| /* ==================================================================== |
| * Copyright (c) 1998-2011 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * openssl-core@openssl.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). */ |
| |
| #ifndef OPENSSL_HEADER_ARM_ARCH_H |
| #define OPENSSL_HEADER_ARM_ARCH_H |
| |
| #if !defined(__ARM_ARCH__) |
| # if defined(__CC_ARM) |
| # define __ARM_ARCH__ __TARGET_ARCH_ARM |
| # if defined(__BIG_ENDIAN) |
| # define __ARMEB__ |
| # else |
| # define __ARMEL__ |
| # endif |
| # elif defined(__GNUC__) |
| # if defined(__aarch64__) |
| # define __ARM_ARCH__ 8 |
| # if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
| # define __ARMEB__ |
| # else |
| # define __ARMEL__ |
| # endif |
| // Why doesn't gcc define __ARM_ARCH__? Instead it defines |
| // bunch of below macros. See all_architectires[] table in |
| // gcc/config/arm/arm.c. On a side note it defines |
| // __ARMEL__/__ARMEB__ for little-/big-endian. |
| # elif defined(__ARM_ARCH) |
| # define __ARM_ARCH__ __ARM_ARCH |
| # elif defined(__ARM_ARCH_8A__) |
| # define __ARM_ARCH__ 8 |
| # elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \ |
| defined(__ARM_ARCH_7R__)|| defined(__ARM_ARCH_7M__) || \ |
| defined(__ARM_ARCH_7EM__) |
| # define __ARM_ARCH__ 7 |
| # elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ |
| defined(__ARM_ARCH_6K__)|| defined(__ARM_ARCH_6M__) || \ |
| defined(__ARM_ARCH_6Z__)|| defined(__ARM_ARCH_6ZK__) || \ |
| defined(__ARM_ARCH_6T2__) |
| # define __ARM_ARCH__ 6 |
| # elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || \ |
| defined(__ARM_ARCH_5E__)|| defined(__ARM_ARCH_5TE__) || \ |
| defined(__ARM_ARCH_5TEJ__) |
| # define __ARM_ARCH__ 5 |
| # elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) |
| # define __ARM_ARCH__ 4 |
| # else |
| # error "unsupported ARM architecture" |
| # endif |
| # endif |
| #endif |
| |
| // Even when building for 32-bit ARM, support for aarch64 crypto instructions |
| // will be included. |
| #define __ARM_MAX_ARCH__ 8 |
| |
| // ARMV7_NEON is true when a NEON unit is present in the current CPU. |
| #define ARMV7_NEON (1 << 0) |
| |
| // ARMV8_AES indicates support for hardware AES instructions. |
| #define ARMV8_AES (1 << 2) |
| |
| // ARMV8_SHA1 indicates support for hardware SHA-1 instructions. |
| #define ARMV8_SHA1 (1 << 3) |
| |
| // ARMV8_SHA256 indicates support for hardware SHA-256 instructions. |
| #define ARMV8_SHA256 (1 << 4) |
| |
| // ARMV8_PMULL indicates support for carryless multiplication. |
| #define ARMV8_PMULL (1 << 5) |
| |
| #if defined(__ASSEMBLER__) |
| |
| // Support macros for |
| // - Armv8.3-A Pointer Authentication and |
| // - Armv8.5-A Branch Target Identification |
| // features which require emitting a .note.gnu.property section with the |
| // appropriate architecture-dependent feature bits set. |
| // Read more: "ELF for the Arm® 64-bit Architecture" |
| |
| #if defined(__ARM_FEATURE_BTI_DEFAULT) && __ARM_FEATURE_BTI_DEFAULT == 1 |
| #define GNU_PROPERTY_AARCH64_BTI (1 << 0) // Has Branch Target Identification |
| #define AARCH64_VALID_CALL_TARGET hint #34 // BTI 'c' |
| #else |
| #define GNU_PROPERTY_AARCH64_BTI 0 // No Branch Target Identification |
| #define AARCH64_VALID_CALL_TARGET |
| #endif |
| |
| #if defined(__ARM_FEATURE_PAC_DEFAULT) && \ |
| (__ARM_FEATURE_PAC_DEFAULT & 1) == 1 // Signed with A-key |
| #define GNU_PROPERTY_AARCH64_POINTER_AUTH \ |
| (1 << 1) // Has Pointer Authentication |
| #define AARCH64_SIGN_LINK_REGISTER hint #25 // PACIASP |
| #define AARCH64_VALIDATE_LINK_REGISTER hint #29 // AUTIASP |
| #elif defined(__ARM_FEATURE_PAC_DEFAULT) && \ |
| (__ARM_FEATURE_PAC_DEFAULT & 2) == 2 // Signed with B-key |
| #define GNU_PROPERTY_AARCH64_POINTER_AUTH \ |
| (1 << 1) // Has Pointer Authentication |
| #define AARCH64_SIGN_LINK_REGISTER hint #27 // PACIBSP |
| #define AARCH64_VALIDATE_LINK_REGISTER hint #31 // AUTIBSP |
| #else |
| #define GNU_PROPERTY_AARCH64_POINTER_AUTH 0 // No Pointer Authentication |
| #if GNU_PROPERTY_AARCH64_BTI != 0 |
| #define AARCH64_SIGN_LINK_REGISTER AARCH64_VALID_CALL_TARGET |
| #else |
| #define AARCH64_SIGN_LINK_REGISTER |
| #endif |
| #define AARCH64_VALIDATE_LINK_REGISTER |
| #endif |
| |
| #if GNU_PROPERTY_AARCH64_POINTER_AUTH != 0 || GNU_PROPERTY_AARCH64_BTI != 0 |
| .pushsection .note.gnu.property, "a"; |
| .balign 8; |
| .long 4; |
| .long 0x10; |
| .long 0x5; |
| .asciz "GNU"; |
| .long 0xc0000000; /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */ |
| .long 4; |
| .long (GNU_PROPERTY_AARCH64_POINTER_AUTH | GNU_PROPERTY_AARCH64_BTI); |
| .long 0; |
| .popsection; |
| #endif |
| |
| #endif /* defined __ASSEMBLER__ */ |
| |
| #endif // OPENSSL_HEADER_ARM_ARCH_H |
