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