[libc] Update configure.rst after config.json modification (#71942)

The update is automatically generated from `config/config.json`.
This commit is contained in:
Guillaume Chatelet
2023-11-10 16:45:36 +01:00
committed by GitHub
parent c1d5865a31
commit c07f73e754

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@@ -31,4 +31,5 @@ to learn about the defaults for your platform and target.
- ``LIBC_CONF_PRINTF_DISABLE_WRITE_INT``: Disable handling of %n in printf format string.
- ``LIBC_CONF_PRINTF_FLOAT_TO_STR_USE_MEGA_LONG_DOUBLE_TABLE``: Use large table for better printf long double performance.
* **"string" options**
- ``LIBC_CONF_MEMSET_X86_USE_SOFTWARE_PREFETCHING``: Inserts prefetch for write instructions (PREFETCHW) for memset on x86 to recover performance when hardware prefetcher is disabled.
- ``LIBC_CONF_STRING_UNSAFE_WIDE_READ``: Read more than a byte at a time to perform byte-string operations like strlen.