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opnsense-src/lib/libc/string
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Robert Clausecker ee8b0c436d lib/libc/string: replace ffs/fls implementations with clang builtins 
Most architectures we support (except for riscv64) have instructions
to compute these functions very quickly.  Replace old code with the
ffs and clz builtin functions, allowing clang to generate good code
for all architectures.

As a consequence, toss out arm and i386 ffs() implementations.

Sponsored by:	FreeBSD Foundation
Approved by:	mhorne
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D40730
2023-07-03 22:18:27 +02:00
..
bcmp.3
bcmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
bcopy.3
bcopy.c libc/string/bcopy.c: Use intptr_t as the copy type 2021-04-20 01:46:42 +01:00
bstring.3
bzero.3
bzero.c
ffs.3
ffs.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
ffsl.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
ffsll.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
fls.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
flsl.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
flsll.c lib/libc/string: replace ffs/fls implementations with clang builtins 2023-07-03 22:18:27 +02:00
index.3
Makefile.inc libc: Fix build with WITHOUT_MACHDEP_OPTIMIZATIONS=YES set. 2023-01-10 17:00:41 +03:00
memccpy.3
memccpy.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
memchr.3
memchr.c clang-format libc string functions imported from musl 2020-11-18 22:01:34 +00:00
memcmp.3
memcmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
memcpy.3 memcpy.3: remove BUGS section allowing overlapping strings 2021-08-24 09:58:10 -04:00
memcpy.c
memmem.3 Correctly spell illumos (all lowercase) in man pages 2023-06-29 13:14:45 +02:00
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
mempcpy.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
memrchr.c
memset.3 memset.3: better fix previous typo 2020-02-08 21:17:48 +00:00
memset.c libc/string/memset.c: Use unsigned long for stores 2021-04-20 01:46:43 +01:00
memset_s.c Improve standard compliance for memset_s() and abort_handler_s(). 2017-08-12 15:18:17 +00:00
stpcpy.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
stpncpy.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
strcasecmp.3
strcasecmp.c libc: drop "All rights reserved" from Foundation copyrights 2022-08-04 16:57:50 -04:00
strcasestr.c libc: drop "All rights reserved" from Foundation copyrights 2022-08-04 16:57:50 -04:00
strcat.3 libc: Add HISTORY sections to the manual pages 2022-05-05 18:46:32 +02:00
strcat.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strchr.3
strchr.c libc: Use musl's optimized strchr and strchrnul 2021-03-01 21:09:59 -05:00
strchrnul.c libc: Use musl's optimized strchr and strchrnul 2021-03-01 21:09:59 -05:00
strcmp.3 libc: Add HISTORY sections to the manual pages 2022-05-05 18:46:32 +02:00
strcmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strcoll.3
strcoll.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
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 spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
strdup.3 strdup.3: Function appeared in 4.3BSD-Reno, not 4.4BSD 2020-12-14 00:50:45 +00:00
strdup.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strerror.3 strerror.3: Fix whitespace issue introduced in r368714 2020-12-18 22:10:17 +00:00
strerror.c Remove __NO_TLS. 2021-02-23 20:08:10 +02:00
string.3
strlcat.c
strlcpy.3 Correct man page URI formatting. 2023-06-09 20:49:51 -07:00
strlcpy.c
strlen.3 libc: Add HISTORY sections to the manual pages 2022-05-05 18:46:32 +02:00
strlen.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
strmode.3
strmode.c Change strmode argument type to mode_t 2021-06-29 17:38:45 -06:00
strncat.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strncmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strncpy.c [PPC64] strncpy optimization 2020-01-15 19:53:03 +00:00
strndup.c
strnlen.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
strnstr.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strpbrk.3
strpbrk.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strrchr.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strsep.3 strsep.3: don't silently ignore errors 2018-05-28 18:29:15 +00:00
strsep.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strsignal.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strspn.3
strspn.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
strstr.3
strstr.c libc: correct SPDX tag on strstr.c 2022-01-16 11:56:28 -05:00
strtok.3 strtok(3): make it easier to find the RETURN VALUES section 2020-06-22 11:03:36 +00:00
strtok.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
strverscmp.3 libc: Add strverscmp(3) and versionsort(3) 2022-08-25 03:29:03 +03:00
strverscmp.c libc: Add strverscmp(3) and versionsort(3) 2022-08-25 03:29:03 +03:00
strxfrm.3
strxfrm.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
swab.3
swab.c Fix truncation when ssize_t is larger than MAX_INT 2023-02-04 21:14:14 -07:00
Symbol.map libc: Add strverscmp(3) and versionsort(3) 2022-08-25 03:29:03 +03:00
timingsafe_bcmp.3
timingsafe_bcmp.c
timingsafe_memcmp.c
wcpcpy.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcpncpy.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcscasecmp.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcscat.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcschr.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcscmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcscoll.3
wcscoll.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcscpy.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcscspn.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcsdup.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcslcat.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcslcpy.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcslen.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcsncasecmp.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcsncat.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcsncmp.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcsncpy.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcsnlen.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcspbrk.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcsrchr.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wcsspn.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wcsstr.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcstok.3
wcstok.c General further adoption of SPDX licensing ID tags. 2017-11-20 19:49:47 +00:00
wcswidth.3
wcswidth.c libc: drop "All rights reserved" from Foundation copyrights 2022-08-04 16:57:50 -04:00
wcsxfrm.3
wcsxfrm.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wmemchr.3 libc: add mempcpy(3) and wmempcpy(3) 2021-07-15 19:40:28 +03:00
wmemchr.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wmemcmp.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wmemcpy.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wmemmove.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
wmempcpy.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
wmemset.c libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00