Austin Clements
9d59eb0151
Make fetchint and fetchstr use proc instead of taking a struct proc
...
Previously, these were inconsistent: they used their struct proc
argument for bounds checking, but always copied the argument from the
current address space (and hence the current process). Drop the
struct proc argument and always use the current proc.
Suggested by Carmi Merimovich.
2012-02-17 23:20:13 -05:00
Frans Kaashoek
d10d324e79
Remove sys_init syscall
...
Invoke initlog from forkret on first user process
2011-08-22 20:05:15 -04:00
Robert Morris
2e59046362
log write() data
...
usertest for big write()s
push begin_trans/commit_trans down into syscalls
2011-08-12 09:25:39 -04:00
Frans Kaashoek
9aa0337dc1
Map kernel high
...
Very important to give qemu memory through PHYSTOP :(
2011-07-29 07:31:27 -04:00
Frans Kaashoek
13a96baefc
Dirt simple logging
...
Passes usertests and stressfs
Seems to recover correctly in a number of simple cases
2011-07-27 20:35:46 -04:00
Russ Cox
c5f5387351
fixes from Peter Froehlich
2011-02-28 09:32:20 -05:00
Russ Cox
1a81e38b17
make new code like old code
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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
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
Robert Morris
789b508d53
uptime() sys call for benchmarking
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increase PHYSTOP
2010-08-11 14:34:45 -04:00
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
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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
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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
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
