Commit graph

5 commits

Author SHA1 Message Date
anjiahao
bd6b226546 libs/libc/string: Use long long to speed up the BSD string functions.
Most hardware accesses the memory through a 64-bit bus, so handle the
data in 64-bit chunks instead of "long" chunks which are only 32-bit
wide on the 32-bit platforms.

* Add the libc_data_t type (unsigned long long) and move the shared
  UNALIGNED/UNALIGNED_X/ALIGNED, LITTLEBLOCKSIZE, TOO_SMALL and
  DETECTNULL helpers from the individual C files to libs/libc/libc.h.
* Convert all lib_bsd*.c implementations to the new type and macros,
  which also drops the duplicated LONG_MAX conditionals.

Assisted-by: Claude:claude-opus-5
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2026-08-17 10:47:33 +02:00
anjiahao
871a9b3261 libc_bsd:add missing SPDX-License
Just add SPDX-License, no code changes

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2026-02-04 03:02:04 +08:00
anjiahao
7c96537a58 string:use builtin function to optimize libc function
This allows the compiler to automatically identify which string functions
can be compiled into libraries, and the compiler's internal implementation
is faster than libc functions.

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2025-12-20 10:38:53 +08:00
raiden00pl
13ab107d67 libc: remove reference to non-existent readme
remove reference to non-existent readme in libc.

Pointing to the documentation page doesn't make sense in this case,
because it doesn't explain the use of `#undef XXX` for this case anyway.

Signed-off-by: raiden00pl <raiden00@railab.me>
2025-10-11 17:07:51 -04:00
yangguangcai
f07aba5c1e libc string:Separate code.
Separate the code that follows the BSD license into independent files.

Signed-off-by: yangguangcai <yangguangcai@xiaomi.com>
2024-10-23 09:49:19 +08:00