Commit graph

11 commits

Author SHA1 Message Date
Ben Gras
5f497bcf22 - Introduce some macros for field names, so that endpt, pendpt,
addr and taddr don't have to be defined any more, so that <sys/mman.h>
    can be included for proper prototypes of munmap() and friends.
  - rename our GETPID to MINIX_GETPID to avoid a name conflict with
    other sources
  - PM needs its own munmap() and munmap_text() to avoid sending messages
    to VM at the startup phase. It *does* want to do that, but only
    after initialising. So they're called again with unmap_ok set to 1
    later.
  - getnuid(), getngid() implementation
2009-09-21 14:48:19 +00:00
Ben Gras
c078ec0331 Basic VM and other minor improvements.
Not complete, probably not fully debugged or optimized.
2008-11-19 12:26:10 +00:00
Ben Gras
b5179d7025 Split do_brk in a stub and a function that does the real work, so that
the real work can be called from elsewhere too. Specifically, to allow PM
its own brk().
2006-06-30 14:35:38 +00:00
Philip Homburg
773844a816 New interface between PM and FS. 2006-05-11 14:57:23 +00:00
Ben Gras
7967177710 endpoint-aware conversion of servers.
'who', indicating caller number in pm and fs and some other servers, has
been removed in favour of 'who_e' (endpoint) and 'who_p' (proc nr.).

In both PM and FS, isokendpt() convert endpoints to process slot
numbers, returning OK if it was a valid and consistent endpoint number.
okendpt() does the same but panic()s if it doesn't succeed. (In PM,
this is pm_isok..)

pm and fs keep their own records of process endpoints in their proc tables,
which are needed to make kernel calls about those processes.

message field names have changed.

fs drivers are endpoints.

fs now doesn't try to get out of driver deadlock, as the protocol isn't
supposed to let that happen any more. (A warning is printed if ELOCKED
is detected though.)

fproc[].fp_task (indicating which driver the process is suspended on)
became an int.

PM and FS now get endpoint numbers of initial boot processes from the
kernel. These happen to be the same as the old proc numbers, to let
user processes reach them with the old numbers, but FS and PM don't know
that. All new processes after INIT, even after the generation number
wraps around, get endpoint numbers with generation 1 and higher, so
the first instances of the boot processes are the only processes ever
to have endpoint numbers in the old proc number range.

More return code checks of sys_* functions have been added.

IS has become endpoint-aware. Ditched the 'text' and 'data' fields
in the kernel dump (which show locations, not sizes, so aren't terribly
useful) in favour of the endpoint number. Proc number is still visible.

Some other dumps (e.g. dmap, rs) show endpoint numbers now too which got
the formatting changed.

PM reading segments using rw_seg() has changed - it uses other fields
in the message now instead of encoding the segment and process number and
fd in the fd field. For that it uses _read_pm() and _write_pm() which to
_taskcall()s directly in pm/misc.c.

PM now sys_exit()s itself on panic(), instead of sys_abort().

RS also talks in endpoints instead of process numbers.
2006-03-03 10:20:58 +00:00
Ben Gras
231488dd1c Al's patch 2005-09-23 20:46:17 +00:00
Ben Gras
d11b2e4b8c Al's double-blank-line removal request 2005-08-22 15:23:47 +00:00
Ben Gras
5d2588aedf Al's patch sent Fri aug 5 2005-08-05 16:56:02 +00:00
Jorrit Herder
6d23f072f3 Cleaned up src/lib/utils library. Renamed server_ functions to more logical
names. All system processes can now either use panic() or report() from
libutils, or redefine their own function. Assertions are done via the standard
<assert.h> functionality.
2005-06-01 14:31:00 +00:00
Jorrit Herder
1ecc6bf3b3 Removed 'system process' magic from PM and FS. 2005-05-13 08:57:08 +00:00
Ben Gras
0e9261ed5a Rename mm (memory manager) to pm (process manager), involved renaming
dir..
2005-05-03 15:35:52 +00:00