Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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41 lines
1.6 KiB
41 lines
1.6 KiB
/* Copyright (c) 2018, Google Inc. |
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* Copyright (c) 2020, Arm Ltd. |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
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#include "internal.h" |
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#if defined(OPENSSL_AARCH64) && defined(OPENSSL_WINDOWS) && \ |
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!defined(OPENSSL_STATIC_ARMCAP) |
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#include <windows.h> |
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#include <openssl/arm_arch.h> |
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extern uint32_t OPENSSL_armcap_P; |
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void OPENSSL_cpuid_setup(void) { |
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// We do not need to check for the presence of NEON, as Armv8-A always has it |
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OPENSSL_armcap_P |= ARMV7_NEON; |
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if (IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE)) { |
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// These are all covered by one call in Windows |
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OPENSSL_armcap_P |= ARMV8_AES; |
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OPENSSL_armcap_P |= ARMV8_PMULL; |
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OPENSSL_armcap_P |= ARMV8_SHA1; |
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OPENSSL_armcap_P |= ARMV8_SHA256; |
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} |
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// As of writing, Windows does not have a |PF_*| value for ARMv8.2 SHA-512 |
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// extensions. When it does, add it here. |
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} |
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#endif // OPENSSL_AARCH64 && OPENSSL_WINDOWS && !OPENSSL_STATIC_ARMCAP
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