SETTINGS for esp32s2 has size 0 for C and 1 for C++
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list(APPEND compile_options "-Wno-extern-c-compat")
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# warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1
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list(APPEND compile_options "-Wno-single-bit-bitfield-constant-conversion")
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endif()
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# More warnings may exist in unit tests and example projects.
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if(CONFIG_COMPILER_WARN_WRITE_STRINGS)
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list(APPEND compile_options "-Wwrite-strings")
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endif()
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if(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE)
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list(APPEND compile_definitions "-DNDEBUG")
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endif()
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if(CONFIG_COMPILER_STACK_CHECK_MODE_NORM)
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list(APPEND compile_options "-fstack-protector")
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elseif(CONFIG_COMPILER_STACK_CHECK_MODE_STRONG)
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list(APPEND compile_options "-fstack-protector-strong")
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elseif(CONFIG_COMPILER_STACK_CHECK_MODE_ALL)
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list(APPEND compile_options "-fstack-protector-all")
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endif()
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if(CONFIG_COMPILER_DUMP_RTL_FILES)
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list(APPEND compile_options "-fdump-rtl-expand")
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endif()
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if(NOT ${CMAKE_C_COMPILER_VERSION} VERSION_LESS 8.0.0)
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if(CONFIG_COMPILER_HIDE_PATHS_MACROS)
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list(APPEND compile_options "-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.")
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list(APPEND compile_options "-fmacro-prefix-map=${IDF_PATH}=/IDF")
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endif()
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if(CONFIG_APP_REPRODUCIBLE_BUILD)
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idf_build_set_property(DEBUG_PREFIX_MAP_GDBINIT "${BUILD_DIR}/prefix_map_gdbinit")
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list(APPEND compile_options "-fdebug-prefix-map=${IDF_PATH}=/IDF")
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list(APPEND compile_options "-fdebug-prefix-map=${PROJECT_DIR}=/IDF_PROJECT")
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list(APPEND compile_options "-fdebug-prefix-map=${BUILD_DIR}=/IDF_BUILD")
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# component dirs
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idf_build_get_property(python PYTHON)
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idf_build_get_property(idf_path IDF_PATH)
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idf_build_get_property(component_dirs BUILD_COMPONENT_DIRS)
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execute_process(
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COMMAND ${python}
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"${idf_path}/tools/generate_debug_prefix_map.py"
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"${BUILD_DIR}"
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"${component_dirs}"
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OUTPUT_VARIABLE result
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RESULT_VARIABLE ret
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)
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if(NOT ret EQUAL 0)
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message(FATAL_ERROR "This is a bug. Please report to https://github.com/espressif/esp-idf/issues")
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endif()
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spaces2list(result)
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list(LENGTH component_dirs length)
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math(EXPR max_index "${length} - 1")
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foreach(index RANGE ${max_index})
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list(GET component_dirs ${index} folder)
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list(GET result ${index} after)
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list(APPEND compile_options "-fdebug-prefix-map=${folder}=${after}")
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endforeach()
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endif()
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endif()
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if(CONFIG_COMPILER_DISABLE_GCC12_WARNINGS)
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list(APPEND compile_options "-Wno-address"
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"-Wno-use-after-free")
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endif()
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# GCC-specific options
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
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list(APPEND compile_options "-fstrict-volatile-bitfields"
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)
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endif()
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if(CONFIG_ESP_SYSTEM_USE_EH_FRAME)
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list(APPEND compile_options "-fasynchronous-unwind-tables")
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list(APPEND link_options "-Wl,--eh-frame-hdr")
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endif()
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list(APPEND link_options "-fno-lto")
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if(CONFIG_IDF_TARGET_LINUX AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
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list(APPEND link_options "-Wl,-dead_strip")
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list(APPEND link_options "-Wl,-warn_commons")
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else()
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list(APPEND link_options "-Wl,--gc-sections")
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list(APPEND link_options "-Wl,--warn-common")
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endif()
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# SMP FreeRTOS user provided minimal idle hook. This allows the user to provide
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# their own copy of vApplicationMinimalIdleHook()
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if(CONFIG_FREERTOS_USE_MINIMAL_IDLE_HOOK)
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list(APPEND link_options "-Wl,--wrap=vApplicationMinimalIdleHook")
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endif()
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# Placing jump tables in flash would cause issues with code that required
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# to be placed in IRAM
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list(APPEND compile_options "-fno-jump-tables")
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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# This flag is GCC-specific.
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# Not clear yet if some other flag should be used for Clang.
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list(APPEND compile_options "-fno-tree-switch-conversion")
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endif()
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if(CMAKE_C_COMPILER_ID MATCHES "Clang")
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list(APPEND compile_options "-fno-use-cxa-atexit")
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if(CONFIG_COMPILER_RT_LIB_GCCLIB)
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list(APPEND link_options "-rtlib=libgcc")
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elseif(CONFIG_COMPILER_RT_LIB_CLANGRT)
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list(APPEND link_options "-rtlib=compiler-rt")
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endif()
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endif()
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# For the transition period from 32-bit time_t to 64-bit time_t,
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# auto-detect the size of this type and set corresponding variable.
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include(CheckTypeSize)
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check_type_size("time_t" TIME_T_SIZE)
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if(TIME_T_SIZE)
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idf_build_set_property(TIME_T_SIZE ${TIME_T_SIZE})
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else()
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message(FATAL_ERROR "Failed to determine sizeof(time_t)")
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endif()
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idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)
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idf_build_set_property(C_COMPILE_OPTIONS "${c_compile_options}" APPEND)
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idf_build_set_property(CXX_COMPILE_OPTIONS "${cxx_compile_options}" APPEND)
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idf_build_set_property(ASM_COMPILE_OPTIONS "${asm_compile_options}" APPEND)
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idf_build_set_property(COMPILE_DEFINITIONS "${compile_definitions}" APPEND)
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idf_build_set_property(LINK_OPTIONS "${link_options}" APPEND)
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idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
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# Add each component as a subdirectory, processing each component's CMakeLists.txt
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foreach(component_target ${build_component_targets})
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__component_get_property(dir ${component_target} COMPONENT_DIR)
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__component_get_property(_name ${component_target} COMPONENT_NAME)
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__component_get_property(prefix ${component_target} __PREFIX)
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__component_get_property(alias ${component_target} COMPONENT_ALIAS)
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set(COMPONENT_NAME ${_name})
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set(COMPONENT_DIR ${dir})
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set(COMPONENT_ALIAS ${alias})
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set(COMPONENT_PATH ${dir}) # for backward compatibility only, COMPONENT_DIR is preferred
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idf_build_get_property(build_prefix __PREFIX)
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set(__idf_component_context 1)
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if(NOT prefix STREQUAL build_prefix)
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add_subdirectory(${dir} ${prefix}_${_name})
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else()
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add_subdirectory(${dir} ${_name})
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endif()
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set(__idf_component_context 0)
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endforeach()
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