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8c0a9bab00
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50 Commits

Author SHA1 Message Date
drochner
8c0a9bab00 Don't cast 64bit (off_t) file sizes to vm_offset_t (32bit on many 
architectures), truncate them intelligently instead.
The truncation is done centralized in vnode_pager.c.
This prevents from wrap-over effects when parts of large (>2^32 byte) files
are mmapped.
Don't allow to mmap above the numerical range of vm_offset_t.
This is considered a temporary solution until the vm system handles the
object sizes/offsets more cleanly.
 1997-07-04 20:22:09 +00:00
christos
3dc7953eec back out previous kprintf changes 1996-10-12 21:50:05 +00:00
christos
de1b2b437e printf -> kprintf, sprintf -> ksprintf 1996-10-10 17:16:17 +00:00
christos
3cc52443b5 Fix vm_offset_t (unsigned long) and vm_size_t (unsigned long) printf arguments 
to %lx and %ld instead of %x and %d.
 1996-03-16 23:15:18 +00:00
gwr
f6925cfbf3 Replace vm_object_prefer with PMAP_PREFER. 1996-02-28 22:39:13 +00:00
christos
03b1ad4cb4 One more cleanup pass to change %x to %p for pointers 1996-02-10 00:07:59 +00:00
christos
bcabcefdcd VM prototype changes 1996-02-05 01:53:47 +00:00
pk
801712f01a Extend use of vm_object_prefer() to vm_allocate_with_pager(). 
Make vm_object_prefer() call MD aligner for "pageless" objects too,
so we can have more control over the virtual address to be used.

Implementation could be simpler if we by-pass the object to mapped, but
we'd loose the ability to adapt alignment to objects that were previously
mmap'ed with MAP_FIXED on.
 1995-12-05 22:54:36 +00:00
mycroft
2dd293d3c3 Add hooks for COMPAT_FREEBSD, from Noriyuki Soda. 1995-10-10 01:26:36 +00:00
mycroft
245f292fed Prefix names of system call implementation functions with `sys_'. 1995-10-07 06:25:19 +00:00
thorpej
7160dfc805 Make system calls conform to a standard prototype and bring those 
prototypes into scope.
 1995-09-19 21:57:36 +00:00
mycroft
57e6889435 Make memory map syscalls consistently use size_t. 1995-03-09 17:28:28 +00:00
cgd
94d77171f9 need compat_43_getpagesize on COMPAT_OSF1 1995-03-08 01:46:53 +00:00
mycroft
3d869b0608 Fix two off-by-one errors. 1995-01-09 17:36:48 +00:00
pk
3e4bf211c6 Use vm_object_prefer() to find a good range of virtual addresses to 
map a memory object to.
 1994-12-10 11:48:12 +00:00
gwr
1a7920257d Make sure vm_mmap creates mappings with page-aligned file offsets. 
Handle non-aligned file offsets in the mmap/munmap system calls.
 1994-12-01 00:23:11 +00:00
cgd
aa151f86b3 change some strategic casts to (*long) from (*int). 1994-10-29 07:35:04 +00:00
cgd
6b86130410 update for new syscall args description mechanism 1994-10-20 04:22:35 +00:00
mycroft
d5fdf729f2 All of the users of munmapfd() expect to pass it 
two args.  Make it work correctly.
 1994-09-16 01:57:57 +00:00
cgd
fccfa11af5 New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:39:25 +00:00
cgd
9608c5b657 clean up slightly; change RCS ID's to be minimally intrusive 1994-06-27 04:55:46 +00:00
cgd
bf43549e44 fix a thinko that kept msync from working if no size specified. 1994-06-20 00:17:28 +00:00
cgd
3495827959 new VM code, from 4.4-Lite 1994-05-23 03:11:20 +00:00
mycroft
72edd4b918 For MAP_ANON, force the file offset to 0. I can't think of any any bad side 
effects of this, and it fixes an interesting bug.
 1994-05-19 18:03:04 +00:00
cgd
ca14e4af10 stubs 1994-05-07 00:39:58 +00:00
cgd
f8dd4f370d expand the rlimit struct, kill last vestiges of off_t bogosity. 1994-05-04 01:38:25 +00:00
cgd
f50f031448 kill syscall name aliases. no user-visible changes 1994-04-29 04:41:02 +00:00
cgd
551e92c16a start to phase out temp. off_t syscalls 1994-04-16 23:19:06 +00:00
cgd
e937bc9bfd convert vm system to use new queues. I'll never write code w/queues again. 1994-04-15 07:04:03 +00:00
cgd
ed740c7de8 frob arguments a little bit 1994-04-02 08:39:20 +00:00
cgd
b7e76677c6 expand uid_t/gid_t/off_t 1994-03-27 09:09:57 +00:00
chopps
b8f74df1a5 default type is MAP_FILE if none given. 1994-03-23 01:54:02 +00:00
mycroft
e879c04f57 #include vm_user.h. 1994-01-08 04:22:36 +00:00
mycroft
d66944976a Some minor rearrangement and cleanup. 1994-01-08 03:24:19 +00:00
mycroft
4181f14213 Add some explicit return types, and make a bunch of things static. 1994-01-07 23:36:15 +00:00
cgd
c26286a5c1 bring changes down from magnum 1993-12-20 12:39:55 +00:00
mycroft
b4d3382694 Canonicalize all #includes. 1993-12-17 07:56:32 +00:00
cgd
76dbc1192b new specfs.h and fifo.h locations 1993-11-12 05:54:12 +00:00
cgd
95e5868ee2 allow an offset to *really* be passed in for mmap's on devices. 
From Julian Elischer.
 1993-10-02 00:00:21 +00:00
mycroft
4862b84c92 Add RCS identifiers (this time on the correct side of the branch), and 
incorporate recent changes in netbsd-0-9 branch.
 1993-08-01 19:22:24 +00:00
mycroft
97cae397ee Finish moving struct definitions outside of function declarations. 1993-07-17 15:24:33 +00:00
cgd
4b90229cd2 do the "right thing" with mmap protections, once and for all. 
in particular, if an object is mapped private, DO NOT grant
VM_PROT_ALL protections to it; it could be sensitive data.
 1993-07-15 14:48:37 +00:00
cgd
b99e3b6666 get rid of bogus protections chacking which conflicts w/guido's 
patch...
 1993-07-07 11:25:32 +00:00
cgd
cc5e8e00d5 add rcs ids and clean up headers 1993-05-20 03:59:08 +00:00
cgd
fd7c50fd61 patch from Pete Chown <pc123@cus.cam.ac.uk> to fix mmap 
modes vs. read/write permissions problem.
 1993-05-07 01:58:11 +00:00
glass
33d009a09c Prevents you from creating double faults and such mmaping stuff on top 
of the kernel, etc. Tested.  Derived from BSDI public patches
 1993-04-10 15:06:01 +00:00
cgd
4493ba8058 fixed stupid typo (missing comma) in hand-applied diff 1993-04-09 17:19:02 +00:00
cgd
a128c34f9c From: Guido van Rooij <guido@gvr.win.tue.nl> 
when mmapping a file, permissions are checked as it should be. When
mprotect()-ing the address range afterwards, no protection was checked
regarding the protection of the file originally opened. So
when you open /usr/bin/su RDONLY and SHARED you could afterwards change
the mmapped region to READ|WRITE. This gave the possibility to obtain
root privs obviously.
 1993-04-09 17:16:30 +00:00
cgd
202313150e changes, running on sef's machine to good effect, likely contributed 
by torek.  (sef told me to get them, and their origin...)
 1993-04-09 17:13:17 +00:00
cgd
61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00