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11 commits

Author SHA1 Message Date
Andreas Kling
da3857b0c2 Add some simple write buffering to LibC's stdio. 
Plumb it all the way to the VirtualConsole. Also fix /bin/cat to write()
the whole chunks we get from read() directly to stdout.
 2018-11-08 01:23:47 +01:00
Andreas Kling
10b666f69a Basic ^C interrupt implementation. 
For testing, I made cat put itself into a new process group.
This should eventually be done by sh between fork() and exec().
 2018-11-02 14:06:48 +01:00
Andreas Kling
812e7940e2 Add a simple /proc/cpuinfo that includes some info from CPUID. 2018-11-02 10:14:21 +01:00
Andreas Kling
dfaa2b6b02 Convert VirtualConsole to the new coding style. 
I'm still playing around with finding a style that I like.
This is starting to feel pleasing to the eye. I guess this is how long
it took me to break free from the habit of my previous Qt/WK coding style.
 2018-11-01 14:11:22 +01:00
Andreas Kling
a685809e75 Waiters should be notified when a waitee is killed. 
Ran into a horrendous bug where VirtualConsole would overrun its buffer
and scribble right into some other object if we were interrupted while
processing a character. Slapped an InterruptDisabler onto onChar for now.

This provokes an interesting question though.. if a process is killed
while its in kernel space, how the heck do we release any locks it held?
I'm sure there are many different solutions to this problem, but I'll
have to think about it.
 2018-11-01 01:05:59 +01:00
Andreas Kling
9a086b2d35 Add a kmalloc_eternal() for things that will never be destroyed. 2018-10-31 23:19:15 +01:00
Andreas Kling
c7d5ce6b5a Add a /bin/tty command that prints the current tty. 
Also fix ttyname() syscall to include "/dev/" in the name.
 2018-10-31 21:46:05 +01:00
Andreas Kling
dec5683e9c Snazz up the kprintf() output a bit by giving it its own color. 2018-10-31 20:14:23 +01:00
Andreas Kling
1b81813a66 Fix crashy bug where we'd try to deactivate VC -1 on boot. 2018-10-30 16:16:20 +01:00
Andreas Kling
7a7956a595 Virtual consoles kinda work! 
We now make three VirtualConsoles at boot: tty0, tty1, and tty2.
We launch an instance of /bin/sh in each one.
You switch between them with Alt+1/2/3

How very very cool :^)
 2018-10-30 15:33:37 +01:00
Andreas Kling
68739dc43e Start working on virtual consoles/TTYs. 
This is a mess right now, but I'd rather commit as I go.
 2018-10-30 13:59:29 +01:00