a11b5ae41f
Kernel: align userspace stacks
...
I was getting #GP on sse instructions
2023-08-03 18:09:48 +03:00
c67a7cec5b
LibC: fix typo
2023-08-02 22:10:12 +03:00
91f04ce250
Kernel: Change PageTable API
...
Getting free pages not reserves them, so you don't have to hold
the page table lock :)
2023-08-02 22:09:14 +03:00
926df2b276
Kernel: PageTable now supports reserved pages
...
You can now map pages as reserved, so that they will not be given
from get_free_page() or get_free_contiguous_pages().
2023-08-01 16:35:54 +03:00
9fe878bbec
Shell: Print if the process exited because of a signal
2023-08-01 14:24:36 +03:00
217dbca7b7
Kernel: Cleanup returns from any kind on interrupts
2023-08-01 14:23:50 +03:00
13852e865c
LibC: sys/wait.h now has proper exit status macros
...
We use the same format as basically every implementation
2023-08-01 10:32:04 +03:00
679d47131d
BuildSystem: Edit build flags regarding sse and warnings
2023-07-31 22:31:17 +03:00
8b1bccb79b
Kernel: store/load sse/mmx/fpu state on isr/irq/syscall
...
I haven't tested this yet but should be fine. This will be optimized
to only save state from threads that are using it
2023-07-31 22:28:57 +03:00
e86e755c51
Kernel: Generally improve signals
2023-07-31 22:28:18 +03:00
8ec6d4c9fc
LibC: we don't parse syscall arguments in unistd
...
We just call Kernel::syscall() with 5 arguments from the variadic function.
This was a necessary addition since the syscall() function
used over 2 KiB of stack space.
2023-07-31 22:24:11 +03:00
08cdf88586
Kernel: Cleanup signal trampoline
2023-07-30 15:58:35 +03:00
6f7d97cf94
Kernel: Remove is_in_syscall from Thread
2023-07-30 14:49:51 +03:00
5e434f5131
Kernel: Hardware exceptions now sends signals to userspace
2023-07-30 14:34:15 +03:00
a152d0aac5
Kernel: raise() now force sends signal
2023-07-30 14:17:07 +03:00
879706e6e9
Kernel: Signals are not queued anymore
...
Posix doesn't require signal queing if you don't use sigqueue() which
we don't support. Process also has its own pending signal mask.
2023-07-29 16:54:31 +03:00
00f1f30a08
Kernel: Userspace sets the foreground process and Shell handles ^C
2023-07-28 18:10:36 +03:00
a5813f9ba5
Kernel: TTY now sends SIGINT on ^C to foreground process
2023-07-28 18:10:09 +03:00
5652af3384
Kernel: Mark reading section from StorageDevice as terminate critical
2023-07-28 18:09:35 +03:00
22cd9af8cc
Kernel: Restructure process and thread termination
...
When we want to kill a process, we mark its threads as Terminating
or Terminated. If the thread is in critical section that has to be
finished, it will be in Terminating state until done. Once Scheduler
is trying to execute Terminated thread it will instead delete it.
Once processes last thread is marked Terminated, the processes will
turn it into a cleanup thread, that will allow blocks and memory
cleanup to be done.
2023-07-28 18:06:20 +03:00
a9cf9bceef
Kernel: Rewrite DiskCache
...
We now cache only clean pages since I don't want to think about
syncing the disk later.
2023-07-27 22:22:39 +03:00
6c0f864a6e
Kernel: Locks allow locking after locker is invalid
...
SpinLock and RecursiveSpinLock will now allow locking after the initial
locker is invalid. This allows us to kill threads even if they are holding
internal locks
2023-07-27 18:52:51 +03:00
e4509d9482
Kernel: DiskCache uses are now done without interrupts
...
This allows disk cache to not be invalid state after partial read/write
2023-07-27 18:52:51 +03:00
0f23e1f0f4
Kernel: Scheduler can now check if tid is valid
...
Tid can become invalid if the thread is already terminated
2023-07-27 18:34:06 +03:00
642a6aa4ad
Kernel: Process::exit() unblocks the whole lock before blocking
2023-07-24 22:29:59 +03:00
432c296b7b
Kernel: Implement SYS_GET_PID and SYS_TCSETPGID
...
we don't have consept of process groups yet
2023-07-24 22:29:59 +03:00
b576d373c4
Kernel: TTY now stores foreground process pid
...
this will be process pgid when we have process groups
2023-07-24 22:29:59 +03:00
522aa8e762
Kernel: add Thread::queue_signal()
2023-07-24 22:26:10 +03:00
146802fa4c
Kernel: Scheduler can now block threads based on tid
2023-07-24 22:24:21 +03:00
cc8af25d73
Kernel: remove Semaphore::is_blocked
...
this will not mean anything after semaphores can spuriously wake up
2023-07-24 22:23:13 +03:00
f5f4bf58ad
Kernel: add is_tty() to inode
2023-07-24 22:19:59 +03:00
3784da0d18
Kernel: you can now ask process if it is userspace process
2023-07-23 18:54:10 +03:00
9eb72f4392
Kernel: OpenFileDesctiptor can now return inode of fd
2023-07-23 18:52:33 +03:00
f7bf6d5e62
Kernel: Change signal kernel API
...
return rsp and rip are now stored per thread
2023-07-23 18:33:10 +03:00
adb14ba373
Kernel: Userspace signal handlers are now called one at a time
...
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
2023-07-23 13:34:53 +03:00
7391d91317
Kernel/LibC: add SYS_SIGNAL/signal()
2023-07-21 20:08:13 +03:00
2149cec29f
Kernel: Make signals more POSIX
2023-07-21 20:01:12 +03:00
ad756c36fc
Kernel/LibC: Add SYS_KILL/kill()
2023-07-21 19:27:38 +03:00
b56316e9da
Kernel: Scheduler now sends queued signals
2023-07-21 19:27:10 +03:00
a989c44211
Kernel: Make signals thread specific
2023-07-21 19:00:59 +03:00
217e5f81cc
Kernel: add default signal actions
2023-07-21 18:02:35 +03:00
5f2549b198
BuildSystem: Strip kernel. We will add the map once we use it
2023-07-21 15:47:31 +03:00
dcd4d0daeb
Kernel/LibC: Add bareboness signals
...
You can now call raise() to raise a signal. Signal handlers are
not yet supported, but the handling works :)
2023-07-21 15:45:02 +03:00
faf4220b38
Kernel: kernel memory takes now full pml4e
...
This allows flags to work properly
2023-07-21 13:47:05 +03:00
193ddaa2f6
Kernel: remove PAGE_FLAGS_MASK as that was not correct anymore
...
After I added NXE bit, the flags mask is no longer valid
2023-07-21 12:01:50 +03:00
46eb27883a
Kernel: Don't map kernel executable memory as writable
2023-07-21 11:17:39 +03:00
2db7cdb71e
Kernel: Syscalls now get the interrupt stack
2023-07-21 11:04:16 +03:00
5411c5aa4a
BAN: Fix function call in Optional
2023-07-21 10:57:46 +03:00
f8a1a10897
Kernel: add NullDevice to /dev/null
2023-07-20 00:06:22 +03:00
adbe13938e
Kernel: move Device.h to its own directory
2023-07-19 23:55:38 +03:00
