Announce: rmk's nightly builder gets ARM64 support

Robert Schwebel r.schwebel at pengutronix.de
Fri Feb 20 11:03:05 PST 2015


On Fri, Feb 20, 2015 at 10:20:09AM +0000, Russell King - ARM Linux wrote:
> On Fri, Feb 20, 2015 at 09:40:35AM +0000, Russell King - ARM Linux wrote:
> > On Fri, Feb 20, 2015 at 09:24:39AM +0000, Ard Biesheuvel wrote:
> > > Yes, this looks like a GCC problem, not binutils, since there are
> > > other .S files in the same folder that contain crypto instructions
> > > that build fine. This particular one is a .c file with AES
> > > instructions in inline asm() (and we pass -march=armv8-a+crypto)
> > 
> > Maybe we need to get jk's blog post updated - it's currently on of
> > the top hits in google, so this is probably going to trip up a lot of
> > people if they follow the instructions there.
> > 
> > http://jk.ozlabs.org/docs/arm64-toolchain/
> > 
> > So it sounds like possibly the binutils part of those instructions is
> > fine, it's the gcc part which isn't.
> 
> Note that it would also be useful to know where to get a working gcc
> from (preferably in source form - I doubt there's any Fedora 14
> binaries around.)

We have an arm 64 bit toolchain in OSELAS.Toolchain:
http://git.pengutronix.de/?p=OSELAS.Toolchain.git

with this ptxconfig:
http://git.pengutronix.de/?p=OSELAS.Toolchain.git;a=blob;f=ptxconfigs/aarch64-v8a-linux-gnu_gcc-4.9.2_glibc-2.20_binutils-2.24_kernel-3.16-sanitized.ptxconfig

rsc
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