GGLinnk/bees
1
0
Fork 0
mirror of https://github.com/Zygo/bees.git synced 2025-06-15 17:26:15 +02:00
Code Packages Activity

openat2: supply the missing definitions for building with old headers and new kernel

Browse Source 
Apparently Ubuntu 20 has upgraded to kernel 5.15, but still builds things
with 5.4 headers.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2025-01-19 21:09:16 -05:00
parent 874832dc58
commit ad11db2ee1
2 changed files with 63 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
include/crucible/openat2.h
View File

@ -1,11 +1,44 @@
#ifndef CRUCIBLE_OPENAT2_H
#define CRUCIBLE_OPENAT2_H
#include <cstdlib>
// Compatibility for building on old libc for new kernel
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
#include <linux/openat2.h>
#include <fcntl.h>
#include <sys/syscall.h>
#include <unistd.h>
#else
#ifndef RESOLVE_NO_XDEV
#define RESOLVE_NO_XDEV 1
// RESOLVE_NO_XDEV was there from the beginning of openat2,
// so if that's missing, so is open_how
struct open_how {
__u64 flags;
__u64 mode;
__u64 resolve;
};
#endif
#ifndef RESOLVE_NO_MAGICLINKS
#define RESOLVE_NO_MAGICLINKS 2
#endif
#ifndef RESOLVE_NO_SYMLINKS
#define RESOLVE_NO_SYMLINKS 4
#endif
#ifndef RESOLVE_BENEATH
#define RESOLVE_BENEATH 8
#endif
#ifndef RESOLVE_IN_ROOT
#define RESOLVE_IN_ROOT 16
#endif
#endif // Linux version >= v5.6
extern "C" {