Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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56 lines
1.9 KiB
56 lines
1.9 KiB
/* Copyright (c) 2018, Google Inc. |
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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_FUCHSIA) && \ |
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!defined(OPENSSL_STATIC_ARMCAP) |
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#include <zircon/features.h> |
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#include <zircon/syscalls.h> |
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#include <zircon/types.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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uint32_t hwcap; |
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zx_status_t rc = zx_system_get_features(ZX_FEATURE_KIND_CPU, &hwcap); |
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if (rc != ZX_OK || (hwcap & ZX_ARM64_FEATURE_ISA_ASIMD) == 0) { |
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// If NEON/ASIMD is missing, don't report other features either. This |
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// matches OpenSSL, and the other features depend on SIMD registers. |
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return; |
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} |
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OPENSSL_armcap_P |= ARMV7_NEON; |
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if (hwcap & ZX_ARM64_FEATURE_ISA_AES) { |
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OPENSSL_armcap_P |= ARMV8_AES; |
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} |
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if (hwcap & ZX_ARM64_FEATURE_ISA_PMULL) { |
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OPENSSL_armcap_P |= ARMV8_PMULL; |
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} |
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if (hwcap & ZX_ARM64_FEATURE_ISA_SHA1) { |
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OPENSSL_armcap_P |= ARMV8_SHA1; |
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} |
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if (hwcap & ZX_ARM64_FEATURE_ISA_SHA256) { |
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OPENSSL_armcap_P |= ARMV8_SHA256; |
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} |
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if (hwcap & ZX_ARM64_FEATURE_ISA_SHA512) { |
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OPENSSL_armcap_P |= ARMV8_SHA512; |
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} |
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} |
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#endif // OPENSSL_AARCH64 && OPENSSL_FUCHSIA && !OPENSSL_STATIC_ARMCAP
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