esp-idf/components/newlib/CMakeLists.txt

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2.4 KiB
CMake

if(BOOTLOADER_BUILD)
# Bootloader builds need the platform_include directory (for assert.h), but nothing else
idf_component_register(INCLUDE_DIRS platform_include)
return()
endif()
set(srcs
"abort.c"
"assert.c"
"heap.c"
"locks.c"
"poll.c"
"pthread.c"
"random.c"
"reent_init.c"
"newlib_init.c"
"syscalls.c"
"termios.c"
"stdatomic.c"
"time.c"
"sysconf.c"
"realpath.c")
set(include_dirs platform_include)
if(CONFIG_SPIRAM_CACHE_WORKAROUND)
set(ldfragments "esp32-spiram-rom-functions-c.lf")
endif()
list(APPEND ldfragments "newlib.lf" "system_libs.lf")
idf_component_register(SRCS "${srcs}"
INCLUDE_DIRS "${include_dirs}"
PRIV_INCLUDE_DIRS priv_include
PRIV_REQUIRES soc spi_flash
LDFRAGMENTS "${ldfragments}")
# Toolchain libraries require code defined in this component
idf_component_get_property(newlib newlib COMPONENT_LIB)
target_link_libraries(${COMPONENT_LIB} INTERFACE c m gcc "$<TARGET_FILE:${newlib}>")
set_source_files_properties(heap.c PROPERTIES COMPILE_FLAGS -fno-builtin)
# Forces the linker to include heap, syscall, pthread, assert, and retargetable locks from this component,
# instead of the implementations provided by newlib.
list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_heap_impl")
list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_syscalls_impl")
list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_pthread_impl")
list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_assert_impl")
target_link_libraries(${COMPONENT_LIB} INTERFACE "${EXTRA_LINK_FLAGS}")
if(CONFIG_NEWLIB_NANO_FORMAT)
if(CMAKE_C_COMPILER_ID MATCHES "Clang")
set(libc_dir_cmd ${CMAKE_C_COMPILER})
string(REPLACE " " ";" cflags_list ${CMAKE_C_FLAGS})
list(APPEND libc_dir_cmd ${cflags_list} "-print-file-name=libc.a")
execute_process(
COMMAND ${libc_dir_cmd}
OUTPUT_VARIABLE libc_dir
)
get_filename_component(libc_dir ${libc_dir} DIRECTORY)
target_link_directories(${COMPONENT_LIB} INTERFACE "${libc_dir}/nano")
else()
target_link_libraries(${COMPONENT_LIB} INTERFACE "--specs=nano.specs")
endif()
endif()
add_subdirectory(port)
# if lwip is included in the build, add it as a public requirement so that
# #include <sys/socket.h> works without any special provisions.
idf_component_optional_requires(PUBLIC lwip)