[microblaze-uclinux] C++ output problems

[Joshua Moore-Oliva <josh@xxxxxxxxxxxx>]

I am attempting to do a simple hello world with C++.  I have tried 

1) std::cout 
there is no STL that I could find, as per a previous post that was never answered

2) printf 

#include <stdio.h>

int main ( int argc, char **argv  ) {
  printf( "hi\n"  );
  return 0;
}

Produces the following errors
/home/chatgris/chatgris/realmicro/uClinux-dist/include/include -fno-builtin -Wl,-elf2flt -nostartfiles /home/chatgris/chatgris/realmicro/uClinux-dist/lib/crt0.o -L/home/chatgris/chatgris/realmicro/uClinux-dist/lib -o test test.o -lc /usr/local/microblaze-elf-tools/bin/../lib/gcc-lib/microblaze/2.95.3-4/./libgcc.a /usr/local/microblaze-elf-tools/bin/../lib/gcc-lib/microblaze/2.95.3-4/./../../../../microblaze/lib/libc.a
/home/chatgris/chatgris/realmicro/uClinux-dist/lib/libc.a(fflush.o): In function `fflush':
/home/chatgris/chatgris/realmicro/uClinux-dist/uClibc/libc/stdio/stdio.c:2216: multiple definition of `fflush'
/usr/local/microblaze-elf-tools/bin/../lib/gcc-lib/microblaze/2.95.3-4/./../../../../microblaze/lib/libc.a(fflush.o)(.text+0x0): first defined here

3) write 

#include <unistd.h>

int main ( int argc, char **argv  ) {
  write( 0, "hi", 2  );
  return 0;
}


Produces the following errors
/home/chatgris/chatgris/realmicro/uClinux-dist/user/pth/test.cpp:6: undefined reference to `outbyte'
/home/chatgris/chatgris/realmicro/uClinux-dist/user/pth/test.cpp:6: undefined reference to `outbyte'

The exact same programs compile if test.cpp is renamed to test.c and mb-gcc is used instead of mb-g++



Any feedback, even feedback that says "We know this is not working" would be greatly appreciated.

The makefile I am using for both programs is as follows.  

Thanks, Joshua Moore-Oliva

EXEC = test
OBJS = test.o

all: $(EXEC)

$(EXEC): $(OBJS)
        $(CXX) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS)

romfs:
        $(ROMFSINST)    /bin/$(EXEC)

clean:
        -rm -f $(EXEC) *.elf *.gdb *.o
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