Bricoles/xv6-riscv
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151 commits

Author SHA1 Message Date
Frans Kaashoek
b23d8329e7 Allow gas to use / as divide (instead of comment) 
Maybe not necessary, but don't want to waste time figuring this out again
 2011-08-09 16:09:15 -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
Austin Clements
97657d703f Add -fno-omit-frame-pointer to compile flags. 
At some point between gcc 4.4 and 4.6, omitting the frame pointer
became default if any -O is specified.  getcallerpcs relies on the
frame pointer, so bring it back.
 2011-06-24 14:22:19 -04:00
Russ Cox
cf4b1ad90b xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
Russ Cox
89bfdd4db1 multiboot support and memory-only (no disk) kernel 2011-01-11 13:27:45 -05:00
Austin Clements
124fe7e457 Rev 4 2010-09-03 15:47:28 -04:00
Austin Clements
41c4bbb505 Make it easy to change the number of CPUs 2010-09-01 02:14:35 -04:00
Austin Clements
51e2a7b324 print depends on runoff.spec 2010-08-31 17:30:31 -04:00
Austin Clements
880ee18ab1 mkfs must be compiled 32-bit. Fix mkfs warnings 2010-08-31 15:11:10 -04:00
Austin Clements
1e8035be53 Infer qemu path, just like in JOS 2010-08-31 15:05:27 -04:00
Austin Clements
0f0456ec53 Infer TOOLPREFIX, just like in JOS 2010-08-31 15:01:26 -04:00
Robert Morris
81b30b14d6 Merge remote branch 'origin/master' into page 2010-08-30 15:30:53 -04:00
Austin Clements
fe4623b99c Fix for gdbstub argument change in qemu 0.11. Rename qemu-gdb-nox target to qemu-nox-gdb because you frequently want to add the gdb part, but rarely the nox part. 2010-08-30 12:22:08 -04:00
Robert Morris
eb18645f17 fix allocuvm() to handle sbrk() with non-page-granularity argument 
(maybe this never worked, but it works now)
 2010-08-05 12:10:54 -04:00
Frans Kaashoek
40889627ba Initial version of single-cpu xv6 with page tables 2010-07-02 14:51:53 -04:00
Austin Clements
5e710e688e Add stressfs and gdbutil to dist 2009-11-23 17:50:58 -05:00
Austin Clements
f4c12f116d Add the test we used in lecture to creash the IDE system when the 
locks were moved around.
 2009-11-23 17:27:26 -05:00
Austin Clements
77a9aa55cd Record debug info for assmebly code 2009-10-05 13:20:23 -04:00
Austin Clements
bab819ed8d Be consistent with JOS make targets 2009-09-30 22:09:48 -04:00
Austin Clements
01396b3a87 xv6 runs the console on the serial port, not the parallel port 2009-09-20 23:07:59 -04:00
Silas Boyd-Wickizer
074ac7ccd4 add .gdbinit.tmpl to dist 2009-09-15 19:15:59 -04:00
Silas Boyd-Wickizer
01b667e45d rev3 2009-09-15 17:21:14 -04:00
Silas Boyd-Wickizer
568bbae801 qemu-gdb target and script 2009-09-15 17:15:36 -04:00
Russ Cox
7e0cc8e36e another attempt at cpu-local variables. 
this time do it ourselves instead of piggybacking on TLS.
add -fno-pic to Makefile; pic code breaks our fake TLS.
 2009-09-02 10:07:59 -07:00
Nickolai Zeldovich
45a9782636 fix bootblock build with gcc 4.4 2009-09-02 02:03:46 -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
Russ Cox
0aef891495 shuffle and tweak for formatting. 
pdf has very good page breaks now.
would be a good copy for fall 2009.
 2009-08-08 01:07:30 -07:00
rsc
19333efb9e Some proc cleanup, moving some of copyproc into allocproc. 
Also, an experiment: use "thread-local" storage for c and cp
instead of the #define macro for curproc[cpu()].
 2009-05-31 00:28:45 +00:00
rtm
adcd16c3f7 restore std toolprefix 2008-09-11 10:22:01 +00:00
rtm
4651d04ad1 omit *.d from tar file 2008-09-11 10:20:40 +00:00
rsc
1808b2f1b3 now rev2 2008-08-20 18:00:35 +00:00
nelhage
d7a90d3b5c This should fix building on FreeBSD 2007-09-19 23:49:52 +00:00
nelhage
6197c04208 Fix compilation on 64-bit machines (thanks to andersk for patch) 2007-09-18 00:41:34 +00:00
rsc
e51ae8a272 do not toss .ps 2007-08-30 18:33:48 +00:00
rsc
05109382d6 tweak 2007-08-30 14:12:19 +00:00
rsc
68a2d5373d match README 2007-08-28 19:30:29 +00:00
rsc
e3f271e880 oops 2007-08-28 17:48:44 +00:00
rsc
818fc0125e replace setjmp/longjmp with swtch 2007-08-28 12:48:33 +00:00
rsc
2d7d2b18cf rename 8253pit -> timer 2007-08-28 04:41:20 +00:00
rsc
1a89baa7c6 add grep; add lost echo 2007-08-28 04:26:34 +00:00
rsc
76f09d7dd0 clean up Makefile; add wc 2007-08-28 04:20:40 +00:00
rsc
f0d11fea82 Move keyboard code into kbd.c; add backspace handling. 2007-08-28 03:28:13 +00:00
rsc
19b42cc078 Rename main0 to main. 2007-08-27 23:32:16 +00:00
rsc
e0e7d07e5a test that fork fails gracefully 2007-08-24 20:20:23 +00:00
rsc
6bf2e5c898 add ln 2007-08-22 05:54:55 +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
e0924827ee add kill 2007-08-08 08:50:23 +00:00
rsc
af689dcf7e oops 2007-08-08 08:40:08 +00:00
rsc
349ee132f0 add zombie program 2007-08-08 08:38:55 +00:00