From 49eea79ec20b319ee2aa89bcbfd481111b5caa27 Mon Sep 17 00:00:00 2001
From: Wim de With <wf@dewith.io>
Date: Sun, 19 Oct 2025 18:17:45 +0200
Subject: [PATCH] std.os.linux: add pivot_root syscall

---
 lib/std/os/linux.zig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 15de6580f2fb7ae9afeb359a1976a17b4378086e..10feead2ae94956465b4581109bc8c5cf35c59a2 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -968,6 +968,10 @@ pub fn umount2(special: [*:0]const u8, flags: u32) usize {
     return syscall2(.umount2, @intFromPtr(special), flags);
 }
 
+pub fn pivot_root(new_root: [*:0]const u8, put_old: [*:0]const u8) usize {
+    return syscall2(.pivot_root, @intFromPtr(new_root), @intFromPtr(put_old));
+}
+
 pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: MAP, fd: i32, offset: i64) usize {
     if (@hasField(SYS, "mmap2")) {
         return syscall6(
-- 
2.54.0