Mateusz Guzik 710e45c4b8 Reimplement strlen ... The previous code neglected to use primitives which can find the end of the string without having to branch on every character. While here augment the somewhat misleading commentary -- strlen as implemented here leaves performance on the table, especially so for userspace. Every arch should get a dedicated variant instead. In the meantime this commit lessens the problem. Tested with glibc test suite. Naive test just calling strlen in a loop on Haswell (ops/s): $(perl -e "print 'A' x 3"): before: 211198039 after: 338626619 $(perl -e "print 'A' x 100"): before: 83151997 after: 98285919		2021-01-29 23:48:26 +00:00
..
bcmp.3
bcmp.c
bcopy.3
bcopy.c
bstring.3
bzero.3
bzero.c
ffs.3
ffs.c
ffsl.c
ffsll.c
fls.c
flsl.c
flsll.c
index.3
Makefile.inc	Implement strerror_l().	2020-12-16 09:02:09 +00:00
memccpy.3
memccpy.c
memchr.3
memchr.c	clang-format libc string functions imported from musl	2020-11-18 22:01:34 +00:00
memcmp.3
memcmp.c
memcpy.3
memcpy.c
memmem.3
memmem.c	libc: fix undefined behavior from signed overflow in strstr and memmem	2020-11-19 00:03:15 +00:00
memmove.3
memmove.c
memrchr.c
memset_s.c
memset.3	memset.3: better fix previous typo	2020-02-08 21:17:48 +00:00
memset.c
stpcpy.c
stpncpy.c
strcasecmp.3
strcasecmp.c
strcasestr.c
strcat.3
strcat.c
strchr.3
strchr.c
strchrnul.c
strcmp.3
strcmp.c
strcoll.3
strcoll.c
strcpy.3	strcpy.3: Improve legibility and clarity	2018-06-06 20:09:21 +00:00
strcpy.c	[PPC64] strcpy optimization	2020-01-15 19:46:01 +00:00
strcspn.c
strdup.3	strdup.3: Function appeared in 4.3BSD-Reno, not 4.4BSD	2020-12-14 00:50:45 +00:00
strdup.c
strerror.3	strerror.3: Fix whitespace issue introduced in r368714	2020-12-18 22:10:17 +00:00
strerror.c	Implement strerror_l().	2020-12-16 09:02:09 +00:00
string.3
strlcat.c
strlcpy.3	libc manpages: various improvements from NetBSD	2020-06-14 05:59:30 +00:00
strlcpy.c
strlen.3
strlen.c	Reimplement strlen	2021-01-29 23:48:26 +00:00
strmode.3
strmode.c
strncat.c
strncmp.c
strncpy.c	[PPC64] strncpy optimization	2020-01-15 19:53:03 +00:00
strndup.c
strnlen.c
strnstr.c
strpbrk.3
strpbrk.c
strrchr.c
strsep.3	strsep.3: don't silently ignore errors	2018-05-28 18:29:15 +00:00
strsep.c
strsignal.c
strspn.3
strspn.c
strstr.3
strstr.c	libc: fix undefined behavior from signed overflow in strstr and memmem	2020-11-19 00:03:15 +00:00
strtok.3	strtok(3): make it easier to find the RETURN VALUES section	2020-06-22 11:03:36 +00:00
strtok.c
strxfrm.3
strxfrm.c
swab.3
swab.c
Symbol.map	Implement strerror_l().	2020-12-16 09:02:09 +00:00
timingsafe_bcmp.3
timingsafe_bcmp.c
timingsafe_memcmp.c
wcpcpy.c
wcpncpy.c
wcscasecmp.c
wcscat.c
wcschr.c
wcscmp.c
wcscoll.3
wcscoll.c
wcscpy.c
wcscspn.c
wcsdup.c
wcslcat.c
wcslcpy.c
wcslen.c
wcsncasecmp.c
wcsncat.c
wcsncmp.c
wcsncpy.c
wcsnlen.c
wcspbrk.c
wcsrchr.c
wcsspn.c
wcsstr.c
wcstok.3
wcstok.c
wcswidth.3
wcswidth.c
wcsxfrm.3
wcsxfrm.c	Fix a possible segfault in wcsxfrm(3) and wcsxfrm_l(3).	2019-08-07 20:13:43 +00:00
wmemchr.3
wmemchr.c
wmemcmp.c
wmemcpy.c
wmemmove.c
wmemset.c