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mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00

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

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

View File

@ -24,24 +24,20 @@
/* Other flags. */
#define __MAP_ANONYMOUS 0x10 /* Don't use a file */
#ifdef __USE_MISC
# define MAP_VARIABLE 0
#endif
#define MAP_VARIABLE 0
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_DENYWRITE 0x0800 /* ETXTBSY */
# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable */
# define MAP_LOCKED 0x2000 /* Pages are locked */
# define MAP_NORESERVE 0x4000 /* Don't check for reservations */
# define MAP_GROWSDOWN 0x8000 /* Stack-like segment */
# define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables */
# define MAP_NONBLOCK 0x20000 /* Do not block on IO */
# define MAP_STACK 0x40000 /* Create for process/thread stacks */
# define MAP_HUGETLB 0x80000 /* Create a huge page mapping */
# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
#define MAP_EXECUTABLE 0x1000 /* Mark it as an executable */
#define MAP_LOCKED 0x2000 /* Pages are locked */
#define MAP_NORESERVE 0x4000 /* Don't check for reservations */
#define MAP_GROWSDOWN 0x8000 /* Stack-like segment */
#define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables */
#define MAP_NONBLOCK 0x20000 /* Do not block on IO */
#define MAP_STACK 0x40000 /* Create for process/thread stacks */
#define MAP_HUGETLB 0x80000 /* Create a huge page mapping */
#define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
underlying mapping. */
#endif
/* Advice to "madvise" */
#ifdef __USE_MISC
@ -50,10 +46,8 @@
#include <bits/mman-linux.h>
#ifdef __USE_MISC
# undef MAP_TYPE
# define MAP_TYPE 0x2b /* Mask for type of mapping */
#endif
#undef MAP_TYPE
#define MAP_TYPE 0x2b /* Mask for type of mapping */
#undef MAP_FIXED
#define MAP_FIXED 0x04 /* Interpret addr exactly */