22 Commits

Author SHA1 Message Date
7efcc06090
kernel+init+sh: Implement parent processes and waitpid(-1, ...)
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2023-03-24 17:37:04 +01:00
41c7e3780d
kernel: Add support for exit codes and start preparing for waitpid() 2023-03-23 22:25:56 +01:00
51f0bdff0e
kernel+libc: Add O_NONBLOCK
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2023-03-19 11:25:14 +01:00
54f2d35416
kernel: Add the fork() system call 2023-03-18 23:45:48 +01:00
b54a7f3a80
kernel+libc: Add O_* flags and parse them in open()
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O_RDONLY, O_WRONLY, O_RDWR, O_TRUNC, O_CREAT and O_EXCL are fully implemented.

O_APPEND is partially implemented.

Other flags are not here yet.
2023-03-12 14:43:58 +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)
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
ca85a69442
kernel: Save floating-point environment when switching in and out of userspace threads 2023-03-07 20:59:11 +01:00
3a84e4998c
kernel/Thread: Add FIXME
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2023-01-31 17:02:49 +01:00
139c0b5eb1
Kernel: Make a UserVM wrapper around Bitmap and use that to allocate user VM
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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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
ea89b92675
Store a bit more stuff in a thread :) 2023-01-05 21:50:53 +01:00
5854e5e530
Add newlines at end-of-file 2023-01-02 13:07:29 +01:00
a11a5dec1f
DoublyLinkedList -> LinkedList
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2022-12-19 12:43:23 +01:00
751377de0a
Scheduler: Make it possible for a thread to stop existing
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2022-12-18 18:43:34 +01:00
1b92fe36b4
Store the stack inside a thread 2022-12-18 18:43:17 +01:00
a89ae9bed7
Run include-what-you-use
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2022-12-17 15:51:19 +01:00
d5b9ff1569
Remove unused function definition
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2022-12-17 15:30:57 +01:00
6e5d2b5335
Thread: Make g_next_id atomic 2022-12-17 10:50:49 +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
12aa014a3d Add a Thread class which can be part of a DoublyLinkedList 2022-12-07 16:11:59 +00:00