825ec221b7
Kernel: we don't panic anymore on unrecognized syscall
2023-06-11 00:18:48 +03:00
e31080bce3
Kernel: allow open() call with O_SEARCH
2023-06-11 00:18:34 +03:00
7a5d5cabad
Kernel: Add syscall for reading directory entries
2023-06-11 00:18:08 +03:00
e209ca7c82
Kernel: Rewrite directory listing so it can be integrated to libc
2023-06-11 00:17:18 +03:00
db49cbd6e2
Kernel: We now store the processes exit code
2023-06-10 17:31:56 +03:00
97c7fc42d1
Kernel: SpinLocks now reschedule if they cannot aquire the lock
...
This allows us to not actually spin doing nothing while waiting for
another (not executing) to release the lock. This api won't probably
work when we get to SMP
2023-06-09 00:53:32 +03:00
7da0627f8e
Kernel: Process::exit() now uses the new Scheduler::reschedule()
...
We use this new function while waiting for all blocking threads to
resume execution
2023-06-09 00:49:19 +03:00
27cef23823
Kernel: Scheduler now has reschedule()
...
This can be called from anywhere and just causes the scheduler to
schedule the next thread. This is more efficient and verbose version
of Scheduler::set_current_thread_sleeping(0), since we don't have
to wake other threads or do other verifications.
2023-06-09 00:47:17 +03:00
b7fc2dc3d0
Kenrel: Rename Scheduler::reschedule -> Scheduler::timer_reschedule
2023-06-09 00:41:43 +03:00
8af390e0f6
Kernel: Big commit. Rewrite ELF loading code
...
We now load ELF files to VirtualRanges instead of using kmalloc.
We have only a fixed 1 MiB kmalloc for big allocations and this
allows loading files even when they don't fit in there.
This caused me to rewrite the whole ELF loading process since the
loaded ELF is not in memory mapped by every process.
Virtual ranges allow you to zero out the memory and to copy into
them from arbitary byte buffers.
2023-06-09 00:37:43 +03:00
96d6453ea8
Kernel: PageTableScope locks the PageTable before disabling interrupts
...
This allows replacing some PageTableScopes with PageTable::lock()
2023-06-09 00:34:41 +03:00
2b9900e56e
Kernel: get_free_contiguous_pages works with non-page aligned addresses
...
also fix bug in ordering
2023-06-06 02:03:23 +03:00
86f58f60cb
LibC: implement setenv, unsetenv, putenv
2023-06-05 22:51:02 +03:00
064ce568c2
Kernel: add basic support for environment variables
...
exec functions will search files from PATH
2023-06-05 22:51:02 +03:00
0b1b4d8f7e
Kernel: exec now has better posix errors
2023-06-05 21:12:08 +03:00
b0e9ab0519
Kernel/LibC: pass environ pointer to process
2023-06-05 21:12:08 +03:00
668517a723
Kernel: TTY now actually flushes on ^D
2023-06-05 20:21:46 +03:00
649f08ec78
Kernel: verify that loaded elfs are executable
2023-06-05 19:29:32 +03:00
5425394880
Kernel: TTY now supports CSI s and u
...
These are commonly supported values to save and load cursor
position
2023-06-05 18:19:13 +03:00
9d64dbd5c2
Kernel/LibC: add SYS_STAT and stat(), lstat()
2023-06-05 14:37:14 +03:00
b68d5a5833
Kernel: Add SYS_WAIT
...
This syscall waits for a given pid.
2023-06-04 18:00:52 +03:00
94d2090777
Kernel: fork() now clones current thread
...
This is how posix specifies thread cloning during fork
2023-06-04 17:40:37 +03:00
e97585daf9
Kernel: Process FixedWidthAllocators come now in 4 sizes
2023-06-04 01:26:43 +03:00
924fc2118c
Kernel: Allocators are now stored in UniqPtr
...
This allows proper memory management, we had some memory leak
2023-06-04 01:25:57 +03:00
51f4c0c750
Kernel: make load_elf() its own function
2023-06-04 01:24:11 +03:00
37b93da650
Kernel: PhysicalRange maps its nodes to kernel vaddr space
...
This keeps the lower half of address space cleaner
2023-06-04 01:20:47 +03:00
35e739dcdd
Kernel: reorder process exit steps
2023-06-04 01:19:04 +03:00
8352392b38
Kernel: You can specify first vaddr for getting free pages
2023-06-04 01:15:48 +03:00
dc1aff58ed
Kernel: PAGE_FLAG_MASK is now only 0xF
...
We don't care currenly about anything but the last few bits
2023-06-03 20:08:13 +03:00
9f75d9cfe5
Kernel: PageTable now has debug_dump
...
This dumps all the mapped pages and their flags
2023-06-03 20:08:13 +03:00
a42af7e973
Kernel: boot.S is back to 2 MiB pages
...
bochs doesn't seem to support 1 GiB pages
2023-06-03 18:53:36 +03:00
a4cb5d8360
Kernel: Inode/Device detection is done with overridden bool functions
2023-06-03 13:28:15 +03:00
da7f09cf82
Kernel: Heap will return 0 if no free page is available
2023-06-03 02:55:31 +03:00
0166af472b
Kernel: DiskCache will try to shrink_to_fit after cache cleanup
2023-06-03 02:55:22 +03:00
884d986bd6
Kernel: DiskCache won't crash when running out of kmalloc memory
2023-06-03 02:36:20 +03:00
59b807189f
Kernel: add basic disk cache
...
ATADevices now add disk cache to themselves
2023-06-03 02:23:14 +03:00
fb1c7015b1
Kernel: Shell 'memory' now prints heap memory usage
2023-06-03 02:22:18 +03:00
9bd4d68f9c
Kernel: Shell ls and stat now properly show symlinks
2023-06-02 18:22:56 +03:00
633cb4f282
Kernel: VFS now has max link depth of 100
2023-06-02 12:50:40 +03:00
4d4d0e26a9
Kernel: Symlinks are now working
...
We still have to implement loop or depth detection
2023-06-02 11:43:46 +03:00
0ffd2a5c1d
Kernel: Shell can now list symlinks
2023-06-01 00:25:53 +03:00
232fdcb82c
Kernel: add basic support for symlinks
2023-06-01 00:24:45 +03:00
0ccc23d544
Kernel: Shell opens standard files
2023-05-31 23:14:15 +03:00
02f0239016
Kernel: Cleanup exec code
2023-05-31 22:36:05 +03:00
ab61b49aca
Kernel: Add SYS_EXEC syscall
2023-05-31 20:57:33 +03:00
4da1d6fd27
Kernel: Implement Process::exec()
2023-05-31 20:56:29 +03:00
909e847369
Kernel: Move userspace entry functions to Process instead of Thread
2023-05-31 19:31:10 +03:00
eafa09fecf
Kernel: boot.S maps GiB as single pdpte
2023-05-31 00:51:15 +03:00
8175348284
Kernel: Fix comment
2023-05-31 00:51:15 +03:00
b2832cb47a
Kernel: PageTable destructor works now
...
we are successfully booting higher half kernel now :)
2023-05-31 00:44:14 +03:00
Bananymous