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284 Commits

Author SHA1 Message Date
reinoud
5458c3911e Small cleanups on memory initialisation by using munmap() instead of mapping 
unaccessible anon memory that we're never going to use anyway!
 2011-09-19 12:52:32 +00:00
reinoud
3de6efb873 Transform the clock signal to a sigaction so we have the info i.e. the 
context! and thus a good definition for a clockframe!
 2011-09-17 21:38:15 +00:00
reinoud
5da488838d Remove the blockage of SIGALRM here too 2011-09-16 16:30:51 +00:00
reinoud
f99c069b55 Reduce the size of the memory base of the testmachine even more! 2011-09-16 16:29:47 +00:00
reinoud
c9c81fefa4 Move the debug printf's to the new dprintf_debug() and disable the SIGALRM 
blocking since we queue them now.
 2011-09-16 16:29:11 +00:00
reinoud
7d70ede9ed Print out the memory information on verbose booting too, its too handy to have 
around without all the goo of debug printouts
 2011-09-16 16:27:39 +00:00
reinoud
8e95c015a7 Split the two debug sections 2011-09-16 16:26:19 +00:00
reinoud
9923cc8437 Allthough in normal practice at most two are queued, with all the debug info 
spounting outi, a lot can get queued in the first phase of kernel startup.
especially the clock.
 2011-09-16 16:25:44 +00:00
reinoud
609efbfe19 Like the others, let the clock signal restart calls 2011-09-16 16:24:01 +00:00
jmcneill
d4bcf1a5bb push TEXTADDR option into kernel makefile 2011-09-16 11:28:36 +00:00
reinoud
568419374b Reduce the amount of memory needed to run by default 2011-09-16 11:05:42 +00:00
reinoud
4e15406e15 Use vfprintf() to make it compile under 5.1 again 2011-09-15 20:25:23 +00:00
reinoud
970d3494e4 Check reentry to prevent double use of the aiocb structure 2011-09-15 19:32:28 +00:00
reinoud
5ee4952c26 Re-implement pmap_zero_page() and pmap_copy_page() by using 
mmap + memset/memcpy + munmap.
 2011-09-15 17:44:13 +00:00
reinoud
12cc391547 Implement pmap_copy_page()! That was missing a long time! 2011-09-15 15:34:19 +00:00
reinoud
6f2183f037 Clarify pmap_copy's function as a dummy 2011-09-15 15:24:39 +00:00
reinoud
76f29c38b1 Cleanup pmap_extract(); no functional change 2011-09-15 15:20:17 +00:00
reinoud
6c2ee61718 Implement pmap_unwire(); not seen it called yet though 2011-09-15 15:08:51 +00:00
reinoud
f52cc8bb37 Remove temporary the optimalization code of pmap_remove_all() until the 
suspected pmap problems are fixed/found.
 2011-09-15 15:02:35 +00:00
reinoud
d0843f465d On entering an entry to pmap, activate the entry directly if adding to an 
already active pmap.
 2011-09-15 14:55:23 +00:00
reinoud
e9b623c601 Only activate pages that are in active pmaps 2011-09-15 14:45:22 +00:00
reinoud
ac407d69d7 Adjust default parameters 2011-09-15 12:28:24 +00:00
reinoud
6a2055af55 Move to dprintf_debug() too 2011-09-15 12:26:51 +00:00
reinoud
8fb07d9b54 Move to dprintf_debug() 2011-09-15 12:25:25 +00:00
reinoud
c077611cdc Implement a dprintf_debug() analog to aprint_debug() but printing it to stderr 
using vdprintf() to bypass the kernel buffer. It is currently printing only on
the -x boot flag but might get a more specific one since its quite verbose!
 2011-09-15 12:23:51 +00:00
reinoud
89e01a7315 Code audit revealed missing brackets and a silly old constant of 1024 
lingering around. Fixed with the right values.
 2011-09-14 19:45:27 +00:00
reinoud
a353dd16f3 Make stacksize of newly spawn lwp's bigger than one page. Actually use the 
variable stack_size now
 2011-09-14 18:30:13 +00:00
reinoud
fa8df51a50 Implement in-place execution for binaries! No more MKPIE/MKPIC for userland 
anymore!
 2011-09-14 18:28:36 +00:00
reinoud
d48a18a7e3 Provide thunk fuction to return the host machine's VM_MIN_ADDRESS 2011-09-14 18:26:24 +00:00
reinoud
515a85d45d Add missing processor status flag file i forgot to add 2011-09-13 11:22:07 +00:00
reinoud
fed9a7ba09 Forgot the clock 2011-09-13 10:42:34 +00:00
reinoud
1b737a9a66 Remove excess signal stack declarations and remove the clock and ld signals 
from the signal stack since they are only issued shortly.
 2011-09-13 10:40:26 +00:00
reinoud
cfcb954ea9 Implement pmap_protect() and pmap_remove_all() 2011-09-13 10:38:48 +00:00
reinoud
ada358e9e2 Keep processing since we *might* have missed one during execution 2011-09-13 10:38:04 +00:00
reinoud
4b103e4fc6 Move the clock device and the ld device to the new spl interrupt PIC 2011-09-12 12:25:45 +00:00
reinoud
4c1ac21f06 Implement spl level based priority interrupt controller in software 2011-09-12 12:24:34 +00:00
reinoud
52976d256a Make cpu_lwp_trampo only jump once and make successive jumps go to the func 
only
 2011-09-10 10:37:06 +00:00
reinoud
de98cb6774 The illegal instruction handler can exist on the usermodes stack and the 
stackframe will disappear when its switched back.
 2011-09-10 10:29:39 +00:00
reinoud
2041dd27bc Make the trampoline only jump once! 
All next calls are directed directly to the func specified.
 2011-09-09 20:14:33 +00:00
reinoud
a1730aac72 Use the new thunk_makecontext() scheme with function and upto 3 aguments 2011-09-09 20:06:04 +00:00
reinoud
ed2801c109 Sanitise thunk_makecontext() allowing upto 3 random arguments 2011-09-09 20:04:43 +00:00
reinoud
c37f580072 Streamline makecontext() calls to really only specify the number of arguments 
to prevent side-effects
 2011-09-09 18:41:16 +00:00
reinoud
772c2c0c6d Clean up cpu_trampoline and link the context so we dont have to manually do 
that.
 2011-09-09 16:24:44 +00:00
reinoud
6efc43af66 machdep.c: Cleanup the machine dependent code and set the carry flag on error 
out. While here also clean up register printing.

syscall.c: Add debug syscall printing code to track basic syscalls being
taken.
 2011-09-09 12:44:27 +00:00
reinoud
4d72a86db6 Make pmap.c not so chatty unless we've enabled debug and verbose 2011-09-09 12:41:12 +00:00
reinoud
8058f19f87 Implement TBL functionality by remembering if its mapped in or not before 
guessing and adjusting access types.

While here, when we hit a read-access fault and reference the page, also mark
it for executable when its permissions permit it. Distinguising between the
two is neigh impossible as we need to guess/derive the access the process
tried to have to the memory: we dont know if its a read/write/exec try.

Also clean up some debug messages.
 2011-09-09 12:28:05 +00:00
reinoud
f0de0f3104 Be more verbose in trap.c on what address should be passed to userland. Also 
detail about what function goes into recurse
 2011-09-09 12:21:57 +00:00
reinoud
cf0d0b43fb Implement a working(!) syscall! well, it can call a number of syscalls without 
dying ;)
 2011-09-08 19:38:59 +00:00
reinoud
71ec3c5abe Remove not used variable from the pcb.h 2011-09-08 19:37:01 +00:00
reinoud
dde6f9699b Use the machdep.h and now use the md_check_syscall_opcode() 2011-09-08 15:13:27 +00:00