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modules: mbedtls: use proper memory alignment on 64-bit platforms

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This commit instructs mbedtls to use 64-bit alignment in its internal
memory allocation routines when targeting 64-bit platforms. By default
mbedtls uses 32-bit alignment regardless the platform, what may result
in misaligned memory accesses, possibly inducing access time overhead or
exceptions

Signed-off-by: Vladimir Graudt <vladimir.graudt@syntacore.com>
This commit is contained in:
Vladimir Graudt 2023-04-11 19:05:34 +03:00 • committed by Carles Cufí
commit d40dbdf96f
5 changed files with 5 additions and 0 deletions
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1
modules/mbedtls/configs/config-coap.h
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@ -35,6 +35,7 @@
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE (sizeof(void *))
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_NO_PLATFORM_ENTROPY

1
modules/mbedtls/configs/config-mini-dtls1_2.h
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@ -16,6 +16,7 @@
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE (sizeof(void *))
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_NO_PLATFORM_ENTROPY

1
modules/mbedtls/configs/config-mini-tls1_2.h
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@ -15,6 +15,7 @@
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE (sizeof(void *))
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_NO_PLATFORM_ENTROPY

1
modules/mbedtls/configs/config-threadnet.h
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@ -38,6 +38,7 @@
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE (sizeof(void *))
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_NO_PLATFORM_ENTROPY

1
modules/mbedtls/configs/config-tls-generic.h
View file

@ -15,6 +15,7 @@
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE (sizeof(void *))
#define MBEDTLS_PLATFORM_EXIT_ALT
#define MBEDTLS_NO_PLATFORM_ENTROPY