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1080 Commits

Author SHA1 Message Date
Bananymous 10544db52e LibELF: We use BAN::Vector<uint8_t> as elf storage 
This is made possible by the dynamic kmalloc
 2023-06-18 23:29:23 +03:00
Bananymous 5e123031aa Kernel: kmalloc has now somewhat dynamic storage 
Allocations bigger than PAGE_SIZE and those not forced to be identity
mapped are now done on a GeneralAllocator. This allows us to use kmalloc
for big allocations; bigger than the fixed 1 MiB storage.

This is still a hack and the whole kmalloc will have to be rewritten at
some point, but for now this does the job :D
 2023-06-18 23:27:00 +03:00
Bananymous 388f530edd Kernel: Add GeneralAllocator::paddr_of 
Yoy can now query physical address of a virtual address for general
allocator allocation
 2023-06-18 23:25:51 +03:00
Bananymous d354cccd37 Kernel: Add enum for ISR name to number 2023-06-18 23:24:27 +03:00
Bananymous 714305ef56 Kernel: General allocator takes first valid vaddr as parameter 2023-06-17 22:23:34 +03:00
Bananymous f83ae1e9c6 Kernel: Move print during boot 2023-06-12 23:45:36 +03:00
Bananymous c38e8de6b5 BAN: Optional can be constructed inplace 2023-06-12 23:45:36 +03:00
Bananymous 97638f7ade BAN: Add operator-> and operator* to Optional 2023-06-12 22:25:14 +03:00
Bananymous 326a30d1af Userspace: Add u8sum 
This program caluculates the sum of bytes in file mod 256
 2023-06-12 20:36:16 +03:00
Bananymous 32e1473c94 Kernel: Make disk IO blocking thread safe 
This was causing a lot of deadlocks on vms without kvm accel
 2023-06-12 18:57:47 +03:00
Bananymous 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
Bananymous ce55422a24 Kernel: Remove Shell from kernel 
This is now obsolete since we have a userspace Shell.
 2023-06-12 02:04:52 +03:00
Bananymous 388cc7c3bb Base: add home directories for root and user 2023-06-12 02:03:13 +03:00
Bananymous 37f9404d93 BuildSystem: every file except /home/* is now owned by root 2023-06-12 02:03:13 +03:00
Bananymous 38dff41e25 Userspace: Shell processes PS1 '\~' as cwd and implement cd 2023-06-12 02:03:13 +03:00
Bananymous d360340b9e Userspace: init now sets HOME environment variable and cd's into HOME 2023-06-12 02:02:52 +03:00
Bananymous 0f63cfa43f Kernel/LibC: add SYS_{SET,GET}_PWD and chdir, getpwd 2023-06-12 02:02:52 +03:00
Bananymous 537780ee1e Kernel: allocate thread stacks from 0x300000 onwards 
I had a problem where thread stack was overlapping with elf loading
 2023-06-12 01:02:19 +03:00
Bananymous 4ca99fcb4e Kernel: Fix bug in elf loading 
We were allocating one extra page
 2023-06-12 00:59:19 +03:00
Bananymous eb7ee13f43 Userspace: init now default logins as user 2023-06-12 00:46:07 +03:00
Bananymous b2de706693 Userspace: Shell now uses PS1 as prompt if set 2023-06-12 00:45:47 +03:00
Bananymous 6a8180470d Userspace: Add color to ls 2023-06-11 23:00:19 +03:00
Bananymous 12d56be5cc Userspace: init now sets user and group ids before running their shell 2023-06-11 22:37:00 +03:00
Bananymous bb4d81a4fa Userspace: Add basic id that prints {,e}{uid,gid} of the current proc 2023-06-11 22:37:00 +03:00
Bananymous b254ade69b Kernel: Add SYS_GET_{,E}{UID,GID} 2023-06-11 22:37:00 +03:00
Bananymous ef4ebaa969 Kernel: Add syscalls for set{,e,re}{uid,gid} 2023-06-11 22:37:00 +03:00
Bananymous 99f8133b91 LibC: gid_t and id_t are now signed types 
I have no idea why I had made them unisigned
 2023-06-11 22:37:00 +03:00
Bananymous 51eb44bf40 Kernel/Userspace: Add basic init process 
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
Bananymous a0be415e09 BAN: Add basic Optional 2023-06-11 21:00:25 +03:00
Bananymous 071da18fa3 LibC: add strchrnul() 
this is a gnu libc extension
 2023-06-11 20:18:03 +03:00
Bananymous c62e820bcf Kernel: Add basic Credentials for the system 
Now filesystem access/open, etc confirm that you have access for rwxs
 2023-06-11 20:06:06 +03:00
Bananymous 46c34db6cb Kernel: GeneralAllocator and FixedWidth allocator invalidate TLB caches 
We were getting random exceptions when reallocating same addressess and
this fixes that problem :)
 2023-06-11 15:57:48 +03:00
Bananymous 25a2a4879c Userspace: add basic ls command 2023-06-11 03:38:44 +03:00
Bananymous 8be28012ee LibC: Reorder some syscalls 2023-06-11 03:29:22 +03:00
Bananymous 5aed186827 Kernel: Add SYS_OPENAT 2023-06-11 03:29:22 +03:00
Bananymous 91f812e17f Kernel: Exceptions will now enable interrupts before calling exit() 
this allows scheduler verification on reschedule() not panic
 2023-06-11 03:29:22 +03:00
Bananymous f0b22c48b2 LibC: implement close 2023-06-11 03:29:22 +03:00
Bananymous 52c4eebd77 Kernel: Implement SYS_FSTAT 2023-06-11 03:29:22 +03:00
Bananymous 24f0d26fce LibC: Implement basic dirent functionality 
We don't currently support seeking
 2023-06-11 03:29:22 +03:00
Bananymous 825ec221b7 Kernel: we don't panic anymore on unrecognized syscall 2023-06-11 00:18:48 +03:00
Bananymous e31080bce3 Kernel: allow open() call with O_SEARCH 2023-06-11 00:18:34 +03:00
Bananymous 7a5d5cabad Kernel: Add syscall for reading directory entries 2023-06-11 00:18:08 +03:00
Bananymous f7de310889 LibC: add missing O_EXEC and O_SEARCH 2023-06-11 00:17:18 +03:00
Bananymous e209ca7c82 Kernel: Rewrite directory listing so it can be integrated to libc 2023-06-11 00:17:18 +03:00
Bananymous ee8de77a90 Userspace: fix return values of cat and echo 2023-06-10 17:34:10 +03:00
Bananymous db49cbd6e2 Kernel: We now store the processes exit code 2023-06-10 17:31:56 +03:00
Bananymous e001eecb7b Userspace: add exit to shell 2023-06-09 01:51:23 +03:00
Bananymous 7f34d00c95 Userspace: add echo 2023-06-09 01:50:18 +03:00
Bananymous 2c18adbddd Userspace: add ^L support for shell 2023-06-09 01:24:33 +03:00
Bananymous 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