src/sys/arm/include, branch main

Revert "pcb.h: mark struct pcb to be preserved"

2026-02-09T18:55:57Z

kgdb only uses the marked fields from dumppcb for initial frame reconstruction. This reverts commit 8f23665fed2fbaf4481359b4d2fcdd7b9feb40e3.

pcb.h: mark struct pcb to be preserved

2026-02-09T04:17:16Z

There are programs that depend on this structure (e.g. kernel debuggers) that breaks when the ABI changes. Signed-off-by: Minsoo Choo Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D55149

STACKALIGN: Reimplement in terms of __align_down

2026-02-06T15:30:50Z

This changes STACKALIGN to be type-preserving when operating on pointers. Reviewed by: brooks, kib Effort: CHERI upstreaming Sponsored by: AFRL, DARPA Differential Revision: https://reviews.freebsd.org/D54920

arm: Implement kernel ifunc

2026-02-01T08:17:43Z

Add kernel ifunc support on arm. MFC after : 3 weeks Reviewed by: kib (previous version) Differential Revision: https://reviews.freebsd.org/D54970

arm, riscv: add a preprocessor symbol indicating missed support of ifunc

2026-01-29T18:11:54Z

in kernel. Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54831

arm: Make init_proc0 static

2026-01-27T18:30:23Z

This function is not used outside of machdep.c and is already static on arm64 and riscv. Reviewed by: imp Effort: CHERI upstreaming Sponsored by: AFRL, DARPA Differential Revision: https://reviews.freebsd.org/D54838

Add sys/_align.h replacing machine/_align.h

2025-12-10T10:57:50Z

Define _ALIGNBYTES using sizeof(void *) (no functional change on any existing architecture) which will allow it to work with CHERI were we must align things up to capability alignment. In _ALIGN, replace integer manipulation which does not preserve pointer provenance with a type and provenance preserving builtin. This requires modest changes in code which assumes _ALIGN returns an integer, but those are relatively rare. Reviewed by: kib, markj Effort: CHERI upstreaming Sponsored by: Innovate UK Differential Revision: https://reviews.freebsd.org/D53947

armv7: Tweak some armv6 removals

2025-12-03T05:29:42Z

Fixes: 42421307b115 (sys: remove armv6/6.1 support from debug monitor) Suggested by: jhb Sponsored by: Netflix

sys/stdint.h: add C23 _WIDTH macros

2025-11-30T19:21:51Z

The platform-dependent macros are added to the various _stdint.h headers, those that are always the same are added directly to _stdint.h. We may want to move the definitions for WCHAR_* and WINT_* out of the platform header files as those are always the same. Approved by: markj (mentor) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D53830

sys/limits.h: add C23 _WIDTH macros

2025-11-30T19:21:47Z

For compliance with IOS/IEC 9899:2024 ("C23"). These macros define the width in bits of the basic integer types. Another new macro, BITINT_MAXWIDTH, is not yet included as I do not understand what it should be set to. Perhaps it is compiler-specific. Approved by: markj (mentor) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D53825