GCC's __ARMEL__ and __ARMEB__ defines denote little- and big-endian arm, respectively. They are not defined on aarch64, which instead use __AARCH64EL__ and __AARCH64EB__. However, OpenSSL's assembly originally used the 32-bit defines on both platforms and even define __ARMEL__ and __ARMEB__ in arm_arch.h. This is less portable and can even interfere with other headers, which use __ARMEL__ to detect little-endian arm. (Our own base.h believes __ARMEL__ implies 32-bit arm. We just happen to check __AARCH64EL__ first. base.h is probably also always included before arm_arch.h.) Over time, the aarch64 assembly has switched to the correct defines, such as in 32bbb62ea634239e7cb91d6450ba23517082bab6. This commit finishes the job. (There is an even more official endianness detector, __ARM_BIG_ENDIAN in the Arm C Language Extensions. But I've stuck with the GCC ones here as that would be a larger change.) See also https://github.com/openssl/openssl/pull/17373 Change-Id: Ic04ff85782e6599cdeaeb33d12c2fa8edc882224 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/50848 Reviewed-by: Adam Langley <agl@google.com>fips-20220613
David Benjamin
3 years ago
committed by
Adam Langley
parent
846a22700f
commit
a94c267787
5 changed files with 17 additions and 16 deletions
Loading…
Reference in new issue