Git-Mirrors/hardened_malloc
1
0
Fork 0
mirror of https://github.com/GrapheneOS/hardened_malloc.git synced 2025-05-24 00:41:11 -04:00
Code Issues Projects Releases Packages Wiki Activity

calculate slab size class instead of array loop

Browse source
This commit is contained in:
Daniel Micay 2022-01-16 14:05:59 -05:00
parent d8cb2d9f7a
commit 81cf2f27a0
2 changed files with 17 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

8
util.h
View file

@ -35,6 +35,8 @@ typedef uint32_t u32;
typedef uint64_t u64;
typedef unsigned __int128 u128;
#define U64_WIDTH 64
static inline int clz64(u64 x) {
return __builtin_clzll(x);
}
@ -43,6 +45,10 @@ static inline int ffz64(u64 x) {
return __builtin_ffsll(~x);
}
static inline u64 log2u64(u64 x) {
return U64_WIDTH - clz64(x) - 1;
}
static inline size_t align(size_t size, size_t align) {
size_t mask = align - 1;
return (size + mask) & ~mask;
@ -50,8 +56,6 @@ static inline size_t align(size_t size, size_t align) {
COLD noreturn void fatal_error(const char *s);
#define U64_WIDTH 64
#if CONFIG_SEAL_METADATA
#ifdef __GLIBC__