Why there is no response for my app on uclinux

[Altera_Forum]

I manage to make my code running on uclinux, but there is no response. 

just as follow:  />./test.bflt /> />  why does this happen? I build it on nios IDE for windows, and use # nios2-linux-uclibc-elf2flt test -R test.o  to convert it to flat format. And got an error, reloc outside, then # nios2-linux-uclibc-flthdr -r test.bflt  upload using ftp client in uclinux and run with no response?  Is there some suggestion? thx

[Altera_Forum]

I think if it did not run you would get an error stating that it was not an executable or something like that? 

 What kind of output does it normally have?

[Altera_Forum]

see the wiki, 

http://nioswiki.jot.com/wikihome/operating...ms/compilehello (http://nioswiki.jot.com/wikihome/operatingsystems/compilehello)

[Altera_Forum]

--- Quote Start ---  originally posted by hippo@Jul 26 2006, 10:19 PM see the wiki, http://nioswiki.jot.com/wikihome/operating...ms/compilehello (http://nioswiki.jot.com/wikihome/operatingsystems/compilehello) <div align='right'><{post_snapback}> (index.php?act=findpost&pid=17137)  --- quote end ---    --- Quote End ---    I want to port a C++ program to uclinux. But I can&#39;t find a way to compile it using the toolchain under linux. Could you suggest a clue?

[Altera_Forum]

--- Quote Start ---  originally posted by spaceli+jul 27 2006, 11:20 am--><div class='quotetop'>quote (spaceli @ jul 27 2006, 11:20 am)</div>  --- quote start ---  <!--quotebegin-hippo@Jul 26 2006, 10:19 PM see the wiki, http://nioswiki.jot.com/wikihome/operating...ms/compilehello (http://nioswiki.jot.com/wikihome/operatingsystems/compilehello) <div align='right'><{post_snapback}> (index.php?act=findpost&pid=17137)  --- quote end ---    --- Quote End ---    I want to port a C++ program to uclinux. But I can&#39;t find a way to compile it using the toolchain under linux. Could you suggest a clue? <div align='right'><{post_snapback}> (index.php?act=findpost&pid=17162)</div> [/b]  --- Quote End ---   The libstdc++, which I built with buildroot, still has problem to run.  Microtronix sell a linux toolchain with C++ support .

[Altera_Forum]

yeah, it seems NIOS2 IDE has stdlibc++, I compile it and use elf2flt to convert it to flat format. but it couldn&#39;t work. Sometimes it tell me reloc outside, sometimes no response. So I get confuse. Maybe CDK from Microtronix could help. 

thx for your clue. So there is no perfect way (of course for free-fee) to make a C++ toolchain,  is it?  By the way, does elf2flt -r means to run with out load? I&#39;m confuse about the parameters in elf2flt. And someone said elf2flt just strips the symbol and debug info from elf and make the header simple, is that right?

[Altera_Forum]

1. the libstdc++ in IDE is for newlib, it can not run in uClinux. 

2. the elf2flt needs several steps, and there are some variation between arch.  for nios2, you should use -elf2flt flag for linkage.  it is difficult to use elf2flt and flthdr alone. 3. it is possible to work out c++ with buildroot. The c++ is compiled and linked, but crashed after c++ func calls. ( I am not a c++ user, I can&#39;t fix the problem. ) .  the tools from Microtronix costs $900, but I think it should be based on buildroot and should be GPL?