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-rw-r--r--src/kernel/trap/handler.cc4
-rw-r--r--src/kernel/trap/trampoline.S3
-rw-r--r--src/kernel/trap/trap.S3
3 files changed, 10 insertions, 0 deletions
diff --git a/src/kernel/trap/handler.cc b/src/kernel/trap/handler.cc
index 7e4d11e..11af409 100644
--- a/src/kernel/trap/handler.cc
+++ b/src/kernel/trap/handler.cc
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2026 Richard QIn
+ */
#include "kernel/trap.h"
#include "kernel/riscv.h"
#include "kernel/proc.h"
diff --git a/src/kernel/trap/trampoline.S b/src/kernel/trap/trampoline.S
index 478d345..57d6f25 100644
--- a/src/kernel/trap/trampoline.S
+++ b/src/kernel/trap/trampoline.S
@@ -1,3 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2026 Richard Qin
+
.section .text
.globl trampoline
.globl uservec
diff --git a/src/kernel/trap/trap.S b/src/kernel/trap/trap.S
index 573248e..8bce53d 100644
--- a/src/kernel/trap/trap.S
+++ b/src/kernel/trap/trap.S
@@ -1,3 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2026 Richard Qin
+
.section .text
.global kernelvec
.global uservec