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| author | Qi Wang <interwq@gwu.edu> | 2019-04-03 00:50:42 (GMT) |
|---|---|---|
| committer | Qi Wang <interwq@gwu.edu> | 2019-04-03 00:50:42 (GMT) |
| commit | b0b3e49a54ec29e32636f4577d9d5a896d67fd20 (patch) | |
| tree | e80fd5feaedd401e7e2c884e73f8c884f51b5a65 /include/jemalloc/internal/quantum.h | |
| parent | 61efbda7098de6fe64c362d309824864308c36d4 (diff) | |
| parent | f7489dc8f1fac233b0cd4e40331de8b738b1f2e2 (diff) | |
| download | jemalloc-5.2.0.zip jemalloc-5.2.0.tar.gz jemalloc-5.2.0.tar.bz2 | |
Merge branch 'dev'5.2.0
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 0000000..821086e --- /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 */ |