linux: add sysctl to pass untranslated interface names

Reviewed by: kib
Approved by: re(gjb)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33792

(cherry picked from comm

linux: add sysctl to pass untranslated interface names

Reviewed by: kib
Approved by: re(gjb)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33792

(cherry picked from commit 1f70a85b4cbc3ad19cec4a390e8754e54815be85)
(cherry picked from commit c7655e1f3671a9ce7d963cb577b4548173469053)

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linux: fix linux_recvmsg() MSG_PEEK flag handling

Reviewed by: kib
Approved by: re(gjb)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33790

(cherry picked from commit 96

linux: fix linux_recvmsg() MSG_PEEK flag handling

Reviewed by: kib
Approved by: re(gjb)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33790

(cherry picked from commit 96c524d8b2c9abe3927abf948fbbd73a7cb42c4a)
(cherry picked from commit 0b6161db7eff92a37bc6d410ff9c9d5c3ac6f443)

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linux: Fix ptrace panic with ERESTART

Translate ERESTART into Linux "internal" errno ERESTARTSYS.
This fixes the erestartsys.gen.test from strace(1).

Reviewed By: kib
Sponsored By: EPSRC
Differenti

linux: Fix ptrace panic with ERESTART

Translate ERESTART into Linux "internal" errno ERESTARTSYS.
This fixes the erestartsys.gen.test from strace(1).

Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32623

(cherry picked from commit 6547153e4618c3b57e5f76062de006a04ecbd64b)

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linux: Make compat.linux.preserve_vstatus default to 1

From a user point of view, this makes ^T work out of the box.

Reviewed By: debdrup (man page)
Sponsored By: EPSRC
Differential Revision: https

linux: Make compat.linux.preserve_vstatus default to 1

From a user point of view, this makes ^T work out of the box.

Reviewed By: debdrup (man page)
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D33842

(cherry picked from commit b896bdb86d832d07ae397b340a56beb1a14ff980)

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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

(cherry pic

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

(cherry picked from commit 72f7ddb587a79dbea353e40b182ea93bb1dfea21)

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linux(4): Improve comment about SA_RESTORER

No functional changes.

Sponsored By: EPSRC

(cherry picked from commit 3eaf271d3c0e4fa18b74971a71c950fd43fa4189)

linux(4): implement PR_SET_NO_NEW_PRIVS

This makes prctl(2) support PR_SET_NO_NEW_PRIVS, by mapping it
to the native PROC_NO_NEW_PRIVS_CTL procctl(2).

Sponsored By: EPSRC
Differential Revision: htt

linux(4): implement PR_SET_NO_NEW_PRIVS

This makes prctl(2) support PR_SET_NO_NEW_PRIVS, by mapping it
to the native PROC_NO_NEW_PRIVS_CTL procctl(2).

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30973

(cherry picked from commit 2f514e6f13de41aa9ad5f563ed0decc66e91f99c)

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linux: implement statx(2)

PR: 252106
Reviewed By: dchagin
Differential Revision: https://reviews.freebsd.org/D30466

(cherry picked from commit 2362ad457a01d56d87e74823599578ab37bdbfb9)

linux: add support for SO_PEERGROUPS

The su(8) and sudo(8) from Ubuntu Bionic use it.

Sponsored By: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28165

(cherry picked

linux: add support for SO_PEERGROUPS

The su(8) and sudo(8) from Ubuntu Bionic use it.

Sponsored By: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28165

(cherry picked from commit cd84c82c6ad73c804b828bad9caec176e41ab79d)

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linux: remove locks around callout_drain in timerfd_close()

The lock around callout_drain() is unnecessary and may cause
deadlock when one closes a timer descriptor during timer execution.

Reviewed

linux: remove locks around callout_drain in timerfd_close()

The lock around callout_drain() is unnecessary and may cause
deadlock when one closes a timer descriptor during timer execution.

Reviewed By: delphij
Submitted By: ankohuu_outlook.com (Shunchao Hu)
Differential Revision: https://reviews.freebsd.org/D28148

(cherry picked from commit 14c40d2c292deff44be5591add7fdad5f9b371aa)

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linux: Improve debugging by recognizing TIOCGPTPEER

Sponsored By: EPSRC

(cherry picked from commit 1866c766d2c520faaedbfe98d2e34a95f54053a5)

linux: Also translate the signal if the code is CLD_KILLED

This fixes ./waitid.gen.test from the strace(1) test suite.

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

linux: Also translate the signal if the code is CLD_KILLED

This fixes ./waitid.gen.test from the strace(1) test suite.

Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32617

(cherry picked from commit c8c93b151678b57d86cd50509c9cbb863bbe9e57)

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linux: Fix ENOTSOCK handling in sendfile(2)

The Linux way for sendfile(2) to tell the application
to fallback to another way of copying data is by EINVAL,
not ENOTSOCK. This fixes package installat

linux: Fix ENOTSOCK handling in sendfile(2)

The Linux way for sendfile(2) to tell the application
to fallback to another way of copying data is by EINVAL,
not ENOTSOCK. This fixes package installation scripts
for Mono packages from Focal.

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32604

(cherry picked from commit 2c7f7982825442c851e8bb17555a086a232ef4d9)

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linux: recognize TCP_INFO and ratelimit the warning

This ratelimits the "unsupported getsockopt level 6 optname 11"
warnings that happen all the time when watching Netflix.

Sponsored By: EPSRC
Diff

linux: recognize TCP_INFO and ratelimit the warning

This ratelimits the "unsupported getsockopt level 6 optname 11"
warnings that happen all the time when watching Netflix.

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32454

(cherry picked from commit 99f563ed76f49c541e587a2f81bc43c62c86c0e5)

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linux: Partially implement TCSBRK

This fixes tcflush(3), unbreaking cheribuild.py under arm64 Focal.

Reviewed By: imp
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32291

linux: Partially implement TCSBRK

This fixes tcflush(3), unbreaking cheribuild.py under arm64 Focal.

Reviewed By: imp
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32291

(cherry picked from commit 7e7859e7c2b900fd1b1af6e90ed31d51b9b5514d)

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linux: improve FUSE support

This fixes a number of AppImages; tested with
scribus-1.5.6.1-linux-x86_64.AppImage.

Reported By: @probonopd
Reviewed By: asomers, emaste
Sponsored By: EPSRC
Differentia

linux: improve FUSE support

This fixes a number of AppImages; tested with
scribus-1.5.6.1-linux-x86_64.AppImage.

Reported By: @probonopd
Reviewed By: asomers, emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30606

(cherry picked from commit 128a1db806daac088a79314cee060b8a204e8481)

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linux: deduplicate DUMMY() entries

No functional changes.

Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30524

(cherry picked from commit 83043a741d114

linux: deduplicate DUMMY() entries

No functional changes.

Reviewed By: emaste
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30524

(cherry picked from commit 83043a741d114d7fd4a018e9c70330036ae44f81)

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linux: add new syscall numbers

Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30193

(cherry picked from commit 6d926e850d22c5c563571561c446c3c0dec16143)

linux: support AT_EMPTY_PATH flag in fchownat(2)

This fixes rsyslog package installation scripts in Bionic.

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

linux: support AT_EMPTY_PATH flag in fchownat(2)

This fixes rsyslog package installation scripts in Bionic.

Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D29108

(cherry picked from commit e47823b8312b7cb61c5c8cb8e1eb981994e3a0b4)

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linux: make fstatat(2) handle AT_EMPTY_PATH

Without it, Qt5 apps from Focal fail to start, being unable to load
their plugins. It's also necessary for glibc 2.33, as found in recent
Arch snapshots.

linux: make fstatat(2) handle AT_EMPTY_PATH

Without it, Qt5 apps from Focal fail to start, being unable to load
their plugins. It's also necessary for glibc 2.33, as found in recent
Arch snapshots.

PR: 254112
Reviewed By: kib
Sponsored by: The FreeBSD Foundation, EPSRC
Differential Revision: https://reviews.freebsd.org/D28192

(cherry picked from commit 4b45c2bb83a1d7aded0c424d65595cc576760dc7)

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linux: implement O_PATH

Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D29773

(cherry picked from commit 1663120ae452fe3783c74ce40522caf0e2327608)

linux: extend the LINUX_O_ constants to make room for O_PATH

No functional changes.

Sponsored By: EPSRC

(cherry picked from commit 1b11173c00d84d4a25cc8aa3c6c69cc15696b0ec)

linux: adjust ordering of Linux auxv and add dummy AT_HWCAP2

This should be a no-op; the purpose of this is to reduce
a spurious difference between Linuxulator and Linux, to make
debugging core dump

linux: adjust ordering of Linux auxv and add dummy AT_HWCAP2

This should be a no-op; the purpose of this is to reduce
a spurious difference between Linuxulator and Linux, to make
debugging core dumps slightly easier.

Note that AT_HWCAP2 we pass to Linux binaries is always 0,
instead of being equal to 'cpu_feature2'. This matches what
I've observed under Ubuntu Focal VM.

Reviewed By: chuck, dchagin
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D29609

(cherry picked from commit ca6e1fa3ce87f56847633530cb94a6fb63405680)

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Use vmspace->vm_stacktop in place of sv_usrstack in more places.

Reviewed by: markj
Obtained from: CheriBSD

(cherry picked from commit becaf6433be4a7c86e8053d42f399176c24d76b6)