631cdd0204
x86_64/CPU: Skip null instruction pointers on stack trace generation
continuous-integration/drone/push Build is passing
2023-01-16 20:44:45 +01:00
1b807a4e06
arch/Timer: Make sure ARCH_TIMER_FREQ is a power of two
...
(avoid division and modulo, division is slow)
Fortunately, GCC will optimize divisions by powers of two to simple bitwise shifts :)
2023-01-16 19:43:05 +01:00
84c82a4e75
luna, kernel: More constness
continuous-integration/drone/push Build is passing
2023-01-10 19:31:41 +01:00
a8a64863c8
kernel, libc: Add clock_gettime()
2023-01-07 00:21:08 +01:00
87a4bc91d8
arch/x86_64: Nicer display for page faults that shows a human-readable version of the error code
2023-01-06 17:31:22 +01:00
fd8a0175d9
Add a syscall infrastructure (our baby program can print to the console now!)
continuous-integration/drone/push Build is passing
2023-01-05 22:39:56 +01:00
0aac6c888d
x86_64: Basic exit() syscall!
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User processes need to do something, amirite?
2023-01-05 21:53:48 +01:00
31ea030c7f
MMU: Add functions to create and delete userspace page directories
2023-01-05 21:50:26 +01:00
5854e5e530
Add newlines at end-of-file
2023-01-02 13:07:29 +01:00
7952d1d8a0
x86_64: Add basic keyboard support with an ASYNC DRIVER
continuous-integration/drone/push Build is passing
2022-12-26 19:59:18 +01:00
a1eca479d5
x86_64: Add a getter for the initial page directory
continuous-integration/drone/push Build is passing
2022-12-26 12:57:25 +01:00
2600acc96c
Thread: Add init_regs_user()
2022-12-26 12:46:07 +01:00
0054777e7d
x86_64: Warn if NX is not supported
2022-12-26 12:11:10 +01:00
08984e1673
x86_64: Create a has_flag() helper function and remove redundant clearing of reserved bits
2022-12-26 12:10:47 +01:00
59d69f684f
x86_64: Add general protection fault handler
continuous-integration/drone/push Build is passing
2022-12-24 11:49:47 +01:00
a3595e71a9
Update .clang-format
continuous-integration/drone/push Build is passing
2022-12-21 20:22:44 +01:00
2e8ea724a0
arch/x86_64: Refactor the stack tracing code to remove duplicate code
continuous-integration/drone/push Build is passing
2022-12-21 17:21:01 +01:00
a89ae9bed7
Run include-what-you-use
continuous-integration/drone/push Build is passing
2022-12-17 15:51:19 +01:00
95b0091622
Split off arch/x86_64/CPU.cpp into various files
continuous-integration/drone/push Build is passing
2022-12-17 15:45:06 +01:00
59c9d8f119
asm -> asm volatile
continuous-integration/drone/push Build is passing
2022-12-17 14:32:24 +01:00
abbed13f27
Add a 'pure' variant of cstyle_format which is infallible
...
If we cannot fail to output, it doesn't make sense to propagate errors. So if you're SURE there are no errors, use pure_cstyle_format().
If, however, output can fail, use cstyle_format().
This has a drawback of adding quite a bit of code duplication to Format.cpp.
Some of it is dealt using templates, but some code still remains duplicate.
2022-12-17 12:38:22 +01:00
9d6235e109
CPU: Add a pause() method
2022-12-17 10:45:55 +01:00
59765aa334
Rename String.h -> CString.h
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continuous-integration/drone/push Build is passing
Let's not confuse String.h with a managed string class, it's in fact the equivalent of the C stdlib's <string.h>
2022-12-16 20:40:04 +01:00
814672c771
Remove some redundant error propagation
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continuous-integration/drone/push Build is passing
Why can printing to the serial port or format onto a string fail?
Even if cstyle_format returns Result<usize>, we shouldn't always follow suit.
2022-12-16 18:32:29 +01:00
6cee208e62
Kernel: Enable -Wsign-conversion
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continuous-integration/drone/push Build is passing
For real this time, turns out me, being dumb, added it to Luna instead of the kernel.
2022-12-08 15:09:32 +01:00
c8302a4fef
Add convenience functions to print the stack trace directly
continuous-integration/drone/push Build is passing
2022-12-07 18:11:24 +01:00
0d437cfcca
Add support for stack traces
continuous-integration/drone/push Build is passing
2022-12-07 17:39:59 +01:00
d93d95f23c
Add sleeping mechanism
2022-12-07 16:11:59 +00:00
57517252d8
Add a state to Thread
2022-12-07 16:11:59 +00:00
c907e16311
x86_64: Invoke the scheduler every millisecond
2022-12-07 16:11:59 +00:00
12aa014a3d
Add a Thread class which can be part of a DoublyLinkedList
2022-12-07 16:11:59 +00:00
0bbd026660
CPU.h: pragma once
2022-12-07 16:11:59 +00:00
5d988c088f
Make idle_loop noreturn
2022-12-07 16:11:59 +00:00
c657b302c9
Timer: add raw_ticks
2022-12-07 16:11:59 +00:00
fd6a74e61c
CPU: Add an idle_loop method
2022-12-07 16:11:59 +00:00
287c4ab060
Run clang-format
2022-12-07 16:11:59 +00:00
bbfaa4645a
Add a should_invoke_scheduler method
2022-12-07 16:11:59 +00:00
1badc40a4a
Run include-what-you-use everywhere
2022-12-07 11:40:02 +01:00
8ff9cb4b96
x86_64: Add a friendlier handler for page faults
continuous-integration/drone/push Build is passing
2022-12-05 21:02:21 +01:00
762131a425
Make more constexpr
2022-12-05 16:43:52 +01:00
2eaa458555
Remove release_value call
2022-12-05 16:41:39 +01:00
1e3706ac01
Make ARCH_PAGE_SIZE and ARCH_TIMER_FREQ known at compile-time
2022-12-05 16:36:41 +01:00
4f183958e3
General constness + [[gnu::packed]] everywhere
2022-12-05 16:13:38 +01:00
58ecf11424
Make all refs to the bootboot structure const
2022-12-05 13:04:01 +01:00
c7ab6bc2d3
Reorganize the luna/ directory so that headers aren't in the top level include path
2022-12-04 12:42:43 +01:00
bed29e71af
Replace some uses of check() with expect()
2022-12-04 12:25:16 +01:00
985d45ddfb
Switch to logging functions everywhere
2022-11-30 17:16:36 +01:00
d2856d8812
Provide meaningful error numbers
2022-11-30 17:13:59 +01:00
29dad5651d
Move __check_failed to Log.cpp so it can be logged across all backends
2022-11-30 17:12:06 +01:00
1ed51d11cb
Do not push unused values
2022-11-23 19:37:25 +01:00
82893fa3a4
Introduce a kernel_yield function to use once a scheduler is implemented
2022-11-23 19:34:04 +01:00
7230eceb4d
x86_64/Timer: Show explanatory message on static assertion fail
2022-11-23 18:58:39 +01:00
88f588a0c5
Make ARCH_TIMER_FREQ less frequent so it is more accurate (I hope)
2022-11-23 18:00:09 +01:00
43e26e583c
Calculate the boot timestamp in UNIX time for further usage
2022-11-20 18:30:40 +01:00
d96cb73995
Rename physical "pages" to "frames"
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AFAIK, this is the proper naming scheme. "Pages" are virtual, and "frames" physical.
2022-11-19 22:27:08 +01:00
847f2b4f4c
Replace more usage of stdint.h types with Luna's Types.h
2022-11-19 22:25:03 +01:00
83bcac7a16
Kernel: Introduce a timer interface
2022-11-19 20:01:01 +01:00
424b069d55
Kernel: Start the call stack with a null RBP on x86_64
2022-11-19 18:38:32 +01:00
70c6b78e35
Organize source tree
2022-11-19 17:59:49 +01:00
8cae20a82c
Move __check_failed out of line so anyone can implement it
2022-11-19 17:20:10 +01:00
b8c136eeb4
Make a common header for attribute shorthands
2022-11-19 17:18:51 +01:00
648bd3fb61
Switch format.h to use Result
2022-11-19 16:13:25 +01:00
31673c0ac9
Introduce format attribute
2022-11-19 15:53:58 +01:00
603ff46d8c
Add a format implementation
2022-11-19 12:30:36 +01:00
762ca844d8
Add CPU::platform_string
2022-11-18 21:04:53 +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
9d318d50aa
Use TRY in MMU.cpp
2022-11-16 20:37:41 +01:00
2c9329928c
Replace page_size (function) with ARCH_PAGE_SIZE (constant)
2022-11-16 20:37:32 +01:00
30ac95bcf8
Use usize/isize instead of (s)size_t
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Since we're using Rust-style integer types already, why not go all in?
2022-11-16 20:30:34 +01:00
7f15ba0ac5
Add some interrupt handling
2022-11-16 17:37:18 +01:00
df8666fd73
Remove unneeded label
2022-11-15 20:47:50 +01:00
bb46cd890b
Add GDT and IDT setup and loading + NX if supported
2022-11-15 20:41:59 +01:00
c319336e3d
Add a CPU interface
2022-11-15 19:10:32 +01:00
e16324887f
MMU: Properly clear flags
2022-11-15 19:10:19 +01:00
ae235e5538
MMU: unmap and remap for x86_64
2022-11-13 16:51:21 +01:00
ba1bf72e1b
Remove unused include
2022-11-13 16:32:28 +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
82c2381ac9
Serial printing!!
2022-11-13 10:30:10 +01:00
