src/include, branch releng/14.0

include: Implement N2867.

2023-09-07T20:28:31Z

This adds macros for checked addition, subtraction, and multiplication with semantics similar to the builtins gcc and clang have had for years. Reviewed by: kib, emaste Differential Revision: https://reviews.freebsd.org/D41734 (cherry picked from commit e6615b10347caf67f5bc12c9a8e30b8ddd9860ae) include: Add tests for N2867. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D41735 (cherry picked from commit 4fbb9c43aa44d9145151bb5f77d302ba01fb7551) less: We have now. Reviewed by: delphij Differential Revision: https://reviews.freebsd.org/D41736 (cherry picked from commit cb8dd292c7ec53391dfa25847858dd7ef895f94e) Approved by: re (gjb)

time.h: Fix visibility check for C11 and C23 features.

2023-09-07T20:28:31Z

__BSD_VISIBLE is always defined; we need to check if it's true. Fixes: d02489d11aed 9b5d724cad10 MFC after: 3 days Reviewed by: brooks, imp Differential Revision: https://reviews.freebsd.org/D41733 (cherry picked from commit 8091b82e291642f3034dc3fdc8689a4f4ba027da) Approved by: re (gjb)

libc: Add timespec_getres(3) as per C23.

2023-08-24T21:31:54Z

This also adds support for TIME_MONOTONIC to timespec_get(3). Reviewed by: allanjude Differential Revision: https://reviews.freebsd.org/D41524

Remove $FreeBSD$: one-line xdr pattern

2023-08-16T17:55:47Z

Remove /^\s*%\s*__FBSDID$"\$FreeBSD\$"$;?\s*\n/

Remove $FreeBSD$: one-line sh pattern

2023-08-16T17:55:03Z

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

Remove $FreeBSD$: one-line .c comment pattern

2023-08-16T17:54:29Z

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

Remove $FreeBSD$: one-line .h pattern

2023-08-16T17:54:23Z

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

Remove $FreeBSD$: two-line .h pattern

2023-08-16T17:54:16Z

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

arm64 lib32: prepare arm64 headers to redirect to arm

2023-07-25T23:59:26Z

In order to compile lib32 libraries and other 32-bit code on arm64, needs to be redirected to an arm header rather than arm64 when building with -m32. Ifdef the arm64 headers that are installed in /usr/include/machine and used by user-level software (including references from /usr/include/*.h) so that if __arm__ is defined when including the arm64 version, is included rather than using the rest of the file's contents. Some arm headers had no arm64 equivalent; headers were added just to do the redirection. These files use #error if __arm__ is not defined to guard against confusion. Also add an include/arm Makefile, and modify Makefiles as needed to install everything, including the arm files in /usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h. The new arm64 headers are: acle-compat.h cpuinfo.h sysreg.h Reviewed by: jrtc27, imp Differential Revision: https://reviews.freebsd.org/D40944

include: Migrate from COMPAT_32BIT to generic COMPAT_libcompat

2023-07-09T17:48:54Z

See commit 8fad2cda93c7 ("bsd.compat.mk: Provide new CPP and sub-make variables") for the context behind this change. Reviewed by: emaste, brooks, jhb Differential Revision: https://reviews.freebsd.org/D40924