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authorFlorian Weimer <fweimer@redhat.com>2018-07-05 18:59:02 +0200
committerFlorian Weimer <fweimer@redhat.com>2018-07-05 19:00:10 +0200
commitd6da5cb6a8e0e8a9ce92b7d951a254cf325248d7 (patch)
tree4c8f50e0ec6b6780eb1eb4dd2b496f0a1b1411d3 /sysdeps/unix/sysv/linux/sh
parent1002d708232dda9ebff65f6c1409fa067a01b6e0 (diff)
downloadglibc-d6da5cb6a8e0e8a9ce92b7d951a254cf325248d7.tar.gz
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/sh')
-rw-r--r--sysdeps/unix/sysv/linux/sh/kernel-features.h5
-rw-r--r--sysdeps/unix/sysv/linux/sh/libc.abilist1
2 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/kernel-features.h b/sysdeps/unix/sysv/linux/sh/kernel-features.h
index b82d032e6b..05b7dcd037 100644
--- a/sysdeps/unix/sysv/linux/sh/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/sh/kernel-features.h
@@ -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
diff --git a/sysdeps/unix/sysv/linux/sh/libc.abilist b/sysdeps/unix/sysv/linux/sh/libc.abilist
index f2f070fbce..8de0d1711a 100644
--- a/sysdeps/unix/sysv/linux/sh/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libc.abilist
@@ -1878,6 +1878,7 @@ GLIBC_2.27 wcstof64 F
GLIBC_2.27 wcstof64_l F
GLIBC_2.28 fcntl F
GLIBC_2.28 fcntl64 F
+GLIBC_2.28 renameat2 F
GLIBC_2.3 __ctype_b_loc F
GLIBC_2.3 __ctype_tolower_loc F
GLIBC_2.3 __ctype_toupper_loc F