Commit Graph

97 Commits

Author SHA1 Message Date
Bjoern A. Zeeb
8d8bc0182e After r193232 rt_tables in vnet.h are no longer indirectly dependent on
the ROUTETABLES kernel option thus there is no need to include opt_route.h
anymore in all consumers of vnet.h and no longer depend on it for module
builds.

Remove the hidden include in flowtable.h as well and leave the two
explicit #includes in ip_input.c and ip_output.c.
2009-06-08 19:57:35 +00:00
Robert Watson
d5fc25e5d6 Remove opt_mac.h generation for various kernel modules that no longer
require it.

Submitted by:	pjd
2009-06-06 17:01:44 +00:00
Dag-Erling Smørgrav
b2cc900a90 Move opt_apic.h closer to the "XXX: for assym.s" comment.
Suggested by:	jhb
MFC after:	1 week
2009-05-26 20:57:19 +00:00
Dag-Erling Smørgrav
e8cdb7739f opt_apic.h is i386-only.
MFC after:	1 week
2009-05-26 20:22:03 +00:00
Dmitry Chagin
4ec3ea90eb Add preliminary KTR(9) support to the linux emulation layer.
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-07 10:01:05 +00:00
Nick Hibma
999d258466 Fix a few problems related to building modules in /sys/modules (not
checked whether this applies to builds in /sys/*/compile/* as well):

- Create empty opt_*.h files were missing
- Hook up svr4 to the build. It compiles fine here, so no reason to
  disconnect it in the Makefile. were missing
  - Hook up svr4 to the build. It compiles fine here, so no reason to
    disconnect it in the Makefile.
2009-02-12 14:44:15 +00:00
Bjoern A. Zeeb
4b79449e2f Rather than using hidden includes (with cicular dependencies),
directly include only the header files needed. This reduces the
unneeded spamming of various headers into lots of files.

For now, this leaves us with very few modules including vnet.h
and thus needing to depend on opt_route.h.

Reviewed by:	brooks, gnn, des, zec, imp
Sponsored by:	The FreeBSD Foundation
2008-12-02 21:37:28 +00:00
Warner Losh
9e51595ce6 Per email to arch@ a little while ago (that was greeted with silence),
prefer the more common > ${.TARGET} over > opt_foo.h in modules
makefiles.
2008-09-01 23:59:00 +00:00
Konstantin Belousov
a96811b171 Fix the dependency for the linux_support.s, explicitely add linux_assym.h.
Reported by:	rwatson
In collaboration with:	rdivacky
Sponsored by:	Google SoC 2007
2007-05-23 15:45:52 +00:00
Konstantin Belousov
1c182de9a9 Move futex support code from <arch>/support.s into linux compat directory.
Implement all futex atomic operations in assembler to not depend on the
fuword() that does not allow to distinguish between -1 and failure return.
Correctly return 0 from atomic operations on success.

In collaboration with:	rdivacky
Tested by:	Scot Hetzel <swhetzel gmail com>, Milos Vyletel <mvyletel mzm cz>
Sponsored by:	Google SoC 2007
2007-05-23 08:33:06 +00:00
Alexander Leidinger
3680a41902 Backout the linux aio stuff. Several problems where identified and the
dynamic nature (if no native aio code is available, the linux part
returns ENOSYS because of missing requisites) should be solved differently
than it is.

All this will be done in P4.

Not included in this commit is a backout of the changes to the native aio
code (removing static in some places). Those changes (and some more) will
also be needed when the reworked linux aio stuff will reenter the tree.

Requested by:	rwatson
Discussed with:	rwatson
2006-10-29 14:02:39 +00:00
Alexander Leidinger
6a1162d4cd MFP4 (with some minor changes):
Implement the linux_io_* syscalls (AIO). They are only enabled if the native
AIO code is available (either compiled in to the kernel or as a module) at
the time the functions are used. If the AIO stuff is not available there
will be a ENOSYS.

From the submitter:
---snip---
DESIGN NOTES:

1. Linux permits a process to own multiple AIO queues (distinguished by
   "context"), but FreeBSD creates only one single AIO queue per process.
   My code maintains a request queue (STAILQ of queue(3)) per "context",
   and throws all AIO requests of all contexts owned by a process into
   the single FreeBSD per-process AIO queue.

   When the process calls io_destroy(2), io_getevents(2), io_submit(2) and
   io_cancel(2), my code can pick out requests owned by the specified context
   from the single FreeBSD per-process AIO queue according to the per-context
   request queues maintained by my code.

2. The request queue maintained by my code stores contrast information between
   Linux IO control blocks (struct linux_iocb) and FreeBSD IO control blocks
   (struct aiocb). FreeBSD IO control block actually exists in userland memory
   space, required by FreeBSD native aio_XXXXXX(2).

3. It is quite troubling that the function io_getevents() of libaio-0.3.105
   needs to use Linux-specific "struct aio_ring", which is a partial mirror
   of context in user space. I would rather take the address of context in
   kernel as the context ID, but the io_getevents() of libaio forces me to
   take the address of the "ring" in user space as the context ID.

   To my surprise, one comment line in the file "io_getevents.c" of
   libaio-0.3.105 reads:

             Ben will hate me for this

REFERENCE:

1. Linux kernel source code:   http://www.kernel.org/pub/linux/kernel/v2.6/
   (include/linux/aio_abi.h, fs/aio.c)

2. Linux manual pages:         http://www.kernel.org/pub/linux/docs/manpages/
   (io_setup(2), io_destroy(2), io_getevents(2), io_submit(2), io_cancel(2))

3. Linux Scalability Effort:   http://lse.sourceforge.net/io/aio.html
   The design notes:           http://lse.sourceforge.net/io/aionotes.txt

4. The package libaio, both source and binary:
       http://rpmfind.net/linux/rpm2html/search.php?query=libaio
   Simple transparent interface to Linux AIO system calls.

5. Libaio-oracle:              http://oss.oracle.com/projects/libaio-oracle/
   POSIX AIO implementation based on Linux AIO system calls (depending on
   libaio).
---snip---

Submitted by:	Li, Xiao <intron@intron.ac>
2006-10-15 14:22:14 +00:00
Alexander Leidinger
adfa0adec0 - Add the new files to the linux module.
- Prepare the modules for build on amd64, but don't build them there as
  part of the kernel build yet. The code for the missing symbols on amd64
  isn't committed and it may be solved differently.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-15 13:01:36 +00:00
Doug Ambrisko
060e488247 Enhance the Linux emulation layer to make MegaRAID SAS managements tool happy.
Add back in a scheme to emulate old type major/minor numbers via hooks into
stat, linprocfs to return major/minors that Linux app's expect.  Currently
only /dev/null is always registered.  Drivers can register via the Linux
type shim similar to the ioctl shim but by using
linux_device_register_handler/linux_device_unregister_handler functions.
The structure is:

    struct linux_device_handler {
        char    *bsd_driver_name;
        char    *linux_driver_name;
        char    *bsd_device_name;
        char    *linux_device_name;
        int     linux_major;
        int     linux_minor;
        int     linux_char_device;
    };

Linprocfs uses this to display the major number of the driver.  The
soon to be available linsysfs will use it to fill in the driver name.
Linux_stat uses it to translate the major/minor into Linux type values.

Note major numbers are dynamically assigned via passing in a -1 for
the major number so we don't need to keep track of them.

This is somewhat needed due to us switching to our devfs.  MegaCli
will not run until I add in the linsysfs and mfi Linux compat changes.

Sponsored by:	IronPort Systems
2006-05-05 16:10:45 +00:00
Alexander Leidinger
5c8919adf4 Get rid of the need of COMPAT_43 in the linuxolator.
Submitted by:	Divacky Roman <xdivac02@stud.fit.vutbr.cz>
Obtained from:	DragonFly (some parts)
2006-03-18 18:20:17 +00:00
Alan Cox
972e95c81a opt_vmpage.h is no longer needed here because it is not included by
vm_page.h.
2006-01-26 19:21:27 +00:00
Yaroslav Tykhiy
822923447e Let modules use the kernel's opt_*.h files if built along with
the kernel by wrapping all targets for fake opt_*.h files in
.if defined(KERNBUILDDIR).  Thus, such fake files won't be
created at all if modules are built with the kernel.

Some modules undergo cleanup like removing unused or unneeded
options or .h files, without which they wouldn't build this way
or the other.

Reviewed by:	ru
Tested by:	no binary changes in modules built alone
Tested on:	i386 sparc64 amd64
2005-10-14 23:30:17 +00:00
Warner Losh
e8b2943fab Move MAINTAINER documentation to MAINTAINERS 2005-06-04 16:57:04 +00:00
Warner Losh
3193579b66 o Remove @- from the ln and change it to a -sf. This was bogus, and
regocnized as such at the time.  Now that the other bogons in the
  tree have been fixed, we can remove this ugly kludge.
o Remove stale/bogus opt_foo.h files.  These are left over from
  by-gone resources.  And they point to the need, yet again, to
  improve the build system so meta information is only in one place.

Submitted by: ru
Reviewed by: bde
Approved by: re@ (jhb)
2003-11-19 05:08:27 +00:00
Hajimu UMEMOTO
ca26842e2a Add IPv6 support for Linuxlator.
Reviewed by:	dwmalone
MFC after:	10 days
2003-02-03 17:43:20 +00:00
Peter Wemm
c503d8706c opt_kstack_pages.h is not needed anymore. It would have been a Bad Thing
if it had been different to the running kernel.
2002-09-08 02:59:38 +00:00
Thomas Moestl
27d29f428c Unbreak the modules build:
- add dependencies on opt_cpu.h and opt_kstack_pages.h to the linux module
  Makefile in the i386 case. The latter is needed by an i386-only file, the
  former by the i386 implementation of linux_sysvec.c (opt_cpu.h is used for
  architecture-dependent options, so I added it only for i386, although this
  file is also generated for the alpha).
- add a dependency on opt_kstack_pages.h to the pecoff module Makefile.
2002-09-07 18:02:18 +00:00
Robert Watson
eddc160e00 Introduce support for Mandatory Access Control and extensible
kernel access control.

Invoke appropriate MAC entry points for a number of VFS-related
operations in the Linux ABI module.  In particular, handle uselib
in a manner similar to open() (more work is probably needed here),
as well as handle statfs(), and linux readdir()-like calls.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-01 22:23:02 +00:00
Marcel Moolenaar
c444f61706 Hook up the new linux_ptrace implementation.
PR: 33299
Submitted by: Alexander N. Kabaev <ak03@gte.com>
2002-05-19 01:27:14 +00:00
Dag-Erling Smørgrav
bea8bf9567 (Belatedly) add the required EXPORT_SYMS. I'm not sure the list is complete,
but at least linprocfs works (I haven't had the opportunity to test other
stuff that depends on the linux module, like aac or tdfx)
2002-02-22 18:21:20 +00:00
Mike Smith
ee3c29eb79 genassym depends on the presence of common variables, disable the use
of -fno-common in this case.
2002-01-10 03:52:54 +00:00
Marcel Moolenaar
5c465126bf Pass maintainership over to emulation@FreeBSD.org. It has been fun,
but time and other interests is making it hard. Open the door for
new blood and fresh tactics now that the Linuxulator has had its
facelift.

Thanks to all who contributed during my tour of duty!
2001-11-18 05:45:27 +00:00
Marcel Moolenaar
5002a60f9b Round of cleanups and enhancements. These include (in random order):
o  Introduce private types for use in linux syscalls for two reasons:
   1. establish type independence for ease in porting and,
   2. provide a visual queue as to which syscalls have proper
      prototypes to further cleanup the i386/alpha split.
   Linuxulator types are prefixed by 'l_'. void and char have not
   been "virtualized".

o  Provide dummy functions for all syscalls and remove dummy functions
   or implementations of truely obsolete syscalls.

o  Sanitize the shm*, sem* and msg* syscalls.

o  Make a first attempt to implement the linux_sysctl syscall. At this
   time it only returns one MIB (KERN_VERSION), but most importantly,
   it tells us when we need to add additional sysctls :-)

o  Bump the kenel version up to 2.4.2 (this is not the same as the
   KERN_VERSION MIB, BTW).

o  Implement new syscalls, of which most are specific to i386. Our
   syscall table is now up to date with Linux 2.4.2. Some highlights:
   -  Implement the 32-bit uid_t and gid_t bases syscalls.
   -  Implement a couple of 64-bit file size/offset bases syscalls.

o  Fix or improve numerous syscalls and prototypes.

o  Reduce style(9) violations while I'm here. Especially indentation
   inconsistencies within the same file are addressed. Re-indenting
   did not obfuscate actual changes to the extend that it could not
   be combined.

NOTE: I spend some time testing these changes and found that if there
      were regressions, they were not caused by these changes AFAICT.
      It was observed that installing a RH 7.1 runtime environment
      did make matters worse. Hangs and/or reboots have been observed
      with and without these changes, so when it failed to make life
      better in cases it doesn't look like it made it worse.
2001-09-08 19:07:04 +00:00
Andrew Gallatin
055d495677 Fix linux_getcwd() so that if the cwd isn't cached (__getcwd() fails),
the cwd is looked up inside the kernel. The native getcwd() in libc
handles this in userland if __getcwd() fails.

Obtained from: NetBSD via OpenBSD
Tested by: Chris Casey <chriss@phys.ksu.edu>, Markus Holmberg <markush@acc.umu.se>
Reviewed by: Darrell Anderson <anderson@cs.duke.edu>
PR: kern/24315
2001-08-29 19:05:27 +00:00
Peter Wemm
481d7a5891 Zap obsolete (died with LKM) EXPORT_SYMS variable 2001-02-04 10:52:25 +00:00
Peter Wemm
e4b36f7dd8 It is unlikely that we'll be supporting old-style ZMAGIC linux a.out
binaries on anything but i386.. (ia64, sparc64, etc)  Invert the .if
so that it is inclusive of i386 platforms rather than excluding just
the alpha.
2001-01-07 03:10:15 +00:00
David E. O'Brien
c68159a6d8 Use a consistent style and one much closer to the rest of /usr/src 2001-01-06 14:00:42 +00:00
Marcel Moolenaar
b4c6727a3a Don't auto-generate the syscalls. 2000-12-03 01:30:31 +00:00
Marcel Moolenaar
fa581ad823 Fix dependency for auto-generated files. This commit is
for archiving purposes only; auto-generation is going to
be reverted.

requested by: obrien
submitted: gallatin
2000-12-02 23:47:41 +00:00
Marcel Moolenaar
2bfb7720d6 Fix breakage for parallel builds. 2000-11-05 03:10:45 +00:00
Sheldon Hearn
59807abe47 Retire linux(8). Using shell scripts to load kernel loadable modules is
out of fashion.  This particular case, unlike joy(8) and friends which
are just plain silly, did more than just load a kernel loadable module.
However, /etc/rc and the linux_base port were adjusted a while back to
cope with the absence of this script.

The only outstanding reason to hang on to it would have been for the
linux(8) manual page, which clued folks into the existence of the
Linuxulator.  A new linux(4) was introduced a while back.  It does
a much better job.

This script just isn't useful any more.
2000-11-02 13:48:53 +00:00
Andrew Gallatin
f11610e091 Support for the linux ipc syscalls on the alpha, where each one has
its own syscall rather than going through a demux function like
linux_ipc() on i386
2000-11-01 23:17:31 +00:00
David E. O'Brien
73bf6c9152 Allow the building of the syscall bits at compile time. 2000-11-01 09:23:12 +00:00
David E. O'Brien
23b16c61fa Don't install manpages.
They are being moved elsewhere, and they are causing problems being here.
2000-10-08 16:56:04 +00:00
David E. O'Brien
229edd6df7 Only install secondary components if the destination directory exists.
This may be a WIP, but `make release' needs it sooner than later.
2000-10-04 07:20:24 +00:00
David E. O'Brien
3e0aa01059 Since AlphaLinux is the weirdest Linux of all, probably best to do the
logic this way.
2000-09-06 20:21:55 +00:00
David E. O'Brien
849baab858 Two sys/compat/linux sources aren't applicable on the Alpha at this time. 2000-09-06 20:21:15 +00:00
Marcel Moolenaar
0ec24f5a8a Connect the new sources in /sys/compat/linux and the new file
in /sys/i386/linux.
2000-08-22 06:02:01 +00:00
Bruce Evans
27d3393199 Use the genassym script here too. The linux and svr4 modules were broken. 2000-06-03 07:40:19 +00:00
Peter Wemm
64db83a8ab Use .include <bsd.kmod.mk> to get to ../../*/conf/kmod.mk instead of
encoding the relative path.
2000-05-27 01:14:33 +00:00
Peter Wemm
56ca39961b Pull in sys/conf/kmod.mk, rather than /usr/share/mk/bsd.kmod.mk.
This means that the kernel can be totally self contained now and is not
dependent on the last buildworld to update /usr/share/mk.  This might
also make it easier to build 5.x kernels on 4.0 boxes etc, assuming
gensetdefs and config(8) are updated.
2000-05-04 12:08:52 +00:00
Bruce Evans
27e2d53c58 Compile linux_genassym.c with ordinary ${CFLAGS}. The (small) need for
-U_KERNEL became negative when all all the genassym.c's were converted
to be cross-built.

Use "genassym ... > ${.TARGET}", not "genassym -o $@ ...", so that
genassym(1) doesn't need to support -o.

Removed duplicate -D_KERNEL from flags for compiling linux_locore.s.
2000-01-09 10:04:53 +00:00
Peter Wemm
c447342094 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 05:07:58 +00:00
Marcel Moolenaar
00d6d49adc Use genassym(1) and <sys/assym.h> to generate assembler symbols. 1999-12-23 19:59:47 +00:00
Martin Cracauer
e14140f43e Add a run of Linux ldconfig. 1999-12-13 08:38:22 +00:00