Commit graph

5004 commits

Author SHA1 Message Date
Mohamed Katri d21a633ffb mkfs.mfs: dynamically size image from proto 2012-10-12 15:13:43 +02:00
Ben Gras d343041caa VM: make mapping types explicit
Introduce explicit abstractions for different mapping types,
handling the instantiation, forking, pagefaults and freeing of
anonymous memory, direct physical mappings, shared memory and
physically contiguous anonymous memory as separate types, making
region.c more generic.

Also some other genericification like merging the 3 munmap cases
into one.

COW and SMAP safemap code is still implicit in region.c.
2012-10-12 14:52:01 +02:00
Ben Gras fd4ddef49a VM: munmap used by VM for itself is no longer used 2012-10-12 14:51:35 +02:00
David van Moolenbroek 9733fcdb43 bootloader: usability improvements
- add "edit" menu option, to edit menu commands before executing them;
- add "menu" boot command, to return to the menu from the prompt;
- provide more line editing features when getting input;
- fix a few potential buffer overflows as a side effect.
2012-10-12 01:03:36 +02:00
David van Moolenbroek 52cf951fdc tests: fix IPC test set fix
Partial rollback of git-df39752.
2012-10-11 20:38:41 +02:00
Tomas Hruby 420dfe1145 Merge branch 'master' of git.minix3.org:minix 2012-10-11 09:47:24 +00:00
Tomas Hruby ee99bb81b9 LIBC - getifaddrs() fix
ifpa must be set to something meaningful every time it returns 0.
2012-10-11 09:43:33 +00:00
Ben Gras 39393e7046 minor fixes for safecopy & safemap tests 2012-10-10 19:12:42 +02:00
Kees Jongenburger 49246fcdd5 MMC driver.
Change-Id: I0d460d63070855df9b11eaf3d33eb7bb89c570f1
2012-10-08 09:11:17 +02:00
Kees Jongenburger 4fda063232 Import MMC related bsd headers.
Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>

Change-Id: Ia183d522a6ef1528b045a6fc6cd2e8930c669c32
2012-10-08 09:11:16 +02:00
Arun Thomas 471a03a362 ARM support for kernel and vm 2012-10-07 21:38:03 -04:00
Arne Welzel e35c4f78d2 VFS: fix check_bsf() locking
The check_bsf() macro uses assert(mutex_trylock(&bsf_lock)) and
assumes bsf_lock is locked afterwards. This breaks when compiling
with NOASSERTS="yes". Also: macro to function transition.
2012-09-28 14:57:34 +02:00
Arne Welzel 7e1074732b VFS: resolve unused parameter if NOASSERTS="yes"
If VFS is compiled with NOASSERTS="yes", ctty_opcl() does not
use the op parameter. Change to "non-assert()" sanity check.
2012-09-28 14:57:32 +02:00
pikpik be81e4ec74 daily: makewhatis -f
. use a little less memory and the processor will be
	  freer during start-up.
2012-09-27 23:12:14 +02:00
Ben Gras c595699ca7 unstack, sort: cleanup and improvement
lets unstack
(a) know about in-kernel ipc entry points and
(b) be able handle >2GB symbol offsets.

	. sort: add -x for hex numerical sort
	. unstack: gnm is obsolete
	. unstack: datasizes is obsolete (use nm --size-sort instead)
	. unstack: add ipc entry points read from procfs (hex)
	. unstack: use sort -x to sort symbol order so the procfs ones are
	  sorted independent of position and original ordering
2012-09-26 18:44:55 +02:00
Ben Gras 2cdbb3041d procfs: make ipc vectors available 2012-09-26 17:14:14 +02:00
Arne Welzel 362e4c37a1 memory: use sys_safememset() for /dev/zero 2012-09-26 02:18:00 +02:00
Arne Welzel bf33a1c097 libsys: add sys_safememset() 2012-09-26 02:18:00 +02:00
Arne Welzel d8a89dcbe6 kernel: add safememset() kernel call 2012-09-26 02:18:00 +02:00
Arne Welzel 0617743bd1 kernel: handle pagefaults in vm_memset() 2012-09-26 02:17:59 +02:00
Thomas Veerman e61268c454 TTY: printer better diagnostics
.tell when a line is not initialized
.don't print when a request has failed, we use error codes for that
2012-09-25 09:07:09 +00:00
Thomas Veerman a458e9d00d getty: return speed option 2012-09-25 09:07:09 +00:00
Ben Gras 2d72cbec41 SYSENTER/SYSCALL support
. add cpufeature detection of both
	. use it for both ipc and kernelcall traps, using a register
	  for call number
	. SYSENTER/SYSCALL does not save any context, therefore userland
	  has to save it
	. to accomodate multiple kernel entry/exit types, the entry
	  type is recorded in the process struct. hitherto all types
	  were interrupt (soft int, exception, hard int); now SYSENTER/SYSCALL
	  is new, with the difference that context is not fully restored
	  from proc struct when running the process again. this can't be
	  done as some information is missing.
	. complication: cases in which the kernel has to fully change
	  process context (i.e. sigreturn). in that case the exit type
	  is changed from SYSENTER/SYSEXIT to soft-int (i.e. iret) and
	  context is fully restored from the proc struct. this does mean
	  the PC and SP must change, as the sysenter/sysexit userland code
	  will otherwise try to restore its own context. this is true in the
	  sigreturn case.
	. override all usage by setting libc_ipc=1
2012-09-24 15:53:43 +02:00
Arne Welzel 629829e69c phys_memset improvements
. verify length argument
	. use rep stosl / stosb
2012-09-21 14:15:44 +02:00
Ben Gras 8a3b6ca3bb remove unused <tools.h> 2012-09-20 12:24:22 +02:00
Ben Gras b16aacc7f3 vm: fix failed alloc condition 2012-09-19 22:24:56 +02:00
Ben Gras b6aab00c37 top task uid clear 2012-09-19 19:38:19 +02:00
Thomas Veerman 6cb94cc91b tests: don't chmod 777 everything upon cleanup
rm -rf works just fine no matter what mode bits are set (modulo
file ownership and current user id). Test 43 creates a symlink
to / and the chmod operation would change file permissions outside
of the test directory.
2012-09-19 16:20:41 +00:00
Ben Gras bc4c07f4f1 coverity appeasement - redundant check 2012-09-19 17:19:57 +02:00
Ben Gras 60014efb3e vfs: pm_dumpcore: always clean up process
. whenever this function is called, pm will expect
	  the process to be cleaned up
	. so don't abort the process entirely on error
	. fixes a later 'forking on top of in-use child' vfs panic
2012-09-19 17:13:17 +02:00
Ben Gras 25817b0854 vm: change NO_MEM to a more impossible value
fixes an assert() firing when starting X. thanks to the report by pikpik.

	. NO_MEM was 0, which is actually an existing piece
	  of physical memory. it can't be allocated because it's reserved
	  for bios data (by the kernel), but it can be mapped in (e.g.
	  by X), causing sanity check disaster.
	. NONCONTIGUOUS is also obsolete as all allocations are single-page
	  now, i.e. NONCONTIGUOUS is really the default and only mode.
2012-09-19 15:31:36 +02:00
Ben Gras 24776434f5 worldstone: add -s for statistical profiling 2012-09-19 13:43:17 +02:00
Ben Gras 7047e014c9 coverity appeasement 2012-09-19 13:07:18 +02:00
Ben Gras fe6e291f59 vm, kernel, top: report memory usage of vm, kernel 2012-09-18 23:43:52 +02:00
Ben Gras aa82e375c6 VM: remove dead code 2012-09-18 18:40:57 +02:00
Ben Gras d526f1a0db some coverity fixes. 2012-09-18 15:11:51 +02:00
Ben Gras ddf1981004 VM: restore >4k secondary cache functionality
. by storing length in the yielded blocks node again
2012-09-18 13:17:52 +02:00
Ben Gras ed1af3c86c VM: full munmap
complete munmap implementation; single-page references made
a general munmap() implementation possible to write cleanly.

	. memory: let the MIOCRAMSIZE ioctl set the imgrd device
	  size (but only to 0)
	. let the ramdisk command set sizes to 0
	. use this command to set /dev/imgrd to 0 after mounting /usr
	  in /etc/rc, so the boot time ramdisk is freed (about 4MB
	  currently)
2012-09-18 13:17:52 +02:00
Ben Gras 16c3870b2e VM: abstract datastructures a bit
. a little less duplication in region.c
2012-09-18 13:17:51 +02:00
Ben Gras 0d1f2e6be2 VM: simplify slab allocator
. only keep a list of non-empty, non-full pages with slab objects
	. simplifies alloc/free operations and reduces list management overhead
2012-09-18 13:17:50 +02:00
Ben Gras 19e6dad47b VM: only single page chunks
. only reference single pages in process data structures
   to simplify page faults, copy-on-write, etc.
 . this breaks the secondary cache for objects that are
   not one-page-sized; restored in a next commit
2012-09-18 13:17:49 +02:00
Ben Gras 6d7b770761 VM: static data structure for mem allocation
. allocate physical memory using a fixed, pre-allocated bitmap so there
   are no call cycles and it's avilable earlier
2012-09-18 13:17:48 +02:00
Ben Gras 2cb560297c VM: remove unused dma memory support functions from vm
. unused calls / data structures
2012-09-18 13:17:47 +02:00
Ben Gras 8821c73a9e VM: forget about 'holes'
. unused data structures and code
2012-09-18 13:17:46 +02:00
Ben Gras 6410f4b5db VM: some sanitycheck fixes
minor fixes to restore SANITYCHECKS
2012-09-18 13:17:45 +02:00
Ben Gras d3d8c30c2e libc/libminc malloc reorganization
. rename minix malloc sources to minix-* so Makefile
    references aren't ambiguous
  . throw out malloc source file copies in libminc
  . make libminc use phkmalloc instead of minix malloc (slightly faster)
2012-09-18 13:17:44 +02:00
Thomas Veerman c087a60ed2 VFS: fix GCC compilation error 2012-09-17 15:29:38 +00:00
Thomas Veerman 8152b3ac4c INET: fix crash recovery script 2012-09-17 11:01:48 +00:00
Thomas Veerman edefb7b35f PM: don't deliver signals to VM 2012-09-17 11:01:46 +00:00
Thomas Veerman 3881e732a9 VFS: panic when unmount_all fails 2012-09-17 11:01:46 +00:00