Commit graph

2793 commits

Author SHA1 Message Date
Erik van der Kouwe
17b10f1bf3 Add fabsf function 2010-01-08 07:27:11 +00:00
Cristiano Giuffrida
d1fd04e72a Initialization protocol for system services.
SYSLIB CHANGES:
- SEF framework now supports a new SEF Init request type from RS. 3 different
callbacks are available (init_fresh, init_lu, init_restart) to specify
initialization code when a service starts fresh, starts after a live update,
or restarts.

SYSTEM SERVICE CHANGES:
- Initialization code for system services is now enclosed in a callback SEF will
automatically call at init time. The return code of the callback will
tell RS whether the initialization completed successfully.
- Each init callback can access information passed by RS to initialize. As of
now, each system service has access to the public entries of RS's system process
table to gather all the information required to initialize. This design
eliminates many existing or potential races at boot time and provides a uniform
initialization interface to system services. The same interface will be reused
for the upcoming publish/subscribe model to handle dynamic 
registration / deregistration of system services.

VM CHANGES:
- Uniform privilege management for all system services. Every service uses the
same call mask format. For boot services, VM copies the call mask from init
data. For dynamic services, VM still receives the call mask via rs_set_priv
call that will be soon replaced by the upcoming publish/subscribe model.

RS CHANGES:
- The system process table has been reorganized and split into private entries
and public entries. Only the latter ones are exposed to system services.
- VM call masks are now entirely configured in rs/table.c
- RS has now its own slot in the system process table. Only kernel tasks and
user processes not included in the boot image are now left out from the system
process table.
- RS implements the initialization protocol for system services.
- For services in the boot image, RS blocks till initialization is complete and
panics when failure is reported back. Services are initialized in their order of
appearance in the boot image priv table and RS blocks to implements synchronous
initialization for every system service having the flag SF_SYNCH_BOOT set.
- For services started dynamically, the initialization protocol is implemented
as though it were the first ping for the service. In this case, if the
system service fails to report back (or reports failure), RS brings the service
down rather than trying to restart it.
2010-01-08 01:20:42 +00:00
Erik van der Kouwe
acc3c30855 Prevent nanosleep from potentially overwriting sleep time
suggested by Rene Zatvo
2010-01-07 19:25:18 +00:00
Erik van der Kouwe
aac4b7923f Add ENOTSUP error code 2010-01-07 09:53:31 +00:00
Erik van der Kouwe
1a39ed880a Make get/setsockopt handle SOREUSEADDR 2010-01-07 09:53:08 +00:00
Erik van der Kouwe
413a8083b9 Allow test43 to deal with broken symlinks 2010-01-07 09:52:23 +00:00
Erik van der Kouwe
38ed5b2685 Fix brackets in kernel/arch/i386/include/archconst.h 2010-01-06 08:46:33 +00:00
Erik van der Kouwe
8d97f0253f Fix bracket with different color in netconf(8) man-page 2010-01-06 08:31:11 +00:00
Erik van der Kouwe
33afb396f8 Man-page for netconf(8), contributed by Leith Brandeland 2010-01-06 08:24:06 +00:00
Kees van Reeuwijk
d8f3af3672 Fixed a typing bug.
More explicit type conversion from virual to physical bytes.
Bracket negative #defines for extra paranoia.
Added a forgotten 'void' to a function.
2010-01-06 08:23:14 +00:00
Erik van der Kouwe
49ec221a92 Fix netconf alignment now that there is a number 10"
Note: should fix again when we reach 100 :)
2010-01-06 08:20:12 +00:00
Erik van der Kouwe
c554a39725 Move man-pages for zoneinfo, replace with links 2010-01-06 08:00:39 +00:00
Erik van der Kouwe
bbff2115d6 Oops, forgot to svn add this 2010-01-06 07:49:54 +00:00
Erik van der Kouwe
f9aac2c06b Move man-pages for bzip2, replace with links. 2010-01-06 07:45:45 +00:00
Erik van der Kouwe
a75c9fce4d Man-page for ping, contributed by Leith Brandeland 2010-01-06 07:36:12 +00:00
David van Moolenbroek
ac9ab099c8 General cleanup:
- clean up kernel section of minix/com.h somewhat
- remove ALLOCMEM and VM_ALLOCMEM calls
- remove non-safecopy and minix-vmd support from Inet
- remove SYS_VIRVCOPY and SYS_PHYSVCOPY calls
- remove obsolete segment encoding in SYS_SAFECOPY*
- remove DEVCTL call, svrctl(FSDEVUNMAP), map_driverX
- remove declarations of unimplemented svrctl requests
- remove everything related to swapping to disk
- remove floppysetup.sh
- remove traces of rescue device
- update DESCRIBE.sh with new devices
- some other small changes
2010-01-05 19:39:27 +00:00
David van Moolenbroek
be992434e7 VM: make munmap(2) round length up, not down (reported by Althaf K Backer) 2010-01-05 09:40:07 +00:00
David van Moolenbroek
0dcf5b7aa8 add ptrace(2) TO_NOEXEC flag 2010-01-05 09:30:28 +00:00
David van Moolenbroek
709ca777bd start a.out2com script with 'sh' (Bug#365.1, reported by Antoine Leca) 2010-01-05 09:21:55 +00:00
David van Moolenbroek
bac0e91705 typo (Bug#376, reported by Kees van Reeuwijk) 2010-01-04 12:29:51 +00:00
David van Moolenbroek
c473cfcdda more kernel header typos 2010-01-01 20:18:05 +00:00
Erik van der Kouwe
7bbe4aaaa6 Add man entry for new errno code 2009-12-31 12:09:31 +00:00
Erik van der Kouwe
c42de8045f Added EILSEQ, based on newsgroup post by Leith 2009-12-31 11:48:08 +00:00
David van Moolenbroek
1489f14b37 Driver for Attansic L2 FastEthernet (atl2) 2009-12-30 22:42:44 +00:00
Erik van der Kouwe
41f3075f99 Man-page name order fixes 2009-12-30 20:35:05 +00:00
Erik van der Kouwe
eeeadf65f5 Add timeout to test42 2009-12-30 20:22:21 +00:00
David van Moolenbroek
44e46860c7 Kernel: fix do_stime.c header comment (2) 2009-12-30 14:56:54 +00:00
David van Moolenbroek
010e23e504 Kernel: fix do_stime.c header comment 2009-12-30 14:56:35 +00:00
David van Moolenbroek
d3fc0eca1d mdb(1) fixes:
- allow core file offsets with high bit set
- repair and enable gcc-compiled binary support
- fix bug leading to random command execution
- remove obsolete ptrace.2 manpage
2009-12-29 21:38:26 +00:00
David van Moolenbroek
ac9a5829a2 suppress kernel/VM memory debugging information 2009-12-29 21:35:12 +00:00
David van Moolenbroek
0bafee3d78 unbreak, deprivilege dumpcore(1) 2009-12-29 21:34:06 +00:00
David van Moolenbroek
e423c86009 ptrace(2) modifications:
- add T_GETRANGE/T_SETRANGE to get/set ranges of values
- change EIO error code to EFAULT
- move common-I&D text-to-data translation to umap_local
2009-12-29 21:32:15 +00:00
David van Moolenbroek
8da928d2df unbreak "make dos" in boot (Bug#365, patch by Antoine Leca) 2009-12-24 23:49:23 +00:00
David van Moolenbroek
c8f8d69204 Fix MFS ftruncate crash (Bug#370, reported by Aki Goto) 2009-12-24 23:43:16 +00:00
Erik van der Kouwe
6dc5d42798 Floating point support functions 2009-12-24 20:22:41 +00:00
David van Moolenbroek
5e9a8f05ff unbreak building CDs 2009-12-23 23:59:32 +00:00
David van Moolenbroek
692dc020e1 Correct ping(1) usage string (Bug#372, reported by Leith Brandeland 2009-12-23 23:42:07 +00:00
Cristiano Giuffrida
f24f987b95 Move setuid() hack where it belongs. 2009-12-23 16:26:28 +00:00
Cristiano Giuffrida
6f912993ff Share exec images in RS.
RS CHANGES:
- RS retains information on both labels and process names now. Labels for boot
processes are configured in the boot image priv table. Process names are
inherited from the in-kernel boot image table.
- When RS_REUSE is specified in do_up, RS looks for an existing slot having the
same process name as the one we are about to start. If one is found with
an in-memory copy of its executable image, the image is then shared between
the two processes, rather than copying it again. This behavior can be specified
by using 'service -r' when starting a system service from the command line.
2009-12-23 14:05:20 +00:00
David van Moolenbroek
123683d4a5 Console function keys and color support:
- if "debug_fkeys" boot monitor variable is set to 0:
  - pass Fn, Shift+Fn, Ctrl+Fn, Shift+Ctrl+Fn to applications
  - don't start IS
- update termcap files with function key, color, end key support
2009-12-22 23:30:50 +00:00
David van Moolenbroek
d5471320d9 another warning regression fix 2009-12-22 00:05:09 +00:00
David van Moolenbroek
7a345b3528 no! no new warnings 2009-12-21 23:39:08 +00:00
David van Moolenbroek
92ae5c81ae Filter driver updates:
- optionally vectorize I/O requests to work around hardware bugs
- extend default buffer size to cover MFS's default maximum request size
- use mmap directly, rather than alloc_contig
- add 'nil' checksum type for comparison with layout
- minor style corrections
2009-12-21 23:30:01 +00:00
David van Moolenbroek
492d663444 TTY fixes:
- reenable code to restore screen/cursor at shutdown
- add proper signal checking logic
- lock to first console during shutdown
2009-12-21 23:19:01 +00:00
Cristiano Giuffrida
1f5841c8ed Basic System Event Framework (SEF) with ping and live update.
SYSLIB CHANGES:
- SEF must be used by every system process and is thereby part of the system
library.
- The framework provides a receive() interface (sef_receive) for system
processes to automatically catch known system even messages and process them.
- SEF provides a default behavior for each type of system event, but allows
system processes to register callbacks to override the default behavior.
- Custom (local to the process) or predefined (provided by SEF) callback
implementations can be registered to SEF.
- SEF currently includes support for 2 types of system events:
  1. SEF Ping. The event occurs every time RS sends a ping to figure out
  whether a system process is still alive. The default callback implementation
  provided by SEF is to notify RS back to let it know the process is alive
  and kicking.
  2. SEF Live update. The event occurs every time RS sends a prepare to update
  message to let a system process know an update is available and to prepare
  for it. The live update support is very basic for now. SEF only deals with
  verifying if the prepare state can be supported by the process, dumping the
  state for debugging purposes, and providing an event-driven programming
  model to the process to react to state changes check-in when ready to update.
- SEF should be extended in the future to integrate support for more types of
system events. Ideally, all the cross-cutting concerns should be integrated into
SEF to avoid duplicating code and ease extensibility. Examples include:
  * PM notify messages primarily used at shutdown.
  * SYSTEM notify messages primarily used for signals.
  * CLOCK notify messages used for system alarms.
  * Debug messages. IS could still be in charge of fkey handling but would
  forward the debug message to the target process (e.g. PM, if the user
  requested debug information about PM). SEF would then catch the message and
  do nothing unless the process has registered an appropriate callback to
  deal with the event. This simplifies the programming model to print debug
  information, avoids duplicating code, and reduces the effort to print
  debug information.

SYSTEM PROCESSES CHANGES:
- Every system process registers SEF callbacks it needs to override the default
system behavior and calls sef_startup() right after being started.
- sef_startup() does almost nothing now, but will be extended in the future to
support callbacks of its own to let RS control and synchronize with every
system process at initialization time.
- Every system process calls sef_receive() now rather than receive() directly,
to let SEF handle predefined system events.

RS CHANGES:
- RS supports a basic single-component live update protocol now, as follows:
  * When an update command is issued (via "service update *"), RS notifies the
  target system process to prepare for a specific update state.
  * If the process doesn't respond back in time, the update is aborted.
  * When the process responds back, RS kills it and marks it for refreshing.
  * The process is then automatically restarted as for a buggy process and can
  start running again.
  * Live update is currently prototyped as a controlled failure.
2009-12-21 14:12:21 +00:00
Thomas Veerman
48ef79f78d Fix typo 2009-12-21 13:59:04 +00:00
David van Moolenbroek
d5dee93bee Support for larger disks.
- MFS, df(1), fsck(1), badblocks(8), de(1x) now compute the
  superblock's s_firstdatazone value if the on-disk value is zero
- mkfs(1) sets s_firstdatazone in the superblock to zero if the
  on-disk field is too small to store the actual value
- more agressive mkfs(1) inode number heuristic, copied from r5261
2009-12-21 11:20:30 +00:00
Thomas Veerman
6aa43dc9e4 Fix typo and a bug causing vnode references to become too low. 2009-12-21 09:36:34 +00:00
Thomas Veerman
bcecad33d5 Fix compilation errors caused by more files not added in previous commit 2009-12-20 21:31:03 +00:00
Thomas Veerman
951c5f6b73 Add PFS (missing in previous commit) 2009-12-20 20:41:50 +00:00