1 files changed, 25 insertions, 1 deletions
diff --git a/src/internal/syscall/unix/at_libc.go b/src/internal/syscall/unix/at_libc.go
index d47f69db6f..36a9f22b2a 100644
--- a/src/internal/syscall/unix/at_libc.go
+++ b/src/internal/syscall/unix/at_libc.go
@@ -18,6 +18,7 @@ import (
 //go:linkname procMkdirat libc_mkdirat
 //go:linkname procFchmodat libc_fchmodat
 //go:linkname procFchownat libc_fchownat
+//go:linkname procRenameat libc_renameat
 
 var (
 	procFstatat,
@@ -26,7 +27,8 @@ var (
 	procReadlinkat,
 	procMkdirat,
 	procFchmodat,
-	procFchownat uintptr
+	procFchownat,
+	procRenameat uintptr
 )
 
 func Unlinkat(dirfd int, path string, flags int) error {
@@ -160,3 +162,25 @@ func Fchownat(dirfd int, path string, uid, gid int, flags int) error {
 	}
 	return nil
 }
+
+func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) error {
+	oldp, err := syscall.BytePtrFromString(oldpath)
+	if err != nil {
+		return err
+	}
+	newp, err := syscall.BytePtrFromString(newpath)
+	if err != nil {
+		return err
+	}
+	_, _, errno := syscall6(uintptr(unsafe.Pointer(&procRenameat)), 4,
+		uintptr(olddirfd),
+		uintptr(unsafe.Pointer(oldp)),
+		uintptr(newdirfd),
+		uintptr(unsafe.Pointer(newp)),
+		0,
+		0)
+	if errno != 0 {
+		return errno
+	}
+	return nil
+}