Orange

[last geyser]

well you need extra setup so transactions can be routed to the hub

there are a bunch of slot context fields you need to fill in for hubs and devices behind hubs

i have no clue where the problem is in managarm, but on real hw (on 2 different hubs i tried), trying to talk to a device behind a hub yields an usb transaction error

[last geyser]

and also for ehci you need some extra logic to handle split transactions to support usb 1 devices plugged into usb 2 hubs

but for xhci the controller does that for you

[jaunty oxide]

Hmmmm

[inner oak]

i think i should have phys to virt and virt to phys syscalls too (just for conveniences)

[marble radish]

why would userspace need to know the physical address of anything?

[inner oak]

its only for drivers

[inner oak]

maybe its bad idea

[inner oak]

nice

all works on my pc

[narrow mesa]

damn better support than managarm

[inner oak]

now i want to make it work on my laptop

(my laptop have ehci and xhci)

[inner oak]

unix sockets is done

now i need to test it...

(i found what unix sockets is just pipes but more advanced and which how i understand have two buffers for read and write)

[jaunty oxide]

Iirc there was a bsd that implemented pipes using unix sockets

[inner oak]

all works

for recv() and send() ig i can just redirect to write() and read() (i have only sys_write and sys_read implemented for unix sockets)

some random code which tests unix sockets works too

[sly sandal]

this is "so sigma"

[inner oak]

now its time to implement poll()

[inner oak]

my todo list:

1. finally make unix sockets in vfs
2. fifo support

my unix sockets is not live in vfs

i need to make them live in it

[inner oak]

bro i need to stop play deltarune 😭

[inner oak]

i have some bug

something is write to memory which i free when there's >1 cpu

[inner oak]

i found what problem is getting fixed when i disable paging freeing

so ig some code doing some paging magic with cr3 which was already free in my pmm

tomorrow i will debug it

[sly sandal]

i had a similar issue too

for me it was cause i forgot to remove process from child list once it was destroyied

[inner oak]

i found problem

i didnt had lock in my pmm::fullfree

which i use for paging free (my every buddy allocator block can have id and this function free all memory with this id)

[inner oak]

im porting doomgeneric now and i have some problem

if i play some time game freezes and doom trying to spam with waitpid syscalls

ig its just ub (i use syscall which returns timestamp in nano for getting current ms)

[onyx matrix]

doomgeneric running waitpid makes zero sense

[inner oak]

i think so too

[sly sandal]

well it call system

when an error happend it call system to display info using zenity

[sly sandal]

funny enought i have the same issue doomgeneric somehow get stuck on waitpid when doing system

[inner oak]

i found possible problem

in DG_GetTicksMs() if i try to get ticks with hpet it works slowly

but if i try to use tsc or pvclock it just works for 5-10 seconds and freezes

[onyx matrix]

check your nanosleep, because i had an issue where it would create large lag spikes because of it

[inner oak]

its not sleep

[inner oak]

okay i found problem

my hpet currentnano() was broken

i was returning hpet counter directly (i didnt was converting this to nanoseconds)

[onyx matrix]

fuck yeah

[inner oak]

same doom but with fullscreen patch (i had fullscreen diff for doom)

[sly sandal]

how ?

[inner oak]

scaling

i can send how i doing this hold on

https://github.com/cppLover0/Orange/blob/main/tools%2Fpkg%2F3%2Fdoomgeneric%2Fdiff%2Fdoomgeneric.diff#L66

[sly sandal]

oh i thought you were telling doom the resolution

[inner oak]

nah

[sly sandal]

i know it's possible i just don't know how

[onyx matrix]

doomgeneric has a header where you can set the scale

[sly sandal]

you can also do it at runtime

[onyx matrix]

yes but its easier to just tell doomgeneric to do it

[sly sandal]

or maybee you can define the macro to variable

so you can set it at runtime

[inner oak]

fifo is done

[inner oak]

i improved my tsc timer and now orange defaults to tsc timer instead of hpet

[topaz remnant]

cool

[inner oak]

poll() is done

code is

[inner oak]

there's another poll test which targets stdin now

[inner oak]

all that's left is to test poll with unix sockets

and i can finally start xorg porting

[sly sandal]

wow really cool

[inner oak]

maybe its good idea to start to use jinx

[inner oak]

finally i understand how to use jinx

now i need to create recipes for my init, drivers, bash and etc.

[inner oak]

i want symlink directory support

[inner oak]

symlink handling is moved to vfs level

because its easier to handle when in some fs there's symlink which points to another fs

[white karma]

Are you seriously running xp

[inner oak]

its xfce theme

[white karma]

Ah

Looks convincing

[tight heart]

okay my previous account cpplover0 is died

because my phone firmware was erased

idk how

at least my github is created with another email

[sly sandal]

whaaattt

[sly sandal]

@inner oak is this a fake ? (if you don't respond i'll assume it's true)

[tight heart]

maybe look at my profile connections

[sly sandal]

right

yeah that an a proof

[sly sandal]

damn sad 😔

[tight heart]

blame xiaomi

[sly sandal]

😭

[tight heart]

i was playing hoi4 all this time

i should stop play hoi4

[tight heart]

i have some issue

when i trying to build my init and mlibc with jinx (maybe i should compile mlibc with my cross compilers) mlibc ld.so reads libc, ld.so does some mmap and jumps to 0

ig i have broken cross compiler

[tight heart]

for now ill return my old sh build system and try to implement directory symlinks

[tight heart]

finally

symlinks are now cool and on the vfs level

i want to change tty look now

[tight heart]

my pipes is bit bugged

when i trying to do cat test.sh | sh there's happening data loss with some chance

but if i do echo echo hi | sh all fine

[tight heart]

ig its some locking issue

so this is time to spam spinlocks !!!

[tight heart]

finally i fixed this

the issue is what i didnt was setting stdin, stdout, stderr fd state to unused after closing so when process was closing them all was ok but after when process exits it closes again so pipe is being freed and it begin to cry

[tight heart]

now my tty looks better

[jaunty oxide]

Did you memcpy the limine fb or did you implement the image loading in kernel

[tight heart]

im doing image loading in userspace

(i have userspace tty)

[onyx matrix]

orange

[topaz remnant]

really

[tight heart]

now xhci works on my laptop

but i have some problems

1. it doesnt works on ilobilo laptop and virtualbox
2. some old keyboards is fucking slow

also i want to finally implement MSI-X and MSI interrupts for userspace

because polling is skowy

slow*

[tight heart]

wtf all this time i didnt have license

[onyx matrix]

lol the same thing happened to me in i686 bentobox

[tight heart]

each message like this destroys my mental health

(i was suffering with pkg-config 2 hours btw)

im going to sleep

[tight heart]

ill use libsha1 or openssl for sha1 implementation (xorg requires it)

[jaunty oxide]

Do u have libgcrypt

[tight heart]

xorg configure just dont want to detect it

[tight heart]

i fixed this by just adding ac_cv_lib_gcrypt_gcry_md_open=yes

ig there's no will be some issues because i already have libgcrypt in lib and include directories

why there's so much of them 😭

[jaunty oxide]

Welcome to xorg

[tight heart]

is this real xorg april fools

i was suffering why does it faults and i found this

[tight heart]

5 errors left

[jaunty oxide]

Almost there

[tight heart]

why so much pain

[tight heart]

okay i just converted libxfont2 to shared and now all is ok

[tight heart]

its time to implement link()

also i need to optimize my tmpfs node creation

[tight heart]

i dont want to support hard links now so ill just make link() to create symlinks

[tight heart]

and this is time to implement fs related syscalls like mkdir fchmod and etc.

[tight heart]

i want to change my triplet from x86_64-orange to x86_64-orange-mlibc

[onyx matrix]

i wouldn't bother

[inner oak]

finally i restored this account

[inner oak]

now libtool demons are satisfied

[jaunty oxide]

libtoold

[inner oak]

i found some problem

xorg faults on xf86SetDpi

exactly problem is pScrn->privates is just 0

i should ctrl + f this variable and find why xorg left it 0

[inner oak]

i fixed this

it was because some code was accessing privates->ptr which was 0 (ptr was 0)

i grep it and i found what it was setup in some drmmodesetting file

so fix is just add if(!context) return NULL;

in my xorg server patch

[jaunty oxide]

how is xorg

[inner oak]

bad

idk why it faults on this error

[jaunty oxide]

Downlaod xkeyboard stuff and make sure no syscalls fail etc

IIRC xkbcomp used mmapd files

[inner oak]

wait it requires files mmap ???

i support only devfs mmap

[jaunty oxide]

I remember running into troubles with it in old astral

But I could be mistemembering since its been a long time

Best to check a syscall log

[inner oak]

its not mmap

ig i should try to listen all file operations which xorg does before error

[inner oak]

also i found what /usr/share/X11/xkb/compiled directory is just doesn't exists ???

creating this directory back and chmod it again maybe is solution too

(idk why but xorg really hates when some file or directory is not chmod as it wants)

[inner oak]

i found issue

wtf

[inner oak]

i fixed thus

issue was in what i was memcpy to stack before increasing it in auxv stack filling

[inner oak]

there's just a little bit left for xorg port

[inner oak]

and it requires pthreads when my futex is broken

i need to fix this

[viral basalt]

🍊

[inner oak]

sys_clone and futex syscalls are now implemented and works

also i implemented WNOHANG in waitpid (xinit requires it)

and now i need to know why xorg creates socket binds it and starts to just poll this fd with socket

(it didnt had any connected clients)

[jaunty oxide]

probably just polling to wait for incoming connection requests?

[inner oak]

oh

i didnt thought about it

[inner oak]

at least there's white box 😭

(it crashed on division by zero)

also i did a lot optimizations and i want to do more

[hollow raft]

Is that supposed to be xclock?

[inner oak]

yes

[hollow raft]

Lol knew it

I had a similar issue where it crashed with division by zero

Usually issue with fetching time

[inner oak]

how you fixed this

[hollow raft]

Idk trace your syscalls and see if it's returning shit correctly

That's what I did

Oh yeah test with xeyes

[inner oak]

ok

i dont have mouse yet but ig it can work even without mouse

[hollow raft]

Yeah

Then port st 👅

Then dwm

[inner oak]

what is this

[hollow raft]

Then rice your OS and post it on r/unixporn for karma

[hollow raft]

Simple terminal

It's a terminal

[inner oak]

k

[jaunty oxide]

Check if mlibc complains about some unimplemented time function

[jaunty oxide]

Ew naziware

[inner oak]

hell yes

[inner oak]

i saw what it was logging about some timer function and what i didnt had some sysdep implemented

maybe i need to inplement this

[hollow raft]

😔

[jaunty oxide]

Yeah you need it, it does some division on time iirc

[hollow raft]

Yeah

I'm assuming getclock and all

[jaunty oxide]

And if you have an upsated mlibc my and no's scanf float work should allow xclock to tick

[hollow raft]

Oh what

I always thought something was wrong with our kernel's time function for this long 😭

[jaunty oxide]

Nah the standard libx11 or whatever library it was uses %g for float options and scanf float was not implemented

[hollow raft]

Dang

[jaunty oxide]

And the time between each tick is a float

It was also an issue in managarm

[hollow raft]

I always assumed it work because of this screenshot

https://github.com/managarm/managarm/blob/assets/screenshots%2Fmanagarm-glxgears-xclock.png

💀

[jaunty oxide]

Iirc if you forced the clock to redraw by dragging a window over it or something it would do it

Or something else

[inner oak]

FINALLY I DID IT

working xeyes!!!

[velvet nebula]

why is it so patchy?

[inner oak]

my tty overwrites fb

[velvet nebula]

oh ok

[jaunty oxide]

https://tenor.com/view/rain-world-rain-world-watcher-gif-15345038142849397779

[jaunty oxide]

How do u do for background images again

[velvet nebula]

i think just convert it to binary

and then load it

[inner oak]

my userspace tty opens bg and parses it with stb image

[onyx matrix]

hell yeah

[inner oak]

after some magic it gives it to flanterm

[jaunty oxide]

I wss thinking of passing the raw pixels to the kernel tty using an ioctl from userspace

[inner oak]

there's some more clear screen

now my target is implement vt (ctrl + alt + f0-10) and make my syscalls more faster

[sharp coral]

Use two framebuffers, one for the graphics and one for the tty, and depending on what you are operating (tty or graphics) use its dedicated framebuffer

[inner oak]

i am doing this now

[sharp coral]

Nice

[modern cypress]

You deserve the tag osdv

But I really want to ask where you learned os dev, I know kind of the basics? Or maybe even below the basics but there are no good resources. I was looking for a x86 architecture tutorials (better if its like learnopengl) i mean im coming from engine dev

[inner oak]

pain

[modern cypress]

Seems like a pain i would like to have

[onyx matrix]

Nah compile twm

[jaunty oxide]

Twm + xterm and become unix

[onyx matrix]

Port Kwin

[inner oak]

i already compiled this

but i need mouse driver to test

[onyx matrix]

Ahh

[inner oak]

its time to write mouse driver (usb and ps/2)

[modern cypress]

Are you going to start with ps/2?

[inner oak]

yes

its more harder

[modern cypress]

PS/2 is more harder? I didnt know that

[inner oak]

/j

[inner oak]

i am thinking now how to implement double buffering

it looks like trash on my pc but in qemu all ok

[marble radish]

possibly incorrect cache settings for the framebuffer?

It should definitely be faster on baremetal

[inner oak]

it mapped as wc

maybe i should do double buffering in kernel?

[inner oak]

i fixed this by changing memcpy to just rep movsb

[inner oak]

i want to replace forks with pthreads in my tty

[marble radish]

Interesting, what was it before?

[inner oak]

ig it was laggy because scheduling prevented code to copy buffer to framebuffer for small time

[marble radish]

Ah lol

Glad you figured that out

[modern cypress]

Does it boot on baremetal?

[inner oak]

im testing it on my pc and laptop

[inner oak]

xterm and st requires select bruh

i need to find a way to avoid writing select() implementation if i already have poll()

[jaunty oxide]

You can implement select using poll

[jaunty oxide]

If you look at the astral sysdeps on mlibc you can see how I did it

[inner oak]

nice

i tried to do it but it was faulting

[inner oak]

bruh my futex implementation is broken

because there's race condition

[inner oak]

its fixed by adding lock

but now my vmm needs lock because pthreads

[inner oak]

wtf i have race condition in poll()

all was fine but smp...

[inner oak]

its weird

somehow my poll() giving disinformation to tty about POLLIN

only when there's a lot of cpus

so i think this is lock issue

i need to spam spinlocks

[inner oak]

i fixed this

problem is what after poll there was another write which was incrementing my poll read counter and after read there's no data but poll read counter is still bigger than fd read counter

[onyx matrix]

that's weird, my fix was to add a newline at the end of /etc/passwd

[inner oak]

that was because i had bug in kill and when i set SHELL it was faulting on kill

so real fix was setting variable SHELL

[onyx matrix]

ah

i let bash do it for me

[inner oak]

i set this in .bashrc

[inner oak]

i checked my fastfetch now and wtf

what's wrong with shell 😭

[inner oak]

today ill try to port xterm and st

[inner oak]

somehow xterm don't want to clear bit from select which says what there's data in /dev/pty so it just tries to read even there's no data and jt just blocks

st can do output but input is broken

[onyx matrix]

st should be fairly easy to port

[inner oak]

wait maybe they require timer stuff and unix signals

[inner oak]

idk why maybe xterm doesnt works because my screen->event is not NORMAL (i searched in xterm src and found some lines which reads pty) and because of this it loops on reading pty again and again

i need to setup breakpoints

[jaunty oxide]

There is a reason why xterm source has on the readme "abandon all hope, ye who enter here"

[inner oak]

so true

the only thing that helps is grep

[jaunty oxide]

The only reason I ported xterm to astral was unix workstation larp

[inner oak]

i decided to implement unix signals first and after port xterm

ig it just wants them

[jaunty oxide]

I mean you kinda need them for a real tty implementation

Even without job control you need to at least send a SIGHUP so that the applications close when you close xterm

[inner oak]

then i have something broken

[inner oak]

finally i watched sherlock series 2010-2017

[inner oak]

todo: fix bug when xterm and st both stucking at something and this related to futex and poll and maybe unix sockets

[inner oak]

xterm doesnt want to work but st works

so ill give up on xterm and just use st

[onyx matrix]

Here be dragons

[jaunty oxide]

Beware of the leopard

[inner oak]

its time for ps/2 controller

[inner oak]

ps/2 driver in userspace is done

i can get interrupts from mouse now

[inner oak]

ps/2 mouse data parse is done

also new tty bg

[onyx matrix]

rename to Water

[inner oak]

nah

im searching now dark orange backgrounds

because my eyes burn on old background

[onyx matrix]

lol

[inner oak]

usb mouse is done and /dev/mouse done too

now its time to test all on real hw

[inner oak]

i have some issue on real hw

usb mouse is just dont want to report x and instead of x puts all to y

[inner oak]

i fixed this by setting bootprotocol in usbdev initialization (i forgot about it and i always thought what it was setup by default)

now usb mouse works properly on real hw

[onyx matrix]

that boot sequence is soo slow

[inner oak]

what

[onyx matrix]

your os takes forever to boot

are you running with kvm or tcg?

[inner oak]

initrd have a lot of files

[onyx matrix]

my initrd is 163mb and it takes 1 second for limine to load it and 68ms to mount it

[inner oak]

then i have no idea why it slow

i need to try optimize my initrd parse

[onyx matrix]

probably

[jaunty oxide]

Wtf thats a long mount time, do you create nodes for every file on mount or something

[onyx matrix]

wdym a long mount time

also yes my tarfs mounts everything at once instead of doing it lazily like my ext2 driver

[jaunty oxide]

Ah that makes sense then

[inner oak]

wait are you mounting your initrd

im copying it to tmpfs

[onyx matrix]

oh maybe that's why its so slow

you could do CoW for it

[inner oak]

bruh why some keyboards have very slow xhci endpoint interval

i was suffering with this month and the fix is just set interval if its too big for slow usb devices to 5

if (interval > 5) interval = 5;

[stoic zinc]

you accounting for different speed devices encoding the bInterval field differently?

a bInterval of 6 can mean as low as 4ms

[inner oak]

i had interval 9 which ig is slow for mouses

[stoic zinc]

on what speed of device?

HS?

[inner oak]

low speed

[stoic zinc]

that's still over 100Hz

that really a problem?

[inner oak]

idk why but it was laggy until i limited interval

anyway now i can forget about xhci and start patching xf86 input mouse for my os

[stoic zinc]

are you properly calculating ep_ctx->interval = log2(bInterval)?

ep_ctx->interval is encoded as (2 ** value) * 125µs regardless of device speed or endpoint type

if you didn't, that's why it's laggy

[inner oak]

i should log2 this ???????

[stoic zinc]

yes

look

that's why I shared the table above

so the descriptor has a number of milliseconds in it, right?

but the XHCI controller wants a power of 2 of microframes (125µs)

if it's SSP, SS or HS you just subtract 1

if FS isoch, add 2

if FS/LS Interrupt, log2 and add 3

[inner oak]

okay ill try it now

[stoic zinc]

always read the docs carefully, there are almost no fields in the contexts without edge cases

for an LS device with interval value of 9 you want 16ms polling which should be ep_ctx->interval = 7

that's when you know you got it right

or, if you round down (technically wrong but I won't tell anyone) 6

[inner oak]

that worked much better

ty

[stoic zinc]

happy to hear it, will work a lot better with other devices too

[inner oak]

xorg works with mouse very bad

ig my packet thing is bit bugged

[onyx matrix]

Probably

[inner oak]

i understood why it works very bad

im fetching only one packet instead of all

[inner oak]

okay i did some bufferization thing in my xf86-input-mouse and now all works

yes cursor now works

but now i need to fix keyboard input

it broken

[inner oak]

😭

i want to cry

[inner oak]

on real hw xeyes is running perfectly but i have some issues with twm

context menu is appearing and disappearing very fast (my mouse driver bug)

[sharp coral]

I found potential bug in the syscall code

When looking for the syscall

If not found return NULL

[inner oak]

it can be ub btw

[onyx matrix]

Why don't you just use an array directly

[sharp coral]

Won't you get a page fault if you read a bad address tho?

[inner oak]

not returning value from some function which needs to return can be ub (in my case it can ud2)

[inner oak]

maybe xev can help ?

wait

actually input works

it can fetch keypress and keyrelease keys

[inner oak]

but xterm and st cant read any input :(

[jaunty oxide]

Could it be your ptys?

[inner oak]

wait

maybe i didnt setup default ioctls for ptys

like when proc opens /dev/ptmx it didnt setup any flags in termios when creating new tty device

[inner oak]

no it not ioctl issue

they are already setup by term

i need to look st source code and find keyboard input reading code

[inner oak]

yes its some pty issue

[inner oak]

finally i fixed this bug

but there's another bug

when i do newline from keyboard i can type 1 symbol and it freezes

[stoic zinc]

bro why looping instead of table[rax] 💀💀💀

[inner oak]

i wanted to search syscalls by num not array index

[stoic zinc]

why not make the num the array index?

[sharp coral]

makes sense, double the effor when you could half it
syscall_entry_t *syscalls; maybe something like this and just use rax to get the index

[inner oak]

wdym

[white bramble]

void test() {}
void testa() {}
void testb() {}

void *syscall_handlers[] = {
    [1] = (void*)test,
    [2] = (void*)testa,
    [5] = (void*)testb
};
// to get syscall:
syscall_handlers[N]

[inner oak]

isnt it unsupported on c++ compilers

[white bramble]

I mean I tried with C++ on godbolt and it appears to work

[inner oak]

last time i checked with g++ its unsupported

[white bramble]

oh lemme try g++

@inner oak

I had to change it to initialize it later on

but it still can work

[last geyser]

its unsupported if you do it out of order iirc

[inner oak]

i need somehow debug it

like only two hints are available

first it freezes after newline and 1 symbol

second it cant draw screen

it didnt refresh it so if something (not xorg) for example my tty draws to it it didnt refresh

[inner oak]

it freezes on xnextevent

[inner oak]

no its not xevent

it freezes on event handler

[inner oak]

st is finally ported

apps which i need to fix now

xterm (no input)

and twm (cant spawn xterm)

there's real hw test

[jaunty oxide]

Epic

[onyx matrix]

does xorg require pthreads?

[inner oak]

yes

[onyx matrix]

fuck

[inner oak]

its just implementing sys_clone and futex stuff

which is not hard

[onyx matrix]

does xorg require dynamic linking

[inner oak]

yes

[onyx matrix]

dang

[jaunty oxide]

Mostly for the input thread afaik

There might be an option to disable that

[onyx matrix]

ah

i mean pthreads shouldn't be too hard to implement but im not sure about dynamic linking

plus the dependency hell

how many dependencies does xorg have?

to run xserver

[inner oak]

a lot

[inner oak]

what is the problem with dynamic linking btw

[onyx matrix]

well i have no idea how im gonna do it

[jaunty oxide]

R you using mlibc

If so mlibc does it for you pretty much for free

[onyx matrix]

yes

[onyx matrix]

ah

[jaunty oxide]

You just have to load The PT_INTERP and then jump to its entry point

[onyx matrix]

does the kernel have to load both the linker and the executable into memory or only rtld?

[inner oak]

both

[jaunty oxide]

Both

Plus keep in mind the linker is position independent, so you have to apply an offset

Cuz its base is 0

[onyx matrix]

how does the linker know where the executable is?

[onyx matrix]

ah

[jaunty oxide]

Auxv

[onyx matrix]

ah

[inner oak]

now i need to fix ptys (nano in st is broken) and fix some usb mouse bug

[inner oak]

they are fixed

my scheduling is trash

[velvet nebula]

i feel you

lol

it took me a week to fix mine

[inner oak]

i want to rewrite it to some priority based

[velvet nebula]

the first scheduler was running with a lot of luck

i don't even know how tf it was working

[inner oak]

https://cdn.discordapp.com/attachments/1414910583655895124/1422458265005985824/attachment.gif

also i want to add a lot of yield stuff to my syscalls just because when for example xeyes waiting for xorg some response it wastes cpu time

which xorg wants a lot

[modern cypress]

Wait i have been following this project for quite a while now and I wonder if your OS uses linux system call

[inner oak]

no

[modern cypress]

Do you have xHCI driver?

[inner oak]

yes

[modern cypress]

Cool

How painful was it in the scale of 1-10?

[inner oak]

9

[modern cypress]

BRO ARE YOU 15?

That's impressive!

Hats off for you

[inner oak]

https://cdn.discordapp.com/attachments/1414910583655895124/1422458265005985824/attachment.gif

[inner oak]

now im trying to port xv (image viewer) for twm background

[inner oak]

bruh xv src is trash

ill port xwallpaper instead of this

[onyx matrix]

xwallpaper is quite nice

[inner oak]

yes

at least it doesn't have trash src and have normal ./configure

[inner oak]

new github preview also xwallpaper is ported

[onyx matrix]

Sick

/dev/tty3?

[inner oak]

for test i created 2 tty devices in init

ill remove this later

[onyx matrix]

Ah

[inner oak]

now i need to fix xterm

i dont want to port it but it triggers some bugs in kernel so i need to fix them

[jaunty oxide]

real terminal emulators: xterm
mental illnesses: everything else

[inner oak]

🤫

[inner oak]

bruh what

mmap bug ?

adding lock to mmap (anyway memory allocations should be locked) and disabling yield in poll with timeout worked

[inner oak]

ace of penguins is ported

[sharp coral]

How do distros change the borders? Like the default one in Orange is this tealish color

[inner oak]

its twm default color

[sharp coral]

Is it changeable

[velvet nebula]

why not make your window manager?

[sharp coral]

[inner oak]

yes

[inner oak]

pipe rw optimization done

[inner oak]

bruh why mmap is so slow

how linux gets these values

i need implement memory allocation on page fault

[solid hearth]

damn

nice os

[jaunty oxide]

How r U measyring

[inner oak]

what

[jaunty oxide]

How are you measuring

[inner oak]

void mmap_test() {
    printf("OS mmap test\n");
    for(int i = 0;i < 5;i++) {
        struct timespec start;
        struct timespec end;
        clock_gettime(CLOCK_MONOTONIC,&start);
        void* addr = mmap(0,0x80000,0,MAP_ANONYMOUS,-1,0);
        clock_gettime(CLOCK_MONOTONIC,&end);
        printf("OS mmap test %d - %d ns\n",i,end.tv_nsec - start.tv_nsec);
        
    }
}

[solid hearth]

./a.out 
OS mmap test
OS mmap test 0 - 2933 ns
OS mmap test 1 - 1397 ns
OS mmap test 2 - 1956 ns
OS mmap test 3 - 2375 ns
OS mmap test 4 - 2375 ns

on linux

[inner oak]

i googled and found what it called demand paging

[inner oak]

anyway its fast

[jaunty oxide]

Oh

[inner oak]

priority based scheduling is waits for me

[solid hearth]

do CFS

[onyx matrix]

Do completely unfair scheduler

[narrow mesa]

next_task = tasks[rand() % num_tasks]

[inner oak]

https://tenor.com/view/dark-meme-tiktok-trend-khaby-mechanism-khaby-lame-mechanism-gif-14013412814055246026

[solid hearth]

theoretically that could be completely fair

completely unfair scheduler wouldn't be scheduling at all

[inner oak]

there should be round robin flip coin scheduling

[inner oak]

setpriority() and getpriority() are done

[inner oak]

my yield function is trash

its just asm volatile("int $32")

[onyx matrix]

Mine is similar

[inner oak]

i need to optimize poll() tomorrow

because if i want to increase a processor time per process it gets slow

[jaunty oxide]

do u spin waiting for poll to complete or something

[inner oak]

im checking for poll and if there's no events yielding

but if i add 10 retry attempts it works fine even if this is useless (even on 1 cpu which ig is just time stuff)

[inner oak]

like poll 10 times before yielding

[inner oak]

the issue was not in poll

i just was not yielding in waitpid and it just was cpu time waste

[inner oak]

now my syscalls are optimized

before it was a really slow

now things which can do slow things is

1. disabled doublebuffering (im doing some magic in kernel for it now)
2. priority scheduling is not implemented yet

also im porting gtk now

[modern cypress]

what's happening, I wasn't checking the progress for like 4 or 5 days and you're here already?

[final pilot]

awesome

[modern cypress]

that's truly awesome

[inner oak]

tomorrow ill try to port gedit

[inner oak]

trying to port python day 1

tomorrow ill try to fix all errors

[inner oak]

now its much better

maybe it requires rename() to work

yes it requires rename

ill implement only file rename in tmpfs now

[inner oak]

its not rename

it faults on some aliases import in encodings/__init__.py

[inner oak]

🥳

[timid willow]

Free robux simulator

[vast lake]

how hard was it porting python on a scale of 1-10.

Cuz if it was easy I might just do that before porting doom.

[inner oak]

4

because i already had syscalls to run a lot of stuff so i was only fixing bugs in my kernel

[vast lake]

hmm what syscalls did it need.

[inner oak]

idk

[vast lake]

rn i just have these

might be enough idk

[inner oak]

its not enough 😭

[vast lake]

😭

[solid hearth]

based

[inner oak]

interesting

python dont want to have input if TERM is linux or if TERM is st-color256 it wants 2 byte input

i need to somehow change python input to ascii

[inner oak]

and it dont want to read stdin if poll is fast but if i slow python it tries to read it

i need to look at python src maybe i missing something (it tries to sys_clock_get)

[inner oak]

wait actually input works in scripts

[inner oak]

but in python shell it doesnt work

ig its just some unimplemented stuff/bug which i can debug normally later in some other things and fix

[inner oak]

now python port is done i can finally start porting gobject introspection and gtk

[solid hearth]

I've heard horror stories about gobject introspection

[inner oak]

im too

[inner oak]

gtk requires gl what 😭

then its time to port mesa

[inner oak]

freedesktop gitlab is down 😔

[inner oak]

it alive now

[modern cypress]

cloudflare is down as well

[velvet nebula]

not all cloudflare

my cloudflare zero trust still works

[timid willow]

hamburg is nuked

Cloudflare is down

[velvet nebula]

it's down everywhere

they are starting to fix stuff now

WARP still works tho

[inner oak]

wtf

[inner oak]

my patch for gcc was bit broken and libstdc patch was just skipped

[inner oak]

why llvm compil is so slow

[inner oak]

im compiling this already 20 minutes 😭

[velvet nebula]

i make GH Actions compile it, lol

[inner oak]

20 minutes and only this

[velvet nebula]

lol

[inner oak]

i need this because mesa requires it

[velvet nebula]

use github to compile it while you are away

[inner oak]

im cross compiling it

[velvet nebula]

you can make GH do it for you

[inner oak]

bruh im not compiling llvm

ill try to use mesa without llvm

[inner oak]

what mesa dont want to generate glx

wait maybe it put this to libGL.so

[inner oak]

wtf

[inner oak]

ill just keep zlib as static

because shared for it anyway useless

[inner oak]

nice

mesa with softpipe works

i dont want to compile llvmpipe now just because llvm is fatass

[modern cypress]

That's some serious progress to have within a year 👏

What do you usually refer to when implementing a new feature, especially the basic ones?

[inner oak]

if you mean syscalls then just i do man 2

[modern cypress]

Ow that will definitely help but I mean the whole OS development in general, i struggle to get simple tasks done

[inner oak]

now mesa port is done and i can finally port gtk (gtk requires it in spi core)

[modern cypress]

Wouldn't gtk require opengl? iirc gtk4 initializes opengl and vulkan

[inner oak]

mesa is opengl

[inner oak]

i3wm and gtk port

application class is gtk demo application

[onyx matrix]

[timid willow]

Run your OS in a VM in a VM in a VM

[modern cypress]

i3wm?

Screenshot updated!

i said that proudly as of it's my repo haha

[inner oak]

yes

[inner oak]

i have two bugs now:

1. if i click on current desktop in i3bar it just start turning all memory to garbage until it page fault
2. gtk somehow gets kernelspace addresses when i doing a lot of unspeakable things to it

both happens after sys_read

[inner oak]

i need to do unspeakable things test to my unix sockets

[modern cypress]

Does it work on real hw though?

[inner oak]

yes

orange is usable on real hw cuz i have working xhci driver

[inner oak]

wtf

[jaunty oxide]

xd

[inner oak]

i have git submkdules bit broken

clone uacpi yourself to kernel/src/libc

anyway you can surrender if your gcc version is 15

[modern cypress]

its 14.2

Doesn't work anyways

[inner oak]

i have no idea why but i can normally build cross compiler only in 13-14 versions

[inner oak]

send logs

[modern cypress]

is this error ? "not related to this btw"

"which: no x86_64-orange-mlibc-gcc in (/home/ausr/opt/cross/orange/bin:/home/ausr/cross/bin:/home/ausr/.pyenv/plugins/pyenv-virtualenv/shims:/home/ausr/.pyenv/shims:/home/ausr/.pyenv/bin:/usr/lib/ccache/bin:/home/ausr/cross/bin:/home/ausr/.pyenv/plugins/pyenv-virtualenv/shims:/home/ausr/.pyenv/bin:/home/ausr/miniconda3/bin:/home/ausr/miniconda3/condabin:/home/ausr/.cargo/bin:/home/ausr/.local/share/pnpm:/usr/lib/ccache/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/ausr/.dotnet/tools:/var/lib/snapd/snap/bin:/home/ausr/cc65/bin:/home/ausr/cc65/bin)
It looks like you don't have the cross-compiler installed, or it isn't in your PATH.
If you built your cross-compiler, add it to your PATH with:
export PATH="$HOME/opt/cross/orange/bin:$PATH"
Alternatively, you can build the cross-compiler with: sh build-cross.sh
Also you should have host gcc with version < 14 (i am using 13.3.0)"```

I don't think i have it installed or added to the path

[inner oak]

sh build-cross.sh

[modern cypress]

Cloning linux? the whole damn kernel?

[inner oak]

its for headers which mlibc wants

dw it will clone only one time

[solid hearth]

why not download a tarball

[timid willow]

cause

[inner oak]

wait maybe these bugs are connected

also if i launch i3bar with --verbose flag (prints after events) there's no this bug

[timid willow]

Every time I eat an orange, it reminds me of this 😭

[inner oak]

me too

[inner oak]

i3bar crashes on these lines (in libxcb)

it looks like size which used in memcpy is really big

[solid hearth]

is that i3bar source

[inner oak]

maybe i have problem in recv (its just read syscall to unix socket)

[inner oak]

libxcb

its lines which was called by i3bar

[solid hearth]

why are there raw syscall instructions in it

[inner oak]

i put some breakpoints

to debug it

[solid hearth]

ah

[inner oak]

finally i figured out issue

now its time to fix it

[solid hearth]

what is it

[inner oak]

my recv is trash

[final pilot]

lol i had a very similar issue

it was because i forgot to reset msg controllen to 0 in recvmsg

also need to reset msg_flags to 0

[inner oak]

that worked

ty

my kernel panic is not cool

i want to make it cool

[onyx matrix]

Mine is just a panic message, a witty comment and a backtrace

I get funnier RNG on aarch64 than x86-64

[modern cypress]

This is mine

[inner oak]

why is it stretched

[modern cypress]

I have 21:9 ultrawide monitor

It looks better on regular 16:9 monitor

[timid willow]

fix it

[modern cypress]

Hmm I'll see what I can do

[inner oak]

my todo is implement normal recvmsg and sendmsg functions

[inner oak]

actually my sigma recv to read convert works well

[vast lake]

real sigma.

Let me absolutely not steal that :D

[golden flare]

i like this app imma get it

ah its a website

even cooler

[inner oak]

anyway i need to finally create recvmsg sendmsg syscalls

[inner oak]

i have weird bug with mouse

sometimes xorg can ignore events from mouse and just do nothing but events from keyboard work well

but cursor is getting moved

issue can be in poll or in my sockets

and i getting this only with smp

with 1 core all is fine

[inner oak]

i found what it actually can read events

but only after time

like i can do some things with mouse but they will be handled only after some time

so ig it can be poll issue

[inner oak]

yes its poll issue

[inner oak]

i want to make some thing like dmesg

because serial output is slow

[modern cypress]

also why is initrd so slow?

[inner oak]

it copies initrd to tmpfs

initrd is 1 gb

[inner oak]

not sucking panic is done

i forgot to print cpudata

[vast lake]

Damn thats actually fire.

[solid hearth]

add : after register names

and maybe pad it to 16 digits with zeroes

[inner oak]

k

im going to reject poll counter thing

[inner oak]

im still debugging it

btw

[inner oak]

debugging process is 70-80% done

[modern cypress]

Do you use uACPI?

[inner oak]

yes

[jaunty oxide]

step 1. poll all fds
step 2. yield if none ready
step 3. goto 1

[inner oak]

tomorrow ill try to debug it again and ill try to spam spinlocks everywhere

cuz i have this bug only with more than one cpu

[inner oak]

it looks better now

[timid willow]

the name

THE NAME

[inner oak]

i found what xf86 input mouse actually sends some data via pipe but it looks like some signal (xf86 input keyboard does it too and i have this bug with keyboard too)

[inner oak]

actually xorg reads this pipe

what i want

[310263771] sys_read: trying to red pipe 19 from proc 13

[310264832] syscall_handler_c: sys 46 from 13
[310265631] syscall_handler_c: sys 46 from 13
[310266401] syscall_handler_c: sys 5 from 13
[310267152] syscall_handler_c: sys 46 from 13
[310267920] syscall_handler_c: sys 5 from 13
[310268733] syscall_handler_c: sys 46 from 13
[310330678] sys_poll: polin done fd 19 writ sock 0xffff80007e1c39d8 pip 0x0
[310269506] syscall_handler_c: sys 48 from 13
[310332705] sys_poll: Poll done timeout 59743 from proc 17 num_ev 1
[310275334] syscall_handler_c: sys 9 from 13
[310276102] syscall_handler_c: sys 4 from 13
[310277007] syscall_handler_c: sys 4 from 13
[310277731] syscall_handler_c: sys 9 from 13
[310278387] syscall_handler_c: sys 46 from 13
[310280180] syscall_handler_c: sys 48 from 13

what i dont want ❌

[373279036] sys_read: trying to red pipe 19 from proc 13

[373280015] syscall_handler_c: sys 46 from 13
[373280753] syscall_handler_c: sys 48 from 13
[373380359] sys_write: Writing Not file fd 18 state 2 from proc 15 count 1 writ sock 0x0
[373307493] syscall_handler_c: sys 4 from 13

[inner oak]

finally i fixed this

problem was what sometimes revents in poll() didnt reset

and i didnt gave to poll with timeout more time after yield

[inner oak]

bruh i have another bug

[timid willow]

Bug haven

[viral basalt]

@inner oak I have question, do you use serial or framebuffer to log? Both now and when you've just started. Thanks in advance, please answert TvT

[inner oak]

i use both before userspace after userspace only serial

and i use serial only for debugging

[inner oak]

OH

do you want fucking unexpected plot twist

all these bugs

[inner oak]

that bug

and another bug

existed cuz fucking tsc timer

i forgot to remove tsc timer from sys_clock_get and yall know how tsc is bad with smp things

but i need to get another fast timer

cuz hpet is slow

[solid hearth]

syncronise tsc between all cores

[inner oak]

how

[solid hearth]

you can check out linux code

[inner oak]

maybe ill try to do this kvmclock -> invariant tsc -> hpet

i have kvmclock (pvclock) support i need only implement invariant tsc support

[timid willow]

wat

do you meant like you use serial before user space?

[viral basalt]

Probs

[inner oak]

bruh my memory usage is high asf

[solid hearth]

how high

[inner oak]

there's no memory after two glxgears when i have 4g memory

[solid hearth]

maybe it's leaking

[inner oak]

yeah i need to finally implement munmap

and shared memory too

and i need cow

because shared libraries are too fat

[inner oak]

i want to remove initrd copy to my tmpfs and just mount initrd to /

anyway if some process wants to write file /tmp exists

[solid hearth]

what format do you use for it

[inner oak]

wdym

[solid hearth]

file format

initrd

[inner oak]

.tar

[inner oak]

https://tenor.com/view/me-atrapaste-es-cine-its-cinema-cinema-esto-es-cine-gif-17729711691959966457

[onyx matrix]

Beautiful negative tsc freq

[solid hearth]

bro used %d

also very believable uacpi score

[inner oak]

i swear

anyway ill just keep this sigma fix and start to doing cow, initrd mount thing

[final pilot]

i kinda doubt that would work

for most programs

[inner oak]

actually everything works on real hw but slow because framebuffer

i need somehow make doublebuffering which not sucks

[solid hearth]

are you mapping it with WC?

[inner oak]

yes

[onyx matrix]

Thanks discord for not scrolling all the way down

[final pilot]

huh

if you are mapping it with wc it shouldnt have any performance issue

you shouldnt need to have double buffering in the kernel

[timid willow]

forgot to star this

starred

[inner oak]

i have this in userspace

[modern cypress]

Oh so you use TSC and not PIT?

I just switched to TSC too haha

[modern cypress]

I think he needs to have double buffering because rendering all in one framebuffer is not ideal. If im not correct then feel free to correct me though

[inner oak]

maybe you are right

because only now I noticed what my pat is bugged

[inner oak]

now when all weird bugs are fixed my real sigma todo is cow, priority scheduling, unix signals, disk drivers, fat or ext2 support and port something

[solid hearth]

ext2

[onyx matrix]

you don't have signals?

[inner oak]

yes

[onyx matrix]

oh i thought xorg needed those

[jaunty oxide]

nah, you dont need signals for xorg

only if you want a usable xorg

but like if you never close your xterm windows then theres no issues

[onyx matrix]

oh lmfao

[inner oak]

now i am w*ndows user

[modern cypress]

What happened

[onyx matrix]

w*ndows 11 😭

[viral basalt]

w*ndows 11 😭

[inner oak]

i had break now i can continue orange development

i need to make dependencies list for orange

[inner oak]

i debugging some weird smp bug

where my schedule function gets unmapped stack

[golden flare]

ping unmapped stack he can help you :>

[inner oak]

issue is what process still uses already cr3 which i free before

maybe threads still uses same cr3 even if its free

[golden flare]

check your ctx switch function because its probably not changing cr3 properly

and check if you are actually putting cr3 in when loading the proc an state::EMBRYO

[inner oak]

problem can be what i dont have scheduling lock

[inner oak]

oh

i didnt switched current cr3 in sys_exit

to kernel default

timekeeping in qemu in wsl is awesome

[viral basalt]

I'm surprised that's a real person

Well, I mean there's you, SmashedStack

[golden flare]

you dont know unmapped stack?

[golden flare]

yeah but only ping me if its a smashed stack not unmapped stack

there is a difference

[viral basalt]

[golden flare]

my white name is boring imma go introduce my self

[viral basalt]

What is the definition of Smashed Stack though

[golden flare]

corrupted stack, the most basic explanation

[viral basalt]

Test

[viral basalt]

Ah

Aight aight

[golden flare]

im not corrupted tho :>

[viral basalt]

Hmm, so you're the corruptor then?

[golden flare]

ig so

[viral basalt]

Lmao

[inner oak]

7 days left until my 16th birthday

now ill move my pty stuff to unix sockets and i need to finally implement cow

[vast lake]

6 days left until my 14th birthday.

[timid willow]

I forgot how many days to my own birthday

[solid hearth]

https://www.reddit.com/r/osdev/s/N8r0kbIqQk

[inner oak]

https://tenor.com/view/spider-man-кивает-гифимут-gif-23985387

[inner oak]

maybe i need to post my os to reddit too

like i want star farm

[viral basalt]

LMAO

[inner oak]

im disabling ps/2 driver

its buggy and anyway xhci is my beloved

[onyx matrix]

😭

[white bramble]

from their website too

out of so many combinations bro 😭

[onyx matrix]

😭

[inner oak]

bro what 😭

[velvet nebula]

BRUH

i don't think they should really focus on that rn

[timid willow]

Reminds me of a certain website

[fierce surge]

idk how I came across this message but idk why anybody would know me, I'm not very active

anyway why you gotta do name theft 😔

[inner oak]

because you are unmapped stack

[inner oak]

remapping all memory to read only with vmm is done

i want to do this stuff for cow
process a does fork() and there's new process b - all memory become read only for process a and b
if someone wants to write something my page fault handler allocates new memory for some proc and makes this memory rw, and also marks this memory in vmm as own memory
if there a lot of processes all memory become read only for all processes (there will be some list of processes which share memory)

[inner oak]

right now im doing cow and i am thinking about demand paging

is demand paging can be good

[golden flare]

SmashedStack is not UnmappedStack...

[golden flare]

oh right

bro im mapping you

:>

[timid willow]

TorturedStack

[golden flare]

oh i can rename my other acc. to that

:>

@sharp coral

[sharp coral]

:>

[jaunty oxide]

Wdym by demang paging

[inner oak]

allocate memory on page fault instead of allocating memory in mmap like if i allocate some memory in mmap it will be allocated only when process tries to access it

linux doing this

[jaunty oxide]

Ah yeah do it

Thought you were meaning file stuff or even swap

[inner oak]

now i have two bugs

my cow dont cowing

and it somehow tries to free or do cow stuff to already freed memory

[modern cypress]

Haha, neither do i

I think mine is 8 months until my 18th birthday

[inner oak]

i found why it faults

it looks like my cow counter (how many processes uses this memory) is cursed

[inner oak]

today is my birthday

[jaunty oxide]

happy birth

[inner oak]

ty

[sly sandal]

happy birthday

[inner oak]

wait bruh

i had all this time sex with CoW and just realised what glxgears itself requires a lot of memory (400 mb on host)

anyway ill keep cow because for example gtk love to spam threads

after cow ill do demand paging (alloc memory on page fault)

[timid willow]

What

[inner oak]

opengl is fat

[inner oak]

did you ran glxgears with softpipe enabled

[solid hearth]

this is with software

[inner oak]

what is 388079

[solid hearth]

pid

[jaunty oxide]

keep in mind virt is just what was mmap'd

res is the actual memory in memory

[inner oak]

k

[inner oak]

im still thinking how to get a lot of github stars

[jaunty oxide]

"running C code on my 64 bit operating system" post ro r/osdev gg ez

[inner oak]

im getting shadow banned on reddit idk why

[timid willow]

New account

Post something stupid

We all like for karma or whatever

You get 5+

You post in OSDev

Problem solved

[inner oak]

like if i post anything post getting removed by reddit filters and im getting banned 😔

[timid willow]

Bro check the wording

You better not be saying “I had sexing with CoW” again

[inner oak]

I specifically made it "CoW" instead of "cow" because dirty mind

[timid willow]

By the way the word “sex” gets flagged by Reddit
-# should be common sense but just in case sense English doesn’t seem like your main language

[jaunty oxide]

bro doesnt matter u can post the biggest slop to r/osdev and you'll get a shitton of updoots

(I am still salty) ((ordered by score all time))

[inner oak]

so with "i3 running on my 64 bit operating system" ill get a lot of upvotes and stars

[onyx matrix]

Make a 4 bit os and get 4k stars

[timid willow]

Holy

Great Idea

[timid willow]

Wrong

I posted my OS and it got nuked by moderation for being racist against dinosaurs

Also some how I bullied the sun

-# I don’t even use Reddit btw

[inner oak]

i want to use free list for lazy allocations instead of buddy

buddy only for >4kb allocations for example kernel thread stacks, tmpfs stuff or dma

and i am thinking how much memory give to buddy and free list

50%-50% or 40%-60%

or absolutely sigma 15%-75%

free list will be used for mmap lazy alloc, paging

[worn gale]

It’s simple:
skibidi > Astral

[inner oak]

so i decided

my freelist allocator will something like extension for buddy allocator for 4 kb pages

like it will request from buddy 1 mb memory and after work with it and allocate 4k pages

ill do just because lazy allocation will require speed which buddy dont have a lot

and because freelist is fast memory allocation

[inner oak]

i switched to linux again

also i returned my favorite windows xp theme