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Expose all MAP_ constants in <sys/mman.h> unconditionally (bug 29375)

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POSIX reserves the MAP_ prefix for <sys/mman.h>, so there is no need to
conditionalize their definitions on feature test macros.
This commit is contained in:
Andreas Schwab
2022-08-16 15:18:11 +02:00
parent 589eda82bb
commit 954b8f3895
10 changed files with 90 additions and 124 deletions
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22
bits/mman.h
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@@ -37,27 +37,21 @@
/* Flags contain mapping type, sharing type and options. */
/* Mapping type (must choose one and only one of these). */
#ifdef __USE_MISC
# define MAP_FILE 0x0001 /* Mapped from a file or device. */
# define MAP_ANON 0x0002 /* Allocated from anonymous virtual memory. */
# define MAP_TYPE 0x000f /* Mask for type field. */
# define MAP_ANONYMOUS MAP_ANON /* Linux name. */
#endif
#define MAP_FILE 0x0001 /* Mapped from a file or device. */
#define MAP_ANON 0x0002 /* Allocated from anonymous virtual memory. */
#define MAP_TYPE 0x000f /* Mask for type field. */
#define MAP_ANONYMOUS MAP_ANON /* Linux name. */
/* Sharing types (must choose one and only one of these). */
#ifdef __USE_MISC
# define MAP_COPY 0x0020 /* Virtual copy of region at mapping time. */
#endif
#define MAP_COPY 0x0020 /* Virtual copy of region at mapping time. */
#define MAP_SHARED 0x0010 /* Share changes. */
#define MAP_PRIVATE 0x0000 /* Changes private; copy pages on write. */
/* Other flags. */
#define MAP_FIXED 0x0100 /* Map address must be exactly as requested. */
#ifdef __USE_MISC
# define MAP_NOEXTEND 0x0200 /* For MAP_FILE, don't change file size. */
# define MAP_HASSEMPHORE 0x0400 /* Region may contain semaphores. */
# define MAP_INHERIT 0x0800 /* Region is retained after exec. */
#endif
#define MAP_NOEXTEND 0x0200 /* For MAP_FILE, don't change file size. */
#define MAP_HASSEMPHORE 0x0400 /* Region may contain semaphores. */
#define MAP_INHERIT 0x0800 /* Region is retained after exec. */
/* Advice to `madvise'. */
#ifdef __USE_MISC