Commit graph

689 commits

Author SHA1 Message Date
Ben Gras
01b152d6d9 kernel: add prototype for inkernel_disaster 2011-07-22 15:19:40 +02:00
Ben Gras
b984fa41df Revert "print kernel stacktrace for exceptions in kernel"
This reverts commit eff1369cab.

This was in a working branch and I only intended to commit
exception.c. But I committed the exact inverse. Sorry.
2011-07-22 15:01:44 +02:00
Erik van der Kouwe
dcc683b4ae Also compile the kernel as i586 (instead of i386) 2011-07-22 13:16:10 +02:00
Ben Gras
eff1369cab print kernel stacktrace for exceptions in kernel
fpu alignment check feature, checksum feature
2011-07-22 11:03:45 +00:00
Ben Gras
7ee78ffb82 kernel: improve exception debug printing
. fold 2 exception-in-kernel cases (pagefault and rest)
	  into 1
	. for exceptions that occur in kernel, don't just print
	  kernel stacktrace (typically that is just the exception
	  handler) but also the stacktrace of when the exception
	  happened
2011-07-22 10:57:08 +00:00
Arun Thomas
c356e9997e kernel: fix GCC warnings 2011-07-18 19:44:59 +02:00
Evgeniy Ivanov
5da4a0bd56 Move minimal libc from libsys into separate lib.
Now users can choose between libsys, libsys + libminc and
libsys + libc. E.g. PUFFS/FUSE servers need libsys + libc while
old servers can use libsys + libminc.
2011-07-09 22:32:38 +02:00
Arun Thomas
b956c8735e Fix GCC image building 2011-07-09 15:04:42 +02:00
Arun Thomas
daa14edc0d kernel: make clang-buildable 2011-06-28 15:34:19 +02:00
Arun Thomas
93ae43f577 boot: Add multiboot support
Not yet fully spec-compliant; work in progress
2011-06-24 17:21:51 +02:00
Ben Gras
e785381d4d introduce option to time assert()s
. remove a few asserts in the kernel and 64bi library
    that are not compatible with the timing code
  . change the TIME_BLOCKS code a little to work in-kernel
2011-06-24 16:00:42 +02:00
Gianluca Guida
cc17b27a2b Build NetBSD libc library in world in ELF mode.
3 sets of libraries are built now:
  . ack: all libraries that ack can compile (/usr/lib/i386/)
  . clang+elf: all libraries with minix headers (/usr/lib/)
  . clang+elf: all libraries with netbsd headers (/usr/netbsd/)

Once everything can be compiled with netbsd libraries and headers, the
/usr/netbsd hierarchy will be obsolete and its libraries compiled with
netbsd headers will be installed in /usr/lib, and its headers
in /usr/include. (i.e. minix libc and current minix headers set
will be gone.)

To use the NetBSD libc system (libraries + headers) before
it is the default libc, see:
   http://wiki.minix3.org/en/DevelopersGuide/UsingNetBSDCode
This wiki page also documents the maintenance of the patch
files of minix-specific changes to imported NetBSD code.

Changes in this commit:
  . libsys: Add NBSD compilation and create a safe NBSD-based libc.
  . Port rest of libraries (except libddekit) to new header system.
  . Enable compilation of libddekit with new headers.
  . Enable kernel compilation with new headers.
  . Enable drivers compilation with new headers.
  . Port legacy commands to new headers and libc.
  . Port servers to new headers.
  . Add <sys/sigcontext.h> in compat library.
  . Remove dependency file in tree.
  . Enable compilation of common/lib/libc/atomic in libsys
  . Do not generate RCSID strings in libc.
  . Temporarily disable zoneinfo as they are incompatible with NetBSD format
  . obj-nbsd for .gitignore
  . Procfs: use only integer arithmetic. (Antoine Leca)
  . Increase ramdisk size to create NBSD-based images.
  . Remove INCSYMLINKS handling hack.
  . Add nbsd_include/sys/exec_elf.h
  . Enable ELF compilation with NBSD libc.
  . Add 'make nbsdsrc' in tools to download reference NetBSD sources.
  . Automate minix-port.patch creation.
  . Avoid using fstavfs() as it is *extremely* slow and unneeded.
  . Set err() as PRIVATE to avoid name clash with libc.
  . [NBSD] servers/vm: remove compilation warnings.
  . u32 is not a long in NBSD headers.
  . UPDATING info on netbsd hierarchy
  . commands fixes for netbsd libc
2011-06-24 11:46:30 +02:00
Erik van der Kouwe
35b203fdb1 Initialize NMI watchdog only once, after enabling paging 2011-06-22 17:56:57 +02:00
Erik van der Kouwe
6e0f3b3bda Split off sys_umap_remote from sys_umap
sys_umap now supports only:
- looking up the physical address of a virtual address in the address space
  of the caller;
- looking up the physical address of a grant for which the caller is the
  grantee.

This is enough for nearly all umap users. The new sys_umap_remote supports
lookups in arbitrary address spaces and grants for arbitrary grantees.
2011-06-10 14:28:20 +00:00
Ben Gras
a77c2973b3 fix clang warnings -R in kernel/ and servers/ 2011-06-09 16:09:13 +02:00
Erik van der Kouwe
b08dff6011 Remove unused duplicate grant code in umap 2011-06-09 05:06:34 +00:00
Erik van der Kouwe
1e5f9dfa14 Make sys_umap on grants check grantee 2011-06-09 05:05:20 +00:00
Ben Gras
230b7775fe changes for detecting and building for clang/binutils elf
and minor fixes:
 . add ack/clean target to lib, 'unify' clean target
 . add includes as library dependency
 . mk: exclude warning options clang doesn't have in non-gcc
 . set -e in lib/*.sh build files
 . clang compile error circumvention (disable NOASSERTS for release builds)
2011-06-07 16:49:52 +02:00
Tomas Hruby
423be1545c Fix for SPROFILE == 0
- contributed by Antoine Leca
2011-05-25 09:42:11 +02:00
Tomas Hruby
bed9e48c12 APIC timer needs rearming before halting the cpu
- time stops if there is no activity and the timer expired before
  we halted the cpu

- restart_local_timer() checks if the timer has expired and if so it
  restarts it

- we do the same when switching back to userspace
2011-05-11 11:54:23 +02:00
Arun Thomas
350b60661a ELF multiboot support 2011-05-04 18:51:43 +02:00
Erik van der Kouwe
e969b5e11b Remote unused segctl kernel call 2011-04-26 23:28:23 +02:00
Ben Gras
2b09bfde6d kernel: fix logic error in the case vm_lookup fails 2011-04-20 10:17:08 +00:00
David van Moolenbroek
46cee00ad8 Kernel: try_async/try_one fixes
- skip processes that are not asynsending to the target
- do not clear whole asynsend table upon IPC permission error
- be more accepting when one table entry is bogus later on
2011-04-18 22:56:34 +00:00
Tomas Hruby
dc8ee363db SMP - INIT IPI deasserting fix
When deasserting the INIT IPI the DM field must be zero
2011-04-13 16:57:43 +00:00
David van Moolenbroek
c51cd5fe91 Server/driver protocols: no longer allow third-party copies.
Before safecopies, the IO_ENDPT and DL_ENDPT message fields were needed
to know which actual process to copy data from/to, as that process may
not always be the caller. Now that we have full safecopy support, these
fields have become useless for that purpose: the owner of the grant is
*always* the caller. Allowing the caller to supply another endpoint is
in fact dangerous, because the callee may then end up using a grant
from a third party. One could call this a variant of the confused
deputy problem.

From now on, safecopy calls should always use the caller's endpoint as
grant owner. This fully obsoletes the DL_ENDPT field in the
inet/ethernet protocol. IO_ENDPT has other uses besides identifying the
grant owner though. This patch renames IO_ENDPT to USER_ENDPT, not only
because that is a more fitting name (it should never be used for I/O
after all), but also in order to intentionally break any old system
source code outside the base system. If this patch breaks your code,
fixing it is fairly simple:

- DL_ENDPT should be replaced with m_source;
- IO_ENDPT should be replaced with m_source when used for safecopies;
- IO_ENDPT should be replaced with USER_ENDPT for any other use, e.g.
  when setting REP_ENDPT, matching requests in CANCEL calls, getting
  DEV_SELECT flags, and retrieving of the real user process's endpoint
  in DEV_OPEN.

The changes in this patch are binary backward compatible.
2011-04-11 17:35:05 +00:00
Thomas Veerman
7457cbe62f Enable sending a notification when sending of an asynchronous message was
completed (successfully or not). AMF_NOTIFY_ERR can be used if the sender 
only wishes to be notified in case of an error (e.g., EDEADSRCDST). A new
endpoint ASYNCM will be the sender of the notification.
2011-04-08 15:14:48 +00:00
Thomas Veerman
16e0e9370e Use a bitmap for pending asynchronous messages instead of a global flag.
That way it works similar to pending notifications.
2011-04-08 15:03:33 +00:00
Thomas Veerman
9db2311b22 Reduce the number of copies done by the kernel when handling retrieval and
delivery of asynchronous messages.
2011-04-08 14:53:55 +00:00
Tomas Hruby
8200e91073 Fixed smp compilation
- missing u64.h include after 64bit routines for gcc got inlined
2011-04-08 11:52:30 +00:00
Erik van der Kouwe
03a7d0e8ae Add cttybaud boot monitor variable to control speed of serial console (combine with ctty 0) 2011-03-16 12:25:10 +00:00
Arun Thomas
25a790a631 VM and kernel support for ELF 2011-02-26 23:00:55 +00:00
David van Moolenbroek
61ad5f9b94 Kernel: small comment fix (Bug#562, reported by Ryan Riley) 2011-02-25 16:46:30 +00:00
Ben Gras
c6e6aa8850 mark forked process as such in the kernel p_name
. helps debugging output; you can see the difference
    between parent and child easily (it's sometimes 
    confusing to see an expected endpoint number with
    an unexpected name, i.e. before exec())
  . when processes crash after fork and before exec, it's
    an instant hint that that's what's going on, instead of
    it being the parent (endpoint numbers don't usually convey
    this)
  . name returns to 'normal' after exec(), so *F isn't visible
    normally at all. (Except for for RS which forks apparently.)
2011-02-21 15:05:32 +00:00
Ben Gras
07bfb4f4e4 kernel - account for kernel cpu time (ipc, kcalls) in caller 2011-02-08 13:58:32 +00:00
Ben Gras
b2d1109737 kernel - change print*() functions for ipc to generic ipc hook functions.
- used to implement ipc stats tracking code
2011-02-08 13:54:33 +00:00
Gianluca Guida
fa59fc6eb4 Move shared headers in common/include
Headers that will be shared between old includes and NetBSD-like includes
are moved into common/include tree. They are still copied in /usr/include
in 'make includes', so compilation and programs aren't be affected.
2011-02-06 22:59:02 +00:00
Ben Gras
95702f970b kernel - doesn't do lock timings any more 2011-02-04 13:42:17 +00:00
Ben Gras
dc1cc91df1 <ansi.h> -> <minix/ansi.h> 2011-01-28 11:35:02 +00:00
Arun Thomas
6e86430130 Remove code for kernel task stack initialization
We no longer have kernel tasks, so this code is unnecessary
2011-01-27 12:18:33 +00:00
David van Moolenbroek
9c7dcbfec3 Kernel: fix clearing IPC references resulting in system crash 2011-01-18 10:18:08 +00:00
David van Moolenbroek
efca30b081 Kernel: fix notification delivery to non-ANY receivers 2011-01-07 17:04:43 +00:00
David van Moolenbroek
5d8d5e0c3a change bitchunk_t from 16-bit to 32-bit 2010-12-21 10:44:45 +00:00
Arun Thomas
361f377493 Fix multiboot for ACK-built images
Move the profiling buffer to the end of the data segment
2010-12-17 13:47:11 +00:00
David van Moolenbroek
b6f3b7e7f6 Kernel: statistical profiling fixes
- create name entries for forked processes as well;
- create name entries only for system processes.
2010-12-16 09:46:26 +00:00
David van Moolenbroek
a7285dfabc Kernel/RS: fix permission computation with 32+ system processes 2010-12-07 10:32:42 +00:00
Erik van der Kouwe
cbf7d8f735 Fix missing parenthesis (suggested by Antoine Leca) 2010-11-29 08:30:30 +00:00
Ben Gras
d87559f9b9 Fix for objdir feature of BSD make
contributed by Antoine Leca.
2010-11-24 13:44:42 +00:00
Arun Thomas
cfc1fe2ead kernel: Use LIBDIR var in Makefile
Instead of using a hard-coded path, use the LIBDIR variable so
the library path can be overridden.
2010-11-19 10:28:17 +00:00
Tomas Hruby
3ff6f21b51 kernel/debug.c includes u64.h (fix) 2010-11-18 15:12:01 +00:00