2046482e77
Added support for MSRs, PAT and MTRRs.
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This provides control over the caching of memory, which makes write-combined
IO possible. Graphics drivers can use this to transfer data at a much higher
rate to the video memory.
The implementation is a bit hacky but it'll do for now. It provides enough
support for the experimental VBE driver to work on the real computers I
tested it on, even if the BIOS uses screwed up default MTRRs.
The virtual memory layer now automatically uses the PAT feature if available
but in a backwards compatible manner and otherwise just tries to approximate
PAT features if they are asked for.
2012-07-01 00:55:36 +02:00
b650c9a8f0
Added a O_ACCMODE flag for GNU compatibility.
2012-05-28 22:52:11 +02:00
00869bcdc1
The PIC can now be deprogrammed and reprogrammed.
2012-05-26 14:00:24 +02:00
bd489eb73a
Forward compatbility with the kthread branch.
2012-05-04 13:13:44 +02:00
92c5533820
Improved the implementation of the exec* functions.
2012-04-30 21:10:02 +02:00
93abeda32e
Fixed buffer overflow in devfs.cpp.
2012-04-14 22:03:55 +02:00
3b63a70191
Added Interrupt::SetEnabled(bool).
2012-04-13 17:42:21 +02:00
f59b53ddce
Ported x64 interrupt assembly to the GNU assembler.
2012-04-13 17:34:17 +02:00
8cbf9ff8f0
Added Interrupt::IsEnabled().
2012-04-11 15:46:32 +02:00
36ff6c7f96
seek(2) now correctly rejects a bad whence value.
2012-04-10 13:20:33 +02:00
6367a2352e
Added sforkr(2) that controls the child registers as well.
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sfork(2) now calls sforkr(2) with the current registers.
This will prove useful in creating threads, where user-space now can fully
control what state the child will start in. This is unlike the Linux clone
system call that accepts a pointer to the child stack; this is more powerful
and somehow simpler. Note that this will create a rather raw thread; no
thread initization has been done by the standard thread API (when it is
implemented), so this feature shouldn't be used by programmers unless they
know what they are doing.
fork(2) now calls sfork(2) directly. Also removed fork(2) and sfork(2) from
the kernel as they are done using sforkr(2) now. So technically they aren't
system calls right now, but that could always change.
2012-04-05 23:00:47 +02:00
6f36ecf0b3
execve(2) now pushes envp to the new stack and sets up registers.
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This fully implements environmental variables over exec.
2012-04-04 01:49:14 +02:00
05b29ce25a
Renamed rfork(2) to sfork(2) to avoid compatibility issues.
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sfork is much like rfork except sharing is default for everything.
Eventually, I'll make a rfork(3) wrapper function around sfork(2) to
provide compatibility to BSD programs.
I don't like Linux clone(2): that's some messy function.
2012-04-04 00:29:25 +02:00
95a088fec5
Added a dummy implementation rfork(2) equal to fork(2).
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Note that in my implementation, you share per default, unless you ask.
2012-04-02 16:30:13 +02:00
b3b1f6af66
Make sure that the right bits.h file is always included.
2012-03-27 16:36:55 +02:00
554b2e44cc
Added a Page::IsAligned inline function.
2012-03-26 16:46:26 +02:00
c62eb09cdc
Added stubs for pread(2) and pwrite(2).
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These are not implemented yet because the current kernel design is bad.
However, I need the stubs for other code.
2012-03-24 15:23:07 +01:00
1ba4417b19
Removed dead ancient code.
2012-03-22 01:04:27 +01:00
db79994e64
Refactored all the sortix headers into a include directory.
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Also got rid of trailing white space. That corrupted .git/.
Big ass-commit because of recovered .git directory.
2012-03-22 00:52:29 +01:00
ea11c20689
Added a way for discover refcount of Refcounted classes.
2012-03-21 16:20:41 +01:00
0f099c65ca
The virtual memory fork code can now handle ENOMEM conditions.
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(forkbombs now don't panic the system!)
2012-03-19 02:39:11 +01:00
c9ab4fa6b4
The sortix vga terminal now can delete tabs and newlines properly.
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A nice little vga attribute array takes care of remembering what indexes
actually contains a character.
2012-03-18 18:06:13 +01:00
14a9149f17
Added detection for an obscure bug to let users know I know about it.
2012-03-18 17:36:31 +01:00
d564603460
Fixed kernel stack overflow and premature EOF in the unix pipe code.
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This usually caused the system to lock up when much data was transferred
over pipes, for instance: $ cd /bin ; cat cat | cat
2012-03-18 16:14:26 +01:00
c7c0fc603a
Fixed initial kernel stack being wrong size.
2012-03-17 20:17:12 +01:00
969c0e8048
Cleaned up sortix/kernel.cpp and it now uses the new coding style.
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All kernel.cpp code related to jssortix was removed as it is not supported
any longer.
2012-03-17 20:11:37 +01:00
4f3e22140c
Fixed x64 memory leaks upon process termination.
2012-03-17 18:14:57 +01:00
0364ce6f55
Added a new COM Port driver.
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Any detected COM ports available as /dev/comN.
It currently utilizes AGAIN to do polling in user-space. This prevents it
from locking up the whole system and makes it respond to the SIGINT hack.
There is also a more reliable and faster polling-blocking mode, but it locks
up the entire system.
The main interrupt mode is broken, perhaps by a bug in VirtualBox.
2012-03-17 15:48:42 +01:00
1ff0321400
Added a stub for Syscall::Yield() which is used by broken code.
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The whole system call interface is currently stupid.
2012-03-17 15:14:42 +01:00
798b421d16
Refactored devfs so new devices can easily be added.
2012-03-17 15:11:35 +01:00
5ec4e33196
Removed the last reference to the old kernel HTTP server.
2012-03-16 16:56:16 +01:00
2cdeb575f8
Renamed EACCESS to EACCES.
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Stupid POSIX.
2012-03-12 01:43:00 +01:00
5b916b5f63
Added F_SETFL and F_GETFL to fcntl(2).
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This is a bit of a hacky implementation.
2012-03-11 20:29:00 +01:00
868ed43e05
Removed sortix/mxfs.
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It's unbelievable that this piece of dead code survived 8 months of
development on git. It doesn't even work, despit the comment that it
does.
2012-03-11 18:07:01 +01:00
f01d7951c1
stat(2) now supports directories.
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A bit hackily, though.
2012-03-11 17:56:20 +01:00
6e536ba8f9
Fixed error codes in sortix/fs/devfs.
2012-03-11 17:55:52 +01:00
245e8bf0e3
Fixed error codes in sortix/fs/initfs.
2012-03-11 17:55:23 +01:00
f45cf8327a
Forgot to enable the /bin /dev hack in sortix/fs/ramfs.cpp.
2012-03-11 17:30:13 +01:00
cadac5ce2a
Moved the /bin and /dev hack into the kernel.
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This makes ls seem less hacky.
2012-03-11 17:25:32 +01:00
8a9a0c58ea
Added kernelinfo(2), which reads a kernel information string.
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Currently it lets you query the name of the kernel, its version, and the
build timestamp of the kernelinfo.cpp file.
2012-03-07 18:04:59 +01:00
6bcb3d7384
Added stat(2) and fstat(2) in the kernel.
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It's a bit hacky, but it works.
lstat(2) currently redirects to stat(2).
2012-03-06 13:10:59 +01:00
4b2c22d480
Added access(2).
2012-03-05 15:46:23 +01:00
d3c4df72b1
Added st_{a,c,m}time to struct stat.
2012-03-04 22:25:47 +01:00
aa72efdb2c
Added <sortix/timeval.h> to the list of public headers.
2012-03-04 22:18:53 +01:00
c0a02248da
Added <sys/time.h>, struct timeval and gettimeofday(3) stub.
2012-03-04 22:05:52 +01:00
5e75f5c428
Added fcntl(3) with FD_GET and FD_SET.
2012-03-04 21:36:40 +01:00
75b14aa821
Refactored the descriptor table and added FD_CLOEXEC and FD_CLOFORK.
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open(2) now also respects O_CLOEXEC and O_CLOFORK.
2012-03-04 21:06:49 +01:00
777fc04682
Added <time.h>, clock_t, and a stub for clock(3).
2012-03-04 18:38:23 +01:00
ac7e55ffbd
Added st_dev to struct stat.
2012-03-04 16:48:24 +01:00
db7781c54a
Install <sortix/*.h> headers in sysroot.
2012-03-04 16:04:12 +01:00
Jonas 'Sortie' Termansen