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Add renameat2 function [BZ #17662]

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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.
This commit is contained in:
Florian Weimer
2018-07-05 18:59:02 +02:00
parent 1002d70823
commit d6da5cb6a8
45 changed files with 400 additions and 5 deletions
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5
sysdeps/unix/sysv/linux/sh/kernel-features.h
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@ -51,4 +51,9 @@
/* sh only supports ipc syscall. */
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
/* Support for the renameat2 syscall was added in 4.8. */
#if __LINUX_KERNEL_VERSION < 0x040800
# undef __ASSUME_RENAMEAT2
#endif
#endif