ref: 2bbc75bddc6f2a07056ff017108e35f14061041b
dir: /third_party/boringssl/src/crypto/cpu-ppc64le.c/
/* Copyright (c) 2016, 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_PPC64LE)
#include <sys/auxv.h>
#include "internal.h"
#if !defined(PPC_FEATURE2_HAS_VCRYPTO)
// PPC_FEATURE2_HAS_VCRYPTO was taken from section 4.1.2.3 of the “OpenPOWER
// ABI for Linux Supplement”.
#define PPC_FEATURE2_HAS_VCRYPTO 0x02000000
#endif
void OPENSSL_cpuid_setup(void) {
OPENSSL_ppc64le_hwcap2 = getauxval(AT_HWCAP2);
}
int CRYPTO_is_PPC64LE_vcrypto_capable(void) {
return (OPENSSL_ppc64le_hwcap2 & PPC_FEATURE2_HAS_VCRYPTO) != 0;
}
#endif // OPENSSL_PPC64LE