42 lines
877 B
C
42 lines
877 B
C
#ifndef _LIBC_SYS_MMAN_H
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#define _LIBC_SYS_MMAN_H
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#pragma once
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Anonymous-memory mmap over SYS_ALLOC. SYS_ALLOC returns
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* page-aligned process memory, which is exactly what callers like
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* GCC's page allocator need. File-backed mappings are not
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* supported and fail with ENODEV.
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*/
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#define PROT_NONE 0
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#define PROT_READ 1
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#define PROT_WRITE 2
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#define PROT_EXEC 4
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#define MAP_SHARED 0x01
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#define MAP_PRIVATE 0x02
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#define MAP_FIXED 0x10
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#define MAP_ANONYMOUS 0x20
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#define MAP_ANON MAP_ANONYMOUS
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#define MAP_FAILED ((void *)-1)
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void *mmap(void *addr, size_t length, int prot, int flags, int fd,
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long offset);
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int munmap(void *addr, size_t length);
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int mprotect(void *addr, size_t length, int prot);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBC_SYS_MMAN_H */
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