linux: add new syscall numbers

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

(cherry picked from commit 6d926e850d22c5c563571561c446c3c0dec16143)

linux(4): Implement name_to_handle_at(), open_by_handle_at()

They are similar to our getfhat(2) and fhopen(2) syscalls.

Differential Revision: https://reviews.freebsd.org/D27111

Add a trivial linux(4) splice(2) implementation, which simply
returns EINVAL. Fixes grep (grep-3.1-2build1).

PR: kern/218699
Reported by: avos
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by:

Add a trivial linux(4) splice(2) implementation, which simply
returns EINVAL. Fixes grep (grep-3.1-2build1).

PR: kern/218699
Reported by: avos
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25636

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Add proper types for linux message queue syscalls; mostly taken
from 32-bit Linuxulator.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D2

Add proper types for linux message queue syscalls; mostly taken
from 32-bit Linuxulator.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25386

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Add syscall definitions for linux xattr syscalls.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25387

Adapt linuxulator syscalls.master files to the new layout.
No functional changes.

Reviewed by: brooks
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.f

Adapt linuxulator syscalls.master files to the new layout.
No functional changes.

Reviewed by: brooks
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25381

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Add linux_madvise(2) instead of having Linux apps call the native
FreeBSD madvise(2) directly. While some of the flag values match,
most don't.

PR: kern/230160
Reported by: markj
Reviewed by: mark

Add linux_madvise(2) instead of having Linux apps call the native
FreeBSD madvise(2) directly. While some of the flag values match,
most don't.

PR: kern/230160
Reported by: markj
Reviewed by: markj
Discussed with: brooks, kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25272

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linuxulator: implement sendfile

Submitted by: Bora Özarslan <[email protected]>
Submitted by: Yang Wang <[email protected]>
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential

linuxulator: implement sendfile

Submitted by: Bora Özarslan <[email protected]>
Submitted by: Yang Wang <[email protected]>
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19917

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Fix 64-bit syscall argument fetching in 32-bit Linux syscall handlers.

The Linux32 system call argument fetcher places each argument (passed in
registers in the Linux x86 system call convention) int

Fix 64-bit syscall argument fetching in 32-bit Linux syscall handlers.

The Linux32 system call argument fetcher places each argument (passed in
registers in the Linux x86 system call convention) into an entry in the
generic system call args array. Each member of this array is 8 bytes
wide, so this approach is broken for system calls that take off_t
arguments.

Fix the problem by splitting l_loff_t arguments in the 32-bit system
call descriptions, the same as we do for FreeBSD32. Change entry points
to handle this using the PAIR32TO64 macro.

Move linux_ftruncate64() into compat/linux.

PR: 243155
Reported by: Alex S <[email protected]>
Reviewed by: kib (previous version)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23210

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Fix definitions for Linux getcpu(2).

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Fix definitions for linuxulator's sync_file_range(2).

Reviewed by: brooks, emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D22371

make linux_renameat2 args consistent with linux_renameat

Use 'dfd' consistently for a directory fd.

Since r339624 HEAD does not need for backslashes in syscalls.master,
however to make a merge r345471 to the stable add backslashes
to the syscalls.master.

MFC after: 3 days

Update syscall.master to 5.0.

For 32-bit Linuxulator, ipc() syscall was historically
the entry point for the IPC API. Starting in Linux 4.18, direct
syscalls are provided for the IPC. Enable it.

MF

Update syscall.master to 5.0.

For 32-bit Linuxulator, ipc() syscall was historically
the entry point for the IPC API. Starting in Linux 4.18, direct
syscalls are provided for the IPC. Enable it.

MFC after: 1 month

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Linux between 4.18 and 5.0 split IPC system calls.
In preparation for doing this in the Linuxulator modify our linux_shmat()
to match actual Linux shmat() system call.

MFC after: 1 month

Move most of the contents of opt_compat.h to opt_global.h.

opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
close

Move most of the contents of opt_compat.h to opt_global.h.

opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
closer to "just about everywhere" than "only some files" per the
guidance in sys/conf/options.

Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of
sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h
is created on all architectures.

Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the
set of compiled files.

Reviewed by: kib, cem, jhb, jtl
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14941

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Correct pseudo misspelling in sys/ comments

contrib code and #define in intel_ata.h unchanged.

Correct proper nouns in the Linuxulator

- Capitalize Linux
- Spell FreeBSD out in full
- Address some style(9) on changed lines

Sponsored by: Turing Robotic Industries Inc.

Linuxolator whitespace cleanup

A version of each of the MD files by necessity exists for each CPU
architecture supported by the Linuxolator. Clean these up so that new
architectures do not inherit

Linuxolator whitespace cleanup

A version of each of the MD files by necessity exists for each CPU
architecture supported by the Linuxolator. Clean these up so that new
architectures do not inherit whitespace issues.

Clean up shared Linuxolator files while here.

Sponsored by: Turing Robotic Industries Inc.

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Disable vim syntax highlighting.

Vim's default pick doesn't understand that ';' is a comment character
and the result looks horrible.

Reviewed by: emaste

Add UNIMPLEMENTED() placeholder macro for
the syscalls that are not implemented in Linux kernel itself.
Cleanup DUMMY() macros.

Reviewed by: dchagin, trasz
Approved by: dchagin
MFC after: 1 month
Di

Add UNIMPLEMENTED() placeholder macro for
the syscalls that are not implemented in Linux kernel itself.
Cleanup DUMMY() macros.

Reviewed by: dchagin, trasz
Approved by: dchagin
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D9804

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Change Linux epoll_pwait syscall definition to match Linux actual one.

MFC after: 1 month

Change Linuxulator timerfd syscalls definition to match actual Linux one.

MFC after: 1 month

Update syscall.master to 4.10-rc6. Also fix comments, a typo,
and wrong numbering for a few unimplemented syscalls.

For 32-bit Linuxulator, socketcall() syscall was historically
the entry point for

Update syscall.master to 4.10-rc6. Also fix comments, a typo,
and wrong numbering for a few unimplemented syscalls.

For 32-bit Linuxulator, socketcall() syscall was historically
the entry point for the sockets API. Starting in Linux 4.3, direct
syscalls are provided for the sockets API. Enable it.

The initial version of patch was provided by trasz@ and extended by me.

Submitted by: trasz
MFC after: 2 week
Differential Revision: https://reviews.freebsd.org/D9381

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Implement Linux personality() system call mainly due to READ_IMPLIES_EXEC flag.
In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap().
Linux/i386 set this flag automatically if the bin

Implement Linux personality() system call mainly due to READ_IMPLIES_EXEC flag.
In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap().
Linux/i386 set this flag automatically if the binary requires executable stack.

READ_IMPLIES_EXEC flag will be used in the next Linux mmap() commit.

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