Homebrew Official libiosuhax - PPC IPC library for communication to /dev/iosuhax

[shinyquagsire23]

I realized I had to edit the Makefile still but another error:

LIBS    := -lz -liosuhax

c:/devkitPro/portlibs/ppc/lib\libiosuhax.a(iosuhax.o): In function `IOSUHAX_Open':
iosuhax.c:(.text.IOSUHAX_Open+0x3e): undefined reference to `IOS_Open'
iosuhax.c:(.text.IOSUHAX_Open+0x42): undefined reference to `IOS_Open'
iosuhax.c:(.text.IOSUHAX_Open+0x72): undefined reference to `IOS_Ioctl'
iosuhax.c:(.text.IOSUHAX_Open+0x76): undefined reference to `IOS_Ioctl'
iosuhax.c:(.text.IOSUHAX_Open+0xaa): undefined reference to `IOS_Close'
iosuhax.c:(.text.IOSUHAX_Open+0xb2): undefined reference to `IOS_Close'
collect2.exe: error: ld returned 1 exit status
make[1]: *** [/d/Consoles/WiiU/Applications/Browser/tcpgecko/tcpgecko.elf] Error 1
make: *** [build] Error 2

It doesn't find the IOSU functions referenced in the library which is odd. How come?

They have to be defined? As far as browser stuff goes, you have to import and define everything manually. WUT and HBC samples have things which do this but for browser it's a little more tricky.

 

[BullyWiiPlaza]

They have to be defined? As far as browser stuff goes, you have to import and define everything manually. WUT and HBC samples have things which do this but for browser it's a little more tricky.

This is for the Homebrew Launcher. It builds an ELF. It's not for the browser (anymore).

 

[shinyquagsire23]

This is for the Homebrew Launcher. It builds an ELF. It's not for the browser (anymore).

Something like https://github.com/FIX94/haxchi/blo...ler/src/dynamic_libs/os_functions.c#L147-L150 and https://github.com/FIX94/haxchi/blo...ler/src/dynamic_libs/os_functions.c#L262-L265 then should work fine.

 

[BullyWiiPlaza]

Something like https://github.com/FIX94/haxchi/blo...ler/src/dynamic_libs/os_functions.c#L147-L150 and https://github.com/FIX94/haxchi/blo...ler/src/dynamic_libs/os_functions.c#L262-L265 then should work fine.

Yes, it compiles now. Thanks everyone

 

[Nerdtendo]

So I was directed to this forum because I am considering developing. I'm still just learning programming (I've made 1 basic game using Python and am working on a more complex one) and I'm also pretty young (I would rather not specify my age) so who here can give me a noob rundown of homebrew development and how it works?

 

[BullyWiiPlaza]

So I was directed to this forum because I am considering developing. I'm still just learning programming (I've made 1 basic game using Python and am working on a more complex one) and I'm also pretty young (I would rather not specify my age) so who here can give me a noob rundown of homebrew development and how it works?

You learn C programming and then install devkitPro/with libraries potentially to get started with compiling projects. You better use some existing project and modify it to do what you want instead of starting from scratch.

 

[Nerdtendo]

You learn C programming and then install devkitPro/with libraries potentially to get started with compiling projects. You better use some existing project and modify it to do what you want instead of starting from scratch.

Alright, that she all i need to know. I'll probably tinker with Python a bit more beforehand moving on to C but I'll look into this.

 

[QuarkTheAwesome]

Alright, that she all i need to know. I'll probably tinker with Python a bit more beforehand moving on to C but I'll look into this.

When do you think about this again, a useful getting-started overview is here.

 

[Maschell]

Yes, it compiles now. Thanks everyone

There is also a dynamics_libs common repo that everyone can use and include into their projects as a submodule (but nobody is doing except me...)

 

[BullyWiiPlaza]

Well, I used this library now but the console crashes on the very first call to IOSUHAX_Open(). Here is the code:

case COMMAND_IOSUHAX_READ_FILE: {
    log_print("COMMAND_IOSUHAX_READ_FILE");

    // TODO Crashes console on this call
    int returnValue = IOSUHAX_Open(NULL);
    log_print("IOSUHAX_Open Done");
    log_printf("IOSUHAX_Open: %i", returnValue);

    if (returnValue < 0) {
        goto IOSUHAX_OPEN_FAILED;
    }

    int fileSystemFileDescriptor = IOSUHAX_FSA_Open();
    log_printf("IOSUHAX_FSA_Open: %i", fileSystemFileDescriptor);

    if (fileSystemFileDescriptor < 0) {
        goto IOSUHAX_FSA_OPEN_FAILED;
    }

    int fileDescriptor;
    const char *filePath = "/vol/storage_usb/usr/title/0005000e/1010ed00/content/audio/stream/pBGM_GBA_CHEESELAND_F.bfstm";
    returnValue = IOSUHAX_FSA_OpenFile(fileSystemFileDescriptor, filePath, "rb", &fileDescriptor);
    log_printf("IOSUHAX_FSA_OpenFile: %i", returnValue);

    if (returnValue < 0) {
        goto IOSUHAX_OPEN_FILE_FAILED;
    }

    fileStat_s fileStat;
    returnValue = IOSUHAX_FSA_StatFile(fileSystemFileDescriptor, fileDescriptor, &fileStat);
    log_printf("IOSUHAX_FSA_StatFile: %i", returnValue);

    if (returnValue < 0) {
        goto IOSUHAX_READ_FILE_FAILED_CLOSE;
    }

    void *fileBuffer = MEMBucket_alloc(fileStat.size, 4);
    log_printf("File Buffer: %p", fileBuffer);

    if (!fileBuffer) {
        goto IOSUHAX_READ_FILE_FAILED_CLOSE;
    }

    size_t totalBytesRead = 0;
    while (totalBytesRead < fileStat.size) {
        size_t remainingBytes = fileStat.size - totalBytesRead;
        int bytesRead = IOSUHAX_FSA_ReadFile(fileSystemFileDescriptor,
                                             fileBuffer + totalBytesRead,
                                             0x01,
                                             remainingBytes,
                                             fileDescriptor,
                                             0);
        log_printf("IOSUHAX_FSA_ReadFile: %i", bytesRead);

        if (bytesRead <= 0) {
            goto IOSUHAX_READ_FILE_FAILED_CLOSE;
        } else {
            totalBytesRead += bytesRead;
        }
    }

    log_printf("Bytes read: %i", totalBytesRead);

    IOSUHAX_READ_FILE_FAILED_CLOSE:

    returnValue = IOSUHAX_FSA_CloseFile(fileSystemFileDescriptor, fileDescriptor);
    log_printf("IOSUHAX_FSA_CloseFile: %i", returnValue);

    IOSUHAX_OPEN_FILE_FAILED:

    returnValue = IOSUHAX_FSA_Close(fileSystemFileDescriptor);
    log_printf("IOSUHAX_FSA_Close: %i", returnValue);

    IOSUHAX_FSA_OPEN_FAILED:

    returnValue = IOSUHAX_Close();
    log_printf("IOSUHAX_Close: %i", returnValue);

    IOSUHAX_OPEN_FAILED:

    break;
}

I intend to read a file from Mario Kart 8 from the USB and hard-coded the path for testing. In case there is something wrong with it, thanks for any indications.

Only the first log is printed so it is obvious that it crashed exactly at the first call:

I tried in the Wii U menu and in some Wii U game but same result. Why does it crash? Since the code compiled to begin with, the function is not undefined or anything so it should execute correctly. I didn't modify the libiosuhax at all. I only used CBHC booting the system menu with patches however, no Mocha. With Mocha, it freezes after the TCP Gecko Installer when the Wii U menu loads :/

 

[Maschell]

Check the logs of the console with ftpiiu everywhere

Edit: ONLY Mocha supports libiosuhax on dev/iosuhax, so I guess thats the problem. It shouldn't crash though.
(CBHC needs some workarround I personally don't really like)
Probabaly the fact that the TCP Installer is crashing after using Mocha is the problem

 

[BullyWiiPlaza]

Check the logs of the console with ftpiiu everywhere

What's the file path to check the logs?

Edit: ONLY Mocha supports libiosuhax on dev/iosuhax, so I guess thats the problem. It shouldn't crash though.
(CBHC needs some workarround I personally don't really like)
Probabaly the fact that the TCP Installer is crashing after using Mocha is the problem

So CBHC should use Mocha to avoid having more problems and the TCP Gecko Installer should be fixed so it doesn't crash in certain circumstances? It seems like it because I also don't like how some dimok tools don't work with CBHC's system menu patches. There is just no reason for that

 

[Maschell]

I also don't like how some dimok tools don't work with CBHC's system menu patches. There is just no reason for that

The otherway round. CBHC doesn't support libiosuhax, because it's "just" patching some function and is no real CFW.
I personally would just use Mocha and no CBHC at all

The logs are in "storage_slc/logs"

 

[brienj]

Check the logs of the console with ftpiiu everywhere

Edit: ONLY Mocha supports libiosuhax on dev/iosuhax, so I guess thats the problem. It shouldn't crash though.
(CBHC needs some workarround I personally don't really like)
Probabaly the fact that the TCP Installer is crashing after using Mocha is the problem

I'm glad to learn I'm not the only one ...

I have a few homebrew projects I haven't bothered releasing, cause I didn't feel like making it work with the MCP hooks in Haxchi/CBHC.