Angstrom toolchain tune parameters

Hi everyone,

I'm using instructions from Angstrom Simplified Development setup and
everything works great.

But I'm not sure if compiler generates optimal code for Beagleboard.
Do I need to specify some additional tuning parameters to cross
compiler such as:

-march...
-mtune...
-soft or -hard-float ?
neon ?

and if yes, which one is recommended ? Does it depend on which
Angstrom I'm using (coreoe vs 2011.03) ?

Thanks in advance,
Maksym.

Hi everyone,

I'm using instructions from Angstrom Simplified Development setup and
everything works great.

But I'm not sure if compiler generates optimal code for Beagleboard.
Do I need to specify some additional tuning parameters to cross
compiler such as:

-march...
-mtune...
-soft or -hard-float ?
neon ?

Try:

-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp

Philip

Hi Philip,

aha, I knew something like this should be passed.

Try:

-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp

Philip

Thanks,
Maksym.

Hi,

what about the "-mthumb" option?