mirror of
https://github.com/Mbed-TLS/mbedtls.git
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Merge pull request #6932 from yuhaoth/pr/fix-arm64-host-build-and-illegal_instrucion-fail
Replace CPU modifier check with file scope target cpu modifiers
This commit is contained in:
Gilles Peskine
GitHub
@ -22,6 +22,23 @@
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* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
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*/
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#if defined(__aarch64__) && !defined(__ARM_FEATURE_CRYPTO) && \
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defined(__clang__) && __clang_major__ < 18 && __clang_major__ > 3
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/* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged.
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*
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* The intrinsic declaration are guarded by predefined ACLE macros in clang:
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* these are normally only enabled by the -march option on the command line.
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* By defining the macros ourselves we gain access to those declarations without
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* requiring -march on the command line.
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*
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* `arm_neon.h` could be included by any header file, so we put these defines
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* at the top of this file, before any includes.
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*/
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#define __ARM_FEATURE_CRYPTO 1
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#define NEED_TARGET_OPTIONS
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#endif /* __aarch64__ && __clang__ &&
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!__ARM_FEATURE_CRYPTO && __clang_major__ < 18 && __clang_major__ > 3 */
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#include "common.h"
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#if defined(MBEDTLS_SHA256_C) || defined(MBEDTLS_SHA224_C)
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@ -37,6 +54,30 @@
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#if defined(__aarch64__)
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# if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) || \
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defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY)
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/* *INDENT-OFF* */
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# if !defined(__ARM_FEATURE_CRYPTO) || defined(NEED_TARGET_OPTIONS)
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# if defined(__clang__)
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# if __clang_major__ < 4
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# error "A more recent Clang is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
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# endif
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# pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function)
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# define MBEDTLS_POP_TARGET_PRAGMA
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# elif defined(__GNUC__)
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/* FIXME: GCC-5 annouce crypto extension, but some intrinsic are missed.
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* Known miss intrinsic can be workaround.
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*/
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# if __GNUC__ < 6
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# error "A more recent GCC is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
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# else
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# pragma GCC push_options
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# pragma GCC target ("arch=armv8-a+crypto")
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# define MBEDTLS_POP_TARGET_PRAGMA
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# endif
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# else
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# error "Only GCC and Clang supported for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
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# endif
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# endif
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/* *INDENT-ON* */
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# include <arm_neon.h>
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# endif
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# if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT)
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@ -353,8 +394,16 @@ int mbedtls_internal_sha256_process_a64_crypto(mbedtls_sha256_context *ctx,
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SHA256_BLOCK_SIZE) ? 0 : -1;
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}
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#endif /* MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT || MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY */
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#if defined(MBEDTLS_POP_TARGET_PRAGMA)
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#if defined(__clang__)
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#pragma clang attribute pop
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#elif defined(__GNUC__)
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#pragma GCC pop_options
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#endif
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#undef MBEDTLS_POP_TARGET_PRAGMA
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#endif
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#endif /* MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT || MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY */
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#if !defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT)
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#define mbedtls_internal_sha256_process_many_c mbedtls_internal_sha256_process_many
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@ -22,6 +22,26 @@
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* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
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*/
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#if defined(__aarch64__) && !defined(__ARM_FEATURE_SHA512) && \
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defined(__clang__) && __clang_major__ < 18 && \
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__clang_major__ >= 13 && __clang_minor__ > 0 && __clang_patchlevel__ > 0
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/* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged.
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*
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* The intrinsic declaration are guarded by predefined ACLE macros in clang:
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* these are normally only enabled by the -march option on the command line.
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* By defining the macros ourselves we gain access to those declarations without
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* requiring -march on the command line.
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*
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* `arm_neon.h` could be included by any header file, so we put these defines
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* at the top of this file, before any includes.
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*/
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#define __ARM_FEATURE_SHA512 1
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#define NEED_TARGET_OPTIONS
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#endif /* __aarch64__ && __clang__ &&
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!__ARM_FEATURE_SHA512 && __clang_major__ < 18 &&
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__clang_major__ >= 13 && __clang_minor__ > 0 &&
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__clang_patchlevel__ > 0 */
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#include "common.h"
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#if defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_SHA384_C)
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@ -43,6 +63,47 @@
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#if defined(__aarch64__)
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# if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT) || \
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defined(MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY)
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/* *INDENT-OFF* */
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/*
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* Best performance comes from most recent compilers, with intrinsics and -O3.
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* Must compile with -march=armv8.2-a+sha3, but we can't detect armv8.2-a, and
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* can't always detect __ARM_FEATURE_SHA512 (notably clang 7-12).
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*
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* GCC < 8 won't work at all (lacks the sha512 instructions)
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* GCC >= 8 uses intrinsics, sets __ARM_FEATURE_SHA512
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*
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* Clang < 7 won't work at all (lacks the sha512 instructions)
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* Clang 7-12 don't have intrinsics (but we work around that with inline
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* assembler) or __ARM_FEATURE_SHA512
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* Clang == 13.0.0 same as clang 12 (only seen on macOS)
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* Clang >= 13.0.1 has __ARM_FEATURE_SHA512 and intrinsics
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*/
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# if !defined(__ARM_FEATURE_SHA512) || defined(NEED_TARGET_OPTIONS)
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/* Test Clang first, as it defines __GNUC__ */
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# if defined(__clang__)
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# if __clang_major__ < 7
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# error "A more recent Clang is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
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# elif __clang_major__ < 13 || \
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(__clang_major__ == 13 && __clang_minor__ == 0 && \
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__clang_patchlevel__ == 0)
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/* We implement the intrinsics with inline assembler, so don't error */
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# else
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# pragma clang attribute push (__attribute__((target("sha3"))), apply_to=function)
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# define MBEDTLS_POP_TARGET_PRAGMA
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# endif
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# elif defined(__GNUC__)
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# if __GNUC__ < 8
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# error "A more recent GCC is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
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# else
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# pragma GCC push_options
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# pragma GCC target ("arch=armv8.2-a+sha3")
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# define MBEDTLS_POP_TARGET_PRAGMA
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# endif
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# else
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# error "Only GCC and Clang supported for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
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# endif
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# endif
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/* *INDENT-ON* */
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# include <arm_neon.h>
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# endif
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# if defined(MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT)
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@ -516,6 +577,15 @@ int mbedtls_internal_sha512_process_a64_crypto(mbedtls_sha512_context *ctx,
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SHA512_BLOCK_SIZE) ? 0 : -1;
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}
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#if defined(MBEDTLS_POP_TARGET_PRAGMA)
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#if defined(__clang__)
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#pragma clang attribute pop
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#elif defined(__GNUC__)
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#pragma GCC pop_options
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#endif
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#undef MBEDTLS_POP_TARGET_PRAGMA
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#endif
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#endif /* MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT || MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY */
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