Commit Graph

447 Commits

Author SHA1 Message Date
John Baldwin
eeec6bab2e Prefer the proc lock to sched_lock when testing PS_INMEM now that it is
safe to do so.
2003-04-22 20:01:56 +00:00
John Baldwin
9eb78fcfd9 Synchronize the two linux_clone() implementations which includes a few
minor cleanups in both.
2003-04-18 20:54:41 +00:00
John Baldwin
e5567180fb Don't drop the proc lock just to reacquire it after a few simple assignment
statements.  Just hold the lock the entire time.
2003-04-17 22:18:07 +00:00
John Baldwin
f265002902 Sync up with changes to ptrace() and use P_SHOULDSTOP instead of
a duplicate P_TRACED check.

Submitted by:	marcel
2003-04-15 16:29:39 +00:00
Jeff Roberson
4093529dee - Move p->p_sigmask to td->td_sigmask. Signal masks will be per thread with
a follow on commit to kern_sig.c
 - signotify() now operates on a thread since unmasked pending signals are
   stored in the thread.
 - PS_NEEDSIGCHK moves to TDF_NEEDSIGCHK.
2003-03-31 22:49:17 +00:00
Jeff Roberson
1bf4700bff - Change trapsignal() to accept a thread and not a proc.
- Change all consumers to pass in a thread.

Right now this does not cause any functional changes but it will be important
later when signals can be delivered to specific threads.
2003-03-31 22:02:38 +00:00
John Baldwin
0f9d6538bb Add missing includes from previous commit.
Reported by:	des
2003-03-27 18:18:35 +00:00
John Baldwin
35eb8c5aa2 Add a cleanup function to destroy the osname_lock and call it on module
unload.

Submitted by:	gallatin
Reported by:	Martin Karlsson <mk-freebsd@bredband.net>
2003-03-26 18:29:44 +00:00
Matthew N. Dodd
91d631e536 Print the return value from mmap() in the DEBUG case. 2003-03-25 20:02:55 +00:00
John Baldwin
43cf129c99 Sync up linux and svr compat elf fixup functions for exec(). These
functions are now all basically identical except that alpha linux uses
Elf64 arguments and svr4 and i386 linux use Elf32.  The fixups include
changing the first argument to be a register_t ** to match the prototype
for fixup functions, asserting that the process in the image_params struct
is always curproc and removing unnecessary locking to read credentials as a
result, and a few style fixes.
2003-03-21 19:49:34 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Dag-Erling Smørgrav
1d062e2be8 Clean up whitespace and remove register keyword. 2003-03-03 09:17:12 +00:00
Dag-Erling Smørgrav
4b7ef73d71 More caddr_t removal, in conjunction with copy{in,out}(9) this time.
Also clean up some egregious casts and incorrect use of sizeof.
2003-03-03 09:14:26 +00:00
Alexander Kabaev
ba873f4c18 Correctly map SIGSYS signal to/from Linux.
Submitted by:   "Georg-W. Koltermann" <g.w.k@web.de>
2003-02-24 16:16:45 +00:00
Tim J. Robbins
8fcac23f33 Regen from syscalls.master 1.50. 2003-02-20 13:34:15 +00:00
Tim J. Robbins
c7edd68c94 Mark linux_getpid(), linux_getuid() and linux_getgid() as MPSAFE. 2003-02-20 13:32:48 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Tim J. Robbins
d97ccc7e54 Mark linux_sigpending() as MPSAFE. 2003-02-16 02:31:05 +00:00
Tim J. Robbins
a5ea48d458 Regen from syscalls.master 1.49. 2003-02-16 02:28:35 +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
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Marcel Moolenaar
99d45c5f9d bzero() the sigframe before we fill it. This was not done at all in
linux_rt_sendsig() and only done for the fpstate in linux_sendsig().
2002-11-02 07:41:04 +00:00
Mark Murray
b07cd97ea8 Style(9). Make some function declarations consistent with the rest,
and remove some nearby extraneous {}'s.
2002-10-19 11:57:38 +00:00
Bruce Evans
b45bbfc36c Fixed syntax errors and printf format errors. 2002-10-12 13:48:21 +00:00
Maxim Sobolev
3ad9c842d2 - Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);
- add wrappers for mmap2(2) and ftruncate64(2) system calls;
- don't spam console with printf's when VFAT_READDIR_BOTH ioctl(2) is invoked;
- add support for SOUND_MIXER_READ_STEREODEVS ioctl(2);
- make msgctl(IPC_STAT) and IPC_SET actually working by converting from
  BSD msqid_ds to Linux and vice versa;
- properly return EINVAL if semget(2) is called with nsems being negative.

Reviewed by:	marcel
Approved by:	marcel
Tested with:	LSB runtime test
2002-10-11 11:43:09 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Jonathan Mini
044af7c357 Back out last commit. Linux uses the old 4.3BSD sockaddr format. 2002-09-24 07:03:01 +00:00
Jonathan Mini
d7f94a7a0e Don't use compatability syscall wrappers in emulation code.
This is needed for the COMPAT_FREEBSD3 option split.

Reviewed by:	alfred, jake
2002-09-23 06:17:54 +00:00
Jake Burkholder
05ba50f522 Use the fields in the sysentvec and in the vm map header in place of the
constants VM_MIN_ADDRESS, VM_MAXUSER_ADDRESS, USRSTACK and PS_STRINGS.
This is mainly so that they can be variable even for the native abi, based
on different machine types.  Get stack protections from the sysentvec too.
This makes it trivial to map the stack non-executable for certain abis, on
machines that support it.
2002-09-21 22:07:17 +00:00
Bruce Evans
e9a6d3b44c Removed unused includes. Sorted includes. This is part of removing
includes of <sys/user.h> for its pollution only.  <sys/user.h> wasn't
even used for its pollution here.
2002-09-15 17:45:10 +00:00
Julian Elischer
71fad9fdee Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
Peter Wemm
a9f9df5daf Tidy up some loose ends that bde pointed out. caddr_t bad, ok?
Move fill_kinfo_proc to before we copy the results instead of after
the copy and too late.

There is still more to do here.
2002-09-07 22:31:44 +00:00
Peter Wemm
99a17113cd The true value of how the kernel was configured for KSTACK_PAGES was not
available at module compile time.  Do not #include the bogus
opt_kstack_pages.h at this point and instead refer to the variables that
are also exported via sysctl.
2002-09-07 22:15:47 +00:00
Juli Mallett
9d05b77d4f Diff reduction in comments for filling the siginfo structure - refer to
filling in the POSIX parts, when doing the same thing in every port of
FreeBSD.
2002-09-07 18:56:18 +00:00
Bruce Evans
8a1a68fa84 Include <machine/pcb.h> instead of depending on namespace pollution in
<sys/user.h>.
2002-09-07 14:32:22 +00:00
Peter Wemm
f7749f924c Automatically enable CPU_ENABLE_SSE (detect and enable SSE instructions)
if compiling with I686_CPU as a target.  CPU_DISABLE_SSE will prevent
this from happening and will guarantee the code is not compiled in.

I am still not happy with this, but gcc is now generating code that uses
these instructions if you set CPUTYPE to p3/p4 or athlon-4/mp/xp or higher.
2002-09-07 07:02:12 +00:00
Peter Wemm
7646aefc21 Supposedly linux has added a 6th syscall arg register (%ebp). I am not
100% sure if this is enough, but it will not harm anything.
2002-09-07 04:59:49 +00:00
Peter Wemm
a9148ab103 Give this a self contained a.out coredump routine.
XXX freebsd-aout coredumps for a linux-aout binary is a bit pointless.
2002-09-07 01:29:21 +00:00
Bruce Evans
4db068aabc Include <sys/systm.h> for the definition of offsetof() instead of depending
on the definition being misplaced in <sys/types.h>.  The definition probably
belongs in <sys/stddef.h>.
2002-09-05 12:58:57 +00:00
Ian Dowse
012e544f12 Split up ptrace() into a wrapper that does the copying to and from
user space and a kern_ptrace() implementation. Use the kern_*()
version in the Linux emulation code to remove more stack gap uses.

Approved by:	des
2002-09-05 01:02:50 +00:00
Ian Dowse
206a5d3a0c Use the new kern_* functions to avoid the need to store arguments
in the stack gap. This converts most VFS and signal related system
calls, as well as select().

Discussed on:	-arch
Approved by:	marcel
2002-09-01 22:30:27 +00:00
Jake Burkholder
f36ba45234 Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to
sysentvec.  Initialized all fields of all sysentvecs, which will allow
them to be used instead of constants in more places.  Provided stack
fixup routines for emulations that previously used the default.
2002-09-01 21:41:24 +00:00
Jeff Roberson
619eb6e579 - Hold the vnode lock throughout execve.
- Set VV_TEXT in the top level execve code.
 - Fixup the image activators to deal with the newly locked vnode.
2002-08-13 06:55:28 +00:00
Jeff Roberson
e6e370a7fe - Replace v_flag with v_iflag and v_vflag
- v_vflag is protected by the vnode lock and is used when synchronization
   with VOP calls is needed.
 - v_iflag is protected by interlock and is used for dealing with vnode
   management issues.  These flags include X/O LOCK, FREE, DOOMED, etc.
 - All accesses to v_iflag and v_vflag have either been locked or marked with
   mp_fixme's.
 - Many ASSERT_VOP_LOCKED calls have been added where the locking was not
   clear.
 - Many functions in vfs_subr.c were restructured to provide for stronger
   locking.

Idea stolen from:	BSD/OS
2002-08-04 10:29:36 +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
Robert Drehmel
aaaefc6b56 Enable emulation of the F_GETLK64, F_SETLK64, and F_SETLKW64
lock commands arguments to linux_fcntl64().
2002-07-09 15:57:12 +00:00
Julian Elischer
e602ba25fd Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00
Jens Schweikhardt
21dc7d4f57 Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by:	des
MFC after:	3 weeks
2002-06-02 20:05:59 +00:00
Marcel Moolenaar
1b5aeb4347 o Fix race condition caused by doing ptrace() for permission
checking, followed by a lookup of the process. Do not call
   ptrace() for permission checking, but do it inline.
   Spotted by: rwatson

o  While here, copy-in arguments before we lock. This fixes
   a possible permanent lock.

Reviewed by: rwatson
2002-05-19 19:35:36 +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