Commit graph

716 commits

Author SHA1 Message Date
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
Kees van Reeuwijk
c33102ea6b Miscellaneous code cleanup. 2010-03-22 20:43:06 +00:00
Erik van der Kouwe
b42c66ed10 this patch adds access to the debug breakpoints to
the kernel. They are not used atm, but having them in trunk allows them
to be easily used when needed. To set a breakpoint that triggers when
the variable foo is written to (the most common use case), one calls:

breakpoint_set(vir2phys((vir_bytes) &foo), 0,
  BREAKPOINT_FLAG_MODE_GLOBAL |
  BREAKPOINT_FLAG_RW_WRITE |
  BREAKPOINT_FLAG_LEN_4);

It can later be disabled using:

breakpoint_set(vir2phys((vir_bytes) &foo), 0,
  BREAKPOINT_FLAG_MODE_OFF);

There are some limitations:

- There are at most four breakpoints (hardware limit); the index of the
  breakpoint (0-3) is specified as the second parameter of
  breakpoint_set.

- The breakpoint exception in the kernel is not handled and causes a
  panic; it would be reasonably easy to change this by inspecing DR6,
  printing a message, disabling the breakpoint and continuing. However,
  in my experience even just a panic can be very useful.

- Breakpoints can be set only in the part of the address space that is
  in every page table. It is useful for the kernel, but to use this for
  user processes would require saving and restoring the debug registers
  as part of the context switch. Although the CPU provides support for
  local breakpoints (I implemened this as BREAKPOINT_FLAG_LOCAL) they
  only work if task switching is used.
2010-03-19 19:15:20 +00:00
Ben Gras
e595328986 remove 3 awk files - don't have generated files in svn. 2010-03-18 14:15:48 +00:00
Kees van Reeuwijk
4683d6b713 Let awk.old install its awk as /usr/bin/awk.old.
Add one-true-awk as the new awk that installs to /usr/bin/awk.
2010-03-17 16:16:52 +00:00
Kees van Reeuwijk
365495b530 Moved current awk sources to awk.old. 2010-03-17 16:11:48 +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
Kees van Reeuwijk
3efbb8f133 Let the commands/simple/tr.c understand about '\t', '\r', and '\n'. 2010-03-12 09:58:44 +00:00
Kees van Reeuwijk
cf95efbad1 Prevent the use of an unitialized variable for block size in CRC calculation. 2010-03-09 16:21:41 +00:00
Arun Thomas
4206784d82 Flex: Fix install(1) invocation in build 2010-03-09 09:43:53 +00:00
Arun Thomas
1f9ce647cf Move archtypes.h, fpu.h, and stackframe.h
Move archtypes.h to include/ dir, since several servers require it. Move
fpu.h and stackframe.h to arch-specific header directory. Make source
files and makefiles aware of the new header locations.
2010-03-09 09:41:14 +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
72fc754948 new feature for top - display chain of blocked processes for every
blocked process.
2010-03-03 15:45:43 +00:00
Arun Thomas
cbd276e4ce Convert library asm files to GAS syntax 2010-03-03 14:27:30 +00:00
Arun Thomas
4cb358d999 Replace Minix tar with pax's tar 2010-02-24 11:58:10 +00:00
Ben Gras
c460974814 remove subdirs that aren't built.
ftp is superseded by other dirs, i86 is not used, httpd* is superseded
by packages, sed is superseded by simple/sed.c.
2010-02-19 16:31:43 +00:00
Ben Gras
8c88a0219b add swifi to the build/install. 2010-02-19 16:16:28 +00:00
Ben Gras
d3b3c9d36d fix some warning in swifi, make it installable 2010-02-19 16:15:25 +00:00
Kees van Reeuwijk
1ba0936619 Fix some uses of uninitialized variables. 2010-02-19 10:41:02 +00:00
Erik van der Kouwe
5af2471a9a Throw out obsolete Atari, Macintosh and Sun code to un-break packages;
credits to Sernin van de Krol's zip-2.31 patch for showing this problem
2010-02-16 19:19:42 +00:00
Arun Thomas
b706112487 Incorporate bsdmake into buildsystem and reorganize libs 2010-02-16 14:41:33 +00:00
Tomas Hruby
b5e7af96c9 top update
- it works with the new TSC based time accounting
2010-02-10 15:38:27 +00:00
Tomas Hruby
c5001b0a5f gas2ack fix
- fixed handling of segment overrides for instruction that may use two
  of them in the long format, e.g. movs
2010-02-05 13:53:10 +00:00
Arun Thomas
4b02d003db Import NetBSD's make 2010-02-04 16:52:54 +00:00
Ben Gras
d6598cc7cd fix for asmconv - stop translating after .sect .end. 2010-02-03 16:03:00 +00:00
Ben Gras
0985235ba0 forget difference between big and small commands - obsolete with vm. 2010-02-03 14:16:51 +00:00
Erik van der Kouwe
7c9fe576a8 Throw out getpack, replace printenv with a link to env 2010-02-03 13:51:26 +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
David van Moolenbroek
c7f1b547cb Statistical profiling fixes:
- PM: get rid of umap warning
- sprofalyze.pl: update with recently added servers and drivers
- sprofalyze.pl: properly truncate process names for sample matching
2010-02-03 12:27:52 +00:00
Erik van der Kouwe
c107dbe1d0 Man-pages on mkdep, cdprobe, loadramdisk and newroot; thanks to Antoine Leca 2010-02-02 15:10:00 +00:00
Ben Gras
a36a3766b0 ignore .svn dirs when making binary packages 2010-01-27 16:20:28 +00:00
Erik van der Kouwe
d8b8e10ba4 Add notrunc conversion for dd tool 2010-01-27 07:48:06 +00:00
Erik van der Kouwe
3e583f4c04 Add -p flag for install tool 2010-01-27 07:47:29 +00:00
Ben Gras
76f8132545 dec21140A ethernet driver for virtualpc, contributed by nicolas tittley. 2010-01-26 10:20:18 +00:00
Erik van der Kouwe
58024f9eb0 Add character classes for tr 2010-01-25 18:14:54 +00:00
Ben Gras
515d6ebc9a correct opcode of FNSTSW (hopefully fixes minix under virtualpc) 2010-01-25 16:25:20 +00:00
Erik van der Kouwe
0bc2aad4af Fix parameter parsing in cut 2010-01-21 10:16:05 +00:00
Erik van der Kouwe
a5a2073680 create the getaddrinfo and getnameinfo library functions and friends 2010-01-21 06:38:17 +00:00
Ben Gras
daca9de450 Fix to make making a bootable cd possible again.
ow that the image has grown beyond the 1.44M that fits on a floppy.
(previously, the floppy emulation mode was used for cd's.)

the boot cd now uses 'no emulation mode,' where an image is provided on
the cd that is loaded and executed directly. this is the boot monitor.

in order to make this work (the entry point is the same as where the
image is loaded, and the boot monitor needs its a.out header too) and
keep compatability with the same code being used for regular booting, i
prepended 16 bytes that jumps over its header so execution can start
there.

to be able to read the CD (mostly in order to read the boot image),
boot has to use the already present 'extended read' call, but address
the CD using 2k sectors.
2010-01-18 14:10:04 +00:00
Thomas Veerman
cc86693102 - Make packman unmount the packages cd if it was mounted.
- Manpages for packman and packit.
2010-01-13 15:52:55 +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
49ec221a92 Fix netconf alignment now that there is a number 10"
Note: should fix again when we reach 100 :)
2010-01-06 08:20:12 +00:00
Erik van der Kouwe
c554a39725 Move man-pages for zoneinfo, replace with links 2010-01-06 08:00:39 +00:00
Erik van der Kouwe
f9aac2c06b Move man-pages for bzip2, replace with links. 2010-01-06 07:45:45 +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
David van Moolenbroek
1489f14b37 Driver for Attansic L2 FastEthernet (atl2) 2009-12-30 22:42:44 +00:00
David van Moolenbroek
d3fc0eca1d mdb(1) fixes:
- allow core file offsets with high bit set
- repair and enable gcc-compiled binary support
- fix bug leading to random command execution
- remove obsolete ptrace.2 manpage
2009-12-29 21:38:26 +00:00
David van Moolenbroek
0bafee3d78 unbreak, deprivilege dumpcore(1) 2009-12-29 21:34:06 +00:00
Erik van der Kouwe
6dc5d42798 Floating point support functions 2009-12-24 20:22:41 +00:00
David van Moolenbroek
692dc020e1 Correct ping(1) usage string (Bug#372, reported by Leith Brandeland 2009-12-23 23:42:07 +00:00