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The C and C++ Include Header Files

cat -n /usr/include/asm-generic/mman-common.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	#ifndef __ASM_GENERIC_MMAN_COMMON_H
     3	#define __ASM_GENERIC_MMAN_COMMON_H
     4	
     5	/*
     6	 Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd.
     7	 Based on: asm-xxx/mman.h
     8	*/
     9	
    10	#define PROT_READ	0x1		/* page can be read */
    11	#define PROT_WRITE	0x2		/* page can be written */
    12	#define PROT_EXEC	0x4		/* page can be executed */
    13	#define PROT_SEM	0x8		/* page may be used for atomic ops */
    14	/*			0x10		   reserved for arch-specific use */
    15	/*			0x20		   reserved for arch-specific use */
    16	#define PROT_NONE	0x0		/* page can not be accessed */
    17	#define PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
    18	#define PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */
    19	
    20	/* 0x01 - 0x03 are defined in linux/mman.h */
    21	#define MAP_TYPE	0x0f		/* Mask for type of mapping */
    22	#define MAP_FIXED	0x10		/* Interpret addr exactly */
    23	#define MAP_ANONYMOUS	0x20		/* don't use a file */
    24	
    25	/* 0x0100 - 0x4000 flags are defined in asm-generic/mman.h */
    26	#define MAP_POPULATE		0x008000	/* populate (prefault) pagetables */
    27	#define MAP_NONBLOCK		0x010000	/* do not block on IO */
    28	#define MAP_STACK		0x020000	/* give out an address that is best suited for process/thread stacks */
    29	#define MAP_HUGETLB		0x040000	/* create a huge page mapping */
    30	#define MAP_SYNC		0x080000 /* perform synchronous page faults for the mapping */
    31	#define MAP_FIXED_NOREPLACE	0x100000	/* MAP_FIXED which doesn't unmap underlying mapping */
    32	
    33	#define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
    34						 * uninitialized */
    35	
    36	/*
    37	 * Flags for mlock
    38	 */
    39	#define MLOCK_ONFAULT	0x01		/* Lock pages in range after they are faulted in, do not prefault */
    40	
    41	#define MS_ASYNC	1		/* sync memory asynchronously */
    42	#define MS_INVALIDATE	2		/* invalidate the caches */
    43	#define MS_SYNC		4		/* synchronous memory sync */
    44	
    45	#define MADV_NORMAL	0		/* no further special treatment */
    46	#define MADV_RANDOM	1		/* expect random page references */
    47	#define MADV_SEQUENTIAL	2		/* expect sequential page references */
    48	#define MADV_WILLNEED	3		/* will need these pages */
    49	#define MADV_DONTNEED	4		/* don't need these pages */
    50	
    51	/* common parameters: try to keep these consistent across architectures */
    52	#define MADV_FREE	8		/* free pages only if memory pressure */
    53	#define MADV_REMOVE	9		/* remove these pages & resources */
    54	#define MADV_DONTFORK	10		/* don't inherit across fork */
    55	#define MADV_DOFORK	11		/* do inherit across fork */
    56	#define MADV_HWPOISON	100		/* poison a page for testing */
    57	#define MADV_SOFT_OFFLINE 101		/* soft offline page for testing */
    58	
    59	#define MADV_MERGEABLE   12		/* KSM may merge identical pages */
    60	#define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
    61	
    62	#define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
    63	#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
    64	
    65	#define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
    66						   overrides the coredump filter bits */
    67	#define MADV_DODUMP	17		/* Clear the MADV_DONTDUMP flag */
    68	
    69	#define MADV_WIPEONFORK 18		/* Zero memory on fork, child only */
    70	#define MADV_KEEPONFORK 19		/* Undo MADV_WIPEONFORK */
    71	
    72	#define MADV_COLD	20		/* deactivate these pages */
    73	#define MADV_PAGEOUT	21		/* reclaim these pages */
    74	
    75	#define MADV_POPULATE_READ	22	/* populate (prefault) page tables readable */
    76	#define MADV_POPULATE_WRITE	23	/* populate (prefault) page tables writable */
    77	
    78	#define MADV_DONTNEED_LOCKED	24	/* like DONTNEED, but drop locked pages too */
    79	
    80	#define MADV_COLLAPSE	25		/* Synchronous hugepage collapse */
    81	
    82	#define MADV_GUARD_INSTALL 102		/* fatal signal on access to range */
    83	#define MADV_GUARD_REMOVE 103		/* unguard range */
    84	
    85	/* compatibility flags */
    86	#define MAP_FILE	0
    87	
    88	#define PKEY_UNRESTRICTED	0x0
    89	#define PKEY_DISABLE_ACCESS	0x1
    90	#define PKEY_DISABLE_WRITE	0x2
    91	#define PKEY_ACCESS_MASK	(PKEY_DISABLE_ACCESS |\
    92					 PKEY_DISABLE_WRITE)
    93	
    94	#endif /* __ASM_GENERIC_MMAN_COMMON_H */