]> Devi Nivas Git - cs3210-lab1.git/log
cs3210-lab1.git
19 years agocomplain if no disk 1
rtm [Wed, 30 Aug 2006 18:55:06 +0000 (18:55 +0000)]
complain if no disk 1
lots of cleanup

19 years agonits
rtm [Tue, 29 Aug 2006 21:35:30 +0000 (21:35 +0000)]
nits

19 years agoclear killed flag in exit
rtm [Tue, 29 Aug 2006 19:59:52 +0000 (19:59 +0000)]
clear killed flag in exit
idecref cwd in exit

19 years agoprune unneeded panics and debug output
rtm [Tue, 29 Aug 2006 19:06:37 +0000 (19:06 +0000)]
prune unneeded panics and debug output

19 years agobetter printout
kaashoek [Tue, 29 Aug 2006 17:50:19 +0000 (17:50 +0000)]
better printout

19 years agoi broke sbrk, fix it
rtm [Tue, 29 Aug 2006 17:01:40 +0000 (17:01 +0000)]
i broke sbrk, fix it

19 years agoclean up stale error checks and panics
rtm [Tue, 29 Aug 2006 14:45:45 +0000 (14:45 +0000)]
clean up stale error checks and panics
delete unused functions
a few comments

19 years agosome text in readme
kaashoek [Mon, 28 Aug 2006 18:31:33 +0000 (18:31 +0000)]
some text in readme
generate postscript printout

19 years agoremove smallcap version
kaashoek [Mon, 28 Aug 2006 15:24:23 +0000 (15:24 +0000)]
remove smallcap version

19 years agoconsistently ignore more than 14 chars in path component
rtm [Sat, 26 Aug 2006 16:31:05 +0000 (16:31 +0000)]
consistently ignore more than 14 chars in path component
forbid create or write of existing directory
mkdir("d1/d2/d3"), .. should refer to d2, not cwd
mkdir increase parent link count

19 years agomkdir check error from mknod
rtm [Sat, 26 Aug 2006 15:06:59 +0000 (15:06 +0000)]
mkdir check error from mknod
chdir return -1 if target not a dir

19 years agofstests bugs
rtm [Fri, 25 Aug 2006 01:37:54 +0000 (01:37 +0000)]
fstests bugs

19 years agofix writing the indirect block
rtm [Fri, 25 Aug 2006 01:25:22 +0000 (01:25 +0000)]
fix writing the indirect block

19 years agoinode addrs[NDIRECT] -> NADDRS
rtm [Fri, 25 Aug 2006 01:11:30 +0000 (01:11 +0000)]
inode addrs[NDIRECT] -> NADDRS
fix race in mknod / creat
use last component in dirent in mknod, not path

19 years agokill user process when it generates an unhandled trap (e.g., 13)
kaashoek [Fri, 25 Aug 2006 00:43:17 +0000 (00:43 +0000)]
kill user process when it generates an unhandled trap (e.g., 13)
fix bug in test code of malloc

19 years agobug in sbrk
kaashoek [Thu, 24 Aug 2006 19:24:36 +0000 (19:24 +0000)]
bug in sbrk
test malloc

19 years agobig directory test
rtm [Thu, 24 Aug 2006 19:21:19 +0000 (19:21 +0000)]
big directory test

19 years agofix bugs in indirect-file code
kaashoek [Thu, 24 Aug 2006 17:28:01 +0000 (17:28 +0000)]
fix bugs in indirect-file code
clean up test program

19 years agouser-level malloc (untested)
kaashoek [Thu, 24 Aug 2006 02:44:41 +0000 (02:44 +0000)]
user-level malloc (untested)
nit in sbrk
indirect block
fix dup to share fd struct

19 years agoi/o redirection in sh
kaashoek [Wed, 23 Aug 2006 01:09:24 +0000 (01:09 +0000)]
i/o redirection in sh
better parsing of sh commands (copied from jos sh)
cat: read from 1 if no args
sbrk system call, but untested
getpid system call
moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?

19 years agocompiling, but untested dup
kaashoek [Sun, 20 Aug 2006 03:33:01 +0000 (03:33 +0000)]
compiling, but untested dup

19 years agoremoved block system call
kaashoek [Sun, 20 Aug 2006 03:08:54 +0000 (03:08 +0000)]
removed block system call
renumber system calls (run gmake clean!)
skeleton for dup system call

19 years agochdir
kaashoek [Sat, 19 Aug 2006 23:41:34 +0000 (23:41 +0000)]
chdir
cd in shell
nits in mkdir, ls, etc.

19 years agoproc[0] can sleep(), at least after it gets to main00()
rtm [Wed, 16 Aug 2006 01:56:00 +0000 (01:56 +0000)]
proc[0] can sleep(), at least after it gets to main00()
proc[0] calls iget(rootdev, 1) before forking init

19 years agono more proc[] entry per cpu for idle loop
rtm [Tue, 15 Aug 2006 22:18:20 +0000 (22:18 +0000)]
no more proc[] entry per cpu for idle loop
each cpu[] has its own gdt and tss
no per-proc gdt or tss, re-write cpu's in scheduler (you win, cliff)
main0() switches to cpu[0].mpstack

19 years agooops
kaashoek [Tue, 15 Aug 2006 15:54:53 +0000 (15:54 +0000)]
oops

19 years agocommented out code for cwd
kaashoek [Tue, 15 Aug 2006 15:53:46 +0000 (15:53 +0000)]
commented out code for cwd

19 years agouser-level programs: mkdir and rm
kaashoek [Mon, 14 Aug 2006 21:22:13 +0000 (21:22 +0000)]
user-level programs: mkdir and rm
shell parses arguments (very simplistic)
readme version of README (sh doesn't deal with capital characters)
printf recognizes %c
nicer output format for ls

19 years agoset size for directories correctly in wdir and mkfs
kaashoek [Mon, 14 Aug 2006 14:13:52 +0000 (14:13 +0000)]
set size for directories correctly in wdir and mkfs
mkdir
ls shows stat info for each dir entry

19 years agostart on mkdir
kaashoek [Mon, 14 Aug 2006 03:00:13 +0000 (03:00 +0000)]
start on mkdir
stat

19 years agowdir now uses readi/writei
rtm [Sun, 13 Aug 2006 20:06:42 +0000 (20:06 +0000)]
wdir now uses readi/writei

19 years agofix iget() bug that allocated in-use inode[] entries
rtm [Sun, 13 Aug 2006 15:51:58 +0000 (15:51 +0000)]
fix iget() bug that allocated in-use inode[] entries

19 years agodon't print unallocated dir entries
kaashoek [Sun, 13 Aug 2006 15:05:58 +0000 (15:05 +0000)]
don't print unallocated dir entries

19 years agonamei returns locked parent dir inode for create / unlink
rtm [Sun, 13 Aug 2006 12:22:44 +0000 (12:22 +0000)]
namei returns locked parent dir inode for create / unlink
don't hold fd table lock across idecref() (latter does block i/o)
idecref calls iput() in case last ref -> freeing inode
dir size is 512 * # blocks, so readi/writei &c work
unlink deletes dirent even if ip->nlink > 0

19 years agozero freed blocks
kaashoek [Sun, 13 Aug 2006 05:28:04 +0000 (05:28 +0000)]
zero freed blocks
multi-block directories
track size of directory (size = number entries in use)
should namei (and other code that scans through directories) scan through all blocks of a directory and not use size?

19 years agolink()
rtm [Sun, 13 Aug 2006 02:12:44 +0000 (02:12 +0000)]
link()

19 years agozero out all of dirent.name when creating
rtm [Sat, 12 Aug 2006 22:44:26 +0000 (22:44 +0000)]
zero out all of dirent.name when creating
don't increase length of directory

19 years agoLRU disk cache replacement
rtm [Sat, 12 Aug 2006 22:34:13 +0000 (22:34 +0000)]
LRU disk cache replacement

19 years agofree inode only when noone is holding a pointer to it. should fix open-unlink-
kaashoek [Sat, 12 Aug 2006 22:03:01 +0000 (22:03 +0000)]
free inode only when noone is holding a pointer to it.  should fix open-unlink-
read problem, but untested

19 years agobuffer cache, fifo replacement
rtm [Sat, 12 Aug 2006 17:17:35 +0000 (17:17 +0000)]
buffer cache, fifo replacement

19 years agomknod set nlink = 1
rtm [Sat, 12 Aug 2006 16:47:48 +0000 (16:47 +0000)]
mknod set nlink = 1
usertests for concurrent create/delete, and read() after unlink()

19 years agofix getblk to actually lock the block
rtm [Sat, 12 Aug 2006 11:38:57 +0000 (11:38 +0000)]
fix getblk to actually lock the block
no more cons_put system calls
usertests tests two processes writing files

19 years agofstat
kaashoek [Sat, 12 Aug 2006 04:33:50 +0000 (04:33 +0000)]
fstat
primitive ls

19 years agounlink,mknod,create with multi-component pathnames should work now
kaashoek [Sat, 12 Aug 2006 01:25:45 +0000 (01:25 +0000)]
unlink,mknod,create with multi-component pathnames should work now
remove console init code from userfs

19 years agofix deadlock---iput(dp) asap
kaashoek [Fri, 11 Aug 2006 18:18:38 +0000 (18:18 +0000)]
fix deadlock---iput(dp) asap
working unlink, but doesn't free dir blocks that become empty
remove out-of-date comment in ioapic

19 years agoinit creates console, opens 0/1/2, runs sh
rtm [Fri, 11 Aug 2006 13:55:18 +0000 (13:55 +0000)]
init creates console, opens 0/1/2, runs sh
sh accepts 0-argument commands (like userfs)
reads from console

19 years agointerrupts could be recursive since lapic_eoi() called before rti
rtm [Thu, 10 Aug 2006 22:08:14 +0000 (22:08 +0000)]
interrupts could be recursive since lapic_eoi() called before rti
so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()

19 years agolow-level keyboard input (not hooked up to /dev yet)
rtm [Thu, 10 Aug 2006 02:07:10 +0000 (02:07 +0000)]
low-level keyboard input (not hooked up to /dev yet)
fix acquire() to cli() *before* incrementing nlock
make T_SYSCALL a trap gate, not an interrupt gate
sadly, various crashes if you hold down a keyboard key...

19 years agoprintf
kaashoek [Thu, 10 Aug 2006 01:28:57 +0000 (01:28 +0000)]
printf
convert userfs to use printf
bfree
ifree
writei
start on unlink

19 years agoiread for T_DEV
kaashoek [Wed, 9 Aug 2006 19:25:20 +0000 (19:25 +0000)]
iread for T_DEV
O_RDWR, etc.
create file

19 years agofix test program: don't close before writing
kaashoek [Wed, 9 Aug 2006 17:25:10 +0000 (17:25 +0000)]
fix test program: don't close before writing
set fd to writeable on open for write

19 years agodevsw
kaashoek [Wed, 9 Aug 2006 16:04:04 +0000 (16:04 +0000)]
devsw
checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works

19 years agooops, update directory inode too
kaashoek [Wed, 9 Aug 2006 01:19:48 +0000 (01:19 +0000)]
oops, update directory inode too

19 years agoblock bitmap
kaashoek [Wed, 9 Aug 2006 01:09:36 +0000 (01:09 +0000)]
block bitmap
balloc

19 years agofix race in holding() check in acquire()
rtm [Tue, 8 Aug 2006 19:58:06 +0000 (19:58 +0000)]
fix race in holding() check in acquire()
give cpu1 a TSS and gdt for when it enters scheduler()
and a pseudo proc[] entry for each cpu
cpu0 waits for each other cpu to start up
read() for files

19 years agomknod,ialloc,iupdate
kaashoek [Tue, 8 Aug 2006 18:07:37 +0000 (18:07 +0000)]
mknod,ialloc,iupdate

19 years agobwrite
kaashoek [Mon, 7 Aug 2006 01:38:46 +0000 (01:38 +0000)]
bwrite

19 years agogeneralize async read to support write too
kaashoek [Sun, 6 Aug 2006 20:28:15 +0000 (20:28 +0000)]
generalize async read to support write too

19 years agonit
kaashoek [Fri, 4 Aug 2006 18:23:23 +0000 (18:23 +0000)]
nit

19 years agobetter interrupt plan---this one appears to work
kaashoek [Fri, 4 Aug 2006 18:12:31 +0000 (18:12 +0000)]
better interrupt plan---this one appears to work
ioapic

19 years agoopen()
rtm [Sat, 29 Jul 2006 09:35:02 +0000 (09:35 +0000)]
open()

19 years agoacquire+release ide_lock in ide_intr
kaashoek [Sat, 29 Jul 2006 01:20:15 +0000 (01:20 +0000)]
acquire+release ide_lock in ide_intr

19 years agoexec arguments
rtm [Fri, 28 Jul 2006 22:33:07 +0000 (22:33 +0000)]
exec arguments

19 years agoprimitive exec
rtm [Thu, 27 Jul 2006 21:10:00 +0000 (21:10 +0000)]
primitive exec

19 years agoupdate
rtm [Wed, 26 Jul 2006 10:17:39 +0000 (10:17 +0000)]
update

19 years agonamei
rtm [Fri, 21 Jul 2006 22:10:40 +0000 (22:10 +0000)]
namei

19 years agobread
rtm [Fri, 21 Jul 2006 13:18:04 +0000 (13:18 +0000)]
bread
iget
mkfs makes a file system image
put this in your .bochsrc:
ata0-slave: type=disk, mode=flat, path="fs.img", cylinders=1024, heads=1, spt=1

19 years agouint32_t -> uint &c
rtm [Thu, 20 Jul 2006 09:07:53 +0000 (09:07 +0000)]
uint32_t -> uint &c

19 years agoprevent longjmp / forkret from writing over tf->edi
rtm [Tue, 18 Jul 2006 19:22:37 +0000 (19:22 +0000)]
prevent longjmp / forkret from writing over tf->edi

19 years agoadd ide_lock for sleep
rsc [Mon, 17 Jul 2006 05:00:25 +0000 (05:00 +0000)]
add ide_lock for sleep

19 years agostandarize on unix-like lowercase struct names
rsc [Mon, 17 Jul 2006 01:58:13 +0000 (01:58 +0000)]
standarize on unix-like lowercase struct names

19 years agono more cons_putc; real_cons_putc -> cons_putc
rsc [Mon, 17 Jul 2006 01:53:43 +0000 (01:53 +0000)]
no more cons_putc; real_cons_putc -> cons_putc

19 years agoadd uint and standardize on typedefs instead of unsigned
rsc [Mon, 17 Jul 2006 01:52:13 +0000 (01:52 +0000)]
add uint and standardize on typedefs instead of unsigned

19 years agocleaner
rsc [Mon, 17 Jul 2006 01:51:47 +0000 (01:51 +0000)]
cleaner

19 years agogoodbye PushRegs
rsc [Mon, 17 Jul 2006 01:36:39 +0000 (01:36 +0000)]
goodbye PushRegs

19 years agocleaner
rsc [Mon, 17 Jul 2006 01:36:32 +0000 (01:36 +0000)]
cleaner

19 years agonitpicks
rsc [Mon, 17 Jul 2006 01:25:22 +0000 (01:25 +0000)]
nitpicks

19 years agoEliminate annoying Pseudodesc structure.
rsc [Sun, 16 Jul 2006 16:55:52 +0000 (16:55 +0000)]
Eliminate annoying Pseudodesc structure.
Eliminate unnecessary parts of mmu.h.

19 years agovarious little fixes that should have been in earlier checkins
rsc [Sun, 16 Jul 2006 16:06:03 +0000 (16:06 +0000)]
various little fixes that should have been in earlier checkins

19 years agomore idiomatic c
rsc [Sun, 16 Jul 2006 16:05:37 +0000 (16:05 +0000)]
more idiomatic c

19 years agono memlayout.h
rsc [Sun, 16 Jul 2006 16:04:44 +0000 (16:04 +0000)]
no memlayout.h

19 years agowas empty; gone
rsc [Sun, 16 Jul 2006 16:04:15 +0000 (16:04 +0000)]
was empty; gone

19 years agofix main return type
rsc [Sun, 16 Jul 2006 16:03:51 +0000 (16:03 +0000)]
fix main return type

19 years agoadd %s to cprintf for cons_puts
rsc [Sun, 16 Jul 2006 16:00:03 +0000 (16:00 +0000)]
add %s to cprintf for cons_puts

19 years agoKeep interrupts disabled during startup.
rsc [Sun, 16 Jul 2006 15:50:13 +0000 (15:50 +0000)]
Keep interrupts disabled during startup.

19 years agostandardize on not using foo_ prefix in struct foo
rsc [Sun, 16 Jul 2006 15:41:47 +0000 (15:41 +0000)]
standardize on not using foo_ prefix in struct foo

19 years agorename swtch.S to setjmp.S
rsc [Sun, 16 Jul 2006 15:40:51 +0000 (15:40 +0000)]
rename swtch.S to setjmp.S

19 years agostandardize on #include "foo" not <foo>
rsc [Sun, 16 Jul 2006 15:40:05 +0000 (15:40 +0000)]
standardize on #include "foo" not <foo>

19 years agoadd minimal comments to generator vector table
rsc [Sun, 16 Jul 2006 15:38:56 +0000 (15:38 +0000)]
add minimal comments to generator vector table

19 years agoremove acquire1 and release1
rsc [Sun, 16 Jul 2006 15:38:13 +0000 (15:38 +0000)]
remove acquire1 and release1

19 years agoadd cons_puts for atomic (readable) output
rsc [Sun, 16 Jul 2006 15:38:00 +0000 (15:38 +0000)]
add cons_puts for atomic (readable) output

19 years agoAdd user.h for prototypes.
rsc [Sun, 16 Jul 2006 15:36:31 +0000 (15:36 +0000)]
Add user.h for prototypes.
Add cons_puts for cleaner output.

19 years agotidy up
rsc [Sun, 16 Jul 2006 15:35:18 +0000 (15:35 +0000)]
tidy up

19 years agoDon't kill process when inside kernel.
rsc [Sun, 16 Jul 2006 02:09:45 +0000 (02:09 +0000)]
Don't kill process when inside kernel.

19 years agomore name cleanup
rsc [Sun, 16 Jul 2006 02:04:58 +0000 (02:04 +0000)]
more name cleanup

19 years agoremove non-idiomatic increment/decrement
rsc [Sun, 16 Jul 2006 01:52:22 +0000 (01:52 +0000)]
remove non-idiomatic increment/decrement

19 years agoRename fd_reference to more suggestive fd_incref.
rsc [Sun, 16 Jul 2006 01:49:03 +0000 (01:49 +0000)]
Rename fd_reference to more suggestive fd_incref.
(Fd_reference sounds like it might just return the ref count.)

19 years agoAttempt to clean up newproc somewhat.
rsc [Sun, 16 Jul 2006 01:47:40 +0000 (01:47 +0000)]
Attempt to clean up newproc somewhat.

Also remove all calls to memcpy in favor of
memmove, which has defined semantics when
the ranges overlap.  The fact that memcpy was
working in console.c to scroll the screen is not
guaranteed by all implementations.

19 years agoNew scheduler.
rsc [Sun, 16 Jul 2006 01:15:28 +0000 (01:15 +0000)]
New scheduler.

Removed cli and sti stack in favor of tracking
number of locks held on each CPU and explicit
conditionals in spinlock.c.

19 years agoUndo change from this morning that wasn't intended to get in.
rsc [Sun, 16 Jul 2006 01:12:57 +0000 (01:12 +0000)]
Undo change from this morning that wasn't intended to get in.