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Ensure parser buffer is aligned to 64 bytes

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Kovid Goyal
2023-11-15 18:19:22 +05:30
parent c5f0b03a62
commit e08e15a676
1 changed files with 2 additions and 1 deletions
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kitty/vt-parser.c
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@@ -15,6 +15,7 @@
#include "state.h" #include "state.h"
#include "modes.h" #include "modes.h"
#include "simd-string.h" #include "simd-string.h"
#include <stdalign.h>
#define BUF_SZ (1024u*1024u) #define BUF_SZ (1024u*1024u)
// The extra bytes are so loads of large integers such as for AVX 512 dont read past the end of the buffer // The extra bytes are so loads of large integers such as for AVX 512 dont read past the end of the buffer
@@ -207,7 +208,7 @@ typedef struct PS {
// The buffer // The buffer
struct { size_t consumed, pos, sz; } read; struct { size_t consumed, pos, sz; } read;
struct { size_t offset, sz, pending; } write; struct { size_t offset, sz, pending; } write;
uint8_t buf[BUF_SZ + BUF_EXTRA]; alignas(BUF_EXTRA) uint8_t buf[BUF_SZ + BUF_EXTRA];
} PS; } PS;
static_assert(offsetof(PS, buf) > sizeof(BYTE_LOADER_T), "There must be enough space before the buf[] array for aligned loads"); static_assert(offsetof(PS, buf) > sizeof(BYTE_LOADER_T), "There must be enough space before the buf[] array for aligned loads");