syscall: use fchownat(2) in place of lchown(2) for linux/arm64
Fixes #11918
Replace calls to lchown(2) with fchownat(2) for linux/arm64 as the former is not suppored.
This change has also landed on the x/sys repo as CL 12837.
Change-Id: I58d4b144e051e36dd650ec9b7f3a02610ea943e5
Reviewed-on: https://go-review.googlesource.com/12833
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
Reviewed-by: Russ Cox <rsc@golang.org>
diff --git a/src/syscall/syscall_linux_arm64.go b/src/syscall/syscall_linux_arm64.go
index 7ca4164..3d55181 100644
--- a/src/syscall/syscall_linux_arm64.go
+++ b/src/syscall/syscall_linux_arm64.go
@@ -16,7 +16,6 @@
//sysnb Getgid() (gid int)
//sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb Getuid() (uid int)
-//sys Lchown(path string, uid int, gid int) (err error)
//sys Listen(s int, n int) (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
@@ -37,6 +36,10 @@
return Fstatat(_AT_FDCWD, path, stat, 0)
}
+func Lchown(path string, uid int, gid int) (err error) {
+ return Fchownat(_AT_FDCWD, path, uid, gid, _AT_SYMLINK_NOFOLLOW)
+}
+
func Lstat(path string, stat *Stat_t) (err error) {
return Fstatat(_AT_FDCWD, path, stat, _AT_SYMLINK_NOFOLLOW)
}
diff --git a/src/syscall/zsyscall_linux_arm64.go b/src/syscall/zsyscall_linux_arm64.go
index 2ee58cf..041e770 100644
--- a/src/syscall/zsyscall_linux_arm64.go
+++ b/src/syscall/zsyscall_linux_arm64.go
@@ -1295,22 +1295,6 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-func Lchown(path string, uid int, gid int) (err error) {
- var _p0 *byte
- _p0, err = BytePtrFromString(path)
- if err != nil {
- return
- }
- _, _, e1 := Syscall(SYS_LCHOWN, uintptr(unsafe.Pointer(_p0)), uintptr(uid), uintptr(gid))
- use(unsafe.Pointer(_p0))
- if e1 != 0 {
- err = errnoErr(e1)
- }
- return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
func Listen(s int, n int) (err error) {
_, _, e1 := Syscall(SYS_LISTEN, uintptr(s), uintptr(n), 0)
if e1 != 0 {
