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| author | Florian Weimer <fweimer@redhat.com> | 2018-07-05 18:59:02 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2018-07-05 19:00:10 +0200 |
| commit | d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7 (patch) | |
| tree | 4c8f50e0ec6b6780eb1eb4dd2b496f0a1b1411d3 /sysdeps/unix/sysv/linux/kernel-features.h | |
| parent | 1002d708232dda9ebff65f6c1409fa067a01b6e0 (diff) | |
| download | glibc-d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7.tar glibc-d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7.tar.gz glibc-d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7.tar.bz2 glibc-d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7.zip | |
Add renameat2 function [BZ #17662]
The implementation falls back to renameat if renameat2 is not available
in the kernel (or in the kernel headers) and the flags argument is zero.
Without kernel support, a non-zero argument returns EINVAL, not ENOSYS.
This mirrors what the kernel does for invalid renameat2 flags.
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index b90ea30195..86fc66574b 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -97,6 +97,11 @@ implementation based on p{read,write}v and returning an error for non supported flags. */ +/* Support for the renameat2 system call was added in kernel 3.15. */ +#if __LINUX_KERNEL_VERSION >= 0x030F00 +# define __ASSUME_RENAMEAT2 +#endif + /* Support for the execveat syscall was added in 3.19. */ #if __LINUX_KERNEL_VERSION >= 0x031300 # define __ASSUME_EXECVEAT 1 |