9f5fb547f7
Add logging system :)
2022-11-30 13:29:28 +01:00
f1756e6f58
Add unit formatting
2022-11-30 12:42:11 +01:00
35b7194fb7
Move initialization into an init() function returning Result<void> so we can use TRY
...
And remove a lot of testing code as well.
2022-11-20 17:56:07 +01:00
d54c882c63
Add new/delete-like functions but with Results
2022-11-20 15:48:08 +01:00
caf6d1563c
Kernel: Add a heap memory allocator
...
This is the first time I've actually dropped liballoc in favor of writing my own implementation.
Usually, malloc() and such looked so complicated that I preferred to let a nice external library do the job.
But I've decided to try writing my own allocator, and now we have heap memory without any 3rd party code!
2022-11-20 15:15:26 +01:00
d96cb73995
Rename physical "pages" to "frames"
...
AFAIK, this is the proper naming scheme. "Pages" are virtual, and "frames" physical.
2022-11-19 22:27:08 +01:00
83bcac7a16
Kernel: Introduce a timer interface
2022-11-19 20:01:01 +01:00
70c6b78e35
Organize source tree
2022-11-19 17:59:49 +01:00
102eabcb4b
Do some more formatted logging
2022-11-19 17:52:24 +01:00
4ebf244d3b
Support printing some integers in output_integer
2022-11-19 13:15:13 +01:00
603ff46d8c
Add a format implementation
2022-11-19 12:30:36 +01:00
109de54822
Provide stubbed handlers for many more x86 exceptions
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I am now officially a big-boy OS developer, I read the Intel manuals for this!! (Not that the OSDev wiki doesn't have the information, but it was missing descriptions for some more obscure exceptions)
2022-11-18 20:51:25 +01:00
7f15ba0ac5
Add some interrupt handling
2022-11-16 17:37:18 +01:00
c9feb11366
Introduce a check() method (like assert() but always on)
2022-11-15 19:36:50 +01:00
c319336e3d
Add a CPU interface
2022-11-15 19:10:32 +01:00
ae235e5538
MMU: unmap and remap for x86_64
2022-11-13 16:51:21 +01:00
d6c56fb512
Mapping finally works!!
2022-11-13 16:31:32 +01:00
4c4f72b865
More MMU stuff, but writing still fails
2022-11-13 15:33:53 +01:00
705c2747de
Add memory manager
2022-11-13 14:29:15 +01:00
6b95307b54
Add init
2022-11-13 12:20:53 +01:00
ffbe5260a5
Add Framebuffer stuff
2022-11-13 11:25:15 +01:00
82c2381ac9
Serial printing!!
2022-11-13 10:30:10 +01:00
cf758fdfdc
Initial commit :)
2022-11-13 10:09:09 +01:00
3451d50a37
Try building a tmpfs, but weird stuff happens
2022-11-12 18:13:41 +01:00
11ee01f269
Kernel: Remove "checkpoint logging" in main.cpp
2022-11-12 12:55:47 +01:00
60bd8d9418
Kernel: Add an explanatory comment to the end of _start()
2022-11-09 15:58:00 +01:00
1ea216dfd1
Kernel: Rename assert.h to ensure.h
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The macro is named "ensure", the header file should reflect that.
2022-11-09 15:28:35 +01:00
c604c074a1
Kernel: Rename ASSERT() to ensure()
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Doesn't get stripped on release builds, so it shouldn't be named assert.
2022-11-02 19:38:15 +01:00
d1e4bc5504
Kernel: Use framebuffer virtual address instead of physical address
...
Just found out bootboot.fb_ptr was the physical address, not virtual.
That explains why we were getting page faults while writing to the physical address of the framebuffer. (we were in a user address space when doing so)
So this should probably make the system much more stable!!
2022-10-29 20:10:49 +02:00
fef7dd5867
Rename [moon-reaper] to [reaper]
2022-10-22 14:43:41 +02:00
b035795eb3
Kernel: Move errno.h and (k)assert.h out of the main include directory
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This is mostly so IDEs don't pick them up instead of the userspace headers :)
2022-10-19 17:41:23 +02:00
593daba651
Kernel: Remove unused headers in main.cpp
2022-10-17 19:23:53 +02:00
ea8a42b8c0
Kernel: Add a name field to the Task structure
2022-10-17 19:12:47 +02:00
9b39d618de
Kernel, libc: Implement spawn()
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This function is a Luna alternative to fork() and exec().
Why? Simply because I can't figure out for the life of me how to implement a working fork().
So meanwhile, we have spawn() as a replacement. exec() still exists, though.
2022-10-16 18:48:35 +02:00
d62eb6c791
Tests: Add test framework
2022-10-16 15:31:58 +02:00
f8154ce230
Kernel: Implement mkdir() from a single path
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This is done using dirname() and basename() :)
2022-10-16 14:45:25 +02:00
62d631f1b4
Kernel: Rename assert.h to kassert.h so IDEs pickup the kernel header instead of the userspace one
2022-10-15 12:56:48 +02:00
97461c7c1f
Prepare for moon 0.11
2022-10-14 19:49:52 +02:00
cdb73836b0
Some more multiple address space stuff
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This page-faults. This is because the memory where the ELF should be is all zeroes, which the CPU tries to interpret.
2022-10-14 17:37:51 +02:00
26211bd49f
It (almost) works now
...
The only thing doing weird stuff is exec(), so that's commented out and throws ENOSYS right now.
But we have two user tasks running in parallel, isolated from each other!
2022-10-14 16:46:00 +02:00
24272c57ef
Almost there!
2022-10-13 21:55:51 +02:00
ee712432bd
Some more multiple address space stuff
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This page-faults. This is because the memory where the ELF should be is all zeroes, which the CPU tries to interpret.
2022-10-13 21:14:39 +02:00
229b06c63b
Add basic address space infrastructure
2022-10-13 19:19:51 +02:00
0c451e504e
Kernel: Mounting /dev MUST succeed
2022-10-11 19:53:55 +02:00
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
