diff options
Diffstat (limited to 'include/wabt/common.h')
| -rw-r--r-- | include/wabt/common.h | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/include/wabt/common.h b/include/wabt/common.h index 12b2eb09..6962f06d 100644 --- a/include/wabt/common.h +++ b/include/wabt/common.h @@ -44,14 +44,18 @@ #define WABT_USE(x) static_cast<void>(x) // 64k -#define WABT_PAGE_SIZE 0x10000 -// # of pages that fit in 32-bit address space -#define WABT_MAX_PAGES32 0x10000 -// # of pages that fit in 64-bit address space -#define WABT_MAX_PAGES64 0x1000000000000 -#define WABT_BYTES_TO_PAGES(x) ((x) >> 16) -#define WABT_ALIGN_UP_TO_PAGE(x) \ - (((x) + WABT_PAGE_SIZE - 1) & ~(WABT_PAGE_SIZE - 1)) +#define WABT_DEFAULT_PAGE_SIZE 0x10000 + +inline uint64_t WABT_BYTES_TO_MIN_PAGES(uint64_t num_bytes, + uint32_t page_size) { + if ((page_size == 0) || + (page_size & (page_size - 1))) { // malformed page sizes + WABT_UNREACHABLE; + return 0; + } + uint64_t num_pages = num_bytes / page_size; + return (page_size * num_pages == num_bytes) ? num_pages : num_pages + 1; +} #define WABT_ENUM_COUNT(name) \ (static_cast<int>(name::Last) - static_cast<int>(name::First) + 1) |