Russ Cox
89bfdd4db1
multiboot support and memory-only (no disk) kernel
2011-01-11 13:27:45 -05:00
Russ Cox
af6a6a4775
mp: do not panic on surprising hw
2011-01-11 13:16:28 -05:00
Russ Cox
1a81e38b17
make new code like old code
...
Variable declarations at top of function,
separate from initialization.
Use == 0 instead of ! for checking pointers.
Consistent spacing around {, *, casts.
Declare 0-parameter functions as (void) not ().
Integer valued functions return -1 on failure, 0 on success.
2011-01-11 13:01:13 -05:00
Russ Cox
240679608c
mkfs: avoid clash with system struct stat
2011-01-10 10:43:40 -05:00
Russ Cox
e92fd6142d
mkfs: avoid out of bounds access to sb in wsect
2011-01-02 17:59:57 -05:00
Robert Morris
2ea6c764c3
even more fabulous exec
2010-09-29 14:12:26 -04:00
Robert Morris
06feabecee
check exec() arg length
...
fix double iunlockput
2010-09-27 16:17:57 -04:00
Robert Morris
4655d42e3b
copyout() copies data to a va in a pagetable, for exec() &c
...
usertest that passes too many arguments, break exec
2010-09-27 16:14:33 -04:00
Robert Morris
a9183883b8
map kernel instructions r/o
2010-09-20 06:00:22 -04:00
Robert Morris
26d11ee8dc
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2010-09-19 13:48:22 -04:00
Robert Morris
05d66b0629
my comment is wrong, exec handles BSS fine
2010-09-19 13:47:52 -04:00
Robert Morris
4587b35847
exec questions
2010-09-19 07:18:42 -04:00
Austin Clements
4c274cef74
Simplify boot loader by removing some JOS'isms
2010-09-15 16:15:07 -04:00
Robert Morris
faad047ab2
change some comments, maybe more informative
...
delete most comments from bootother.S (since copy of bootasm.S)
ksegment() -> seginit()
move more stuff from main() to mainc()
2010-09-13 15:34:44 -04:00
Austin Clements
124fe7e457
Rev 4
2010-09-03 15:47:28 -04:00
Austin Clements
cc21c06e3b
Update example in TOC footer
2010-09-02 19:03:48 -04:00
Austin Clements
588644f472
Consistent style in defs.h
2010-09-02 19:01:25 -04:00
Austin Clements
8440dbfee1
Get consoleintr back on one page
2010-09-02 18:54:50 -04:00
Austin Clements
08eef9eae5
Get cgaputc and consputc back on the same page
2010-09-02 18:50:49 -04:00
Austin Clements
5bf11c50b5
Get rid of the blank page in picirq.c. It misaligs things now.
2010-09-02 18:36:06 -04:00
Austin Clements
79cd8b3eed
Simplify allocuvm/deallocuvm to operate in a contiguous memory model. This makes their interface match up better with proc->sz and also simplifies the callers (it even gets the main body of exec on one page).
2010-09-02 18:28:36 -04:00
Austin Clements
d49d31381d
Nits
2010-09-02 17:03:19 -04:00
Austin Clements
9a4670a138
Comment inituvm and loaduvm
2010-09-02 16:39:55 -04:00
Austin Clements
93a1e4cb07
Fix comment capitalization
2010-09-02 16:36:38 -04:00
Austin Clements
f25a3f9a41
Rearrange vm.c so it's in logical order and prints nicely. Shorten a few functions in uninteresting ways to make them fit.
2010-09-02 16:23:15 -04:00
Austin Clements
f53e6110be
Simplify inituvm and userinit by assuming initcode fits on a page
2010-09-02 15:42:25 -04:00
Austin Clements
b3cfd7fc37
Simplify freevm using deallocuvm
2010-09-02 15:18:19 -04:00
Austin Clements
c7c21467c3
Oops. Broke the build when I rearranged proc.c
2010-09-02 14:30:06 -04:00
Austin Clements
d599aa2e40
Remove unused nop_pause function.
2010-09-02 14:08:45 -04:00
Austin Clements
d8828817d7
Rearrange proc.h and proc.c to get our action-packed spreads back (mostly). They also make sense in this order, so it's not just for page layout.
2010-09-02 04:15:17 -04:00
Austin Clements
dd3ecd42cd
Re-re-arrange bootasm and bootother. We can't get bootasm and bootmain on the same page, but this will make them easier to flip between.
2010-09-02 04:06:35 -04:00
Austin Clements
d2c7f64978
I totally misunderstood the even/odd spec. Add some docs, remove my 'left+' hack, and orthogonalize left/right versus even/odd so you can specify them independently.
2010-09-02 04:03:42 -04:00
Austin Clements
9d7a63e073
Specify in runoff.spec which side sheet 1 is on, since it keeps changing
2010-09-02 03:57:20 -04:00
Austin Clements
0fa1ab632f
Pack five columns into cross-ref. This saves us an entire page and fixes the single dangling line.
2010-09-02 03:56:36 -04:00
Austin Clements
1280d26802
Oops, missed a comment about the stack guard
2010-09-02 03:36:39 -04:00
Austin Clements
4d245c79f9
Add Nickolai and myself and scrunch two lines out of the text elsewhere
2010-09-02 03:25:33 -04:00
Austin Clements
d3ecf3eb44
Slight simplification of copyuvm. We could simplify other things now that processes are contiguous, but we'd have to think harder about the error paths.
2010-09-01 17:14:58 -04:00
Austin Clements
b1d41d6788
Remove the stack guard page. Processes are now contiguous from 0 to proc->sz, which means our syscall argument validation is correct. Add a pointer validation test and remove the stack test, which tested for the guard page.
2010-09-01 16:46:37 -04:00
Austin Clements
41c4bbb505
Make it easy to change the number of CPUs
2010-09-01 02:14:35 -04:00
Austin Clements
b0751a3e9b
Space police
2010-09-01 00:41:25 -04:00
Austin Clements
5efca9054f
Tab police
2010-09-01 00:32:27 -04:00
Austin Clements
5c4dc7395b
Merge branch 'master' of git+ssh://am.lcs/home/am0/6.828/xv6
2010-09-01 00:31:04 -04:00
Austin Clements
ba04b3e70e
Fix similar leak in copyuvm
2010-09-01 00:27:12 -04:00
Austin Clements
dd645ef119
Cleanup if allocuvm fails to alloc. Add a test.
2010-08-31 21:49:49 -04:00
Robert Morris
23c3e52c2f
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2010-08-31 19:21:52 -04:00
Robert Morris
3597d5dc70
oops. last minute simplicifaction to kalloc().
2010-08-31 19:21:33 -04:00
Austin Clements
5048762c7e
Page break kalloc.c
2010-08-31 17:52:03 -04:00
Austin Clements
87b2099ae4
Our proc.c alignment is perfect. Since ksegment/usegment went away, we get a column back, so we get our two action-packed spreads.
2010-08-31 17:49:47 -04:00
Austin Clements
13b3f4d2e3
Make it possible to express half-page preferences
2010-08-31 17:46:30 -04:00
Austin Clements
fd462b6a01
Got the meat of spinlocks on one spread
2010-08-31 17:40:21 -04:00
