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227 commits

Author SHA1 Message Date
Conrad Pankoff
c02b8b715d Kernel: Implement MBR partition loader (#168) 
This implements a basic MBR partition loader, which removes the reliance
on a hard-coded filesystem offset in the stage2 init.
 2019-06-02 14:57:44 +02:00
Conrad Pankoff
32d78a8526 Kernel: Rename OffsetDiskDevice to DiskPartition 2019-06-02 12:37:29 +02:00
Conrad Pankoff
6f43f81fb4 Kernel: Implement OffsetDiskDevice to prepare for partition support 
This implements a passthrough disk driver that translates the read/write
block addresses by a fixed offset. This could form the basis of MBR
partition support if we were to parse the MBR table at boot and create that
OffsetDiskDevice dynamically, rather than seeking to a fixed offset.

This also introduces a dependency in the form of grub. You'll need to have
32-bit grub binaries installed to build the project now.

As a bonus, divorcing Serenity from qemu's kernel loading means we can now
*technically* boot on real hardware. It just... doesn't get very far yet.
If you write the `_disk_image` file to an IDE hard drive and boot it in a
machine that supports all the basic PC hardware, it *will* start loading
the kernel.
 2019-06-02 12:37:29 +02:00
Andreas Kling
4320c5fd58 Kernel: Make better use of the multiboot info. 
Define the multiboot info struct properly so we don't have to grab at byte
offsets in the memory access checker code. Also print kernel command line
in init().
 2019-06-02 09:53:42 +02:00
Robin Burchell
d31ce9eccd Misc: Add a simple init process 
This doesn't do much right now, just fork off a bunch of stuff and set priorities.
 2019-05-30 02:57:15 +02:00
Christopher Dumas
dd84dcf31f Launcher loads applications from Launcher.ini, is started by default, and is resized automatically 
Co-Authored-By: Andreas Kling <awesomekling@gmail.com>
 2019-05-24 20:40:09 +02:00
Andreas Kling
e24e486714 Snake: Flesh out a basic snake game :^) 2019-04-20 03:24:50 +02:00
Andreas Kling
0e6b273620 LibGUI: Start working on GTableView inline editing. 
This is pretty shaky still, but the basic idea is that you subclass GModel
and return true for editable indices. The table view also needs to have its
editable flag set.
 2019-04-18 22:27:14 +02:00
Andreas Kling
3817f5f619 Kernel+LibC: Add a DebugLogDevice that forwards everything to I/O port 0xe9. 
This is then used to implement the userspace dbgprintf() in a far more
efficient way than what we had before. :^)
 2019-04-18 16:08:52 +02:00
Andreas Kling
33920df299 AK: Try to use StringViews more for substrings and splitting. 2019-04-16 02:39:16 +02:00
Andreas Kling
29d0412a06 Kernel: Remove system.h and make the uptime global a qword. 2019-04-14 01:29:14 +02:00
Andreas Kling
6f90f41516 VisualBuilder: Add some more GWidget default properties. 2019-04-12 14:47:21 +02:00
Andreas Kling
0f5114852a Kernel: Spawn text editor by default while I work on it. 2019-04-12 00:58:09 +02:00
Andreas Kling
93b76628a5 GGroupBox: Improve appearance with new FrameShape::Box style. 2019-04-11 14:27:31 +02:00
Andreas Kling
a58d7fd8bb Kernel: Get rid of Kernel/types.h, separate LinearAddress/PhysicalAddress. 2019-04-06 14:29:29 +02:00
Andreas Kling
ec7817af37 Kernel: Spawn /bin/Taskbar on startup. 
I think it's good enough now to be there by default. :^)
 2019-04-04 20:19:07 +02:00
Andreas Kling
b9738fa8ac Kernel: Move VM-related files into Kernel/VM/. 
Also break MemoryManager.{cpp,h} into one file per class.
 2019-04-03 15:13:07 +02:00
Andreas Kling
ab43658c55 Kernel: Move devices into Kernel/Devices/. 2019-04-03 12:36:40 +02:00
Andreas Kling
9fca94269e Kernel: Move TTY-related files into Kernel/TTY/. 2019-04-03 12:28:45 +02:00
Andreas Kling
f9864940eb Kernel: Move FS-related files into Kernel/FileSystem/ 2019-04-03 12:25:24 +02:00
Andreas Kling
649c81a714 Kernel: Move networking related files into Kernel/Net/. 2019-04-02 19:54:38 +02:00
Andreas Kling
94c68dc55a Kernel: Spawn the Launcher by default. 2019-04-01 22:04:09 +02:00
Andreas Kling
ee4d7c18c8 Kernel: Use a multiboot header instead of a convoluted two-part bootloader. 
The old bootloader was hilariously complicated, requiring a floppy disk with
the kernel on it, and a hard drive with the file system. This patch removes
the floppy disk from the equation and replaces it with a multiboot header.
This means the kernel can now be booted with qemu-system-i386 -kernel kernel
 2019-04-01 21:43:07 +02:00
Andreas Kling
750d79dcaf Kernel: Initialize the CPU to allow SSE on startup. 
I still need to add support for SSE to the context switching code, but now
at least one process can use it.
 2019-03-27 13:40:00 +01:00
Andreas Kling
239c0bd6a6 Kernel: Make block() and yield() automatically call Scheduler::yield(). 
This exposed some places we were accidentally doing a double yield().
 2019-03-24 01:52:10 +01:00
Andreas Kling
60d25f0f4a Kernel: Introduce threads, and refactor everything in support of it. 
The scheduler now operates on threads, rather than on processes.
Each process has a main thread, and can have any number of additional
threads. The process exits when the main thread exits.

This patch doesn't actually spawn any additional threads, it merely
does all the plumbing needed to make it possible. :^)
 2019-03-23 22:03:17 +01:00
Andreas Kling
9120b05a40 Rename DNSLookupServer => LookupServer. 2019-03-20 04:26:30 +01:00
Andreas Kling
0e4a1936ca LibC: Implement gethostbyname() by talking to the DNSLookupServer. 
We now talk to the lookup server over a local socket and it does the lookup
on our behalf. Including some retry logic, which is nice, because it seems
like DNS requests disappear in the ether pretty damn often where I am.
 2019-03-20 01:15:22 +01:00
Andreas Kling
35098cbde1 Kernel: Add a NetworkTask and a received network packet queue. 
It will be easier to deal with incoming packets in a separate task.
 2019-03-11 12:43:45 +01:00
Andreas Kling
97664fad60 Kernel: A bunch of hacking towards initial Ethernet support. 2019-03-10 20:59:23 +01:00
Andreas Kling
405413c354 Kernel: Start adding support for E1000 network adapters. 2019-03-10 15:25:33 +01:00
Andreas Kling
7d1142c7d9 Make it possible to sort a GTableModel by column+order. 
This is accomplished by putting a GSortingProxyTableModel between the model
and the view. It's pretty simplistic but it works for this use case. :^)
 2019-03-09 13:33:52 +01:00
Andreas Kling
a738b5cb69 TextEditor: Open an empty document by default. 2019-03-07 17:15:59 +01:00
Andreas Kling
9158de6c41 Begin working on a graphical TextEditor. 
It's gonna be a wrapper around a new GTextEditor widget so I can easily
reuse the functionality anywhere I need it. :^)
 2019-03-07 00:31:06 +01:00
Andreas Kling
166aadc4e1 ProcessManager: Start working on a graphical process manager. 
I need a table view widget for this thing, so I'm also using this to
prototype a model/view thingy.
 2019-02-28 01:43:50 +01:00
Andreas Kling
2cfcbdc735 AK: Add Retained<T>, like RetainPtr, but never null. 
Also use some Clang attribute wizardry to get a warning for use-after-move.
 2019-02-25 12:43:52 +01:00
Andreas Kling
d4973842c9 Kernel: Run the sync daemon once every second. 
This is obviously not a final design, but 10 seconds was way too long.
 2019-02-17 15:18:35 +01:00
Andreas Kling
ff786aa38a Spawn Launcher and FileManager on startup by default again. 
I disabled this while debugging WindowServer-in-userspace, and now that it
works fine we can bring these back up.
 2019-02-17 11:31:52 +01:00
Andreas Kling
b6bf26430d Kernel: Have devices automagically register themselves with the VFS. 2019-02-17 10:38:07 +01:00
Andreas Kling
bd2fdcbbaa Kernel: Rename BochsVGADevice to BXVGADevice. 2019-02-17 08:41:05 +01:00
Andreas Kling
10b43f3d1d Kernel: Rename Keyboard to KeyboardDevice. 2019-02-17 08:39:09 +01:00
Andreas Kling
53c69dbade Start the WindowServer process with high priority. 2019-02-17 00:21:26 +01:00
Andreas Kling
640360e958 Move WindowServer to userspace. 
This is a monster patch that required changing a whole bunch of things.
There are performance and stability issues all over the place, but it works.
Pretty cool, I have to admit :^)
 2019-02-17 00:13:47 +01:00
Andreas Kling
799177feda Kernel: Make BochsVGADevice a BlockDevice and support mmapping it. 
Currently you can only mmap the entire framebuffer.
Using this when starting up the WindowServer gets us yet another step
closer towards it moving into userspace. :^)
 2019-02-16 09:57:42 +01:00
Andreas Kling
994279d56c Kernel: Add Device base class for CharacterDevice. 
..to prepare for adding a BlockDevice class.
 2019-02-16 00:47:20 +01:00
Andreas Kling
022f7790db Use modern C++ attributes instead of __attribute__ voodoo. 
This is quite nice, although I wish [[gnu::always_inline]] implied inline.
Also "gnu::" is kind of a wart, but whatcha gonna do.
 2019-02-15 12:30:48 +01:00
Andreas Kling
18210c606d Kernel: Remove GUIEventDevice. 
It's no longer used since all communication now happens across sockets. :^)
 2019-02-15 08:59:55 +01:00
Andreas Kling
c5a00a56c8 WindowServer: Put a clock in the top right corner of the screen. 
This way we don't even need the Clock app anymore. Very cool :^)
 2019-02-13 09:27:08 +01:00
Andreas Kling
111589a558 Kernel: Make sure processes always start out with fds 0, 1 and 2 open. 
If we don't have a TTY for the process, fall back to /dev/null.
 2019-02-12 11:25:25 +01:00
Andreas Kling
f311d0f353 Kernel: Don't bother trying to pass environment to init's testing processes. 2019-02-12 10:19:52 +01:00