ilo-pona/xv6-65oo2
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88 commits

Author SHA1 Message Date
Frans Kaashoek 74c82bc158 nits 2010-07-02 17:45:37 -04:00
Frans Kaashoek 40889627ba Initial version of single-cpu xv6 with page tables 2010-07-02 14:51:53 -04:00
Russ Cox 48755214c9 assorted fixes: 
* rename c/cp to cpu/proc
 * rename cpu.context to cpu.scheduler
 * fix some comments
 * formatting for printout
 2009-08-30 23:02:08 -07:00
rsc 5516be1fed spaces around else for rtm 2007-08-28 18:37:41 +00:00
rsc e4d6a21165 more consistent spacing 2007-08-28 18:32:08 +00:00
rsc 773159fbee make code match comment 2007-08-27 23:53:50 +00:00
rsc 3a2310f746 make code match comment 2007-08-27 23:53:17 +00:00
rsc 558ab49f13 delete unnecessary #include lines 2007-08-27 23:26:33 +00:00
rsc efc12b8e61 Replace yield system call with sleep. 2007-08-27 13:34:35 +00:00
rsc 97ac612fb1 nits 2007-08-24 20:28:08 +00:00
rsc 4bcd0f6a77 Add yield system call, for zombie test program (bad idea?). 2007-08-24 20:04:53 +00:00
rtm 902b13f5d6 simplify ide queuing 
nits in comments
 2007-08-24 19:32:36 +00:00
rsc f32f3638f4 Various cleanup: 
- Got rid of dummy proc[0].  Now proc[0] is init.
 - Added initcode.S to exec /init, so that /init is
   just a regular binary.
 - Moved exec out of sysfile to exec.c
 - Moved code dealing with fs guts (like struct inode)
   from sysfile.c to fs.c.  Code dealing with system call
   arguments stays in sysfile.c
 - Refactored directory routines in fs.c; should be simpler.
 - Changed iget to return *unlocked* inode structure.
   This solves the lookup-then-use race in namei
   without introducing deadlocks.
   It also enabled getting rid of the dummy proc[0].
 2007-08-21 19:22:08 +00:00
rsc f1f8dd91bc formatting 2007-08-14 18:42:34 +00:00
rsc b6095304b7 Make cp a magic symbol. 2007-08-10 16:37:27 +00:00
rsc 9583b476bf try to use cp only for curproc[cpu()] 2007-08-09 17:32:40 +00:00
rsc 453c6a65a2 convert syscall dispatch to table 2007-08-08 09:41:21 +00:00
rsc 224f6598c1 refactor syscall code 2006-09-07 14:13:26 +00:00
rsc 05a7bbe08b comment fixes 2006-09-07 13:07:52 +00:00
rsc db8fb62e4d for vs while 2006-09-06 18:47:51 +00:00
rsc 9936bffa45 fd.* -> file.* 2006-09-06 18:40:28 +00:00
rsc 2685309fb4 split syscall.c into sysfile.c and sysproc.c 2006-09-06 18:19:11 +00:00
rsc d4c64e5d43 writeable => writable 2006-09-06 18:06:04 +00:00
rsc f552738889 no /* */ comments 2006-09-06 17:50:20 +00:00
rsc 9e9bcaf143 standardize various * conventions 2006-09-06 17:27:19 +00:00
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