Add missing copyright/license header.
diff --git a/src/arm/gentramp.sh b/src/arm/gentramp.sh
index d6a6af4..671a3f6 100755
--- a/src/arm/gentramp.sh
+++ b/src/arm/gentramp.sh
@@ -1,5 +1,31 @@
#!/bin/sh
+# -----------------------------------------------------------------------
+# gentramp.sh - Copyright (c) 2010, Plausible Labs, Inc.
+#
+# ARM Trampoline Page Generator
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# ``Software''), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+# -----------------------------------------------------------------------
+
PROGNAME=$0
# Each trampoline is exactly 3 instructions, or 12 bytes. If any of these values change,