Bananymous/banan-os
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Author SHA1 Message Date
Bananymous 82cb2ea20b AOC2023: implement day5 2023-12-05 09:13:13 +02:00
Bananymous 95fc894303 LibC: fix fgets when reading empty line 2023-12-05 07:46:14 +02:00
Bananymous 622007f2ee Shell: Verify that command exists before executing it 
This prevents page fault somewhere when executing non-existing
commands.
 2023-12-04 22:57:27 +02:00
Bananymous cf76d2e7d9 AOC2023: remove unnecessary loop 2023-12-04 17:54:10 +02:00
Bananymous 41f8974080 AOC2023: implement day4 2023-12-04 17:51:27 +02:00
Bananymous 3ed25425a3 AOC2023: implement day3 
Solution to second puzzle is not optimal, it definately should be
O(1) space, but I didn't want to think about it.
 2023-12-03 17:07:09 +02:00
Bananymous 49f8c4268f AOC2023: implement day2 2023-12-02 16:10:37 +02:00
Bananymous 70c224d8ea AOC2023: Cleanup day1 code 2023-12-01 13:31:55 +02:00
Bananymous 6a7335e5c9 AOC2023: implement day1 2023-12-01 12:38:01 +02:00
Bananymous 3aaa755c51 AOC2023: update buildsystem 2023-12-01 12:38:01 +02:00
Bananymous c140dd2a65 Kernel: Fix keyboard layout for underscore 2023-12-01 12:31:16 +02:00
Bananymous dabd79afa7 Userspace: Prepare aoc2023 environment :) 2023-12-01 01:22:53 +02:00
Bananymous 6ccb1bbbf9 init: set default termios on every username prompt 
Before if e.g. Shell crashed init would have broken termios
 2023-12-01 01:22:53 +02:00
Bananymous 9b841cb823 BuildSystem/Kernel: Enable -Wextra and -Werror in kernel 
Only needed to fix some unused variable bugs
 2023-12-01 01:22:53 +02:00
Bananymous c1cac43f28 BuildSystem: Don't build lai with -Wstack-usage 
Lai has two functions that trigger warnings on gcc. There isn't
really anything I can do about it, so just disable the warning
 2023-12-01 01:22:53 +02:00
Bananymous 8564b59e14 image: Remove inheritance from Netbpm 
This inheritance made no sense
 2023-11-29 20:56:05 +02:00
Bananymous fdb6dc94ba Kernel: cast between inheritance with static_cast 
using reinterpret_cast is not a good idea. preferably we would use
dynamic_cast, but that is not possible since kernel is compiled with
-fno-rtti.
 2023-11-29 20:50:57 +02:00
Bananymous 327b330338 Kernel: Make internal framebuffer bpp constexpr defined in libc 2023-11-29 20:07:33 +02:00
Bananymous 7090388c70 cp: allow copying all files except directories 
The old condition seemed odd. This allows taking screen shots by
copying the /dev/fb0.
 2023-11-29 16:13:40 +02:00
Bananymous ff550785a7 Userspace: Implement basic image rendering for Netbpm 
You can now render Netbpm (P6) format image to framebuffer using
`image` command. I added basic test image to
/usr/share/images/sample.ppm
 2023-11-29 16:11:35 +02:00
Bananymous d7a3aca5d4 Kernel: Use the correct bpp when writing to framebuffer 2023-11-29 00:31:24 +02:00
Bananymous 056586486d Shell: make clear use \e[2J instead of \e[J 
This makes kernel to actually clear the full screen. If framebuffer
did not fit font exactly last row would be left partially uncleared
 2023-11-28 23:55:37 +02:00
Bananymous 42a1d26d5b Userspace: Implement basic test for framebuffer mmap 2023-11-28 23:52:22 +02:00
Bananymous cc572af390 Kernel: Implement mmaping for framebuffer device 2023-11-28 23:51:56 +02:00
Bananymous 4275d2ce48 Kernel: Add framebuffer device to devfs 2023-11-28 23:51:28 +02:00
Bananymous 4a87d6052b Kernel: Add API for implementing mmappable devices 2023-11-28 23:50:49 +02:00
Bananymous d86ecf4f61 Kernel: Reading from negative offset in fb dev gives out info 2023-11-28 23:50:11 +02:00
Bananymous 09b7cb2f33 Kernel/LibC: Implement pread() 2023-11-28 23:47:30 +02:00
Bananymous 4c3da66c92 mmap-shared-test: Add test case for msync 2023-11-22 22:45:16 +02:00
Bananymous 60e755210c Kernel/LibC: Implement very basic msync 2023-11-22 22:44:06 +02:00
Bananymous ab9954fe73 Kernel: Delete the now obsolete VesaTerminalDriver 2023-11-22 21:59:11 +02:00
Bananymous fd18071975 Kernel: Implement TerminalDriver for Framebuffer device 
Use this new FramebufferTerminalDriver for terminal instead of the
old VesaTerminalDriver. Only drawback with this is that framebuffer
device can only be intialized after DevFS is initialized.
 2023-11-22 21:57:17 +02:00
Bananymous b88a7e0c6b Kernel: Add more APIs to FramebufferDevice 2023-11-22 21:56:27 +02:00
Bananymous cdf53f33f6 Kernel: Implement basic framebuffer device 
This allows exposing framebuffer to userspace
 2023-11-22 20:34:41 +02:00
Bananymous 25485069e6 Bootloader: Add cache to ext2 inode data block indices 
This reduces the number of read calls with current kernel size from
~1700 to ~700 (60% performance boots). Loading the kernel is now alot
faster.
 2023-11-22 13:54:53 +02:00
Bananymous f80bd040c8 Bootloader: add missing size directive 2023-11-21 19:11:48 +02:00
Bananymous bc5e8add19 Kernel: Make Ext2 filesystem use BlockDevice instead of Partition 2023-11-21 15:20:24 +02:00
Bananymous 7a8fd6d04a Kernel: TmpFS doesn't mark any functions as final 
I didn't think these would be overloaded, but they are
 2023-11-21 15:19:34 +02:00
Bananymous b749963b62 Kernel: Add common {read,write}_blocks() api to BlockDevice 2023-11-21 15:19:07 +02:00
Bananymous 6a068fb9f9 Kernel: Move Partition to its own file 2023-11-21 15:16:04 +02:00
Bananymous 19ed0cb9bf BAN: Add basic GUID data structure 2023-11-21 15:11:50 +02:00
Bananymous d08e876319 BuildSystem: Check value of BANAN_UEFI_BOOT with if ((...)); then 2023-11-21 11:53:50 +02:00
Bananymous f2a6f213dd BuildSystem: Add missing bootloader install script 2023-11-20 14:19:07 +02:00
Bananymous f7a5bfbccd Merge pull request 'BuildSystem: custom mount directory for bananos image to avoid conflicts' (#4) from Sinipelto/banan-os:main into main 
Reviewed-on: #4
 2023-11-20 14:16:58 +02:00
Bananymous f8f7e2208f BuildSystem: Remove old bootloader target 
And creating image now builds the bootloader
 2023-11-20 00:56:06 +02:00
Bananymous 8630f71f0c Toolchain: Build full toolchain with one call to toolchain/build.sh 2023-11-20 00:56:06 +02:00
Bananymous 9e44e8be75 Buildsystem: default bootloader is not my custom one 
You can set BANAN_BOOTLOADER=GRUB to use grub instead. Image creation
does not convert disk image now automatically between bootloaders and
calling ./bos image-full is now required.
 2023-11-18 17:18:03 +02:00
Bananymous cadb56d8ba Kernel: ProcFS inodes reflect processes ruid/rgid 
setgid/setuid did not change the permissions of procfs inodes. This
made Shell launched by init not appear in meminfo.
 2023-11-18 14:26:44 +02:00
Bananymous cd646a1ab7 Bootloader do some directory restructuring 2023-11-18 13:59:45 +02:00
Bananymous c9e9cfd361 Bootloader: Implement VESA video mode query and pass it to kernel 
Kernel now gets framebuffer from bootloader. Framebuffer dimensions
and bpp are hardcoded in bootloader, but will probably be read from
config file at some point.
 2023-11-17 22:45:35 +02:00
Bananymous ac96ea3370 Bootloader: Fix kernel memset to zero 2023-11-17 21:05:02 +02:00
Bananymous ef53aab24a Bootloader add temporary initial command line 
This will probably be read from some config file at some point
 2023-11-17 20:38:38 +02:00
Bananymous cb5a5d3ed1 Kernel/Bootloader: banan-os can now be booted with my bootloader :D 2023-11-17 20:33:02 +02:00
Bananymous d1444761a3 Bootloader: Clear screen, better memcpy 
Clear screen before jumping to kernel. Memcpy now uses ebx as offset
register, so only one register has to updated every loop
 2023-11-17 20:31:42 +02:00
Bananymous 95af728e39 Kernel: Don't calculate divisor in a for loop in ext2 inodes 2023-11-17 19:02:01 +02:00
Bananymous 24d87acec4 Kernel: Serial now uses random size for some serial ports 
If the serial port doesn't repond with a size, just use a random
one. There is no reason to ditch the whole output if you cannot
determine its size.
 2023-11-17 18:56:02 +02:00
Bananymous 84040e64b8 Kernel: Don't use multiboot2 explicitly. Parse it to common structure 
This allows support of multiple different bootloaders
 2023-11-17 18:54:59 +02:00
Bananymous 641a2dec00 Bootloader: Load kernel to memory and jump to it! 2023-11-17 16:36:29 +02:00
Bananymous 9e69053e64 Bootloader enter unreal mode at the start of stage2 2023-11-17 14:22:21 +02:00
Bananymous 1a415a380a Bootloader: Fix getting command line 2023-11-17 13:17:44 +02:00
Bananymous a19c5c672b Bootloader: implement reading from inode 2023-11-17 13:17:44 +02:00
Bananymous 3bcbc7c018 Bootloader: add support for indirect inode blocks 2023-11-16 13:34:21 +02:00
Bananymous b371abade5 Bootloader: Add helpers for printing n bit hexadecimal numbers 2023-11-16 13:30:01 +02:00
Bananymous 9d4101e0c5 Bootloader: Implement basic ext2 filesystem 
This can search for files in an ext2 filesystem. Only 12 blocks
are currently supported.

Now only ELF loading is missing for loading the actual kernel!
 2023-11-15 16:58:26 +02:00
Bananymous c791a1c200 Bootloader: Build with cmake instead of custom script 2023-11-14 03:44:47 +02:00
Bananymous bd3f2bb61c Bootloader: Split bootloader into multiple files 
This cleans up the code since bootloader is starting to near 1k lines
 2023-11-14 03:27:52 +02:00
Bananymous 7ca9a961b3 Bootloader move bootloader code from arch directory 
The os itself only supports x86 so this won't matter. x86_64 and i386
use the same bootloader assembly.
 2023-11-13 21:42:58 +02:00
Bananymous cbb9422ee0 Bootloader: installer now uses banan os elf headers intead of Linux's 2023-11-13 21:40:15 +02:00
Bananymous 2c2ee6636f fixup 2023-11-13 21:39:48 +02:00
Bananymous 3beebd721f LibELF: Remove 2 32 bit types that don't exist 2023-11-13 21:39:39 +02:00
Bananymous 048bbf874a Bootloader: Find root partition from GPT header 2023-11-13 18:55:48 +02:00
Bananymous d2970b5b8d Bootloader: installer now patches GPT GUID's 2023-11-13 18:53:55 +02:00
Bananymous 0004d3b435 Bootloader: Add API to create GUID from string 2023-11-13 18:52:41 +02:00
Bananymous d5aa08baa5 BuildSystem: add bootloader target 
Use this target to run banan-os with custom bootloader
 2023-11-12 01:50:30 +02:00
Bananymous 5362962d9a BuildSystem: add proper clean target 2023-11-12 01:14:42 +02:00
Bananymous bfe6d60e9e ls: print link targets when listing files 2023-11-11 23:17:18 +02:00
Bananymous c084ce8b01 Kernel/LibC: Implement readlink and readlinkat 2023-11-11 23:16:52 +02:00
Bananymous 381cfdad77 Bootloader: Continue work on bootloader 
Bootloader can now get the memory map and read cmdline from user.

Now 'just' video mode query, ext2 and ELF parsing are needed :D
 2023-11-11 22:49:00 +02:00
Bananymous cfc7313451 Bootloader: Start work on bootloader 
I wrote a fast first stage bootloader and a installer to put it into
a disk image.
 2023-11-09 22:42:47 +02:00
Bananymous bc8fd1285f Toolchain: Fix typo when setting make flags 
I defaultet MAKEFLAGS to -j which will launch processes in parallel
without any limit.
 2023-11-09 21:57:45 +02:00
Bananymous 8e5224ef53 Toolchain: add em=gnu to gas. This allows using / in expressions 2023-11-09 21:43:13 +02:00
Bananymous fda0dfec30 Kernel: Make TmpFS enforce max page count. 2023-11-07 16:13:21 +02:00
Bananymous d6ae1bcf36 Kernel: Remove now obsolete RamFS 
Everything is using now the better TmpFS which uses physical pages
for page allocation instead of the static kmalloc memory.
 2023-11-07 16:07:11 +02:00
Bananymous 5044810451 Kernel: Make DevFS use the new and better TmpFS instead of RamFS 2023-11-07 16:05:05 +02:00
Bananymous 147cd93ed3 Kernel: Add method to TmpFS for looping over all (cached) inodes 2023-11-07 16:04:34 +02:00
Bananymous 07b5920f3f Kernel: Lock TmpFS in all its methods 2023-11-07 16:03:52 +02:00
Bananymous 2bcf934389 Kernel: Implement symlinks to TmpFS 2023-11-07 15:59:50 +02:00
Bananymous 1405712f26 Kernel: Make PS/2 keyboard wait until interrupts are enabled 2023-11-07 15:58:50 +02:00
Bananymous a8ffe6b3a6 BuildSystem: Fix temporary sysroot creation in toolchain compilation 2023-11-07 14:16:49 +02:00
Bananymous 613d6640fe meminfo: better format for files without permissions 2023-11-07 02:41:01 +02:00
Bananymous 885ed218fa Kernel: Make unlinking from /proc always fail with EPERM 2023-11-07 02:40:27 +02:00
Bananymous b1f431d962 Kernel: /tmp is now TmpFS instead of RamFS 2023-11-07 02:36:22 +02:00
Bananymous 06e176e6b9 Kernel: Make ProcFS use the new TmpFS internally 2023-11-07 02:35:44 +02:00
Bananymous b7771e95ac Kernel: Implement TmpFS Inode unlinking and deletion 2023-11-06 21:49:12 +02:00
Bananymous 3e33fc156b Kernel: TmpFS directory inodes now iterate over only valid entries 2023-11-06 21:41:51 +02:00
Bananymous 438f01a856 Kernel: Fix TmpFS directory entry enumeration early return 2023-11-06 21:06:10 +02:00
Bananymous 5dd8189048 Kernel: Fix ext2 directory listing for big directories 2023-11-06 21:05:58 +02:00
Bananymous ff6b127c3a Kernel: Implement TmpFS directory listing 2023-11-06 21:05:58 +02:00
Bananymous c3ed700324 Kernel: Implement TmpFS inode chmod 2023-11-06 20:11:34 +02:00
Bananymous ba2f09a4e6 Kernel: Cleanup TmpFS code and block access doesn't require allocs 
TmpFS blocks are now accessed with a simple wrapper
 2023-11-06 20:07:09 +02:00