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53 Commits

Author SHA1 Message Date
bouyer 52497e180a Remplace kern.shortcorename sysctl with a more flexible sheme, 
core filename format, which allow to change the name of the core dump,
and to relocate it in a directory. Credits to Bill Sommerfeld for giving me
the idea :)
The default core filename format can be changed by options DEFCORENAME and/or
kern.defcorename
Create a new sysctl tree, proc, which holds per-process values (for now
the corename format, and resources limits). Process is designed by its pid
at the second level name. These values are inherited on fork, and the corename
fomat is reset to defcorename on suid/sgid exec.
Create a p_sugid() function, to take appropriate actions on suid/sgid
exec (for now set the P_SUGID flag and reset the per-proc corename).
Adjust dosetrlimit() to allow changing limits of one proc by another, with
credential controls.
 1999-09-28 14:47:00 +00:00
thorpej ea8fb3e04a Turn the proclist lock into a read/write spinlock. Update proclist locking 
calls to reflect this.  Also, block statclock rather than softclock during
in the proclist locking functions, to address a problem reported on
current-users by Sean Doran.
 1999-07-25 06:30:33 +00:00
thorpej 01a8cffe77 Add a read/write lock to the proclists and PID hash table. Use the 
write lock when doing PID allocation, and during the process exit path.
Use a read lock every where else, including within schedcpu() (interrupt
context).  Note that holding the write lock implies blocking schedcpu()
from running (blocks softclock).

PID allocation is now MP-safe.

Note this actually fixes a bug on single processor systems that was probably
extremely difficult to tickle; it was possible that schedcpu() would run
off a bad pointer if the right clock interrupt happened to come in the
middle of a LIST_INSERT_HEAD() or LIST_REMOVE() to/from allproc.
 1999-07-22 21:08:30 +00:00
mrg d2397ac5f7 completely remove Mach VM support. all that is left is the all the 
header files as UVM still uses (most of) these.
 1999-03-24 05:50:49 +00:00
thorpej a8f7175524 Use the pool allocator and "nointr" pool page allocator for pcred and 
plimit structures.
 1998-08-31 23:53:19 +00:00
eeh a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
perry 275d1554aa Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 
bcopy(x, y, z) ->  memcpy(y, x, z)
ovbcopy(x, y, z) -> memmove(y, x, z)
   bcmp(x, y, z) ->  memcmp(x, y, z)
  bzero(x, y)    ->  memset(x, 0, y)
 1998-08-04 04:03:10 +00:00
perry 730baa7431 fix sizeofs so they comply with the KNF style guide. yes, it is pedantic. 1998-07-31 22:50:48 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW. 
- remove unnecessary UVMHIST_DECL's.
 1998-02-10 14:08:44 +00:00
mrg 1a8c7604f4 initial import of the new virtual memory system, UVM, into -current. 
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the rest of the MI portion changes.

this will be KNF'd shortly.  :-)
 1998-02-05 07:59:28 +00:00
mycroft 2587de6af9 Adjust u_int arguments of some system calls to int, to match user-level 
prototypes.
 1997-10-15 17:03:52 +00:00
enami d0c58d6217 Cosmetic changes; 
- indent continuation line by four columns.
- delete whitespace after cast.
 1997-10-09 01:07:46 +00:00
enami 9ad3575d65 - round up requested soft stack limit by vm page size. 
- don't round up size and truncate addr.
 1997-10-09 01:04:13 +00:00
cgd e7af2a8237 * catch up with system call argument type fixups/const poisoning. 
* Fix arguments to various copyin()/copyout() invocations, to avoid
  gratuitous casts.
* Some KNF formatting fixes
 1996-12-22 10:21:06 +00:00
matthias a587cc60a0 * In dosetrlimit ensure that rlim_cur and rlim_max are >0. Otherwise 
the kernel might crash due to invalid values passed to setrlimit.
 1996-10-23 07:19:38 +00:00
ws 2da166f660 Fix p_nice vs. NZERO code. 
Change NZERO to 20 to always make p_nice positive.
On Christos' suggestion make p_nice explicitly u_char.
 1996-10-02 18:04:56 +00:00
jtc f9a9b2e372 Used signed instead of unsigned longs for sec and usec variables to 
handle cases which would otherwise yeild wildly wrong results.
 1996-07-11 00:09:29 +00:00
jtc 2074cccbb8 Cast `sec' to a u_quad_t in `sec * 1000000 + usec' so the expression 
is computed with quad integer arithmetic (so it won't overflow after
4294 seconds).
 1996-06-13 23:22:22 +00:00
christos 09afd77655 More proto fixes 1996-02-09 18:59:18 +00:00
christos 8a5b1b92e2 First pass at prototyping 1996-02-04 02:15:01 +00:00
mycroft 00be80b604 Add a limfree(), and use it. 1995-12-09 04:09:32 +00:00
mycroft 245f292fed Prefix names of system call implementation functions with `sys_'. 1995-10-07 06:25:19 +00:00
thorpej 60024eb978 Make system calls conform to a standard prototype and bring those 
prototypes into scope.
 1995-09-19 21:40:36 +00:00
christos 1a5a3c9199 Extracted all of the compat_xxx routines, and created a library [libcompat] 
for them. There are a few #ifdef COMPAT_XX remaining, but they are not easy
or worth eliminating (yet).
 1995-06-24 20:33:55 +00:00
christos fb371ccef0 tty_tb.c: need to include ioctl_compat.h in order to compile. 
sysv_shm.c: make shm_find_segment_by_shmid global so it can be used by
	    COMPAT_HPUX. There should be a better way...
rest: Add #ifdef COMPAT_HPUX where needed
 1995-05-10 16:52:53 +00:00
mycroft f75ba16b09 Update to use timer{add,sub}(). 1995-03-21 13:33:34 +00:00
fvdl cb05b6a54b Two more "|| defined(COMPAT_LINUX)" that I somehow missed first time around. 1995-03-05 20:48:15 +00:00
cgd d218233b36 various cleanups for -Wall. some inspired by James Jegers. 1994-12-24 15:07:22 +00:00
mycroft f9e259e3ca Use __timer{add,sub}(), not timeval{add,sub}(). Remove the latter completely. 1994-12-11 18:06:07 +00:00
christos 3e935d8a0d Added ifdef COMPAT_SVR4 to the kernel compat code needed. 1994-11-17 20:27:10 +00:00
cgd 6b86130410 update for new syscall args description mechanism 1994-10-20 04:22:35 +00:00
mycroft 2f710a54ee Convert process, file, and namei lists and hash tables to use queue.h. 1994-08-30 03:04:28 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
cgd 63bb5c1ff2 update to 4.4-Lite, with some local changes 1994-05-19 08:13:09 +00:00
cgd 21a03cca53 mostly-machine-indepedent switch, and changes to match. also, hack init_main 1994-05-18 05:12:10 +00:00
cgd 91cf0fbaf3 copyright foo 1994-05-17 04:21:49 +00:00
mycroft 26ebb5fdde Now setpri() is really toast. 1994-05-05 09:06:10 +00:00
cgd a0a7429482 lots of changes: prototype migration, move lots of variables, definitions, 
and structure elements around.  kill some unnecessary type and macro
definitions.  standardize clock handling.  More changes than you'd want.
 1994-05-05 05:35:42 +00:00
cgd f8dd4f370d expand the rlimit struct, kill last vestiges of off_t bogosity. 1994-05-04 01:38:25 +00:00
cgd 7f3f130206 minor cleanup 1994-04-25 09:51:56 +00:00
mycroft 21edb9924e Canonicalize all #includes. 1993-12-18 03:59:02 +00:00
cgd 94dd8a0dfb dtrt with 'error' in setpriority() 1993-12-10 07:19:16 +00:00
cgd 9c32bc786a make allproc be volatile, and cast things accordingly. 
suggested by torek, because CSRG had problems with reordering
of assignments to allproc leading to strange panics from kernels
compiled with gcc2...
 1993-09-15 22:30:32 +00:00
cgd 6a474f29e2 get rid of maxdmap, and seperate MAXDSIZ and MAXSSIZ in rlimit checking. 1993-09-04 00:37:54 +00:00
mycroft 742dcd5655 RLIMIT_OFILE --> RLIMIT_NOFILE 1993-08-23 16:01:56 +00:00
cgd c0334ef92c break args structs out, into syscallname_args structs, so gcc2 doesn't 
whine so much.
 1993-07-13 22:13:15 +00:00
andrew 0e6cb953ea ANSIfications - removed all implicit function return types and argument 
definitions.  Ensured that all files include "systm.h" to gain access to
general prototypes.  Casts where necessary.
 1993-06-27 06:01:27 +00:00
cgd 462e59fb61 two fixes from ws: 
if resource cur/max limits hosed, fix
	copy the correct amount from the rusage struct
 1993-06-02 23:46:28 +00:00
cgd 4206d7f100 break before letting child run, if tracing, and do the right 
thing with stack limits
 1993-06-01 04:52:40 +00:00