esp-idf/CMakeLists.txt
Ivan Grokhotkov afeed3cc6f build system: explicitly disable LTO plugin
... to reduce the number of simultaneously open files at link time.

When plugin support is enabled in the linker, BFD's (and the
corresponding file handles) are cached for the plugin to use. This
results in quite a large number of simultaneously open files, which
hits the default limit on macOS (256 files).

Since we aren't using LTO now, disable it explicitly when invoking the
linker.

Closes IDF-923
Closes IDFGH-1764
Closes https://github.com/espressif/esp-idf/issues/3989
2019-11-28 11:02:18 +01:00

93 lines
3.5 KiB
CMake

cmake_minimum_required(VERSION 3.5)
project(esp-idf C CXX ASM)
unset(compile_options)
unset(c_compile_options)
unset(cxx_compile_options)
unset(compile_definitions)
unset(link_options)
# Add the following build specifications here, since these seem to be dependent
# on config values on the root Kconfig.
if(CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE)
list(APPEND compile_options "-Os")
list(APPEND compile_options "-freorder-blocks")
else()
list(APPEND compile_options "-Og")
endif()
if(CONFIG_COMPILER_CXX_EXCEPTIONS)
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")
endif()
if(CONFIG_COMPILER_DISABLE_GCC8_WARNINGS)
list(APPEND 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(GCC_NOT_5_2_0)
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")
endif()
endif()
if(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE)
list(APPEND compile_definitions "-DNDEBUG")
endif()
if(CONFIG_COMPILER_STACK_CHECK_MODE_NORM)
list(APPEND compile_options "-fstack-protector")
elseif(CONFIG_COMPILER_STACK_CHECK_MODE_STRONG)
list(APPEND compile_options "-fstack-protector-strong")
elseif(CONFIG_COMPILER_STACK_CHECK_MODE_ALL)
list(APPEND compile_options "-fstack-protector-all")
endif()
list(APPEND link_options "-fno-lto")
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)
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 ${dir}) # for backward compatibility only, COMPONENT_DIR is preferred
idf_build_get_property(build_prefix __PREFIX)
set(__idf_component_context 1)
if(NOT prefix STREQUAL build_prefix)
add_subdirectory(${dir} ${prefix}_${_name})
else()
add_subdirectory(${dir} ${_name})
endif()
set(__idf_component_context 0)
endforeach()