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

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

Merge ^/head r343712 through r343806.

powerpc64: Add a trap stack area

Currently, the trap code switches to the the temporary stack in the dbtrap
section. It works in most cases, but in the beginning of the execution, the
temp stack is

powerpc64: Add a trap stack area

Currently, the trap code switches to the the temporary stack in the dbtrap
section. It works in most cases, but in the beginning of the execution, the
temp stack is being used, as starting in the powerpc_init() code.

In this current scenario, the stack is being overwritten, which causes the
return of breakpoint() to take abnormal execution.

This current patchset create a small stack to use by the dbtrap: codepath
avoiding the corruption of the temporary stack.

PR: 224872
Submitted by: breno.leitao_gmail.com
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D14484

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Merge ^/head r340918 through r341763.

powerpc: Don't include KERNBASE in genassym, it's unnecessary

A related future change, which changes KERNBASE for Book-E for some reason
causes a "KERNBASE redefined" error with assym.inc, even thou

powerpc: Don't include KERNBASE in genassym, it's unnecessary

A related future change, which changes KERNBASE for Book-E for some reason
causes a "KERNBASE redefined" error with assym.inc, even though it only changed
the value of KERNBASE and nothing else. Since machine/vmparam.h is already
included in booke/locore.S, and the requisite guards are already in place for
properly handling KERNBASE in vmparam.h, just remove it from genassym, and
include vmparam.h in the AIM locore files.

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Rename assym.s to assym.inc

assym is only to be included by other .s files, and should never
actually be assembled by itself.

Reviewed by: imp, bdrewery (earlier)
Sponsored by: The FreeBSD Foundati

Rename assym.s to assym.inc

assym is only to be included by other .s files, and should never
actually be assembled by itself.

Reviewed by: imp, bdrewery (earlier)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D14180

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Use the cookie now set by loader to determine whether the value passed to
PowerPC kernels in r6 is actually metadata from loader(8) or gibberish
left in r6, which is not required to be anything under

Use the cookie now set by loader to determine whether the value passed to
PowerPC kernels in r6 is actually metadata from loader(8) or gibberish
left in r6, which is not required to be anything under the
PAPR/ePAPR/CHRP/OF standards, by another boot loader.

Note that, as a result, systems need a new boot loader to boot PPC kernels
after this revision without ending up at a mountroot prompt. New boot
loaders are backwards compatible and can boot older kernels.

Reviewed by: jhibbits
MFC after: 2 months

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MFH @r294567

MFH

Sponsored by: The FreeBSD Foundation

Merge ^/head r293430 through r293685.

Remove dead code and dead comments, most notably the implemenation of the
now-obsolete setfault(). No NetBSD code exists in the AIM locore files, so
update the copyrights there.

Merge sync of head

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Merge r278538 through r280226.

Merge from head

Merging ^/head r279596 through r279758.

Make 32-bit PowerPC kernels, like 64-bit PowerPC kernels, position-independent
executables. The goal here, not yet accomplished, is to let the e500 kernel
run under QEMU by setting KERNBASE to someth

Make 32-bit PowerPC kernels, like 64-bit PowerPC kernels, position-independent
executables. The goal here, not yet accomplished, is to let the e500 kernel
run under QEMU by setting KERNBASE to something that fits in low memory and
then having the kernel relocate itself at runtime.

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Merge from HEAD

MFH: r278202,r278205-r278590

Sponsored by: The FreeBSD Foundation

Merge ^/head r278351 through r278498.

Remove FreeBSD/wii.

This port failed to gain traction and probably only a couple Wii consoles
ran FreeBSD all the way to single user mode with an md(4). IPC
support was never implemented, so it was

Remove FreeBSD/wii.

This port failed to gain traction and probably only a couple Wii consoles
ran FreeBSD all the way to single user mode with an md(4). IPC
support was never implemented, so it was impossible to use any peripheral

Any further development, if any, will happen at https://github.com/rpaulo/wii.

Discussed with: nathanw (a long time ago), jhibbits

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Merge ^/head r277327 through r277718.

MFhead @ r277403

Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Refactor PowerPC (especially AIM) init sequence to be less baroque.

MFC after: 2 months