Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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62 lines
1.8 KiB
62 lines
1.8 KiB
2 years ago
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/* 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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