Commit Graph

175 Commits

Author SHA1 Message Date
chs 8e9cdbbd63 replace "vnode" and "vtext" with "file" and "exec" in uvmexp field names. 2001-12-09 03:07:43 +00:00
chs 5a690c92a1 add a VOP_PUTPAGES method for all the filesystems that don't have pages,
just unlock the interlock.
2001-12-06 04:27:40 +00:00
thorpej 03efee5585 * Allow machine-dependent code to specify hooks for ptrace(2)
(__HAVE_PTRACE_MACHDEP) and procfs (__HAVE_PROCFS_MACHDEP).
  These changes will allow platforms like x86 (XMM) and PowerPC
  (AltiVec) to export extended register sets in a sane manner.

* Use __HAVE_PTRACE_MACHDEP to export x86 XMM registers (standard
  FP + SSE/SSE2) using PT_{GET,SET}XMMREGS (in the machdep
  ptrace request space).
* Use __HAVE_PROCFS_MACHDEP to export x86 XMM registers via
  /proc/N/xmmregs in procfs.
2001-12-05 00:58:05 +00:00
lukem 2565646230 don't need <sys/types.h> when including <sys/param.h> 2001-11-15 09:47:59 +00:00
lukem e4b00f433c add RCSIDs 2001-11-10 13:33:40 +00:00
simonb cf63a6b052 Remove some variables that are set but never used. 2001-11-06 07:20:37 +00:00
simonb 86c9e7e6d2 In procfs_domem() the addr variable is only needed if PMAP_NEED_PROCWR is
defined.
2001-11-06 07:20:08 +00:00
chs adf5d360a7 add a new VFS op, vfs_reinit, which is called when desiredvnodes is
adjusted via sysctl.  file systems that have hash tables which are
sized based on the value of this variable now resize those hash tables
using the new value.  the max number of FFS softdeps is also recalculated.

convert various file systems to use the <sys/queue.h> macros for
their hash tables.
2001-09-15 16:12:54 +00:00
chs 94d6f3ee95 map files are zero-length. 2001-08-31 04:56:26 +00:00
chs 6e2828061f procfs_bmap() should never be called, make it a "bad op".
let procfs_mmap() use the default error method.
2001-06-03 02:21:35 +00:00
chs 821ec03ed9 replace vm_map{,_entry}_t with struct vm_map{,_entry} *. 2001-06-02 18:09:08 +00:00
mrg 67afbd6270 use _KERNEL_OPT 2001-05-30 11:57:16 +00:00
kleink 79283614b3 In procfs_readdir(), give /proc/# directories DT_DIR (rather than DT_REG). 2001-04-14 13:25:46 +00:00
pk 3c425b682f Cast `field-width' arguments to type `int'. 2001-04-02 07:16:05 +00:00
fvdl 49b162566a Bump va_blocksize for the map files some more, so that programs with
quite a few mappings have a chance of being handled correctly if
st_blksize is looked at.
2001-03-30 20:25:11 +00:00
fvdl 2e64bebd3b For -o linux mounts, add some code to emulate /proc/#/maps.
Needs NAMECACHE_ENTER_REVERSE to include filenames.
2001-03-29 22:41:52 +00:00
jdolecek 522f569810 make some more constant arrays 'const' 2001-02-21 21:39:52 +00:00
jdolecek 555bbcc02a g/c pmnt_mp in struct procfs_args 2001-01-25 12:44:56 +00:00
jdolecek d9466585b7 make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const 2001-01-22 12:17:35 +00:00
jdolecek 34c8ae80da constify 2001-01-18 20:28:15 +00:00
tv 231789093f No-op revision to force update of this file to a non-"-kk" version. 2001-01-18 16:39:43 +00:00
fvdl 4e000b75b2 Add a few linux-style files, only enabled when -o linux is specified
for the mount. Currently these are /proc/cpuinfo and /proc/meminfo.
The former only does something on i386 right now.
2001-01-17 00:09:07 +00:00
david d0ec21672f Increase psbuf size as in FreeBSD patch. We don't have jail(8), so the
recent bugtraq exploit doesn't apply, but it could be exploitable in
other ways.
2000-12-30 23:14:52 +00:00
chs aeda8d3b77 Initial integration of the Unified Buffer Cache project. 2000-11-27 08:39:39 +00:00
chs b0ec16cc38 remove dead code and other misc cleanup. 2000-11-24 18:58:37 +00:00
ad 642267bcc7 Update for hashinit() change. 2000-11-08 14:28:12 +00:00
eeh 1ecf6779be Add support for variable end of user stacks needed to support COMPAT_NETBSD32:
`struct vmspace' has a new field `vm_minsaddr' which is the user TOS.

	PS_STRINGS is deprecated in favor of curproc->p_pstr which is derived
	from `vm_minsaddr'.

	Bump the kernel version number.
2000-09-28 19:05:06 +00:00
thorpej 94a08f31b3 PHOLD/PRELE around uvm_io() to user address space is unnecessary. There
is nothing in the U-area that we need.
2000-09-26 23:28:01 +00:00
thorpej a86d1f4891 Add a lock around the scheduler, and use it as necessary, including
in the non-MULTIPROCESSOR case (LOCKDEBUG requires it).  Scheduler
lock is held upon entry to mi_switch() and cpu_switch(), and
cpu_switch() releases the lock before returning.

Largely from Bill Sommerfeld, with some minor bug fixes and
machine-dependent code hacking from me.
2000-08-20 21:50:06 +00:00
tv 10d08cc9f2 Only show the "exe" entry to Linux processes, suggested by christos.
Since there are actually three struct emul's for linux, use the e_name
field to determine eligibility with strcmp().
2000-08-09 23:30:49 +00:00
tv ae4dea1dc4 Some versions of Linux libc look for /proc/.../exe instead of /proc/../file.
Add an entry for "exe" that is the same as "file", provided only if
COMPAT_LINUX is set.
2000-08-09 21:08:11 +00:00
thorpej b94e29816f MALLOC()/FREE() are not to be used for variable sized allocations. 2000-08-03 03:39:52 +00:00
mrg 20515f2854 <vm/vm.h> -> <uvm/uvm_extern.h> 2000-06-28 02:44:06 +00:00
mrg e185413725 remove redudant <vm/pmap.h> includes. <vm/pmap.h> -> <uvm/uvm_pmap.h> 2000-06-27 04:18:48 +00:00
mrg 2f159a1bac remove/move more mach vm header files:
<vm/pglist.h> -> <uvm/uvm_pglist.h>
	<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
	<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
	<vm/vm_object.h> -> nothing
	<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
2000-06-26 14:20:25 +00:00
mrg c543a66253 remove some redundant <vm/vm_xxx.h> includes 2000-06-25 13:26:19 +00:00
assar 6c734cd283 make vfs_getnewfsid only take one argument and fetch the name of the
filesystem from the supplied mount argument.  also make makefstype
take a const parameter.  update all the callers.
2000-06-10 18:27:01 +00:00
simonb ab92666f6b Fix a possible kernel memory leak - if the cmdline of a process was
requested after it had started to exit but before it became a zombie
a page of kernel memory wouldn't be free'd.
2000-06-01 13:43:08 +00:00
simonb 0c59b3c325 Apply patch from Robert Elz in PR kern/10113. This fixes two problems
with procfs's cmdline - from the PR:

	The cmdline implementation in procfs is bogus.  It's possible that
	part of the fix is a workaround of a UVM problem - that is, when
	(internally) accessing the top of the process VM (the end of the
	args) a request for I/0 of a PAGE_SIZE'd block starting at less
	than a PAGE_SIZE from the end of the mem space returns EINVAL
	rather than the data that is available.  Whether this is a bug
	in UVM or not depends upon how it is defined to work, and I was
	unable to determine that.   (Simon Burge found that problem, and
	provided the basis of the workaround/fix).

	Then, the cmdline function is unable to read more than one
	page of args, and a good thing too, as the way it is written
	attempting to get more than that would reference into lala land.

	And, on an attempt to read a lot of data when the above is
	fixed, most of the data won't be returned, only the final block
	of any read.

Tested on alpha, pmax, i386 and sparc.
2000-05-16 13:45:25 +00:00
simonb 92701d715c Delete duplicate declaration of atopid(). 2000-03-30 02:20:14 +00:00
jdolecek 89015c4648 Add new VFS op routine - vfs_done and call it on filesystem detach
in vfs_detach(). vfs_done may free global filesystem's resources,
typically those allocated in respective filesystem's init function.
Needed so those filesystems which went in via LKM have a chance to
clean after themselves before unloading. This fixes random panics
when LKM for filesystem using pools was loaded and unloaded several
times.

For each leaf filesystem, add appropriate vfs_done routine.
2000-03-16 18:08:17 +00:00
fvdl bb4e324508 Fix pasto: some lines of the procfs hash code were copied from the
UFS code, and I forgot to rename the "ihash" variable, causing
weird effects, because 3/4th of the UFS hash table would become
unreachable after procfs was loaded as an LKM.
2000-02-25 22:33:43 +00:00
fvdl 15bb1bd145 At mount/unmount time, add an exec hook to revoke all vnodes iff the
process is about to exec a sugid binary.

To speed up things, use hashing for vnode allocation, like other filesystems
do. This avoids walking the whole procfs node list in the revoke case too.
2000-01-25 21:52:04 +00:00
thorpej 8772062270 Make /proc/self a symlink to /proc/curproc. I've observed Linux programs
that expect /proc/self/cmdline to exist.
1999-09-02 23:33:45 +00:00
sommerfeld 197579af47 Change variable used for directory offset from "int" to "off_t".
Overkill, but avoids a host of truncation problems.
1999-08-25 14:42:35 +00:00
sommerfeld 2e649e46d3 Fix PR8270:
Problem turned out to be due to improper handling of reads beyond EOF:
they should just return without error with the uio unchanged, and the
caller will recognize this as a zero-byte return (EOF).

The previous fix to protect directory reads against bogus uio_offset
values returned EINVAL, which broke mount -o union, which only
union'ed in the lower directory if the upper directory cleanly
returned EOF.

While we're here, protect kernfs as well.
1999-08-24 23:29:08 +00:00
christos 582a6def8b protect against large uio_offset 1999-08-14 02:20:19 +00:00
wrstuden 3bf14d81e9 Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl
call with F_FSCTL set and F_SETFL calls generate calls to a new
fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0
for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems
use genfs_fcntl().

Reviewed by: thorpej
Tested by: wrstuden
1999-08-03 20:19:16 +00:00
thorpej fc04cf9982 Add calls to lock the proclist as appropriate. 1999-07-25 18:33:47 +00:00
thorpej 2715b812d1 Rework the process exit path, in preparation for making process exit
and PID allocation MP-safe.  A new process state is added: SDEAD.  This
state indicates that a process is dead, but not yet a zombie (has not
yet been processed by the process reaper).

SDEAD processes exist on both the zombproc list (via p_list) and deadproc
(via p_hash; the proc has been removed from the pidhash earlier in the exit
path).  When the reaper deals with a process, it changes the state to
SZOMB, so that wait4 can process it.

Add a P_ZOMBIE() macro, which treats a proc in SZOMB or SDEAD as a zombie,
and update various parts of the kernel to reflect the new state.
1999-07-22 18:13:36 +00:00