Commit Graph

318 Commits

Author SHA1 Message Date
jmallett
96c5ede7ef Ressurect libkvm use of the bitmasked signal list in the kernel, now that
reliable signal queues are gone.
2002-10-01 17:17:32 +00:00
jmallett
3117764200 Fix typo, should zero the kinfo_proc's siglist, not the real one's - the real
one doesn't have one.

Submitted by:	jake, scottl
Big pointed hat that lands one in the badcommitters box to:	jmallett
2002-10-01 00:28:14 +00:00
jmallett
3fbea8bffe The list of queued signals is not, can not, and will not be exported to the
userland.  If someone wants to implement a backup p_siglist in the kernel
for compatability and to export one could.  For now, just tell KVM to hand
an empty signal set off to the userland.
2002-09-30 21:40:33 +00:00
bde
b73776ee68 Fixed messes involving $FreeBSD$ starting with one left in the copyright
after adding __FBSDID().

Garbage-collected kvm_readswap().  This was once used by kvm_uread(), but
kvm_uread() now just reads /proc/<pid>/mem and procfs hopefully handles
swapped out pages.
2002-09-16 08:22:57 +00:00
julian
c7e9e7e892 Allocate KSEs and KSEGRPs separatly and remove them from the proc structure.
next step is to allow > 1 to be allocated per process. This would give
multi-processor threads. (when the rest of the infrastructure is
in place)

While doing this I noticed libkvm and sys/kern/kern_proc.c:fill_kinfo_proc
are diverging more than they should.. corrective action needed soon.
2002-09-15 23:52:25 +00:00
nectar
c9164bea19 In kvm_openfiles/kvm_open, mark the file descriptors as close-on-exec.
Applications can not do this themselves, as the descriptors are hidden
behind the opaque `kvm_t' type.
2002-09-11 16:41:39 +00:00
julian
5702a380a5 Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
peter
2f3c7ba63d Hopefully unbreak world. ke_slptime is gone. It should really have been
looking at p_ksegrp.kg_slptime anyway.
2002-08-30 02:18:38 +00:00
alfred
30d3848aee Allow one to grab the definition of struct ucred by defining _WANT_UCRED
instead of forcing _KERNEL.

Move the include of sys/_label.h in ucred.h under the
_KERNEL || _WANT_UCRED case.
2002-08-28 20:39:48 +00:00
kris
3f7bd9e0a1 &x is not a format string 2002-08-24 07:15:55 +00:00
mike
9e6f796b0d o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
alfred
997e76e7c0 Hide 'struct ucred' behind '#ifdef _KERNEL', this should stop userland
from attempting to use it for good.  There is a catch, kvm_proc.c needs
to '#define _KERNEL' to get at the ucred.

Requested by: rwatson
2002-08-16 07:01:43 +00:00
jake
c154930f19 Auto size available kernel virtual address space based on phsyical memory
size.  This avoids blowing out kva in kmeminit() on large memory machines
(4 gigs or more).

Reviewed by:	tmm
2002-08-10 22:14:16 +00:00
julian
cc3a647e18 Don't even read in the thread if it is a zombie process. 2002-06-30 20:13:53 +00:00
julian
812b8c7762 grow a brain and do this right. 2002-06-30 17:06:46 +00:00
julian
6f349b9e50 Don't follow non existant thread pointers (e.g. for zombies) 2002-06-30 08:11:30 +00:00
julian
aa2dc0a5d9 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
alfred
1ee311b26d Assume __STDC__, remove non-__STDC__ code.
Submitted by: keramida
2002-05-28 17:03:12 +00:00
jake
db4b2fc42b Catch up to tte.h changes. 2002-05-21 02:22:49 +00:00
obrien
11c66c495e Stub out _kvm_mdopen, we don't the same constants as NetBSD 2002-05-15 09:56:40 +00:00
obrien
95ae68e994 Add a PowerPC machdep for kvm.
Obtained from:	NetBSD (rev 1.4, pre-UVM)
2002-05-15 09:55:41 +00:00
dd
4abe7f3290 Fix (for the second time) kvm_getprocs() for the case where no
processes match the given criteria.  Since revision 1.60 of malloc.c,
malloc() and friends return an invalid pointer when given a size of 0.
kvm_getprocs() uses sysctl() with a NULL oldp argument to get an
initial size, but does not check whether it's 0 before passing it to
realloc() (via _kvm_realloc()).  Before the aforementioned malloc()
change, this resulted in a minimal allocation made and a valid poitner
returned, but now results in an invalid, but non-NULL, pointer being
returned.  When this is passed to sysctl(), the latter returns EFAULT
(as it should).
2002-04-07 04:47:58 +00:00
obrien
e2881f49cc Remove multi-line __P() usage. 2002-03-22 09:22:15 +00:00
obrien
fd9d7ac0ed Remove __P() usage. 2002-03-21 23:54:04 +00:00
obrien
084b4588f2 Remove 'register' keyword. 2002-03-21 23:39:28 +00:00
green
7f5881c8e0 Also blindly attempt to fix broken world with respect to proc.p_runtime
changes.
2002-02-22 19:10:09 +00:00
julian
2cc6336eb4 I THINK this fixes 'make world'
I'll know as soon as I re-import it and compile it.. :-)
 There is no longer a 'pri' strict in the proc struct.
 the fields are scattered between the ksegrp and thread in question.
2002-02-13 00:10:04 +00:00
julian
fce570367d pre-emptively fix a KSE/M3 problem.
Make a slight change so that libkvm reaches the main thread via the
linked list, rather than assuming it is in the proc structure. Both
conditions are true in -current but only the first will be true in
the KSE M3 world.
2002-02-07 20:28:25 +00:00
ru
c4b08ff306 Finish cleanup in kvm.c revisions 1.10 and 1.11 -- mark sf (swapfile)
argument to kvm_open() and kvm_openfiles() as unused.

BSD didn't read swap since kvm.c CSRG revision 5.21 (u-area is pageable
under new VM.  no need to read from swap.)

The old !NEWVM code was removed in CSRG revision 5.23 (~ten years ago).
2002-01-22 10:07:03 +00:00
jake
4c18b11dbd Adapt to new kernel tsb structure. 2001-12-29 06:43:36 +00:00
ru
e652be39ea s/processes/files/ inherited from kvm_getprocs(3).
PR:		docs/32252
Submitted by:	tobez
2001-11-24 15:38:28 +00:00
jhb
7d5b8c2066 Include sys/param.h instead of sys/types.h to get the definition of the
MIN() macro.

Pointy hat to:	rwatson
2001-11-20 08:26:37 +00:00
rwatson
f06ddbc3b4 o Cleanup of includes: user.h may be a catch-all, but that's not
entirely desirable.  Back out previous commit, and clean up includes
  to be more minimal.

Submitted by:	bde
2001-11-19 21:14:50 +00:00
rwatson
a9c3d65330 #include <sys/user.h> rather than individually including a plethora
of kernel include files, reducing the replication of kernel include
dependency information in userland.

Obtained from:	TrustedBSD Project
2001-11-19 15:26:36 +00:00
jake
b16b5f3243 libkvm for sparc64. Only works for kernel memory so far. 2001-11-18 21:01:09 +00:00
peter
a917feacce kern.ps_arg_max_cache is a long, not an int. I believe this is half of
what broke ps on ia64.  It probably also broke on alpha, but the fallback
method of using lseek/read on /proc/*/mem to read ps_strings seems to
work there.  It doesn't on ia64 yet.
2001-11-08 00:23:06 +00:00
dfr
36e45996ff Implement va->pa translation for kernel virtual addresses. This is
untested - it only seems to be used for crashdumps.
2001-10-25 09:08:21 +00:00
dfr
f907f56cde Partially port kvm to ia64 - virtual to physical translation is incomplete. 2001-10-23 11:05:35 +00:00
bde
73b394228c Backed out "Compensate for header dethreading [mistakes]" mistakes in
alpha files too.
2001-10-13 04:38:46 +00:00
bde
229c3ac7c3 Compensate for "Compensate for header dethreading" by backing it out. 2001-10-10 17:48:44 +00:00
ru
623da62a5a mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
dillon
41abc6d4e4 Implement __FBSDID() 2001-09-16 21:35:07 +00:00
julian
5596676e6c KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
peter
3d8ba93519 Make ps -M corefile work again. This has been broken for quite some time.
kvm_proclist() was aborting when it saw the ithreads with no pgrp.
2001-08-24 09:43:44 +00:00
peter
89bd0a4338 Dynamically adjust to the value of KERNBASE in a crashdump, with
a fallback for old kernels without the "kernbase" symbol.
2001-08-24 08:53:30 +00:00
kris
110fc843a0 Mark some functions as __printflike() and/or taking const char * arguments
instead of char *.

MFC after:	2 weeks
2001-08-20 12:53:36 +00:00
ru
24c7b0a61d mdoc(7) police: s/BSD/.Bx/ where appropriate. 2001-08-14 10:01:54 +00:00
ru
7221cd94bd mdoc(7) police: fixed the "new sentence" bogons. 2001-08-10 15:03:10 +00:00
dd
a145482cf6 Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
dd
eaa6ee03b8 mdoc(7) police: remove extraneous .Pp before and/or after .Sh. 2001-07-09 09:54:33 +00:00
tmm
6e0384074f Change this to support the new way swap device information is exported
via sysctl, and clean up some style and (size_t != int) issues.
2001-06-01 22:57:07 +00:00
rwatson
f504530d9f o Merge contents of struct pcred into struct ucred. Specifically, add the
real uid, saved uid, real gid, and saved gid to ucred, as well as the
  pcred->pc_uidinfo, which was associated with the real uid, only rename
  it to cr_ruidinfo so as not to conflict with cr_uidinfo, which
  corresponds to the effective uid.
o Remove p_cred from struct proc; add p_ucred to struct proc, replacing
  original macro that pointed.
  p->p_ucred to p->p_cred->pc_ucred.
o Universally update code so that it makes use of ucred instead of pcred,
  p->p_ucred instead of p->p_pcred, cr_ruidinfo instead of p_uidinfo,
  cr_{r,sv}{u,g}id instead of p_*, etc.
o Remove pcred0 and its initialization from init_main.c; initialize
  cr_ruidinfo there.
o Restruction many credential modification chunks to always crdup while
  we figure out locking and optimizations; generally speaking, this
  means moving to a structure like this:
        newcred = crdup(oldcred);
        ...
        p->p_ucred = newcred;
        crfree(oldcred);
  It's not race-free, but better than nothing.  There are also races
  in sys_process.c, all inter-process authorization, fork, exec, and
  exit.
o Remove sigio->sio_ruid since sigio->sio_ucred now contains the ruid;
  remove comments indicating that the old arrangement was a problem.
o Restructure exec1() a little to use newcred/oldcred arrangement, and
  use improved uid management primitives.
o Clean up exit1() so as to do less work in credential cleanup due to
  pcred removal.
o Clean up fork1() so as to do less work in credential cleanup and
  allocation.
o Clean up ktrcanset() to take into account changes, and move to using
  suser_xxx() instead of performing a direct uid==0 comparision.
o Improve commenting in various kern_prot.c credential modification
  calls to better document current behavior.  In a couple of places,
  current behavior is a little questionable and we need to check
  POSIX.1 to make sure it's "right".  More commenting work still
  remains to be done.
o Update credential management calls, such as crfree(), to take into
  account new ruidinfo reference.
o Modify or add the following uid and gid helper routines:
      change_euid()
      change_egid()
      change_ruid()
      change_rgid()
      change_svuid()
      change_svgid()
  In each case, the call now acts on a credential not a process, and as
  such no longer requires more complicated process locking/etc.  They
  now assume the caller will do any necessary allocation of an
  exclusive credential reference.  Each is commented to document its
  reference requirements.
o CANSIGIO() is simplified to require only credentials, not processes
  and pcreds.
o Remove lots of (p_pcred==NULL) checks.
o Add an XXX to authorization code in nfs_lock.c, since it's
  questionable, and needs to be considered carefully.
o Simplify posix4 authorization code to require only credentials, not
  processes and pcreds.  Note that this authorization, as well as
  CANSIGIO(), needs to be updated to use the p_cansignal() and
  p_cansched() centralized authorization routines, as they currently
  do not take into account some desirable restrictions that are handled
  by the centralized routines, as well as being inconsistent with other
  similar authorization instances.
o Update libkvm to take these changes into account.

Obtained from:	TrustedBSD Project
Reviewed by:	green, bde, jhb, freebsd-arch, freebsd-audit
2001-05-25 16:59:11 +00:00
ru
52a9144c8b Removed -I${.CURDIR}/.../sys from CFLAGS. 2001-05-18 13:41:42 +00:00
dwmalone
617c2aa875 Avoid dividing by zero if kd->procbase->ki_structsize is uninitalised.
(I'm testing the numerator rather than the denominator, which looks
weird, but is the right thing to do here).
2001-05-03 11:26:46 +00:00
mjacob
946a40b5f7 Do the alpha dance for the change MarkM hath made on the i386 side. 2001-05-02 07:10:52 +00:00
dwmalone
32ae974b98 Don't give a warning about "proc size mismatch" if no struct were
returned. (This arose on a list about a month ago when someone
found bogus warnings if they used "ps -Uuser_with_no_processes".)

Approved by:	mckusick
2001-05-01 10:34:15 +00:00
markm
ddbd7bc718 Compensate for header dethreading. 2001-05-01 09:24:15 +00:00
ru
25ef23ac1c MAN[1-9] -> MAN. 2001-03-27 17:27:19 +00:00
peter
3f393d4b31 Find <libkvm.h> in the source tree. This helps standalone builds. 2001-03-21 22:52:48 +00:00
rwatson
78bbdcc2c4 Adapt libkvm_getswapinfo() to make use of recently committed vm and swap
sysctls exporting swap information.  When running on a live kernel,
the sysctl's will now be used instead of kvm_read, allowing consumers of
this interface to run without privilege (setgid kmem).  Retain the
ability to run on coredumps, or on a kernel using kmem if explicitly
pointed at one.

A side effect of this change is that kvm_getswapinfo() is faster now in
the general case. If the SWIF_DUMP_TREE flag is given (pstat -ss does
this), the radix tree walker, which still uses kvm_read in any case, is
invoked, and therefore does require privilege.

Submitted by:	Thomas Moestl <tmoestl@gmx.net>
Reviewed by:	freebsd-audit
2001-02-23 18:49:16 +00:00
jake
0dc4d20fbd Catch up to new priority interface. 2001-02-12 00:21:38 +00:00
ru
8a6f8b5fe4 mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:38:02 +00:00
jhb
91e8162c0a Add a new item to kinfo_proc: ki_sflag to mirror p_sflag. 2001-01-24 12:49:52 +00:00
wollman
ff19d89bc6 Revert rev. 1.27. This file only included <sys/select.h> because of
brokenness introduced in <sys/select.h> rev. 1.8 which is now OBE.
<sys/tty.h> and <sys/selinfo.h> together do the right thing.
2001-01-20 03:02:46 +00:00
ru
3d8401c62e Prepare for mdoc(7)NG. 2001-01-16 09:08:22 +00:00
ben
cc8f3da609 Use macro API to <sys/queue.h> 2000-12-30 21:52:34 +00:00
mckusick
cba301121b Change the proc information returned from the kernel so that it
no longer contains kernel specific data structures, but rather
only scalar values and structures that are already part of the
kernel/user interface, specifically rusage and rtprio. It no
longer contains proc, session, pcred, ucred, procsig, vmspace,
pstats, mtx, sigiolst, klist, callout, pasleep, or mdproc. If
any of these changed in size, ps, w, fstat, gcore, systat, and
top would all stop working. The new structure has over 200 bytes
of unassigned space for future values to be added, yet is nearly
100 bytes smaller per entry than the structure that it replaced.
2000-12-12 07:25:57 +00:00
obrien
c2ee1dcc02 Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.
2000-12-09 09:35:55 +00:00
alfred
71d563e06c remove unneded sys/ucred.h include 2000-11-30 18:34:08 +00:00
ru
a6f5d950d8 Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
green
b98ae04f64 Good, fixing the header showed incorrect usage of it! #define _KERNEL
here for the include of sys/select.h.
2000-08-06 17:03:09 +00:00
kris
4e7ee5ff5d Limit the amount of data copied to the error buffer to _POSIX2_LINE_MAX.
This is the documented size which the user-provided buffer must be.
2000-08-04 09:23:07 +00:00
kris
ab3a6fa241 Remove obsolete reference to /var/db/kvm_kernel.db
Reviewed by:	peter
2000-05-07 02:16:43 +00:00
phantom
46b3916daf Introduce .Lb macro to libkvm manpages.
Use .Pa macro for "enlighting" path
2000-04-22 16:10:12 +00:00
jlemon
68b8d52e43 Remove unneeded #include 2000-04-16 17:36:48 +00:00
nectar
4cb901960c Change the return value of kvm_read/kvm_write to be -1 on error, to
match the documented interface.

Previously it returned 0 on error.

PR:		bin/10511
2000-03-31 15:04:25 +00:00
obrien
cc06168002 -Wall, which caught a real bug where buflen wasn't being set properly. 2000-03-27 00:33:45 +00:00
peter
49ba463e5b Correct an error message presumably as a result of cut/paste.
kvm_getfiles() referred to itself as kvm_getprocs().
2000-02-18 16:39:00 +00:00
chris
72dd5f5031 Repair misspelled `.Pp' directive:
.PP -> .Pp
2000-02-14 01:35:15 +00:00
rgrimes
c127d0e61e Replace beforeinstall target with new variables used by .mk system.
Reviewed by:	marcel, and make world
2000-01-14 07:57:47 +00:00
bde
46f9930cf5 Fixed missing includes in synopsis. <sys/file.h> went missing when KERNEL
was not updated to _KERNEL.  Actually including <sys/file.h> as specified
never actually worked, since a prerequisite was missing.
2000-01-05 16:38:58 +00:00
peter
d53e4c1d80 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
peter
047fa82dd0 Use kldsym(2) to lookup symbol values. This avoids the kvm_mkdb juggling
and is module aware.  Yes, this means that kvm_nlist(3) will find symbols
in loaded modules.  The emulation of the nlist struct is pretty crude but
seems to work well enough for all the users in the tree that I found.
1999-12-27 07:14:58 +00:00
phk
9809b71a89 Report swapdevices as cdevs rather than bdevs.
Remove unused dev2budev() function.
1999-11-29 21:37:18 +00:00
phk
cc6b664e2e Introduce commandline caching in the kernel.
This fixes some nasty procfs problems for SMP, makes ps(1) run much faster,
and makes ps(1) even less dependent on /proc which will aid chroot and
jails alike.

To disable this facility and revert to previous behaviour:
        sysctl -w kern.ps_arg_cache_limit=0

For full details see the current@FreeBSD.org mail-archives.
1999-11-16 20:31:58 +00:00
peter
d4305bf955 Delete the sf (swapfile) arg to an internal function that used to point to
/dev/drum but has not been used for a LONG time.
Add $FreeBSD$
1999-10-11 05:01:17 +00:00
peter
aa72d76380 Install <kvm.h> from here (after repo copy) so it's all in one package. 1999-10-04 14:56:04 +00:00
peter
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
peter
d4e3ebaf0a $Id$ -> $FreeBSD$ 1999-08-27 23:45:13 +00:00
bde
1e9a248e26 Don't open the swap file. The open descriptor for it hasn't been used
for over 5 years since we switched to using procfs for kvm_uread().
This cleanup was motivated by recent breakage of the default swap file
(/dev/drum) when swapon() has not been called.
1999-08-25 03:01:54 +00:00
nik
f7a8bc4c04 Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

     .\"    $Id$
     .\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by:            bde
1999-07-12 20:50:10 +00:00
peter
280d1557df Tidy up references to <sys/rlist.h> and support for the old swap management
that went away in January.
1999-05-11 14:32:18 +00:00
bde
fbe37a582c Oops, the previous log message should have been:
Include <machine/ansi.h> so that this file is self-sufficient again.
Rev.1.6 doesn't do this as claimed unless <nlist.h> has nonstandard
pollution.

Cleaned up includes.
1999-04-10 03:49:43 +00:00
bde
b624ddd420 Declare mkstemps(). 1999-04-09 15:06:56 +00:00
gallatin
1972c6ba27 make libkvm capable of dealing with a crashdump on alphas
Reviewed by: Doug Rabson <dfr@nlsystems.com>
1999-03-12 14:47:33 +00:00
bde
989e487b34 Don't use u_long in the synopsis, since u_long is not part of the kvm
interface.
1999-03-05 17:32:53 +00:00
dt
9fb9019141 From rev. 1.12 of usr.sbin/pstat/pstat.c by phk:
Reflect the fact that we do not swap on the first <dmmax> blocks of a
swapdev, to protect disklabels and other such magic stuff.
1999-02-14 21:42:05 +00:00
dillon
4ddefa4315 Handle case where no swap is configured 1999-02-06 06:31:57 +00:00
bde
76aad88d08 Removed evil typedef kvm_swap_t and all uses of it (not many).
Hoped for by:	wollman
1999-01-27 11:29:15 +00:00
dillon
850c26db34 Fix swap radix tree dump formatting ( pstat -ss ), it was printing the
wrong radix for recursive subnodes.
1999-01-25 04:07:07 +00:00
bde
de58abe0f0 Fixed missing cross reference to kvm_getfiles.
This man page may be overdoing the cross references by referencing
man pages that are just links to other pages that are referenced.

kvm_uread() is still completely undocumented in kvm*.3.
1999-01-23 08:12:12 +00:00
bde
5973235153 Fixed unsorting of SRCS and MAN3 in previous commit.
Sorted MLINKS.
1999-01-23 07:55:15 +00:00
bde
bc1d62ba58 Fixed unsorting of cross references in previous commit. 1999-01-23 07:34:56 +00:00
dillon
3434445aa2 Oops, forgot this. Needed by libkvm. 1999-01-23 04:58:35 +00:00
dillon
23112681aa Fix type-o's in manual 1999-01-22 11:03:55 +00:00
dillon
34551cfe05 Add SWIF_DEV_PREFIX flag to add "/dev/..." to device name. 1999-01-22 10:57:03 +00:00
dillon
247543f77e Implement kvm_getswapinfo() libkvm function. Will be used by
pstat, top, and systat.
1999-01-22 10:36:04 +00:00
bde
32cca8fd9b <sys/types.h> isn't a prerequisite for <kvm.h>. 1998-12-16 19:12:14 +00:00
bde
34629b4155 The previous commit was bogus. <stdlib.h> was never a prerequisite
for <kvm.h> or kvm_getloadavg(), and <sys/types.h> was only a
prerequisite for <kvm.h> when <kvm.h> was broken.
1998-12-16 19:04:54 +00:00
bde
933cffdd82 Declare size_t and ssize_t if they are not already declared, so that
<kvm.h> is self-sufficient again.

Moved typedefs and forward struct declarations out of __BEGIN_DECLS/
__END_DECLS.

Don't comment out the prototype for kvm_uread().  This was a 4 year
old kludge for previous breakage of self-sufficiency.  The prototypwe
was broken instead.

Fixed bitrot (const poisoning) in the type of kvm_uread().

Fixed order of the declaration of kvm_uread().
1998-12-16 18:59:47 +00:00
bde
28d6420f45 Adjust for kern.ps_strings and PS_STRINGS not being a pointer. This
fixes a type mismatch in the call to kvm_uread().  The bug has gone
undetected for almost 3 years because kvm_uproc()'s protoype has been
disabled for almost 4 years.

Trust sysctlbyname() to work properly if it succeeds.

Fixed style bugs in revs. 1.19 and 1.22.
1998-12-16 18:31:51 +00:00
dillon
439b1a517e Add required #include references to manual page 1998-12-13 02:32:59 +00:00
des
8eaab1764c Avoid the "Cannot allocate memory" problem that appears on heavily
loaded systems by retrying the sysctl() with a larger buffer if it
fails with ENOMEM. For good measure, allocate 10% more memory than
sysctl() claims is necessary.

PR:		8275
Reviewed by:	David Greenman <dg@freebsd.org>
1998-10-12 20:36:33 +00:00
dfr
7a96388db1 Adjust the declarations of kvm_read and kvm_write to match reality a little
closer.
1998-09-16 09:30:14 +00:00
imp
bfe73fd683 Replace memory leaking instances of realloc with non-leaking reallocf.
In some cases replace if (a == null) a = malloc(x); else a =
realloc(a, x); with simple reallocf(a, x).  Per ANSI-C, this is
guaranteed to be the same thing.

I've been running these on my system here w/o ill effects for some
time.  However, the CTM-express is at part 6 of 34 for the CAM
changes, so I've not been able to do a build world with the CAM in the
tree with these changes.  Shouldn't impact anything, but...
1998-09-16 04:17:47 +00:00
kato
20d8a739bd Change ${MACHINE} into ${MACHINE_ARCH} to support MACHINE=pc98. 1998-09-09 11:27:33 +00:00
dfr
55dcde8578 The length argument to sysctl is now size_t. 1998-08-25 07:52:33 +00:00
gpalmer
d804b140d6 Nuke unsupported architecture files 1998-08-22 14:34:59 +00:00
dfr
0828d02efd Add an alpha machdep for kvm. The vatop functions are stubbed out for
now (mainly because I haven't ported them from the NetBSD crash dump
environment).

Obtained from: NetBSD
1998-08-15 12:12:22 +00:00
phk
6658078ab3 Allow /dev/null as path for the "/dev/mem" file, and assume that people
know what they're doing if they do that.  This will allow ps to use
the kvm_proc.c bits without having access to /dev/mem.

Fix kvm_proc.c to not need /dev/mem for access to argv/envp
1998-06-30 21:29:44 +00:00
bde
ff6b6a564b Fixed bugs in the conversion of kvm to to use procfs in rev.1.3. All
are in kvm_uread():
- the setting of errno before checking it in the lseek() was lost.
- EOF handling was lost.  kvm_uread() retried forever on EOF.  EOF is
  not really an error, but report it one as in rev.1.2.
- reporting of errno after a read error was lost.

Fixed style bugs in rev.1.3 and rev.1.12.

Not fixed: errno is not reported after lseek() failures.
1998-01-16 16:45:05 +00:00
bde
fb2ef58cd8 -I${DESTDIR}/sys -> -I${.CURDIR}/../../sys. 1997-08-26 14:13:02 +00:00
tegge
3dbac0faf6 Copy code from gnu/usr.bin/gdb/gdb/kvm-fbsd.c to deal with 4 MB pages. 1997-08-17 17:42:59 +00:00
asami
ae7f8b05ac Add ${DESTDIR} in front of absolute path. 1997-07-18 06:32:39 +00:00
tegge
6f1b5cd02c Fill in parent process id when reading process information from a
memory dump. This fixes one of the problems noted in PR kern/3581.
1997-06-25 20:56:48 +00:00
bde
4d078cb8d9 Fixed #include and/or prototype bugs in synopsis. 1997-04-19 15:57:20 +00:00
bde
c0329bd830 Fixed #include and/or prototype bugs in synopsis. 1997-04-13 14:10:05 +00:00
peter
6b08958c64 Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
wosch
6d0dbd7455 Sort cross references. 1997-01-20 23:23:22 +00:00
jkh
808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
mpp
dce30739e1 Fix the short description of kvm_getloadavg(3) to reflect
what the function really does.

Also fix a small mdoc problem I noticed while in there.

Obtained from: NetBSD-bugs (NetBSD PR#3077)
1997-01-02 20:16:20 +00:00
ache
26976c4aee kvm_malloc:
When malloc fails. don't try to memset NULL pointer, it cause core dump
Replace malloc+memset with calloc, theoretically it can do some
optimization of zeroing process internally
Improve error diagnostic
1996-11-11 08:28:47 +00:00
peter
2ed8e17b91 Implement virtual-to-physical address mapping for the kvm library on
dead kernel debugging.  The previous code was a "do nothing".

The most obvious side effect of this is that you can now do things like
this and reasonably expect them to work:
  dmesg -M /var/crash/vmcore.3 -N /var/crash/kernel.3
  ps -axl -M /var/crash/vmcore.3 -N /var/crash/kernel.3

A good deal of this was lifted from the gdb code to do this, as well as
from NetBSD's libkvm (which has completely different VM macros)
1996-10-07 20:17:50 +00:00
jkh
c4d4a99d31 General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +00:00
phk
c6eabb9274 Pass correct length OID to kernel for KERN_PROC_ALL. 1996-06-06 17:16:52 +00:00
phk
e4ee69bc24 NBPG -> PAGE_SIZE 1996-05-02 09:23:36 +00:00
hsu
5f68927341 From Lite2: proc and file LIST changes 1996-03-11 05:34:46 +00:00
peter
4223430ef2 If the two recently added sysctl variables exist, use those rather than
the statically compiled PS_STRINGS and USRSTACK variables.  This prevents
programs using setproctitle from coredumping if the kernel VM is increased,
and stops libkvm users (w, ps, etc) from needing to be recompiled if only
the VM layout changes.
1996-02-24 14:37:30 +00:00
mpp
279ebaafa0 Add some missing MLINKS, correct some cross references, correct some
file locations and some minor formatting/style problems.
1996-02-09 16:20:10 +00:00
mpp
0629c08669 Another round of spelling fixes. 1996-01-30 18:13:11 +00:00
peter
09bad61c4c Extract the login name when doing a ps on a dead kernel. 1996-01-01 17:08:17 +00:00
peter
c141a4f4bb Cosmetic cleanup and documentation of kvm_argv.. Hopefully the flow of
the routine can be much more easily understood now... :-)
1995-12-16 09:25:17 +00:00
peter
109e4a7676 phkmalloc strikes again! :-) Another use of un-cleared returns from
malloc squashed...
1995-12-09 04:45:50 +00:00
peter
2e32505a55 Updates to read the extra indirection in ps_strings. Note that any
static executables that depend on this will need to be relinked (ie: do
this before 'ps'), but the dynamic linked stuff should be OK (ie: 'w')

Obtained from: NetBSD (not much point reinventing the wheel.. :-)
1995-12-09 04:42:51 +00:00
bde
aee82e6b05 Removed unnecessary include of <sys/tty.h>. tty.h apparently once had
some user interfaces in it.  It no longer does.
1995-10-22 18:52:23 +00:00
bde
769198d96b 41 headers must be implicitly included and one more (<sys/param.h>) must
be explicitly included before kvm_getprocs() can be used.
1995-06-25 03:35:49 +00:00
joerg
7343a5be69 Update the man page for kvm_getprocs.3 to reflect our sysctl-based
kvm mechanism.

Submitted by:	(Vic Abell) <abe@cc.purdue.edu>
1995-06-24 18:53:09 +00:00
rgrimes
f05428e4cd Remove trailing whitespace. 1995-05-30 05:51:47 +00:00
rgrimes
c32009c986 Comment out declaration of kvm_uread until it can be fixed correctly. 1995-03-20 16:35:11 +00:00
rgrimes
7b174519a7 Change u_long to unsigned long to be consistent. 1995-03-20 16:17:50 +00:00
joerg
af609f7535 libkvm exports kvm_uread(), so do declare it in the header file.
Got apparent by Philippe's -Wall patch for /usr/bin.
1995-03-19 13:36:49 +00:00
joerg
d2c55744e4 Cast the offset of one call to lseek() to off_t, as it's already done
in all other places here.

This is a hack, the interface should be changed to use off_t's
everywhere around, but this will require to update all the programs
that happen to use libkvm.
1995-03-19 13:33:05 +00:00
bde
a43c038744 Fix previous fix to agree with the man page - don't report errors in
kvm_open() if errstr is NULL.
1995-02-25 16:44:01 +00:00
phk
5ca4449181 Remove some unused variables and fix two blatant core dump triggers. 1995-02-24 08:15:27 +00:00
phk
e91914fc35 A semicolon was lost. 1994-11-07 19:54:55 +00:00
jkh
233f442355 From: "gj%pcs.dec.com@inet-gw-1.pa.dec.com" <garyj@rks32.pcs.dec.com>
Given the right circumstances, a call to kvm_open can result in a core
dump.

The diff belows fixes this (note that this change is already in the
NetBSD code). Could somebody apply this?

Gary J.
Submitted by:	gj
1994-11-07 09:42:24 +00:00
dg
4880d363c5 Fix from Gary Jennejohn - use 'cp' not 'buf' in read call. Oops. 1994-11-02 16:38:51 +00:00
sos
c2ac1cee30 Added spare space on the usr stack. Used in ibcs2 emulation. 1994-10-09 22:03:58 +00:00
dg
e16d30399d Don't include sys/exec.h. 1994-09-25 21:11:36 +00:00
wollman
193a8fae68 Get rid of _PATH_UNIX completely; use getbootfile(3) instead.
DANGER WILL ROBINSON!
_PATH_UNIX is currently defined as the literal string "don't use this".
I am of two minds about this myself, but wanted to get something into the
tree as quickly as possible.
1994-09-24 00:08:43 +00:00
dg
89be8c23d3 Made kvm routines use procfs to get out process data such as argument
strings.
1994-08-11 13:38:23 +00:00
dg
6b466831f4 Converted 'vmunix' to 'kernel'. 1994-08-05 09:14:37 +00:00
wollman
ac2dffffaf Make it work with our make macros. 1994-08-05 01:42:04 +00:00
rgrimes
01c9385475 Fix kvm_i386.c just enough to make it compile and return lots of errors
when called.  Noop out swapread in kvm_proc.c as our vm system is
different.
1994-05-28 05:48:30 +00:00
rgrimes
0095655af3 This is a COPY of kvm_hp300.c, soon to be patched to sorta work with
the i386 port.
1994-05-28 04:34:59 +00:00
rgrimes
e043687c62 This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.
1994-05-27 05:00:24 +00:00
rgrimes
be22b15ae2 BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00
rgrimes
8b2b31265d BSD 4.4 Lite Include Sources 1994-05-24 09:57:34 +00:00