Commit graph

959 commits

Author SHA1 Message Date
Lionel Sambuc
b6ca6448bc fix declaration of minix_kerninfo_user 2014-07-28 17:05:15 +02:00
Lionel Sambuc
0472cd6e9d Move Assert to check MAGIC before actual use of the MBI record 2014-07-28 17:05:15 +02:00
Ben Gras
565f13088f make vfs & filesystems use failable copying
Change the kernel to add features to vircopy and safecopies so that
transparent copy fixing won't happen to avoid deadlocks, and such copies
fail with EFAULT.

Transparently making copying work from filesystems (as normally done by
the kernel & VM when copying fails because of missing/readonly memory)
is problematic as it can happen that, for file-mapped ranges, that that
same filesystem that is blocked on the copy request is needed to satisfy
the memory range, leading to deadlock. Dito for VFS itself, if done with
a blocking call.

This change makes the copying done from a filesystem fail in such cases
with EFAULT by VFS adding the CPF_TRY flag to the grants. If a FS call
fails with EFAULT, VFS will then request the range to be made available
to VM after the FS is unblocked, allowing it to be used to satisfy the
range if need be in another VFS thread.

Similarly, for datacopies that VFS itself does, it uses the failable
vircopy variant and callers use a wrapper that talk to VM if necessary
to get the copy to work.

	. kernel: add CPF_TRY flag to safecopies
	. kernel: only request writable ranges to VM for the
	  target buffer when copying fails
	. do copying in VFS TRY-first
	. some fixes in VM to build SANITYCHECK mode
	. add regression test for the cases where
	  - a FS system call needs memory mapped in a process that the
	    FS itself must map.
	  - such a range covers more than one file-mapped region.
	. add 'try' mode to vircopy, physcopy
	. add flags field to copy kernel call messages
	. if CP_FLAG_TRY is set, do not transparently try
	  to fix memory ranges
	. for use by VFS when accessing user buffers to avoid
	  deadlock
	. remove some obsolete backwards compatability assignments
        . VFS: let thread scheduling work for VM requests too
          Allows VFS to make calls to VM while suspending and resuming
          the currently running thread. Does currently not work for the
          main thread.
        . VM: add fix memory range call for use by VFS

Change-Id: I295794269cea51a3163519a9cfe5901301d90b32
2014-07-28 17:05:14 +02:00
Kees Jongenburger
e54d075f6f arm-refactor:remove dependency from memory.c to omap_timer.h.
Remove the dependency from memory.c to omap_timer.h.

Change-Id: I1f1a0e5436ac725e4b0db9d7d404194384794802
2014-07-28 17:05:09 +02:00
Kees Jongenburger
c97a47f54e arm-refactor:indent the omap bsp code.
Indent the omap bsd code using indent with the following settings
in indent.pro.
-bap -br -ce -ci4 -cli0 -d0 -di0 -i8 -ip4 -l79 -nbc -ncdb -ndj
-nfc1 -nlp -npcs -psl -sc -sob -fca -l79 -lc79

Change-Id: I09e7de9ad4b33f78bff96e3de4470f1c5ba854ce
2014-07-28 17:05:09 +02:00
Lionel Sambuc
84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00
David van Moolenbroek
4316052bbe Kernel: fix register corruption on signal delivery
This fixes problems with test79 and other programs.

Change-Id: I14de097a3b01114ec5dbd687ab5be9290ad13fc7
2014-03-03 20:47:07 +01:00
Ben Gras
7597f4a8fc <machine/signal.h>
. use netbsd sigframe, sigcontext struct
	. netbsd sigframe *contains* sigcontext; use that directly
	  in kernel sigsend
	. drop two fields from minix x86 stackframe.h (process context)
	  that were unused, retadr and st

use in-sigframe sigcontext

Change-Id: Ib59d699596dc3a78163dee59f19730482fdddf11
2014-03-03 20:47:07 +01:00
Ben Gras
be9fe09e97 x86 multiboot.h
Change-Id: I245564a98fb9e2572b88f8feb7411ad6800a543c
2014-03-03 20:47:05 +01:00
Ben Gras
f4f382d8c0 align ARM cpu.h importing & using armreg.h
Change-Id: I4793517d936f71b0bb7088fbfe67e73a65fafb11
2014-03-03 20:47:04 +01:00
Ben Gras
5cecdfcb3e <machine/mcontext.h>
Change-Id: I2ad64018f3f402e7ccc5c4dc037dd0a3fe56a929
2014-03-03 20:47:03 +01:00
Lionel Sambuc
94c9376df5 Removing SYS_SIG_* field macros.
Change-Id: Ib4f1b48268d4539ae6d4502ad647ecb73ea87f79
2014-03-03 20:47:00 +01:00
Lionel Sambuc
175d3e7eae Changing the message union to anonymous.
This allows us to write things like this:
  message m;
  m.m_notify.interrupts = new_value;

or
  message *mp;
  mp->m_notify.interrupts = new_value;

The shorthands macro have been adapted for the new scheme, and will be
kept as long as we have generic messages being used.

Change-Id: Icfd02b5f126892b1d5d2cebe8c8fb02b180000f7
2014-03-03 20:46:47 +01:00
Lionel Sambuc
55d9e9954b Extending time_t to 64bits.
Change-Id: Ia96b8bfba19cb8179a0237a7d2122d415c24d73f
2014-03-03 20:45:28 +01:00
Gerard
78da142dab Replaced common u64.h functions with operators.
Change-Id: I71b7b4879209eeff89ce5748d67102afebf871dc
2014-03-02 12:28:32 +01:00
Ben Gras
8ccb12bb5a use netbsd <sys/signal.h> and sigset_t
. create signals-related struct message type to store sigset_t
	  directly
	. create notify-specific message types, so the generic NOTIFY_ARG
	  doesn't exist anymore
	. various related test expansions, improvements, fixes
	. add a few error-checks to sigismember() calls
	. rename kernel call specific signals fields to SYS_*

Change-Id: I53c18999b5eaf0cfa0cb25f5330bee9e7ad2b478
2014-03-02 12:28:31 +01:00
Ben Gras
25719b5d92 bigger message
Change-Id: Ie770140c55799bdc3bb8f0ad6994d59938155a1a
2014-03-02 12:28:31 +01:00
Ben Gras
a06e2ab395 big <utmp.h>-inspired netbsd switch
import/switch of:
init, getty, reboot, halt, shutdown, wall, last

changes:
	. change reboot() call to netbsd prototype and args
	. allows pristine <utmp.h>
	. use clean <sys/reboot.h> instead of <minix/reboot.h>
	. implement TIOCSCTTY for use by getty so getty can get
	  controlling terminal from init's child(ren)
	. allow NULL envp for exec

Change-Id: I5ca02cb4230857140c08794bbfeba7df982c58a3
2014-03-01 09:05:02 +01:00
Lionel Sambuc
c3fc9df84a Adding ipc_ prefix to ipc primitives
* Also change _orig to _intr for clarity
 * Cleaned up {IPC,KER}VEC
 * Renamed _minix_kernel_info_struct to get_minix_kerninfo
 * Merged _senda.S into _ipc.S
 * Moved into separate files get_minix_kerninfo and _do_kernel_call
 * Adapted do_kernel_call to follow same _ convention as ipc functions
 * Drop patches in libc/net/send.c and libc/include/namespace.h

Change-Id: If4ea21ecb65435170d7d87de6c826328e84c18d0
2014-03-01 09:05:01 +01:00
David van Moolenbroek
24ec0d73b5 Clean up interface to PM and VFS
- introduce new call numbers, names, and field aliases;
- initialize request messages to zero for all ABI calls;
- format callnr.h in the same way as com.h;
- redo call tables in both servers;
- remove param.h namespace pollution in the servers;
- make brk(2) go to VM directly, rather than through PM;
- remove obsolete BRK, UTIME, and WAIT calls;
- clean up path copying routine in VFS;
- move remaining system calls from libminlib to libc;
- correct some errno-related mistakes in libc routines.

Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
2014-03-01 09:05:01 +01:00
David van Moolenbroek
80bd109cd3 libsys: various updates
- move system calls for use by services from libminlib into libsys;
- move srv_fork(2) and srv_kill(2) from RS and into libsys;
- replace getprocnr(2) with sef_self(3);
- rename previous getnprocnr(2) to getprocnr(2);
- clean up getepinfo(2);
- change all libsys calls that used _syscall to use _taskcall, so as
  to avoid going through errno to pass errors; this is already how
  most calls work anyway, and many of the calls previously using
  _syscall were already assumed to return the actual error;
- initialize request messages to zero, for future compatibility
  (note that this does not include PCI calls, which are in need of a
  much bigger overhaul, nor kernel calls);
- clean up more of dead DS code as a side effect.

Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb
2014-03-01 09:05:00 +01:00
David van Moolenbroek
f30a16b159 Remove support for MKTRACE, MKMCONTEXT, MKSTATECTL
Change-Id: Ib5fa53913ecb7b46d30d391dbdd3e8ef21eb2254
2014-03-01 09:04:59 +01:00
Thomas Cort
f5dbfe789e uname: normalize release and version
Most systems provide the full version number in the
'release' field and the kernel version in 'version'.
Minix used to split the full version number between
release and version which caused problems for pkgsrc
and other applications. This patch brings Minix's
uname in line with other systems such as NetBSD.
It also brings the getty banner in line with NetBSD.

Old Minix uname:
	sysname->Minix
	nodename->10.0.2.15
	release->3
	version->2.1
	machine->i686

New Minix uname:
	sysname->Minix
	nodename->10.0.2.15
	release->3.2.1
	version->Minix 3.2.1 (GENERIC)
	machine->i686

Change-Id: I966633dfdcf2f9485966bb0d0d042afc45bbeb7d
2014-03-01 09:04:55 +01:00
David van Moolenbroek
36ac0dbcf8 Take LOG out of the boot image
Change-Id: Id2629776b53aae46629b04a42c15cbbacac9b949
2014-03-01 09:04:55 +01:00
David van Moolenbroek
8fea5ab8bd Kernel: make SIGKMESS target process list dynamic
The set of processes to which a SIGKMESS signal is sent whenever new
diagnostics messages are added to the kernel's message buffer, is now
no longer hardcoded. Instead, processes can (un)register themselves
to receive such notifications, by means of sys_diagctl().

Change-Id: I9d6ac006a5d9bbfad2757587a068fc1ec3cc083e
2014-03-01 09:04:54 +01:00
David van Moolenbroek
de975579a4 Rename SYSCTL kernel call to DIAGCTL
Change-Id: I1b17373f01808d887dcbeab493838946fbef4ef6
2014-03-01 09:04:54 +01:00
Lionel Sambuc
9fab85c2de Replacing timer_t by netbsd's timer_t
* Renamed struct timer to struct minix_timer
 * Renamed timer_t to minix_timer_t
 * Ensured all the code uses the minix_timer_t typedef
 * Removed ifdef around _BSD_TIMER_T
 * Removed include/timers.h and merged it into include/minix/timers.h
 * Resolved prototype conflict by renaming kernel's (re)set_timer
   to (re)set_kernel_timer.

Change-Id: I56f0f30dfed96e1a0575d92492294cf9a06468a5
2014-03-01 09:04:54 +01:00
Lionel Sambuc
cfd3379bb1 Removing CSU patches
* Removed startup code patches in lib/csu regarding kernel to userland
   ABI.

 * Aligned stack layout on NetBSD stack layout.

 * Generate valid stack pointers instead of offsets by taking into account
   _minix_kerninfo->kinfo->user_sp.

 * Refactored stack generation, by moving part of execve in two
   functions {minix_stack_params(), minix_stack_fill()} and using them
   in execve(), rs and vm.

 * Changed load offset of rtld (ld.so) to:
      execi.args.stack_high - execi.args.stack_size - 0xa00000
   which is 10MB below the main executable stack.

Change-Id: I839daf3de43321cded44105634102d419cb36cec
2014-02-18 11:25:02 +01:00
Lionel Sambuc
744378194d Alignement on netbsd types, part 1
The following types are modified (old -> new):
 * _BSD_USECONDS_T_ int       -> unsigned int
 * __socklen_t      __int32_t -> __uint32_t
 * blksize_t        uint32_t  -> int32_t
 * rlim_t           uint32_t  -> uint64_t
On ARM:
 * _BSD_CLOCK_T_    int       -> unsigned int
On Intel:
 * _BSD_CLOCK_T_    int       -> unsigned long

bin/cat is also updated in order to fix warnings.

_BSD_TIMER_T_ has still to be aligned.

Change-Id: I2b4fda024125a19901120546c4e22e443ba5e9d7
2014-02-18 11:25:01 +01:00
Lionel Sambuc
e8e506f2a0 Adapt the type used for adjtime_delta
clock_t is currently a signed type, but in NetBSD this is not the
case. As we plan on aligning our types we have to change this as this
prevents negative delta from being correctly used.

Change-Id: I9bccdee2b41626b0262471dc1900de505a1991a7
2014-02-18 11:25:01 +01:00
Thomas Veerman
c1a31d53d9 stat.h: remove some big_ types
Change-Id: I84017db3d54edfb823cc52e02d0b07fccb003988
2014-02-18 11:25:01 +01:00
Kees Jongenburger
3df19a0671 arm-refactor:document ARM assembly code.
Change-Id: I8540a09cdaf45431ad163954ce41d36f4b72cad5
2014-02-12 13:47:49 +01:00
Kees Jongenburger
7e11828c6e arm:create SoC specific bsp directory and move code to there.
Created a new directory called bsp (board support package) to hold
board or system on chip specific code. The idea is the following.

Change-Id: Ica5886806940facae2fa5492fcc938b3c2b989be
2014-02-07 11:14:39 +01:00
Kees Jongenburger
502bc37a61 arm:indenting
Change-Id: I2f8f664fa4c66649db8981e58e6bb7a6f533df5a
2014-01-07 11:18:26 +01:00
Kees Jongenburger
aa94c9ed55 arm:switch to dynamic configuration for the kernel.
During startup machine.board_id is now determined. The kernel can now
at runtime determine how to configure itself and does so.

Change-Id: I4f615af9bfa5add219e618b911a51af127591d6a
2013-12-17 11:32:38 +01:00
Kees Jongenburger
3a2fb1ae8c arm:determine board_id using bootargs.board_name
On startup determine the board_id based on the board name
passed from u-boot. This code also export "board" for use
by  userland using sysenv.

Change-Id: I1064a49497c82b06f50d98650132bc0a7f543568
2013-12-17 11:32:38 +01:00
Kees Jongenburger
8c02dd7b2a arm:refactor replace cmdline.txt by bootargs passed to the kernel.
Put the boot arguments in uEnv.txt and not in cmdline.txt to allow
a more dynamic configuration of the system. We now also pass the
u-boot board_name parameter to the kernel.
2013-12-17 11:32:37 +01:00
Kees Jongenburger
7194772eae kernel:export board to userland.
Export the board variable to userland using sysenv. This
allows rc-scrips to perform device specific initialisation.

The board variable follows the following pattern

[ARCH]-[ARCHVARIANT]-[VENDOR]-[BOARD]-[BOARDVARIANT]

We currently we support the following boards:
X86-I586-GENERIC-GENERIC-GENERIC
ARM-ARMV7-TI-BBXM-GENERIC
ARM-ARMV7-TI-BB-WHITE
ARM-ARMV7-TI-BB-BLACK

Change-Id: I9e5f5f24f9a71cc9797cacb1aafb19499613f0be
2013-12-03 09:19:50 +01:00
Kees Jongenburger
4127817d7b arm:add board_id to machine to enable runtime configuration.
Modified the machine struct in include/minix/type.h to have an
additional field called board_id. This fields can be read out
by userland and drivers at runtime to enable automatic
configuration. The board_id field contains information about
the hardware architecture / board and such.

Change-Id: Ib12bc0d43fc9dbdb80ee0751c721ee516de1d2d6
2013-12-03 09:19:25 +01:00
Gerard
f1b0deacf3 Replaced add64, add64u and add64ul with operators.
Change-Id: Ia537f83e15cb686f1b81b34d73596f4298b0a924
2013-11-13 13:11:33 +00:00
David van Moolenbroek
9068050135 Kernel: correct a case of misleading indentation
Reported by Coverity.

Change-Id: If5d8a890052918f59fcc966759e4676fc4c894f0
2013-10-22 14:44:39 +00:00
Thomas Cort
4890bd9dce smp: build fixes for CONFIG_SMP=y
* bitmap.h: declare an explicit return type for bits_fill().
 * arch_smp.c: update include clock.h to kernel/clock.h

Change-Id: Idea373fa4eaa53f8ce4ac4fc3ad56f9f1ca86bc7
2013-10-12 11:51:55 -04:00
Thomas Cort
9f23acf410 kernel: spelling fixes
Change-Id: I73c759bdef98be35be77130895ae0ec497e1b954
2013-10-09 20:24:17 -04:00
Kees Jongenburger
ed45d98dac arm:ensure read_tsc_64 always returns a valid value.
Before this change overflowing the free running clock counter
between the time the timer was read and the time the overflow
check was done resulted in read_tsc_64 returning a to high value.

Change-Id: I1022f271213647f720477c4121d45f0c965456c6
2013-09-27 11:29:04 +02:00
Kees Jongenburger
d60d07f045 arm:caching enable barriers
Change-Id: I2c54a3c3c8f0502bf365901d771a989f7c556958
2013-09-26 12:11:29 +02:00
Kees Jongenburger
400e577fd5 arm:caching clean caches before setting up mappings.
Change-Id: I9ff1bb04ea9c0adeb76e5176526448d93bfe29f5
2013-09-26 12:11:29 +02:00
Kees Jongenburger
34b517ab12 arm:caching mark normal memory cacheable during identity mapping.
Change-Id: I7cd8da168744a3f32276803e99e8af0fea772574
2013-09-26 12:11:28 +02:00
Kees Jongenburger
2830a5af5c arm:perform copy operation using same cacheability.
When copying data from cacheable memory also use cacheable
attributes when creating temporary mappings.

Change-Id: I0e8380293fb4edaafba49f6262983ad86a5350c5
2013-09-26 11:54:36 +02:00
Kees Jongenburger
0d02dc9d54 arm:make the MMU fetch pagetable data through the caches.
Change-Id: Ibd7b66558c369d0c0792c02801562580d255fa1f
2013-09-26 11:54:36 +02:00
Kees Jongenburger
827378c57f arm:caching add methods to flush the data and unified cache
Change-Id: Idb066dd01afbdbccd684bcdcf4af88b4b1ef870a
2013-09-26 11:54:36 +02:00