Mohamed Moawad 827b12d459 platform: fix -Wcast-align warnings in memory_buffer_alloc.c ...

Cast from 'unsigned char *' to 'memory_header *' through an
intermediate 'void *' to suppress -Wcast-align warnings.

Some Clang-based toolchains (e.g. MetaWare/ARC) enable -Wcast-align
as part of -Wall, unlike standard Clang on x86/ARM. Combined with
-Werror this turns the casts into fatal build errors.

The casts are already alignment-safe at runtime:
- In mbedtls_memory_buffer_alloc_init(), buf is explicitly aligned
  to MBEDTLS_MEMORY_ALIGN_MULTIPLE before the cast.
- In buffer_alloc_calloc(), p is computed from an aligned base plus
  aligned offsets (sizeof(memory_header) and len are both multiples
  of MBEDTLS_MEMORY_ALIGN_MULTIPLE).
- In buffer_alloc_free(), p is derived from a previously aligned
  allocation pointer minus the aligned header size.

Signed-off-by: Mohamed Moawad <moawad@synopsys.com>

2026-04-14 16:35:22 +02:00

19 KiB

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