src/lib/libc/string/Makefile.inc, branch release/14.3.0

Remove $FreeBSD$: one-line sh pattern

2023-08-16T17:55:03Z

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

libc: Fix build with WITHOUT_MACHDEP_OPTIMIZATIONS=YES set.

2023-01-10T14:00:41Z

Test Plan: `make buildword WITHOUT_MACHDEP_OPTIMIZATIONS=YES` on 14-CURRENT and 13-STABLE Reviewed by: emaste Differential Revision: https://reviews.freebsd.org/D38017 PR: 266900

libc: Add strverscmp(3) and versionsort(3)

2022-08-25T00:29:03Z

Add a strverscmp(3) function to libc, a GNU extension I implemented by reading its glibc manual page. It orders strings following a much more natural ordering (e.g. "ent1 < ent2 < ent10" as opposed to "ent1 < ent10 < ent2" with strcmp(3)'s lexicographic ordering). Also add versionsort(3) for use as scandir(3)'s compar argument. Update manual page for scandir(3) and add one for strverscmp(3). Reviewed by: pstef, gbe, kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D35807

libc: Disable ASAN for certain string functions

2021-08-02T13:33:24Z

They deliberately read out-of-bounds values to avoid byte-by-byte loads and check multiple bytes at once. While this will work on x86, it is flagged as an out-of-bounds read with ASAN, so we have to disable instrumentation here. This also causes bounds errors for CHERI, so in CheriBSD we use implementations that avoid OOB reads. Differential Revision: https://reviews.freebsd.org/D31045

libc: add mempcpy(3) and wmempcpy(3)

2021-07-15T16:40:28Z

Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D31180

Implement strerror_l().

2020-12-16T09:02:09Z

Only for the arches that provide user-mode TLS. PR: 251651 Requested by: yuri Discussed with: emaste, jilles, tijl Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D27495 MFC after: 2 weeks

Document memset_s(3). memset_s(3) is defined in

2018-02-16T05:48:45Z

C11 standard (ISO/IEC 9899:2011) K.3.7.4.1 The memset_s function (p: 621-622) Fix memset(3) portion of the man page by replacing the first argument (destination) "b" with "dest", which is more descriptive than "b". This also makes it consistent with the term used in the memset_s() portion of the man page. See also http://en.cppreference.com/w/c/string/byte/memset. Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D13682

Implement the memset_s(3) function as specified by the C11 ISO/IEC

2017-03-30T04:57:26Z

9899:2011 Appendix K 3.7.4.1. Other needed supporting types, defines and constraint_handler infrastructure is added as specified in the C11 spec. Submitted by: Tom Rix Sponsored by: Juniper Networks Discussed with: ed MFC after: 3 weeks Differential revision: https://reviews.freebsd.org/D9903 Differential revision: https://reviews.freebsd.org/D10161

Replace dot-dot relative pathing with SRCTOP-relative paths where possible

2017-01-20T03:23:24Z

This reduces build output, need for recalculating paths, and makes it clearer which paths are relative to what areas in the source tree. The change in performance over a locally mounted UFS filesystem was negligible in my testing, but this may more positively impact other filesystems like NFS. LIBC_SRCTOP was left alone so Juniper (and other users) can continue to manipulate lib/libc/Makefile (and other Makefile.inc's under lib/libc) as include Makefiles with custom options. Discussed with: marcel, sjg MFC after: 1 week Reviewed by: emaste Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D9207

Add timingsafe_bcmp and timingsafe_memcmp.

2016-08-14T23:38:50Z

Obtained from: OpenBSD Reviewed by: trasz MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D7280