Portability issues (on PS3)

[inactive123]

Remaining portability issues (this is explicitly for PS3 now, but other platforms will have even more stripped toolchains so let's please take care of all this 'platform' code in FUSE and make it resemble something far more portable than what it is right now) -

Command line : error: L0039: reference to undefined symbol .getopt_long' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(settings.o)" Command line : error: L0039: reference to undefined symbol.getcwd' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(filesel.o)" Command line : error: L0039: reference to undefined symbol .chdir' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(filesel.o)" Command line : error: L0039: reference to undefined symbol.isatty' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(commandl.o)" fixme:process:GetProcessWorkingSetSize (0xffffffff,0x33fbdc,0x33fbd8): stub settings.c(1) : error: L0039: reference to undefined symbol .getopt_long' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(settings.o)" settings.c(1) : error: L0039: reference to undefined symbol.getopt_long' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(settings.o)" filesel.c(1) : error: L0039: reference to undefined symbol .getcwd' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(filesel.o)" filesel.c(1) : error: L0039: reference to undefined symbol.chdir' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(filesel.o)" commandl.c(1) : error: L0039: reference to undefined symbol `.isatty' in file "Z:\home\squarepusher\libretro-super\retroarch\libretro_ps3.a(commandl.o)"

Libretro cores are really opposed to this kind of non-decoupled, kitchensink-like codebase where it tries to do a lot of internals like file and disk I/O on its own. As you can see, it introduces lots of portability hazards.

Not sure what the best way to go about it would be. Maybe we need some kind of libretro-common-like wrapper for certain emulators that need to do file I/O, signals, TTY, and/or other low-level things like that, except in this libretro-common-like wrapper we then make sure it works for every target we support.

[Ezio-PS]

This core compiles now on PS3 without errors but when you try to load a rom you get only a black screen. (tested with RetroArch 1.6.7)

[leiradel]

@Ezio-PS can I have the game you used to test?

[Ezio-PS]

hi @leiradel Sure! It's Outrun (1987)(US Gold).tap

Could be a big endian issue? Or anything else such as moving some piece of code above or below? do you know if this core works fine on wiiu or wii since they should be other big endian machines?

Recently some cores got working on ps3 thanks to some fix for endian issues such as prosystem (look at https://github.com/libretro/prosystem-libretro/commit/5430fbd8026544eb817398268d29f8806257a5a2 ) or more recently on beetle-ngp (look at https://github.com/libretro/beetle-ngp-libretro/commit/da7014be4a0d563274b637a3709474a86b8811f5 )

Anyway should i test another game?

[leiradel]

Could be a big endian issue?

The original emulator supports Wii, and I believe the core works just fine with that platform too.

Anyway should i test another game?

The ideal thing to do would be to test the game with the Fuse emulator, and if it works, then test with the core.

[Ezio-PS]

I tried other 4 games, both .tap than .z80 format and i always get a black screen.

[leiradel]

I assume they work with the Fuse emulator on a PC. Anyway, it's very hard to guess what could be wrong without being able to debug the core.

[Ezio-PS]

I'll try to debug the core in the next days. Anyway for who doesn't own a ps3, it's possible to test retroarch and the cores on the newer ps3 emulator called rpcs3, available for both windows and linux system. Let you a log once i debug the core, but the only way to know more info i guess it'll be put some printf around where the core freezes.

[r-type]

dit you add CFLAGS += -DWORDS_BIGENDIAN -DMSB_FIRST in ps3 makefile.libretro section?

[crystalct]

@vaguerant, how are you?
I ask your help again... i'm tiring to fix build issues of fuse core and try to start at least one game. Now i complied correctly fuse and solved a couple of issues about statof cfg file at start and then i got a crash like a segmentation fault. It could be a big endian issue... so could you tell me if fuse core is working, or was working in the past, on WiiU?

[crystalct]

Solved!

[vaguerant]

Maybe too late now, but just confirming I was able to load up a game in Fuse on Wii U without issues just now.

[crystalct]

I think this issue can be closed.

[Kokokool]

guys, where can I Find a PS3 SELF FUSE core thats works? RA 1.9.0 Fuse core cant load any game (whether is Z80 or TAP).

Any clues?