[PATCH 4/5] tools headers: Remove now unused copies of uapi/{fcntl,openat2}.h and asm/fcntl.h

From: Arnaldo Carvalho de Melo
Date: Fri Mar 15 2024 - 16:54:34 EST

From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

These were used to build perf to provide defines not available in older
distros, but this was back in 2017, nowadays all the distros that are
supported and I have build containers for work using just the system
headers, so ditch them.

Some of these older distros may not have things that are used in 'perf
trace', but then they also don't have libtraceevent packages, so don't
build 'perf trace'.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/include/uapi/asm-generic/fcntl.h | 221 -------------------------
tools/include/uapi/linux/fcntl.h | 123 --------------
tools/include/uapi/linux/openat2.h | 43 -----
tools/perf/check-headers.sh | 2 -
4 files changed, 389 deletions(-)
delete mode 100644 tools/include/uapi/asm-generic/fcntl.h
delete mode 100644 tools/include/uapi/linux/fcntl.h
delete mode 100644 tools/include/uapi/linux/openat2.h

diff --git a/tools/include/uapi/asm-generic/fcntl.h b/tools/include/uapi/asm-generic/fcntl.h
deleted file mode 100644
index 1c7a0f6632c09e33..0000000000000000
--- a/tools/include/uapi/asm-generic/fcntl.h
+++ /dev/null
@@ -1,221 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_GENERIC_FCNTL_H
-#define _ASM_GENERIC_FCNTL_H
-
-#include <linux/types.h>
-
-/*
- * FMODE_EXEC is 0x20
- * FMODE_NONOTIFY is 0x4000000
- * These cannot be used by userspace O_* until internal and external open
- * flags are split.
- * -Eric Paris
- */
-
-/*
- * When introducing new O_* bits, please check its uniqueness in fcntl_init().
- */
-
-#define O_ACCMODE 00000003
-#define O_RDONLY 00000000
-#define O_WRONLY 00000001
-#define O_RDWR 00000002
-#ifndef O_CREAT
-#define O_CREAT 00000100 /* not fcntl */
-#endif
-#ifndef O_EXCL
-#define O_EXCL 00000200 /* not fcntl */
-#endif
-#ifndef O_NOCTTY
-#define O_NOCTTY 00000400 /* not fcntl */
-#endif
-#ifndef O_TRUNC
-#define O_TRUNC 00001000 /* not fcntl */
-#endif
-#ifndef O_APPEND
-#define O_APPEND 00002000
-#endif
-#ifndef O_NONBLOCK
-#define O_NONBLOCK 00004000
-#endif
-#ifndef O_DSYNC
-#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
-#endif
-#ifndef FASYNC
-#define FASYNC 00020000 /* fcntl, for BSD compatibility */
-#endif
-#ifndef O_DIRECT
-#define O_DIRECT 00040000 /* direct disk access hint */
-#endif
-#ifndef O_LARGEFILE
-#define O_LARGEFILE 00100000
-#endif
-#ifndef O_DIRECTORY
-#define O_DIRECTORY 00200000 /* must be a directory */
-#endif
-#ifndef O_NOFOLLOW
-#define O_NOFOLLOW 00400000 /* don't follow links */
-#endif
-#ifndef O_NOATIME
-#define O_NOATIME 01000000
-#endif
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 02000000 /* set close_on_exec */
-#endif
-
-/*
- * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
- * the O_SYNC flag. We continue to use the existing numerical value
- * for O_DSYNC semantics now, but using the correct symbolic name for it.
- * This new value is used to request true Posix O_SYNC semantics. It is
- * defined in this strange way to make sure applications compiled against
- * new headers get at least O_DSYNC semantics on older kernels.
- *
- * This has the nice side-effect that we can simply test for O_DSYNC
- * wherever we do not care if O_DSYNC or O_SYNC is used.
- *
- * Note: __O_SYNC must never be used directly.
- */
-#ifndef O_SYNC
-#define __O_SYNC 04000000
-#define O_SYNC (__O_SYNC|O_DSYNC)
-#endif
-
-#ifndef O_PATH
-#define O_PATH 010000000
-#endif
-
-#ifndef __O_TMPFILE
-#define __O_TMPFILE 020000000
-#endif
-
-/* a horrid kludge trying to make sure that this will fail on old kernels */
-#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
-
-#ifndef O_NDELAY
-#define O_NDELAY O_NONBLOCK
-#endif
-
-#define F_DUPFD 0 /* dup */
-#define F_GETFD 1 /* get close_on_exec */
-#define F_SETFD 2 /* set/clear close_on_exec */
-#define F_GETFL 3 /* get file->f_flags */
-#define F_SETFL 4 /* set file->f_flags */
-#ifndef F_GETLK
-#define F_GETLK 5
-#define F_SETLK 6
-#define F_SETLKW 7
-#endif
-#ifndef F_SETOWN
-#define F_SETOWN 8 /* for sockets. */
-#define F_GETOWN 9 /* for sockets. */
-#endif
-#ifndef F_SETSIG
-#define F_SETSIG 10 /* for sockets. */
-#define F_GETSIG 11 /* for sockets. */
-#endif
-
-#if __BITS_PER_LONG == 32 || defined(__KERNEL__)
-#ifndef F_GETLK64
-#define F_GETLK64 12 /* using 'struct flock64' */
-#define F_SETLK64 13
-#define F_SETLKW64 14
-#endif
-#endif /* __BITS_PER_LONG == 32 || defined(__KERNEL__) */
-
-#ifndef F_SETOWN_EX
-#define F_SETOWN_EX 15
-#define F_GETOWN_EX 16
-#endif
-
-#ifndef F_GETOWNER_UIDS
-#define F_GETOWNER_UIDS 17
-#endif
-
-/*
- * Open File Description Locks
- *
- * Usually record locks held by a process are released on *any* close and are
- * not inherited across a fork().
- *
- * These cmd values will set locks that conflict with process-associated
- * record locks, but are "owned" by the open file description, not the
- * process. This means that they are inherited across fork() like BSD (flock)
- * locks, and they are only released automatically when the last reference to
- * the open file against which they were acquired is put.
- */
-#define F_OFD_GETLK 36
-#define F_OFD_SETLK 37
-#define F_OFD_SETLKW 38
-
-#define F_OWNER_TID 0
-#define F_OWNER_PID 1
-#define F_OWNER_PGRP 2
-
-struct f_owner_ex {
- int type;
- __kernel_pid_t pid;
-};
-
-/* for F_[GET|SET]FL */
-#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
-
-/* for posix fcntl() and lockf() */
-#ifndef F_RDLCK
-#define F_RDLCK 0
-#define F_WRLCK 1
-#define F_UNLCK 2
-#endif
-
-/* for old implementation of bsd flock () */
-#ifndef F_EXLCK
-#define F_EXLCK 4 /* or 3 */
-#define F_SHLCK 8 /* or 4 */
-#endif
-
-/* operations for bsd flock(), also used by the kernel implementation */
-#define LOCK_SH 1 /* shared lock */
-#define LOCK_EX 2 /* exclusive lock */
-#define LOCK_NB 4 /* or'd with one of the above to prevent
- blocking */
-#define LOCK_UN 8 /* remove lock */
-
-/*
- * LOCK_MAND support has been removed from the kernel. We leave the symbols
- * here to not break legacy builds, but these should not be used in new code.
- */
-#define LOCK_MAND 32 /* This is a mandatory flock ... */
-#define LOCK_READ 64 /* which allows concurrent read operations */
-#define LOCK_WRITE 128 /* which allows concurrent write operations */
-#define LOCK_RW 192 /* which allows concurrent read & write ops */
-
-#define F_LINUX_SPECIFIC_BASE 1024
-
-#ifndef HAVE_ARCH_STRUCT_FLOCK
-struct flock {
- short l_type;
- short l_whence;
- __kernel_off_t l_start;
- __kernel_off_t l_len;
- __kernel_pid_t l_pid;
-#ifdef __ARCH_FLOCK_EXTRA_SYSID
- __ARCH_FLOCK_EXTRA_SYSID
-#endif
-#ifdef __ARCH_FLOCK_PAD
- __ARCH_FLOCK_PAD
-#endif
-};
-
-struct flock64 {
- short l_type;
- short l_whence;
- __kernel_loff_t l_start;
- __kernel_loff_t l_len;
- __kernel_pid_t l_pid;
-#ifdef __ARCH_FLOCK64_PAD
- __ARCH_FLOCK64_PAD
-#endif
-};
-#endif /* HAVE_ARCH_STRUCT_FLOCK */
-
-#endif /* _ASM_GENERIC_FCNTL_H */
diff --git a/tools/include/uapi/linux/fcntl.h b/tools/include/uapi/linux/fcntl.h
deleted file mode 100644
index 282e90aeb163c028..0000000000000000
--- a/tools/include/uapi/linux/fcntl.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI_LINUX_FCNTL_H
-#define _UAPI_LINUX_FCNTL_H
-
-#include <asm/fcntl.h>
-#include <linux/openat2.h>
-
-#define F_SETLEASE (F_LINUX_SPECIFIC_BASE + 0)
-#define F_GETLEASE (F_LINUX_SPECIFIC_BASE + 1)
-
-/*
- * Cancel a blocking posix lock; internal use only until we expose an
- * asynchronous lock api to userspace:
- */
-#define F_CANCELLK (F_LINUX_SPECIFIC_BASE + 5)
-
-/* Create a file descriptor with FD_CLOEXEC set. */
-#define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
-
-/*
- * Request nofications on a directory.
- * See below for events that may be notified.
- */
-#define F_NOTIFY (F_LINUX_SPECIFIC_BASE+2)
-
-/*
- * Set and get of pipe page size array
- */
-#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
-#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
-
-/*
- * Set/Get seals
- */
-#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
-#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
-
-/*
- * Types of seals
- */
-#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
-#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
-#define F_SEAL_GROW 0x0004 /* prevent file from growing */
-#define F_SEAL_WRITE 0x0008 /* prevent writes */
-#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
-#define F_SEAL_EXEC 0x0020 /* prevent chmod modifying exec bits */
-/* (1U << 31) is reserved for signed error codes */
-
-/*
- * Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
- * underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
- * the specific file.
- */
-#define F_GET_RW_HINT (F_LINUX_SPECIFIC_BASE + 11)
-#define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12)
-#define F_GET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 13)
-#define F_SET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 14)
-
-/*
- * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
- * used to clear any hints previously set.
- */
-#define RWH_WRITE_LIFE_NOT_SET 0
-#define RWH_WRITE_LIFE_NONE 1
-#define RWH_WRITE_LIFE_SHORT 2
-#define RWH_WRITE_LIFE_MEDIUM 3
-#define RWH_WRITE_LIFE_LONG 4
-#define RWH_WRITE_LIFE_EXTREME 5
-
-/*
- * The originally introduced spelling is remained from the first
- * versions of the patch set that introduced the feature, see commit
- * v4.13-rc1~212^2~51.
- */
-#define RWF_WRITE_LIFE_NOT_SET RWH_WRITE_LIFE_NOT_SET
-
-/*
- * Types of directory notifications that may be requested.
- */
-#define DN_ACCESS 0x00000001 /* File accessed */
-#define DN_MODIFY 0x00000002 /* File modified */
-#define DN_CREATE 0x00000004 /* File created */
-#define DN_DELETE 0x00000008 /* File removed */
-#define DN_RENAME 0x00000010 /* File renamed */
-#define DN_ATTRIB 0x00000020 /* File changed attibutes */
-#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */
-
-/*
- * The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EACCESS is
- * meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to
- * unlinkat. The two functions do completely different things and therefore,
- * the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to
- * faccessat would be undefined behavior and thus treating it equivalent to
- * AT_EACCESS is valid undefined behavior.
- */
-#define AT_FDCWD -100 /* Special value used to indicate
- openat should use the current
- working directory. */
-#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
-#define AT_EACCESS 0x200 /* Test access permitted for
- effective IDs, not real IDs. */
-#define AT_REMOVEDIR 0x200 /* Remove directory instead of
- unlinking file. */
-#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
-#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
-#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
-
-#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
-#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
-#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
-#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
-
-#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
-
-/* Flags for name_to_handle_at(2). We reuse AT_ flag space to save bits... */
-#define AT_HANDLE_FID AT_REMOVEDIR /* file handle is needed to
- compare object identity and may not
- be usable to open_by_handle_at(2) */
-#if defined(__KERNEL__)
-#define AT_GETATTR_NOSEC 0x80000000
-#endif
-
-#endif /* _UAPI_LINUX_FCNTL_H */
diff --git a/tools/include/uapi/linux/openat2.h b/tools/include/uapi/linux/openat2.h
deleted file mode 100644
index a5feb7604948791c..0000000000000000
--- a/tools/include/uapi/linux/openat2.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI_LINUX_OPENAT2_H
-#define _UAPI_LINUX_OPENAT2_H
-
-#include <linux/types.h>
-
-/*
- * Arguments for how openat2(2) should open the target path. If only @flags and
- * @mode are non-zero, then openat2(2) operates very similarly to openat(2).
- *
- * However, unlike openat(2), unknown or invalid bits in @flags result in
- * -EINVAL rather than being silently ignored. @mode must be zero unless one of
- * {O_CREAT, O_TMPFILE} are set.
- *
- * @flags: O_* flags.
- * @mode: O_CREAT/O_TMPFILE file mode.
- * @resolve: RESOLVE_* flags.
- */
-struct open_how {
- __u64 flags;
- __u64 mode;
- __u64 resolve;
-};
-
-/* how->resolve flags for openat2(2). */
-#define RESOLVE_NO_XDEV 0x01 /* Block mount-point crossings
- (includes bind-mounts). */
-#define RESOLVE_NO_MAGICLINKS 0x02 /* Block traversal through procfs-style
- "magic-links". */
-#define RESOLVE_NO_SYMLINKS 0x04 /* Block traversal through all symlinks
- (implies OEXT_NO_MAGICLINKS) */
-#define RESOLVE_BENEATH 0x08 /* Block "lexical" trickery like
- "..", symlinks, and absolute
- paths which escape the dirfd. */
-#define RESOLVE_IN_ROOT 0x10 /* Make all jumps to "/" and ".."
- be scoped inside the dirfd
- (similar to chroot(2)). */
-#define RESOLVE_CACHED 0x20 /* Only complete if resolution can be
- completed through cached lookup. May
- return -EAGAIN if that's not
- possible. */
-
-#endif /* _UAPI_LINUX_OPENAT2_H */
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 03d00110a48fcb9a..4ea674df11f8afd5 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -10,12 +10,10 @@ FILES=(
"include/uapi/drm/drm.h"
"include/uapi/drm/i915_drm.h"
"include/uapi/linux/fadvise.h"
- "include/uapi/linux/fcntl.h"
"include/uapi/linux/fscrypt.h"
"include/uapi/linux/kcmp.h"
"include/uapi/linux/kvm.h"
"include/uapi/linux/in.h"
- "include/uapi/linux/openat2.h"
"include/uapi/linux/perf_event.h"
"include/uapi/linux/sched.h"
"include/uapi/linux/seccomp.h"
--
2.43.2