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952 Commits

Author SHA1 Message Date
Mateusz Guzik
f131759f54 fd: make 'rights' a manadatory argument to fget* functions 2015-07-05 19:05:16 +00:00
Dmitry Chagin
3c91646b46 Add EPOLLRDHUP support. 
Tested by:	abi at abinet dot ru
 2015-06-20 05:40:35 +00:00
Mateusz Guzik
4da8456f0a Replace struct filedesc argument in getvnode with struct thread 
This is is a step towards removal of spurious arguments.
 2015-06-16 13:09:18 +00:00
Mateusz Guzik
6871c7c3f1 linux: make sure to grab all cow structs when creating a thread 
This is a fixup for r284214.

Reported and tested by: Ivan Klymenko <fidaj ukr.net>
 2015-06-10 15:34:43 +00:00
Mateusz Guzik
f6f6d24062 Implement lockless resource limits. 
Use the same scheme implemented to manage credentials.

Code needing to look at process's credentials (as opposed to thred's) is
provided with *_proc variants of relevant functions.

Places which possibly had to take the proc lock anyway still use the proc
pointer to access limits.
 2015-06-10 10:48:12 +00:00
Jung-uk Kim
1a01bdf906 Properly initialize flags for accept4(2) not to return spurious EINVAL. 
Note this fixes a Linuxulator regression introduced in r283490.

PR:		200662
 2015-06-08 20:03:15 +00:00
Dmitry Chagin
32ba368ba9 Finish r283544. In exec case properly detach threads from user space 
before suicide.
 2015-06-06 06:12:14 +00:00
Dmitry Chagin
d707582f83 When I merged the lemul branch I missied kib@'s r282708 commit. 
This is not the final fix as I need properly cleanup thread resources
before other threads suicide.

Tested by:	Ruslan Makhmatkhanov
 2015-05-25 20:44:46 +00:00
Dmitry Chagin
5c2748d5e7 Linux nanosleep() and clock_nanosleep() system calls always 
writes the remaining time into the structure pointed to by rmtp
unless rmtp is NULL. The value of *rmtp can then be used to call
nanosleep() again and complete the specified pause if the previous
call was interrupted.

Note. clock_nanosleep() with an absolute time value does not write
the remaining time.

While here fix whitespaces and typo in SDT_PROBE.
 2015-05-24 18:14:38 +00:00
Dmitry Chagin
bbf392d5ef Convert SCM_TIMESTAMP in recvmsg(). 2015-05-24 18:13:21 +00:00
Dmitry Chagin
5989b75bdb The latest cp tool is trying to use the btrfs clone operation that is 
implemented via ioctl interface. First of all return ENOTSUP for this
operation as a cp fallback to usual method in that case. Secondly, do
not print out the message about unimplemented operation.
 2015-05-24 18:12:04 +00:00
Dmitry Chagin
4f65e9cff4 Fix an mbuf(9) leak in sendmsg() under failure condition and 
remove unneeded check for failed M_WAITOK allocation.

Found by: Brainy Code Scanner
Reported by: Maxime Villard
 2015-05-24 18:10:07 +00:00
Dmitry Chagin
9802eb9ebc Implement Linux specific syncfs() system call. 2015-05-24 18:08:01 +00:00
Dmitry Chagin
d9cbe8f0ef Properly check tv_nsec value. The tv_nsec field can also be one 
of the special value UTIME_NOW or UTIME_OMIT.
 2015-05-24 18:06:46 +00:00
Dmitry Chagin
4cf10e2934 Since FreeBSD supports SOCK_CLOEXEC & SOCK_NONBLOCK options 
remove its emulation via fcntl call from Linuxulator.
 2015-05-24 18:06:12 +00:00
Dmitry Chagin
e1ff74c0f7 Implement recvmmsg() and sendmmsg() system calls. 2015-05-24 18:04:04 +00:00
Dmitry Chagin
b7aaa9fdb0 Reduce duplication between MD Linux code by moving msg related 
struct definitions out into the compat/linux/linux_socket.h
 2015-05-24 18:03:14 +00:00
Dmitry Chagin
6e4c8004dc Implement epoll_pwait() system call. 2015-05-24 18:00:14 +00:00
Dmitry Chagin
b7c4ebdb56 Convert signal number to native for VT_SETMODE ioctl and remove 
strange and invalid ISSIGVALID macro.
The code has not been tested right way but it was originally broken.
 2015-05-24 17:59:17 +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
5885e5ab29 Convert Linux signal number to the FreeBSD. 2015-05-24 17:49:09 +00:00
Dmitry Chagin
4ab7403bbd Rework signal code to allow using it by other modules, like linprocfs: 
1. Linux sigset always 64 bit on all platforms. In order to move Linux
sigset code to the linux_common module define it as 64 bit int. Move
Linux sigset manipulation routines to the MI path.

2. Move Linux signal number definitions to the MI path. In general, they
are the same on all platforms except for a few signals.

3. Map Linux RT signals to the FreeBSD RT signals and hide signal conversion
tables to avoid conversion errors.

4. Emulate Linux SIGPWR signal via FreeBSD SIGRTMIN signal which is outside
of allowed on Linux signal numbers.

PR:		197216
 2015-05-24 17:47:20 +00:00
Dmitry Chagin
a7ac457613 According to Linux man sigaltstack(3) shall return EINVAL if the ss 
argument is not a null pointer, and the ss_flags member pointed to by ss
contains flags other than SS_DISABLE. However, in fact, Linux also
allows SS_ONSTACK flag which is simply ignored.

For buggy apps (at least mono) ignore other than SS_DISABLE
flags as a Linux do.

While here move MI part of sigaltstack code to the appropriate place.

Reported by:	abi at abinet dot ru
 2015-05-24 17:44:08 +00:00
Dmitry Chagin
76672e1113 Add EPOLLERR flag handling to epoll. 
Tested by:	abi at abinet dot ru
 2015-05-24 17:42:45 +00:00
Dmitry Chagin
e2ff4b9864 As fo_fill_kinfo() does not check fo_fill_kinfo to NULL 
add a fo_fill_kinfo op to eventfdops.

Reported by:	trinity
 2015-05-24 17:40:14 +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
16ac71bc4f Delete the duplicate of linux_to_native_clockid() function. 
Differential Revision:	https://reviews.freebsd.org/D1521
Reviewed by:	trasz
 2015-05-24 17:30:31 +00:00
Dmitry Chagin
680982281b Do not use struct l_timespec without conversion. While here move 
args->timeout handling before acquiring the futex key at FUTEX_WAIT path.

Differential Revision:	https://reviews.freebsd.org/D1520
Reviewed by:	trasz
 2015-05-24 17:29:18 +00:00
Dmitry Chagin
7e947ccc81 Add prototypes for static futex functions. 
Differential Revision:	https://reviews.freebsd.org/D1519
Reviewed by:	trasz
 2015-05-24 17:27:59 +00:00
Dmitry Chagin
2166e4e0a5 As for now our tmpfs is no longer being considered 
"highly experimental" remove /dev/shm magic commited
in r218497 and convert tmpfs type to an expected magic number.

Differential Revision:	https://reviews.freebsd.org/D1497
Reviewed by:	emaste, trasz
 2015-05-24 17:26:58 +00:00
Dmitry Chagin
5dd1d097f8 Print out unsupported futex operation message only once for the process. 
Differential Revision:	https://reviews.freebsd.org/D1498
 2015-05-24 17:25:57 +00:00
Dmitry Chagin
2711aba97e Add some clock mappings used in glibc 2.20. 
Differential Revision:	https://reviews.freebsd.org/D1465
Reviewd by:	trasz
 2015-05-24 17:23:08 +00:00
Dmitry Chagin
7d96520b25 Improve ktr(9) records in thread managment code. 
Differential Revision:	https://reviews.freebsd.org/D1464
Reviewed by:	trasz
 2015-05-24 17:09:07 +00:00
Dmitry Chagin
68cf0367e9 Use local struct proc * varable instead of dereferencing td->td_proc. 
Differential Revision:	https://reviews.freebsd.org/D1463
Reviewed by:	emaste
 2015-05-24 17:08:25 +00:00
Dmitry Chagin
97cfa5c899 Avoid unnecessary em zeroing in non-exec path 
as it already zeroed by malloc with M_ZERO flag
and move zeroing to the proper place in exec path.

Differential Revision:	https://reviews.freebsd.org/D1462
Reviewed by:	trasz
 2015-05-24 17:07:10 +00:00
Dmitry Chagin
e0327ddba0 Remove the unnecessary cast. 
Differential Revision:	https://reviews.freebsd.org/D1461
Reviewed by:	emaste
 2015-05-24 17:05:59 +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
3d7b4b3720 td_sigmask of a newly created thread copied from td. 
Remove excess initialization of td_sigmask.

Differential Revision:	https://reviews.freebsd.org/D1128
Reviewed by:	emaste
 2015-05-24 16:56:32 +00:00
Dmitry Chagin
2c4f134b25 Update Linux compat revision to 32. 
Differential Revision:	https://reviews.freebsd.org/D1122
Reviewed by:	emaste
 2015-05-24 16:55:32 +00:00
Dmitry Chagin
520e9c187d Fix linux_common module build with KTR option. 
Differential Revision:	https://reviews.freebsd.org/D1096
Reviewed by:	trasz
 2015-05-24 16:52:45 +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
3e89b64168 Put the correct value for the abi_nfdbits parameter of kern_select() for 
all supported Linuxulators.

Differential Revision:	https://reviews.freebsd.org/D1093
Reviewed by:	trasz
 2015-05-24 16:47:13 +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
d2b6dbc06f Implement F_DUPFD_CLOEXEC fcntl flag. 
Differential Revision:	https://reviews.freebsd.org/D1089
Reviewed by:	trasz
 2015-05-24 16:34:57 +00:00
Dmitry Chagin
bfa4d74baf Add several fcntl flags. 
Differential Revision:	https://reviews.freebsd.org/D1088
Reviewed by:	trasz
 2015-05-24 16:32:52 +00:00
Dmitry Chagin
4d0f380d87 To avoid code duplication move open/fcntl definitions to the MI 
header file.

Differential Revision:	https://reviews.freebsd.org/D1087
Reviewed by:	trasz
 2015-05-24 16:31:44 +00:00
Dmitry Chagin
26c68e1fe5 Use the BSD_TO_LINUX_SIGNAL() wherever there is no need 
to check the ABI as it is known.

Differential Revision:	https://reviews.freebsd.org/D1086
 2015-05-24 16:30:23 +00:00
Dmitry Chagin
2245df381a Convert Linux wait options to the FreeBSD. 
Check wait options as a Linux do.
Linux always set WEXITED option not a WUNTRACED|WNOHANG
which is a strange bug.

Differential Revision:	https://reviews.freebsd.org/D1085
Reviewed by:	trasz
 2015-05-24 16:28:58 +00:00
Dmitry Chagin
7a7a6efc25 Set WIFCONTINUED to the wait status if needed. 
Differential Revision:	https://reviews.freebsd.org/D1083
Reviewed by:	trasz
 2015-05-24 16:27:38 +00:00
Dmitry Chagin
9599b0ec3a Rewrite linux_recvfrom. To avoid double conversion of sockaddr use 
kern_recvit() directly.
And check fromlen parameter before sockaddr copyin and conversion.

Differential Revision:	https://reviews.freebsd.org/D1082
 2015-05-24 16:26:55 +00:00