Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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61 lines
1.8 KiB
61 lines
1.8 KiB
/* Copyright (c) 2022, Robert Nagy <robert.nagy@gmail.com> |
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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 <openssl/cpu.h> |
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#if defined(OPENSSL_AARCH64) && defined(OPENSSL_OPENBSD) && \ |
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!defined(OPENSSL_STATIC_ARMCAP) |
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#include <sys/sysctl.h> |
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#include <machine/cpu.h> |
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#include <machine/armreg.h> |
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#include <openssl/arm_arch.h> |
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#include "internal.h" |
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void OPENSSL_cpuid_setup(void) { |
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int isar0_mib[] = { CTL_MACHDEP, CPU_ID_AA64ISAR0 }; |
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uint64_t cpu_id = 0; |
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size_t len = sizeof(cpu_id); |
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if (sysctl(isar0_mib, 2, &cpu_id, &len, NULL, 0) < 0) { |
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return; |
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} |
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OPENSSL_armcap_P |= ARMV7_NEON; |
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if (ID_AA64ISAR0_AES(cpu_id) >= ID_AA64ISAR0_AES_BASE) { |
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OPENSSL_armcap_P |= ARMV8_AES; |
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} |
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if (ID_AA64ISAR0_AES(cpu_id) >= ID_AA64ISAR0_AES_PMULL) { |
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OPENSSL_armcap_P |= ARMV8_PMULL; |
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} |
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if (ID_AA64ISAR0_SHA1(cpu_id) >= ID_AA64ISAR0_SHA1_BASE) { |
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OPENSSL_armcap_P |= ARMV8_SHA1; |
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} |
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if (ID_AA64ISAR0_SHA2(cpu_id) >= ID_AA64ISAR0_SHA2_BASE) { |
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OPENSSL_armcap_P |= ARMV8_SHA256; |
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} |
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if (ID_AA64ISAR0_SHA2(cpu_id) >= ID_AA64ISAR0_SHA2_512) { |
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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_OPENBSD && !OPENSSL_STATIC_ARMCAP
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