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

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

linux(4): Use pwd_altroot() to tell namei() about ABI root path

PR: 72920
Differential Revision: https://reviews.freebsd.org/D40090
MFC after: 2 month

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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

show more ...

linux(4): Microoptimize linux_elf.h for future use.

In order to reduce code duplication move coredump support definitions
into the appropriate header and hide private definitions.

MFC after: 1 week

linux(4): Handle SO_TIMESTAMPNS socket option

The SO_TIMESTAMPNS enables or disables the receiving of the SCM_TIMESTAMPNS
control message. The cmsg_data field is a struct timespec.
To distinguish be

linux(4): Handle SO_TIMESTAMPNS socket option

The SO_TIMESTAMPNS enables or disables the receiving of the SCM_TIMESTAMPNS
control message. The cmsg_data field is a struct timespec.
To distinguish between SO_TIMESTAMP and SO_TIMESTAMPNS in the recvmsg()
map the last one to the SO_BINTIME and convert bintime to the timespec.
In the rest, implementation is identical to the SO_TIMESTAMP.

MFC after: 2 weeks

show more ...

linux(4): Handle 64-bit SO_TIMESTAMP for 32-bit binaries

To solve y2k38 problem in the recvmsg syscall the new SO_TIMESTAMP
constant were added on v5.1 Linux kernel. So, old 32-bit binaries
that kno

linux(4): Handle 64-bit SO_TIMESTAMP for 32-bit binaries

To solve y2k38 problem in the recvmsg syscall the new SO_TIMESTAMP
constant were added on v5.1 Linux kernel. So, old 32-bit binaries
that knows only 32-bit time_t uses the old value of the constant,
and binaries that knows 64-bit time_t uses the new constant.

To determine what size of time_t type is expected by the user-space,
store requested value (SO_TIMESTAMP) in the process emuldata structure.

MFC after: 2 weeks

show more ...

linprocfs: Add /proc/self/oom_score_adj.

To avoid annoyng messages from LTP test suites add the simple
implementation of /proc/self/oom_score_adj which is do nothing.

Reviewed by: emaste
Different

linprocfs: Add /proc/self/oom_score_adj.

To avoid annoyng messages from LTP test suites add the simple
implementation of /proc/self/oom_score_adj which is do nothing.

Reviewed by: emaste
Differential revision: https://reviews.freebsd.org/D34710
MFC after: 2 weeks

show more ...

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

show more ...

Drop "All rights reserved" from my copyright statements.

Add email and fixup years while here.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D30912
MFC after: 2 weeks

linux(4): implement coredump support

Implement dumping core for Linux binaries on amd64, for both
32- and 64-bit executables. Some bits are still missing.

This is based on a prototype by chuck@.

linux(4): implement coredump support

Implement dumping core for Linux binaries on amd64, for both
32- and 64-bit executables. Some bits are still missing.

This is based on a prototype by chuck@.

Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30019

show more ...

epoll: Store epoll_event udata member in ext member of kevent.

Current epoll implementation stores udata fields of epoll_event
structure in special dynamically-sized table rather than in udata field

epoll: Store epoll_event udata member in ext member of kevent.

Current epoll implementation stores udata fields of epoll_event
structure in special dynamically-sized table rather than in udata field
of backing kevent structure because of 2 reasons:
1. Kevent's udata size is smaller than epoll's on 32-bit archs.
2. Kevent's udata can be clobbered on execution EPOLL_CTL_ADD as kqueue
modifies existing event while epoll returns error in this case.

After r320043 has introduced four new 64bit user data members (ext[]),
we can store epoll udata in one of them and drop aforementioned table.
According to kqueue_register() source code ext members are not updated
when existing kevent is modified that fixes p.2.

As a side effect the patch fixes PR/252582.

Reviewed by: trasz
MFC after: 1 month
Differential revision: https://reviews.freebsd.org/D28169

show more ...

Linuxolator: Replace use of eventhandlers by sysent hooks.

Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D27309

Make linux_errtbl[] static.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27004

MFHead @348740

Sponsored by: The FreeBSD Foundation

Implement PTRACE_O_TRACESYSGOOD. This makes Linux strace(1) work.

Reviewed by: dchagin
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20

Implement PTRACE_O_TRACESYSGOOD. This makes Linux strace(1) work.

Reviewed by: dchagin
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20200

show more ...

MFHead @347527

Sponsored by: The FreeBSD Foundation

Follow the FreeBSD and implement PDEATH_SIG prctl ops in the Linuxulator.
It was first introduced in r163734 and missied by me in r283383.

MFC after: 1 week

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

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

linux(4): Use pwd_altroot() to tell namei() about ABI root path

PR: 72920
Differential Revision: https://reviews.freebsd.org/D40090
MFC after: 2 month

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

show more ...

linux(4): Microoptimize linux_elf.h for future use.

In order to reduce code duplication move coredump support definitions
into the appropriate header and hide private definitions.

MFC after: 1 week

linux(4): Handle SO_TIMESTAMPNS socket option

The SO_TIMESTAMPNS enables or disables the receiving of the SCM_TIMESTAMPNS
control message. The cmsg_data field is a struct timespec.
To distinguish be

linux(4): Handle SO_TIMESTAMPNS socket option

The SO_TIMESTAMPNS enables or disables the receiving of the SCM_TIMESTAMPNS
control message. The cmsg_data field is a struct timespec.
To distinguish between SO_TIMESTAMP and SO_TIMESTAMPNS in the recvmsg()
map the last one to the SO_BINTIME and convert bintime to the timespec.
In the rest, implementation is identical to the SO_TIMESTAMP.

MFC after: 2 weeks

show more ...

linux(4): Handle 64-bit SO_TIMESTAMP for 32-bit binaries

To solve y2k38 problem in the recvmsg syscall the new SO_TIMESTAMP
constant were added on v5.1 Linux kernel. So, old 32-bit binaries
that kno

linux(4): Handle 64-bit SO_TIMESTAMP for 32-bit binaries

To solve y2k38 problem in the recvmsg syscall the new SO_TIMESTAMP
constant were added on v5.1 Linux kernel. So, old 32-bit binaries
that knows only 32-bit time_t uses the old value of the constant,
and binaries that knows 64-bit time_t uses the new constant.

To determine what size of time_t type is expected by the user-space,
store requested value (SO_TIMESTAMP) in the process emuldata structure.

MFC after: 2 weeks

show more ...

linprocfs: Add /proc/self/oom_score_adj.

To avoid annoyng messages from LTP test suites add the simple
implementation of /proc/self/oom_score_adj which is do nothing.

Reviewed by: emaste
Different

linprocfs: Add /proc/self/oom_score_adj.

To avoid annoyng messages from LTP test suites add the simple
implementation of /proc/self/oom_score_adj which is do nothing.

Reviewed by: emaste
Differential revision: https://reviews.freebsd.org/D34710
MFC after: 2 weeks

show more ...

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

show more ...