On Thu, Jan 12, 2017 at 10:55 PM, Jeffrey Walton <noloa...@gmail.com> wrote:
> Does Linaro's GCC 4.9 provide AES and SHA intrinsics?
Crypto is an optional feature that is not enabled by default when
selecting the armv8-a architecture. You either need to specify a
processor that implements the crypto extension, or else you need to
specify the crypto extension when specifying the architecture. The
latter is probably easier. For instance, you can do
-march=armv8-a+crypto to enable the crypto support. You can also
enable crc support by adding "+crc", separately, or in combination
with +crypto.
> $ grep -IR vaeseq_u8 /usr/include
> /usr/include/clang/3.5.0/include/arm_neon.h:__ai uint8x16_t
> vaeseq_u8(uint8x16_t __p0, uint8x16_t __p1) {
> ...
GCC specific header files are normally not in /usr/include. On my
Ubuntu 14.04 system, it is
/usr/lib/gcc/aarch64-linux-gnu/4.8/include/arm_neon.h
and vaeseq_u8 is in there, but only enabled when crypto support is enabled.
Jim
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