Commit Graph

160 Commits

Author SHA1 Message Date
thorpej 51fcba3845 Explicitly set secondary processors in motion before calling uvm_scheduler(). 1999-12-16 19:59:17 +00:00
fvdl 0b1963121a Add Kirk McKusick's soft updates code to the trunk. Not enabled by
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.

Bump version number to 1.4O
1999-11-15 18:49:07 +00:00
simonb 7fdf32e3d0 Defopt MAXUPRC. 1999-11-13 05:02:25 +00:00
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 0d7a86c356 - Centralize the declaration and clearing of `cold'.
- Call configure() after setting up proc0.
- Call initclocks() from configure(), after cpu_configure().  Once the
  clocks are running, clear `cold'.  Then run interrupt-driven
  autoconfiguration.
1999-09-17 20:11:56 +00:00
thorpej 3b01d1b872 Rename the machine-dependent autoconfiguration entry point `cpu_configure()',
and rename config_init() to configure() and call cpu_configure() from there.
1999-09-15 18:10:33 +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
thorpej 7b3258b6a7 Make the kthread API a bit more friendly to loadable kernel modules. 1999-07-06 21:44:09 +00:00
thorpej d76e7b8c6d Don't pass a nam2blk around at all; just have setroot() and friends reference
dev_name2blk[] directly.  Addresses PR #7622 (ITOH Yasufumi), although
in a different way.
1999-06-07 20:16:08 +00:00
thorpej c10a926030 Allow the caller to specify a stack for the child process. If NULL,
the child inherits the stack pointer from the parent (traditional
behavior).  Like the signal stack, the stack area is secified as
a low address and a size; machine-dependent code accounts for stack
direction.

This is required for clone(2).
1999-05-13 21:58:32 +00:00
thorpej 5d97669cfe Allow an alternate exit signal (i.e. not SIGCHLD) to be delivered to the
parent, specified at fork time.  Specify a new flag to wait4(2), WALTSIG,
to wait for processes which use an alternate exit signal.

This is required for clone(2).
1999-05-13 00:59:03 +00:00
thorpej 2835fc6e46 Pull signal actions out of struct user, make them a separate proc
substructure, and allow them to be shared.

Required for clone(2).
1999-04-30 21:23:49 +00:00
thorpej 16936c9565 Break cdir/rdir/cmask info out of struct filedesc, and put it in a new
substructure, `cwdinfo'.  Implement optional sharing of this substructure.

This is required for clone(2).
1999-04-30 18:42:58 +00:00
simonb 5d8b1ef3e4 g/c REAL_CLISTS. 1999-04-25 02:56:26 +00:00
gwr 8946cf4be4 minor nits -- strncpy into p->p_comm 1999-04-12 00:22:08 +00:00
thorpej c431ebc42f Call cpu_startup() immediately after uvm_init(), but before mbinit().
Call configure() directly immediately after config_init().

This causes autoconfiguration to happen at the same time as before, but
creates some kernel submaps earlier, so that e.g. mbinit() can now
allocate memory.
1999-04-01 00:22:45 +00:00
thorpej c647f127c1 Assign initproc in main(), not start_init(). It's conventient to do so. 1999-03-26 01:10:50 +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
mycroft f3df26f6f3 This is sort of gratuitous, but...
Strip the leading path off of init's argv[0].
1999-03-05 07:26:21 +00:00
cjs d390501801 Safer use of printf. 1999-02-22 00:12:36 +00:00
christos 198f0a3f56 Fix initialization of resource limits for number of files and number
of processes:
- Don't initialize rlim_max to RLIM_INFINITY. The limits for those should
  be maxfiles and maxproc respectively. Programs expect getrlimit to
  return reasonable values, so that they can allocate structures (for
  example jdk does this).
- Don't initialize rlim_cur to NOFILE and MAXUPRC respectively, but to
  min(NOFILE, maxfiles) and min(MAXUPRC, maxproc) respectively.
1999-01-21 14:50:41 +00:00
chuck 4ef779d5e5 MNN is no longer optional 1999-01-16 21:06:44 +00:00
lukem 0e36738ca6 add copyright 1999 1999-01-06 13:51:09 +00:00
thorpej 1d03badef0 Implement a way to queue kernel threads for creation after init,
pagedaemon, reaper, etc.  Caller provides a callback function and
argument which will be called to create the threads.
1998-11-14 00:08:49 +00:00
thorpej 920a1ace5b fork_kthread() -> kthread_create(). Set P_NOCLDWAIT on kernel threads,
which will cause any of their children to be reparented to init(8) (which
is already prepared to wait out orphaned processes).
1998-11-11 22:45:32 +00:00
thorpej 6956a57584 Initial version of API for creating kernel threads (likely to change somewhat
in the future):
- New function, fork_kthread(), takes entry point, argument for entry point,
  and comment for new proc.  May be called by any context, will fork the
  thread from proc0 (requires slight changes to cpu_fork()).
- cpu_set_kpc() now takes a third argument, a void *arg to pass to the
  thread entry point.  Thread entry point now takes void * instead of
  struct proc *.
- Create the pagedaemon and reaper kernel threads using fork_kthread().
1998-11-11 06:34:43 +00:00
tron 39876df951 Defopt SYSVMSG, SYSVSEM and SYSVSHM. 1998-10-19 22:14:54 +00:00
pk 2d45ece0e7 Allow `curproc' to be defined in <machine/proc.h> to enable a transition
to SMP support.
1998-10-19 11:51:53 +00:00
thorpej 93ea1946f0 Implement a new kernel thread, the "reaper", which performs the task
of freeing the VM resources once a process has exited.  A valid thread
must do this work, as doing so may block in a multi-processor environment.
1998-09-08 23:57:58 +00:00
thorpej 26b8f5c4ac Use the pool allocator and "nointr" pool page allocator for file structures. 1998-08-31 23:55:37 +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
thorpej a4c7bab10e Use the pool allocator for sockets. 1998-08-02 04:53:11 +00:00
thorpej c56c24f4fd Initialize the mbuf allocator _before_ autoconfiguration; it might be
called when devices attach, take two.

Note that it is necessary that mbinit() NOT allocate memory, since it
is called before mb_map is created.  This is not a problem with the
pool allocator that is now used for mbufs and mbuf clusters.
1998-08-01 01:36:35 +00:00
thorpej e8b92fa131 Oops, back out previous. I need to attack that problem differently. 1998-08-01 01:20:43 +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
thorpej 17e88cf50e Initialize the mbuf allocator _before_ autoconfiguration; it might be
called when devices attach.
1998-07-31 21:59:55 +00:00
thorpej 6b781d156f defopt NFSSERVER 1998-06-25 22:17:36 +00:00
mycroft ca63148e3d Oops; forgot to update prototype. 1998-03-30 06:18:05 +00:00
mycroft f1ed6cae04 Argument to main() is no longer used. 1998-03-30 06:15:44 +00:00
thorpej b436157e65 Make proc0 use the statically-allocate vmspace0 again, and make it use
the kernel's pmap, since proc0 (and other that share its address space)
are kernel-only processes, and should never contain userspace mappings.

This makes it easier to detect errors, like entering user mappings
for kernel processes, in pmap modules, and makes some sense, considering
that kernel processes are really just "thread contexts" for the kernel.
1998-03-27 01:52:01 +00:00
thorpej 272d8a4a38 Process 2 (the pagedaemon) always runs in kernel space, so share VM
space with proc0.
1998-03-22 18:22:07 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
thorpej b0b3787d14 Include the NFS option header. 1998-02-19 00:47:02 +00:00
thorpej d2924ae854 Prevent the session ID from disappearing if the session leader exits
(thus causing s_leader to become NULL) by storing the session ID separately
in the session structure.  Export the session ID to userspace in the
eproc structure.

Submitted by Tom Proett <proett@nas.nasa.gov>.
1998-02-14 00:37:26 +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
mrg a20d56e92e add new version of non contiguous memory code, written by chuck cranor,
called "MACHINE_NEW_NONCONGIG".  this is required for UVM, the new VM
system (also written by chuck) that is coming soon.  adds new functions:
	vm_page_physload() -- tell the VM system about an area of memory.
	vm_physseg_find() -- returns index in vm_physmem array that this
		address is in.
and several new versions of old functions/macros defined in vm_page.h.

this is the MI portion.  sparc, and then later i386 portions to come.
all other ports need to change to this ASAP!  (alpha is already being
worked on)
1998-01-08 11:36:16 +00:00
thorpej 974b59d07c Happy new year! 1998-01-07 00:41:43 +00:00
thorpej 052b639ac1 Clean up the forking of init and the pagedaemon slightly: call fork1()
directly (which provides a pointer to the new process).
1998-01-06 21:18:00 +00:00