[ts-7000] Re: ts-7500 Floating Point Issus: What compiler Linker Flags are you guys using

["dannyd5000" <>]

Well it turns out doing as I just suggested works for floating point 
conversion, however atof() did not work for me.


I ended up using the older cross-compiler gcc-3.3.4-glibc-2.3.2 and now all 
floating point math works include atof()

I did have to copy over the libstd.so.5 from the crosscompiler library onto the 
board into the /usr/lib to get it to work.

with this cross-compiler and i did not have to have any linker options at all.  
I was also able to build with g++.  

Not sure why i could not get atof() working with a newer version of the 
cross-compile.  If I every figure it out I will post it.






--- In  "dannyd5000" <> wrote:
>
> I now have it working but only if i use gcc and not g++ for linking
> 
> /usr/local/arm-oabi-toolchain/arm-unknown-linux-gnu/bin/arm-unknown-linux-gnu-g++
>  -o build/target/linux2/arm9/app/app -lm -lc -lstdc++ "list of object files 
> here"
> 
> Using g++ links but I get a failure on the TS-7500 at run time when my 
> application uses atof 
> 
> here is the error
> /app: relocation error: ./app: symbol __truncdfsf2, version GCC_3.0 not 
> defined in file libgcc_s.so.1 with link time reference
> 
> 
> Using gcc links and runs on the board with no problems
> 
> /usr/local/arm-oabi-toolchain/arm-unknown-linux-gnu/bin/arm-unknown-linux-gnu-gcc
>  -o /mnt/project/pems/ptc/build/target/linux2/arm9/app/app -lm -lc -lstdc++ 
> 
> 
> Any ideas as to why?  
> 
> 
> --- In  "al" <mitch.stanek@> wrote:
> >
> > No special compiler settings are needed, but you will need to use the -lm 
> > linker option to include the match library.
> > 
> > 
> > --- In  "dannyd5000" <dannyd4000@> wrote:
> > >
> > > I am able to crosscompile and run my software on the board without any 
> > > problems.
> > > 
> > > However when I try to use floating point in my software I am having 
> > > runtime issues.
> > > 
> > > Would those of you using floating point mind posting all of your compiler 
> > > and linking flags.  
> > > 
> > > Thanks in advance
> > >
> >
>




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