04da26bff5
kernel: add a few comments
2022-10-11 19:51:24 +02:00
0131193379
ELFLoader, Scheduler: Transition to use VFS
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We should start to drop the old InitRD API, which only allows for files to be loaded from the initrd, and which forces pathnames to be relative (bin/init)
With VFS, we can load any kind of file from any kind of filesystem, and using paths that make sense (/bin/init)
2022-10-11 19:33:48 +02:00
86b50a6aa0
Remove random demos
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Cool, but cumbersome in practice: have to continually restart until I get the demo I want.
So let's stick to init for now.
2022-10-11 19:25:19 +02:00
0a7d4a530d
VFS, DeviceFS: Implement a device filesystem
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For now, we just have a version device. (this will allow us to get rid of sys_getversion!!)
More should be implemented soon.
2022-10-11 19:21:16 +02:00
4aa3da8c12
VFS: Add basic mount(), unmount() and mkdir() functions (not accessible to userspace yet)
2022-10-11 18:23:00 +02:00
7a097f16ea
apps: add a new example app which does all kinds of stdio misbehaving >.<
2022-10-11 17:31:06 +02:00
667d308fc3
kernel/main.cpp: remove obsolete reference to _userspace
2022-10-11 17:30:40 +02:00
bbe7c6e658
VFS: Implement resolve_path and form the initial ramdisk's VFS properly
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Finally, resolve_path: a function which takes a path (/etc/fstab for example), and walks the VFS:
In this case, it would start with the root FS node, and ask it: "do you have a directory/file named etc?"
The node could say 'yes', 'no', or 'i'm not a directory, I'm a file' (should not be the case for the VFS root, but for the other ones it could be)
If it says yes, we continue and ask the child if it has a file named fstab. Etc...
2022-10-10 18:44:43 +02:00
2be70d0bc1
VFS: Use 64-bit numbers in read()
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There is no need for any kind of 32-bit compatibility.
2022-10-09 21:30:38 +02:00
b38c52f8c7
more vfs stuff
2022-10-08 21:35:19 +02:00
f3d7e220ac
The beginnings of a VFS implementation!!
2022-10-08 21:22:46 +02:00
f83a6ace51
Kernel, libc: Add support for providing a status code to exit()
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The exit() libc function already accepted an integer, but didn't pass it on to the kernel since we had no mechanism for it to do that.
Now, the kernel stores a task's exit status to display it later (and in the future, return it to userspace via wait()/waitpid())
2022-10-08 17:56:40 +02:00
b7ee746da3
Kernel: Enable even more warnings
2022-10-07 18:10:20 +02:00
594d79143e
Kernel: enable -Wconversion
2022-10-06 17:13:34 +02:00
5d8b825659
Add a few example apps/demos in C, and make the kernel choose a random one to demonstrate every boot
2022-10-03 21:24:38 +02:00
87cb41e549
Separate the logging stack into toggleable backends, to disable console logging once boot finishes.
2022-10-01 15:35:11 +02:00
0e46ea8ada
Finally, a text renderer that actually works. We can now see the kernel messages without a serial port :)
2022-10-01 14:27:45 +02:00
30411b4b78
Fix hackiness in converting a uint32_t to a Color, by providing a function to do so
2022-10-01 13:08:47 +02:00
66bee86a8b
Scheduler: add a load_user_task function that directly loads a file from the initrd
2022-10-01 12:28:32 +02:00
1c4383dea4
Add an apps/ folder and build-system to build userspace apps which can now be loaded from the initrd
2022-10-01 12:17:16 +02:00
692221dd9e
GO FAST WHEEEEEEEEEEEEEEEE (pit tick 1 time per millisecond, so 1ms accuracy instead of 2ms like before)
2022-09-25 22:00:36 +02:00
07d6fe388d
Fix naming
2022-09-25 21:43:28 +02:00
f1a7138568
User mode (with a few syscalls)
...
IT ACTUALLY WORKS NOW.
Why wasn't it working? Oh, because I was not setting already present page tables's permissions to user mode. Just a little bug. THAT I SPENT DAYS TRYING TO FIND
Anyways, it works now. Such a relief...
2022-09-25 20:35:05 +02:00
aee4e55fdd
add a proper kernel panic
2022-09-25 16:56:00 +02:00
6fc7608c35
main: remove kmalloc/kfree example
2022-09-24 23:18:44 +02:00
6bd3529f32
Port liballoc to get proper kmalloc/kcalloc/krealloc/kfree functions.
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Yes, that's not completely-from-scratch.
But let's be honest, am I going to do everything from scratch? Probably not. I'm not making my own bootloader.
And making a proper smaller-than-4-KB allocator is not something I want to do.
Plus, liballoc works perfectly in this rewrite, seeing as the MM code actually works, instead of leaking all your poor memory
And liballoc_{lock, unlock} can be actually defined, since we have spinlocks here!
2022-09-24 22:40:59 +02:00
3891d0c52e
Rename KernelMemoryManager to MemoryManager
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Kind of a more catchy name, isn't it?
2022-09-24 21:45:13 +02:00
46b7dab847
Remove RangeAllocator and make a PMM namespace
2022-09-24 21:27:45 +02:00
56ace11bb1
Copy "hello.size" bytes from hello instead of 512, who knows what there is in there...
2022-09-23 18:03:20 +02:00
7b8d30aacd
Add a Device class to PCI and a PCITypes file for string names for PCI device types
2022-09-23 18:01:07 +02:00
8a93c53277
Add a Device class to PCI
2022-09-23 17:24:45 +02:00
c3e5251687
Some more userland and font failing
2022-09-23 16:41:43 +02:00
ec01dc2927
Scheduler: Change fixed Task array for (highly inefficient) memory allocation, add userspace task support (which as memory is mapped kernel-only instantly crashes), and support for exiting a task (marking it as exited and reaping it later)
2022-09-21 21:06:00 +02:00
af8e5aca64
Add basic PCI driver
2022-09-21 17:57:02 +02:00
49ddb47ad4
Reorganize structure
2022-09-21 17:56:53 +02:00
e83d4c8ac9
Use a faster PIT tick rate
2022-09-21 07:29:44 +02:00
29f0253e5b
Little colorful demo
2022-09-20 20:49:31 +02:00
1c12cf016e
Add a Scheduler.
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Finally.
Just Round Robin with sleeping, but it's still awesome. I think this can finish v0.3, with a few adjustments.
2022-09-20 19:58:04 +02:00
1c1aa96293
Add a moon_version function that returns the full version string
2022-09-20 16:34:24 +02:00
6967fa9117
Update config.h to use a .cpp file that will be recompiled when it changes
2022-09-20 16:30:34 +02:00
efb28d3258
Randomness and stack protection!!
2022-09-14 18:54:40 +02:00
db4c8e96b8
commit
2022-09-14 17:55:24 +02:00
0cb59ee17f
please work please
2022-09-11 08:23:32 +02:00
6a0cf7cf98
New framebuffer class!!
2022-09-10 18:42:40 +02:00
fe672e6a18
Use appropriate logging functions
2022-09-08 17:03:17 +02:00
f3f9756106
Remove unused headers in main.cpp
2022-09-08 16:30:15 +02:00
276d20a33d
Remove log/Address.h, since Log.h has variadic functions now
2022-09-08 16:26:24 +02:00
929962efc9
Fixed size counting in RangeAllocator
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Which was displaying VERY wrong sizes beforehand. (Number of regions * 4096 instead of number of bytes)
2022-09-07 20:01:44 +02:00
b4484e951d
LOTS MORE LOGGING. which is great, of course.
2022-09-07 19:41:08 +02:00
c2391cee5d
Added config.h
2022-09-07 15:02:54 +02:00
