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!include/fcntl.h: align open flags with Linux values

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Align the NuttX open(2) flag constants with the Linux asm-generic
values so that the FUSE wire protocol and other cross-platform
interfaces work without conversion.

All code that used '(flags & O_RDONLY)' as a bitmask check (always 0
now that O_RDONLY=0) has been updated to use '(flags & O_ACCMODE)'
comparisons.

The NUTTX_O_* constants in include/nuttx/fs/hostfs.h are updated to
match, and the sim hostfs open flag mapping is fixed.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2026-06-24 17:53:33 +08:00 • committed by Xiang Xiao
parent 9c381340c0
commit 9e141acab3
75 changed files with 239 additions and 213 deletions
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20
include/sys/mount.h
View file

@ -40,16 +40,16 @@
/* Mount flags */
#define MS_RDONLY O_RDONLY /* Mount file system read-only */
#define MS_SYNCHRONOUS O_SYNC /* Writes are synced at once */
#define MS_NOSYMFOLLOW O_NOFOLLOW /* Do not follow symlinks */
#define MS_NOATIME O_NOATIME /* Do not update access times. */
#define MS_NOSUID O_RESERVE14 /* Ignore suid and sgid bits */
#define MS_NODEV O_RESERVE15 /* Disallow access to device special files */
#define MS_DIRSYNC O_RESERVE16 /* Directory modifications are synchronous */
#define MS_REMOUNT O_RESERVE17 /* Alter flags of a mounted FS */
#define MS_MANDLOCK O_RESERVE19 /* Allow mandatory locks on an FS */
#define MS_NOEXEC O_RESERVE20 /* Disallow program execution */
#define MS_RDONLY 0x0001 /* Mount file system read-only */
#define MS_NOSUID 0x0002 /* Ignore suid and sgid bits */
#define MS_NODEV 0x0004 /* Disallow access to device special files */
#define MS_NOEXEC 0x0008 /* Disallow program execution */
#define MS_SYNCHRONOUS 0x0010 /* Writes are synced at once */
#define MS_REMOUNT 0x0020 /* Alter flags of a mounted FS */
#define MS_MANDLOCK 0x0040 /* Allow mandatory locks on an FS */
#define MS_DIRSYNC 0x0080 /* Directory modifications are synchronous */
#define MS_NOSYMFOLLOW 0x0100 /* Do not follow symlinks */
#define MS_NOATIME 0x0400 /* Do not update access times. */
/* Un-mount flags
*