[util] Script to convert binary to C arrays

Signed-off-by: Chris Frantz <cfrantz@google.com>

Author: cfrantz

util/sh/scripts/bin2c.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+# Copyright lowRISC contributors (OpenTitan project).
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+function usage() {
+  echo "Convert a binary file to a C array."
+  echo
+  echo "$1 [--input FILE] [--output FILE] [--name C_IDENT]"
+  echo
+  echo "    -i|--input FILE: Input file to convert to C"
+  echo "    -o|--output FILE: Output file name.  Defaults to input name with .h appended"
+  echo "    -n|--name C_IDENT: Name of the array."
+  echo "    -?|-h|--help: This message."
+  echo
+}
+
+DIR="$(dirname "$0")"
+
+FILE=""
+OUTPUT=""
+NAME=""
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    -i|--input)
+      shift
+      FILE="$1"
+      shift
+      ;;
+    -o|--output)
+      shift
+      OUTPUT="$1"
+      shift
+      ;;
+    -n|--name)
+      shift
+      NAME="$1"
+      shift
+      ;;
+    -\?|-h|--help)
+      usage $0
+      exit 1
+      ;;
+    *)
+      echo "Unknown argument: $1"
+      exit 1
+      ;;
+  esac
+done
+
+if [[ -z ${OUTPUT} ]]; then
+  OUTPUT="${FILE}.h"
+fi
+if [[ -z ${NAME} ]]; then
+  base=$(basename ${FILE})
+  NAME=$(echo ${base} | sed -e "s/[^A-Za-z0-9_]/_/g")
+fi
+
+echo -n "" > ${OUTPUT}
+echo "// Copyright lowRISC contributors (OpenTitan project)." >> ${OUTPUT}
+echo "// Licensed under the Apache License, Version 2.0, see LICENSE for details." >> ${OUTPUT}
+echo "// SPDX-License-Identifier: Apache-2.0" >> ${OUTPUT}
+echo "" >> ${OUTPUT}
+echo "// clang-format off" >> ${OUTPUT}
+echo "const unsigned char ${NAME}[] = {" >> ${OUTPUT}
+hexdump -vf "${DIR}/c.hexdump" ${FILE} | sed -e "s/0x  ,/     /g" >> ${OUTPUT}
+echo "};" >> ${OUTPUT}
+echo "// clang-format on" >> ${OUTPUT}

util/sh/scripts/c.hexdump

@@ -0,0 +1,3 @@
+16/1 "0x%02x,"
+" // %08_ax  " "%_p"
+"\n"