From 6b6e336e07308fd23f3061b5be11407956b2a460 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Mon, 30 Jun 2025 12:18:35 +0200
Subject: [PATCH] std.Build.Step.CheckObject: Truncate st_other before
 interpreting it

Tools are free to use the upper bits of this field for whatever; thus, tools
that want to interpret the visibility type should truncate to 2 bits.
---
 lib/std/Build/Step/CheckObject.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/Build/Step/CheckObject.zig b/lib/std/Build/Step/CheckObject.zig
index c2ff85c6f1..3b78258d1c 100644
--- a/lib/std/Build/Step/CheckObject.zig
+++ b/lib/std/Build/Step/CheckObject.zig
@@ -2270,7 +2270,7 @@ const ElfDumper = struct {
                     try writer.print(" {s}", .{sym_bind});
                 }
 
-                const sym_vis = @as(elf.STV, @enumFromInt(sym.st_other));
+                const sym_vis = @as(elf.STV, @enumFromInt(@as(u2, @truncate(sym.st_other))));
                 try writer.print(" {s}", .{@tagName(sym_vis)});
 
                 const sym_name = switch (sym.st_type()) {