From fff5ce053fcfaf0cf3fea815b4c50c000036ff5b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Wed, 24 Jul 2024 20:11:36 +0200
Subject: [PATCH] start: Align the stack on sparc64 just in case.

The kernel does this as required, but we cannot trust dynamic linkers to do it.
---
 lib/std/start.zig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/std/start.zig b/lib/std/start.zig
index 2f0a802e4e..326857d9c0 100644
--- a/lib/std/start.zig
+++ b/lib/std/start.zig
@@ -378,6 +378,9 @@ fn _start() callconv(.Naked) noreturn {
             // (2047 bytes).
             \\ mov %%g0, %%fp
             \\ add %%sp, 2175, %%o0
+            \\ add %%sp, 2047, %%sp
+            \\ and %%sp, -16, %%sp
+            \\ sub %%sp, 2047, %%sp
             \\ ba,a %[posixCallMainAndExit]
             ,
             else => @compileError("unsupported arch"),