bf617036c7
Kernel: Rework syscall calling
...
I removed the intermediate function when calling syscalls. Now syscall
handler calls the current process automatically. Only exception is
sys_fork, since it needs a assembly trampoline for the new thread.
2023-06-12 14:16:48 +03:00
ce55422a24
Kernel: Remove Shell from kernel
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This is now obsolete since we have a userspace Shell.
2023-06-12 02:04:52 +03:00
388cc7c3bb
Base: add home directories for root and user
2023-06-12 02:03:13 +03:00
37f9404d93
BuildSystem: every file except /home/* is now owned by root
2023-06-12 02:03:13 +03:00
38dff41e25
Userspace: Shell processes PS1 '\~' as cwd and implement cd
2023-06-12 02:03:13 +03:00
d360340b9e
Userspace: init now sets HOME environment variable and cd's into HOME
2023-06-12 02:02:52 +03:00
0f63cfa43f
Kernel/LibC: add SYS_{SET,GET}_PWD and chdir, getpwd
2023-06-12 02:02:52 +03:00
537780ee1e
Kernel: allocate thread stacks from 0x300000 onwards
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I had a problem where thread stack was overlapping with elf loading
2023-06-12 01:02:19 +03:00
4ca99fcb4e
Kernel: Fix bug in elf loading
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We were allocating one extra page
2023-06-12 00:59:19 +03:00
eb7ee13f43
Userspace: init now default logins as user
2023-06-12 00:46:07 +03:00
b2de706693
Userspace: Shell now uses PS1 as prompt if set
2023-06-12 00:45:47 +03:00
6a8180470d
Userspace: Add color to ls
2023-06-11 23:00:19 +03:00
12d56be5cc
Userspace: init now sets user and group ids before running their shell
2023-06-11 22:37:00 +03:00
bb4d81a4fa
Userspace: Add basic id that prints {,e}{uid,gid} of the current proc
2023-06-11 22:37:00 +03:00
b254ade69b
Kernel: Add SYS_GET_{,E}{UID,GID}
2023-06-11 22:37:00 +03:00
ef4ebaa969
Kernel: Add syscalls for set{,e,re}{uid,gid}
2023-06-11 22:37:00 +03:00
99f8133b91
LibC: gid_t and id_t are now signed types
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I have no idea why I had made them unisigned
2023-06-11 22:37:00 +03:00
51eb44bf40
Kernel/Userspace: Add basic init process
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This process parses /etc/passwd and promps login screen.
When an username is entered, it will launch that users shell
2023-06-11 22:37:00 +03:00
a0be415e09
BAN: Add basic Optional
2023-06-11 21:00:25 +03:00
071da18fa3
LibC: add strchrnul()
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this is a gnu libc extension
2023-06-11 20:18:03 +03:00
c62e820bcf
Kernel: Add basic Credentials for the system
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Now filesystem access/open, etc confirm that you have access for rwxs
2023-06-11 20:06:06 +03:00
46c34db6cb
Kernel: GeneralAllocator and FixedWidth allocator invalidate TLB caches
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We were getting random exceptions when reallocating same addressess and
this fixes that problem :)
2023-06-11 15:57:48 +03:00
25a2a4879c
Userspace: add basic ls command
2023-06-11 03:38:44 +03:00
8be28012ee
LibC: Reorder some syscalls
2023-06-11 03:29:22 +03:00
5aed186827
Kernel: Add SYS_OPENAT
2023-06-11 03:29:22 +03:00
91f812e17f
Kernel: Exceptions will now enable interrupts before calling exit()
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this allows scheduler verification on reschedule() not panic
2023-06-11 03:29:22 +03:00
f0b22c48b2
LibC: implement close
2023-06-11 03:29:22 +03:00
52c4eebd77
Kernel: Implement SYS_FSTAT
2023-06-11 03:29:22 +03:00
24f0d26fce
LibC: Implement basic dirent functionality
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We don't currently support seeking
2023-06-11 03:29:22 +03:00
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
f7de310889
LibC: add missing O_EXEC and O_SEARCH
2023-06-11 00:17:18 +03:00
e209ca7c82
Kernel: Rewrite directory listing so it can be integrated to libc
2023-06-11 00:17:18 +03:00
ee8de77a90
Userspace: fix return values of cat and echo
2023-06-10 17:34:10 +03:00
db49cbd6e2
Kernel: We now store the processes exit code
2023-06-10 17:31:56 +03:00
e001eecb7b
Userspace: add exit to shell
2023-06-09 01:51:23 +03:00
7f34d00c95
Userspace: add echo
2023-06-09 01:50:18 +03:00
2c18adbddd
Userspace: add ^L support for shell
2023-06-09 01:24:33 +03:00
97c7fc42d1
Kernel: SpinLocks now reschedule if they cannot aquire the lock
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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()
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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()
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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
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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
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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
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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
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exec functions will search files from PATH
2023-06-05 22:51:02 +03:00
6aff459e1c
BAN: add StringView::contains(char)
2023-06-05 22:51:02 +03:00
0b1b4d8f7e
Kernel: exec now has better posix errors
2023-06-05 21:12:08 +03:00
Bananymous