Hacking Luma3DS - Noob-proof 3DS Custom Firmware

[RocketRobz]

Seriously. Can we please get back on topic and stay on topic, even if someone derails the thread?

 

[The Catboy]

Question I've been meaning to ask for quite some time, but what is the exheader.bin?

 

[astronautlevel]

Question I've been meaning to ask for quite some time, but what is the exheader.bin?

It's this: https://www.3dbrew.org/wiki/NCCH/Extended_Header

One of the biggest features of being able to replace the exheader is that you can change the size of the code.bin for apps.

 

[Redferne]

Great I'm receiving insults by PM now...

 

[SciresM]

How's it going man? I sent you a PM asking if you needed help testing NTRBootHax but got no response. I guess you were busy and missed it or something.

Pretty well, all said and done -- and sorry about the PM....I'm awful about responding to PMs here (I have a ton of unread ones). If you're looking to contact me privately, twitter DMs are the fastest way, heh.

Spoiler: aside

The above is general advice, fwiw. I try to respond to all DMs there.

 

[astronautlevel]

Since everything's been buried under a large number of dumb ranting pages, I'll summarize here:

• Legacy is deprecated and the source is gone
• It won't be coming back
• We're going full speed ahead with Rosalina now

 

[ihaveahax]

Since everything's been buried under a large number of dumb ranting pages, I'll summarize here:

• Legacy is deprecated and the source is gone
• It won't be coming back
• We're going full speed ahead with Rosalina now

before this derails into another shitstorm, the legacy code is not permanently gone(that's impossible to do). you can find it in forks and whatnot online. but it's not officially supported anymore, so support for it is not relevant to this thread.

 

[TheCyberQuake]

Bravo to the people posting 7+ pages of useless rant. The devs owe the community NOTHING, and are free to completely remove the entire project if they so choose. They offered to keep the branch up if anyone could give actual replicable bugs in 8.1.1 that didn't exist in the other.
As stated by many people, any crash encountered at this point is usually the fault of the homebrew, the game, Nintendos buggy os or some combination. All of which are not the fault of Luma.

 

[SaffronXL]

With that out of the way, has there been any discussion regarding implementing fine-grained brightness adjustment into Rosalina, as was possible with NTR before 11.5? Or if someone could point me in the direction of where I could start some research into the matter, I would be appreciative.

 

[Deleted member 414991]

With that out of the way, has there been any discussion regarding implementing fine-grained brightness adjustment into Rosalina, as was possible with NTR before 11.5? Or if someone could point me in the direction of where I could start some research into the matter, I would be appreciative.

That is in development, and a pull request will be submitted to luma when it is finished.

 

[SaffronXL]

Not to be a dick, but does the moderation applied to the last few pages seem a bit... Random?

EDIT: Sorry for DP!

 

[hobbledehoy899]

• Legacy is deprecated and the source is gone
• It won't be coming back

For a second I thought you meant that new builds were going to be closed source.

 

[astronautlevel]

For a second I thought you meant that new builds were going to be closed source.

lol no, Luma3DS won't be going closed source (it's actually impossible even if AW wanted to - sdmmc is GPL, and she'd also have to get the consent of every single contributor), and if it did there's no way I would defend it.

 

[hobbledehoy899]

it's actually impossible even if AW wanted to - sdmmc is GPL

Don't forget that what Luma3DS was forked from, ReiNAND, is also under GPLv3.

if it did there's no way I would defend it.

Good for you!

 

[Deleted member 414991]

Don't forget that what Luma3DS was forked from, ReiNAND, is also under GPLv3.Good for you!

Nah, reinand doesn't factor into it. All the old code was rewritten/replaced.

 

[AkitoUF]

Lately I've keep getting an "Error type: Generic" crash while playing Kirby: Planet Robobot.

Anyone else having this? It happens at random and just with this game.

 

[The Catboy]

Don't forget that what Luma3DS was forked from, ReiNAND, is also under GPLv3.Good for you!

Was forked, but the Team has since replaced all of the original ReiNAND code with their own. It's now a completely independent CFW with only a historical tie to it's original parent.

 

[Quantumcat]

Was forked, but the Team has since replaced all of the original ReiNAND code with their own. It's now a completely independent CFW with only a historical tie to it's original parent.

You've gone through an amazing attitude change ---- you seem way more mature. Kudos! I hope @astronautlevel and @TuxSH notice this and now won't have a default defensive, mean position when replying to you now.

 

[The Catboy]

You've gone through an amazing attitude change ---- you seem way more mature. Kudos! I hope @astronautlevel2 and @TuxSH notice this and now won't have a default defensive, mean position when replying to you now.

I've taken some time to really rethink my approach to the CFW scene and realized that I was acting rather immature and overly emotional. I can't help people if I am letting myself be my own worst enemy.
I wish I had something on topic to contribute .-. So anything personal, just contact me directly.

 

[duckbill007]

Hi,

I have a question, but I am not sure that it is a right place to ask.

I am trying to implement gameshark cheats into Rosalina.

Until yesterday I have no skills in 3ds programming, so my questions may be quite dumb.

So, I already get how to add new menu items to Rosalina, how to get current running titleId and pid.
Reading and parsing text file also should not be a big problem - I found a lot of examples in the code.


My question is: how can I change other process memory. I get that I should map part of that memory into current rosalina process, modify and unmap.
But, how to do that?

I found in Input redirection module following code:

        svcGetProcessInfo(&textTotalRoundedSize, processHandle, 0x10002); // only patch .text + .data
        svcGetProcessInfo(&rodataTotalRoundedSize, processHandle, 0x10003);
        svcGetProcessInfo(&dataTotalRoundedSize, processHandle, 0x10004);

        totalSize = (u32)(textTotalRoundedSize + rodataTotalRoundedSize + dataTotalRoundedSize);

        svcGetProcessInfo(&startAddress, processHandle, 0x10005);
        res = svcMapProcessMemoryEx(processHandle, 0x00100000, (u32) startAddress, totalSize);

But in my case for FE:SoV I got following: pid 0x27, startAddress: 0x14018208, totalSize: 0x00100000

So, I do not understand how to apply following ARCode:

0045003C E3A00001
00450040 E12FFF1E

Also, I did not understand in the code example above: why destAddress for map call is 0x00100000? What is that magic number? I thought that I should allocate in rosalina process some buffer and pass its address to map svc call.