This imports 753316232243ccbf86b96c1c51ffcb41651d9ad5,
46f4e1bec51dc96fa275c168752aa34359d9ee51, and
32bbb62ea634239e7cb91d6450ba23517082bab6.
The last commit fixes a detection of big-endian aarch64 in the kernel,
which we do not support at all, but is imported to reduce the upstream
diff. Though it points out a messy part of arm_arch.h: __ARMEL__ and
__ARMEB__ are specific to 32-bit ARM. __AARCH64EB__ and __AARCH64EL__
are the 64-bit ones. But OpenSSL's arm_arch.h defines __ARME[LB]__ for
aarch64 and uses it in perlasm. We should fix the files upstream to
look at the aarch64 ones. (Indeed our own base.h assumes __ARMEL__
implies 32-bit ARM.)
Change-Id: I6c2241e103a97e8c3599cdfa43dcc6f30d4a2581
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/50806
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
David Benjamin