/* * Copyright 2011-2021 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef OSSL_CRYPTO_ARM_ARCH_H # define OSSL_CRYPTO_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_architectures[] 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 # if !defined(__ARM_MAX_ARCH__) # define __ARM_MAX_ARCH__ __ARM_ARCH__ # endif # if __ARM_MAX_ARCH__<__ARM_ARCH__ # error "__ARM_MAX_ARCH__ can't be less than __ARM_ARCH__" # elif __ARM_MAX_ARCH__!=__ARM_ARCH__ # if __ARM_ARCH__<7 && __ARM_MAX_ARCH__>=7 && defined(__ARMEB__) # error "can't build universal big-endian binary" # endif # endif # ifndef __ASSEMBLER__ extern unsigned int OPENSSL_armcap_P; extern unsigned int OPENSSL_arm_midr; extern unsigned int OPENSSL_armv8_rsa_neonized; # endif # define ARMV7_NEON (1<<0) # define ARMV7_TICK (1<<1) # define ARMV8_AES (1<<2) # define ARMV8_SHA1 (1<<3) # define ARMV8_SHA256 (1<<4) # define ARMV8_PMULL (1<<5) # define ARMV8_SHA512 (1<<6) # define ARMV8_CPUID (1<<7) # define ARMV8_RNG (1<<8) /* * MIDR_EL1 system register * * 63___ _ ___32_31___ _ ___24_23_____20_19_____16_15__ _ __4_3_______0 * | | | | | | | * |RES0 | Implementer | Variant | Arch | PartNum |Revision| * |____ _ _____|_____ _ _____|_________|_______ _|____ _ ___|________| * */ # define ARM_CPU_IMP_ARM 0x41 # define ARM_CPU_PART_CORTEX_A72 0xD08 # define ARM_CPU_PART_N1 0xD0C # define MIDR_PARTNUM_SHIFT 4 # define MIDR_PARTNUM_MASK (0xfff << MIDR_PARTNUM_SHIFT) # define MIDR_PARTNUM(midr) \ (((midr) & MIDR_PARTNUM_MASK) >> MIDR_PARTNUM_SHIFT) # define MIDR_IMPLEMENTER_SHIFT 24 # define MIDR_IMPLEMENTER_MASK (0xff << MIDR_IMPLEMENTER_SHIFT) # define MIDR_IMPLEMENTER(midr) \ (((midr) & MIDR_IMPLEMENTER_MASK) >> MIDR_IMPLEMENTER_SHIFT) # define MIDR_ARCHITECTURE_SHIFT 16 # define MIDR_ARCHITECTURE_MASK (0xf << MIDR_ARCHITECTURE_SHIFT) # define MIDR_ARCHITECTURE(midr) \ (((midr) & MIDR_ARCHITECTURE_MASK) >> MIDR_ARCHITECTURE_SHIFT) # define MIDR_CPU_MODEL_MASK \ (MIDR_IMPLEMENTER_MASK | \ MIDR_PARTNUM_MASK | \ MIDR_ARCHITECTURE_MASK) # define MIDR_CPU_MODEL(imp, partnum) \ (((imp) << MIDR_IMPLEMENTER_SHIFT) | \ (0xf << MIDR_ARCHITECTURE_SHIFT) | \ ((partnum) << MIDR_PARTNUM_SHIFT)) # define MIDR_IS_CPU_MODEL(midr, imp, partnum) \ (((midr) & MIDR_CPU_MODEL_MASK) == MIDR_CPU_MODEL(imp, partnum)) #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