Bananymous
efd8be8207
AOC2023: implement day7
2023-12-07 07:56:56 +02:00
Bananymous
06a84da844
Userspace: Implement barebones sudo
...
This doesn't do any password checking or anything. Just sets uid and
gid before execvp()
2023-12-06 18:15:42 +02:00
Bananymous
24b71d1170
Kernel: Appreciate setuid and setgid bits executables
2023-12-06 18:14:27 +02:00
Bananymous
0dc168a8c0
LibC: Implement basic execvp
2023-12-06 18:14:00 +02:00
Bananymous
76049b2e13
LibC: Implement and fix some string.h functions
2023-12-06 18:13:34 +02:00
Bananymous
393ac33e3c
Kernel: Make sys_nanosleep interruptable by signals
2023-12-06 16:22:24 +02:00
Bananymous
deeb6d2756
Kernel: Cleanup sys_sleep() and TTY::read_impl
2023-12-06 16:21:22 +02:00
Bananymous
1ac831d4b1
Kernel: Add API to block on semaphore until unblock or EINTR
2023-12-06 16:13:07 +02:00
Bananymous
534969df32
Kernel: Scheduler::unblock_thread() wakes sleeping threads
2023-12-06 16:12:37 +02:00
Bananymous
976ae64f88
LibC: make sleep() set errno if sleep woke up early
2023-12-06 13:13:43 +02:00
Bananymous
a12ffaa8a2
Kernel: Make sleep syscall interruptable
2023-12-06 13:13:37 +02:00
Bananymous
ff8b3be8dc
Userspace: implement basic sleep command
2023-12-06 13:05:53 +02:00
Bananymous
56008869d6
Shell: Handle keyboard input that was interrupted by signal
2023-12-06 13:04:33 +02:00
Bananymous
1c78671078
Kernel: Rework all signal code
...
Signal handling code was way too complex. Now everything is
simplified and there is no need for ThreadBlockers.
Only complication that this patch includes is that blocking syscalls
have to manually be made interruptable by signal. There might be some
clever solution to combat this is make this happen automatically.
2023-12-06 13:02:17 +02:00
Bananymous
cdcc36efde
Kernel: Remove unnecessary raise syscall
2023-12-06 13:00:45 +02:00
Bananymous
336daa2cc5
Kernel: Add helper for checking whether segment is from userspace
2023-12-06 12:57:13 +02:00
Bananymous
531211e09d
AOC2023: implement day6
2023-12-06 07:27:25 +02:00
Bananymous
894065a67e
LibC: cleanup and fix fgets
...
My quick fix for fgets wrote non-nullterminated newline if size was
one.
POSIX doesn't specify what happens if size == 0, so I do the same as
glibc and return NULL without setting errno.
2023-12-05 10:00:43 +02:00
Bananymous
82cb2ea20b
AOC2023: implement day5
2023-12-05 09:13:13 +02:00
Bananymous
95fc894303
LibC: fix fgets when reading empty line
2023-12-05 07:46:14 +02:00
Bananymous
622007f2ee
Shell: Verify that command exists before executing it
...
This prevents page fault somewhere when executing non-existing
commands.
2023-12-04 22:57:27 +02:00
Bananymous
cf76d2e7d9
AOC2023: remove unnecessary loop
2023-12-04 17:54:10 +02:00
Bananymous
41f8974080
AOC2023: implement day4
2023-12-04 17:51:27 +02:00
Bananymous
3ed25425a3
AOC2023: implement day3
...
Solution to second puzzle is not optimal, it definately should be
O(1) space, but I didn't want to think about it.
2023-12-03 17:07:09 +02:00
Bananymous
49f8c4268f
AOC2023: implement day2
2023-12-02 16:10:37 +02:00
Bananymous
70c224d8ea
AOC2023: Cleanup day1 code
2023-12-01 13:31:55 +02:00
Bananymous
6a7335e5c9
AOC2023: implement day1
2023-12-01 12:38:01 +02:00
Bananymous
3aaa755c51
AOC2023: update buildsystem
2023-12-01 12:38:01 +02:00
Bananymous
c140dd2a65
Kernel: Fix keyboard layout for underscore
2023-12-01 12:31:16 +02:00
Bananymous
dabd79afa7
Userspace: Prepare aoc2023 environment :)
2023-12-01 01:22:53 +02:00
Bananymous
6ccb1bbbf9
init: set default termios on every username prompt
...
Before if e.g. Shell crashed init would have broken termios
2023-12-01 01:22:53 +02:00
Bananymous
9b841cb823
BuildSystem/Kernel: Enable -Wextra and -Werror in kernel
...
Only needed to fix some unused variable bugs
2023-12-01 01:22:53 +02:00
Bananymous
c1cac43f28
BuildSystem: Don't build lai with -Wstack-usage
...
Lai has two functions that trigger warnings on gcc. There isn't
really anything I can do about it, so just disable the warning
2023-12-01 01:22:53 +02:00
Bananymous
8564b59e14
image: Remove inheritance from Netbpm
...
This inheritance made no sense
2023-11-29 20:56:05 +02:00
Bananymous
fdb6dc94ba
Kernel: cast between inheritance with static_cast
...
using reinterpret_cast is not a good idea. preferably we would use
dynamic_cast, but that is not possible since kernel is compiled with
-fno-rtti.
2023-11-29 20:50:57 +02:00
Bananymous
327b330338
Kernel: Make internal framebuffer bpp constexpr defined in libc
2023-11-29 20:07:33 +02:00
Bananymous
7090388c70
cp: allow copying all files except directories
...
The old condition seemed odd. This allows taking screen shots by
copying the /dev/fb0.
2023-11-29 16:13:40 +02:00
Bananymous
ff550785a7
Userspace: Implement basic image rendering for Netbpm
...
You can now render Netbpm (P6) format image to framebuffer using
`image` command. I added basic test image to
/usr/share/images/sample.ppm
2023-11-29 16:11:35 +02:00
Bananymous
d7a3aca5d4
Kernel: Use the correct bpp when writing to framebuffer
2023-11-29 00:31:24 +02:00
Bananymous
056586486d
Shell: make clear use \e[2J instead of \e[J
...
This makes kernel to actually clear the full screen. If framebuffer
did not fit font exactly last row would be left partially uncleared
2023-11-28 23:55:37 +02:00
Bananymous
42a1d26d5b
Userspace: Implement basic test for framebuffer mmap
2023-11-28 23:52:22 +02:00
Bananymous
cc572af390
Kernel: Implement mmaping for framebuffer device
2023-11-28 23:51:56 +02:00
Bananymous
4275d2ce48
Kernel: Add framebuffer device to devfs
2023-11-28 23:51:28 +02:00
Bananymous
4a87d6052b
Kernel: Add API for implementing mmappable devices
2023-11-28 23:50:49 +02:00
Bananymous
d86ecf4f61
Kernel: Reading from negative offset in fb dev gives out info
2023-11-28 23:50:11 +02:00
Bananymous
09b7cb2f33
Kernel/LibC: Implement pread()
2023-11-28 23:47:30 +02:00
Bananymous
4c3da66c92
mmap-shared-test: Add test case for msync
2023-11-22 22:45:16 +02:00
Bananymous
60e755210c
Kernel/LibC: Implement very basic msync
2023-11-22 22:44:06 +02:00
Bananymous
ab9954fe73
Kernel: Delete the now obsolete VesaTerminalDriver
2023-11-22 21:59:11 +02:00
Bananymous
fd18071975
Kernel: Implement TerminalDriver for Framebuffer device
...
Use this new FramebufferTerminalDriver for terminal instead of the
old VesaTerminalDriver. Only drawback with this is that framebuffer
device can only be intialized after DevFS is initialized.
2023-11-22 21:57:17 +02:00
Bananymous