Commit Graph

35 Commits

Author SHA1 Message Date
Ed Maste
fc7510aef7 linuxulator: implement sendfile
Submitted by:	Bora Özarslan <borako.ozarslan@gmail.com>
Submitted by:	Yang Wang <2333@outlook.jp>
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D19917
2020-02-05 16:53:02 +00:00
Edward Tomasz Napierala
369c4633c1 Add missing linux(4) syscall entries. This fixes missing debug
messages for some of the unimplemented syscalls, in particular
the AIO-related ones.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D23231
2020-02-04 16:01:06 +00:00
Edward Tomasz Napierala
cc50333011 Add basic getcpu(2) support to linuxulator. The purpose of this
syscall is to query the CPU number and the NUMA domain the calling
thread is currently running on.  The third argument is ignored.
It doesn't do anything regarding scheduling - it's literally
just a way to query the current state, without any guarantees
you won't get rescheduled an opcode later.

This unbreaks Java from CentOS 8
(java-11-openjdk-11.0.5.10-0.el8_0.x86_64).

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22972
2019-12-31 22:01:08 +00:00
Pawel Biernacki
54666dffa8 linux(4): implement copy_file_range(2)
copy_file_range(2) is implemented natively since r350315, make it available
for Linux binaries too.

Reviewed by:	kib (mentor), trasz (previous version)
Approved by:	kib (mentor)
Differential Revision:	https://reviews.freebsd.org/D22959
2019-12-30 18:11:06 +00:00
Edward Tomasz Napierala
ee0fe82ee2 Implement Linux syslog(2) syscall; just enough to make Linux dmesg(8)
utility work.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22465
2019-12-29 15:53:55 +00:00
Edward Tomasz Napierala
cf69fe66d4 Add sync_file_range(2) implementation to linux(4); it's a thin wrapper
over the usual fsync(2).

This silences some warnings when running "apt-get upgrade".

Reviewed by:	brooks, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22371
2019-12-14 13:37:17 +00:00
Ed Maste
a8ce8f0ae5 Update comments and ordering in linux*_dummy.c
- sort alphabetically
- getcpu arrived in Linux 2.6.19
- fanotify_* arrived in 2.6.36
2019-09-11 17:56:48 +00:00
Ed Maste
eff9d7b799 linuxulator: memfd_create first appeared in Linux 3.17
Reference: http://man7.org/linux/man-pages/man2/memfd_create.2.html
2019-09-11 17:05:49 +00:00
Ed Maste
1515fe49f2 linuxulator: seccomp syscall first appeared in Linux 3.17
Reference: http://man7.org/linux/man-pages/man2/seccomp.2.html
2019-09-11 17:04:13 +00:00
Ed Maste
2eb6ef203a linux: add trivial renameat2 implementation
Just return EINVAL if flags != 0.  The Linux man page documents one
case of EINVAL as "The filesystem does not support one of the flags in
flags."

After r351723 userland binaries will try using new system calls.

Reported by:	mjg
Reviewed by:	mjg, trasz
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21590
2019-09-11 13:01:59 +00:00
Dmitry Chagin
f730d606d5 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
2019-03-24 14:50:02 +00:00
Fedor Uporov
6651cf410c Fix errno values returned from DUMMY_XATTR linuxulator calls
Reported by: weiss@uni-mainz.de
Reviewed by: markj
MFC after: 1 day
Differential Revision: https://reviews.freebsd.org/D18812
2019-01-11 07:58:25 +00:00
Brooks Davis
6469bdcdb6 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
2018-04-06 17:35:35 +00:00
Ed Maste
023b850b62 Rationalize license text on Linuxolator files
Many licenses on Linuxolator files contained small variations from the
standard FreeBSD license text.  To avoid license proliferation switch to
the standard 2-clause FreeBSD license for those files where I have
permission from each of the listed copyright holders.  Additional files
still waiting on permission from others are listed in review D14210.

Approved by:    dchagin, rdivacky, sos
MFC after:	1 week
MFC with:	r329370
Sponsored by:	The FreeBSD Foundation
2018-03-01 13:52:18 +00:00
Ed Maste
eae594f7d5 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.
2018-02-22 02:24:17 +00:00
Dmitry Chagin
6c2a934b79 Implement Linux mincore() system call.
This is necessary for the upcoming drm-next.

Suggested by:	hselasky@
MFC after:	1 month
2017-03-25 15:47:29 +00:00
Dmitry Chagin
b1ba0846f1 Implement getrandom() syscall.
Note. GRND_RANDOM option is not supported for now.

MFC after:	1 month
2017-03-18 18:34:29 +00:00
Mahdi Mokhtari
8049c6bfb8 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
2017-03-06 18:11:38 +00:00
Dmitry Chagin
dd93b628e9 Implement timerfd family syscalls.
MFC after:	1 month
2017-02-26 09:48:18 +00:00
Mahdi Mokhtari
bd911530b7 Add linux_preadv() and linux_pwritev() syscalls to Linuxulator.
Reviewed by:	dchagin
Approved by:	dchagin, trasz (src committers)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D9722
2017-02-24 20:04:02 +00:00
Dmitry Chagin
8665c4d9cd Revert r314217. Commit is not match that I have approved. 2017-02-24 19:47:27 +00:00
Mahdi Mokhtari
21d23e3249 Add linux_preadv() and linux_pwritev() syscalls to Linuxulator.
Reviewed by:	dchagin
Approved by:	dchagin, trasz (src committers)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D9722
2017-02-24 19:22:17 +00:00
Dmitry Chagin
486a06bdf0 Implement rt_tgsigqueueinfo system call used by glibc for pthread_sigqueue(3).
MFC after:	2 week
2017-02-19 07:38:11 +00:00
Edward Tomasz Napierala
d82de05480 Implement linux version of ptrace(2). It's nowhere near complete,
but it allows to use 64 bit linux strace(1) on 64 bit linux binaries.

Reviewed by:	dchagin (earlier version)
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D9406
2017-02-16 13:32:15 +00:00
Dmitry Chagin
8b756d40a7 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
2017-02-05 14:17:09 +00:00
Mark Johnston
7672ca059a Remove unneeded includes of opt_kdtrace.h.
As of r258541, KDTRACE_HOOKS is defined in opt_global.h, so opt_kdtrace.h
is not needed when defining SDT(9) probes.
2015-11-22 02:01:01 +00:00
Dmitry Chagin
9802eb9ebc Implement Linux specific syncfs() system call. 2015-05-24 18:08:01 +00:00
Dmitry Chagin
e1ff74c0f7 Implement recvmmsg() and sendmmsg() system calls. 2015-05-24 18:04:04 +00:00
Dmitry Chagin
6e4c8004dc Implement epoll_pwait() system call. 2015-05-24 18:00:14 +00:00
Dmitry Chagin
19d8b461f4 Add utimensat() system call.
The patch developed by Jilles Tjoelker and Andrew Wilcox and
adopted for lemul branch by me.
2015-05-24 17:57:07 +00:00
Dmitry Chagin
b6aeb7d5dd Add preliminary fallocate system call implementation
to emulate posix_fallocate() function.

Differential Revision:	https://reviews.freebsd.org/D1523
Reviewed by:	emaste
2015-05-24 17:33:21 +00:00
Dmitry Chagin
a6b40812ec Implement ppoll() system call.
Differential Revision:	https://reviews.freebsd.org/D1105
Reviewed by:	trasz
2015-05-24 16:59:25 +00:00
Dmitry Chagin
a31d76867d Implement eventfd system call.
Differential Revision:	https://reviews.freebsd.org/D1094
In collaboration with:	Jilles Tjoelker
2015-05-24 16:49:14 +00:00
Dmitry Chagin
e16fe1c730 Implement epoll family system calls. This is a tiny wrapper
around kqueue() to implement epoll subset of functionality.
The kqueue user data are 32bit on i386 which is not enough for
epoll user data, so we keep user data in the proc emuldata.

Initial patch developed by rdivacky@ in 2007, then extended
by Yuri Victorovich @ r255672 and finished by me
in collaboration with mjg@ and jillies@.

Differential Revision:	https://reviews.freebsd.org/D1092
2015-05-24 16:41:39 +00:00
Dmitry Chagin
b2f587918d Add preliminary support for x86-64 Linux binaries.
Differential Revision:	https://reviews.freebsd.org/D1076
2015-05-24 16:07:11 +00:00