2016-12-24 21:40:16 +08:00
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.. _c_library_v2:
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Standard C Library
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##################
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The kernel currently provides only the minimal subset of the standard C library
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required to meet the kernel's own needs, primarily in the areas of string
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manipulation and display.
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Applications that require a more extensive C library can either submit
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contributions that enhance the existing library or substitute with a replacement
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library.
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2017-02-28 05:15:43 +08:00
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The Zephyr SDK and other supported toolchains comes with a bare-metal C library
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2016-12-24 21:40:16 +08:00
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based on ``newlib`` that can be used with Zephyr by selecting the
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:option:`CONFIG_NEWLIB_LIBC` in the application configuration file. Part of the
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support for ``newlib`` is a set of hooks available under
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:file:`lib/libc/newlib/libc-hooks.c` which integrates the c library with basic
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kernel services.
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