Commit graph

315 commits

Author SHA1 Message Date
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
da42185e1c Removed verbose statements from vfs and mfs 2006-12-22 11:54:42 +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
bafc45a309 First cut at 64-bit file offsets in block devices for mkfs/fsck. 2006-11-27 14:21:43 +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
64dbdd855d obsolete server. 2006-11-01 16:53:45 +00:00
Ben Gras
86303b3024 Explicit conversion from O_ACCMODE to minix [RW]_BIT is clearer
and catches bogus values (such as 3).
2006-11-01 14:17:47 +00:00
Philip Homburg
0c1d433f60 rs changes (also use driver configurations in the image ramdisk) 2006-10-31 13:35:04 +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
7c0fda0932 Include kernel/priv.h for rs/manager.h 2006-10-25 13:07:58 +00:00
Ben Gras
1e656b349d . processes stay ZOMBIE, even after wait(), to avoid wrongly seeing them
as living processes  before they are cleaned up (fixes
  wait()/waitpid() hanging forever on previously-ZOMBIE processes)

. stop processes from running using sys_nice() with PRIO_STOP
  when a handled signal is delivered, before computing 
  stack locations for sys_sigsend(). (fixes race condition
  when runnable processes get signals, and e.g. get scheduled
  before FS sends a reply to unpause(), which can make the
  signal stack location wrong.)
2006-10-25 11:29:43 +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
1ce2f75627 Additional ptrace commands for fault injection. 2006-10-20 14:14:08 +00:00
Ben Gras
cbfa0f4fb8 Change select() so that only as many words as necessary for the 'nfds'
argument from the fd bitmasks are copied from and back to userspace. This
solves an ABI dependency on OPEN_MAX. If nfds is too big for the current
OPEN_MAX, select() fails (but that's relatively easy to fix by 'just'
recompiling the system and not the application binaries), but if it's
smaller, binaries keep working.
2006-10-04 13:28:38 +00:00
Philip Homburg
66f9a5f508 Do not abort/panic when an ethernet driver does something unexpected. 2006-08-28 12:59:36 +00:00
Ben Gras
b888922d62 Added 'service run' to run a service without restart. 2006-08-15 15:54:51 +00:00
Ben Gras
4539e54d8b . fix for wild store at startup time by calling dev_io without fp
initialized
 . fix for writing exactly PIPE_SIZE to a pipe with O_NONBLOCK blocking
   anyway because of incomplete logic in pipe_check
2006-08-10 11:51:11 +00:00
Ben Gras
c3c08d252c report driver source of grant mismatch 2006-08-04 13:31:06 +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
Philip Homburg
baa3ac5853 Fix for 'cleanup: not idle: 2313' bug. 2006-07-25 14:13:09 +00:00
Ben Gras
82173212ee Introduction of a 'big' ioctl, with more bits (20) reserved for encoding the
size field. The TIOCSFON ioctl size (8192) didn't get encoded properly,
as there weren't enough bits for it (12) in the regular format.

The new format has only one type field, and an extra flag (_IOC_BIG)
turned on. FS checks for this flag and uses the alternative decoding
of the ioctl codes to determine the size when doing grants.

This unbreaks loadfont, although that still uses a phys copy in tty.
2006-07-25 09:41:40 +00:00
Philip Homburg
61337d5f7b Allow holes in executables. 2006-07-24 13:07:25 +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
c06bc3ead8 Left consistency checks enabled in INET in the previous commit. 2006-07-13 13:25:55 +00:00
Philip Homburg
04b478f177 More stack for tcpd.
Safecopies renders the NWIOQUERYPARAM ioctl useless. This functionality
is now replaced with /dev/ipstat. Write the request to the device and
read the answer in one read request.
2006-07-13 13:19:48 +00:00
Philip Homburg
9939089dea Safecopy support for INET. 2006-07-10 12:55:33 +00:00
Philip Homburg
7ce17fe655 Support for SI_CALL_STATS (counting systemcalls). 2006-07-10 12:44:43 +00:00
Ben Gras
1561067ee4 Grant system dynamic-only. 2006-06-30 14:40:29 +00:00
Ben Gras
b654c02f55 Give pm its own brk() so malloc() works in pm. pm needs more stack for this. 2006-06-30 14:36:11 +00:00
Ben Gras
b5179d7025 Split do_brk in a stub and a function that does the real work, so that
the real work can be called from elsewhere too. Specifically, to allow PM
its own brk().
2006-06-30 14:35:38 +00:00
Ben Gras
0323892f71 3rd fix for improper behaviour on crashing driver with safe_io_conversion 2006-06-29 14:24:07 +00:00
Ben Gras
bfca7d68ba Fix another bug related to trying i/o more than once 2006-06-28 12:20:30 +00:00
Ben Gras
46646a49a8 Don't print cloexec 2006-06-28 10:04:32 +00:00
Ben Gras
f9fb0ff546 Fix bug where safe conversion doesn't happen after 1st time in loop 2006-06-28 10:03:18 +00:00
Ben Gras
bd535a120b . satisfy some gcc warnings (uninitialized/unused variables)
. change cloexec mask from long to fd_set to remove 32 fd's per
   process restriction (from cloexec at least)
2006-06-27 16:47:35 +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
Philip Homburg
2f50f92eb3 Move inet to safe copies. 2006-06-26 16:03:35 +00:00
Philip Homburg
de07a562d1 Vectored safe copies for inet. 2006-06-26 14:20:11 +00:00
Philip Homburg
14c9743ecf First cut at safe copies for inet. Breaks tcpstat. 2006-06-26 11:17:19 +00:00
Philip Homburg
8dfac43a75 Print ipc_to in hex. Also print the 'system' call mask. 2006-06-23 13:27:03 +00:00
Ben Gras
82855e9cf5 . leave out dead code from device.c
. don't loop doing a receive() after sendrec() - chance of recovering is not
  high, and can lead to receive()ing a notify() (which can't happen in sendrec()),
  which is terrible
. return status from device when DEV_CANCEL is done on a signal; hardcode EAGAIN to
  become EINTR though
2006-06-23 11:51:56 +00:00
Ben Gras
7b6a1e5f59 More space for rs 2006-06-20 10:59:45 +00:00
Ben Gras
0d39b17655 Changed order of -lsys and -lsysutil for printf() 2006-06-20 10:50:29 +00:00
Ben Gras
705f1039d9 order changed for printf() 2006-06-20 10:47:25 +00:00
Ben Gras
150c964b49 Fix for losing REVIVE 2006-06-20 10:12:30 +00:00
Ben Gras
2384a85296 FS support for grant-based i/o.
For character device i/o, FS does a so-called 'magic' grant to let the
driver copy from or to user space. As this is done in FS address space,
the driver is told to do this in FS address space. The redirection to
the right user process then happens at copy-time in the kernel, using the
FS grant table. This also happens for DEV_READ and DEV_WRITE on block
devices.

For other block device i/o, which happens from/to FS buffers, FS does
a 'direct' grant to its own address space for the driver.

After the i/o returns, this access has to be K-I-L-L-E-D, revoked.
Sometimes this is after a SUSPEND and DEV_REVIVE, in which case the
revoking happens in pipe.c.

This conversion happens in safe_io_conversion() in device.c, called
by dev_io and dev_bio.

FS has to pre-allocate its own space for these grant tables. This happens
in main.c.
2006-06-20 10:12:09 +00:00
Ben Gras
54f1e6d3d4 Use endpoint_t 2006-06-20 10:04:33 +00:00
Ben Gras
7a76a7a495 Rename protected to prot
Also print size of grant table known in system
2006-06-20 10:03:48 +00:00
Philip Homburg
221e731e45 Wake up writer when selecting for read on an empty pipe.
Set fp_revived to NOT_REVIVING when decrementing reviving.
2006-06-14 13:17:41 +00:00