Commit graph

63 commits

Author SHA1 Message Date
rtm 2aa4c3bc29 complain if no disk 1
lots of cleanup
2006-08-30 18:55:06 +00:00
rtm 7a37578e9e clear killed flag in exit
idecref cwd in exit
2006-08-29 19:59:52 +00:00
rtm dfcc5b997c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
rtm 3b95801add i broke sbrk, fix it 2006-08-29 17:01:40 +00:00
rtm 2b19190c13 clean up stale error checks and panics
delete unused functions
a few comments
2006-08-29 14:45:45 +00:00
rtm 03c70cc2e6 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
2006-08-26 16:31:05 +00:00
rtm a6c28c9779 mkdir check error from mknod
chdir return -1 if target not a dir
2006-08-26 15:06:59 +00:00
rtm 5051da6de3 inode addrs[NDIRECT] -> NADDRS
fix race in mknod / creat
use last component in dirent in mknod, not path
2006-08-25 01:11:30 +00:00
kaashoek ea2909b6b5 user-level malloc (untested)
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
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
renumber system calls (run gmake clean!)
skeleton for dup system call
2006-08-20 03:08:54 +00:00
kaashoek 8787cd01df chdir
cd in shell
nits in mkdir, ls, etc.
2006-08-19 23:41:34 +00:00
kaashoek bdb6643303 set size for directories correctly in wdir and mkfs
mkdir
ls shows stat info for each dir entry
2006-08-14 14:13:52 +00:00
kaashoek d15f0d1033 start on mkdir
stat
2006-08-14 03:00:13 +00:00
rtm 17e3cf15ba fix iget() bug that allocated in-use inode[] entries 2006-08-13 15:51:58 +00:00
rtm 211ff0c67e 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
2006-08-13 12:22:44 +00:00
rtm 9e5970d596 link() 2006-08-13 02:12:44 +00:00
rtm 4357207237 fix getblk to actually lock the block
no more cons_put system calls
usertests tests two processes writing files
2006-08-12 11:38:57 +00:00
kaashoek 1f544842ce fstat
primitive ls
2006-08-12 04:33:50 +00:00
kaashoek 0633b9715e unlink,mknod,create with multi-component pathnames should work now
remove console init code from userfs
2006-08-12 01:25:45 +00:00
kaashoek 24437cd554 fix deadlock---iput(dp) asap
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
sh accepts 0-argument commands (like userfs)
reads from console
2006-08-11 13:55:18 +00:00
rtm 8a8be1b8c3 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...
2006-08-10 02:07:10 +00:00
kaashoek 28d9ef04dd printf
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
O_RDWR, etc.
create file
2006-08-09 19:25:20 +00:00
kaashoek 2601de0032 fix test program: don't close before writing
set fd to writeable on open for write
2006-08-09 17:25:10 +00:00
kaashoek 6fa5ffb56f devsw
checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works
2006-08-09 16:04:04 +00:00
rtm 0e84a0ec6e 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
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 c8b29f6d03 better interrupt plan---this one appears to work
ioapic
2006-08-04 18:12:31 +00:00
rtm 32630628a9 open() 2006-07-29 09:35:02 +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
rtm 9d3fb67141 namei 2006-07-21 22:10:40 +00:00
rtm 11a9947f1a 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
2006-07-21 13:18:04 +00:00
rtm 2927081628 uint32_t -> uint &c 2006-07-20 09:07:53 +00:00
rtm bd228a8156 prevent longjmp / forkret from writing over tf->edi 2006-07-18 19:22:37 +00:00
rsc 0dd4253747 add ide_lock for sleep 2006-07-17 05:00:25 +00:00
rsc b5ee516575 add uint and standardize on typedefs instead of unsigned 2006-07-17 01:52:13 +00:00
rsc ee9c7f3bfc goodbye PushRegs 2006-07-17 01:36:39 +00:00
rsc ef2bd07ae4 standardize on not using foo_ prefix in struct foo 2006-07-16 15:41:47 +00:00
rsc f3d290220f add cons_puts for atomic (readable) output 2006-07-16 15:38:00 +00:00
rsc 856e1fc1ad 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.
2006-07-16 01:47:40 +00:00
rsc 65bd8e139a New scheduler.
Removed cli and sti stack in favor of tracking
number of locks held on each CPU and explicit
conditionals in spinlock.c.
2006-07-16 01:15:28 +00:00
rsc 643b122b4a move everything having to do with proc_table_lock into proc.c 2006-07-15 17:24:54 +00:00
rsc 67a9314ad1 Add void for ANSI C 2006-07-15 17:17:00 +00:00
rsc 7f419a0d29 Change fetchint, fetcharg, and putint to return -1 on error, 0 on success.
They had been returning 0 on error, 1 on success, but all the callers
were checking for return value < 0.
2006-07-15 17:13:56 +00:00
rtm 46bbd72f3e no more recursive locks
wakeup1() assumes you hold proc_table_lock
sleep(chan, lock) provides atomic sleep-and-release to wait for condition
ugly code in swtch/scheduler to implement new sleep
fix lots of bugs in pipes, wait, and exit
fix bugs if timer interrupt goes off in schedule()
console locks per line, not per byte
2006-07-15 12:03:57 +00:00