Commit graph

744 commits

Author SHA1 Message Date
Erik van der Kouwe
4690e8b015 Opps, forgot to svn add these files 2010-07-01 08:38:15 +00:00
Erik van der Kouwe
23284ee7bd User-space scheduling for system processes 2010-07-01 08:32:33 +00:00
Ben Gras
65be30daed libfetch - move fetch.3 to man and fetch.h to include 2010-07-01 00:05:48 +00:00
Ben Gras
429639f938 lib: added libfetch 2010-06-30 23:55:55 +00:00
Ben Gras
098412be83 small fixes for pkgsrc by Buccapatnam Tirumala, Gautam. 2010-06-30 12:18:34 +00:00
Cristiano Giuffrida
180358ffb4 Give RS a page table. 2010-06-28 22:07:49 +00:00
Cristiano Giuffrida
06700d05d1 Give RS a page table. 2010-06-28 21:53:37 +00:00
Ben Gras
8379b08845 library function to retrieve kernel proc table and sanity check it 2010-06-28 11:05:15 +00:00
Cristiano Giuffrida
377f4e7e31 Fix and comment a race in SEF Init 2010-06-27 09:01:15 +00:00
Ben Gras
01b5238d50 getsubopt: use regular assert()s 2010-06-26 02:37:17 +00:00
Ben Gras
aa6ff4c8be lib: setprogname() + getsubopt() 2010-06-26 00:44:24 +00:00
Arun Thomas
c0c8d25799 Rename mkfiles from minix.*.mk to bsd.*.mk
Makes things easier for pkgsrc
2010-06-25 18:29:09 +00:00
Ben Gras
45e4cce8c2 libc stubs for statvfs, contributed by Buccapatnam Tirumala, Gautam. 2010-06-23 23:51:29 +00:00
Erik van der Kouwe
50539c12f5 Remove obsolete mstats call 2010-06-23 10:43:08 +00:00
Ben Gras
24a5f48921 lib - a pwrite() implementation (Contributed by Buccapatnam Tirumala, Gautam) 2010-06-22 22:04:43 +00:00
Ben Gras
ddc3f62290 strptime() for minix. 2010-06-22 21:42:49 +00:00
Ben Gras
08f731bae0 original strptime. 2010-06-22 21:41:56 +00:00
Ben Gras
08e4312998 forget netbsd strptime. 2010-06-22 21:41:20 +00:00
Ben Gras
c7050eea55 original netbsd strptime 2010-06-22 21:37:54 +00:00
Ben Gras
81056ac999 stdio: j modifier for %d. (Contributed by Buccapatnam Tirumala, Gautam) 2010-06-22 16:22:17 +00:00
Tomas Hruby
21725c107d cd subdir && $(MAKE) targets -> $(MAKE) -C subdir targets
- first step towards parallel building
2010-06-22 12:03:09 +00:00
Ben Gras
15210b3e06 forget about multiple zeros on non-ack compiler, tracker item 457 2010-06-22 09:40:04 +00:00
Ben Gras
82dee9dbc3 add LC_MESSAGES 2010-06-22 09:31:16 +00:00
Ben Gras
6c0fcd575e lib: getproname: only return last path component 2010-06-20 00:24:35 +00:00
Ben Gras
3cc5e1add4 lib: no visibility features; fixes gcc warnings 2010-06-20 00:24:11 +00:00
Ben Gras
f60593cc35 libraries: fgetln() from pkgsrc branch. 2010-06-18 14:02:00 +00:00
Arun Thomas
042b5bf606 We have sys/cdefs.h now, so remove hacks. 2010-06-17 15:14:57 +00:00
Ben Gras
7b7091e905 zlib includes in lib/libz, install them too in /usr/include from toplevel makefile. 2010-06-17 15:05:20 +00:00
Ben Gras
ae947059e6 libraries, includes: libz: original libz source files with minix makefile. 2010-06-17 13:29:20 +00:00
David van Moolenbroek
eeab8e0680 libdriver: make partition code use a contiguous buffer 2010-06-13 10:40:22 +00:00
Arun Thomas
1b2c01db1b Makefile updates:
Turn on optimization
Remove some redundancy in FLAGS
2010-06-11 16:05:36 +00:00
Arun Thomas
f0a158d8c1 More cleanup to remove MM and FS references 2010-06-10 14:04:46 +00:00
David van Moolenbroek
2758519ed2 Change default hostname resolution order
Hostnames that contain at least one period, are now first attempted
to be resolved as FQDNs, before adding local domains is tried.
2010-06-10 11:14:36 +00:00
Ben Gras
1ce7983ee3 lib: declarations that needed ANSIfication since prototypes are declared 2010-06-09 13:01:11 +00:00
Ben Gras
c046958745 crtso.S: save *argv[] and argc globally, to be used by getprogname(). 2010-06-09 12:10:31 +00:00
Ben Gras
ba9990cc00 libc: minor minix changes for new netbsd files 2010-06-09 12:09:39 +00:00
Ben Gras
60d52d68da libc: add original netbsd files 2010-06-09 12:08:32 +00:00
Ben Gras
a0147a8c32 libutil: minix efun.c 2010-06-09 12:05:53 +00:00
Ben Gras
7b87ff5b11 libutil: original netbsd efun.c 2010-06-09 12:05:04 +00:00
Tomas Hruby
1207fcc6f0 int to endpoint_t conversions in mmap 2010-06-09 09:14:53 +00:00
Ben Gras
cccfe8e0ce lib: move tzfile.h from lib/libc/stdtime/ to include/ for general usage. 2010-06-08 19:11:42 +00:00
Arun Thomas
4c10a31440 Remove legacy MM, FS, and FS_PROC_NR macros 2010-06-08 13:58:01 +00:00
Ben Gras
035c5a369c move drivers/random SHA implementation to libutil and header to <minix/sha2.h> 2010-06-02 22:58:29 +00:00
Kees van Reeuwijk
36e12d5bd8 Use endpoint_t for the destination of mini_send and _syscall, and the
source of mini_receive.

Also some small cleanup.
2010-06-02 21:51:32 +00:00
Thomas Veerman
6bbcab3ec4 Clean up MFS a bit:
- Remove unused includes.
 - Add include guards to headers.
 - Use unsigned variables in case they're never going to hold a negative
   value. This causes GCC's complaints to disappear and should make flexelint
   a lot happier, too.
 - Make functions private when they're used only within a module.
 - Remove unused variables.
 - Add casts where appropriate.
2010-06-01 12:35:33 +00:00
Erik van der Kouwe
8bca982581 Remove those annoying $Id and $Revision tags 2010-05-31 20:00:08 +00:00
Erik van der Kouwe
8d06457241 Remove obsolete _fpu_present variable from crtso.S 2010-05-27 09:46:42 +00:00
Erik van der Kouwe
a31e9b0400 Oops, committed too much 2010-05-27 09:20:50 +00:00
Erik van der Kouwe
fc7438181b Avoid use of C++ reserved word class in headers (reported by Aki Goto, tracker item 375) 2010-05-27 09:18:49 +00:00
Arun Thomas
b48b037fbe Reorganize some directories
servers/hgfs/hgfs_server => servers/hgfs
servers/hgfs/libhgfs => lib/libhgfs
servers/rs/service => commands/service
drivers/memory/memory_driver => drivers/memory
drivers/memory/ramdisk => drivers/ramdisk
2010-05-26 22:49:57 +00:00
Tomas Hruby
a8111c5027 Various small scheduling related fixes 2010-05-26 07:16:39 +00:00
Erik van der Kouwe
1f11a57141 Oops, last commit included more than was intended 2010-05-20 08:07:47 +00:00
Erik van der Kouwe
5f15ec05b2 More system processes, this was not enough for the release script to run on some configurations 2010-05-20 08:05:07 +00:00
Arun Thomas
b0159ad168 Buildsystem changes for GCC
-Makefile updates
-Update mkdep
-Build fixes/warning cleanups for some programs
-Restore leading underscores on global syms in kernel asm files
-Increase ramdisk size
2010-05-19 13:24:15 +00:00
Erik van der Kouwe
77d5243f4a More sensible description for EPERM from http://www.opengroup.org/onlinepubs/000095399/basedefs/errno.h.html 2010-05-19 11:51:49 +00:00
Tomas Hruby
b09bcf6779 Scheduling server (by Bjorn Swift)
In this second phase, scheduling is moved from PM to its own
scheduler (see r6557 for phase one). In the next phase we hope to a)
include useful information in the "out of quantum" message and b)
create some simple scheduling policy that makes use of that
information.

When the system starts up, PM will iterate over its process table and
ask SCHED to take over scheduling unprivileged processes. This is
done by sending a SCHEDULING_START message to SCHED. This message
includes the processes endpoint, the parent's endpoint and its nice
level. The scheduler adds this process to its schedproc table, issues
a schedctl, and returns its own endpoint to PM - as the endpoint of
the effective scheduler. When a process terminates, a SCHEDULING_STOP
message is sent to the scheduler.

The reason for this effective endpoint is for future compatibility.
Some day, we may have a scheduler that, instead of scheduling the
process itself, forwards the SCHEDULING_START message on to another
scheduler.

PM has information on who schedules whom. As such, scheduling
messages from user-land are sent through PM. An example is when
processes change their priority, using nice(). In that case, a
getsetpriority message is sent to PM, which then sends a
SCHEDULING_SET_NICE to the process's effective scheduler.

When a process is forked through PM, it inherits its parent's
scheduler, but is spawned with an empty quantum. As before, a request
to fork a process flows through VM before returning to PM, which then
wakes up the child process. This flow has been modified slightly so
that PM notifies the scheduler of the new process, before waking up
the child process. If the scheduler fails to take over scheduling,
the child process is torn down and the fork fails with an erroneous
value.

Process priority is entirely decided upon using nice levels. PM
stores a copy of each process's nice level and when a child is
forked, its parent's nice level is sent in the SCHEDULING_START
message. How this level is mapped to a priority queue is up to the
scheduler. It should be noted that the nice level is used to
determine the max_priority and the parent could have been in a lower
priority when it was spawned. To prevent a CPU intensive process from
hawking the CPU by continuously forking children that get scheduled
in the max_priority, the scheduler should determine in which queue
the parent is currently scheduled, and schedule the child in that
same queue.

Other fixes: The USER_Q in kernel/proc.h was incorrectly defined as
NR_SCHED_QUEUES/2. That results in a "off by one" error when
converting priority->nice->priority for nice=0. This also had the
side effect that if someone were to set the MAX_USER_Q to something
else than 0, then USER_Q would be off.
2010-05-18 13:39:04 +00:00
David van Moolenbroek
9ba65d2ea8 This patch switches the MINIX3 ethernet driver stack from a port-based
model to an instance-based model. Each ethernet driver instance is now
responsible for exactly one network interface card. The port field in
/etc/inet.conf now acts as an instance field instead.

This patch also updates the data link protocol. This update:
- eliminates the concept of ports entirely;
- eliminates DL_GETNAME entirely;
- standardizes on using m_source for IPC and DL_ENDPT for safecopies;
- removes error codes from TASK/STAT replies, as they were unused;
- removes a number of other old or unused fields;
- names and renames a few other fields.

All ethernet drivers have been changed to:
- conform to the new protocol, and exactly that;
- take on an instance number based on a given "instance" argument;
- skip that number of PCI devices in probe iterations;
- use config tables and environment variables based on that number;
- no longer be limited to a predefined maximum of cards in any way;
- get rid of any leftover non-safecopy support and other ancient junk;
- have a correct banner protocol figure, or none at all.

Other changes:
* Inet.conf is now taken to be line-based, and supports #-comments.
  No existing installations are expected to be affected by this.
* A new, select-based asynchio library replaces the old one.
  Kindly contributed by Kees J. Bot.
* Inet now supports use of select() on IP devices.
  Combined, the last two changes together speed up dhcpd
  considerably in the presence of multiple interfaces.
* A small bug has been fixed in nonamed.
2010-05-17 22:22:53 +00:00
Erik van der Kouwe
7570df267f Full 64-bit multitplication and division added to u64 library 2010-05-17 16:44:26 +00:00
Arun Thomas
5706670029 Convert boot/ and commands/ over to bsdmake 2010-05-12 16:28:54 +00:00
Ben Gras
c5c25e7abc kernel/vm: change pde table info from single buffer to explicit per-process.
makes code in kernel more readable, and allows better sanity checking on
using the pde info.
2010-05-12 08:31:05 +00:00
Tomas Hruby
6e25ad8b0a Use of all NIL_* defines converted to NULL 2010-05-10 13:26:00 +00:00
Ben Gras
f78d8e74fd secondary cache feature in vm.
A new call to vm lets processes yield a part of their memory to vm,
together with an id, getting newly allocated memory in return. vm is
allowed to forget about it if it runs out of memory. processes can ask
for it back using the same id. (These two operations are normally
combined in a single call.)

It can be used as a as-big-as-memory-will-allow block cache for
filesystems, which is how mfs now uses it.
2010-05-05 11:35:04 +00:00
Kees van Reeuwijk
51d46f8e46 Let memory allocation be aligned on 8-byte boundaries. 2010-05-04 21:02:44 +00:00
Ben Gras
ca86603cd6 libc: malloc: don't enable SLOWDEBUG by default 2010-05-03 22:54:51 +00:00
Erik van der Kouwe
1137ba9b32 Extra assertions on free if SLOWDEBUG is enabled: check whether the block exists and has not been freed before 2010-05-03 19:42:08 +00:00
Erik van der Kouwe
4b34ff6903 Add syslib function to obtain CPU frequency 2010-05-03 19:41:04 +00:00
Kees van Reeuwijk
cfd28b671a Put the munmap and munmap_text trampolines in a separate .S file, so that they can be overridden independenly of mmap. 2010-04-29 20:12:56 +00:00
Ben Gras
99a13341bd cpufeature() - rename _SSEx and correct logic in cpufeature() in lib 2010-04-29 19:08:49 +00:00
Erik van der Kouwe
8e918c407a Enable malloc assertions 2010-04-28 08:34:19 +00:00
Erik van der Kouwe
a033e6fcae Add missing newline at end of file 2010-04-27 13:30:46 +00:00
Cristiano Giuffrida
0164957abb Unified crash recovery and live update.
RS CHANGES:
- Crash recovery is now implemented like live update. Two instances are kept
side by side and the dead version is live updated into the new one. The endpoint
doesn't change and the failure is not exposed (by default) to other system
services.
- The new instance can be created reactively (when a crash is detected) or
proactively. In the latter case, RS can be instructed to keep a replica of
the system service to perform a hot swap when the service fails. The flag
SF_USE_REPL is set in that case.
- The new flag SF_USE_REPL is supported for services in the boot image and
dynamically started services through the RS interface (i.e. -p option in the
service utility).
- Fixed a free unallocated memory bug for core system services.
2010-04-27 11:17:30 +00:00
Tomas Hruby
f51eea4b32 Changed pagefault delivery to VM
this patch changes the way pagefaults are delivered to VM. It adopts
the same model as the out-of-quantum messages sent by kernel to a
scheduler.

- everytime a userspace pagefault occurs, kernel creates a message
  which is sent to VM on behalf of the faulting process

- the process is blocked on delivery to VM in the standard IPC code
  instead of waiting in a spacial in-kernel queue (stack) and is not
  runnable until VM tell kernel that the pagefault is resolved and is
  free to clear the RTS_PAGEFAULT flag.

- VM does not need call kernel and poll the pagefault information
  which saves many (1/2?) calls and kernel calls that return "no more
  data"

- VM notification by kernel does not need to use signals

- each entry in proc table is by 12 bytes smaller (~3k save)
2010-04-26 23:21:26 +00:00
Kees van Reeuwijk
5b0efc542f Remove a redundant getdomainname() implementation. 2010-04-26 12:43:43 +00:00
David van Moolenbroek
aacbfc41cc intercept puts() in libsys, for gcc 2010-04-23 20:23:33 +00:00
Kees van Reeuwijk
e24ed988d6 Fix some compilation errors with the gcc compiler, fix some recent warnings. 2010-04-22 13:59:34 +00:00
Kees van Reeuwijk
86a23c1fbd Remove U16_t and most other similar types. Rewrite functions to ansi-style
declaration if necessary.
2010-04-21 11:05:22 +00:00
Kees van Reeuwijk
e85f78a20b Add some support for wchar_t. 2010-04-19 15:20:24 +00:00
David van Moolenbroek
05f8a5c550 unbreak _open for gcc-compiled programs 2010-04-14 11:07:49 +00:00
Kees van Reeuwijk
fa3adedf63 Remove some duplicate declarations in headers.
Explicitly declare some functions as returning void.
2010-04-13 15:22:38 +00:00
Kees van Reeuwijk
bc314bda91 Remove the types Dev_t, _mnx_Gui, _mnx_Uid, and similar.
Use ANSI-style function declarations where necessary.
2010-04-13 10:58:41 +00:00
Cristiano Giuffrida
65ef539739 Driver mapping refactory.
VFS CHANGES:
- dmap table no longer statically initialized in VFS
- Dropped FSSIGNON svrctl call no longer used by INET

INET CHANGES:
- INET announces its presence to VFS just like any other driver

RS CHANGES:
- The boot image dev table contains all the data to initialize VFS' dmap table
- RS interface supports asynchronous up and update operations now
- RS interface extended to support driver style and flags
2010-04-09 21:56:44 +00:00
Ben Gras
1c8c8aa4d8 isblank() implementation. 2010-04-08 15:00:25 +00:00
Cristiano Giuffrida
48c6bb79f4 Driver refactory for live update and crash recovery.
SYSLIB CHANGES:
- DS calls to publish / retrieve labels consider endpoints instead of u32_t.

VFS CHANGES:
- mapdriver() only adds an entry in the dmap table in VFS.
- dev_up() is only executed upon reception of a driver up event.

INET CHANGES:
- INET no longer searches for existing drivers instances at startup.
- A newtwork driver is (re)initialized upon reception of a driver up event.
- Networking startup is now race-free by design. No need to waste 5 seconds
at startup any more.

DRIVER CHANGES:
- Every driver publishes driver up events when starting for the first time or
in case of restart when recovery actions must be taken in the upper layers.
- Driver up events are published by drivers through DS. 
- For regular drivers, VFS is normally the only subscriber, but not necessarily.
For instance, when the filter driver is in use, it must subscribe to driver
up events to initiate recovery.
- For network drivers, inet is the only subscriber for now.
- Every VFS driver is statically linked with libdriver, every network driver
is statically linked with libnetdriver.

DRIVER LIBRARIES CHANGES:
- Libdriver is extended to provide generic receive() and ds_publish() interfaces
for VFS drivers.
- driver_receive() is a wrapper for sef_receive() also used in driver_task()
to discard spurious messages that were meant to be delivered to a previous
version of the driver.
- driver_receive_mq() is the same as driver_receive() but integrates support
for queued messages.
- driver_announce() publishes a driver up event for VFS drivers and marks
the driver as initialized and expecting a DEV_OPEN message.
- Libnetdriver is introduced to provide similar receive() and ds_publish()
interfaces for network drivers (netdriver_announce() and netdriver_receive()).
- Network drivers all support live update with no state transfer now.

KERNEL CHANGES:
- Added kernel call statectl for state management. Used by driver_announce() to
unblock eventual callers sendrecing to the driver.
2010-04-08 13:41:35 +00:00
Kees van Reeuwijk
c114df82ec Rename all uses of U8_t to u8_t and remove U8_t, remove unused I8_t,
Remove all uses of U16_t and U32_t in pci-related code.
If necessary to avoid problems, change functions to ansi-style declaration.
2010-04-07 13:35:56 +00:00
Kees van Reeuwijk
94a81c840a Removed unused variables, added const where possible. 2010-04-07 11:25:51 +00:00
Kees van Reeuwijk
0a04f49d2b Fixed some incorrect uses of printf-like functions. 2010-04-01 14:30:36 +00:00
Kees van Reeuwijk
fc7dced1fa Fix printfs with too few or too many parms, remove unused vars, fix incorrect flag tests, other code cleanup. 2010-04-01 13:25:05 +00:00
Cristiano Giuffrida
d8b42a755d Move kernel signal SIGKNDELAY to system signal SIGSNDELAY and fix broken ptrace. 2010-03-31 08:55:12 +00:00
Lorenzo Cavallaro
2ff73172b4 Fixed missing __UNCONST macro definition in previous patch. 2010-03-30 13:08:14 +00:00
Lorenzo Cavallaro
8dfc7699a6 cdecl calling convention requires to push arguments on the stack in a
reverse order to easily support variadic arguments. Thus, instead of
using the proper stdarg.h macros (that nowadays are
compiler-dependent), it may be tempting to directly take the address of
the last argument and considering it as the start of an array. This is
a shortcut that avoid looping to get all the arguments as the CPU
already pushed them on the stack before the call to the function.

Unfortunately, such an assumption is strictly compiler-dependent and
compilers are free to move the last argument on the stack, as a local
variable, and return the address of the location where the argument was
stored, if asked for. This will break things as the rest of the array's
argument are stored elsewhere (typically, a couple of words above the
location where the argument was stored).

This patch fixes the issue by allowing ACK to take the shortcut and
enabling gcc/llvm-gcc to follow the right way.
2010-03-30 09:36:46 +00:00
Tomas Hruby
b4cf88a04f Userspace scheduling
- cotributed by Bjorn Swift

- In this first phase, scheduling is moved from the kernel to the PM
  server. The next steps are to a) moving scheduling to its own server
  and b) include useful information in the "out of quantum" message,
  so that the scheduler can make use of this information.

- The kernel process table now keeps record of who is responsible for
  scheduling each process (p_scheduler). When this pointer is NULL,
  the process will be scheduled by the kernel. If such a process runs
  out of quantum, the kernel will simply renew its quantum an requeue
  it.

- When PM loads, it will take over scheduling of all running
  processes, except system processes, using sys_schedctl().
  Essentially, this only results in taking over init. As children
  inherit a scheduler from their parent, user space programs forked by
  init will inherit PM (for now) as their scheduler.

 - Once a process has been assigned a scheduler, and runs out of
   quantum, its RTS_NO_QUANTUM flag will be set and the process
   dequeued. The kernel will send a message to the scheduler, on the
   process' behalf, informing the scheduler that it has run out of
   quantum. The scheduler can take what ever action it pleases, based
   on its policy, and then reschedule the process using the
   sys_schedule() system call.

- Balance queues does not work as before. While the old in-kernel
  function used to renew the quantum of processes in the highest
  priority run queue, the user-space implementation only acts on
  processes that have been bumped down to a lower priority queue.
  This approach reacts slower to changes than the old one, but saves
  us sending a sys_schedule message for each process every time we
  balance the queues. Currently, when processes are moved up a
  priority queue, their quantum is also renewed, but this can be
  fiddled with.

- do_nice has been removed from kernel. PM answers to get- and
  setpriority calls, updates it's own nice variable as well as the
  max_run_queue. This will be refactored once scheduling is moved to a
  separate server. We will probably have PM update it's local nice
  value and then send a message to whoever is scheduling the process.

- changes to fix an issue in do_fork() where processes could run out
  of quantum but bypassing the code path that handles it correctly.
  The future plan is to remove the policy from do_fork() and implement
  it in userspace too.
2010-03-29 11:07:20 +00:00
Kees van Reeuwijk
98493805fd Lots of const correctness. 2010-03-27 14:31:00 +00:00
Lorenzo Cavallaro
a16308efdb cdecl calling convention expects the callee to pop the hidden pointer on
struct return. For example, GCC and LLVM comply with this (tested on IA32).

ACK doesn't seem to follow this convention and expects the caller to clean up
the stack. Compiling hand-written ACK-compliant assembly code (returning a 
struct) with GCC or LLVM used to break things (4-bytes misaligned stack).

The patch fixes this problem.
2010-03-24 17:25:17 +00:00
Kees van Reeuwijk
407316e451 More const correctness.
Removed prototype for unimplemented getpgid() function.
Removed a value return from a void function.
2010-03-23 14:25:09 +00:00
Cristiano Giuffrida
bde2109b7c IPC status code for receive().
IPC changes:
- receive() is changed to take an additional parameter, which is a pointer to
a status code.
- The status code is filled in by the kernel to provide additional information
to the caller. For now, the kernel only fills in the IPC call used by the
sender.

Syslib changes:
- sef_receive() has been split into sef_receive() (with the original semantics)
and sef_receive_status() which exposes the status code to userland.
- Ideally, every sys process should gradually switch to sef_receive_status()
and use is_ipc_notify() as a dependable way to check for notify.
- SEF has been modified to use is_ipc_notify() and demonstrate how to use the
new status code.
2010-03-23 00:09:11 +00:00
Arun Thomas
436d6012a3 Convert drivers/ and servers/ over to bsdmake
-Move libdriver to lib/
-Install all boot image services on filesystem to aid restartability
2010-03-22 21:25:22 +00:00
Tomas Hruby
12ef495cac atomicity fix when enabling paging
- before enabling paging VM asks kernel to resize its segments. This
  may cause kernel to segfault if APIC is used and an interrupt
  happens between this and paging enabled. As these are 2 separate
  vmctl calls it is not atomic. This patch fixes this problem. VM does
  not ask kernel to resize the segments in a separate call anymore.
  The new segments limit is part of the "enable paging" call. It
  generalizes this call in such a way that more information can be
  passed as need be or the information may be completely different if
  another architecture requires this.
2010-03-22 07:42:52 +00:00
Cristiano Giuffrida
cb176df60f New RS and new signal handling for system processes.
UPDATING INFO:
20100317:
        /usr/src/etc/system.conf updated to ignore default kernel calls: copy
        it (or merge it) to /etc/system.conf.
        The hello driver (/dev/hello) added to the distribution:
        # cd /usr/src/commands/scripts && make clean install
        # cd /dev && MAKEDEV hello

KERNEL CHANGES:
- Generic signal handling support. The kernel no longer assumes PM as a signal
manager for every process. The signal manager of a given process can now be
specified in its privilege slot. When a signal has to be delivered, the kernel
performs the lookup and forwards the signal to the appropriate signal manager.
PM is the default signal manager for user processes, RS is the default signal
manager for system processes. To enable ptrace()ing for system processes, it
is sufficient to change the default signal manager to PM. This will temporarily
disable crash recovery, though.
- sys_exit() is now split into sys_exit() (i.e. exit() for system processes,
which generates a self-termination signal), and sys_clear() (i.e. used by PM
to ask the kernel to clear a process slot when a process exits).
- Added a new kernel call (i.e. sys_update()) to swap two process slots and
implement live update.

PM CHANGES:
- Posix signal handling is no longer allowed for system processes. System
signals are split into two fixed categories: termination and non-termination
signals. When a non-termination signaled is processed, PM transforms the signal
into an IPC message and delivers the message to the system process. When a
termination signal is processed, PM terminates the process.
- PM no longer assumes itself as the signal manager for system processes. It now
makes sure that every system signal goes through the kernel before being
actually processes. The kernel will then dispatch the signal to the appropriate
signal manager which may or may not be PM.

SYSLIB CHANGES:
- Simplified SEF init and LU callbacks.
- Added additional predefined SEF callbacks to debug crash recovery and
live update.
- Fixed a temporary ack in the SEF init protocol. SEF init reply is now
completely synchronous.
- Added SEF signal event type to provide a uniform interface for system
processes to deal with signals. A sef_cb_signal_handler() callback is
available for system processes to handle every received signal. A
sef_cb_signal_manager() callback is used by signal managers to process
system signals on behalf of the kernel.
- Fixed a few bugs with memory mapping and DS.

VM CHANGES:
- Page faults and memory requests coming from the kernel are now implemented
using signals.
- Added a new VM call to swap two process slots and implement live update.
- The call is used by RS at update time and in turn invokes the kernel call
sys_update().

RS CHANGES:
- RS has been reworked with a better functional decomposition.
- Better kernel call masks. com.h now defines the set of very basic kernel calls
every system service is allowed to use. This makes system.conf simpler and
easier to maintain. In addition, this guarantees a higher level of isolation
for system libraries that use one or more kernel calls internally (e.g. printf).
- RS is the default signal manager for system processes. By default, RS
intercepts every signal delivered to every system process. This makes crash
recovery possible before bringing PM and friends in the loop.
- RS now supports fast rollback when something goes wrong while initializing
the new version during a live update.
- Live update is now implemented by keeping the two versions side-by-side and
swapping the process slots when the old version is ready to update.
- Crash recovery is now implemented by keeping the two versions side-by-side
and cleaning up the old version only when the recovery process is complete.

DS CHANGES:
- Fixed a bug when the process doing ds_publish() or ds_delete() is not known
by DS.
- Fixed the completely broken support for strings. String publishing is now
implemented in the system library and simply wraps publishing of memory ranges.
Ideally, we should adopt a similar approach for other data types as well.
- Test suite fixed.

DRIVER CHANGES:
- The hello driver has been added to the Minix distribution to demonstrate basic
live update and crash recovery functionalities.
- Other drivers have been adapted to conform the new SEF interface.
2010-03-17 01:15:29 +00:00
Thomas Veerman
bef0e3eb63 - Add support for the ucontext system calls (getcontext, setcontext,
swapcontext, and makecontext).
- Fix VM to not erroneously think the stack segment and data segment have
  collided when a user-space thread invokes brk().
- Add test51 to test ucontext functionality.
- Add man pages for ucontext system calls.
2010-03-12 15:58:41 +00:00
Kees van Reeuwijk
23e97af1b4 Add an UNUSED annotation, and use it in libsys. 2010-03-11 14:23:33 +00:00
Kees van Reeuwijk
5df6b80093 Clean up code in preparation for using gcc warnings. 2010-03-10 13:19:27 +00:00
Dirk Vogt
44231405cf fix newsigset/oldsigset references 2010-03-09 20:46:26 +00:00
Ben Gras
4f063f2925 fix for wrong arg to va_end() in panic() (thanks tveerman) 2010-03-08 14:36:55 +00:00
Arun Thomas
2a8fabf4ad Include directory reorg and makefile updates.
-Convert the include directory over to using bsdmake
 syntax
-Update/add mkfiles
-Modify install(1) so that it can create symlinks
-Update makefiles to use new install(1) options
-Rename /usr/include/ibm to /usr/include/i386
-Create /usr/include/machine symlink to arch header files
-Move vm_i386.h to its new home in the /usr/include/i386
-Update source files to #include the header files at their
 new homes.
-Add new gnu-includes target for building GCC headers
2010-03-08 11:04:59 +00:00
Ben Gras
35a108b911 panic() cleanup.
this change
   - makes panic() variadic, doing full printf() formatting -
     no more NO_NUM, and no more separate printf() statements
     needed to print extra info (or something in hex) before panicing
   - unifies panic() - same panic() name and usage for everyone -
     vm, kernel and rest have different names/syntax currently
     in order to implement their own luxuries, but no longer
   - throws out the 1st argument, to make source less noisy.
     the panic() in syslib retrieves the server name from the kernel
     so it should be clear enough who is panicing; e.g.
         panic("sigaction failed: %d", errno);
     looks like:
         at_wini(73130): panic: sigaction failed: 0
         syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
   - throws out report() - printf() is more convenient and powerful
   - harmonizes/fixes the use of panic() - there were a few places
     that used printf-style formatting (didn't work) and newlines
     (messes up the formatting) in panic()
   - throws out a few per-server panic() functions
   - cleans up a tie-in of tty with panic()

merging printf() and panic() statements to be done incrementally.
2010-03-05 15:05:11 +00:00
Arun Thomas
cbd276e4ce Convert library asm files to GAS syntax 2010-03-03 14:27:30 +00:00
Ben Gras
7c4cd0e6b0 - new pread(), fnmatch() calls
- split sprintf() and snprintf() to solve a linking problem when
   compiling an application
2010-02-25 17:08:08 +00:00
Arun Thomas
a4af231978 Improve makefile logic for building programs/libs 2010-02-24 11:58:05 +00:00
Arun Thomas
b706112487 Incorporate bsdmake into buildsystem and reorganize libs 2010-02-16 14:41:33 +00:00
Ben Gras
f08f2bd88c new free_contig() and changes to make drivers use it; so now we
have malloc/free, alloc_contig/free_contig and mmap/munmap nicely
paired up.

memory uses malloc/free instead of mmap/munmap as it doesn't have
to be contiguous for the ramdisks (and it might help if it doesn't!).
2010-02-10 13:56:26 +00:00
Tomas Hruby
d845891a50 And of course, as much as I've tried to be careful I forgot to add this file in
r6116 :(
2010-02-09 15:36:29 +00:00
Tomas Hruby
728f0f0c49 Removal of the system task
* Userspace change to use the new kernel calls

	- _taskcall(SYSTASK...) changed to _kernel_call(...)

	- int 32 reused for the kernel calls

	- _do_kernel_call() to make the trap to kernel

	- kernel_call() to make the actuall kernel call from C using
	  _do_kernel_call()

	- unlike ipc call the kernel call always succeeds as kernel is
	  always available, however, kernel may return an error

* Kernel side implementation of kernel calls

	- the SYSTEm task does not run, only the proc table entry is
	  preserved

	- every data_copy(SYSTEM is no data_copy(KERNEL

	- "locking" is an empty operation now as everything runs in
	  kernel

	- sys_task() is replaced by kernel_call() which copies the
	  message into kernel, dispatches the call to its handler and
	  finishes by either copying the results back to userspace (if
	  need be) or by suspending the process because of VM

	- suspended processes are later made runnable once the memory
	  issue is resolved, picked up by the scheduler and only at
	  this time the call is resumed (in fact restarted) which does
	  not need to copy the message from userspace as the message
	  is already saved in the process structure.

	- no ned for the vmrestart queue, the scheduler will restart
	  the system calls

	- no special case in do_vmctl(), all requests remove the
	  RTS_VMREQUEST flag
2010-02-09 15:20:09 +00:00
Ben Gras
3bcfb76e45 small asmconv cleanups.
- put asmconv in /usr/bin so it can be invoked without absolute path
 - make it ignore .end in gnu output mode so that it can be invoked
   without '|| true' in the gnu lib makefiles and it doesn't produce the
   messy error message
2010-02-03 13:29:14 +00:00
Kees van Reeuwijk
477b616fe8 Fixed a number of complaints about missing return statements.
Some cases were fixed by declaring the function void, others were fixed
by adding a return <value> statement, thereby avoiding potentially
incorrect behavior (usually in error handling).
Some enum correctness in boot.c.
2010-01-28 13:17:07 +00:00
Kees van Reeuwijk
2ba237cd4e Fixed a number of uses of uninitialized variables by adding assertions
or other sanity checks, code reshuffling, or fixing broken behavior.
2010-01-27 10:23:58 +00:00
Kees van Reeuwijk
b67f788eea Removed a number of useless #includes 2010-01-26 10:59:01 +00:00
Erik van der Kouwe
3ec29ae85e Add dirname function 2010-01-25 18:12:28 +00:00
Erik van der Kouwe
a89d141e90 Add getopt_long library function 2010-01-25 18:11:21 +00:00
Tomas Hruby
ee4cff8d66 2 copies of taskcall.c removed
- taskcall.c is 3x in the trunk as part of libc, libsysutil and
  libsys.  It should be only part of libsys.

- only system process should be linked with libsys, therefore using
  raw _taskcall() in service.c is replaced by _syscall()

- the same for minix_rs.c

- lib/other/sys_eniop.c can go without replacement as it is part of
  syslib
2010-01-25 14:22:09 +00:00
Kees van Reeuwijk
c43cdf06f8 Removed some uses of uninitialized variables in update.c, presumably remnands of old color support.
Fixed a few cases where free-ed memory blocks were subsequently read.
Removed some unused variables, #includes, other small cleanup.
2010-01-21 22:36:15 +00:00
Erik van der Kouwe
a5a2073680 create the getaddrinfo and getnameinfo library functions and friends 2010-01-21 06:38:17 +00:00
David van Moolenbroek
53a6e039de remove SYS_MAPDMA 2010-01-19 21:24:42 +00:00
David van Moolenbroek
cff75286df setgroups fix 2010-01-19 21:15:43 +00:00
David van Moolenbroek
61bb82a44b VM information interface 2010-01-19 21:00:20 +00:00
Ben Gras
716df202de make C function setgroups() be _setgroups(), called by the asm stub.
initgroups() can then use _setgroups() instead of setgroups().
2010-01-15 17:16:15 +00:00
Tomas Hruby
80d671aea7 _cpuid() - full cpuid instruction wrapper
- the prototype changes to 

	_cpuid(u32_t *eax, u32_t *ebx, u32_t *ecx, u32_t *edx)

- this makes possible to use all the features of the cpuid instruction as
  described in the Intel specs
2010-01-15 15:23:57 +00:00
Cristiano Giuffrida
c5b309ff07 Merge of Wu's GSOC 09 branch (src.20090525.r4372.wu)
Main changes:
- COW optimization for safecopy.
- safemap, a grant-based interface for sharing memory regions between processes.
- Integration with safemap and complete rework of DS, supporting new data types
  natively (labels, memory ranges, memory mapped ranges).
- For further information:
  http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants

Additional changes not included in the original Wu's branch:
- Fixed unhandled case in VM when using COW optimization for safecopy in case
  of a block that has already been shared as SMAP.
- Better interface and naming scheme for sys_saferevmap and ds_retrieve_map
  calls.
- Better input checking in syslib: check for page alignment when creating
  memory mapping grants.
- DS notifies subscribers when an entry is deleted.
- Documented the behavior of indirect grants in case of memory mapping.
- Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked
  and extended.
- Minor fixes and general cleanup.
- TO-DO: Grant ids should be generated and managed the way endpoints are to make
sure grant slots are never misreused.
2010-01-14 15:24:16 +00:00
David van Moolenbroek
b31119abf5 Mount updates:
- allow mounting with "none" block device
- allow unmounting by mountpoint
- make VFS aware of file system process labels
- allow m3_ca1 to use the full available message size
- use *printf in u/mount(1), as mount(2) uses it already
- fix reference leaks for some mount error cases in VFS
2010-01-12 23:08:50 +00:00
Erik van der Kouwe
f025e5f06b Implementations of readv and writev 2010-01-08 13:40:34 +00:00
Erik van der Kouwe
aec561acc5 Add scalbn family of functions 2010-01-08 07:27:54 +00:00
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
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
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
Erik van der Kouwe
c42de8045f Added EILSEQ, based on newsgroup post by Leith 2009-12-31 11:48:08 +00:00
Erik van der Kouwe
6dc5d42798 Floating point support functions 2009-12-24 20:22:41 +00:00
David van Moolenbroek
7a345b3528 no! no new warnings 2009-12-21 23:39:08 +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
bcecad33d5 Fix compilation errors caused by more files not added in previous commit 2009-12-20 21:31:03 +00:00
Thomas Veerman
958b25be50 - Introduce support for sticky bit.
- Revise VFS-FS protocol and update VFS/MFS/ISOFS accordingly.
- Clean up MFS by removing old, dead code (backwards compatibility is broken by
  the new VFS-FS protocol, anyway) and rewrite other parts. Also, make sure all
  functions have proper banners and prototypes.
- VFS should always provide a (syntactically) valid path to the FS; no need for
  the FS to do sanity checks when leaving/entering mount points.
- Fix several bugs in MFS:
  - Several path lookup bugs in MFS.
  - A link can be too big for the path buffer.
  - A mountpoint can become inaccessible when the creation of a new inode
    fails, because the inode already exists and is a mountpoint.
- Introduce support for supplemental groups.
- Add test 46 to test supplemental group functionality (and removed obsolete
  suppl. tests from test 2).
- Clean up VFS (not everything is done yet).
- ISOFS now opens device read-only. This makes the -r flag in the mount command
  unnecessary (but will still report to be mounted read-write).
- Introduce PipeFS. PipeFS is a new FS that handles all anonymous and
  named pipes. However, named pipes still reside on the (M)FS, as they are part
  of the file system on disk. To make this work VFS now has a concept of
  'mapped' inodes, which causes read, write, truncate and stat requests to be
  redirected to the mapped FS, and all other requests to the original FS.
2009-12-20 20:27:14 +00:00
Erik van der Kouwe
ac900e59ba Remove some GCC library warnings 2009-12-17 08:43:31 +00:00
Cristiano Giuffrida
e090013056 Drivers and servers are simply known as services.
/etc CHANGES:
- /etc/drivers.conf has been renamed to /etc/system.conf. Every entry in 
the file is now marked as "service" rather than driver.
- user "service" has been added to password file /etc/passwd.
- docs/UPDATING updated accordingly, as well as every other mention to the old
drivers.conf in the system.

RS CHANGES:
- No more distinction between servers and drivers.
- RS_START has been renamed to RS_UP and the old legacy RS_UP and RS_UP_COPY
dropped.
- RS asks PCI to set / remove ACL entries only for services whose ACL properties
have been set. This change eliminates unnecessary warnings.
- Temporarily minimize the risk of potential races at boot time or when starting
a new service. Upcoming changes will eliminate races completely.
- General cleanup.
2009-12-17 01:53:26 +00:00
Cristiano Giuffrida
f4574783dc Rewrite of boot process
KERNEL CHANGES:
- The kernel only knows about privileges of kernel tasks and the root system
process (now RS).
- Kernel tasks and the root system process are the only processes that are made
schedulable by the kernel at startup. All the other processes in the boot image
don't get their privileges set at startup and are inhibited from running by the
RTS_NO_PRIV flag.
- Removed the assumption on the ordering of processes in the boot image table.
System processes can now appear in any order in the boot image table.
- Privilege ids can now be assigned both statically or dynamically. The kernel
assigns static privilege ids to kernel tasks and the root system process. Each
id is directly derived from the process number.
- User processes now all share the static privilege id of the root user
process (now INIT).
- sys_privctl split: we have more calls now to let RS set privileges for system
processes. SYS_PRIV_ALLOW / SYS_PRIV_DISALLOW are only used to flip the
RTS_NO_PRIV flag and allow / disallow a process from running. SYS_PRIV_SET_SYS /
SYS_PRIV_SET_USER are used to set privileges for a system / user process.
- boot image table flags split: PROC_FULLVM is the only flag that has been
moved out of the privilege flags and is still maintained in the boot image
table. All the other privilege flags are out of the kernel now.

RS CHANGES:
- RS is the only user-space process who gets to run right after in-kernel
startup.
- RS uses the boot image table from the kernel and three additional boot image
info table (priv table, sys table, dev table) to complete the initialization
of the system.
- RS checks that the entries in the priv table match the entries in the boot
image table to make sure that every process in the boot image gets schedulable.
- RS only uses static privilege ids to set privileges for system services in
the boot image.
- RS includes basic memory management support to allocate the boot image buffer
dynamically during initialization. The buffer shall contain the executable
image of all the system services we would like to restart after a crash.
- First step towards decoupling between resource provisioning and resource
requirements in RS: RS must know what resources it needs to restart a process
and what resources it has currently available. This is useful to tradeoff
reliability and resource consumption. When required resources are missing, the
process cannot be restarted. In that case, in the future, a system flag will
tell RS what to do. For example, if CORE_PROC is set, RS should trigger a
system-wide panic because the system can no longer function correctly without
a core system process.

PM CHANGES:
- The process tree built at initialization time is changed to have INIT as root
with pid 0, RS child of INIT and all the system services children of RS. This
is required to make RS in control of all the system services.
- PM no longer registers labels for system services in the boot image. This is
now part of RS's initialization process.
2009-12-11 00:08:19 +00:00
Erik van der Kouwe
6adadade32 Implementation of strto(u)ll, documentation and tests for strto(u)l(l) 2009-12-09 19:01:38 +00:00
Erik van der Kouwe
bd0933a19b Implementation of getrlimit and getdtablesize 2009-12-07 19:56:40 +00:00
Erik van der Kouwe
09939b454e Fix line which was too long 2009-12-04 17:49:20 +00:00
Erik van der Kouwe
5427ab41c8 Add realpath function 2009-12-04 07:52:22 +00:00
Erik van der Kouwe
150dfbe96d Cleanup getsockopt and add SO_TYPE 2009-12-04 07:26:56 +00:00
Ben Gras
bd42705433 FPU context switching support by Evgeniy Ivanov. 2009-12-02 13:01:48 +00:00
David van Moolenbroek
fce9fd4b4e Add 'getidle' CPU utilization measurement infrastructure 2009-12-02 11:52:26 +00:00
David van Moolenbroek
f197bcb435 Allow servers to run with fewer privileges:
- allow non-root processes to get their own endpoint
- make alloc_contig() call sys_umap() only when requested
2009-12-02 10:06:58 +00:00
David van Moolenbroek
6da61b8f05 fix _NSIG usage 2009-11-28 13:20:50 +00:00
David van Moolenbroek
c6cce1823d Portability: POSIXize some of inet's error codes 2009-11-28 13:18:33 +00:00
David van Moolenbroek
4d4cb8fa24 Support for read/write on connected UDP sockets 2009-11-19 23:45:46 +00:00
David van Moolenbroek
3926b70b22 Remove dead mini_ds_retrieve_u32 code 2009-11-17 14:10:09 +00:00
Tomas Hruby
8a44a44cb9 Local APIC
- local APIC timer used as the source of time

- PIC is still used as the hw interrupt controller as we don't have
  enough info without ACPI or MPS to set up IO APICs

- remapping of APIC when switching paging on, uses the new mechanism
  to tell VM what phys areas to map in kernel's virtual space

- one more step to SMP

based on code by Arun C.
2009-11-16 21:41:44 +00:00
Tomas Hruby
04db2d7184 enable printing of 64-bit ints with gcc. 2009-11-11 12:15:08 +00:00
Tomas Hruby
b3b0a18403 allow kernel to tell VM extra physical addresses it wants mapped in.
used in the future for mapping in local APIC memory.
2009-11-11 12:07:06 +00:00
Tomas Hruby
ae75f9d4e5 Removal of the executable flag from files that cannot be executed
- 755 -> 644
2009-11-09 10:26:00 +00:00
Ben Gras
7e73260cf5 - enable remembering of device memory ranges set by PCI and
told to kernel
  - makes VM ask the kernel if a certain process is allowed
    to map in a range of physical memory (VM rounds it to page
    boundaries afterwards - but it's impossible to map anything
    smaller otherwise so I assume this is safe, i.e. there won't
    be anything else in that page; certainly no regular memory)
  - VM permission check cleanup (no more hardcoded calls, less
    hardcoded logic, more readable main loop), a loose end left
    by GQ
  - remove do_copy warning, as the ipc server triggers this but
    it's no more harmful than the special cases already excluded
    explicitly (VFS, PM, etc).
2009-11-03 11:12:23 +00:00
David van Moolenbroek
4c263d6002 PM: clean up endpoint info API/ABI 2009-10-31 14:09:28 +00:00
Erik van der Kouwe
cb6dbfca2c Add lspci command and SI_PCI_INFO getsysinfo call 2009-10-09 10:48:46 +00:00
Ben Gras
45ae52aec0 fix compiler warnings using dubious casts. 2009-10-05 16:41:28 +00:00
Ben Gras
2f4ea30d96 fix compiler warning 2009-10-05 16:40:21 +00:00
Ben Gras
1a85c6be78 fix compiler warning due to const char * -> char * 2009-10-05 16:38:12 +00:00
David van Moolenbroek
49808dcf77 PM delay call infrastructure improvements
- allow PM to tell sys_runctl() whether to use delay call feature
- only use this feature in PM for delivering signals - not for exits
- do better error checking in PM on sys_runctl() calls
- rename SIGKREADY to SIGNDELAY
2009-10-01 10:36:09 +00:00
David van Moolenbroek
b423d7b477 Merge of David's ptrace branch. Summary:
o Support for ptrace T_ATTACH/T_DETACH and T_SYSCALL
o PM signal handling logic should now work properly, even with debuggers
  being present
o Asynchronous PM/VFS protocol, full IPC support for senda(), and
  AMF_NOREPLY senda() flag

DETAILS

Process stop and delay call handling of PM:
o Added sys_runctl() kernel call with sys_stop() and sys_resume()
  aliases, for PM to stop and resume a process
o Added exception for sending/syscall-traced processes to sys_runctl(),
  and matching SIGKREADY pseudo-signal to PM
o Fixed PM signal logic to deal with requests from a process after
  stopping it (so-called "delay calls"), using the SIGKREADY facility
o Fixed various PM panics due to race conditions with delay calls versus
  VFS calls
o Removed special PRIO_STOP priority value
o Added SYS_LOCK RTS kernel flag, to stop an individual process from
  running while modifying its process structure

Signal and debugger handling in PM:
o Fixed debugger signals being dropped if a second signal arrives when
  the debugger has not retrieved the first one
o Fixed debugger signals being sent to the debugger more than once
o Fixed debugger signals unpausing process in VFS; removed PM_UNPAUSE_TR
  protocol message
o Detached debugger signals from general signal logic and from being
  blocked on VFS calls, meaning that even VFS can now be traced
o Fixed debugger being unable to receive more than one pending signal in
  one process stop
o Fixed signal delivery being delayed needlessly when multiple signals
  are pending
o Fixed wait test for tracer, which was returning for children that were
  not waited for
o Removed second parallel pending call from PM to VFS for any process
o Fixed process becoming runnable between exec() and debugger trap
o Added support for notifying the debugger before the parent when a
  debugged child exits
o Fixed debugger death causing child to remain stopped forever
o Fixed consistently incorrect use of _NSIG

Extensions to ptrace():
o Added T_ATTACH and T_DETACH ptrace request, to attach and detach a
  debugger to and from a process
o Added T_SYSCALL ptrace request, to trace system calls
o Added T_SETOPT ptrace request, to set trace options
o Added TO_TRACEFORK trace option, to attach automatically to children
  of a traced process
o Added TO_ALTEXEC trace option, to send SIGSTOP instead of SIGTRAP upon
  a successful exec() of the tracee
o Extended T_GETUSER ptrace support to allow retrieving a process's priv
  structure
o Removed T_STOP ptrace request again, as it does not help implementing
  debuggers properly
o Added MINIX3-specific ptrace test (test42)
o Added proper manual page for ptrace(2)

Asynchronous PM/VFS interface:
o Fixed asynchronous messages not being checked when receive() is called
  with an endpoint other than ANY
o Added AMF_NOREPLY senda() flag, preventing such messages from
  satisfying the receive part of a sendrec()
o Added asynsend3() that takes optional flags; asynsend() is now a
  #define passing in 0 as third parameter
o Made PM/VFS protocol asynchronous; reintroduced tell_fs()
o Made PM_BASE request/reply number range unique
o Hacked in a horrible temporary workaround into RS to deal with newly
  revealed RS-PM-VFS race condition triangle until VFS is asynchronous

System signal handling:
o Fixed shutdown logic of device drivers; removed old SIGKSTOP signal
o Removed is-superuser check from PM's do_procstat() (aka getsigset())
o Added sigset macros to allow system processes to deal with the full
  signal set, rather than just the POSIX subset

Miscellaneous PM fixes:
o Split do_getset into do_get and do_set, merging common code and making
  structure clearer
o Fixed setpriority() being able to put to sleep processes using an
  invalid parameter, or revive zombie processes
o Made find_proc() global; removed obsolete proc_from_pid()
o Cleanup here and there

Also included:
o Fixed false-positive boot order kernel warning
o Removed last traces of old NOTIFY_FROM code

THINGS OF POSSIBLE INTEREST

o It should now be possible to run PM at any priority, even lower than
  user processes
o No assumptions are made about communication speed between PM and VFS,
  although communication must be FIFO
o A debugger will now receive incoming debuggee signals at kill time
  only; the process may not yet be fully stopped
o A first step has been made towards making the SYSTEM task preemptible
2009-09-30 09:57:22 +00:00
Ben Gras
0d7b967413 give sys_fork() a real endpoint_t * arg 2009-09-23 10:48:57 +00:00
Erik van der Kouwe
789c8a6ee4 Fixed compilation errors in ps.c and rs/manager.c. The former was fixed by disabling code using no-longer-existant flags and the latter by removing the spurious parameter i from sys_privctl 2009-09-23 08:46:17 +00:00
Tomas Hruby
b900311656 endpoint_t in syslib
- headers use the endpoint_t in syslib.h and the implmentation was using int
  instead. Both uses endpoint_t now

- every variable named like proc, proc_nr or proc_nr_e of type endpoint_t has
  name proc_ep now

- endpoint_t defined as u32_t not int
2009-09-22 21:42:02 +00:00
Erik van der Kouwe
a97c9633ff Remove duplicate nanosleep stub 2009-09-22 12:05:22 +00:00
Ben Gras
813021b56b forgot to svn add this. 2009-09-21 19:56:30 +00:00
Ben Gras
d6819ff659 various syscall entry points 2009-09-21 14:46:10 +00:00
Ben Gras
40411ea908 rename GETPID to MINIX_GETPID (for now); macro for field name 2009-09-21 14:45:46 +00:00
Ben Gras
76ba69151d more vm stubs 2009-09-21 14:45:09 +00:00
Ben Gras
e8b3ac74a6 ftime() 2009-09-21 14:44:35 +00:00
Ben Gras
b2adf0c1ae more pid queries; PM field macros; vm stubs 2009-09-21 14:44:00 +00:00
Ben Gras
348978e64a vm stubs; no more sys_vm_setbuf 2009-09-21 14:42:58 +00:00
Ben Gras
c9fee544b6 sysvipc dir 2009-09-21 14:42:13 +00:00
Ben Gras
da8360c0a3 change startup code to call munmap()/munmap_text() to map out
own 0-pages.
2009-09-21 14:41:47 +00:00
Ben Gras
1c217d038c new sysv ipc call stubs 2009-09-21 14:41:03 +00:00
Ben Gras
8c2bece89f - remove unused kmalloc
- initial implementation of _read_host_time_ns, a function to retrieve
   real-time in ns in vmware virtual machines
2009-09-21 14:39:15 +00:00
David van Moolenbroek
979bcfc195 - sys_privctl: don't mix message types
- sys_privctl: remove CTL_MM_PRIV (third parameter)
- remove obsolete sys_svrctl.c library file
2009-09-06 12:37:13 +00:00
David van Moolenbroek
32b2758ba8 syslib: make sys_nice use field aliases 2009-09-05 12:51:00 +00:00
Erik van der Kouwe
ec4b567894 Avoid alarm to prevent the setitimer interval from being reset 2009-09-03 20:35:22 +00:00
David van Moolenbroek
8aeb17c75e typo 2009-09-02 21:55:26 +00:00
David van Moolenbroek
47e6506d7b support for TCP sockets in send/sendto/recv/recvfrom 2009-08-21 09:59:09 +00:00
Erik van der Kouwe
192c0be4a8 Fix HUGE_VAL warnings 2009-08-18 19:10:48 +00:00
Erik van der Kouwe
d81563a9b1 Fix HUGE_VAL warnings 2009-08-18 19:10:20 +00:00
Thomas Veerman
b47483433c Added a hack to start binaries from the boot image only. In particular, setting
bin_img=1 in the boot monitor will make sure that during the boot procedure the
mfs binary that is part of the boot image is the only binary that is used to
mount partitions. This is useful when for some reason the mfs binary on disk 
malfunctions, rendering Minix unable to boot. By setting bin_img=1, the binary
on disk is ignored and the binary in the boot image is used instead.

- 'service' now accepts an additional flag -r. -r implies -c. -r instructs RS
  to first look in memory if the binary has already been copied to memory and
  execute that version, instead of loading the binary from disk. For example,
  the first time a MFS is being started it is copied (-c) to memory and
  executed from there. The second time MFS is being started this way, RS will
  look in memory for a previously copied MFS binary and reuse it if it exists.
- The mount and newroot commands now accept an additional flag -i, which
  instructs them to set the MS_REUSE flag in the mount flags.
- The mount system call now supports the MS_REUSE flag and invokes 'service'
  with the -r flag when MS_REUSE is set.
- /etc/rc and the rc script that's included in the boot image check for the
  existence of the bin_img flag in the boot monitor, and invoke mount and 
  newroot with the -i flag accordingly.
2009-08-18 11:36:01 +00:00
Erik van der Kouwe
b3ab0cb03a Fixed some warnings 2009-08-17 18:48:57 +00:00
Erik van der Kouwe
fcbb7ac780 Fixed some warnings 2009-08-17 18:48:27 +00:00
Erik van der Kouwe
2d7dfd1a46 Fix warning in panic 2009-08-17 17:56:34 +00:00
Erik van der Kouwe
f5421e64f8 Nanosleep was implemented twice, removed from _sleep.c 2009-08-16 12:55:59 +00:00
Erik van der Kouwe
3573bc1abe Function nanosleep now checks arguments 2009-08-16 12:13:33 +00:00
David van Moolenbroek
5a13b2eda8 nanosleep(3), and sleep(3) rewrite, by Erik van der Kouwe 2009-08-15 22:14:48 +00:00
David van Moolenbroek
323f0abdd6 Support for setitimer(ITIMER_VIRTUAL/ITIMER_PROF). New test (41) for setitimer. 2009-08-15 21:37:26 +00:00
David van Moolenbroek
d82e260a90 Support for setitimer(ITIMER_REAL). 2009-08-15 16:09:32 +00:00
Tomas Hruby
88f7b63019 u64_t for human beings - the high and low parts are named hi and lo, lib/sysutil/profile.c updated accordingly 2009-08-13 15:47:49 +00:00
David van Moolenbroek
aae63b5410 move _mount.c from lib/posix to lib/other 2009-08-13 09:55:50 +00:00
Thomas Veerman
c2ffe723d1 - Moved (u)mount prototypes from unistd.h to sys/mount.h.
- Prepared mount system call to accept multiple mount flags
   instead of just read_only (however, it remains backwards
   compatible).
 - Updated the man mount(2) to reflect new header file usage. 
 - Updated badblocks, newroot, mount, and umount commands to use the
   new header file.
2009-08-12 19:57:37 +00:00
David van Moolenbroek
1d0e43c8f1 make remove(3) remove directories as well 2009-07-12 14:44:37 +00:00
David van Moolenbroek
83885ebc39 make lseek64 return correct new position 2009-05-23 13:47:17 +00:00
Ben Gras
bdab3c4cfb Library call for cpu features; make kernel and vm use this to query cpu
features (specifically: 4MB pages and TLB global bit).  Only enable
these features in CR4 if available. 4MB pages to be used in the near
future.
2009-05-15 17:07:36 +00:00
Ben Gras
143422fa0a C CPUID interface. 2009-05-14 15:55:28 +00:00
David van Moolenbroek
fe8c612aa4 support in 'mount' for specifying file system type and options 2009-05-13 15:39:44 +00:00
David van Moolenbroek
a2485b346c potential buffer overruns in env_* routines 2009-05-10 16:54:37 +00:00
Ben Gras
9647fbc94e moved type and constants for random data to include file;
added consistency check in random; added source of randomness
internal to random using timing; only retrieve random bins that are full.
2009-04-02 15:24:44 +00:00
Ben Gras
a742aed5ad only assign value if request went ok. 2009-02-19 17:14:36 +00:00
Ben Gras
59e972f074 let drivers allocate memory at 64k physical boundary. 2009-02-12 12:26:08 +00:00
Ben Gras
c628f24bc2 moved stacktrace to sysctl, as vmctl is very privileged so can't
be used outside VM. IS code cleanup. added stacktrace feature to IS.
2009-01-27 12:54:33 +00:00
Ben Gras
3cc092ff06 . new kernel call sysctl for generic unprivileged system operations;
now used for printing diagnostic messages through the kernel message
   buffer. this lets processes print diagnostics without sending messages
   to tty and log directly, simplifying the message protocol a lot and
   reducing difficulties with deadlocks and other situations in which
   diagnostics are blackholed (e.g. grants don't work). this makes
   DIAGNOSTICS(_S), ASYN_DIAGNOSTICS and DIAG_REPL obsolete, although tty
   and log still accept the codes for 'old' binaries. This also simplifies
   diagnostics in several servers and drivers - only tty needs its own
   kputc() now.
 . simplifications in vfs, and some effort to get the vnode references
   right (consistent) even during shutdown. m_mounted_on is now NULL
   for root filesystems (!) (the original and new root), a less awkward
   special case than 'm_mounted_on == m_root_node'. root now has exactly
   one reference, to root, if no files are open, just like all other
   filesystems. m_driver_e is unused.
2009-01-26 17:43:59 +00:00
Ben Gras
e190ff9f84 cprofile always on 2009-01-09 21:42:36 +00:00
Ben Gras
ad03a650e6 timing library from kernel into library 2009-01-09 16:39:31 +00:00
Ben Gras
46ecfa2b5c syslib function for VMCTL_STACKTRACE 2008-12-16 14:42:32 +00:00
Ben Gras
6300c26921 prototype fix 2008-12-11 15:02:44 +00:00
Ben Gras
fe3e0181d4 straggler. 2008-12-11 14:55:06 +00:00
Ben Gras
6cfe4bdd2d slight args change 2008-12-11 14:37:42 +00:00
Ben Gras
991000dd70 dynamic HZ 2008-12-11 14:37:18 +00:00
Ben Gras
eae27c899a move senda to sep. file 2008-12-11 14:37:02 +00:00
Ben Gras
3e29947e28 No more HZ; move stacktrace() to library 2008-12-11 14:36:37 +00:00
Ben Gras
9b33056d2b make allocmem accept and return values in bytes, ramdisk expects this. 2008-11-19 15:40:17 +00:00
Ben Gras
b686e8b6d7 lingering file. 2008-11-19 12:35:46 +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
39aa2e6489 A glob() implementation. 2008-04-08 13:14:33 +00:00
Philip Homburg
4951a741b0 adddma/deldma/getdma/sys_mapdma 2008-02-21 16:02:22 +00:00
Philip Homburg
959ed5a191 Added ERESTART 2008-02-21 16:00:39 +00:00
Ben Gras
50fa859819 A rint() implementation. 2007-12-14 11:59:54 +00:00
Ben Gras
bd489b6c0b Original imported versions of s_rint.c and math_private.h. 2007-12-11 12:32:26 +00:00
Philip Homburg
af678531aa Disabled some debug output in recvfrom. 2007-09-17 11:22:06 +00:00
Philip Homburg
9c3f85d14f Better interface for sys_times. 2007-08-16 13:16:26 +00:00
Philip Homburg
2519a7cb61 Added getuptime2.c 2007-08-07 12:14:04 +00:00
Philip Homburg
5aa84fb0e6 Added mapdriver5.s. 2007-08-07 12:05:36 +00:00
Philip Homburg
21e7edb683 Added sys_stime.c, T_CHILD_UTIME and T_CHILD_STIME are gone, should
change interface of sys_times.
2007-08-07 12:04:29 +00:00
Philip Homburg
1f02168ce7 Added _mapdriver5.c. 2007-08-07 12:02:38 +00:00
Ben Gras
03446f5554 micro_delay in sysutil, used in ti1225, dp8390, fxp and
orinoco now. Uses a combination of tickdelay (where possible) and
calibrated busywait (where necessary).
2007-07-31 15:01:49 +00:00
Ben Gras
ee3e40516b . clarify panic messages in syslib about pci
. use ds_retrieve_u32 instead of _pm_findproc
2007-07-11 13:38:13 +00:00
Philip Homburg
9852471c08 Use ds_retrieve_u32 to find the endpoint of pci. 2007-05-02 11:24:51 +00:00
Philip Homburg
69ca935251 getpeuid implementation. Get the uid of a process (by endpoint) 2007-04-27 12:21:06 +00:00
Philip Homburg
82e77742b5 Added pci_del_acl. Fixed return value of pci_set_acl. 2007-04-23 12:14:44 +00:00
Philip Homburg
4ce2267dd3 Type _exit and abort before generating a trap. 2007-04-23 12:13:51 +00:00
Philip Homburg
4ce9ca03cf Added cpf_reload to reload the safecopy table pointer (for example after a
fork).
2007-04-23 12:12:32 +00:00
Philip Homburg
e9899f3c86 Added sendnb and senda, removed echo and _ipcnew.s. 2007-04-23 12:11:03 +00:00
Ben Gras
a2b1a5134b . leave out hardware-fp code from library
. minor packman usage tweaks
 . kernel feature for printing version number
 . removed some verbose debug messages from vfs/mfs
2007-04-12 16:45:00 +00:00
Ben Gras
7dd225ffb2 delete redundant source 2007-04-12 16:30:59 +00:00
Ben Gras
d61a481169 put the zoneinfo library files directly in the lib/stdtime dir 2007-04-12 14:29:30 +00:00
Ben Gras
85198a280c fix some compiler warnings. 2007-04-02 15:10:07 +00:00
Ben Gras
056ac0a0d3 replace library time handling functions
mktime, tzset, asctime, ctime, gmtime, localtime, strftime
with zoneinfo implementations in src/commands/zoneinfo, referenced
from src/lib/stdtime/Makefile.in.
2007-03-30 15:36:49 +00:00
Ben Gras
6ccd37a982 fix for filenames with paths 2007-03-30 15:35:15 +00:00
Ben Gras
6d50591226 . let kernel use read_tsc() from sysutil library
. read_tsc() in sysutil library saves edx and eax now
 . added read_tsc_64() by Antonio Mancina to load tsc into
   a 64-bit data type directly
 . deleted read_tsc.h in favour of a prototype in <minix/syslib.h>
2007-03-08 15:39:14 +00:00
Ben Gras
be30a639cd Don't sys_kill SELF if a PM exit fails; just generate a fault to get
us killed through the kernel with PM finding out.

This makes it unnecessary for servers and drivers to be able to do
sys_kill generally, so KILL can go out of /etc/drivers.conf.
2007-02-23 12:54:02 +00:00
Ben Gras
168d766f32 . pci driver now returns devices, even when they have been pci_reserve()d
. pci_reserve() returns an error on devices that have already been reserved,
  instead of panic()ing; the pci_reserve() library call still panics,
  pci_reserve_ok() returns an int.
. this allows at_wini to use the instance value as intended, as all devices
  are seen, even reserved ones
. only devices actually used by at_wini are pci_reserve()d
. pci doesn't release devices based on argv[0], as at_wini both have the
  same name and multiple instances won't work together properly
2007-02-20 17:09:19 +00:00
Ben Gras
3275602598 . made memory parsing function into a library call
(moved 'struct memory' to <minix/type.h> for this library call)
 . removed some debugging messages from pci library
2007-02-16 15:54:28 +00:00
Ben Gras
2194bc0310 vfs/mount/rs/service changes:
. changed umount() and mount() to call 'service', so that it can include
   a custom label, so that umount() works again (RS slot gets freed now).
   merged umount() and mount() into one file to encode keep this label
   knowledge in one file.
 . removed obsolete RS_PID field and RS_RESCUE rescue command
 . added label to RS_START struct
 . vfs no longer does kill of fs process on unmount (which was failing
   due to RS_PID request not working)
 . don't assume that if error wasn't one of three errors, that no error
   occured in vfs/request.c
mfs changes:
 . added checks to copy statements to truncate copies at buffer sizes
   (left in debug code for now)
 . added checks for null-terminatedness, if less than NAME_MAX was copied
 . added checks for copy function success
is changes: 
 . dump rs label
drivers.conf changes:
 . added acl for mfs so that mfs can be started with 'service start',
   so that a custom label can be provided
2007-01-22 15:25:41 +00:00
Ben Gras
f307d84cda Zlib is now an optional package. 2007-01-09 17:08:31 +00:00
Ben Gras
6f77685609 Split of architecture-dependent and -independent functions for i386,
mainly in the kernel and headers. This split based on work by
Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture
port.

 . kernel does not program the interrupt controller directly, do any
   other architecture-dependent operations, or contain assembly any more,
   but uses architecture-dependent functions in arch/$(ARCH)/.
 . architecture-dependent constants and types defined in arch/$(ARCH)/include.
 . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now,
   architecture-independent functions.
 . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls
   and live in arch/i386/do_* now.
 . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have
   gone, and 'machine.protected' is gone (and always taken to be 1 in i386).
   If 86 support is to return, it should be a new architecture.
 . prototypes for the architecture-dependent functions defined in
   kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h
 . /etc/make.conf included in makefiles and shell scripts that need to
   know the building architecture; it defines ARCH=<arch>, currently only
   i386.
 . some basic per-architecture build support outside of the kernel (lib)
 . in clock.c, only dequeue a process if it was ready
 . fixes for new include files

files deleted:
 . mpx/klib.s - only for choosing between mpx/klib86 and -386
 . klib86.s - only for 86

i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/:
 . mpx386.s (entry point)
 . klib386.s
 . sconst.h
 . exception.c
 . protect.c
 . protect.h
 . i8269.c
2006-12-22 15:22:27 +00:00
Ben Gras
4daf936bd2 BSD versions of strcasecmp() and strncasecmp() after a bug
in strcasecmp() reported by Rogier Meurs <rogier@meurs.org>.
2006-12-19 13:15:16 +00:00
David van Moolenbroek
d4e6fe3546 Setjmp/longjmp updates and cleanup. 2006-12-08 16:23:18 +00:00
Philip Homburg
170a72fd61 Missing lseek64 library functions. 2006-12-07 20:01:43 +00:00
Philip Homburg
8a2a957d49 Some 64-bit file offset changes that were left out accidentally in the first
commit.
2006-12-06 15:21:27 +00:00
Philip Homburg
d84dd06b3f Better error handling in _mount.c 2006-11-24 14:01:14 +00:00
Ben Gras
03be184bd6 Fix warnings (Ingmar Alting) 2006-11-10 18:19:38 +00:00
Ben Gras
f8a5db5ab0 Fix some warnings (by Ingmar Alting) 2006-11-10 18:13:02 +00:00
Philip Homburg
ca448f0b0f Getdents implementation in library/vfs/mfs.
Changed readdir, etc. to use getdents
2006-11-09 16:22:54 +00:00
Ben Gras
7195fe3325 System statistical and call profiling
support by Rogier Meurs <rogier@meurs.org>.
2006-10-30 15:53:38 +00:00
Ben Gras
fa0ba56bc9 Merge of VFS by Balasz Gerofi with Minix trunk. 2006-10-25 13:40:36 +00:00
Philip Homburg
f9ccfca2a1 (Incomplete) support for access control in PCI (pci_set_acl).
-script argument to service for crash recovery scripts
-config argument to service for driver resource configuration
restart command in service to restart a driver after a crash (for use in
crash recovery scripts).
down and refresh now take labels instead of pids.
verious changes in rs to make this work.
2006-10-20 15:01:32 +00:00
Philip Homburg
be928f01a5 Nice(3) implementation 2006-10-20 14:10:53 +00:00
Philip Homburg
d24a880003 Added EOPNOTSUPP and better error handling in accept. 2006-09-14 13:48:41 +00:00
Ben Gras
b90b5898e4 Let installing work as bin 2006-08-17 10:10:42 +00:00
Philip Homburg
6076eddf9c Use syslog for logging. 2006-08-10 14:11:25 +00:00
Ben Gras
5d8c07b3f2 Fix by Joren for setjmp to not clobber %ebx. 2006-08-02 12:03:02 +00:00
Ben Gras
18327f02a8 Introduced unprivileged getsysinfo variant, to retrieve harmless data
in formats that don't change (or is upwards compatible).
2006-07-27 16:23:01 +00:00
Ben Gras
6c7004423d Fix for %#02x bug (shouldn't print 0x, but junk was printed) found by
Joren l'Ami.  Also fixes %p when arg is 0 (printed 0 instead of 0x0).
2006-07-21 10:08:47 +00:00
Philip Homburg
59830eda3f Prototypes for send and recv. Fixed send (pass null address) and sendto
(fail when a null address is passed to a socket that is not connected).
2006-07-14 14:34:00 +00:00
Philip Homburg
ee46e92dd2 Fixed ruserok not to required /etc/hosts.equiv. 2006-07-14 12:48:01 +00:00
Ben Gras
3512a86b44 . DS understands publishing and subscribing where keys are in string
form. Subscriptions are regular expressions.
 . different types are stored per key; currently u32 and/or string.
   the same key can be referenced (publish, subscribe, check) as any type.
 . notify()s are sent when subscriptions are triggered (publishing or
   updating of matching keys); optionally, a subscribe flag sends
   updates for all matching keys at subscription time, instead of only
   after updates after subscribing
 . all interfacing to ds is in /usr/src/lib/syslib/ds.c.
 . subscribe is ds_subscribe
   publish functions are ds_publish_<type>
   retrieve functions are ds_retrieve_<type> (one-time retrieval of a value)
   check functions are ds_check_<type> (check for updated key caller
      subscribes to not yet checked for, or ESRCH for none)
 . ramdisk driver updated with new ds interface
2006-07-13 14:50:23 +00:00
Philip Homburg
73e5de6354 Added sys_readbios.
Changed pci_dev_name and pci_slot_name to use safecopies.
Mae it possible to disable the use of safecopies in kputc for debugging.
2006-07-10 12:17:16 +00:00
Ben Gras
1561067ee4 Grant system dynamic-only. 2006-06-30 14:40:29 +00:00
Ben Gras
6b1f8de38a Added _select() stub for select(). 2006-06-27 18:28:33 +00:00
Ben Gras
59bedc2074 let dynamic allocation of table work 2006-06-27 14:15:47 +00:00
Ben Gras
607fb6bf7f Add a flag to grants system indicating a slot is VALID; so a slot
can be reserved (USED), while toggling VALID on and off.
2006-06-27 12:19:45 +00:00
Ben Gras
a587273c56 . expanded grant manipulation interface to more direct
manipulation
. made fs allocate a grant for every ioctl, even if no data
  is being copied, in order to disambiguate concurrent ioctls
  on the same minor
2006-06-26 16:08:42 +00:00
Ben Gras
3b814d36d1 Rename paramctl to setgrant. 2006-06-23 15:35:05 +00:00
Ben Gras
002922fa4c New kernel call, SYS_PARAMCTL, that sets parameters of the caller
and is therefore unprivileged. Used to set grant tables.
2006-06-23 15:07:41 +00:00
Ben Gras
0e9c6932c4 use malloc() + copy + free() instead of realloc() 2006-06-23 12:07:41 +00:00
Ben Gras
31318a8ce5 library interface for vectored safecopy variant. 2006-06-23 11:54:35 +00:00
Philip Homburg
529ca8a4df Added strlcat and strlcpy. 2006-06-22 11:47:18 +00:00
Ben Gras
9df1183b94 . removed const from putenv() for g++
. added safecopies.c:
  these are library functions to maintain grant tables in own address space
. sys_safecopy.c:
  interfaces to kernel calls to perform safe copy functions in from or to
  foreign process
. changes in i/o fields (type merged with request) reflected in
  library functions (sys_out.c, sys_vinb.c, sys_vinl.c, sys_vinw.c,
  sys_voutb.c, sys_voutl.c, sys_voutw.c)
. type merged with request in sys_sdevio, also now accepts offset which
  is used when a grant is specified (the _DIO_SAFE subtype)
. system printf() function changed to send DIAGNOSTICS_S messages, which
  specify a grant id instead of a direct address for the buffer to be
  printed; tty and log can then safecopy the buffer
2006-06-20 08:45:04 +00:00
Philip Homburg
a617a46e35 Retry read after EINTR. 2006-06-14 13:18:53 +00:00
Philip Homburg
acebf7b52f Important BSD version of setenv, added killpg, replaced _sigsetjmp.c with
an assembler jump to longjmp.
2006-06-07 14:38:39 +00:00
Philip Homburg
3ea083b8d4 Actually remove allocmem and freemem sources from the library. 2006-05-19 12:45:55 +00:00
Philip Homburg
e9aabcf2f8 Disabled building rescue driver (no longer needed). Moved allocmem from
library to the memory driver. Always put output from within TTY directly on
the console. Removed second include of driver.h from tty.c. Made tty_inrepcode
bigger. First step to move PM and FS calls that are not regular (API)
system calls out of callnr.h (renumbered them, and removed them from the
table.c files). Imported the Minix-vmd uname implementation. This provides
a more stable ABI than the current implementation. Added a bit of security
checking. Unfortunately not nearly enough to get a secure system. Fixed a
bug related to the sizes of the programs in the image (in PM patch_mem_chunks).
2006-05-19 12:19:37 +00:00
Philip Homburg
71917d6383 Changes for restarting disk drivers and new interface between PM and FS. 2006-05-11 14:47:31 +00:00
Ben Gras
461a4fafb1 Added fchmod() and fchown() 2006-04-18 11:26:04 +00:00
Ben Gras
3172b4d0ad Patches by Jeff Bailey for posixifications. 2006-04-09 23:16:13 +00:00
Ben Gras
23f881aa29 Hack to mask 1586 ('extended family') as 686 2006-04-05 20:57:18 +00:00
Ben Gras
7d0b64505a Added getifaddrs() 2006-04-03 15:03:43 +00:00
Ben Gras
d464faf987 updated syslog(), added setenv() 2006-04-03 15:03:07 +00:00
Philip Homburg
846ae81717 Fix for 'pci: mem_top too low' panic. Removed 'pci_next_dev: got nothing'
message.
2006-04-03 12:12:04 +00:00
Ben Gras
9e2ee91082 Don't close the master fd before returning if slave opens ok 2006-03-27 11:08:53 +00:00
Ben Gras
894fa0520e getsockname() reported local port and remote address - changed to local address. 2006-03-27 11:07:06 +00:00
Ben Gras
7b58dd7f9b Renamed findproc() to _pm_findproc() to reduce polluting of application
namespace.
2006-03-25 04:49:04 +00:00
Philip Homburg
e6dbd5cabf Added SO_ERROR support for tcp sockets. 2006-03-24 14:07:42 +00:00
Ben Gras
65723cba53 Fix compiler warnings for pax 2006-03-24 14:03:25 +00:00
Ben Gras
0bcb14b384 _SC_PAGESIZE sysconf() support 2006-03-23 11:05:15 +00:00
Philip Homburg
36e8c1a185 Added assert to syslib. Moved panic from sysutil to syslib for assert.
Panic now tries sys_kill with SIGKILL first.
2006-03-15 12:06:18 +00:00
Jorrit Herder
376d8485d8 *** empty log message *** 2006-03-10 16:20:24 +00:00
Jorrit Herder
453beb04ad Library progress 2006-03-10 16:16:21 +00:00
Ben Gras
5d7f5fccf5 . rename message fields to endpoint variants
. remove or optionalify some pci debugging stuff
2006-03-03 09:44:55 +00:00
Philip Homburg
b13e39ed1b Conditional compilation for SIGIOT and SIGEMT. 2006-02-17 14:12:47 +00:00
Philip Homburg
1991246020 Socket options SO_RCVBUF, SO_SNDBUF, and TCP_NODELAY. 2006-02-17 13:45:41 +00:00
Philip Homburg
38804a964b More error texts. 2006-02-17 13:44:48 +00:00
Ben Gras
30f7f852ba Really disable debug 2006-02-15 14:22:40 +00:00
Philip Homburg
7034c0795d Moved PCI driver to the ramdisk. 2006-02-15 14:21:56 +00:00
Ben Gras
1116853ae9 Turn off debug in getsockname.c
allow NULL for setgroups argument
2006-02-15 14:16:06 +00:00
Ben Gras
39816868de Make initgroups() fail if user has any supplemental groups. 2006-02-13 15:06:01 +00:00
Ben Gras
5911460ce5 Fake setgroups() and initgroups() implementation. 2006-02-13 15:00:49 +00:00
Ben Gras
a3bda44a41 . use proper S_ISFIFO for ISFIFO check
. ignore ESPIPE error from lseek() in fflush() on read streams
  (because fifo's aren't detected when stdin, stdout or stderr)
2006-02-02 16:59:07 +00:00
Philip Homburg
8ec6f7af83 Make sys_privctl make the prototype. 2006-01-27 14:14:13 +00:00
Ben Gras
7392c839e0 fts import from freebsd
re-activated fchdir()
2006-01-27 14:01:36 +00:00
Philip Homburg
4a713d8b6d Added sys_privctl.c. 2006-01-27 12:54:47 +00:00
Ben Gras
030c1c2560 fchdir() fix 2006-01-20 12:49:24 +00:00
Ben Gras
36f91229ea Re-enable fchdir() 2006-01-20 12:44:16 +00:00
Ben Gras
a85797f486 Make error message conditional 2006-01-18 09:47:22 +00:00
Ben Gras
f4c085d3cc Added pci files. 2006-01-17 10:49:30 +00:00
Ben Gras
0e9a5612d7 Throw away unused dirs, generated Makefiles.
Moved some calls back.
2006-01-17 10:36:53 +00:00
Ben Gras
591e943779 Makefiles of Joren's new library build system. 2006-01-16 15:47:30 +00:00
Ben Gras
34d445c0af Joren's new library make system (minus Makefiles) 2006-01-16 15:44:55 +00:00
Philip Homburg
f18faca855 Added pci_init1.c, pci_attr_r16.c, pci_attr_w8.c, pci_attr_w16.c,
and pci_rescan_bus.c
2006-01-12 14:37:37 +00:00
Ben Gras
50b06261b6 Implementation of truncate(), ftruncate() and the F_FREESP fcntl().
Implemented by changing write_map to accept a WMAP_FREE flag. In that
case, it doesn't update the datablock (creating indirect zones as
necessary) pointer, but it frees the datablock if present. Also it
frees the single and double indirect blocks if unused.

This makes the implementation of truncate_inode() simpler.
truncate_inode() now accepts a truncation length which makes
implementing truncate() and ftruncate() simple.

This also allowed implementing the F_FREESP fcntl().
2006-01-11 17:14:51 +00:00
Ben Gras
ffe192724e Added truncate() and ftruncate() library calls (no FS support yet).
Added ELOOP message to errlist.
2005-12-20 14:18:16 +00:00
Ben Gras
f6e5052597 seteuid() and setegid() 2005-12-13 09:48:29 +00:00
Philip Homburg
3dd0a97049 Stubs for accessing the PCI driver 2005-12-02 14:41:46 +00:00
Ben Gras
282e2f8e78 getloadavg() interface 2005-11-14 15:48:12 +00:00
Philip Homburg
233c092280 Resurrected sys_eniop. 2005-11-09 17:14:14 +00:00
Philip Homburg
6d02d10805 Added getprotobyname. 2005-11-09 15:42:38 +00:00
Philip Homburg
7394f38ed7 Added paramvalue to the library. 2005-11-08 13:59:27 +00:00
Ben Gras
c6412ae342 "forward compatible" hack for lstat() - make new binaries work on old
systems
2005-11-07 13:15:09 +00:00
Philip Homburg
ee80996c9a _sigsetjmp was missing. 2005-11-04 17:05:28 +00:00
Philip Homburg
36e1cb4436 sys_eniop was missing. 2005-11-04 17:03:49 +00:00
Ben Gras
94d370ca5f library fixes for symlink, readlink and lstat 2005-11-01 13:13:31 +00:00
Ben Gras
0604dc26a8 Giovanni's symlink patches. 2005-10-31 14:33:12 +00:00
Ben Gras
b94a639398 Giovanni's symlink (+syslog+flock) patches. 2005-10-31 14:31:05 +00:00
Ben Gras
3acb6bf1fe Giovanni's symlinks patches (libs) 2005-10-31 14:28:19 +00:00
Philip Homburg
29eed99c71 Added paning variable to help routing debug output. 2005-10-24 13:47:24 +00:00
Ben Gras
69a0586adf Changes to make gcc compile our libraries too (Joren) 2005-10-21 11:19:35 +00:00
Ben Gras
a19614a19f Included Makefiles for ack and gcc 2005-10-18 17:37:58 +00:00