building a toolchian with hard float support
boy3dfx2 at yahoo.com
Thu Dec 11 10:03:31 CET 2008
Thank you, Adam, I did not think of that posibility.
I will give it a shot.
--- On Wed, 12/10/08, Adam Lackorzynski <adam at os.inf.tu-dresden.de> wrote:
> From: Adam Lackorzynski <adam at os.inf.tu-dresden.de>
> Subject: Re: building a toolchian with hard float support
> To: l4-hackers at os.inf.tu-dresden.de
> Date: Wednesday, December 10, 2008, 11:44 PM
> On Wed Dec 10, 2008 at 04:54:25 -0800, Gabi Voiculescu
> > I have to create a toolchain with hard fpu support for
> arm1176's VFPv2.
> > That's because, by looking at the ARM
> documentation I don't see how I can perform
> > mathematic operations on the FPU (like FABSx, FADDx
> without using these mnemonics), (as it is the case for fpu
> load/store operations), so as far as see, I have to build a
> toolchain that recognized these mnemonics.
> > I dont' know where to start.
> > Has anybody used a script like crosstools for this? I
> hope by creating a new dat file with proper GCC and GLIBC
> argumets I could do the job myself, but I have no idea what
> would those arguments be or where to find them:
> > GCC += ?? --with-float=hard --fpu=vfpv2
> --cpu=arm1176jzf ??
> > GLIBC += ??
> > Where can I find what gcc version might include
> support for my hard fpu? I tried the man pages in gcc-4.1.2
> and gcc-3.4.4 without success and I can't figure out
> where to look for this on gnu.org.
> > Can you point me in the right direction to use.
> Codesourcery is known to have recent pre-built ARM
> compilers including
> libc etc.:
> Adam adam at os.inf.tu-dresden.de
> Lackorzynski http://os.inf.tu-dresden.de/~adam/
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