1528c772fd
kernel: Store the full command line of a process
2023-09-04 11:43:11 +02:00
4a654bf093
kernel: Handle OOMs better and without deadlocking
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Use a separate task to do it.
Also fix a bug where the init thread would get no kernel stack ever since 5f698b477.
2023-08-17 20:14:33 +02:00
b8f81502b8
kernel: Fix some debug messages that are not shown by default
2023-08-16 09:03:25 +02:00
52064e0317
libc+kernel: Add alarm() and getpagesize()
2023-08-11 18:09:12 +02:00
4c87d72b44
kernel/binfmt: Add documentation + support script interpreters being scripts themselves
continuous-integration/drone/push Build is passing
2023-07-31 20:41:18 +02:00
1c76675e40
kernel: Add a framework to add more executable formats, possibly from userspace
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This lets us implement shebangs and possibly an interface similar to Linux's binfmt_misc.
2023-07-30 18:25:44 +02:00
fb08594a18
kernel: Separate FileDescriptors and OpenFileDescription
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Also, add a did_close() callback for OpenFileDescriptions losing all their references.
2023-07-30 11:33:06 +02:00
11df5a2ec3
kernel: Use pid_t internally for process IDs
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continuous-integration/drone/push Build is passing
This removes a bunch of casts between pid_t and u64, and makes more sense since pid_t is literally the data type for process IDs.
2023-07-26 21:32:00 +02:00
9f45026cc2
kernel+sh: Implement interruptible syscalls
2023-07-12 13:48:43 +02:00
15d6aae701
kernel+libc: Implement basic signals
2023-07-10 19:46:57 +02:00
b920ffee42
kernel: Don't use an active directory for the idle thread
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Just take the currently used directory.
2023-07-10 13:04:18 +02:00
503dc72686
kernel: Set kernel threads' initial active directories to avoid taking the first directory they use
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This ends up being init's directory, which is fine when init's directory doesn't change...
but a little less fine when the init process calls exec()...
which is what it does in the new configuration I'm testing...
2023-07-10 13:04:00 +02:00
5e564e9ae3
kernel: Move Thread::self_directory to UserVM
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Since this is only used by user threads, UserVM is a convenient/related place to store the PageDirectory in a RAII manner.
2023-07-09 20:32:42 +02:00
e9e7b22323
kernel: Separate a thread's page directory into two
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continuous-integration/drone/pr Build is passing
The self directory, and the active directory. The active directory is the one the thread is currently using,
and the self directory is the one the thread owns.
This lets us keep track of both, which fixes ext2 executables crashing the system.
2023-06-25 20:35:40 +02:00
5f4103251a
kernel: Preserve the new page directory while exec() is running
2023-06-25 20:35:40 +02:00
b7bdec9ece
kernel: Add a bunch more config definitions and hide debug messages behind them
2023-06-18 20:18:00 +02:00
7cace9a0d7
kernel: Provide more meaningful panic messages for critical failures
2023-06-17 19:43:25 +02:00
7a78609a85
kernel: Preserve kernel threads' page directories when they differ from the regular kernel page directory
continuous-integration/drone/push Build is passing
2023-06-17 00:49:31 +02:00
d0b65674e6
kernel: Fix 0-delay sleeps blocking the thread forever
2023-06-08 19:57:38 +02:00
01111442d3
kernel: Add the getrusage() system call
2023-05-20 12:48:07 +02:00
8f6bd29da3
kernel: Make file system reference counting work for current directories
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continuous-integration/drone/push Build is passing
Also, make pipes usable again.
2023-05-17 20:37:01 +02:00
1f4c4928cc
kernel+libc+apps: Add mount and umount syscalls, libc wrappers, and utilities
continuous-integration/drone/push Build is passing
2023-05-17 20:30:15 +02:00
293a992133
kernel: Add a kernel_wait_for_event() function to avoid weird calls to kernel_wait in kthreads
continuous-integration/drone/push Build is passing
2023-05-04 23:43:00 +02:00
4a7f68b989
kernel: Add a convenience wake_up() function
2023-05-04 23:35:54 +02:00
3a1c22bb93
kernel: Add keyboard combinations for debug information dumps
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Ctrl+Alt+E: Dump threads
Ctrl+Alt+M: Dump memory usage
Ctrl+Alt+H: Dump heap state
2023-05-04 23:32:48 +02:00
96f3d29d37
kernel: Tell the reap thread to run when it's needed, instead of checking every 200 ms
2023-05-04 23:06:00 +02:00
42eb0a1d74
kernel: Freeze waitpid()'s calling thread until a child tells us it's done, instead of polling it every 10 ms
2023-05-04 23:03:31 +02:00
4616997f5b
kernel: Store a thread's parent directly instead of its parent's PID
2023-05-04 22:58:04 +02:00
7b4cfd52cd
Scheduler: Don't search threads spawned before the current thread to find children
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continuous-integration/drone/push Build is passing
Children will always be spawned later (and thus have a higher PID) than their parent.
2023-04-28 15:19:01 +02:00
bcdec62f51
kernel: Allow returning early from Scheduler::for_each_child
2023-04-28 15:13:53 +02:00
77dcfab5ef
kernel: Run the initialization process in a thread
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continuous-integration/drone/push Build is passing
This way we can give it more stack and also reclaim it later!
2023-04-28 13:23:07 +02:00
df95126ccd
kernel: Remove unneeded debug logs & random cleanups
continuous-integration/drone/push Build is passing
2023-04-14 21:10:38 +02:00
f6f9254eb4
kernel: Add process and filesystem UIDs and GIDs
2023-04-08 13:12:49 +02:00
3a28771520
kernel+libc+apps: Add support for environment variables
2023-04-07 15:03:38 +02:00
d48d0efb07
kernel: Add names to threads
continuous-integration/drone/push Build is passing
2023-03-24 21:05:38 +01:00
7efcc06090
kernel+init+sh: Implement parent processes and waitpid(-1, ...)
continuous-integration/drone/push Build is passing
2023-03-24 17:37:04 +01:00
b6fb5f3dfe
kernel+libc: Implement waitpid()
continuous-integration/drone/push Build is passing
2023-03-23 22:42:24 +01:00
54f2d35416
kernel: Add the fork() system call
2023-03-18 23:45:48 +01:00
8c72e9a49a
kernel: Add an exec() system call
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continuous-integration/drone/push Build is passing
Doesn't support arguments or environment for now.
2023-03-16 22:44:58 +01:00
bd572473ad
kernel: Remove FileDescriptorTable and add a helper to resolve fds to FileDescriptors
2023-03-12 13:57:38 +01:00
810c4bc257
kernel+libc: Start interfacing with the VFS from userspace (open & close)
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This commit adds open and close syscalls to the kernel, and adds matching wrappers to libc.
No read/write support, so file descriptors are kind of useless for now.
2023-03-11 17:45:20 +01:00
ff468db675
kernel/ELF+Scheduler: Use VFS instead of TarStream
continuous-integration/drone/push Build is passing
2023-03-11 10:34:08 +01:00
ca85a69442
kernel: Save floating-point environment when switching in and out of userspace threads
2023-03-07 20:59:11 +01:00
35501407c1
kernel: Stop shouting when creating threads
continuous-integration/drone/push Build is passing
2023-01-25 21:25:34 +01:00
139c0b5eb1
Kernel: Make a UserVM wrapper around Bitmap and use that to allocate user VM
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This lets us allocate more than one page of memory from the user side.
2023-01-13 19:05:20 +01:00
586ca19b62
Add a VERY BASIC and hacky way of allocating memory from userspace
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continuous-integration/drone/push Build is passing
Only supports one-page allocations and doesn't have libc wrappers, which means it has to be invoked using syscall().
2023-01-11 23:02:42 +01:00
84c82a4e75
luna, kernel: More constness
continuous-integration/drone/push Build is passing
2023-01-10 19:31:41 +01:00
8ee634d19b
Kernel/Scheduler: Display addresses starting with 0x when creating threads
continuous-integration/drone/push Build is passing
2023-01-07 12:02:14 +01:00
a33a72915e
Scheduler: Creation, destruction and switching of userspace tasks :))
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From a TarStream. Not optimal, but OK for the moment.
2023-01-05 21:52:26 +01:00
5854e5e530
Add newlines at end-of-file
2023-01-02 13:07:29 +01:00
