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Replace error output with target pragma if possible

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu
2023-02-15 11:46:57 +08:00
parent 35f2b26fd8
commit 64e5d4a2cd
2 changed files with 56 additions and 22 deletions
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24
library/sha256.c
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@ -39,7 +39,29 @@
defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY)
/* *INDENT-OFF* */
# if !defined(__ARM_FEATURE_CRYPTO)
# error "Must use minimum -march=armv8-a+crypto for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
# if defined(__clang__)
# if __clang_major__ < 18
/* TODO: Re-consider above after https://reviews.llvm.org/D131064
* merged.
*
* The intrinsic declaration are guarded with ACLE predefined macros
* in clang, and those macros are only enabled with command line.
* Define the macros can enable those declaration and avoid compile
* error on it.
*/
# define __ARM_FEATURE_CRYPTO 1
# endif
# pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function)
# define MBEDTLS_POP_TARGET_PRAGMA
# elif defined(__GNUC__)
# if __GNUC__ < 6 /* TODO: check sha256 compatible for GCC */
# error "A more recent GCC is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
# else
# pragma GCC target ("arch=armv8-a+crypto")
# endif
# else
# error "Only GCC and Clang supported for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
# endif
# endif
/* *INDENT-ON* */
# include <arm_neon.h>