rsc
19333efb9e
Some proc cleanup, moving some of copyproc into allocproc.
...
Also, an experiment: use "thread-local" storage for c and cp
instead of the #define macro for curproc[cpu()].
2009-05-31 00:28:45 +00:00
rsc
0c7f483838
move T_DIR etc into stat.h; move type up
2009-05-31 00:26:10 +00:00
rsc
74afa70d30
Add serial port input/output.
...
Delete parallel port output.
Works well with qemu -nographic mode.
2009-05-31 00:24:11 +00:00
rsc
0ca9ca0c55
slight rearrangement; sleep on b not buf.
2009-05-31 00:23:00 +00:00
rsc
d827c8f3c8
Add MIT license file; update xv6-rev2.tar.gz with LICENSE.
...
Other files unchanged.
2009-05-26 16:58:33 +00:00
rsc
2157576107
be consistent: no underscores in function names
2009-03-08 22:07:13 +00:00
rsc
b7f653dc49
xv6: boot loader adjustments
...
do Bochs breakpoint and spin in bootasm.S.
not needed in bootmain too.
fix readseg bug (rounding of va).
zero segments when memsz > filesz.
no need to clear BSS in kernel main.
make bootother.S like bootasm.S
2009-03-08 21:41:30 +00:00
rsc
8220135362
xv6: use stosb for memset
2009-03-08 21:38:30 +00:00
rsc
c396d065d3
xv6/x86.h: add stosb, fix bugs in insl/outsl (rep not repne)
2009-03-08 21:27:57 +00:00
rsc
4003e9bed8
xv6/x86.h: inline assembly cleanup
2009-03-08 20:56:38 +00:00
rtm
8eb20827c2
Explain why itrunc() is OK w.r.t. crashes.
2008-10-20 18:05:48 +00:00
kolya
15a2693637
try harder to get directory refcounts right
2008-10-17 12:42:13 +00:00
kolya
f3e87bc838
make mkdir crash-safer, as noticed by many students on midterm
2008-10-16 15:18:49 +00:00
kolya
e1626709d6
free the indirect block
2008-10-16 15:00:23 +00:00
kolya
e670a48358
as rtm noticed, avoid doubly-freeing pipe page
2008-10-15 17:42:56 +00:00
kolya
deca9fef83
indent
2008-10-15 05:15:32 +00:00
kolya
c100d9ee2d
cleaner swtch.S
2008-10-15 05:14:10 +00:00
kolya
228e500a0c
save cpus.intena in sched(), so we get the right EFLAGS.IF value once a
...
timer-preempted kernel thread resumes execution in trap() after yield().
otherwise the kernel could get an arbitrary number of nested timer intrs.
2008-10-15 05:01:39 +00:00
kolya
15ce79de14
check cp->killed before returning to user from a timer interrupt
2008-10-15 04:57:02 +00:00
kolya
00ce31c09c
update .cvsignore
2008-10-15 04:54:24 +00:00
kolya
289bbef733
minor cleanup
2008-10-12 20:19:16 +00:00
kolya
f73b81205e
minor cleanup with STUB macro
2008-10-12 19:54:11 +00:00
kolya
c780dbf967
include explicitly initialized globals (int x = 0;) in cross-refs,
...
also thanks to greg price.
2008-10-12 18:45:30 +00:00
kolya
6186836d28
fix: when two names only differed in case, crossrefs only included one of them.
...
thanks to greg price.
2008-10-12 18:33:14 +00:00
rtm
2ce40d7088
be clear what the root i-number is
2008-10-08 18:57:13 +00:00
rtm
be38c8413e
document lock->locked=0 vs xchg(&lock->locked, 0)
2008-09-28 10:53:54 +00:00
kolya
0159c8bb94
trap 9 does not push ec: fix from Greg Price <price@mit.edu>
2008-09-24 18:20:56 +00:00
kolya
c7317d4dc7
always save and restore %fs, %gs to ensure old segment entries are never
...
accessible to user from the hidden CPU segment registers.
2008-09-24 01:48:31 +00:00
rtm
adcd16c3f7
restore std toolprefix
2008-09-11 10:22:01 +00:00
rtm
4651d04ad1
omit *.d from tar file
2008-09-11 10:20:40 +00:00
kaashoek
e9ae6f5cbe
add copyright notice
2008-09-09 11:42:44 +00:00
kolya
f68317533e
make bochsrc work for bochs 2.2.6
2008-09-03 14:10:47 +00:00
kolya
35a6cf84ec
make pdf, ps, tarball
2008-09-03 14:05:52 +00:00
kaashoek
e87dca5cc5
nits in index.txt
...
add slides for shell, x86 intro, x86 virtual memory (deleted JOS from slides)
2008-09-03 12:29:44 +00:00
rsc
f53494c28e
DO NOT MAIL: xv6 web pages
2008-09-03 04:50:04 +00:00
rtm
ee3f75f229
simplify growproc
2008-08-28 17:57:47 +00:00
rtm
98754d687e
avoid a bug w/ exit()
2008-08-28 00:53:24 +00:00
rtm
56082468ea
the old explanation of AP startup might have been correct, but
...
I understand this one.
2008-08-28 00:52:05 +00:00
kolya
02cc595f28
clean up circular buffers, so pipe can queue 512 bytes rather than 511
2008-08-22 00:26:22 +00:00
kolya
5c5470a2fa
fix obvious printf nits after reading through code
2008-08-21 23:24:02 +00:00
rsc
1808b2f1b3
now rev2
2008-08-20 18:00:35 +00:00
rsc
150785a1fd
add nice font
2008-08-20 18:00:24 +00:00
rsc
9b62657ecd
formatting updates
2008-08-20 18:00:13 +00:00
rsc
5b7f8cbe7c
bochs faster
2008-08-20 17:59:29 +00:00
rsc
174729fc55
xv6: latest (as of January 2008)
2008-08-20 17:46:32 +00:00
rsc
eadbd55af2
oops - wrong bit (vic zandy)
2007-12-20 18:27:07 +00:00
rsc
c2258bf4d2
fork minibug
2007-11-28 20:47:22 +00:00
rsc
4f06ae0d42
More complete lapic startup (thanks Silas)
2007-11-28 20:47:10 +00:00
rsc
a6c4711a38
bda[0xE] is a 16-bit segment number,
...
not a real address. So shift 4.
Reported by Silas.
Jim McKie says this code only matters
on ancient EISA MP systems.
2007-11-28 20:17:04 +00:00
rtm
fd6b029401
proc_wait -> wait
2007-10-20 18:25:38 +00:00
