22514c1dd9
Removes the need to know/guess the paths to these libraries. Once we are gcc 8 only, we can remove -nostdlib and no additional arguments are needed for system libraries. The catch is: any time IDF overrides a symbol in the toolchain sysroot, we need an undefined linker marker to make sure this symbol is seen by linker.
63 lines
2.2 KiB
CMake
63 lines
2.2 KiB
CMake
set(COMPONENT_SRCS "heap.c"
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"locks.c"
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"poll.c"
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"pthread.c"
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"random.c"
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"reent_init.c"
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"select.c"
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"syscall_table.c"
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"syscalls.c"
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"termios.c"
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"time.c"
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"utime.c")
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set(COMPONENT_ADD_INCLUDEDIRS platform_include)
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if(GCC_NOT_5_2_0)
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if(CONFIG_SPIRAM_CACHE_WORKAROUND)
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set(COMPONENT_ADD_LDFRAGMENTS esp32-spiram-rom-functions-c.lf)
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endif()
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# Forces the linker to include locks, heap, and syscalls from this component,
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# instead of the implementations provided by newlib.
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set(EXTRA_LINK_FLAGS "-u newlib_include_locks_impl")
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list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_heap_impl")
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list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_syscalls_impl")
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list(APPEND EXTRA_LINK_FLAGS "-u newlib_include_pthread_impl")
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else()
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# Remove this section when GCC 5.2.0 is no longer supported
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# 'include' and 'lib' directories should also be removed.
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# An if statement about LIB_PATH below should also be removed.
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list(APPEND COMPONENT_ADD_INCLUDEDIRS include)
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set(LIB_PATH ${CMAKE_CURRENT_SOURCE_DIR}/lib)
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if(CONFIG_SPIRAM_CACHE_WORKAROUND)
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set(COMPONENT_ADD_LDFRAGMENTS esp32-spiram-rom-functions-psram-workaround.lf)
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endif()
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endif()
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set(COMPONENT_REQUIRES vfs) # for sys/ioctl.h
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set(COMPONENT_PRIV_REQUIRES soc)
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list(APPEND COMPONENT_ADD_LDFRAGMENTS newlib.lf)
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register_component()
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if (LIB_PATH)
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target_link_libraries(${COMPONENT_LIB} "-L ${LIB_PATH}")
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endif()
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if(GCC_NOT_5_2_0)
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# Toolchain libraries require code defined in this component
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add_library(extra INTERFACE)
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idf_component_get_property(newlib newlib COMPONENT_LIB)
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target_link_libraries(extra INTERFACE ${LIBC} ${LIBM} gcc "$<TARGET_FILE:${newlib}>")
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target_link_libraries(${COMPONENT_LIB} extra)
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else()
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target_link_libraries(${COMPONENT_LIB} ${LIBC} ${LIBM} gcc)
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endif()
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set_source_files_properties(heap.c PROPERTIES COMPILE_FLAGS -fno-builtin)
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if(EXTRA_LINK_FLAGS)
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target_link_libraries(${COMPONENT_LIB} "${EXTRA_LINK_FLAGS}")
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endif()
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