esp-idf/CMakeLists.txt

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CMake
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cmake_minimum_required(VERSION 3.5)
project(esp-idf C CXX ASM)
if(CMAKE_CURRENT_LIST_DIR STREQUAL CMAKE_SOURCE_DIR)
message(FATAL_ERROR "Current directory '${CMAKE_CURRENT_LIST_DIR}' is not buildable. "
"Change directories to one of the example projects in '${CMAKE_CURRENT_LIST_DIR}/examples' and try "
"again.")
endif()
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unset(compile_options)
unset(c_compile_options)
unset(cxx_compile_options)
unset(compile_definitions)
unset(link_options)
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# Add the following build specifications here, since these seem to be dependent
# on config values on the root Kconfig.
if(NOT BOOTLOADER_BUILD)
if(CONFIG_COMPILER_OPTIMIZATION_SIZE)
list(APPEND compile_options "-Os")
list(APPEND compile_options "-freorder-blocks")
elseif(CONFIG_COMPILER_OPTIMIZATION_DEFAULT)
list(APPEND compile_options "-Og")
elseif(CONFIG_COMPILER_OPTIMIZATION_NONE)
list(APPEND compile_options "-O0")
elseif(CONFIG_COMPILER_OPTIMIZATION_PERF)
list(APPEND compile_options "-O2")
endif()
else() # BOOTLOADER_BUILD
if(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE)
list(APPEND compile_options "-Os")
list(APPEND compile_options "-freorder-blocks")
elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_DEBUG)
list(APPEND compile_options "-Og")
elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_NONE)
list(APPEND compile_options "-O0")
elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_PERF)
list(APPEND compile_options "-O2")
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")
else()
list(APPEND cxx_compile_options "-fno-exceptions")
endif()
if(CONFIG_COMPILER_CXX_RTTI)
list(APPEND cxx_compile_options "-frtti")
else()
list(APPEND cxx_compile_options "-fno-rtti")
list(APPEND link_options "-fno-rtti") # used to invoke correct multilib variant (no-rtti) during linking
endif()
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if(CONFIG_COMPILER_DISABLE_GCC8_WARNINGS)
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list(APPEND compile_options "-Wno-parentheses"
"-Wno-sizeof-pointer-memaccess"
"-Wno-clobbered")
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list(APPEND 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")
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endif()
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if(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE)
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")
endif()
if(CONFIG_COMPILER_DUMP_RTL_FILES)
list(APPEND compile_options "-fdump-rtl-expand")
endif()
if(CONFIG_COMPILER_HIDE_PATHS_MACROS)
list(APPEND compile_options "-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.")
list(APPEND compile_options "-fmacro-prefix-map=${IDF_PATH}=IDF")
endif()
# GCC-specific options
if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
list(APPEND compile_options "-fstrict-volatile-bitfields"
"-Wno-error=unused-but-set-variable"
)
endif()
list(APPEND link_options "-fno-lto")
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idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)
idf_build_set_property(C_COMPILE_OPTIONS "${c_compile_options}" APPEND)
idf_build_set_property(CXX_COMPILE_OPTIONS "${cxx_compile_options}" APPEND)
idf_build_set_property(COMPILE_DEFINITIONS "${compile_definitions}" APPEND)
idf_build_set_property(LINK_OPTIONS "${link_options}" APPEND)
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idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
# Add each component as a subdirectory, processing each component's CMakeLists.txt
foreach(component_target ${build_component_targets})
__component_get_property(dir ${component_target} COMPONENT_DIR)
__component_get_property(_name ${component_target} COMPONENT_NAME)
__component_get_property(prefix ${component_target} __PREFIX)
__component_get_property(alias ${component_target} COMPONENT_ALIAS)
set(COMPONENT_NAME ${_name})
set(COMPONENT_DIR ${dir})
set(COMPONENT_ALIAS ${alias})
set(COMPONENT_PATH ${dir}) # for backward compatibility only, COMPONENT_DIR is preferred
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idf_build_get_property(build_prefix __PREFIX)
set(__idf_component_context 1)
if(NOT prefix STREQUAL build_prefix)
add_subdirectory(${dir} ${prefix}_${_name})
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else()
add_subdirectory(${dir} ${_name})
endif()
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set(__idf_component_context 0)
endforeach()