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Devi Nivas Git - cs3210-lab1.git/log
David Devecsery [Fri, 28 Aug 2020 13:20:09 +0000 (09:20 -0400)]
Fix minor bug in mkfs, causes compilation error on release mode
Devecsery, David [Thu, 27 Aug 2020 13:45:19 +0000 (09:45 -0400)]
Update lab1.md
Added extended memory clause to kernel modifications.
Devecsery, David [Tue, 25 Aug 2020 19:32:46 +0000 (15:32 -0400)]
Update lab1.md
David Devecsery [Sun, 23 Aug 2020 22:38:06 +0000 (18:38 -0400)]
shrink binary size
David Devecsery [Sun, 23 Aug 2020 22:36:31 +0000 (18:36 -0400)]
Reduced lab1 bootblock code size (hopefully)
Devecsery, David [Sun, 23 Aug 2020 18:02:08 +0000 (14:02 -0400)]
Update lab1.md
Devecsery, David [Sun, 23 Aug 2020 18:00:26 +0000 (14:00 -0400)]
Update e820.S
Devecsery, David [Tue, 18 Aug 2020 18:23:03 +0000 (14:23 -0400)]
Update lab1.md
Devecsery, David [Sun, 16 Aug 2020 05:44:59 +0000 (01:44 -0400)]
Update lab1.md
Devecsery, David [Wed, 12 Aug 2020 22:47:54 +0000 (18:47 -0400)]
Update lab1.md
Added "extra" section to lab1.md
Devecsery, David [Wed, 12 Aug 2020 18:15:40 +0000 (14:15 -0400)]
Update lab1.md
Added specification of backtrace.h file location.
Devecsery, David [Sun, 9 Aug 2020 03:15:54 +0000 (23:15 -0400)]
Update lab1.md
Fixed typo in lab1 instructions around apic3 field offset.
Devecsery, David [Sun, 9 Aug 2020 03:14:58 +0000 (23:14 -0400)]
Update e820.S
Fixed typo in do_e820 comment.
Devecsery, David [Mon, 27 Jul 2020 14:27:37 +0000 (10:27 -0400)]
Update lab1.md
David Devecsery [Tue, 23 Jun 2020 18:55:59 +0000 (14:55 -0400)]
Updated some links in lab1.md
David Devecsery [Wed, 10 Jun 2020 18:09:26 +0000 (14:09 -0400)]
Some better commenting, improved lab1.md
David Devecsery [Wed, 10 Jun 2020 16:39:58 +0000 (12:39 -0400)]
Tweaks to lab1.md
David Devecsery [Thu, 21 May 2020 16:58:19 +0000 (12:58 -0400)]
Merge branch 'master' into lab1
David Devecsery [Thu, 21 May 2020 16:55:17 +0000 (12:55 -0400)]
Added disassembly building for user-programs to makefile
David Devecsery [Thu, 21 May 2020 13:26:54 +0000 (09:26 -0400)]
Added in several quality-of-life needed patches.
David Devecsery [Tue, 19 May 2020 19:53:03 +0000 (15:53 -0400)]
Removed builtin nonsense again...
David Devecsery [Tue, 19 May 2020 19:51:53 +0000 (15:51 -0400)]
Updated printing functionality
David Devecsery [Tue, 19 May 2020 18:58:00 +0000 (14:58 -0400)]
About to do big changes to console...
David Devecsery [Mon, 18 May 2020 17:35:48 +0000 (13:35 -0400)]
Consolidated PHYSTOP operations, made it a little bit easier to define a dynamic phys_top
David Devecsery [Mon, 18 May 2020 15:59:06 +0000 (11:59 -0400)]
Added very minimal e820 support to the bootblock, had to omit frame pointers to compile
David Devecsery [Mon, 18 May 2020 14:51:04 +0000 (10:51 -0400)]
Merge branch 'master' into lab1
David Devecsery [Mon, 18 May 2020 14:50:56 +0000 (10:50 -0400)]
Forgot to add bootblock...
David Devecsery [Mon, 18 May 2020 14:50:31 +0000 (10:50 -0400)]
Added read_ebp to x86.h
David Devecsery [Mon, 18 May 2020 14:27:54 +0000 (10:27 -0400)]
Got string library updated so stab compiles, now have stab info integrated
David Devecsery [Mon, 18 May 2020 13:54:04 +0000 (09:54 -0400)]
Forgot to add instructions...
David Devecsery [Mon, 18 May 2020 13:51:11 +0000 (09:51 -0400)]
Draft 1 on instructions
David Devecsery [Thu, 14 May 2020 15:13:00 +0000 (11:13 -0400)]
Just realized old gitignore was causing kernel not to push... that could have been bad.
David Devecsery [Thu, 14 May 2020 14:49:44 +0000 (10:49 -0400)]
Fixed run scripts... blerg
David Devecsery [Thu, 14 May 2020 14:48:58 +0000 (10:48 -0400)]
Added run scripts. Life is better now
David Devecsery [Thu, 14 May 2020 13:37:42 +0000 (09:37 -0400)]
Cmake builds and runs!
David Devecsery [Thu, 9 Apr 2020 17:17:53 +0000 (13:17 -0400)]
Ported to c11, switched to c11 atomics
Frans Kaashoek [Tue, 24 Sep 2019 18:45:16 +0000 (14:45 -0400)]
Mention we switched to xv6 on RISC-V
Dan Cross [Wed, 20 Mar 2019 17:28:13 +0000 (17:28 +0000)]
Avoid rereading the superblock in bfree
The superblock is read when the first process returns to
userspace (via the call to `iinit` from the first invocation of
`forkret`, when `first` is still set to 1) and cached in a
global; it is treated as immutable from that point on. There is
no reason to re-read it in bfree.
Removing this call seems to have simply been missed in
8320d61b
when this general area was last touched. Remove it now to avoid
potential confusion.
Signed-off-by: Dan Cross <cross@gajendra.net>
Dan Cross [Thu, 21 Mar 2019 01:15:38 +0000 (01:15 +0000)]
Removed unused `dirlookup` argument in `create`
The `off` argument to `dirlookup` is optional. It
was not being used in the `dirlookup` call in `create`,
so pass NULL instead and delete the unused local.
Signed-off-by: Dan Cross <cross@gajendra.net>
Frans Kaashoek [Sun, 2 Sep 2018 12:33:55 +0000 (08:33 -0400)]
Update name
Use generic 6.828 url (without year)
Frans Kaashoek [Fri, 31 Aug 2018 13:21:19 +0000 (09:21 -0400)]
thanks tyfkda
Frans Kaashoek [Fri, 31 Aug 2018 12:41:23 +0000 (08:41 -0400)]
thanks Wolfgang Keller
Frans Kaashoek [Thu, 30 Aug 2018 20:20:16 +0000 (16:20 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 20:14:34 +0000 (16:14 -0400)]
Allow holding to be called with interrupts enabled (for Mark Morrissey).
Frans Kaashoek [Thu, 30 Aug 2018 19:45:16 +0000 (15:45 -0400)]
Delete a patch
Adjust typesetting of code
Frans Kaashoek [Thu, 30 Aug 2018 18:47:07 +0000 (14:47 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 18:16:29 +0000 (14:16 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 18:09:03 +0000 (14:09 -0400)]
thanks mtasm
Frans Kaashoek [Thu, 30 Aug 2018 17:48:47 +0000 (13:48 -0400)]
thanks wxdao
Frans Kaashoek [Thu, 30 Aug 2018 17:46:48 +0000 (13:46 -0400)]
thanks eyalz800
Frans Kaashoek [Thu, 30 Aug 2018 17:36:07 +0000 (13:36 -0400)]
vectors.pl is executable and asks shell for perl
Frans Kaashoek [Thu, 30 Aug 2018 17:30:50 +0000 (13:30 -0400)]
thanks mataness
Frans Kaashoek [Thu, 30 Aug 2018 17:27:57 +0000 (13:27 -0400)]
thanks tyfkda
Frans Kaashoek [Thu, 30 Aug 2018 17:25:54 +0000 (13:25 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 17:14:01 +0000 (13:14 -0400)]
Remove unused flags (thanks Wolfgang Keller)
Frans Kaashoek [Thu, 30 Aug 2018 17:09:03 +0000 (13:09 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 16:12:16 +0000 (12:12 -0400)]
x
Frans Kaashoek [Thu, 30 Aug 2018 15:57:46 +0000 (11:57 -0400)]
Because sleeplocks replaced B_BUSY the holding test can
be more specific (thanks Mark Morrissey)
Frans Kaashoek [Thu, 30 Aug 2018 15:42:10 +0000 (11:42 -0400)]
x
Robert Morris [Tue, 24 Oct 2017 12:49:31 +0000 (08:49 -0400)]
stricter log consumption by write()
Robert Morris [Sun, 8 Oct 2017 11:12:31 +0000 (07:12 -0400)]
improve swtch comment
Robert Morris [Tue, 29 Aug 2017 18:11:59 +0000 (14:11 -0400)]
fix runoff complaints about pagination and long lines
Frans Kaashoek [Thu, 10 Aug 2017 11:09:53 +0000 (07:09 -0400)]
thx
Frans Kaashoek [Wed, 9 Aug 2017 12:07:55 +0000 (08:07 -0400)]
Update comment to reflect xv6 doesn't have per-cpu segments anymore
Robert Morris [Wed, 9 Aug 2017 18:16:55 +0000 (14:16 -0400)]
nothing much
Frans Kaashoek [Wed, 9 Aug 2017 11:43:06 +0000 (07:43 -0400)]
Commit to running on an SMP (perhaps with only 1 core). Remove most code
from picirq.c and remove timer.c completely. Update runoff.list.
Robert Morris [Wed, 9 Aug 2017 10:54:45 +0000 (06:54 -0400)]
comment fixes
Frans Kaashoek [Tue, 8 Aug 2017 23:42:51 +0000 (19:42 -0400)]
Thanks Anton Burtsev <aburtsev@uci.edu>
Robert Morris [Tue, 8 Aug 2017 18:19:54 +0000 (14:19 -0400)]
fix iput() to more obviously avoid deadlock
Robert Morris [Tue, 8 Aug 2017 18:12:25 +0000 (14:12 -0400)]
a little more lock documentation
Robert Morris [Tue, 8 Aug 2017 17:48:48 +0000 (13:48 -0400)]
protect ip->valid and ip->nlink with sleep lock in iput()
Robert Morris [Tue, 8 Aug 2017 17:34:13 +0000 (13:34 -0400)]
change ip->flags&I_VALID to ip->valid
Robert Morris [Tue, 8 Aug 2017 17:27:06 +0000 (13:27 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev
Robert Morris [Tue, 8 Aug 2017 17:26:57 +0000 (13:26 -0400)]
frans' fixes to iput()
Robert Morris [Tue, 8 Aug 2017 17:24:38 +0000 (13:24 -0400)]
fs comment nits
Frans Kaashoek [Mon, 7 Aug 2017 19:15:18 +0000 (15:15 -0400)]
Remove some debugging statements
Frans Kaashoek [Mon, 7 Aug 2017 18:35:05 +0000 (14:35 -0400)]
Merge branch 'nogs'
Frans Kaashoek [Mon, 7 Aug 2017 17:44:03 +0000 (13:44 -0400)]
Merge branch 'patch-1' of https://github.com/aliceinwire/xv6-public
Frans Kaashoek [Mon, 7 Aug 2017 17:29:11 +0000 (13:29 -0400)]
Merge branch 'patch-1' of https://github.com/Saarett/xv6-public
Grant Wu [Thu, 27 Apr 2017 02:56:51 +0000 (19:56 -0700)]
Fix typo in dirlookup
Alice Ferrazzi [Mon, 27 Feb 2017 04:12:59 +0000 (13:12 +0900)]
Update LICENSE
updated copyright year
Saarett [Sun, 5 Feb 2017 10:44:56 +0000 (12:44 +0200)]
Free pgdir in setupkvm in case of mappages failure
There is a potential memory leak when mappages() fails inside setupkvm().
A call to freevm() is added in this case so as to reclaim the lost mapping pages.
Frans Kaashoek [Thu, 2 Feb 2017 01:36:41 +0000 (20:36 -0500)]
A tiny bit of clean up (e.g., move code searching cpu array from lapic.c into
mycpu() in proc.c.
Frans Kaashoek [Thu, 2 Feb 2017 00:21:43 +0000 (19:21 -0500)]
use panic
Frans Kaashoek [Thu, 2 Feb 2017 00:18:47 +0000 (19:18 -0500)]
shorten comment
Frans Kaashoek [Wed, 1 Feb 2017 23:04:13 +0000 (18:04 -0500)]
Eliminate code for gs trick to track per-cpu state. We rely on lapiccpunum()
to find a per-cpu id with which we locate a cpu's cpu struct.
Frans Kaashoek [Wed, 1 Feb 2017 01:21:14 +0000 (20:21 -0500)]
Read curproc from cpu structure, but be careful because after a schedule event
myproc() points to a different thread.
myproc();
sched();
myproc(); // this proc maybe different than the one before sched
Thus, in a function that operates on one thread better to retrieve the
current process once at the start of the function.
Frans Kaashoek [Tue, 31 Jan 2017 22:47:16 +0000 (17:47 -0500)]
Start of an experiment to remove the use of gs for cpu local variables.
Frans Kaashoek [Tue, 31 Jan 2017 01:24:13 +0000 (20:24 -0500)]
wolfgang keller
Frans Kaashoek [Tue, 31 Jan 2017 01:11:23 +0000 (20:11 -0500)]
Fix spelling Gaoron.
Frans Kaashoek [Tue, 31 Jan 2017 01:09:54 +0000 (20:09 -0500)]
Thanks to Wolfgang Keller <nubok@users.noreply.github.com>
Frans Kaashoek [Tue, 31 Jan 2017 01:07:42 +0000 (20:07 -0500)]
Thanks to Wolfgang Keller <nubok@users.noreply.github.com>
Antonio Gutierrez [Fri, 2 Dec 2016 19:17:54 +0000 (20:17 +0100)]
Add support for qemu-system-x86_64 in 64bit hosts
As x86-64 is a superset of x86, we can use qemu-system-x86_64 to run
the OS image.
Signed-off-by: Antonio Gutierrez <chibby0ne@gmail.com>
Frans Kaashoek [Tue, 31 Jan 2017 01:01:33 +0000 (20:01 -0500)]
Thanks to Jeehoon Kang <jeehoon.kang@sf.snu.ac.kr>
Peter Froehlich [Fri, 23 Dec 2016 01:26:37 +0000 (20:26 -0500)]
Fix long-standing switchuvm() inconsistency.
switchuvm() is supposed to switch the TSS and page table to the
process p it is passed. Alas, instead of using p to access the
kstack field, it used the global proc. This worked fine because
(a) most uses of switchuvm() pass proc anyway and (b) because in
the schedule, where we call switchuvm with the newly scheduled
process, we actually set the global proc before the call. But I
think it's still a bug, even if it never broke a test case. :-)
Peter H. Froehlich [Tue, 27 Sep 2016 20:58:29 +0000 (16:58 -0400)]
Fix unsigned conversion bug.
Since readi() returns -1 for errors, checking with < against an unsigned
value is inadvisable. Checking with != works as intended however.
Frans Kaashoek [Mon, 30 Jan 2017 14:38:19 +0000 (09:38 -0500)]
Cody
Cody Cutler [Mon, 26 Sep 2016 16:21:01 +0000 (12:21 -0400)]
fix possible memory leak in deallocuvm
when a zero PDE is encountered while searching for present PTEs to free,
resume searching at first entry of the next page table instead of the
current entry of the next page table.
Icenowy Zheng [Sat, 9 Apr 2016 01:38:40 +0000 (09:38 +0800)]
Fixed broken build on newer gold linker with NaCl support
On platforms with NaCl support, ld.gold -V will return a "elf_i386_nacl" in
addition to "elf_i386", which will make the build fail.
Frans Kaashoek [Mon, 26 Sep 2016 11:54:02 +0000 (07:54 -0400)]
Add mikecat's argp test