kaashoek
74493bf446
kill user process when it generates an unhandled trap (e.g., 13)
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fix bug in test code of malloc
2006-08-25 00:43:17 +00:00
kaashoek
81d5219998
bug in sbrk
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test malloc
2006-08-24 19:24:36 +00:00
rtm
bcfb84b6a9
big directory test
2006-08-24 19:21:19 +00:00
kaashoek
1be7668537
fix bugs in indirect-file code
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clean up test program
2006-08-24 17:28:01 +00:00
kaashoek
ea2909b6b5
user-level malloc (untested)
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nit in sbrk
indirect block
fix dup to share fd struct
2006-08-24 02:44:41 +00:00
kaashoek
8b58e81077
i/o redirection in sh
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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?
2006-08-23 01:09:24 +00:00
kaashoek
f18ab5c04e
compiling, but untested dup
2006-08-20 03:33:01 +00:00
kaashoek
16083d4462
removed block system call
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renumber system calls (run gmake clean!)
skeleton for dup system call
2006-08-20 03:08:54 +00:00
kaashoek
8787cd01df
chdir
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cd in shell
nits in mkdir, ls, etc.
2006-08-19 23:41:34 +00:00
rtm
ceb0e42796
proc[0] can sleep(), at least after it gets to main00()
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proc[0] calls iget(rootdev, 1) before forking init
2006-08-16 01:56:00 +00:00
rtm
350e63f7a9
no more proc[] entry per cpu for idle loop
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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
2006-08-15 22:18:20 +00:00
kaashoek
69332d1918
oops
2006-08-15 15:54:53 +00:00
kaashoek
e958c538fa
commented out code for cwd
2006-08-15 15:53:46 +00:00
kaashoek
d7b3b802f4
user-level programs: mkdir and rm
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shell parses arguments (very simplistic)
readme version of README (sh doesn't deal with capital characters)
printf recognizes %c
nicer output format for ls
2006-08-14 21:22:13 +00:00
kaashoek
bdb6643303
set size for directories correctly in wdir and mkfs
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mkdir
ls shows stat info for each dir entry
2006-08-14 14:13:52 +00:00
kaashoek
d15f0d1033
start on mkdir
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stat
2006-08-14 03:00:13 +00:00
rtm
e4bcd2a3a9
wdir now uses readi/writei
2006-08-13 20:06:42 +00:00
rtm
17e3cf15ba
fix iget() bug that allocated in-use inode[] entries
2006-08-13 15:51:58 +00:00
kaashoek
8abe2bcf15
don't print unallocated dir entries
2006-08-13 15:05:58 +00:00
rtm
211ff0c67e
namei returns locked parent dir inode for create / unlink
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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
2006-08-13 12:22:44 +00:00
kaashoek
c372e8dc34
zero freed blocks
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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?
2006-08-13 05:28:04 +00:00
rtm
9e5970d596
link()
2006-08-13 02:12:44 +00:00
rtm
05e975511b
zero out all of dirent.name when creating
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don't increase length of directory
2006-08-12 22:44:26 +00:00
rtm
cd93074e5b
LRU disk cache replacement
2006-08-12 22:34:13 +00:00
kaashoek
22bac2cb9d
free inode only when noone is holding a pointer to it. should fix open-unlink-
...
read problem, but untested
2006-08-12 22:03:01 +00:00
rtm
14938f9392
buffer cache, fifo replacement
2006-08-12 17:17:35 +00:00
rtm
7ce01cf9be
mknod set nlink = 1
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usertests for concurrent create/delete, and read() after unlink()
2006-08-12 16:47:48 +00:00
rtm
4357207237
fix getblk to actually lock the block
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no more cons_put system calls
usertests tests two processes writing files
2006-08-12 11:38:57 +00:00
kaashoek
1f544842ce
fstat
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primitive ls
2006-08-12 04:33:50 +00:00
kaashoek
0633b9715e
unlink,mknod,create with multi-component pathnames should work now
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remove console init code from userfs
2006-08-12 01:25:45 +00:00
kaashoek
24437cd554
fix deadlock---iput(dp) asap
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working unlink, but doesn't free dir blocks that become empty
remove out-of-date comment in ioapic
2006-08-11 18:18:38 +00:00
rtm
17a856577f
init creates console, opens 0/1/2, runs sh
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sh accepts 0-argument commands (like userfs)
reads from console
2006-08-11 13:55:18 +00:00
rtm
5be0039ce9
interrupts could be recursive since lapic_eoi() called before rti
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so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()
2006-08-10 22:08:14 +00:00
rtm
8a8be1b8c3
low-level keyboard input (not hooked up to /dev yet)
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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...
2006-08-10 02:07:10 +00:00
kaashoek
28d9ef04dd
printf
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convert userfs to use printf
bfree
ifree
writei
start on unlink
2006-08-10 01:28:57 +00:00
kaashoek
939f9edeac
iread for T_DEV
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O_RDWR, etc.
create file
2006-08-09 19:25:20 +00:00
kaashoek
2601de0032
fix test program: don't close before writing
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set fd to writeable on open for write
2006-08-09 17:25:10 +00:00
kaashoek
6fa5ffb56f
devsw
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checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works
2006-08-09 16:04:04 +00:00
kaashoek
6c0e444fcd
oops, update directory inode too
2006-08-09 01:19:48 +00:00
kaashoek
241113985f
block bitmap
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balloc
2006-08-09 01:09:36 +00:00
rtm
0e84a0ec6e
fix race in holding() check in acquire()
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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
2006-08-08 19:58:06 +00:00
kaashoek
e8d11c2e84
mknod,ialloc,iupdate
2006-08-08 18:07:37 +00:00
kaashoek
104207726b
bwrite
2006-08-07 01:38:46 +00:00
kaashoek
8ec6530fee
generalize async read to support write too
2006-08-06 20:28:15 +00:00
kaashoek
366189214e
nit
2006-08-04 18:23:23 +00:00
kaashoek
c8b29f6d03
better interrupt plan---this one appears to work
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ioapic
2006-08-04 18:12:31 +00:00
rtm
32630628a9
open()
2006-07-29 09:35:02 +00:00
kaashoek
e46fb46fcf
acquire+release ide_lock in ide_intr
2006-07-29 01:20:15 +00:00
rtm
8455980b27
exec arguments
2006-07-28 22:33:07 +00:00
rtm
c59361f143
primitive exec
2006-07-27 21:10:00 +00:00
