When addressing [1], I checked the AEAD code but brain-farted: a key is
aligned in that code, but it's the Poly1305 key, which doesn't matter
here.
It would be nice to align the ChaCha key too, but Android doesn't have
|posix_memalign| in the versions that we care about. It does have
|memalign|, but that's documented as "obsolete" and we don't have a
concept of an Android OS yet and I don't want to add one just for this.
So this change uses the buffer for loading the key again.
(Note that we never used to check for alignment of the |key| before
calling this. We must have gotten it for free somehow when checking the
alignment of |in| and |out|. But there are clearly some paths that don't
have an aligned key:
https://code.google.com/p/chromium/issues/detail?id=454308.)
At least the generation script started paying off immediately ☺.
[1] https://boringssl-review.googlesource.com/#/c/3132/1/crypto/chacha/chacha_vec.c@185
Change-Id: I4f893ba0733440fddd453f9636cc2aeaf05076ed
Reviewed-on: https://boringssl-review.googlesource.com/3270
Reviewed-by: Adam Langley <agl@google.com>
By copying the input and output data via an aligned buffer, the
alignment requirements for the NEON ChaCha implementation on ARM can be
eliminted. This does, however, reduce the speed when aligned buffers are
used. However, updating the GCC version used to generate the ASM more
than makes up for that.
On a SnapDragon 801 (OnePlus One) the aligned speed was 214.6 MB/s and
the unaligned speed was 112.1 MB/s. Now both are 218.4 MB/s. A Nexus 7
also shows a slight speed up.
Change-Id: I68321ba56767fa5354b31a1491a539b299236e9a
Reviewed-on: https://boringssl-review.googlesource.com/3132
Reviewed-by: Adam Langley <agl@google.com>
PNaCl needs OPENSSL_NO_ASM to work and a couple of cases were missing
because it hasn't previously been tested.
Additionally, it defined _BSD_SOURCE and others on the command line,
causing duplicate definition errors when defined in source code.
It's missing readdir_r.
It uses newlib, which appears to use u_short in socket.h without ever
defining it.
Change-Id: Ieccfc7365723d0521f6327eebe9f44a2afc57406
Reviewed-on: https://boringssl-review.googlesource.com/1140
Reviewed-by: Adam Langley <agl@google.com>
