Sinipelto/banan-os
1
0
Fork 0
forked from Bananymous/banan-os
Code Pull Requests Activity
2,258 Commits 1 Branch 0 Tags
8fd0162393a6b8b917756aa5a905c5925be4116c
Commit Graph
100 Commits
This Branch
This Branch
All Branches
Author SHA1 Message Date
Bananymous 8fd0162393 Kernel: Rewrite x86_64 page tables to use HHDM instead of kmalloc 
This allows page tables to not crash the kernel once kmalloc runs out of
its (limited) static memory.
 2024-10-14 11:40:30 +03:00
Bananymous f0b18da881 Kernel: Add kmalloc helper APIs 2024-10-14 11:39:04 +03:00
Bananymous 5f63ea8f8a Kernel: Add CPUID check for 1 GiB page support 2024-10-14 11:38:03 +03:00
Bananymous 2b43569927 Kernel: Use enums in boot info instead of magic values 2024-10-14 11:36:51 +03:00
Bananymous 4ba33175cf Kernel: Don't leak memory when preparing fast page 
For some reason I was allocating memory for page table entry...
 2024-10-14 11:34:48 +03:00
Bananymous 3edc1af560 Kernel: Don't map main bios area in page table initialization 
This is only needed for RSDP lookup so it can be done with fast pages
 2024-10-14 11:32:54 +03:00
Bananymous 55fbd09e45 Kernel: Rewrite physical memory allocation with PageTable::fast_pages 2024-10-14 11:32:54 +03:00
Bananymous 6a46a25f48 image: Add benchmark flag to measure performance of image operations 2024-10-13 22:05:13 +03:00
Bananymous 88b8ca5b29 LibC: Fix some string functions 
I was not casting some required values to char or handling length of
zero
 2024-10-13 22:04:08 +03:00
Bananymous fdddb556ae LibC: Implement system() more properly 
Old implementation did not ignore and block needed signals
 2024-10-13 22:03:15 +03:00
Bananymous d36b64e0c8 LibImage: name color to u32 function to to_argb from to_rgba 
This is the actual format that it returns
 2024-10-13 22:01:46 +03:00
Bananymous 8adc97980a Shell: rewrite the whole shell to use tokens instead of raw strings 
tab completion is still running with raw strings and that has to be
fixed in the future.
 2024-10-13 22:00:16 +03:00
Bananymous dab6e5a60f BAN: Cleanup HashMap implementation and add {insert,emplace}_or_assign 2024-10-13 22:00:16 +03:00
Bananymous 0b05e9827b BAN: Use memmove instead of memcpy on overlapping data 
I was accidentally using memcpy where memmove was needed
 2024-10-13 22:00:16 +03:00
Bananymous 1c1a76d6d7 BAN: Member function pointers now use references instead of pointers 
This seems cleaner as class pointer cannot be null anymore
 2024-10-13 22:00:16 +03:00
Bananymous df4f37d68d BAN: only define placement new operators for banan-os targets 
This allows building and using BAN library outside of banan-os!
 2024-10-10 21:55:25 +03:00
Bananymous 44629ba5dd BAN: Allow userspace to use string literals with BAN::Error 2024-10-10 21:54:52 +03:00
Bananymous 2da6776451 BAN: Update {Byte}Span API with better constness 
const BAN::Span<int> is now allowed to modify its underlying data, but
the container itself is const.

BAN::Span<const int> can be used for spans over constant data.
 2024-10-10 21:53:23 +03:00
Bananymous a68f411024 BAN: Add requires clauses for Container::emplace{,_back} functions 
This allows syntax highlighters to report errors!
 2024-10-10 21:51:44 +03:00
Bananymous 166550fbba Kernel: Ext2 check if file exists before creating it 2024-10-07 18:21:05 +03:00
Bananymous 3e68981b0b userspace: Remove start-gui from shell builtins and make it an alias 
This makes way more sense :D
 2024-10-07 18:01:33 +03:00
Bananymous 6fd76e8d1e Shell: Rewrite alias parsing to allow chained commands 
You can now have "chained" commands in alias
e.g. `alias foo='echo hello && ls`
 2024-10-07 18:01:33 +03:00
Bananymous dfcd15e7c4 Shell: Implement background processes with & 2024-10-07 18:01:33 +03:00
Bananymous 5fa359c28d ls: Print file name in quotes if it contains spaces 2024-10-07 18:01:32 +03:00
Bananymous 5bcfc9dd50 Shell: Always print prompt to new line 
This is only done on non banan-os targets if terminal is detected to
support cursor position querying
 2024-10-07 18:01:32 +03:00
Bananymous f67cad326a Shell: Don't crash when there are no tab completions available :D 2024-10-07 14:26:07 +03:00
Bananymous 9775e83374 Shell: Fix tab space escaping in tab completion 2024-10-07 04:19:36 +03:00
Bananymous 264d1798dc Shell: Clenup code and fix some bugs 
Don't list tab completion multiple times, allow `clear` to work even
when ANSI CSI 3K is not supported, reset buffer index when cancelling
command with ctrl+c
 2024-10-07 04:10:25 +03:00
Bananymous 1824988b9a Shell: Add support for simple aliases 
Aliases do not support chained commands with pipes, &&, ... but this is
a good start.
 2024-10-07 04:09:38 +03:00
Bananymous c54d9b3f60 Shell: Implement simple tab completion for commands and files 2024-10-07 01:44:44 +03:00
Bananymous f432d3fcf8 BAN: Cleanup Optional casting for value getters 2024-10-07 01:44:44 +03:00
Bananymous 4f7828bab9 Shell: Allow escaping spaces in commands 2024-10-07 01:44:44 +03:00
Bananymous ae073a336d Shell: Move builtin commands to a hash map 
This allows accessing builtin commands outside of `execute_builtin`
 2024-10-07 01:44:44 +03:00
Bananymous 6f90974896 BAN: Fix StringView::starts_with 
I have no idea what i had been thinking when writing this code :D
 2024-10-06 06:23:25 +03:00
Bananymous 4f3c05851c Shell: Expand ~ to home if its at the start of non quoted argument 2024-10-06 01:38:43 +03:00
Bananymous 4b13055125 Shell: Make builtin exit command read exit value from argument 
Shell used to unconditionally return with exit code of 0
 2024-10-06 01:24:34 +03:00
Bananymous d542cd811d Shell: Add support for &&, || and ; 2024-10-06 01:24:24 +03:00
Bananymous f75cebac7e Shell: Mark all functions as static 2024-10-05 19:11:58 +03:00
Bananymous e302b6b635 Shell: Use sigaction instead of signal 
This allows ctrl-c to work on linux :D
 2024-10-05 19:07:59 +03:00
Bananymous f709e88994 Shell: Cleanup argument handling and exiting 2024-10-04 17:54:01 +03:00
Bananymous ab9a6d583b Userspace: Set SHELL environment variable in init instead of shell 2024-10-04 17:24:37 +03:00
Bananymous 26d6bf338e Shell: Ignore SIGTTOU and set pgroup from parent instead of child 
This allows using the shell in linux!
 2024-10-04 17:23:31 +03:00
Bananymous b6e040dfc2 Kernel/Shell: Fix backspace and delete key byte sequences 2024-10-04 04:14:47 +03:00
Bananymous f5802ca3e5 General: Update screenshot in README 2024-09-30 18:28:16 +03:00
Bananymous 7223e581a2 WindowServer: Fix 32 bit compilation with -Werror 
There was a always false statement on 32 bit that the compliler was
warning about.
 2024-09-27 15:33:25 +03:00
Bananymous 2d11ce9669 Kernel: Fix interrupt system 
I had not understood how MSIs work and I was unnecessarily routing them
through IOAPIC. This is not necessary and should not be done :D

Also MSIs were reserving interrupts that IOAPIC was capable of
generating. Now IOAPIC and MSIs use different set of interrupts so
IOAPIC can use more interrupts if needed.
 2024-09-27 15:31:31 +03:00
Bananymous e4982a1a5c LibC: Fix printf with alternate format and zero values 2024-09-26 15:25:16 +03:00
Bananymous cea6dedccc Userspace: Compile programs and libraries with -Wall -Wextra -Werror 2024-09-26 15:20:07 +03:00
Bananymous e6ed5a388d BuildSystem: Export compile commands for clangd 2024-09-26 15:14:54 +03:00
Bananymous b89fc3fe87 Kernel: Implement ANSI SGR 7 to invert colors 
This allows vim's visual selection to show up
 2024-09-26 15:08:11 +03:00
Bananymous 57ae74f908 Terminal: Implement more ANSI escape handling 
This patch adds L and M codes for inserting and deleting lines and SGR 7
for inverting colors
 2024-09-26 15:07:08 +03:00
Bananymous 1a6804b4b4 Terminal: Make Terminal::handle_csi() return invalidated rectangle 
When I updated Terminal to only do a single invalidation after all of
input text was printed, I forgot to change handle_csi
 2024-09-26 15:05:11 +03:00
Bananymous 82e6a3582d LibGUI: cleanup Window::shift_vertical and add copy_horizontal_slice 2024-09-26 15:00:14 +03:00
Bananymous 11a4e4faa2 LibImage: Add Adam7 support for PNG decoder 2024-09-26 11:47:34 +03:00
Bananymous 50a3533322 LibInput: Add value for ESC in key_to_utf8_ansi 
This allows exiting vim when using this function for key mappings :D
 2024-09-24 18:08:34 +03:00
Bananymous 4e9f39384a LibC: Initialize libc only once 
This was breaking stuff with dynamic loader initializing libc and main
executable reinitializing it later :D
 2024-09-24 17:56:12 +03:00
Bananymous 39802b56c1 Kernel: Allow SYS_EXEC to fail at any point 
This patch builds new executable image to another pml4 structure and
only after everything is validated will current context be replaced.
This allows exec to fail "late" where previously it would panic the
kernel or kill the process. This allows graceful handling of exec
failures in userspace!
 2024-09-24 16:29:38 +03:00
Bananymous ebb87ccdde Kernel: Add asserts for overflow checks with ms -> ns conversions 2024-09-24 16:28:44 +03:00
Bananymous f0e55938c1 Kernel: Allow initial binding of threads to specific processor 2024-09-24 16:27:40 +03:00
Bananymous 348d04f7f5 Kernel: Implement static Process::kill() 
This allows killing processes even when there does not exist a current
thread.
 2024-09-24 13:16:43 +03:00
Bananymous 1b0086217c Terminal: Do scrolling in putchar if necessary 
I overlooked that handling *newline* scrolls would be enough. You can
definitely scroll more if printing a lot of text which wraps to the next
line.
 2024-09-23 15:00:47 +03:00
Bananymous d395cf38b7 Kernel: Binding to port 0 will always find unused port 2024-09-22 17:30:01 +03:00
Bananymous 57aec2a733 Kernel: Validate pointer's when printing stack trace 
There was an kernel panic if stack trace contained uncanonical
addresses.
 2024-09-22 17:16:01 +03:00
Bananymous ae89237453 Kernel: Disable warning when calling syscall 
This warning is only generated when compiling with UBSAN and I don't see
how the value would even be uninitialzed.
 2024-09-22 17:15:07 +03:00
Bananymous 60d5257678 Kenrel: Add __builtin_unreachable support for UBSAN 2024-09-22 17:14:36 +03:00
Bananymous d59463d11b Kernel: Fix TTY reading one keyevent after disabling input handling 2024-09-22 17:13:10 +03:00
Bananymous 1280528e4e BuildSystem: Use -O2 for all libraries 
I don't know why I had not specified optimization level for libraries.
Only LibImage was using explicit -O3. LibImage doesn't need O3 anymore
as O2 seems to be around the same speed.
 2024-09-20 20:04:49 +03:00
Bananymous 23d6205659 Kernel: Move DEBUG_* macros to centralized Debug.h 
This makes toggling debug info much easier
 2024-09-20 11:00:07 +03:00
Bananymous bc0acc6f44 Kernel: Validate network packet sizes before casting 
This caused a lot of crashes on invalid packets :D
 2024-09-20 10:46:59 +03:00
Bananymous b8622f2b4b Kernel: Implement simple RTL8169 driver 
This allows me to use internet when running banan-os on my hardware!
 2024-09-19 22:58:03 +03:00
Bananymous 7f0c39fe91 Kernel: Don't crash the kernel if packet is smaller than ethernet hdr 2024-09-19 22:51:55 +03:00
Bananymous a489be0e05 Kernel: Allow parallel LAPIC timer initialization with HPET 
HPET supports reading LAPIC counter without locks, so it can be done in
parallel. This makes booting much faster. Previously initializing every
timer took 100 ms, so 16 CPUs took total of 1.6 seconds. This allows
doing it all in 100 ms.
 2024-09-19 14:41:59 +03:00
Bananymous 8e08046519 Kernel: Add asserts about having locked TTY's write lock 
This for some reason fixes booting on real hardware? :D
 2024-09-18 00:56:48 +03:00
Bananymous 999eb53364 Kernel: Release debug lock if its locked during kernel panic 
Also kernel panic now prints if it had lock
 2024-09-18 00:56:02 +03:00
Bananymous f7e549e412 Toolchain: Run strip after installing toolchain 
This drops installed toolchain size to around fifth :D
 2024-09-17 22:30:40 +03:00
Bananymous fbb99de728 ls: Show symlink target with -l 2024-09-17 19:12:34 +03:00
Bananymous 0620ed3d4f Kernel: Fix file open permissions for some syscalls 2024-09-17 19:11:48 +03:00
Bananymous b779b3cf2d Kernel: Move file finding code to a helper 2024-09-17 18:52:52 +03:00
Bananymous a6b973003b WindowServer: chmod the correct file 2024-09-17 18:35:27 +03:00
Bananymous e431e90b20 Kernel/LibC: Implement all chown family function with fchownat 2024-09-17 18:35:01 +03:00
Bananymous 4aa466b948 Kernel/LibC: Implement all chmod family functions using fchmodat 2024-09-17 17:19:26 +03:00
Bananymous 04ae53b6df Shell: Add back accidentally deleted cd and time builtins 2024-09-17 16:38:45 +03:00
Bananymous 3666525d24 Kernel/LibC: Implement readlink in terms of readlinkat 2024-09-17 16:38:15 +03:00
Bananymous f1a4bbce53 Kernel/LibC: Implement all stat family functions with fstatat 
This patch gets rid of 2 unnecessary syscalls!
 2024-09-17 16:38:01 +03:00
Bananymous 708a720d9d Kernel: Remove SYS_OPEN 
This can be done with SYS_OPENAT with fd set to AT_FDCWD
 2024-09-17 16:16:47 +03:00
Bananymous 7177da7d62 LibC: Implement dummy get_rusage 
One port seems to use this function. This dummy just reports no used CPU
time for current process nor children
 2024-09-17 15:59:22 +03:00
Bananymous 5e4aa75e03 Kernel: Perform access checks when creating a file or a directory 
Also SYS_CREATE_DIR now uses correct relative path. It used to always
create files relative to root. And as no permission checks were tested,
file creation succeeded to root as long as path did not contain '/' :D
 2024-09-17 15:57:07 +03:00
Bananymous d88ee5c9ee Kernel/LibC: Implement creat with open 
This allows getting rid of unnecessary SYS_CREATE. Directory creation
still has its own syscall, but I could combine it with SYS_OPEN also.
 2024-09-17 15:55:53 +03:00
Bananymous d4ea720239 Kernel: Don't crash the kernel if ext2 encounters disk error 
This will most likely result in a corrupted filesystem, but crashing the
kernel is too much :D
 2024-09-17 15:54:33 +03:00
Bananymous 97ee370ffe Kernel: Allow listing files even if one of directories blocks are empty 2024-09-17 15:53:14 +03:00
Bananymous a084f83f4c Kernel: Rework kernel-side ELF loading 
ELFs are now loaded as MemoryRegions so they don't need special handling
anywhere. This also allows file backed COW optimizations to work. This
was not the case before.

This patch removes now obsolete LoadableELF and unused ELF files from
LibElf.
 2024-09-15 23:57:34 +03:00
Bananymous 54732edff4 Kernel: Fix bugs in memory regions 
MemoryRegion::initialize() required size to be page aligned, this is not
necessary.

MemoryBackedRegion::copy_data_to_region() required user-write
permissions for underlying data. This did not matter as memory backed
regions dont support COW memory, but it could lead to bugs later on.
 2024-09-15 23:18:05 +03:00
Bananymous 1a24d1839f LibInput: KeyEvent to ansi string now handles delete key 
This allows Terminal emulator to also handle delete key.

The value of `\0x7F` may be wrong as qemu's serial console seems to be
sending `\e[3~`
 2024-09-15 03:13:21 +03:00
Bananymous c3040a04a3 Terminal: Optimize printing a lot 
Terminal used to run `yes` at around 400 lines per second

This patch pumps that to over 100'000 lines per second!

There are 2 optimizations done:
  1. only invalidate window once after rendering is done
  2. if printing more than `rows()` newlines skip prior data
 2024-09-15 03:12:26 +03:00
Bananymous 7feb4c4ebd Kernel: VFS::file_from_absolute_path now used root_file() API 2024-09-15 02:38:25 +03:00
Bananymous 2911d1f018 Kernel: Cleanup and fix pseudo terminals 2024-09-15 02:38:07 +03:00
Bananymous d68ad893f0 Kernel/Shell: Add support for delete key 2024-09-14 22:45:48 +03:00
Bananymous 4ca147699d Shell: use printf and putchar instead of fprintf and fputc 2024-09-14 22:37:09 +03:00
Bananymous abed41b8fa Shell: Remove builtin tests 
Test should be programs in /bin instead
 2024-09-14 22:28:33 +03:00
Bananymous 2604a55f80 Shell: Make ctrl+c start a new command 2024-09-14 22:27:32 +03:00