linux(4): Cleanup includes under arm64

No functional changes.

MFC after: 1 week

linux(4): Deduplicate mmap2

To help porting the Linux emulation layer to a new platforms start using
Linux names for conditional builds instead of architecture-specific ifdefs.

MFC after: 1 week

linux(4): Deduplicate mprotect, madvise

MFC after: 1 week

linux(4): Remove sys/cdefs.h inclusion where it's not needed due to 685dc743

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

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

sys: Remove $FreeBSD$: two-line .h pattern

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

linux(4): Make ptrace_pokeusr machine dependent

Differential Revision: https://reviews.freebsd.org/D40096
MFC after: 1 week

linux(4): Make ptrace_peekusr machine dependend

And partially implement it for x86_64.

Differential Revision: https://reviews.freebsd.org/D40095
MFC after: 1 week

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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linux(4): Cleanup vm includes from linux_util.h

Include vm headers directly where they needed. The linux_util.h included
in a most source files of the Linuxulator, avoid collecting a rarely used
inc

linux(4): Cleanup vm includes from linux_util.h

Include vm headers directly where they needed. The linux_util.h included
in a most source files of the Linuxulator, avoid collecting a rarely used
includes here.

MFC after: 2 weeks

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linux(4): Deduplicate execve

As linux_execve is common across archs, except amd64 32-bit Linuxulator,
move it under compat/linux.

Noted by: andrew@
MFC after: 2 weeks

linux: remove the always curthread argument from lconvpath

linux: Replace ifdefs in ptrace with per-architecture callbacks

It's a cleanup; no (intended) functional changes.

Sponsored By: EPSRC
Reviewed By: kib
Differential Revision: https://reviews.freebsd

linux: Replace ifdefs in ptrace with per-architecture callbacks

It's a cleanup; no (intended) functional changes.

Sponsored By: EPSRC
Reviewed By: kib
Differential Revision: https://reviews.freebsd.org/D32888

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linux: Implement linux_to_bsd_regset() on arm64

This will be used by ptrace.

Sponsored By: EPSRC

linux: Constify bsd_to_linux_regset()

No functional changes.

Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32599

Create sys/reg.h for the common code previously in machine/reg.h

Move the common kernel function signatures from machine/reg.h to a new
sys/reg.h. This is in preperation for adding PT_GETREGSET to p

Create sys/reg.h for the common code previously in machine/reg.h

Move the common kernel function signatures from machine/reg.h to a new
sys/reg.h. This is in preperation for adding PT_GETREGSET to ptrace(2).

Reviewed by: imp, markj
Sponsored by: DARPA, AFRL (original work)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19830

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linux(4): Add struct clone_args for future clone3 system call.

In preparation for clone3 system call add struct clone_args and use it in
clone implementation.
Move all of clone related bits to the n

linux(4): Add struct clone_args for future clone3 system call.

In preparation for clone3 system call add struct clone_args and use it in
clone implementation.
Move all of clone related bits to the newly created linux_fork.h header.

Differential revision: https://reviews.freebsd.org/D31474
MFC after: 2 weeks

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linux: implement sigaltstack(2) on arm64

... by making it machine-independent.

Reviewed By: dchagin
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D31286

linux: implement rt_sigsuspend(2) on arm64

... by making it architecture-independent.

Reviewed By: dchagin
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D31259

linux(4): implement coredumps on arm64

Previously they only worked on amd64.

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30975

linux: implement set_cloned_tls() on arm64

This fixes random segfaults on "git commit --amend".

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30508

linux: implement set_upcall on aarch64

This fixes "git diff" (git-1:2.25.1-1ubuntu3).

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30509

Rename linux_set_upcall_kse() to linux_set_upcall().

This matches the rename of cpu_set_upcall_kse() in
5c2cf818454375536fda522ba83cf67c50929e6b.

Reviewed by: kib, emaste
MFC after: 1 week
Sponsore

Rename linux_set_upcall_kse() to linux_set_upcall().

This matches the rename of cpu_set_upcall_kse() in
5c2cf818454375536fda522ba83cf67c50929e6b.

Reviewed by: kib, emaste
MFC after: 1 week
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D29295

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audit: also correctly audit linux_execve()

Linux execve() gets audited as AUE_EXECVE as well, we should also interpret
the return from this correctly for the same reasoning as in r367002.

MFC with:

audit: also correctly audit linux_execve()

Linux execve() gets audited as AUE_EXECVE as well, we should also interpret
the return from this correctly for the same reasoning as in r367002.

MFC with: r367002

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MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)