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7 Commits

Author SHA1 Message Date
Jinliang Li d5db7d1cee libc/arm: optimize crc32/crc32c for arm 
Optimize crc32 standard(poly:0x04C11DB7) and crc32
castagnoli(poly:0x1EDC6F41) with arm crc32 extension instructions.

For example, crc32 standard caculates(lookup crc32 table) 1812 bytes data,
reduced the time from 118 us to 14 us through optimization.

Performance improved ~700%

Signed-off-by: Jinliang Li <lijinliang1@lixiang.com>
 2025-04-04 09:51:50 -03:00
Jinliang Li f3213efc7f armv8-r/libc: optimize libc string apis with asm 
Optimize libc string apis(memcpy/memset/memmove/memchr/strcmp/strlen)
with arm32 assembly instruction including vfp and neon.
Add arch releated elf parsing

Signed-off-by: Jinliang Li <lijinliang1@lixiang.com>
 2024-11-26 10:22:12 +08:00
jordi f3af6edf93 Kconfig: add quotes in source to clean warnings from setconfig 
To avoid the setconfig warning "style: quotes recommended around xxx in
source xxx"
 2021-07-23 02:32:19 -07:00
Xiang Xiao 74ab69af62 libs/libc/machine/arm: Rename armv8 to armv8-m 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-11-26 18:42:18 -03:00
Xiang Xiao edca49fb5f libc/machine/arm: Use the correct arch Kconfig for variant check 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-11-26 18:42:18 -03:00
Xiang Xiao 2f208fdde8 arch/Kconfig: Move FPU options to a common place and unify the usage by removing ARCH_CORTEXRxF. 2019-03-19 10:26:15 -06:00
Gregory Nutt cf99fb40c9 This commit moves all of the libraries under a common directory called libs/. This most certainly break libcxx and uClibc++ for now. 
Squashed commit of the following:

    libs/libxx:  Fix some confusing in naming.  If the directory is called libxx, then the library must be libxx.a (unless perhaps LIBCXX is selected).
    libs/:  Fix paths in moved library directories.
    libs:  Brute force move of libc, libnx, and libxx to libs.  Cannot yet build it in that configuration.
 2018-05-29 13:21:26 -06:00