verify NEON support in cross toolchain
Michael J. Hammel
crosstoolng@graphics-muse.org
Mon Feb 28 09:26:00 GMT 2011
I'm using Crosstool-NG 1.8.2 to get a cross toolchain for a BeagleBoard.
I'm trying to verify the NEON support. I've enabled the following two
configuration options:
CT_ARCH_FPU="neon"
CT_CC_CORE_EXTRA_CONFIG="--with-fpu=neon"
However, when I try to build the xorg omap driver I get the following
error:
CC sw-exa.lo
{standard input}: Assembler messages:
{standard input}:105: Error: bad instruction `vld1.u8 {d0},[r1]!'
{standard input}:108: Error: bad instruction `vld1.u8 {d1},[r4]!'
{standard input}:109: Error: bad instruction `vld1.u8 {q1},[r7]!'
{standard input}:110: Error: bad instruction `vzip.u8 d0,d1'
{standard input}:111: Error: bad instruction `vld1.u8 {q2},[r6]!'
{standard input}:112: Error: bad instruction `vst2.u8 {q0,q1},[r5]!'
{standard input}:113: Error: bad instruction `vmov.u8 q1,q2'
{standard input}:114: Error: bad instruction `vst2.u8 {q0,q1},[sl]!'
make[5]: *** [image-format-conversions.lo] Error 1
I think this means that neon is not enabled, but I can't be sure yet.
Is there some test I can run to check if the neon support is correctly
turned on? The complete config file is on my site:
http://www.graphics-muse.org/source/xcc/xcc.cfg.1.8.2
Thanks.
--
Michael J. Hammel <crosstoolng@graphics-muse.org>
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