From d66bba912806b83350afec11a3104a7865d783aa Mon Sep 17 00:00:00 2001 From: "Sergey A. Osokin" Date: Wed, 12 Oct 2022 08:24:45 -0400 Subject: [PATCH] Add support for arm/aarch64 on FreeBSD Change-Id: Ib3495ddedec533b78884100ff2ff76f7370e7dc6 Bug: 505 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/54105 Reviewed-by: David Benjamin Commit-Queue: David Benjamin --- crypto/CMakeLists.txt | 2 ++ crypto/cpu_aarch64_freebsd.c | 59 ++++++++++++++++++++++++++++++++++++ crypto/cpu_arm_freebsd.c | 55 +++++++++++++++++++++++++++++++++ 3 files changed, 116 insertions(+) create mode 100644 crypto/cpu_aarch64_freebsd.c create mode 100644 crypto/cpu_arm_freebsd.c diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt index 1f6dedc05..b6f08b09d 100644 --- a/crypto/CMakeLists.txt +++ b/crypto/CMakeLists.txt @@ -263,9 +263,11 @@ add_library( cipher_extra/tls_cbc.c conf/conf.c cpu_aarch64_apple.c + cpu_aarch64_freebsd.c cpu_aarch64_fuchsia.c cpu_aarch64_linux.c cpu_aarch64_win.c + cpu_arm_freebsd.c cpu_arm_linux.c cpu_arm.c cpu_intel.c diff --git a/crypto/cpu_aarch64_freebsd.c b/crypto/cpu_aarch64_freebsd.c new file mode 100644 index 000000000..462a0be60 --- /dev/null +++ b/crypto/cpu_aarch64_freebsd.c @@ -0,0 +1,59 @@ +/* Copyright (c) 2022, 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 "internal.h" + +#if defined(OPENSSL_AARCH64) && defined(OPENSSL_FREEBSD) && \ + !defined(OPENSSL_STATIC_ARMCAP) + +#include +#include + +#include + +extern uint32_t OPENSSL_armcap_P; + +// ID_AA64ISAR0_*_VAL are defined starting FreeBSD 13.0. When FreeBSD +// 12.x is out of support, these compatibility macros can be removed. + +#ifndef ID_AA64ISAR0_AES_VAL +#define ID_AA64ISAR0_AES_VAL ID_AA64ISAR0_AES +#endif +#ifndef ID_AA64ISAR0_SHA1_VAL +#define ID_AA64ISAR0_SHA1_VAL ID_AA64ISAR0_SHA1 +#endif +#ifndef ID_AA64ISAR0_SHA2_VAL +#define ID_AA64ISAR0_SHA2_VAL ID_AA64ISAR0_SHA2 +#endif + +void OPENSSL_cpuid_setup(void) { + uint64_t id_aa64isar0 = READ_SPECIALREG(id_aa64isar0_el1); + + OPENSSL_armcap_P |= ARMV7_NEON; + + if (ID_AA64ISAR0_AES_VAL(id_aa64isar0) >= ID_AA64ISAR0_AES_BASE) { + OPENSSL_armcap_P |= ARMV8_AES; + } + if (ID_AA64ISAR0_AES_VAL(id_aa64isar0) >= ID_AA64ISAR0_AES_PMULL) { + OPENSSL_armcap_P |= ARMV8_PMULL; + } + if (ID_AA64ISAR0_SHA1_VAL(id_aa64isar0) >= ID_AA64ISAR0_SHA1_BASE) { + OPENSSL_armcap_P |= ARMV8_SHA1; + } + if (ID_AA64ISAR0_SHA2_VAL(id_aa64isar0) >= ID_AA64ISAR0_SHA2_BASE) { + OPENSSL_armcap_P |= ARMV8_SHA256; + } +} + +#endif // OPENSSL_AARCH64 && OPENSSL_FREEBSD && !OPENSSL_STATIC_ARMCAP diff --git a/crypto/cpu_arm_freebsd.c b/crypto/cpu_arm_freebsd.c new file mode 100644 index 000000000..dcc792055 --- /dev/null +++ b/crypto/cpu_arm_freebsd.c @@ -0,0 +1,55 @@ +/* Copyright (c) 2022, 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 "internal.h" + +#if defined(OPENSSL_ARM) && defined(OPENSSL_FREEBSD) && \ + !defined(OPENSSL_STATIC_ARMCAP) +#include +#include + +#include +#include + +extern uint32_t OPENSSL_armcap_P; + +void OPENSSL_cpuid_setup(void) { + unsigned long hwcap = 0, hwcap2 = 0; + + // |elf_aux_info| may fail, in which case |hwcap| and |hwcap2| will be + // left at zero. The rest of this function will then gracefully report + // the features are absent. + elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap)); + elf_aux_info(AT_HWCAP2, &hwcap2, sizeof(hwcap2)); + + // Matching OpenSSL, only report other features if NEON is present. + if (hwcap & HWCAP_NEON) { + OPENSSL_armcap_P |= ARMV7_NEON; + + if (hwcap2 & HWCAP2_AES) { + OPENSSL_armcap_P |= ARMV8_AES; + } + if (hwcap2 & HWCAP2_PMULL) { + OPENSSL_armcap_P |= ARMV8_PMULL; + } + if (hwcap2 & HWCAP2_SHA1) { + OPENSSL_armcap_P |= ARMV8_SHA1; + } + if (hwcap2 & HWCAP2_SHA2) { + OPENSSL_armcap_P |= ARMV8_SHA256; + } + } +} + +#endif // OPENSSL_ARM && OPENSSL_OPENBSD && !OPENSSL_STATIC_ARMCAP