Aren/toaruos
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385 Commits

Author SHA1 Message Date
Kevin Lange
1c288e1c8b We never freed nodes from the scheduler queue :( 2012-03-10 12:39:35 -06:00
Kevin Lange
1b2d0e2c75 Bump version number to 0.1.0 for EOH 2012-03-07 19:35:30 -06:00
Kevin Lange
8fb8edba3a I have no idea idea what I'm doing. 2012-03-01 21:13:52 -06:00
Kevin Lange
2b0d6f6759 Some very simplistic window management 2012-02-25 23:52:09 -06:00
Kevin Lange
db8a75071d We have a terminal. In a window. Seriously. 2012-02-23 00:36:49 -06:00
Kevin Lange
2da22312a5 Merge branch 'master' of github.com:klange/osdev 2012-02-20 23:32:10 -06:00
Kevin Lange
de7a984938 Fix a bunch of bugs in signal handling and scheduling 2012-02-20 23:31:00 -06:00
Kevin Lange
e335a2970a [glogin] Working on the graphical login application 2012-02-19 21:29:40 -06:00
Kevin Lange
e1beca4127 CPU detection moved to userspace app 2012-02-19 19:39:18 -06:00
Kevin Lange
e5ed5cdca0 Disable line buffering in pipes. Totally not our job. 2012-02-17 15:01:09 -06:00
Kevin Lange
7c41cd7080 Fix compile warnings 2012-02-17 01:27:56 -06:00
Kevin Lange
220e9cbc57 Hopefully fix some latent signal bugs 2012-02-17 01:21:11 -06:00
Kevin Lange
678ed81c65 Extensive stability fixes. I think I finally squashed those stack bugs. 2012-02-16 22:43:41 -06:00
Kevin Lange
531d70f933 Ugly fix to bootup stack fault bug 2012-02-16 15:51:26 -06:00
Kevin Lange
8fb69d44cd I have no frickin' clue what's causing these startup crashes. Requires further investigation. 2012-02-16 15:09:56 -06:00
Kevin Lange
a1d821de9b Various fixes 2012-02-16 14:38:50 -06:00
Kevin Lange
a72f9bc7cf Fix stack bug. 2012-02-16 14:31:40 -06:00
Markus Schober
6dc90b1ac2 shm_obtain takes a (size_t *) and modifies the value based on the true 
size of the block returned.
 2012-02-16 03:34:42 -06:00
Kevin Lange
c67d2796ef Finish threading (might still be some bugs) 2012-02-16 01:06:44 -06:00
Markus Schober
4453aba2de can haz threads? 2012-02-15 22:56:16 -06:00
Kevin Lange
cffbb02240 Stuff and things 2012-02-15 20:50:31 -06:00
Kevin Lange
de0bbe739b Fix a bunch of system calls... 2012-02-12 18:47:01 -06:00
Kevin Lange
9b1e227c0f Fix a dozen different things. 2012-02-12 16:45:23 -06:00
Kevin Lange
cc7354d298 Fix bad process switch handling on empty queues 2012-02-11 18:27:28 -06:00
Kevin Lange
89c7ef9620 Add signal header... 2012-02-11 18:02:22 -06:00
Markus Schober
45903b204b fixed a subtle bug in shm; added a bunch of utilities to test it 2012-02-10 22:31:38 -06:00
Kevin Lange
58c176dfa0 Syscalls to share file descriptors over a shared memory region 2012-02-08 20:59:34 -06:00
Kevin Lange
180342822a Merge branch 'master' of github.com:klange/osdev 2012-02-08 20:09:33 -06:00
Kevin Lange
79fcaf5136 Stability fixes. 2012-02-08 20:09:28 -06:00
Markus Schober
27d0deed5b [shm] fork() and execve() don't wreak havoc on shm 2012-02-08 19:59:34 -06:00
Kevin Lange
aa73f6fc6e Fix a task 0 exit bug 2012-02-08 19:30:35 -06:00
Kevin Lange
ea961ea0e3 Fix compilation warnings 2012-02-08 16:07:54 -06:00
Kevin Lange
65fa12f482 SIGNALS 2012-02-08 02:40:44 -06:00
Markus Schober
aec24c08f1 Attaching nearly works! 2012-02-07 02:29:28 -06:00
Kevin Lange
a190f9995c shm negotiate comments 2012-02-06 15:37:40 -06:00
Kevin Lange
fdaf53b0c4 [shm] Working on negotiation functions 2012-02-05 19:56:21 -06:00
Kevin Lange
1a5057e1fa [minor] typo 2012-02-05 18:14:29 -06:00
Kevin Lange
aba36f4dce Reserving syscall numbers for shared memory 2012-02-05 18:12:50 -06:00
Kevin Lange
c4e33117c0 mkdir and creat testing 2012-02-05 16:04:41 -06:00
Kevin Lange
6590b285b5 Mouse improvements (stability, scaling) 2012-02-04 22:29:46 -06:00
Kevin Lange
3bade472f2 Change comment regarding version names 2012-02-03 22:41:55 -06:00
Kevin Lange
2e8144493d Bootsplash testing (launches terminal afterwards) 2012-02-03 18:16:47 -06:00
Kevin Lange
78e96435ad [util] Script to run fullscreen 2012-02-03 12:23:49 -06:00
Kevin Lange
aac1d78e35 Drop packets from the mouse if the client isn't reading fast enough 2012-02-02 20:37:50 -06:00
Kevin Lange
4366a20a8f Pipe and packet-based mouse device 2012-02-02 16:16:29 -06:00
Kevin Lange
6f773cf407 Fix a cast warning 2012-01-31 20:12:19 -06:00
Kevin Lange
89d9265c73 Actually deschedule processes when they are waiting 2012-01-31 19:27:38 -06:00
Kevin Lange
71298a5c83 Relatively broken local echo support 2012-01-31 00:16:09 -06:00
Kevin Lange
a8cc561cce Try to write good documentation for the vfs module 2012-01-30 16:48:54 -06:00
Kevin Lange
238278c3fc init, get/sethostname 2012-01-30 12:10:53 -06:00
Kevin Lange
047f209357 Style guide. 2012-01-29 12:46:34 -06:00
Kevin Lange
c9d5e735ed Getting ready for thread support 2012-01-28 17:06:07 -06:00
Kevin Lange
a47fe02224 Directory switching 2012-01-27 13:10:58 -06:00
Markus Schober
405868ac8a First commit of readdir/ls support. 2012-01-27 04:04:04 -06:00
Kevin Lange
9061f91e74 stat(), fstat(), /bin/stat 2012-01-27 03:12:29 -06:00
Kevin Lange
71f5a8e3e4 New MOTD, bump version number (0.0.2-testing uiharu) 2012-01-27 00:25:28 -06:00
Kevin Lange
d112f6fedb Reboot [and fix user/group permissions in fork()] 2012-01-26 23:11:43 -06:00
Kevin Lange
ac8354d805 Add some system calls, plus a fakish /bin/login 2012-01-26 22:46:18 -06:00
Tianyi Wang
35ce150bb0 Fixes where the block number of inode is incorrectly changed. 2012-01-25 23:30:41 -06:00
Kevin Lange
c7afd7b941 HACF should return non-zero. 2012-01-25 20:08:22 -06:00
Tianyi Wang
cbb739e14b [fix merge conflict] 2012-01-25 19:30:45 -06:00
Tianyi Wang
023865913c fs stuffs 2012-01-25 19:25:59 -06:00
Kevin Lange
d73d2e2361 [cmos] Fix userspace clock 2012-01-25 13:50:30 -06:00
Kevin Lange
1a2cb28fc1 [pipe] Fix write overrun and other issues 2012-01-25 00:54:59 -06:00
Kevin Lange
339b82e10c [massive commit] Userspace terminal. 
Completely removes:
* The kernel terminal (both VGA and graphical)
* The kernel ANSI parser (obviously)
* kgets() function
* Dozens of other functions that were made useless

Adds:
* Userspace terminal that should work (relatively) well
* Keyboard device driver (implemented with a "pipe" object)
* Stabalized interrupt interface
* `clear` uses the c library
* All panic screens and kprintf() output goes to the serial line ONLY
* The kernel boots directly into /bin/terminal (no arguments, unless you
  want to add them (such as -f))
 2012-01-25 00:19:52 -06:00
Kevin Lange
d9c0c8efb6 Pipes, dup2, and an almost-kinda-working terminal 2012-01-24 19:06:07 -06:00
Kevin Lange
6c042aba53 Pipes 2012-01-24 18:40:25 -06:00
Kevin Lange
9147549bd5 oops 2012-01-24 17:58:19 -06:00
Kevin Lange
9ba44c73bc [pipe] Pipe (ring buffer) device? 2012-01-24 17:56:35 -06:00
Kevin Lange
e05515844d Null device 2012-01-23 23:01:23 -06:00
Kevin Lange
0b6cc503af [isrs] Increment the IRQ semaphore before... 
... handling any interrupt service routines.

This was causing crashes while running /userspace/ apps without any
syscalls being triggered, presumably due to switching at awkward times.
 2012-01-23 19:04:10 -06:00
Kevin Lange
ed31c2cbea Drop serial output from standard terminal 2012-01-23 12:36:59 -06:00
Kevin Lange
e3dc6b002d [bochs] (still broken) fix fb detection for qemu 1.0 2012-01-19 17:44:50 -06:00
Kevin Lange
e5330b1df0 Started work on the full ELF loader and C++ support 2012-01-18 20:12:04 -06:00
Kevin Lange
0440b775d8 [typo] 2012-01-18 20:08:43 -06:00
Kevin Lange
4a22517298 Fix some minor ANSI support things 2012-01-10 23:22:12 -06:00
Kevin Lange
5fa42a5d34 Fix a kgets() thread-switcing bug 2012-01-10 20:14:07 -06:00
Kevin Lange
6b2ee875d4 Interrupts on/off is a semaphore 2012-01-10 19:54:05 -06:00
Kevin Lange
aa748bc99a Hmpf. 2012-01-10 19:14:30 -06:00
Kevin Lange
ef5f2ebd1a Fix minor tab completion bug 2012-01-10 18:42:46 -06:00
Kevin Lange
edebb12573 [misc] Boot logging to screen 2011-12-26 19:23:58 -06:00
Kevin Lange
3023d58a7f [video] Really need to fix this 24-bit-color stuff... 2011-12-25 22:37:13 -06:00
Kevin Lange
c440ab6477 [misc] Fix some general boot issues with some Grubs 2011-12-25 18:18:41 -06:00
Kevin Lange
c0f45e0b7f VESA mode switching support. 
BIOS execution is provided through the `v8086` module, which provides
software emulation of an 8086 processor. It is not currently working
with some BIOSes and may (read: probably will be) replaced with another
emulator (x86emu comes to mind) at some point in the near future. In the
meantime, the default video mode for QEMU works with this and it's
enough to get us on real VESA instead of fake VBE. The `bochs` module
will be renamed in a future commit. Userspace programs have been
adjusted to work at bitrates other than 32 *POORLY*. If you write pixels
left-to-right, they should work fine. They only work with 24-bpp
otherwise, and then you need to be careful of what pixels you are
writing when, or you will overwrite things in other pixels.

You may pass a commandline argument like the following to set display
modes:

  vid=vesa,1024,768

Or for stranger modes under QEMU or Bochs, use the bochs VBE
initializer:

  vid=bochs,1280,720

Note that the address of the linear framebuffer is still found via
hackish probing instead of PCI or trusting the VBE information, so if
you have things in the wrong memory ranges (0xE0000000+), be prepared to
have them get read.

Once again, this entire commit is a massive hack. I am happy that it
worked, and I will continue to make it less hacky, but in the meantime,
this is what we've got.

Happy holidays.
 2011-12-25 00:40:40 -06:00
Kevin Lange
fb8f35719d [vid] Prepare for VESA implementation. 2011-12-16 14:00:48 -06:00
Kevin Lange
bf1011e2ba [vid] Support setting video resolution from kernel args 2011-12-16 13:39:34 -06:00
Kevin Lange
a4d17cb382 Graphics resolution independence (targetting VESA support); update README 2011-12-16 13:16:20 -06:00
Kevin Lange
b2606ff706 [version] Kernel version and codename, shell uname cmd 2011-12-16 02:15:44 -06:00
Kevin Lange
26b3079578 [main] Also include lower memory in available pages 2011-12-15 23:00:43 -06:00
Kevin Lange
fac669e4c3 [mem] Add facilities to track memory usage (naïvely) 2011-12-15 21:47:46 -06:00
Kevin Lange
e844fe53ad [list] Fix merge bug 2011-12-15 21:13:47 -06:00
Kevin Lange
ddc71135af [proc] Fix some latent management bugs 2011-12-15 21:08:48 -06:00
Kevin Lange
324cba6f57 [printf] Add one more little catch, just in case... 2011-12-15 17:46:57 -06:00
Kevin Lange
021585e9ef [misc] Massive improvements to process handling 
- Free process resources when a process exits (reaped in next process
  cycle; should probably reap after a wait() or something)
- Free process struct after wait()
- Fix page allocation
- Fix fork() return value for child process (attempted to write to an
  invalid point in kernel-stack memory)

We shouldn't be triple faulting randomly anymore!

Continue investigating the fork() return value, as there was a bugged
return at some point during executon of a test run of thrash-process.
 2011-12-15 17:21:28 -06:00
Kevin Lange
37c3ab67ce [sys] Fix fork syscall return values 2011-12-15 15:31:18 -06:00
Kevin Lange
dae4083454 [panic] Updated panic messages 2011-12-15 01:46:22 -06:00
Kevin Lange
67343548a7 Only mount hard disk if requested 2011-12-14 22:30:46 -06:00
Kevin Lange
8c548c0db0 Restructure directory tree for kernel modules 2011-12-14 22:15:47 -06:00
Kevin Lange
5d0f3f0f3d [text/io] Better text output management 
- Fixes a number of bugs with VGA text-mode (including crashes and
  colors)
- Makes it far easier to include more console drivers in the kernel,
  though this will be terribly redundant in the future.
- Actually check for video graphics modes before attempting to draw the
  mouse cursor.
 2011-12-14 21:50:34 -06:00
Kevin Lange
258e2bfbfe [log] More logging, make output of dmesg prettier 2011-12-14 19:43:14 -06:00