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Make sure managed memory blocks are always aligned to 16 bytes #3305

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Merged
ptitSeb merged 1 commit into from
Dec 25, 2025
Merged

Make sure managed memory blocks are always aligned to 16 bytes #3305

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3 changes: 2 additions & 1 deletion src/custommem.c
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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,8 @@ typedef union mark_s {
typedef struct blockmark_s {
mark_t prev;
mark_t next;
uint8_t mark[];
// make sure the data always aligned to 16 bytes, this is needed by KHASH_MAP(khint128_t) for example.
uint8_t __attribute__((aligned(16))) mark[];
} blockmark_t;

#define NEXT_BLOCK(b) (blockmark_t*)((uintptr_t)(b) + (b)->next.offs)
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