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Devi Nivas Git - cs3210-lab1.git/log
Robert Morris [Sun, 19 Sep 2010 17:47:52 +0000 (13:47 -0400)]
my comment is wrong, exec handles BSS fine
Robert Morris [Sun, 19 Sep 2010 11:18:42 +0000 (07:18 -0400)]
exec questions
Robert Morris [Mon, 13 Sep 2010 19:34:44 +0000 (15:34 -0400)]
change some comments, maybe more informative
delete most comments from bootother.S (since copy of bootasm.S)
ksegment() -> seginit()
move more stuff from main() to mainc()
Austin Clements [Fri, 3 Sep 2010 19:47:28 +0000 (15:47 -0400)]
Rev 4
Austin Clements [Thu, 2 Sep 2010 23:03:48 +0000 (19:03 -0400)]
Update example in TOC footer
Austin Clements [Thu, 2 Sep 2010 23:01:25 +0000 (19:01 -0400)]
Consistent style in defs.h
Austin Clements [Thu, 2 Sep 2010 22:54:50 +0000 (18:54 -0400)]
Get consoleintr back on one page
Austin Clements [Thu, 2 Sep 2010 22:50:49 +0000 (18:50 -0400)]
Get cgaputc and consputc back on the same page
Austin Clements [Thu, 2 Sep 2010 22:36:06 +0000 (18:36 -0400)]
Get rid of the blank page in picirq.c. It misaligs things now.
Austin Clements [Thu, 2 Sep 2010 22:28:36 +0000 (18:28 -0400)]
Simplify allocuvm/deallocuvm to operate in a contiguous memory model. This makes their interface match up better with proc->sz and also simplifies the callers (it even gets the main body of exec on one page).
Austin Clements [Thu, 2 Sep 2010 21:03:19 +0000 (17:03 -0400)]
Nits
Austin Clements [Thu, 2 Sep 2010 20:39:55 +0000 (16:39 -0400)]
Comment inituvm and loaduvm
Austin Clements [Thu, 2 Sep 2010 20:36:38 +0000 (16:36 -0400)]
Fix comment capitalization
Austin Clements [Thu, 2 Sep 2010 20:23:15 +0000 (16:23 -0400)]
Rearrange vm.c so it's in logical order and prints nicely. Shorten a few functions in uninteresting ways to make them fit.
Austin Clements [Thu, 2 Sep 2010 19:37:05 +0000 (15:37 -0400)]
Simplify inituvm and userinit by assuming initcode fits on a page
Austin Clements [Thu, 2 Sep 2010 19:18:19 +0000 (15:18 -0400)]
Simplify freevm using deallocuvm
Austin Clements [Thu, 2 Sep 2010 18:30:06 +0000 (14:30 -0400)]
Oops. Broke the build when I rearranged proc.c
Austin Clements [Thu, 2 Sep 2010 18:08:45 +0000 (14:08 -0400)]
Remove unused nop_pause function.
Austin Clements [Thu, 2 Sep 2010 08:15:17 +0000 (04:15 -0400)]
Rearrange proc.h and proc.c to get our action-packed spreads back (mostly). They also make sense in this order, so it's not just for page layout.
Austin Clements [Thu, 2 Sep 2010 08:06:35 +0000 (04:06 -0400)]
Re-re-arrange bootasm and bootother. We can't get bootasm and bootmain on the same page, but this will make them easier to flip between.
Austin Clements [Thu, 2 Sep 2010 08:03:42 +0000 (04:03 -0400)]
I totally misunderstood the even/odd spec. Add some docs, remove my 'left+' hack, and orthogonalize left/right versus even/odd so you can specify them independently.
Austin Clements [Thu, 2 Sep 2010 07:57:20 +0000 (03:57 -0400)]
Specify in runoff.spec which side sheet 1 is on, since it keeps changing
Austin Clements [Thu, 2 Sep 2010 07:56:36 +0000 (03:56 -0400)]
Pack five columns into cross-ref. This saves us an entire page and fixes the single dangling line.
Austin Clements [Thu, 2 Sep 2010 07:36:39 +0000 (03:36 -0400)]
Oops, missed a comment about the stack guard
Austin Clements [Thu, 2 Sep 2010 07:25:33 +0000 (03:25 -0400)]
Add Nickolai and myself and scrunch two lines out of the text elsewhere
Austin Clements [Wed, 1 Sep 2010 21:14:58 +0000 (17:14 -0400)]
Slight simplification of copyuvm. We could simplify other things now that processes are contiguous, but we'd have to think harder about the error paths.
Austin Clements [Wed, 1 Sep 2010 20:46:37 +0000 (16:46 -0400)]
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.
Austin Clements [Wed, 1 Sep 2010 06:14:35 +0000 (02:14 -0400)]
Make it easy to change the number of CPUs
Austin Clements [Wed, 1 Sep 2010 04:41:25 +0000 (00:41 -0400)]
Space police
Austin Clements [Wed, 1 Sep 2010 04:32:27 +0000 (00:32 -0400)]
Tab police
Austin Clements [Wed, 1 Sep 2010 04:31:04 +0000 (00:31 -0400)]
Merge branch 'master' of git+ssh://am.lcs/home/am0/6.828/xv6
Austin Clements [Wed, 1 Sep 2010 04:27:12 +0000 (00:27 -0400)]
Fix similar leak in copyuvm
Austin Clements [Wed, 1 Sep 2010 01:49:49 +0000 (21:49 -0400)]
Cleanup if allocuvm fails to alloc. Add a test.
Robert Morris [Tue, 31 Aug 2010 23:21:52 +0000 (19:21 -0400)]
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
Robert Morris [Tue, 31 Aug 2010 23:21:33 +0000 (19:21 -0400)]
oops. last minute simplicifaction to kalloc().
Austin Clements [Tue, 31 Aug 2010 21:52:03 +0000 (17:52 -0400)]
Page break kalloc.c
Austin Clements [Tue, 31 Aug 2010 21:49:47 +0000 (17:49 -0400)]
Our proc.c alignment is perfect. Since ksegment/usegment went away, we get a column back, so we get our two action-packed spreads.
Austin Clements [Tue, 31 Aug 2010 21:46:30 +0000 (17:46 -0400)]
Make it possible to express half-page preferences
Austin Clements [Tue, 31 Aug 2010 21:40:21 +0000 (17:40 -0400)]
Got the meat of spinlocks on one spread
Austin Clements [Tue, 31 Aug 2010 21:35:17 +0000 (17:35 -0400)]
Swap bootmain.c and bootother.S. This puts the whole boot process on one spread, though it separates the two asm files.
Austin Clements [Tue, 31 Aug 2010 21:33:04 +0000 (17:33 -0400)]
Sheet 1 is a right page now because of the (much) longer cross-ref
Austin Clements [Tue, 31 Aug 2010 21:30:31 +0000 (17:30 -0400)]
print depends on runoff.spec
Austin Clements [Tue, 31 Aug 2010 21:07:54 +0000 (17:07 -0400)]
We don't use lesp/lebp and using them at all from C would be fraught with peril. Keep resp/rebp, but fix their code style.
Austin Clements [Tue, 31 Aug 2010 20:54:50 +0000 (16:54 -0400)]
Page breaking of mmu.h
Austin Clements [Tue, 31 Aug 2010 20:47:50 +0000 (16:47 -0400)]
Start PDE defs on new page
Austin Clements [Tue, 31 Aug 2010 20:43:41 +0000 (16:43 -0400)]
Follow xv6 code style. Also fixes indexing for these functions
Austin Clements [Tue, 31 Aug 2010 20:42:05 +0000 (16:42 -0400)]
Rearrange for better page breaking
Austin Clements [Tue, 31 Aug 2010 20:26:08 +0000 (16:26 -0400)]
Fix too-long lines
Austin Clements [Tue, 31 Aug 2010 20:18:44 +0000 (16:18 -0400)]
Rebalance TOC
Austin Clements [Tue, 31 Aug 2010 20:13:20 +0000 (16:13 -0400)]
Acknowledge patches
Austin Clements [Tue, 31 Aug 2010 20:01:38 +0000 (16:01 -0400)]
Hopefully get the printf size spec right, regardless of compiler.
Robert Morris [Tue, 31 Aug 2010 19:39:25 +0000 (15:39 -0400)]
no more pminit, or ELF header at 0x10000
kinit() knows about end and PHYSTOP
map all of kernel read/write (rather than r/o instructions)
thanks, austin
Austin Clements [Tue, 31 Aug 2010 19:11:10 +0000 (15:11 -0400)]
mkfs must be compiled 32-bit. Fix mkfs warnings
Austin Clements [Tue, 31 Aug 2010 19:05:27 +0000 (15:05 -0400)]
Infer qemu path, just like in JOS
Austin Clements [Tue, 31 Aug 2010 19:01:26 +0000 (15:01 -0400)]
Infer TOOLPREFIX, just like in JOS
Robert Morris [Tue, 31 Aug 2010 16:54:47 +0000 (12:54 -0400)]
kalloc/kfree now only a page at a time
do not keep sorted contiguous free list
Robert Morris [Mon, 30 Aug 2010 19:30:53 +0000 (15:30 -0400)]
Merge remote branch 'origin/master' into page
Austin Clements [Mon, 30 Aug 2010 16:22:08 +0000 (12:22 -0400)]
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.
Robert Morris [Mon, 30 Aug 2010 15:17:54 +0000 (11:17 -0400)]
oops ended up with 2x vm.c
Robert Morris [Mon, 30 Aug 2010 14:23:27 +0000 (10:23 -0400)]
Merge remote branch 'origin/page' into page
Robert Morris [Mon, 30 Aug 2010 14:13:49 +0000 (10:13 -0400)]
xx
Robert Morris [Mon, 30 Aug 2010 11:26:54 +0000 (07:26 -0400)]
no more xv6.pdf .ps
Robert Morris [Mon, 30 Aug 2010 10:48:48 +0000 (06:48 -0400)]
we don't need CR0_WP
Robert Morris [Mon, 30 Aug 2010 10:38:58 +0000 (06:38 -0400)]
set only PG and WP in vminit; the rest don't seem to be needed and are confusing
Frans Kaashoek [Thu, 26 Aug 2010 12:03:18 +0000 (08:03 -0400)]
Merge commit 'origin/page' into page
Frans Kaashoek [Thu, 26 Aug 2010 11:51:08 +0000 (07:51 -0400)]
add vm.c
Robert Morris [Wed, 11 Aug 2010 18:34:45 +0000 (14:34 -0400)]
uptime() sys call for benchmarking
increase PHYSTOP
Robert Morris [Tue, 10 Aug 2010 21:08:41 +0000 (17:08 -0400)]
allow sbrk(-x) to de-allocate user memory
Robert Morris [Fri, 6 Aug 2010 15:12:18 +0000 (11:12 -0400)]
fix corner cases in exec of ELF
put an invalid page below the stack
have fork() handle invalid pages
Robert Morris [Fri, 6 Aug 2010 01:16:55 +0000 (21:16 -0400)]
add some comments
find out the hard way why user and kernel must have separate segment descriptors
Robert Morris [Thu, 5 Aug 2010 20:00:59 +0000 (16:00 -0400)]
remove some unused vm #defines
fix corner cases with alignment when mapping kernel ELF file
Robert Morris [Thu, 5 Aug 2010 18:15:03 +0000 (14:15 -0400)]
move jkstack to main.c
replace jstack with asm()s
Robert Morris [Thu, 5 Aug 2010 16:10:54 +0000 (12:10 -0400)]
fix allocuvm() to handle sbrk() with non-page-granularity argument
(maybe this never worked, but it works now)
Frans Kaashoek [Wed, 28 Jul 2010 18:38:05 +0000 (14:38 -0400)]
kill TLB shoot down code
Frans Kaashoek [Mon, 26 Jul 2010 12:10:02 +0000 (08:10 -0400)]
more cleanup
Frans Kaashoek [Mon, 26 Jul 2010 00:30:21 +0000 (20:30 -0400)]
some cleanup
Frans Kaashoek [Fri, 23 Jul 2010 16:52:50 +0000 (12:52 -0400)]
a few nits
passes all tests on two-processor smp
Frans Kaashoek [Fri, 23 Jul 2010 16:52:35 +0000 (12:52 -0400)]
oops, vm.c
Frans Kaashoek [Fri, 23 Jul 2010 11:41:13 +0000 (07:41 -0400)]
Checkpoint page-table version for SMP
Includes code for TLB shootdown (which actually seems unnecessary for xv6)
Frans Kaashoek [Fri, 2 Jul 2010 21:45:37 +0000 (17:45 -0400)]
nits
Frans Kaashoek [Fri, 2 Jul 2010 18:51:53 +0000 (14:51 -0400)]
Initial version of single-cpu xv6 with page tables
Russ Cox [Sat, 6 Feb 2010 21:08:06 +0000 (16:08 -0500)]
another rev2 -> rev3
Russ Cox [Sat, 6 Feb 2010 20:55:09 +0000 (12:55 -0800)]
point at rev3
Frans Kaashoek [Tue, 1 Dec 2009 19:07:12 +0000 (14:07 -0500)]
8ae0 instead of 8e00, thanks yandong
Austin Clements [Mon, 23 Nov 2009 22:50:58 +0000 (17:50 -0500)]
Add stressfs and gdbutil to dist
Austin Clements [Mon, 23 Nov 2009 22:47:57 +0000 (17:47 -0500)]
GDB utilities
Austin Clements [Mon, 23 Nov 2009 22:27:26 +0000 (17:27 -0500)]
Add the test we used in lecture to creash the IDE system when the
locks were moved around.
Austin Clements [Sun, 25 Oct 2009 01:31:08 +0000 (21:31 -0400)]
Merge branch 'master' of git+ssh://am.lcs/home/am0/6.828/xv6
Austin Clements [Sun, 25 Oct 2009 01:31:01 +0000 (21:31 -0400)]
Comment typo
Frans Kaashoek [Wed, 7 Oct 2009 21:42:25 +0000 (17:42 -0400)]
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
Frans Kaashoek [Wed, 7 Oct 2009 21:42:14 +0000 (17:42 -0400)]
fine-tune comment
Frans Kaashoek [Wed, 7 Oct 2009 19:31:55 +0000 (15:31 -0400)]
fine tune comment
Austin Clements [Wed, 7 Oct 2009 17:06:55 +0000 (13:06 -0400)]
Remove memcpy prototypes at Russ' request to prevent code from calling
memcpy directly.
Austin Clements [Wed, 7 Oct 2009 16:05:56 +0000 (12:05 -0400)]
Provide memcpy for compatibility with older versions of gcc
Austin Clements [Mon, 5 Oct 2009 17:20:23 +0000 (13:20 -0400)]
Record debug info for assmebly code
Austin Clements [Thu, 1 Oct 2009 02:32:50 +0000 (22:32 -0400)]
Handle backspace on serial input and output better. Better solutions are welcome.
Austin Clements [Thu, 1 Oct 2009 02:09:48 +0000 (22:09 -0400)]
Be consistent with JOS make targets
Austin Clements [Mon, 21 Sep 2009 03:09:59 +0000 (23:09 -0400)]
Hack to make newlines on the serial port work
Austin Clements [Mon, 21 Sep 2009 03:08:36 +0000 (23:08 -0400)]
Use the symbol file
Austin Clements [Mon, 21 Sep 2009 03:07:59 +0000 (23:07 -0400)]
xv6 runs the console on the serial port, not the parallel port