Bananymous
2c471a89d0
LibC: Add compile option to libc to stop optimizing string.h
2024-01-17 19:44:29 +01:00
Bananymous
51214ea1bf
Kernel: Add load_keymap syscall and load Finnish keymap in init
2024-01-10 14:46:29 +02:00
Bananymous
db0650cf10
LibC: Implement basic atexit. This allows clean exit from doom (soon)
2024-01-03 00:30:37 +02:00
Bananymous
668c4c8976
LibC: Implement getgrnam and getgrgid
2024-01-03 00:14:49 +02:00
Bananymous
96d831c31a
Kernel/LibC/Userspace: Implement chown and set tty owner on login
2024-01-02 22:19:38 +02:00
Bananymous
4307968182
All: Start work again on sse support
2023-12-28 19:14:42 +02:00
Bananymous
3352640d09
LibC: strlen had to be marked not optimized...
2023-12-19 21:42:59 +02:00
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
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
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
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
9d8c9baa3f
LibC: Remove unnecessary RWX mask definition
2023-12-09 19:43:49 +02:00
Bananymous
0dc168a8c0
LibC: Implement basic execvp
2023-12-06 18:14:00 +02:00
Bananymous
76049b2e13
LibC: Implement and fix some string.h functions
2023-12-06 18:13:34 +02:00
Bananymous
976ae64f88
LibC: make sleep() set errno if sleep woke up early
2023-12-06 13:13:43 +02:00
Bananymous
1c78671078
Kernel: Rework all signal code
...
Signal handling code was way too complex. Now everything is
simplified and there is no need for ThreadBlockers.
Only complication that this patch includes is that blocking syscalls
have to manually be made interruptable by signal. There might be some
clever solution to combat this is make this happen automatically.
2023-12-06 13:02:17 +02:00
Bananymous
cdcc36efde
Kernel: Remove unnecessary raise syscall
2023-12-06 13:00:45 +02:00
Bananymous
894065a67e
LibC: cleanup and fix fgets
...
My quick fix for fgets wrote non-nullterminated newline if size was
one.
POSIX doesn't specify what happens if size == 0, so I do the same as
glibc and return NULL without setting errno.
2023-12-05 10:00:43 +02:00
Bananymous
95fc894303
LibC: fix fgets when reading empty line
2023-12-05 07:46:14 +02:00
Bananymous
327b330338
Kernel: Make internal framebuffer bpp constexpr defined in libc
2023-11-29 20:07:33 +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
60e755210c
Kernel/LibC: Implement very basic msync
2023-11-22 22:44:06 +02:00
Bananymous
c084ce8b01
Kernel/LibC: Implement readlink and readlinkat
2023-11-11 23:16:52 +02:00
Bananymous
f6c312a6b3
BuildSystem: using sysroot doesn't need root privileges anymore!
...
Sysroot is now created with fakeroot. This allows root access to be
only needed for disk image creation, since it uses loopback devices.
2023-11-04 17:50:43 +02:00
Bananymous
7c6832cee4
LibC: implement and call __cxa_finalize() on exit()
...
This allows global destructors to be actually called
2023-10-30 11:10:08 +02:00
Bananymous
0b5fcb3f88
Kernel/LibC: Add crt* files to LibC and remove crt0 from kernel
...
There was no reason for libc get crt0 from kernel.
2023-10-30 11:06:13 +02:00
Bananymous
87ff38664a
Kernel/LibC: Add syscall and wrapper for unlink
2023-10-25 21:45:04 +03:00
Bananymous
6ee4d10651
Kernel/LibC/Userspace: Implement mkdir and creat
...
Touch now uses creat insteadd of open with O_CREAT flag
2023-10-25 21:07:26 +03:00
Bananymous
627b8cc140
Kernel/LibC: implement chmod syscall + libc wrapper
2023-10-25 02:35:37 +03:00
5ee3506474
Kernel: Add physical memory info to /proc/{pid}/meminfo
2023-09-30 22:11:45 +03:00
785de5f9b9
Kernel: /proc/{pid}/meminfo now reports per process memory usage
2023-09-30 21:20:18 +03:00
d7a00e8cc2
LibC: Implement stpcpy since gcc seems to need it
...
gcc seems to optimize some calls to strcpy to stpcpy
2023-09-30 20:58:19 +03:00
9f0797047f
Kernel/LibC: dirent now contains file type
2023-09-30 20:46:57 +03:00
23f429e23b
LibC: Fix mmap()
...
mmap() did not pass fildes to the syscall structure.
2023-09-29 17:24:21 +03:00
48096b18c2
LibC: mmap returns MAP_FAILED instead of NULL
2023-09-29 10:38:08 +03:00
15cd59b8ce
LibC: Fix a bug in malloc
...
You could not allocate with size equal to one of the pool sizes.
2023-09-28 21:05:27 +03:00
6eda65eea6
Kernel/LibC/Userspace: Add SYS_POWEROFF + cli tool
...
You can now shutdown/reboot banan-os with the poweroff cli tool.
Reboot doesn't seem to work on qemu.
2023-09-28 12:36:47 +03:00
1abf787596
LibC: Add errno for unknown error
2023-09-28 12:06:17 +03:00
61694268e2
LibC: Implement length modifiers to printf
2023-09-28 11:42:57 +03:00
cb76f1ea75
Kernel: Add some functionality to disable TTY input/output
...
Userspace programs can call tty_ctrl() to disable/enable tty from
handling input and displaying output.
This API is probably going to change in the future to ioctl calls
but I'm not sure how ioctl is used and what functionality should it
have. I decided to create whole new function and syscall for now.
Next I will expose framebuffer in /dev/fb0 and then I can start work
on graphical environment! :D
2023-09-27 15:44:05 +03:00
Bananymous
Bananymous