diff options
Diffstat (limited to 'erts/emulator/sys/common/erl_mmap.h')
| -rw-r--r-- | erts/emulator/sys/common/erl_mmap.h | 104 |
1 files changed, 59 insertions, 45 deletions
diff --git a/erts/emulator/sys/common/erl_mmap.h b/erts/emulator/sys/common/erl_mmap.h index b3c45ba116..7ac61a82c1 100644 --- a/erts/emulator/sys/common/erl_mmap.h +++ b/erts/emulator/sys/common/erl_mmap.h @@ -26,9 +26,36 @@ #define ERTS_MMAP_SUPERALIGNED_BITS (18) /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */ -#define ERTS_MMAPFLG_OS_ONLY (((Uint32) 1) << 0) -#define ERTS_MMAPFLG_SUPERCARRIER_ONLY (((Uint32) 1) << 1) -#define ERTS_MMAPFLG_SUPERALIGNED (((Uint32) 1) << 2) +#ifndef HAVE_MMAP +# define HAVE_MMAP 0 +#endif +#ifndef HAVE_MREMAP +# define HAVE_MREMAP 0 +#endif +#if HAVE_MMAP +# define ERTS_HAVE_OS_MMAP 1 +# define ERTS_HAVE_GENUINE_OS_MMAP 1 +# if HAVE_MREMAP +# define ERTS_HAVE_OS_MREMAP 1 +# endif +# if defined(MAP_FIXED) && defined(MAP_NORESERVE) +# define ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION 1 +# endif +#endif + +#ifndef HAVE_VIRTUALALLOC +# define HAVE_VIRTUALALLOC 0 +#endif +#if HAVE_VIRTUALALLOC +# define ERTS_HAVE_OS_MMAP 1 +#endif + +#ifdef ERTS_HAVE_GENUINE_OS_MMAP +# define HAVE_ERTS_MMAP 1 +#else +# define HAVE_ERTS_MMAP 0 +#endif + extern UWord erts_page_inv_mask; @@ -60,26 +87,6 @@ typedef struct { #define ERTS_MMAP_INIT_HIPE_EXEC_INITER \ {{NULL, NULL}, {NULL, NULL}, ERTS_HIPE_EXEC_VIRTUAL_AREA_SIZE, 1, (1 << 10), 0} -typedef struct ErtsMemMapper_ ErtsMemMapper; - -void *erts_mmap(ErtsMemMapper*, Uint32 flags, UWord *sizep); -void erts_munmap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord size); -void *erts_mremap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord old_size, UWord *sizep); -int erts_mmap_in_supercarrier(ErtsMemMapper*, void *ptr); -void erts_mmap_init(ErtsMemMapper*, ErtsMMapInit*, int executable); -struct erts_mmap_info_struct -{ - UWord sizes[6]; - UWord segs[6]; - UWord os_used; -}; -Eterm erts_mmap_info(ErtsMemMapper*, int *print_to_p, void *print_to_arg, - Eterm** hpp, Uint* szp, struct erts_mmap_info_struct*); -Eterm erts_mmap_info_options(ErtsMemMapper*, - char *prefix, int *print_to_p, void *print_to_arg, - Uint **hpp, Uint *szp); -struct process; -Eterm erts_mmap_debug_info(ErtsMemMapper*, struct process*); #define ERTS_SUPERALIGNED_SIZE \ (1 << ERTS_MMAP_SUPERALIGNED_BITS) @@ -107,29 +114,34 @@ Eterm erts_mmap_debug_info(ErtsMemMapper*, struct process*); #define ERTS_PAGEALIGNED_SIZE \ (ERTS_INV_PAGEALIGNED_MASK + 1) -#ifndef HAVE_MMAP -# define HAVE_MMAP 0 -#endif -#ifndef HAVE_MREMAP -# define HAVE_MREMAP 0 -#endif -#if HAVE_MMAP -# define ERTS_HAVE_OS_MMAP 1 -# define ERTS_HAVE_GENUINE_OS_MMAP 1 -# if HAVE_MREMAP -# define ERTS_HAVE_OS_MREMAP 1 -# endif -# if defined(MAP_FIXED) && defined(MAP_NORESERVE) -# define ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION 1 -# endif -#endif +struct process; +Eterm erts_mmap_debug_info(struct process*); + +#if HAVE_ERTS_MMAP + +typedef struct ErtsMemMapper_ ErtsMemMapper; + +#define ERTS_MMAPFLG_OS_ONLY (((Uint32) 1) << 0) +#define ERTS_MMAPFLG_SUPERCARRIER_ONLY (((Uint32) 1) << 1) +#define ERTS_MMAPFLG_SUPERALIGNED (((Uint32) 1) << 2) + +void *erts_mmap(ErtsMemMapper*, Uint32 flags, UWord *sizep); +void erts_munmap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord size); +void *erts_mremap(ErtsMemMapper*, Uint32 flags, void *ptr, UWord old_size, UWord *sizep); +int erts_mmap_in_supercarrier(ErtsMemMapper*, void *ptr); +void erts_mmap_init(ErtsMemMapper*, ErtsMMapInit*, int executable); +struct erts_mmap_info_struct +{ + UWord sizes[6]; + UWord segs[6]; + UWord os_used; +}; +Eterm erts_mmap_info(ErtsMemMapper*, int *print_to_p, void *print_to_arg, + Eterm** hpp, Uint* szp, struct erts_mmap_info_struct*); +Eterm erts_mmap_info_options(ErtsMemMapper*, + char *prefix, int *print_to_p, void *print_to_arg, + Uint **hpp, Uint *szp); -#ifndef HAVE_VIRTUALALLOC -# define HAVE_VIRTUALALLOC 0 -#endif -#if HAVE_VIRTUALALLOC -# define ERTS_HAVE_OS_MMAP 1 -#endif #ifdef ERTS_WANT_MEM_MAPPERS # include "erl_alloc_types.h" @@ -154,4 +166,6 @@ void hard_dbg_remove_mseg(void* seg, UWord sz); # define HARD_DBG_REMOVE_MSEG(SEG,SZ) #endif +#endif /* HAVE_ERTS_MMAP */ + #endif /* ERL_MMAP_H__ */ |