95692c4a8c
Remove left-over from some logging plan making complete syscalls atomic
...
0 is not a system call (thanks to Peter Froehlich)
2012-08-22 20:28:58 -04:00
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
d10d324e79
Remove sys_init syscall
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Invoke initlog from forkret on first user process
2011-08-22 20:05:15 -04:00
2e59046362
log write() data
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usertest for big write()s
push begin_trans/commit_trans down into syscalls
2011-08-12 09:25:39 -04:00
9aa0337dc1
Map kernel high
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Very important to give qemu memory through PHYSTOP :(
2011-07-29 07:31:27 -04:00
13a96baefc
Dirt simple logging
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Passes usertests and stressfs
Seems to recover correctly in a number of simple cases
2011-07-27 20:35:46 -04:00
c5f5387351
fixes from Peter Froehlich
2011-02-28 09:32:20 -05:00
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
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
789b508d53
uptime() sys call for benchmarking
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increase PHYSTOP
2010-08-11 14:34:45 -04:00
74c82bc158
nits
2010-07-02 17:45:37 -04:00
40889627ba
Initial version of single-cpu xv6 with page tables
2010-07-02 14:51:53 -04:00
48755214c9
assorted fixes:
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* 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
5516be1fed
spaces around else for rtm
2007-08-28 18:37:41 +00:00
e4d6a21165
more consistent spacing
2007-08-28 18:32:08 +00:00
773159fbee
make code match comment
2007-08-27 23:53:50 +00:00
3a2310f746
make code match comment
2007-08-27 23:53:17 +00:00
558ab49f13
delete unnecessary #include lines
2007-08-27 23:26:33 +00:00
efc12b8e61
Replace yield system call with sleep.
2007-08-27 13:34:35 +00:00
97ac612fb1
nits
2007-08-24 20:28:08 +00:00
4bcd0f6a77
Add yield system call, for zombie test program (bad idea?).
2007-08-24 20:04:53 +00:00
902b13f5d6
simplify ide queuing
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nits in comments
2007-08-24 19:32:36 +00:00
f32f3638f4
Various cleanup:
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- 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
f1f8dd91bc
formatting
2007-08-14 18:42:34 +00:00
b6095304b7
Make cp a magic symbol.
2007-08-10 16:37:27 +00:00
9583b476bf
try to use cp only for curproc[cpu()]
2007-08-09 17:32:40 +00:00
453c6a65a2
convert syscall dispatch to table
2007-08-08 09:41:21 +00:00
224f6598c1
refactor syscall code
2006-09-07 14:13:26 +00:00
05a7bbe08b
comment fixes
2006-09-07 13:07:52 +00:00
db8fb62e4d
for vs while
2006-09-06 18:47:51 +00:00
9936bffa45
fd.* -> file.*
2006-09-06 18:40:28 +00:00
2685309fb4
split syscall.c into sysfile.c and sysproc.c
2006-09-06 18:19:11 +00:00
d4c64e5d43
writeable => writable
2006-09-06 18:06:04 +00:00
f552738889
no /* */ comments
2006-09-06 17:50:20 +00:00
9e9bcaf143
standardize various * conventions
2006-09-06 17:27:19 +00:00
2aa4c3bc29
complain if no disk 1
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lots of cleanup
2006-08-30 18:55:06 +00:00
7a37578e9e
clear killed flag in exit
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idecref cwd in exit
2006-08-29 19:59:52 +00:00
dfcc5b997c
prune unneeded panics and debug output
2006-08-29 19:06:37 +00:00
3b95801add
i broke sbrk, fix it
2006-08-29 17:01:40 +00:00
2b19190c13
clean up stale error checks and panics
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delete unused functions
a few comments
2006-08-29 14:45:45 +00:00
03c70cc2e6
consistently ignore more than 14 chars in path component
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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
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
5051da6de3
inode addrs[NDIRECT] -> NADDRS
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fix race in mknod / creat
use last component in dirent in mknod, not path
2006-08-25 01:11:30 +00:00
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
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
f18ab5c04e
compiling, but untested dup
2006-08-20 03:33:01 +00:00
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
8787cd01df
chdir
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cd in shell
nits in mkdir, ls, etc.
2006-08-19 23:41:34 +00:00
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
d15f0d1033
start on mkdir
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stat
2006-08-14 03:00:13 +00:00
Frans Kaashoek
Austin Clements
Frans Kaashoek
Robert Morris
Russ Cox
Robert Morris
Frans Kaashoek
rsc
rtm
kaashoek