[fpc-devel] CrossCompiling :: Windows -> Linux/MIPS

[Mark Morgan Lloyd]

Sven Barth wrote:
> You should also post how you compiled the compiler (e.g. your batch 
> file) so everyone knows what you did to reach your current state. ;)
> 
> Regards,
> Sven
> 
> On 30.10.2012 21:54, SkyDiablo wrote:
>> so wow !
>>
>> my question have a little prehistory, but direct to the problem. i have
>> compile a crosscompiler;
>>
>> windows -> Linux/MIPS
>>
>> all works fine with one exception. if i start my helloWorld binary on my
>> destination target system, i get this message:
>>
>> FPU emulator disabled, make sure your toolchain was compiled with
>> software floating point support (soft-float)
>>
>> someone can think: "oh, the toolchain is wrong", but no, with the same
>> toolchain and with an c++ source, i can create a working binary with
>> this compiler switch: "-msoft-float".
>>
>> so, how can i implement this "software floating point" behavoir in my
>> FPC binary?

But a couple of days ago I sent him a binary of a "do-nothing" program, 
and via mail he tells me that

-----8<-----
# chmod +x donothing
# ./donothing
-bash: ./donothing: cannot execute binary file

# chmod +x test
# ./test
-bash: ./test: cannot execute binary file

i think i have a big endian system...
----->8-----

Would an empty program give this error if it were an FP issue (and for 
test purposes, can it be compiled so as not to)? Since he's got a 
working C compiler I pointed him at a program that somebody'd written to 
check endianness, but have had no response. Also he's not run  FPC -i 
to check what the compiler thinks it is or run  file  on some of the 
systems's own binaries.

-- 
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]