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

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

linux(4): Move linux_debug decalration to linux_util.h

To avoid inclusion of linux_mib.h with linux_util.h in cases where
we need rate limiting macro.

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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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): Use inlined LINUX_KERNVER for tests to improve readability

MFC after: 1 month

linux(4): Don't relie on process osreldata when testing features

The ELF note identifyies the operating-system ABI that the executable
was created for. The note data of the Glibc executable contains

linux(4): Don't relie on process osreldata when testing features

The ELF note identifyies the operating-system ABI that the executable
was created for. The note data of the Glibc executable contains the
earliest release number of the Linux kernel that supports this ABI.
As of a current 2.37 version of Glibc, it is 3.2.0 for x86, 3.7.0
for Aarch64.
Glibc does not use this release number and the current kernel's
LINUX_VERSION_CODE to detect kernel features, using fallbacks to known
previous way in case of ENOSYS or something else instead.

A dynamically linked Glibc reads the current kernel's LINUX_VERSION_CODE
from the ELF note in the vDSO or fallback to uname syscall if the vDSO
can't be located and parse the release field in struct utsname. Glibc
uses the current kernel's LINUX_VERSION_CODE for "kernel too old" check.

While here use inlined LINUX_KERNVER for tests to improve readability,
as suggested by emaste@.

MFC after: 1 month

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linux(4): Bump osrelease to 5.15.0

Linux kernel version 5.15 named Trick or Treat is a 22nd LTS release.

Reviewed by: trasz, emaste
Differential Revision: https://reviews.freebsd.org/D39649
MFC af

linux(4): Bump osrelease to 5.15.0

Linux kernel version 5.15 named Trick or Treat is a 22nd LTS release.

Reviewed by: trasz, emaste
Differential Revision: https://reviews.freebsd.org/D39649
MFC after: 1 month

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linux(4): Export the AT_MINSIGSTKSZ depending on the process osreldata

AT_MINSIGSTKSZ has appeared in the 5.13.0 Linux kernel first time.

Differential Revision: https://reviews.freebsd.org/D39648
M

linux(4): Export the AT_MINSIGSTKSZ depending on the process osreldata

AT_MINSIGSTKSZ has appeared in the 5.13.0 Linux kernel first time.

Differential Revision: https://reviews.freebsd.org/D39648
MFC after: 1 month

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linux(4): Export the AT_EXECFN depending on the process osreldata

AT_EXECFN has appeared in the 2.6.26 Linux kernel first time.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.o

linux(4): Export the AT_EXECFN depending on the process osreldata

AT_EXECFN has appeared in the 2.6.26 Linux kernel first time.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39647
MFC after: 1 month

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linux(4): Export the AT_RANDOM depending on the process osreldata

AT_RANDOM has appeared in the 2.6.30 Linux kernel first time.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.o

linux(4): Export the AT_RANDOM depending on the process osreldata

AT_RANDOM has appeared in the 2.6.30 Linux kernel first time.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39646
MFC after: 1 month

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linux(4): Rid unused defines from linux_mib.

Reviewed by: trasz
Differential revision: https://reviews.freebsd.org/D31591
MFC after: 2 weeks

linux(4): Fixup waitid handling P_PGID idtype.

Since Linux 5.4, if id is zero, then wait for any child that is in the same
process grop as the caller's process group.

Differential revision: https:

linux(4): Fixup waitid handling P_PGID idtype.

Since Linux 5.4, if id is zero, then wait for any child that is in the same
process grop as the caller's process group.

Differential revision: https://reviews.freebsd.org/D31567
MFC after: 2 weeks

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Change the return type of sv__setid_allowed from bool to int

to please some userspace code using sys/sysent.h.

Sponsored by: The FreeBSD Foundation
MFC after: 1 week

linuxolator: Add compat.linux.setid_allowed knob

PR: 21463
Reported by: kris
Reviewed by: dchagin
Tested by: trasz
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential Revision: https

linuxolator: Add compat.linux.setid_allowed knob

PR: 21463
Reported by: kris
Reviewed by: dchagin
Tested by: trasz
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28154

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linux(4): Properly convert linux siginfo to native siginfo
add input validation.

MFC after: 2 weeks

linux(4): bump osrelease to 4.4.0.

This is required for the current Arch Linux binaries to work.

PR: 254112
Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.o

linux(4): bump osrelease to 4.4.0.

This is required for the current Arch Linux binaries to work.

PR: 254112
Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D29218

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linux: bump the default version from 3.10.0 to 3.17.0

This is required for Qt5, as found in Ubuntu Focal. The library contains
the minimum kernel version encoded in an ELF note; this makes rtld ign

linux: bump the default version from 3.10.0 to 3.17.0

This is required for Qt5, as found in Ubuntu Focal. The library contains
the minimum kernel version encoded in an ELF note; this makes rtld ignore
it altogether, with a confusing error message. Without it, things fail
like this:

$ konsole: error while loading shared libraries: libQt5Core.so.5: cannot
open shared object file: No such file or directory

For reference, the Qt kernel version requirements can be found at:
https://github.com/qt/qtbase/blob/dev/src/corelib/global/minimum-linux_p.h

Sponsored by: The FreeBSD Foundation
Reviewed By: emaste
Differential Revision: https://reviews.freebsd.org/D28105

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Add compat.linux.dummy_rlimits, and disable by default.

Turns out the dummy rlimits fix prlimit(1), but break su(8)
(login-1:4.5-1ubuntu2) - although not sudo(8), for some reason.

MFC after: 2 week

Add compat.linux.dummy_rlimits, and disable by default.

Turns out the dummy rlimits fix prlimit(1), but break su(8)
(login-1:4.5-1ubuntu2) - although not sudo(8), for some reason.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26814

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Set default stack size for Linux apps to 8MB. This matches Linux'
defaults, makes core files smaller, and fixes applications which use
pthread_join(3) in a wrong way, namely Steam.

This is based on

Set default stack size for Linux apps to 8MB. This matches Linux'
defaults, makes core files smaller, and fixes applications which use
pthread_join(3) in a wrong way, namely Steam.

This is based on a patch submitted by Jason Yang, which I've reworked
to set the limit instead of only changing the value reported (which
is enough to fix the bug for Linux pthreads, but could be confusing).

PR: 248225
Submitted by: Jason_YH_Yang at wistron.com (earlier version)
Analyzed by: Alex S <iwtcex@gmail.com>
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26778

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MFH

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

Bump the default linux version from 3.2.0 to 3.10.0, which corresponds
to RHEL 7. Required for DB2.

Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision

Bump the default linux version from 3.2.0 to 3.10.0, which corresponds
to RHEL 7. Required for DB2.

Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25656

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Add compat.linux.debug sysctl, to make it possible to silence down
the debug messages. While here, clean up some variable naming.

Reviewed by: bcr (manpages), emaste
MFC after: 2 weeks
Sponsored by:

Add compat.linux.debug sysctl, to make it possible to silence down
the debug messages. While here, clean up some variable naming.

Reviewed by: bcr (manpages), emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25230

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Make linux(4) set the openfiles soft resource limit to 1024 for Linux
applications, which often depend on this being the case. There's a new
sysctl, compat.linux.default_openfiles, to control this b

Make linux(4) set the openfiles soft resource limit to 1024 for Linux
applications, which often depend on this being the case. There's a new
sysctl, compat.linux.default_openfiles, to control this behaviour.

Reviewed by: kevans, emaste, bcr (manpages)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25177

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Merge ^/head r358466 through r358677.

Move compat.linux.map_sched_prio sysctl definition to linux_mib.c so it is
only defined by linux_common kernel module and not both linux and linux64
modules.

Reported by: Yuri Pankov <ypankov@fastma

Move compat.linux.map_sched_prio sysctl definition to linux_mib.c so it is
only defined by linux_common kernel module and not both linux and linux64
modules.

Reported by: Yuri Pankov <ypankov@fastmail.com>

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Merge ^/head r357179 through r357269.