Bananymous
3bc7113cc5
sudo: fix some typos
2023-12-07 14:05:17 +02:00
Bananymous
24243268a6
Shell: do path resolution only if command doesn't contain '/'
2023-12-07 13:34:46 +02:00
Bananymous
2e858fddb5
Kernel: Remove obsolete Scheduler::is_valid_tid()
...
This function was used when processes could die at any point in time.
Now that processes can only die in known spots, we can be sure they
are not holding any locks. This allows much more performant locking.
2023-12-07 13:26:42 +02:00
Bananymous
12474addda
Kernel: Make Inodes use the new lock
...
Also remove old lock from TTY since it can just use the one Inode
already has.
2023-12-07 13:19:12 +02:00
Bananymous
7c25e4ce5a
Kernel: Implement RecursivePrioritySpinLock
...
This locks won't allow locking from userspace thread if there is
kernel thread waiting to lock this.
2023-12-07 13:18:21 +02:00
Bananymous
669d55707e
AOC2023: Use quick sort in solution
2023-12-07 11:55:28 +02:00
Bananymous
6caa9b6f95
BAN: implement quick sort and test for it
2023-12-07 11:55:28 +02:00
Bananymous
59ad639fa8
BAN: Fix simple iterator operator--()
2023-12-07 11:55:28 +02:00
Bananymous
43458cc74f
BAN: implement exchange sort and test for it
2023-12-07 11:55:28 +02:00
Bananymous
e935a33a4d
BAN: add value_type to iterators
2023-12-07 10:15:18 +02:00
Bananymous
536bb74d53
AOC2023: optimize hand score calculation
2023-12-07 09:26:17 +02:00
Bananymous
a872efdef2
BAN: implement basic swap
...
This will be improved, currently just works on general type T and
moves values between arguments.
2023-12-07 09:26:17 +02:00
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