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| author | Danny Lin <danny@kdrag0n.dev> | 2021-10-11 20:49:26 -0700 |
|---|---|---|
| committer | alk3pInjection <5e147612@kscope.ink> | 2022-05-08 12:40:50 +0800 |
| commit | e36e52fb6ec54bc47e17e849ca5a3a301eaa6d05 (patch) | |
| tree | 854d309be91bcdd38fe46ea8ad0f906bef39d017 /include/jemalloc/internal/quantum.h | |
| parent | 6d4d27fd2651ed114386b89c2d251b816a849460 (diff) | |
| parent | ea6b3e973b477b8061e0076bb257dbd7f3faa756 (diff) | |
Merge tag '5.2.1' into HEAD
Release
Change-Id: I269b861cb81499b78f13dc2e88827f13ef5a207d
Diffstat (limited to 'include/jemalloc/internal/quantum.h')
| -rw-r--r-- | include/jemalloc/internal/quantum.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/include/jemalloc/internal/quantum.h b/include/jemalloc/internal/quantum.h new file mode 100644 index 00000000..821086e9 --- /dev/null +++ b/include/jemalloc/internal/quantum.h @@ -0,0 +1,77 @@ +#ifndef JEMALLOC_INTERNAL_QUANTUM_H +#define JEMALLOC_INTERNAL_QUANTUM_H + +/* + * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size + * classes). + */ +#ifndef LG_QUANTUM +# if (defined(__i386__) || defined(_M_IX86)) +# define LG_QUANTUM 4 +# endif +# ifdef __ia64__ +# define LG_QUANTUM 4 +# endif +# ifdef __alpha__ +# define LG_QUANTUM 4 +# endif +# if (defined(__sparc64__) || defined(__sparcv9) || defined(__sparc_v9__)) +# define LG_QUANTUM 4 +# endif +# if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64)) +# define LG_QUANTUM 4 +# endif +# ifdef __arm__ +# define LG_QUANTUM 3 +# endif +# ifdef __aarch64__ +# define LG_QUANTUM 4 +# endif +# ifdef __hppa__ +# define LG_QUANTUM 4 +# endif +# ifdef __m68k__ +# define LG_QUANTUM 3 +# endif +# ifdef __mips__ +# define LG_QUANTUM 3 +# endif +# ifdef __nios2__ +# define LG_QUANTUM 3 +# endif +# ifdef __or1k__ +# define LG_QUANTUM 3 +# endif +# ifdef __powerpc__ +# define LG_QUANTUM 4 +# endif +# if defined(__riscv) || defined(__riscv__) +# define LG_QUANTUM 4 +# endif +# ifdef __s390__ +# define LG_QUANTUM 4 +# endif +# if (defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || \ + defined(__SH4_SINGLE_ONLY__)) +# define LG_QUANTUM 4 +# endif +# ifdef __tile__ +# define LG_QUANTUM 4 +# endif +# ifdef __le32__ +# define LG_QUANTUM 4 +# endif +# ifndef LG_QUANTUM +# error "Unknown minimum alignment for architecture; specify via " + "--with-lg-quantum" +# endif +#endif + +#define QUANTUM ((size_t)(1U << LG_QUANTUM)) +#define QUANTUM_MASK (QUANTUM - 1) + +/* Return the smallest quantum multiple that is >= a. */ +#define QUANTUM_CEILING(a) \ + (((a) + QUANTUM_MASK) & ~QUANTUM_MASK) + +#endif /* JEMALLOC_INTERNAL_QUANTUM_H */ |