3 files changed, 24 insertions, 0 deletions
diff --git a/internal/syscallcompat/sys_darwin.go b/internal/syscallcompat/sys_darwin.go
index 52d4e0f..07eb30a 100644
--- a/internal/syscallcompat/sys_darwin.go
+++ b/internal/syscallcompat/sys_darwin.go
@@ -33,6 +33,11 @@ const (
 	// On Darwin we use O_SYMLINK which allows opening a symlink itself.
 	// On Linux, we only have O_NOFOLLOW.
 	OpenatFlagNofollowSymlink = unix.O_SYMLINK
+
+	// F_OFD_SETLKW only exists on Linux. On Darwin, fall back to F_SETLKW as a
+	// flawed replacement.
+	F_OFD_SETLKW = unix.F_SETLKW
+	F_OFD_SETLK  = unix.F_SETLK
 )
 
 // Unfortunately fsetattrlist does not have a syscall wrapper yet.
diff --git a/internal/syscallcompat/sys_freebsd.go b/internal/syscallcompat/sys_freebsd.go
index d88b1cf..0d28f3e 100644
--- a/internal/syscallcompat/sys_freebsd.go
+++ b/internal/syscallcompat/sys_freebsd.go
@@ -32,6 +32,11 @@ const (
 
 	// For the utimensat syscall on FreeBSD
 	AT_EMPTY_PATH = 0x4000
+
+	// F_OFD_SETLKW only exists on Linux. On Darwin, fall back to F_SETLKW as a
+	// flawed replacement.
+	F_OFD_SETLKW = unix.F_SETLKW
+	F_OFD_SETLK  = unix.F_SETLK
 )
 
 // EnospcPrealloc is supposed to preallocate ciphertext space without
diff --git a/internal/syscallcompat/sys_linux.go b/internal/syscallcompat/sys_linux.go
index a850ba1..ffa5a97 100644
--- a/internal/syscallcompat/sys_linux.go
+++ b/internal/syscallcompat/sys_linux.go
@@ -35,6 +35,11 @@ const (
 
 	// Only defined on Linux
 	ENODATA = unix.ENODATA
+
+	// F_OFD_SETLKW only exists on Linux. On Darwin, fall back to F_SETLKW as a
+	// flawed replacement.
+	F_OFD_SETLKW = unix.F_OFD_SETLKW
+	F_OFD_SETLK  = unix.F_OFD_SETLK
 )
 
 var preallocWarn sync.Once
@@ -75,6 +80,15 @@ func Mknodat(dirfd int, path string, mode uint32, dev int) (err error) {
 	return syscall.Mknodat(dirfd, path, mode, dev)
 }
 
+// Statx wraps the Statx syscall.
+// Retries on EINTR.
+func Statx(dirfd int, path string, flags int, mask int, st *unix.Statx_t) (err error) {
+	err = retryEINTR(func() error {
+		return unix.Statx(dirfd, path, flags, mask, st)
+	})
+	return err
+}
+
 // Dup3 wraps the Dup3 syscall. We want to use Dup3 rather than Dup2 because Dup2
 // is not implemented on arm64.
 func Dup3(oldfd int, newfd int, flags int) (err error) {