blob: 98303a033c1a3a4f509956096eb6ed4e20767837 [file] [log] [blame] [edit]
/* Copyright (c) 2018, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <openssl/cpu.h>
#if defined(OPENSSL_AARCH64) && defined(OPENSSL_FUCHSIA) && \
!defined(OPENSSL_STATIC_ARMCAP)
#include <zircon/features.h>
#include <zircon/syscalls.h>
#include <zircon/types.h>
#include <openssl/arm_arch.h>
#include "internal.h"
extern uint32_t OPENSSL_armcap_P;
void OPENSSL_cpuid_setup(void) {
uint32_t hwcap;
zx_status_t rc = zx_system_get_features(ZX_FEATURE_KIND_CPU, &hwcap);
if (rc != ZX_OK || (hwcap & ZX_ARM64_FEATURE_ISA_ASIMD) == 0) {
// Matching OpenSSL, if NEON/ASIMD is missing, don't report other features
// either.
return;
}
OPENSSL_armcap_P |= ARMV7_NEON;
if (hwcap & ZX_ARM64_FEATURE_ISA_AES) {
OPENSSL_armcap_P |= ARMV8_AES;
}
if (hwcap & ZX_ARM64_FEATURE_ISA_PMULL) {
OPENSSL_armcap_P |= ARMV8_PMULL;
}
if (hwcap & ZX_ARM64_FEATURE_ISA_SHA1) {
OPENSSL_armcap_P |= ARMV8_SHA1;
}
if (hwcap & ZX_ARM64_FEATURE_ISA_SHA2) {
OPENSSL_armcap_P |= ARMV8_SHA256;
}
}
#endif // OPENSSL_AARCH64 && !OPENSSL_STATIC_ARMCAP