forums.ps2dev.org

[apache37]

I know this post is not about cracking PSP AES but hopefully it's useful :p

I get a linker issue with this simple c++ file:

#include <stdio.h>
#include <stdlib.h>

class myClass
{
public:
int a;
};

int main()
{
myClass *p = new myClass;

p->a = 5;
printf("Hello Jello...[%d]\n",p->a);

return 0;
}

Here's the make:
$ make
rm -f *.elf *.o
ee-g++ -D_EE -O2 -G0 -Wall -I/usr/local/ps2dev/ps2sdk/ee/include -I/usr/local/ps2dev/ps2sdk/common/include -I. -c stlt
ry.cpp -o stltry.o
ee-gcc -mno-crt0 -T/usr/local/ps2dev/ps2sdk/ee/startup/linkfile -L/usr/local/ps2dev/ps2sdk/ee/lib -Wl,-Ttext -Wl,0xa0000
\
-o stl.elf /usr/local/ps2dev/ps2sdk/ee/startup/crt0.o stltry.o -lpad -lc -lkernel -lc -lsyscall -lkernel
stltry.o(.data+0x11): In function `main':
stltry.cpp: undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
make: *** [stl.elf] Error 1

The makefile uses these:
include $(PS2SDK)/samples/Makefile.pref
include $(PS2SDK)/samples/Makefile.eeglobal

I'm using the latest toolchain script on cygwin which I just built tonite. If I just use myClass p or myClass *p it works fine. When I make a new one on the heap it shits.


Any ideas ??

[apache37]

Please delete this topic. I added EE_CXXFLAGS += -fno-exceptions and it worked.

Sorry bout that :)

[pixel]

You could also add -lstdc++ and then support exceptions...
_________________
pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.

[apache37]

[pixel]

No, it should be okay.
_________________
pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.

[apache37]

Well here's what I get byt just including <vector> in the same file:
rm -f *.elf *.o
ee-g++ -D_EE -O2 -G0 -Wall -fno-exceptions -I/usr/local/ps2dev/ps2sdk/ee/include
-I/usr/local/ps2dev/ps2sdk/common/include -I. -c stltry.cpp -o stltry.o
In file included from /usr/local/ps2dev/ee/include/c++/3.2.2/cwchar:51,
from /usr/local/ps2dev/ee/include/c++/3.2.2/bits/fpos.h:45,
from /usr/local/ps2dev/ee/include/c++/3.2.2/iosfwd:46,
from /usr/local/ps2dev/ee/include/c++/3.2.2/bits/stl_algobase.h
:70,
from /usr/local/ps2dev/ee/include/c++/3.2.2/vector:67,
from stltry.cpp:3:
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:71: `difftime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:72: `mktime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:73: `time' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:74: `asctime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:75: `ctime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:76: `gmtime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:77: `localtime' not declared
/usr/local/ps2dev/ee/include/c++/3.2.2/ctime:78: `strftime' not declared
make: *** [stltry.o] Error 1

[apache37]

The quote button shouuld not be so close to the edit :p

[pixel]

*rollseyes*

Okay, I remember fixing some things for the vector<> template to work... Now, it surely is related to the #include order you do.

Yes, I know, this is not really good. Try #include the various stdio.h and stuff from ps2sdk BEFORE including anything else in your test file.
_________________
pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.

[apache37]

Well here are my headers:
#include <stdio.h>
#include <stdlib.h>
#include <vector>

Maybe I need to include some specific headers before vector?

[BraveDog]

Yes, something changed in the toolchain, becuase I was able to compile Stella at one time. Now I get this.

[pixel]

Okay, I think I know what's wrong. Can you guys try to remove/rename the time.h file in the ee/include directory ?
_________________
pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.

[spambait]

I have already ps2sdk patches that solve the cstddef and ctime problems. Maybe somebody code could send me a Personal Message on this board where to mail these.

A more severe problem, though, is that libstdc++ seems to be built against newlib, causing lot's of unresolved symbols.

Maybe the cross toolchain should be revisited, usually you do
1) build cross binutils
2) build a minimal cross-gcc
3) use minimal gcc to build cross libraries ("ps2sdk")
4) build a full gcc, using headers and libs from 3)
5) use full gcc to rebuild cross libraries again [optional step]

Basically this means doing away with newlib, but probably ps2sdk is not complete yet as a substitute. It probably also means moving a lot more symbols into libc so that -lc does not depend on anything but crt* and -lgcc.

[pixel]

[BraveDog]

Pixel,
I moved $PS2SDK/ee/include/time.h to a junk filename.
Then tried to compile and yes it is moving along with no problems now.

[pixel]

Thank you. I'll try to complete time.h so that it complies with the posix standard...
_________________
pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.