CVS commit: src/lib/libc/arch/powerpc/string

["Rin Okuyama" <rin%netbsd.org@localhost>]

Module Name:    src
Committed By:   rin
Date:           Mon May 30 14:43:37 UTC 2022

Modified Files:
        src/lib/libc/arch/powerpc/string: Makefile.inc

Log Message:
Obsolete hack for evbppc to replace memcmp(9), memcpy(9), and memmove(9)
with strictly-aligned versions.

Now all 32-bit powerpc ports share the same libc binary.

This change together with the preceding similar change in libkern slightly
improve performance for DHT (ibm4xx/405GP) and RB800 (MPC8533E).

See changes in bytebench scores:

- DHT   https://gist.github.com/rokuyama/301063355de9733bea515b84ef574c0a
- RB800 https://gist.github.com/rokuyama/60ad665d367d6d110b79ec44707f39ff

Improvements may be negligible, but this does not cause performance
regressions at least.

This hack was for 403, but unaligned memory access is now emulated by
kernel. This should result in serious performance regression for 403.
We will provide strictly-aligned versions by ld.so.conf.


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/lib/libc/arch/powerpc/string/Makefile.inc

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.