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185 Commits

Author SHA1 Message Date
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
Bananymous 5ee3506474 Kernel: Add physical memory info to /proc/{pid}/meminfo 2023-09-30 22:11:45 +03:00
Bananymous 785de5f9b9 Kernel: /proc/{pid}/meminfo now reports per process memory usage 2023-09-30 21:20:18 +03:00
Bananymous 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
Bananymous 9f0797047f Kernel/LibC: dirent now contains file type 2023-09-30 20:46:57 +03:00
Bananymous 23f429e23b LibC: Fix mmap() 
mmap() did not pass fildes to the syscall structure.
 2023-09-29 17:24:21 +03:00
Bananymous 48096b18c2 LibC: mmap returns MAP_FAILED instead of NULL 2023-09-29 10:38:08 +03:00
Bananymous 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
Bananymous 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
Bananymous 1abf787596 LibC: Add errno for unknown error 2023-09-28 12:06:17 +03:00
Bananymous 61694268e2 LibC: Implement length modifiers to printf 2023-09-28 11:42:57 +03:00
Bananymous 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 a69e5fb288 LibC: add syncsync() to unistd.h 
This is my own WELL NAMED (:D) function that takes a paramemeter
to make the sync operation synchronous.
 2023-09-27 00:35:36 +03:00
Bananymous 3ba15b41a3 Kernel/LibC: remove PATH resoltion from kernel 
I have no idea why I had made PATH environment variable parsing
to be part of the kernel. Now the shell does the parsing and
environment syscall is no longer needed.
 2023-09-23 03:08:14 +03:00
Bananymous 7a7c5e433e Kernel/LibC: add flag to enable/disable sse support 
SSE support is very experimental and causes GP. I decided to make
SSE not default until I get to fixing it :)
 2023-09-23 02:28:25 +03:00
Bananymous 6bb2c80bdd Kernel/LibC: userspace malloc now uses mmap to get memory 
We could remove syscalls to allocate more memory. This was not
something the kernel should have done.
 2023-09-23 02:26:23 +03:00
Bananymous af4af1cae9 Kernel/LibC: add mmap for private anonymous mappings 
This will be used by the userspace to get more memory. Currently
kernel handles all allocations, which is not preferable.
 2023-09-22 23:01:14 +03:00
Bananymous 63dc2b6aa6 Kernel: Implement SYS_SYNC and add sync executable to userspace 
You can (and have to) manually sync disk after writes to it.
 2023-09-11 01:26:27 +03:00
Bananymous 921d95d18f All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous 39a5c52088 Kernel: Fix directory permissions 
We did not care about X bit in directories and instead used only the
R bit for search/read.
 2023-09-08 11:46:53 +03:00
Bananymous 5972c73950 LibC: fix fread implementation 
fread() should read until either size*nitems bytes are read or eof
is reached.
 2023-09-07 16:00:47 +03:00
Bananymous 7184514b5d LibC: add time() implementation 2023-09-04 13:52:58 +03:00
Bananymous dfb18d38f7 LibC: Add rand() and srand() implementation 
This code is from the wikipedia page for Permuted congruential generator
 2023-09-04 13:52:13 +03:00
Bananymous 9901f95d78 Kernel: Add basic nanosleep, only millisecond percision 2023-09-04 12:59:50 +03:00
Bananymous 6f002c926a Kernel: add basic fcntl() with couple of commands and no validation 2023-09-04 12:57:09 +03:00
Bananymous 8032824054 BuildSystem: use -a with rsync 
This allows cmake to not rebuild whole project every time
 2023-08-28 11:38:17 +03:00
Bananymous 7aaea786c2 LibC: Don't undef needed values in inttypes.h 2023-08-24 15:48:14 +03:00
Bananymous 80e7a89f67 BuildSystem: Base sysroot is now distributed as a tar ball 
This allows file and directory permissions work as intended.

cmake is now filled with 'sudo' but with sudo timeout this should be
fine.
 2023-08-23 10:38:21 +03:00
Bananymous 60a2185ee6 Kernel/LibC: implement proper getpgid and setpgid 2023-08-22 14:53:12 +03:00
Bananymous c9243f0d1e Kernel/LibC: Add {get,set}pgrp() 2023-08-22 11:36:33 +03:00
Bananymous b5a7246ba7 LibC: make printf buffer only 128 bytes 
Only reason for it to be big is if you want super large zero padding
for your number. This will eventually be handled without the buffer.
 2023-08-18 16:49:27 +03:00
Bananymous 0abe30af38 BuildSystem: only apply stack usage warning to libc 2023-08-17 20:49:52 +03:00
Bananymous 85c6149138 LibC: add fileno() and fdopen() 
fdopen() doesn't currently care about mode and will have same mode
as the underlying file descriptor.
 2023-08-17 12:03:59 +03:00
Bananymous 79f3aa5419 Kernel/LibC: add dup() syscall and function 2023-08-17 12:03:29 +03:00
Bananymous 569e76a848 LibC: printf handles nan and inf 2023-08-16 10:49:34 +03:00
Bananymous 3a36c30e80 LibC: math.h defines is*() macros and uses builtins for values 2023-08-16 10:41:55 +03:00
Bananymous 9ab7e76a3b LibC: cleanup fstatat 2023-08-11 12:25:15 +03:00
Bananymous 9cb50cba33 LibC: Fix S_IF* macros and add macros for access/type masks 2023-08-11 10:30:50 +03:00
Bananymous e715d52f80 LibC: fix typo 2023-08-02 22:10:12 +03:00
Bananymous b4eddf04c4 LibC: sys/wait.h now has proper exit status macros 
We use the same format as basically every implementation
 2023-08-01 10:32:04 +03:00
Bananymous 2a851b52f1 BuildSystem: Edit build flags regarding sse and warnings 2023-07-31 22:31:17 +03:00
Bananymous 834bf33e57 LibC: we don't parse syscall arguments in unistd 
We just call Kernel::syscall() with 5 arguments from the variadic function.

This was a necessary addition since the syscall() function
used over 2 KiB of stack space.
 2023-07-31 22:24:11 +03:00
Bananymous f6ee4b3496 Kernel: Implement SYS_GET_PID and SYS_TCSETPGID 
we don't have consept of process groups yet
 2023-07-24 22:29:59 +03:00
Bananymous 2dce0a0415 Kernel: Userspace signal handlers are now called one at a time 
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
 2023-07-23 13:34:53 +03:00