Several Problems With The Official Sdk

[Oncer]

I just installed the official SDK from GPH at my Linux box (Debian unstable). Almost everything went right, and I have now a fully functional gcc for cross-compiling arm.
Only this error makes me think:

./buildgp2xtools.sh: line 259: arm-gp2x-linux-g++: command not found
Build : gcc
make: *** Keine Targets angegeben und keine »make«-Steuerdatei gefunden.  Schluss.
./buildgp2xtools.sh: line 266: arm-gp2x-linux-g++: command not found
Error : Failed building gcc

(Sorry for the German, I'm using a localized version of Linux, I hope you can figure it out)

I always wanted to port MEGAZEUX (v2.81) to the GP2X, and this is where the actual problems start. I got all the libraries needed by the game, and I also have the source code. I modified the Makefiles to use the pre-built GP2X libraries instead of my i386 ones. But I can't compile C++ code!

cd contrib/libmodplug/src && make && cd ../../..
make[1]: Entering directory `/home/simon/Projekte/gp2x/mzx281c/contrib/libmodplug/src'
arm-gp2x-linux-gcc -O2 -Wall -Ilibmodplug -I. -c fastmix.cpp -o fastmix.o
arm-gp2x-linux-gcc: fastmix.cpp: C++ compiler not installed on this system
make[1]: *** [fastmix.o] Fehler 1
make[1]: Leaving directory `/home/simon/Projekte/gp2x/mzx281c/contrib/libmodplug/src'
make: *** [subdir] Fehler 2

So, how can I compile C++ code for the GP2X? Please, help me!

 

[mth411]

g++ on most machines for c++.
Good luck, always like to hear of more games.

 

[Oncer]

Yeah, and this is my problem. If you look on the first error message I posted, you'll see that the g++ arm cross-compiler somehow failed to compile.

And.. by the way, if I had the g++ cross-compiler, wouldn't I also need a cross-compiled libstdc++?

Has anyone here got C++ code working with the GP2X?

 

[Mudi]

Yeah, it works using devkitGP2X or oopo's. I'd recommend these anyway, since the official one (IIRC) uses gcc 2.95 and both of the above use GCC4.

 

[Oncer]

Strange. I tried devkitGP2X before (the one with the "build.sh") and it couldn't compile glibc.

Here's the error:

make[2]: *** [/home/simon/Tools/gp2x/build/glibc-2.3.5/math/s_isinf.os] Fehler 1make[2]: Leaving directory `/home/simon/Tools/gp2x/glibc-2.3.5/math'
make[1]: *** [math/subdir_lib] Fehler 2
make[1]: Leaving directory `/home/simon/Tools/gp2x/glibc-2.3.5'
make: *** [all] Fehler 2
Error building glibc

I googled about it and I found some newsgroup posts saying that glibc-2.3.5 and gcc-4.0.2 (which devkitGP2X uses) are not compatible. I also didn't find a patch for it.. where did you download devkitGP2X?

/EDIT: OK, I have found some patches now, at http://kegel.com/crosstool/crosstool-0.42/...es/glibc-2.3.5/. I installed all of the glibc-2.3.5 patches (except for the mingw one), and I'm recompiling glibc just ATM. Let's see if it works now...

/EDIT2: In the file glibc-2.3.5/sysdeps/unix/sysv/linux/arm/ioperm.c, you have to replace the following to prevent an error:

-  static int iobase_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_BASE };
-  static int ioshift_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_SHIFT };
+  static int iobase_name[] = { CTL_BUS, CTL_BUS_ISA,
BUS_ISA_PORT_BASE };
+  static int ioshift_name[] = { CTL_BUS, CTL_BUS_ISA,
BUS_ISA_PORT_SHIFT };

Let's see if it compiles NOW..

/EDIT3: Another error
This change is needed:

+@@ -357,7 +357,14 @@
 #ifdef RESOLVE

 /* Deal with an out-of-range PC24 reloc.  */
-static Elf32_Addr
+#if __GNUC__ >= 4
+  auto inline Elf32_Addr
+#else
+  static inline Elf32_Addr
+#endif
+#if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
+  __attribute ((always_inline))
+#endif
 fix_bad_pc24 (Elf32_Addr *const reloc_addr, Elf32_Addr value)
 {
   static void *fix_page;

/EDIT4:
And another error
I'm tired of messing with the sources.. and everytime compiling it from the beginning.

How the hell have you guys compiled this thing?? Is there a huge patch archive somewhere, or does it just run with the buildscript for you?
What could I've done wrong?

I'm going to bed now.

/EDIT5:
Forget the whole error thing. Look at my post below.

Simon

 

[Mudi]

Download the big oopo's toolchain from the archive (http://archive.gp2x.de/cgi-bin/cfiles.cgi?0,0,0,0,14,1609), comment it to keep it from compiling SDL_svg in the libs makefile, and use it. The only thing that doesn't compile is SDL_svg, and I can't think of any real reason you need that library anyway (unless you want to use vector graphics for some reason)

It automatically builds glibc and a bunch of other stuff with no needed user intervention, which I like.

EDIT: Come to think of it, I thought devkitgp2x has glibc to start with too. Could be wrong though.

 

[Oncer]

Yes, devkitGP2X has in fact glibc included.

I just had the urge to hit myself with a big sharp and/or heavy thing... I now know the mistake I made..

See, the devkitGP2X_buildscript.tar.bz2 contains two things: the "build.sh" which downloads, patches and installs gcc, glibc, whatever. The second thing is a directory named "patches" where all the patches lie to make glibc-2.3.5 and gcc-4.0.2 work together.
I (<--dumb) unzipped the whole thing, did some other thing, then noticed that it was in the wrong Directory and moved it to a new one. Only the build.sh, not the "patches" thing. So it downloaded everything, failed to patch it and continued with many compile errors. And I didn't notice it.

So I went looking for patches, recompiling, writing down the errors, looking for other patches.. despite they were all nicely waiting on my HD. 3 hours I guess...

Argh! :angry: :blink:

Simon