linux(4): Deorbit linux_nosys from syscalls.master

Differential Revision: https://reviews.freebsd.org/D41902
MFC after: 1 week

(cherry picked from commit 8e523be5a5a2cb9660021d2de5732ee7257b2788)

linux(4): Update syscalls.master to 6.5

MFC after: 1 week

(cherry picked from commit 0a16d3d14db67c89ee08f954c670ec4f447a7ab5)

linux(4): Add a writev syscall wrapper

Adding a writev syscall wrapper is needed due to Linux family of write
syscalls doesn't distinguish between in kernel blocking operations
and always returns EA

linux(4): Add a writev syscall wrapper

Adding a writev syscall wrapper is needed due to Linux family of write
syscalls doesn't distinguish between in kernel blocking operations
and always returns EAGAIN while FreeBSD can return ENOBUFS.

MFC after: 1 month

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linux(4): Modify write syscall to match Linux

Adding a write syscall wrapper is needed due to Linux family of write
syscalls doesn't distinguish between in kernel blocking operations
and always retu

linux(4): Modify write syscall to match Linux

Adding a write syscall wrapper is needed due to Linux family of write
syscalls doesn't distinguish between in kernel blocking operations
and always returns EAGAIN while FreeBSD can return ENOBUFS.

MFC after: 1 month

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sys: Remove $FreeBSD$: one-line bare tag

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

linux(4): Modify ioprio syscalls to match Linux

MFC after: 1 month

linux(4): Modify xattr syscalls to match Linux

MFC after: 1 month

linux(4): Add a dedicated linux_exec_copyin_args()

Because Linux allows to exec binaries with 0 argc.

Reviewed by: brooks
Differential Revision: https://reviews.freebsd.org/D40148
MFC after: 2 mo

linux(4): Add a dedicated linux_exec_copyin_args()

Because Linux allows to exec binaries with 0 argc.

Reviewed by: brooks
Differential Revision: https://reviews.freebsd.org/D40148
MFC after: 2 month

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linux(4): Use Linux dev_t type for mknod syscalls dev argument

As of version 2.6.0 of the Linux kernel, dev_t is a 32-bit unsigned integer
on all platforms. Prior the 2.6 kernel dev_t type was an un

linux(4): Use Linux dev_t type for mknod syscalls dev argument

As of version 2.6.0 of the Linux kernel, dev_t is a 32-bit unsigned integer
on all platforms. Prior the 2.6 kernel dev_t type was an unsigned short.
However, since the firs commit of the Linuxulator, mknod syscall get int dev
argument.
Also, there is some confusion here, while the kernel declares a dev_t type
as a 32-bit sized, the user-space dev_t type can be size of 64 bits, e.g.,
in the Glibc library.
To avoid confusion and to help porting of the Linuxulator to other platforms
use explicit l_dev_t for dev argument of mknod syscalls.

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syscall.master: Fix comments

Have more accruate comments. While #if, #else, etc are copied to the
header files, lines that don't start with # are not. And #include files
are only output to sysinc (

syscall.master: Fix comments

Have more accruate comments. While #if, #else, etc are copied to the
header files, lines that don't start with # are not. And #include files
are only output to sysinc (which winds up at the front of init_sysent.c
which seems a bit odd). This is all radically undocumented, and likely
has drifted somewhat from 4.4BSD and what other systems do (they've
drifted too, fwiw).

Sponsored by: Netflix

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linux(4): Modify close_range syscall to match Linux

MFC after: 2 weeks

linux(4): Change semtimedop syscall definition to match Linux actual one.

MFC after: 2 weeks

linux(4): Call semop directly.

As the Linux semop syscall is not defined in i386, and as it is equal
to the native semop syscall, call it directly.
Fix semop definition to match Linux actual one - n

linux(4): Call semop directly.

As the Linux semop syscall is not defined in i386, and as it is equal
to the native semop syscall, call it directly.
Fix semop definition to match Linux actual one - nsops is size_t type.

MFC after: 2 weeks

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linux(4): Change epoll_pwait2 syscall definition to match Linux actual one.

MFC after: 2 weeks

linux(4): Change rseq syscall definition to match Linux actual one.

MFC after: 2 weeks

linux(4): Implement clone3 system call.

clone3 system call is used by glibc-2.34.

Differential revision: https://reviews.freebsd.org/D31475
MFC after: 2 weeks

linux(4): Change clone syscall definition to match Linux actual one.

Differential revision: https://reviews.freebsd.org/D31473
MFC after: 2 weeks

linux(4): Implement faccessat2 system call.

It's used by bash on arm64 with glibc-2.32.

Reviewed by: trasz
Differential Revision: https://reviews.freebsd.org/D31345
MFC after: 2 weeks

linux(4): Implement poll system call via linux_common_ppol()
for the sake of converting events to/from native.

MFC after: 2 weeks

linux(4): Change Linux futex syscall definition to match Linux actual one.

MFC after: 2 weeks

linux(4): Fix timeout parameter of rt_sigtimedwait syscall, which is
timespec not a timeval.

MFC after: 2 weeks

linux: add new syscall numbers

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

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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