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opnsense-src/lib/libc
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Robert Clausecker fb197a4f77 lib/libc/amd64/string: add memrchr() scalar, baseline implementation 
The scalar implementation is fairly simplistic and only performs
slightly better than the generic C implementation. It could be
improved by using the same algorithm as for memchr, but it would
have been a lot more complicated.

The baseline implementation is similar to timingsafe_memcmp.  It's
slightly slower than memchr() due to the more complicated main
loop, but I don't think that can be significantly improved.

Tested by:	developers@, exp-run
Approved by:	mjg
MFC after:	1 month
MFC to:		stable/14
PR:		275785
Differential Revision:	https://reviews.freebsd.org/D42925
2023-12-25 15:00:05 +01:00
..
aarch64 libc/*/SYS.h: remove SYCALL macro 2023-12-12 22:52:41 +00:00
amd64 lib/libc/amd64/string: add memrchr() scalar, baseline implementation 2023-12-25 15:00:05 +01:00
arm arm/SYS.h: align with other arches 2023-12-18 22:28:42 +00:00
capability capsicum: introduce cap_rights_is_empty Function 2023-12-11 12:15:46 +01:00
compat-43 lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
csu libc: Purge unneeded cdefs.h 2023-11-01 16:44:30 -06:00
db lib: Automated cleanup of cdefs and other formatting 2023-11-26 22:23:59 -07:00
gdtoa libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
gen libc: expose execvpe for Linux compat 2023-12-11 19:24:53 +00:00
gmon lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
i386 {amd64,i386}/SYS.h: add _SYSCALL and _SYSCALL_BODY 2023-12-18 22:28:42 +00:00
iconv libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
include libc: expose execvpe for Linux compat 2023-12-11 19:24:53 +00:00
inet lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
isc lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
locale lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
md Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
nameser lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
net lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
nls libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
posix1e libc: correct some memory leaks in acl_to_text(3) and acl_to_text_np(3) 2023-12-18 00:06:03 +02:00
powerpc Revert "power*/SYS.h: implement _SYSCALL_BODY() macro" 2023-12-21 21:37:09 +00:00
powerpc64 Revert "power*/SYS.h: implement _SYSCALL_BODY() macro" 2023-12-21 21:37:09 +00:00
powerpcspe libc/<arch>/sys/Makefile.inc: remove cruft 2023-11-15 17:50:53 +00:00
quad Remove copyright strings ifdef'd out 2023-11-26 22:23:58 -07:00
regex regex: mixed sets are misidentified as singletons 2023-12-22 12:19:59 +07:00
resolv lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
riscv riscv/SYS.h: implement _SYSCALL_BODY() macro 2023-12-18 22:28:42 +00:00
rpc lib: Automated cleanup of cdefs and other formatting 2023-11-26 22:23:59 -07:00
secure libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
softfloat libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
stdio lib: Automated cleanup of cdefs and other formatting 2023-11-26 22:23:59 -07:00
stdlib strfmon.c: Use the restrict keyword directly 2023-12-10 23:28:25 +02:00
stdtime Remove copyright strings ifdef'd out 2023-11-26 22:23:58 -07:00
string lib/libc/string: document restrict qualification of memccpy() arguments 2023-12-25 14:59:50 +01:00
sys Remove _POSIX_PRIORITIZED_IO references from man pages 2023-12-18 08:06:55 -07:00
tests lib/libc/tests/string: add memrchr unit tests 2023-12-25 14:59:58 +01:00
uuid libc: Remove empty comments in Symbol.map 2023-11-15 17:51:03 +00:00
x86 libc/<arch>/sys/Makefile.inc: remove cruft 2023-11-15 17:50:53 +00:00
xdr lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
yp lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
libc.ldscript Remove $FreeBSD$: one-line .c comment pattern 2023-08-16 11:54:29 -06:00
libc_nossp.ldscript Remove $FreeBSD$: one-line .c comment pattern 2023-08-16 11:54:29 -06:00
Makefile lib: Remove ancient SCCS tags. 2023-11-26 22:23:28 -07:00
Makefile.depend dirdeps: Update/fix Makefile.depend* for toolchain 2023-11-26 20:50:13 -05:00
Makefile.depend.options Remove $FreeBSD$: one-line sh pattern 2023-08-16 11:55:03 -06:00
Versions.def Create namespace for the symbols added during 15-CURRENT cycle 2023-09-22 10:16:29 +02:00