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Improve documentation

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-01-05 12:25:15 +00:00
parent b9cd19bc8c
commit 7f376fa6fc
1 changed files with 6 additions and 2 deletions
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8
library/alignment.h
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@ -31,13 +31,17 @@
/*
* Define MBEDTLS_EFFICIENT_UNALIGNED_ACCESS for architectures where unaligned memory
* accesses are known to be safe and efficient.
* accesses are known to be efficient.
*
* All functions defined here will behave correctly regardless, but might be less
* efficient when this is not defined.
*/
#if defined(__ARM_FEATURE_UNALIGNED) \
|| defined(__i386__) || defined(__amd64__) || defined(__x86_64__)
/*
* __ARM_FEATURE_UNALIGNED is defined where appropriate by armcc, gcc 7, clang 9
* (and later versions); all x86 platforms should have efficient unaligned access.
* (and later versions) for Arm v7 and later; all x86 platforms should have
* efficient unaligned access.
*/
#define MBEDTLS_EFFICIENT_UNALIGNED_ACCESS
#endif