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48 Commits

Author SHA1 Message Date
sommerfeld 40339b39f9 Reduce use of curproc in several places: 
- Change ktrace interface to pass in the current process, rather than
p->p_tracep, since the various ktr* function need curproc anyway.

 - Add curproc as a parameter to mi_switch() since all callers had it
handy anyway.

 - Add a second proc argument for inferior() since callers all had
curproc handy.

Also, miscellaneous cleanups in ktrace:

 - ktrace now always uses file-based, rather than vnode-based I/O
(simplifies, increases type safety); eliminate KTRFLAG_FD & KTRFAC_FD.
Do non-blocking I/O, and yield a finite number of times when receiving
EWOULDBLOCK before giving up.

 - move code duplicated between sys_fktrace and sys_ktrace into ktrace_common.

 - simplify interface to ktrwrite()
 2000-05-27 00:40:29 +00:00
augustss 264f1d27c6 Get rid of register declarations. 2000-03-30 09:27:11 +00:00
darrenr 08227b6c88 build stkbuf out of u_long rather than char for sys_ioctl() to ensure we get an aligned array 2000-03-17 00:01:48 +00:00
thorpej e3669c3393 Add "use counting" to file entries. When closing a file, and it's reference 
count is 0, wait for use count to drain before finishing the close.

This is necessary in order for multiple processes to safely share file
descriptor tables.
 1999-05-05 20:01:01 +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
kleink c68582d64b UIO_MAXIOV -> IOV_MAX 1998-08-03 15:01:00 +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
kleink 17de9df6c1 Reject an iovcnt argument of 0 to readv(), writev(), preadv() and pwritev() 
as invalid.  This has been stated by the respective manual pages at least
since Net/2, and is the behaviour specified by XSH5.
 1998-07-31 15:38:58 +00:00
thorpej 939279f988 When checking for overflow in the residual count, test against SSIZE_MAX. 
The read/write system calls return ssize_t because -1 is used to indicate
error, therefore the transfer size MUST be limited to SSIZE_MAX, otherwise
garbage can be returned to the user.

There is NO change from existing behavior here, only a more precise
definition of that the semantics are, except in the Alpha case, where
the full SSIZE_MAX transfer size can now be realized (ssize_t is 64-bit
on the Alpha).
 1998-07-28 17:58:29 +00:00
thorpej b6781dbaa2 Split up read/readv/write/writev into the system call front-end and 
the guts that actually perform the I/O request.
 1998-06-30 07:39:22 +00:00
thorpej a4a34ba74a Add two additional arguments to the fileops read and write calls, a 
pointer to the offset to use, and a flags word.  Define a flag that
specifies whether or not to update the offset passed by reference.
 1998-06-30 05:33:11 +00:00
thorpej 808867c7cf defopt KTRACE 1998-06-25 21:17:15 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
thorpej 97d2a58201 Fix slight argument bogosity with getgroups(), setgroups(), select(), 
and swapctl().  For the former three, they use an 'int' in their user-land
prototype which was a 'u_int' in the kernel, which screwed up automatic
generation/checking of lint syscall stubs.  For the latter, the user-land
prototype uses a "const char *", but the syscall just used "char *".

From Chris Demetriou <cgd@pa.dec.com>.
 1997-11-04 21:24:14 +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
mrg 3a0a1d42da in pollscan, cast incoming fd to unsigned int. from mycroft. 1997-02-23 02:23:07 +00:00
mrg d1b433e462 check that fd being poll()ed is valid. from mycroft. 1997-02-18 04:20:54 +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
mycroft 7cbc74f45c Use INFTIM, not -1. 1996-09-07 21:47:23 +00:00
mycroft 1449e67e30 Modify poll(2) prototype. 1996-09-07 14:20:09 +00:00
mycroft 2bc736661a Implement poll(2). 1996-09-07 12:40:22 +00:00
mycroft 59f71c45fc Clean up sys_select() slightly. 1996-09-05 15:32:52 +00:00
cgd f41d0a3d9b in select(), if it's a small number of file descriptors use a 
automatic array rather than an array allocated with alloca().
(This was the only use of alloca() in the kernel, and it wasn't
necessary or consistent with the way other functions in this file
work.)
 1996-06-13 05:08:47 +00:00
mycroft abfbe7c6c4 Deal with FD_SETSIZE larger than the default. 1996-06-02 14:48:23 +00:00
cgd f92325cf2f kill unnecessary (and sometimes dangerous) casts of ioctl commands to int 1996-03-29 00:25:30 +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 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
mycroft f75ba16b09 Update to use timer{add,sub}(). 1995-03-21 13:33:34 +00:00
mycroft f9e259e3ca Use __timer{add,sub}(), not timeval{add,sub}(). Remove the latter completely. 1994-12-11 18:06:07 +00:00
cgd 6ac2bbfc35 be more careful with types, also pull in headers where necessary. 1994-10-30 21:43:03 +00:00
cgd 6b86130410 update for new syscall args description mechanism 1994-10-20 04:22:35 +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 ad7a66ca21 update to 4.4-lite 1994-05-19 06:39:46 +00:00
cgd 31596c7cad setrun changes name 1994-05-07 00:56:46 +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 4bbabd8e7a Rename a lot of process flags. 1994-05-04 03:41:12 +00:00
pk c90756358c read(): return EINVAL if `count' argument is negative. 1994-02-16 17:23:03 +00:00
mycroft 21edb9924e Canonicalize all #includes. 1993-12-18 03:59:02 +00:00
cgd 082beb9cc0 make args & locals of select unsigned where appropriate. 1993-07-15 22:26:11 +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
glass ac6d9dc22e more damn ansi function declarations. damn you chris.... 1993-06-22 01:59:39 +00:00
cgd 53eb1ac38c a few changes to select. most notable: don't sleep forever unless 
user actually wants to.  (it could happen in strange circumstances...)
 1993-06-14 05:11:58 +00:00
mycroft 85387a3dea Believe it or not, selrecord() was broken... 1993-06-13 07:39:32 +00:00
cgd 8d6c77881c make kernel select interface be one-stop shopping & clean it all up. 1993-05-18 18:18:40 +00:00
cgd e541169ce2 after 0.2.2 "stable" patches applied 1993-03-21 18:04:42 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00