Commit graph

1295 commits

Author SHA1 Message Date
Antoine Leca
cfc36e5fd3 Drop obsolete <minix/compiler.h> and <minix/crtso.h>
Change-Id: I05da32bd2bdf014b6fd5c39d6e808d3c73812dc0
2013-08-07 16:28:39 +00:00
Antoine Leca
7c62cdaaa7 PM: remove obsolete sys_getkinfo() 2013-08-06 11:46:46 +02:00
Antoine Leca
ed53e5e5a4 VM: added missing dependency 2013-08-06 11:46:33 +02:00
Antoine Leca
da82f9b2e8 <a.out.h>, MINIX style: remove as obsolete
Change-Id: Icc8b7210d60a93ac9cc4610d676dcba270756410
2013-08-06 11:43:35 +02:00
Thomas Cort
1b95bbbfe9 pm: notify readclock of reboot(RBT_POWEROFF)
Some ARM chips handle power-off with RTC alarms. PM notifies
readclock (the driver for RTCs) about the impending power-off.
If the power-off mechanism is an RTC alarm, readclock will
set the alarm. If not, there is no effect.

Change-Id: Iee00066def2a0f742cdf0dbde8e32b376edf1b78
2013-08-05 10:23:00 -04:00
David van Moolenbroek
c4f3c7d66f VFS: fix access bits in device reopen calls 2013-08-05 12:30:13 +02:00
Lionel Sambuc
0cdf705cc6 Enable optional GCC install and GCC improvements
-By adding MKGCC=yes and MKGCCCMDS=yes on the make commandline
   it is now possible to compile and install GCC on the system.

   Before doing this, if you are not using the build.sh script,
   you will need to call the fetch scripts in order to retrieve
   the sources of GCC and its dependencies.

 -Reduce difference with NetBSD share/mk

   Move Minix-specific parameters from bsd.gcc.mk to bsd.own.mk,
   which is anyway patched, so that bsd.gcc.mk is now aligned
   on the NetBSD version.

 -Clean libraries dependencies, compiles stdc++ only if gcc is
   also compiled (it is part of the gcc sources)

 -Correct minix.h header sequence, cleanup spec headers.

 -Fix cross-compilation from a 32bit host targeting MINIX/arm

Change-Id: I1b234af18eed4ab5675188244e931b2a2b7bd943
2013-07-12 14:22:03 +02:00
Xiaoguang Sun
64f10ee644 Implement getrusage
Implement getrusage.
These fields of struct rusage are not supported and always set to zero at this time
long ru_nswap;           /* swaps */
long ru_inblock;         /* block input operations */
long ru_oublock;         /* block output operations */
long ru_msgsnd;          /* messages sent */
long ru_msgrcv;          /* messages received */
long ru_nvcsw;           /* voluntary context switches */
long ru_nivcsw;          /* involuntary context switches */

test75.c is the unit test for this new function

Change-Id: I3f1eb69de1fce90d087d76773b09021fc6106539
2013-07-01 23:00:47 +02:00
Ben Gras
cdf2f55a90 kernel, arm ucontext: ARM DBG=-g run fixes
kernel:
	. modules can be as big as the space (8MB) between them
	  instead of 4MB; memory is slightly bigger with DBG=-g

arm ucontext:
	. r4 is clobbered by the restore function, as it's
	  used as a scratch register, causing problems for the
	  DBG=-g build
	. r1-r3 are safe for scratch registers, as they are
	  caller-save, so use r3 instead; and don't bother
	  restoring r1-r3, but preserve r4

vfs:
	. improve TLL pointer sanity check a bit

Change-Id: I0e3cfc367fdc14477e40d04b5e044f288ca4cc7d
2013-06-24 16:57:30 +02:00
Ben Gras
456359aa72 retire 64-bit conversion functions
Change-Id: Ib6b81403f877c363a286c654e0524fa1cb781b80
2013-06-24 16:50:57 +02:00
Ben Gras
8f2749cca8 vfs: patch for unpause()/revive() race condition
. unpause() and revive() can race - revive() can run during
	  a device i/o unblock, causing two sendnb()s to occur, and the
	  2nd one to fail
	. this can easily happen when a process is blocking on tty and
	  is then killed by a signal - tty cancels the i/o and then
	  kills the process by a signal

Change-Id: Ia319acaedfa336b78c030a2c4af7246959bdcf87
2013-06-14 23:58:43 +02:00
Kees Jongenburger
a2fcba659c arm:remove pre 1:1 mapping workarounds.
Change-Id: I5a690cf5a561cdca9b9c1f031402f80fd203c92d
2013-06-12 16:42:20 +02:00
Ben Gras
8d676bd0a8 is: leave newline for stacktrace for SF9 dump
. otherwise the standard console screen can't hold them

Change-Id: Iea2c047b715bc456747aace8957d8c5eeb94d0fa
2013-06-12 07:04:53 +00:00
Ben Gras
9e43052b21 inline sendnb should not call send vector
. also vfs has to reply to a vm call - so use asynsend for that

Change-Id: I30ac1e591191dea5c99e25b03151a4415d1151b0
2013-06-12 07:04:53 +00:00
Ben Gras
63306d0ad5 init: handle getty string of "" (default)
. the default entry for disabled ttys for getty
	  in /etc/ttys is "", but init crashed on handling that
	  string.

Change-Id: Ib7cd6c6869e338f47df0aa5abed36f15eda4f6ff
2013-06-12 07:04:53 +00:00
Ben Gras
9178749e13 libc syslog, syslogd, logger, uds fixes
changes necessary for libc syslog() using a unix domain socket.

	. libc syslog: don't use send() connect() for unix
	  datagram sockets, minix wants write() and ioctl()
	. syslogd: listen on _PATH_LOG unix domain socket
	. logger: warnings fixes
	. pfs: make uds dgram socket type nonblocking so
	  syslog() doesn't block
	. vfs: add sanity check for empty fd in unpause()

Change-Id: Ied136c6fe0cc288f5a53478f1eebccc1ab1f39fb
2013-06-12 07:04:52 +00:00
Ben Gras
d579bb21f4 vm: bugfix: cover vfs_request-in-callback case
Change-Id: I16fccd9938fe8edab83c6c2e327d27d65ff20224
2013-06-05 15:02:56 +00:00
Ben Gras
4f3b015903 fix some warnings
Change-Id: I1f3fa582d8e3ddb3c981784dddb13e740102f4f3
2013-05-31 20:57:39 +00:00
Ben Gras
1cc6f4295d vm: handle disappearing process case
Change-Id: Id96759883e4cdb175c79dcef7ef5ff254612101f
2013-05-31 17:31:55 +00:00
Ben Gras
49b9165251 vm: mmap support
. test74 for mmap functionality
	. vm: add a mem_file memory type that specifies an mmap()ped
	  memory range, backed by a file
	. add fdref, an object that keeps track of FD references within
	  VM per process and so knows how to de-duplicate the use of FD's
	  by various mmap()ped ranges; there can be many more than there can
	  be FD's
	. turned off for now, enable with 'filemap=1' as boot option

Change-Id: I640b1126cdaa522a0560301cf6732b7661555672
2013-05-31 15:42:01 +00:00
Ben Gras
f369157d95 pfs, vfs: increase various limits
. pipes in pfs
	. vnodes in vfs
	. thread stack sizes in vfs

Change-Id: Ib27dedd42f57a90821a5b950cd7ea25cb2b42f3f
2013-05-31 15:42:00 +00:00
Ben Gras
33a7ac7557 vfs: mmap support
. libc: add vfs_mmap, a way for vfs to initiate mmap()s.
	  This is a good special case to have as vfs is a slightly
	  different client from regular user processes. It doesn't do it
	  for itself, and has the dev & inode info already so the callback
	  to VFS for the lookup isn't necessary. So it has different info
	  to have to give to VM.
	. libc: also add minix_mmap64() that accepts a 64-bit offset, even
	  though our off_t is still 32 bit now.
	. On exec() time, try to mmap() in the executable if available.
	  (It is not yet available in this commit.)
	. To support mmap(), add do_vm_call that allows VM to lookup
	  (to ino+dev), do i/o from and close FD's on behalf of other
	  processes.

Change-Id: I831551e45a6781c74313c450eb9c967a68505932
2013-05-31 15:42:00 +00:00
Ben Gras
924eb29565 fix inet warnings
Change-Id: Ia6e761d2c649f03a49b2646387f859d6c2a646cb
2013-05-31 14:30:52 +00:00
Ben Gras
2d2a1a077d panic: declare as printf-style-checked
. and related fixes

Change-Id: I5131ac57dc53d8aec8d421a34c5ceea383404d7a
2013-05-31 13:35:25 +00:00
Ben Gras
5507a12d7c vfs: who_p fix
Change-Id: I0e04b6460907f5e67f6c90b2038d296d66b9a414
2013-05-31 09:28:38 +00:00
Ben Gras
4fb3945025 vm: a bit more informative about failed pagefaults
Change-Id: I2b72dfb9291670cb837dfdb279f519892575d4a6
2013-05-29 15:25:45 +00:00
Lionel Sambuc
f0d23d912d servers/pm: Fix EFAULT check for SETGROUPS
The previous test would return EFAULT as soon as the group pointer
was NULL, while it is sensible when the count is also 0.

In that case, the SETGROUP syscall is expected to clear all the
group entries as the new set is empty.

Change-Id: I07b7e1d1f023a52e3035d53f7d9b42b660e039e8
2013-05-28 21:07:04 +02:00
Kees Jongenburger
ffea6706f0 arm:also use 1MB sections for mapping AM335X device memory.
Change-Id: Idc0b285fcbabe8ec4c0be9a600b6a720c0bd3ffc
2013-05-24 15:47:04 +02:00
Kees Jongenburger
1e1ff96aea arm:vm caching fix.
Improve reliability by using write trough cache.
2013-05-16 20:39:20 +02:00
Kees Jongenburger
a3f6529ee2 arm:vm header cleanup. 2013-05-16 20:39:19 +02:00
Ben Gras
4ebb889e7a libsys: panic hook feature
. vfs: use it to dump threads stacks

Change-Id: I7ae3521fc153a407505f11049629e6d4142cf7c7
2013-05-07 17:18:40 +00:00
Ben Gras
85fd078707 tty: non-overlapping code for FKEY_CONTROL
. to decode it in kernel/debug.c

Change-Id: I0d2cc66e87d97a362fa549b364b4d1b0e1225e66
2013-05-01 21:36:43 +00:00
Kees Jongenburger
e6bac75a8b ARM:Rename ARM_BIG_PAGE to ARM_SECTION.
The natural term to use when talking about MINIX big pages on ARM
is SECTION. A section is a level 1 page table entry pointing to
a 1MB area.

Change-Id: I9bd27ca99bc772126c31c27a537b1415db20c4a6
2013-04-29 11:42:26 +02:00
Ben Gras
f497d9b9c4 ext2: annotate cache blocks with inode metadata
. allows mmap() to work on it

Change-Id: I33af8b86ebb408d971478d00ed2caacf15afc7a5
2013-04-26 15:39:07 +00:00
Ben Gras
f0cc010614 libminixfs, mfs, ext2: may re-evaluate cache size
libminixfs may now be informed of changes to the block usage on the
filesystem. if the net change becomes big enough, libminixfs may
resize the cache based on the new usage.

	. update the 2 FSes to provide this information to libminixfs

Change-Id: I158815a11da801fd5572a8de89c9e6c039b82650
2013-04-26 13:57:08 +00:00
Ben Gras
44f34e53d5 VFS: Implement REQ_BPEEK.
This commit introduces a new request type called REQ_BPEEK. It
requests minor device blocks from the FS.  Analogously to REQ_PEEK,
it requests the filesystem to get the requested blocks into its
cache, without actually copying the result anywhere.

Change-Id: If1d06645b0e17553a64b3167091e9d12efeb3d6f
2013-04-24 10:18:16 +00:00
Ben Gras
0cfff08e56 libexec: mmap support, prealloc variants
In libexec, split the memory allocation method into cleared and
non-cleared. Cleared gives zeroed memory, non-cleared gives 'junk'
memory (that will be overwritten anyway, and so needn't be cleared)
that is faster to get.

Also introduce the 'memmap' method that can be used, if available,
to map code and data from executables into a process using the
third-party mmap() mode.

Change-Id: I26694fd3c21deb8b97e01ed675dfc14719b0672b
2013-04-24 10:18:16 +00:00
Ben Gras
6fa5ce74ce MFS: annotate cache blocks with inode metadata
. use lmfs_* cache functions that provide the cache with inode
	  metadata whenever applicable, i.e. tell the cache code which
	  inode number and in-inode offset a particular cache block
	  corresponds to.
	. needed for mmap implementation

Change-Id: Ic7d3c0c49029880f86a31368278722e907bc2896
2013-04-24 10:18:16 +00:00
Ben Gras
49eb1f4806 vm: new secondary cache code
Primary purpose of change: to support the mmap implementation, VM must
know both (a) about some block metadata for FS cache blocks, i.e.
inode numbers and inode offsets where applicable; and (b) know about
*all* cache blocks, i.e.  also of the FS primary caches and not just
the blocks that spill into the secondary one. This changes the
interface and VM data structures.

This change is only for the interface (libminixfs) and VM data
structures; the filesystem code is unmodified, so although the
secondary cache will be used as normal, blocks will not be annotated
with inode information until the FS is modified to provide this
information. Until it is modified, mmap of files will fail gracefully
on such filesystems.

This is indicated to VFS/VM by returning ENOSYS for REQ_PEEK.

Change-Id: I1d2df6c485e6c5e89eb28d9055076cc02629594e
2013-04-24 10:18:16 +00:00
Ben Gras
7421728360 VM: memtype fix
Memory types in VM are described by methods. Each mapped region has
a type, and all pages instantiated get that type on creation.
Individual page types has to be able to change though. This commit
changes the code to use the memory types of the individual pages,
where appropriate, instead of just the higher-level region, in case
it has changed. This is needed to e.g. support future copy-on-write
MAP_PRIVATE mmap modes.

Change-Id: I5523db14ac036ec774a54392fb67f9acb8725731
2013-04-24 10:18:15 +00:00
Ben Gras
9e88c40e40 VM: 64-bit mmap()
Some (backwards-compatible) changes in mmap() call message fields
that allow for a 64-bit offset. minix_mmap() takes an off_t and
minix_mmap64() takes a u64_t. Some mmap() work in VM goes into a
separate function, using the new fields, so that that can be re-used
when files are to be mapped (future commit).

Change-Id: Ifb77a90b593dd3c33cf81b396068e4da1ec5fb1c
2013-04-24 10:18:15 +00:00
Ben Gras
75c5fe4c26 filesystems: return ENOSYS for REQ_PEEK
The filesystems already implement REQ_PEEK, but do not fully
use the new filesystem cache code yet. (Because it isn't committed
yet..) REQ_PEEK should be disabled for them until they do.

This indicates to VFS that they are not annotating their cache
blocks (in VM) with inode number/offset info, and therefore mmap()
shouldn't succeed on any of their files. (Most importantly exec()
won't fallback elegantly otherwise.)

Change-Id: Ic57ee422864b4bbc031eadba32973270907b02fd
2013-04-24 10:18:10 +00:00
Ben Gras
adf2032bc0 vm: remove secondary cache code
This commit removes the secondary cache code implementation from
VM and its usage from libminixfs. It is to be replaced by a new
implementation.

Change-Id: I8fa3af06330e7604c7e0dd4cbe39d3ce353a05b1
2013-04-24 10:18:10 +00:00
Xiaoguang Sun
20e6c9329f Change function prototype to use endpoint_t instead of int 2013-04-23 17:15:15 +02:00
Ben Gras
32a4e0d84d many new tests
. test70: regression test for m_out vfs race condition

The following tests use testcache.c to generate test i/o
patterns, generate random write data and verify the reads.

	. test71: blackbox full-stack test of FS operation, testing
	  using the regular VFS interface crazy i/o patterns
	  with various working set sizes, triggering only
	  primary cache, also secondary cache, and finally
	  disk i/o and verifying contents all the time
	. test72: unit test of libminixfs, implementing
	  functions it needs from -lsys and -lblockdriver
	  and the client in order to simulate a working
	  cache client and backend environment.
	. test73: blackbox test of secondary vm cache in isolation

Change-Id: I1287e9753182b8719e634917ad158e3c1e079ceb
2013-04-19 16:21:48 +00:00
Ben Gras
072d916c1c vfs: fix null deref, pfs: add fchmod()
. vfs read_only() assumes vnode->v_vmnt is non-NULL, but it can
	  be NULL sometimes
	. e.g. fchmod() on UDS triggered NULL deref; add a check and
	  add REQ_CHMOD to pfs so unix domain sockets can be fchmod()ded
	. add to test56

Change-Id: I83c840f101b647516897cc99fcf472116d762012
2013-04-19 17:06:56 +02:00
Ben Gras
cef94e096e vfs: make m_out non-global
m_out is shared between threads as the reply message, and it can happen
results get overwritten by another thread before the reply is sent. This
change

	. makes m_out local to the message handling function,
	  declared on the stack of the caller
	. forces callers of reply() to give it a message, or
	  declare the reply message has no significant fields except
	  for the return code by calling replycode()

Change-Id: Id06300083a63c72c00f34f86a5c7d96e4bbdf9f6
2013-04-12 23:40:38 +00:00
Antoine Leca
9131e98a7d utimens(2) system call
Variant of utime(2) with struct timespec (with ns precision)
instead of time_t values; also allows for tv_nsec members
the values UTIME_NOW (force update to current time) or
UTIME_OMIT (allow to set either atim or mtim independently.)

Provides a superset of utimes(2), futimes(2), lutimes(2),
and futimens(2).
Provides the same subset of utimensat(2) as does NetBSD 6.
Also import utimens() and lutimeNS() from NetBSD-current.
2013-04-12 18:55:39 +00:00
Antoine Leca
4069cef7f9 Subsecond timestamps support for FS
Expand REQ_UTIME to include tv_nsec members
(as in struct timespec) in addition to tv_sec==time_t

Designed with help from David van Moolenbroek
2013-04-12 11:11:59 +02:00
Michael W. Bombardieri
a806c5feb1 make minix lwip make explicit use of 'int'
makes lwip use "unsigned int" instead of "unsigned" since this is
more obvious (i.e. type is not implied).

Change-Id: I852eb80484516e1235241d55be3e15174fa24109
2013-04-11 22:37:30 +02:00