Sinipelto
/
banan-os
forked from Bananymous/banan-os
1
0
Fork 0
Code Pull Requests Activity
1,367 Commits 1 Branch 0 Tags 3.9 MiB
Commit Graph

1367 Commits

Author SHA1 Message Date
Bananymous 637397dd2f LibC: Make memcpy and memset not optimized 
GCC does some weird optimizations and breaks these functions
 2023-12-19 21:42:59 +02:00
Bananymous 5edbb1d5c4 LibC: make execvp fail if no executable found 2023-12-19 21:42:59 +02:00
Bananymous f46240e879 AOC2023: Implement day14 2023-12-19 02:49:48 +02:00
Bananymous 68627995f8 AOC2023: Implement day13 2023-12-19 01:25:23 +02:00
Bananymous 951eac6bfa Kernel: Implement hacky non-block read for ps2 keyboard 2023-12-19 00:20:46 +02:00
Bananymous 0833d7b43f Kernel: Allow opening files with O_NONBLOCK 2023-12-19 00:20:15 +02:00
Bananymous 1cd5b3c20c LibC: Fix stpncpy 
I had misunderstood and tought that the string is always
null terminated
 2023-12-15 00:33:37 +02:00
Bananymous c773e2ed07 LibC: Optimize malloc even further 
aoc2023/day12 now runs in 3.5 seconds on my machine. This is way
better than the old almost hour.
 2023-12-14 23:49:25 +02:00
Bananymous c4186bd5f0 LibC: Compile with -O2 optimizations 
I have no idea why libc had no optimizations enabled.

Weird thing is that memcpy optimized to infinite loop if I kept the
__restrict__ attributes in pointers. I don't think there was any ub.
 2023-12-14 23:40:08 +02:00
Bananymous 5f640da166 LibC: Optimize malloc by a lot 
I now cache first free node in malloc_pool and whether the node is
last or not. There allow doing less full iterations over the whole
malloc pool.

Malloc is still unbearably slow and I will have to write a proper
fast malloc at some point. With this patch running aoc2023/day12 is
atleast possible. Probabaly will take closer to an hour...
 2023-12-14 15:31:00 +02:00
Bananymous 7320104fd0 LibC: Mark __assert_fail as noreturn 2023-12-14 15:13:54 +02:00
Bananymous d273c5e77c rm: Use remove instead of unlink for removing files 2023-12-14 11:03:58 +02:00
Bananymous 8344f2f9ab AOC2023: Fix day3 implementation 
I accidently broke my day3 when messing with signed/unsigned integers
 2023-12-14 11:03:19 +02:00
Bananymous 600bd7ee0f LibC: Implement rmdir in unistd.h 2023-12-14 11:02:56 +02:00
Bananymous adf1e54605 LibC: Implement more functions to string.h 2023-12-14 11:02:30 +02:00
Bananymous a3de64f5fa LibC: Implement basic version of system() this assumes Shell exists 2023-12-14 11:00:40 +02:00
Bananymous 8216d09e06 LibC: Implement non-locale specific functions from strings.h 2023-12-14 10:59:39 +02:00
Bananymous 694cda6e40 LibC: Implement remove for stdio 2023-12-14 10:58:50 +02:00
Bananymous e227a87140 Kernel: Allow creating directories if path ends with '/' 
Also create and create_dir will now fail with EEXISTS if file exists
 2023-12-14 10:56:53 +02:00
Bananymous 6cd5763361 Kernel: Allow cloning of mmapped framebuffer regions 2023-12-14 10:54:06 +02:00
Bananymous 0f1c740fe8 Kernel: Implement two missing ubsan handlers needed by lai 2023-12-14 10:53:36 +02:00
Bananymous 3f3e81fcf2 Bootloader: Align boot information passed to kernel 
UBSAN found this bug
 2023-12-14 10:52:51 +02:00
Bananymous 862993398d AOC2023: Implement day12 
There seems to be a problem with my malloc so the hash map is not
working. This code worked fine on my linux with actually working
malloc :D
 2023-12-14 10:51:48 +02:00
Bananymous 225c7c6ab4 AOC2023: Implement day11 2023-12-11 14:36:33 +02:00
Bananymous 58633ca373 AOC2023: Remove unnecessary loop 2023-12-10 20:18:59 +02:00
Bananymous 00d57d783e LibC+userspace: Make everything compile with -Wall -Wextra -Werror 
I added -Wall -Wextra -Werror as public compile flags to libc. Now
everything in userspace in compiled using these flags. I made all
necessary changes to allow compilation to work.

Only exception is execvp which has a large stack usage. Maybe it
should use malloc for the buffer but posix allows ENOMEM only when
kernel is out of memory... This can be fixed when fexecve is
implemented and there is no need for absolute path.
 2023-12-10 19:20:14 +02:00
Bananymous f077e17b2a AOC2023: Implement day10 2023-12-10 18:28:04 +02:00
Bananymous 2f8759d2d3 Kernel: Make ext2 fs work with block sizes != 1024 2023-12-10 01:32:30 +02:00
Bananymous a6bfbbf655 ls: Rewrite whole program for cleaner output 
ls -l now sorts elements and aligns them by columns.
 2023-12-10 01:05:12 +02:00
Bananymous 9d8c9baa3f LibC: Remove unnecessary RWX mask definition 2023-12-09 19:43:49 +02:00
Bananymous c273bf98c9 ls+stat: show setuid, setgid and sticky bits 2023-12-09 19:43:25 +02:00
Bananymous 99a5b6e2ef AOC2023: Cleanup day9 code 
Move tree building to its own function. Both parts can use the same
tree. This also decreaseas memory usage by one element by row :D
 2023-12-09 19:08:13 +02:00
Bananymous 284a012509 Kernel: Add framebuffer information to kernel image 2023-12-09 17:33:58 +02:00
Bananymous abc69fa3d5 Bootloader: Search framebuffer information from kernel memory 
Framebuffer information is no longer hard coded into bootloader.
Kernel can define framebuffer info structure in its memory which is
used for finding proper video mode.
 2023-12-09 17:32:10 +02:00
Bananymous 8b01e2d4a2 Bootloader: Generalize framebuffer video mode search 
Framebuffer size is now taken as arguments to vesa_find_video_mode
 2023-12-09 16:48:04 +02:00
Bananymous 0c3e5980d6 AOC2023: Implement day9 2023-12-09 16:22:43 +02:00
Bananymous 951873098e BAN: Rewrite heap sort 
Heap sort is now more close to gnulibc++ version. This is just more
simplified version.
 2023-12-08 22:45:55 +02:00
Bananymous 2b927b9729 BAN: Restructure sort functions and namespaces 2023-12-08 18:58:47 +02:00
Bananymous b523ccb893 AOC2023: Implement day8 
Second part was kinda weird. You are supposted to assume something
of the input, which necessarily is not true.
 2023-12-08 17:13:20 +02:00
Bananymous 7bb3172591 AOC2023: Use the default sort algorithm 2023-12-08 00:10:59 +02:00
Bananymous be657b9b18 BAN: Add default sort. This is wrapper around sort_intro 2023-12-08 00:10:09 +02:00
Bananymous 94e6b9fa65 BAN: Implement intro sort 2023-12-07 23:56:11 +02:00
Bananymous d8ea0eeba3 BAN: Add less than operator for iterator 2023-12-07 23:55:41 +02:00
Bananymous 6873244169 BAN: Move placement new to New.h 
I have no idea why they were defined in Move.h
 2023-12-07 23:52:57 +02:00
Bananymous 805b4096e9 BAN: Remove empty else. Builds with -Wall -Wextra 2023-12-07 23:50:35 +02:00
Bananymous 0f74e123b8 BAN: Implement ilog2 for unsigned integers 2023-12-07 23:50:04 +02:00
Bananymous 7f212106db BAN: Implement heap sort 2023-12-07 23:18:49 +02:00
Bananymous 46c3da71b6 BAN: Cleanup sorting code 2023-12-07 23:18:49 +02:00
Bananymous e5cab047d6 BAN: Implement more methods for iterators 2023-12-07 23:18:49 +02:00
Bananymous bf3e9eabd5 BAN: Implement distance() for iterators 2023-12-07 23:18:49 +02:00