Commit Graph

24 Commits

Author SHA1 Message Date
Konstantin Belousov
f13b5a0f01 Add the wait6(2) system call. It takes POSIX waitid()-like process
designator to select a process which is waited for. The system call
optionally returns siginfo_t which would be otherwise provided to
SIGCHLD handler, as well as extended structure accounting for child
and cumulative grandchild resource usage.

Allow to get the current rusage information for non-exited processes
as well, similar to Solaris.

The explicit WEXITED flag is required to wait for exited processes,
allowing for more fine-grained control of the events the waiter is
interested in.

Fix the handling of siginfo for WNOWAIT option for all wait*(2)
family, by not removing the queued signal state.

PR:	standards/170346
Submitted by:	"Jukka A. Ukkonen" <jau@iki.fi>
MFC after:	1 month
2012-11-13 12:52:31 +00:00
Konstantin Belousov
371778a333 Fix ki_cow for compat32 binaries.
MFC after:	3 days
2012-05-27 05:24:53 +00:00
Juli Mallett
9624d94701 o) Add COMPAT_FREEBSD32 support for MIPS kernels using the n64 ABI with userlands
using the o32 ABI.  This mostly follows nwhitehorn's lead in implementing
   COMPAT_FREEBSD32 on powerpc64.
o) Add a new type to the freebsd32 compat layer, time32_t, which is time_t in the
   32-bit ABI being used.  Since the MIPS port is relatively-new, even the 32-bit
   ABIs use a 64-bit time_t.
o) Because time{spec,val}32 has the same size and layout as time{spec,val} on MIPS
   with 32-bit compatibility, then, disable some code which assumes otherwise
   wrongly when built for MIPS.  A more general macro to check in this case would
   seem like a good idea eventually.  If someone adds support for using n32
   userland with n64 kernels on MIPS, then they will have to add a variety of
   flags related to each piece of the ABI that can vary.  That's probably the
   right time to generalize further.
o) Add MIPS to the list of architectures which use PAD64_REQUIRED in the
   freebsd32 compat code.  Probably this should be generalized at some point.

Reviewed by:	gonzo
2012-03-03 08:19:18 +00:00
Sergey Kandaurov
81f7f2c4db struct timespec32: change types of tv_sec and tv_nsec fields to signed
to match native struct timespec ABI on __LP32__.

This change is a prerequisite for upcoming futimens()/utimensat() in whose
implementations it is assumed that timespec32 can take a negative value.

MFC after:	1 week
2011-11-11 07:17:00 +00:00
Bjoern A. Zeeb
925af54487 Rename ki_ocomm to ki_tdname and OCOMMLEN to TDNAMLEN.
Provide backward compatibility defines under BURN_BRIDGES.

Suggested by:	jhb
Reviewed by:	emaste
Sponsored by:	Sandvine Incorporated
Approved by:	re (kib)
2011-07-18 20:06:15 +00:00
Dmitry Morozovsky
6edeb2c725 Correct small typo in a do{}while(0) define
Approved by:	kib
MFC after:	2 weeks
2011-07-17 17:12:17 +00:00
Konstantin Belousov
8666550972 Provide compat32 shims for kldstat(2).
Requested and tested by:	jpaetzel
MFC after:	1 week
2011-03-30 14:46:12 +00:00
Edward Tomasz Napierala
7123f4cd6f Export login class information via kinfo and make it possible to view
it using "ps -o class".
2011-03-05 14:41:49 +00:00
Konstantin Belousov
da86244d0d Restore the ABI of struct kinfo_proc32 after r213536.
MFC after:	3 days
2010-12-19 21:18:33 +00:00
Attilio Rao
7f08176ee8 Add the ability for GDB to printout the thread name along with other
thread specific informations.

In order to do that, and in order to avoid KBI breakage with existing
infrastructure the following semantic is implemented:
- For live programs, a new member to the PT_LWPINFO is added (pl_tdname)
- For cores, a new ELF note is added (NT_THRMISC) that can be used for
  storing thread specific, miscellaneous, informations. Right now it is
  just popluated with a thread name.

GDB, then, retrieves the correct informations from the corefile via the
BFD interface, as it groks the ELF notes and create appropriate
pseudo-sections.

Sponsored by:	Sandvine Incorporated
Tested by:	gianni
Discussed with:	dim, kan, kib
MFC after:	2 weeks
2010-11-22 14:42:13 +00:00
Konstantin Belousov
4605ef76e7 Add compat32 definition for (old) struct ostat.
MFC after:	1 week
2010-08-07 11:53:38 +00:00
Konstantin Belousov
05e06d1157 Provide compat32 shims for kinfo_proc sysctl. This allows 32bit ps(1) to
mostly work on 64bit host.

The work is based on an original patch submitted by emaste, obtained
from Sandvine's source tree.

Reviewed by:	jhb
MFC after:	1 week
2010-04-21 19:32:00 +00:00
Ed Schouten
510ea843ba Rename st_*timespec fields to st_*tim for POSIX 2008 compliance.
A nice thing about POSIX 2008 is that it finally standardizes a way to
obtain file access/modification/change times in sub-second precision,
namely using struct timespec, which we already have for a very long
time. Unfortunately POSIX uses different names.

This commit adds compatibility macros, so existing code should still
build properly. Also change all source code in the kernel to work
without any of the compatibility macros. This makes it all a less
ambiguous.

I am also renaming st_birthtime to st_birthtim, even though it was a
local extension anyway. It seems Cygwin also has a st_birthtim.
2010-03-28 13:13:22 +00:00
Konstantin Belousov
afde2b6593 Implement compat32 shims for mqueuefs.
Reviewed by:	jhb
MFC after:	2 weeks
2010-03-19 11:10:24 +00:00
Nathan Whitehorn
841c0c7ec7 Provide groundwork for 32-bit binary compatibility on non-x86 platforms,
for upcoming 64-bit PowerPC and MIPS support. This renames the COMPAT_IA32
option to COMPAT_FREEBSD32, removes some IA32-specific code from MI parts
of the kernel and enhances the freebsd32 compatibility code to support
big-endian platforms.

Reviewed by:	kib, jhb
2010-03-11 14:49:06 +00:00
Konstantin Belousov
088b38ac84 Rename implementation function for freebsd32 sysarch(2) to allow for
the arguments translations. Provide ABI-compatible definition of the
struct i386_ldt_args for freebsd32 compat layer.

In collaboration with:	pho
Reviewed by:	jhb
2009-04-01 13:11:50 +00:00
Bjoern A. Zeeb
413628a7e3 MFp4:
Bring in updated jail support from bz_jail branch.

This enhances the current jail implementation to permit multiple
addresses per jail. In addtion to IPv4, IPv6 is supported as well.
Due to updated checks it is even possible to have jails without
an IP address at all, which basically gives one a chroot with
restricted process view, no networking,..

SCTP support was updated and supports IPv6 in jails as well.

Cpuset support permits jails to be bound to specific processor
sets after creation.

Jails can have an unrestricted (no duplicate protection, etc.) name
in addition to the hostname. The jail name cannot be changed from
within a jail and is considered to be used for management purposes
or as audit-token in the future.

DDB 'show jails' command was added to aid debugging.

Proper compat support permits 32bit jail binaries to be used on 64bit
systems to manage jails. Also backward compatibility was preserved where
possible: for jail v1 syscalls, as well as with user space management
utilities.

Both jail as well as prison version were updated for the new features.
A gap was intentionally left as the intermediate versions had been
used by various patches floating around the last years.

Bump __FreeBSD_version for the afore mentioned and in kernel changes.

Special thanks to:
- Pawel Jakub Dawidek (pjd) for his multi-IPv4 patches
  and Olivier Houchard (cognet) for initial single-IPv6 patches.
- Jeff Roberson (jeff) and Randall Stewart (rrs) for their
  help, ideas and review on cpuset and SCTP support.
- Robert Watson (rwatson) for lots and lots of help, discussions,
  suggestions and review of most of the patch at various stages.
- John Baldwin (jhb) for his help.
- Simon L. Nielsen (simon) as early adopter testing changes
  on cluster machines as well as all the testers and people
  who provided feedback the last months on freebsd-jail and
  other channels.
- My employer, CK Software GmbH, for the support so I could work on this.

Reviewed by:	(see above)
MFC after:	3 months (this is just so that I get the mail)
X-MFC Before:   7.2-RELEASE if possible
2008-11-29 14:32:14 +00:00
John Baldwin
74427aa423 Move several data structure definitions out of freebsd32_misc.c and into
freebsd32.h instead.

MFC after:	1 week
2007-12-06 23:11:27 +00:00
David Xu
cda9a0d1c2 Add compatible code to let 32bit libthr work on 64bit kernel. 2006-09-22 15:04:28 +00:00
Warner Losh
1a3c917f9d while (0); -> while (0) in multi-line macros 2006-08-17 22:50:33 +00:00
Peter Wemm
0c70bced57 Catch up to the not-so-recent statfs(2) changes. 2004-04-14 23:17:37 +00:00
Peter Wemm
60a8c422cd Add CTASSERT()'s to check that the sizes of our replicas of the 32 bit
structures come out the right size.

Fix the ones that broke.  stat32 had some missing fields from the end
and statfs32 was broken due to the strange definition of MNAMELEN
(which is dependent on sizeof(long))

I'm not sure if this fixes any actual problems or not.
2003-10-30 02:40:30 +00:00
Peter Wemm
1c7abef7a8 Initial sweep to de-i386-ify this 2003-08-22 23:07:28 +00:00
Peter Wemm
3ebc124838 Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).
2002-07-20 02:56:12 +00:00