From ac79ab0b4569975eda83c49e52840a07fddca7c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6nke=20Holz?= <sholz8530@gmail.com>
Date: Sat, 16 Dec 2023 17:22:28 +0100
Subject: [PATCH] Kernel/riscv64: Specify correct alignment for `FPUState`
 struct

The signal handling code (and possibly other code as well) expects this
struct to have an alignment of 16 bytes, as it pushes this struct on the
stack.
---
 Kernel/Arch/riscv64/FPUState.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Kernel/Arch/riscv64/FPUState.h b/Kernel/Arch/riscv64/FPUState.h
index bae39b1733..a33fd4bbe1 100644
--- a/Kernel/Arch/riscv64/FPUState.h
+++ b/Kernel/Arch/riscv64/FPUState.h
@@ -13,7 +13,9 @@ VALIDATE_IS_RISCV64()
 
 namespace Kernel {
 
-struct FPUState {
+// This struct will get pushed on the stack by the signal handling code.
+// Therefore, it has to be aligned to a 16-byte boundary.
+struct [[gnu::aligned(16)]] FPUState {
     u64 f[32];
     u64 fcsr;
 };