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#!/bin/bash -eux
# Copyright 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
me=${0##*/}
TMP="$me.tmp"
# Work in scratch directory
cd "$OUTDIR"
IN=${SCRIPT_DIR}/futility/data/bios_link_mp.bin
BIOS=${TMP}.bios.bin
cp ${IN} ${BIOS}
AREAS="RW_SECTION_A VBLOCK_B BOOT_STUB"
# Extract good blobs first
${FUTILITY} dump_fmap -x ${BIOS} ${AREAS}
# Save the good blobs, make same-size random blobs, create command
CMDS=""
for a in ${AREAS}; do
size=$(stat -c '%s' $a)
mv $a $a.good
dd if=/dev/urandom of=$a.rand bs=$size count=1
CMDS="$CMDS $a:$a.rand"
done
# Poke the new blobs in
${FUTILITY} load_fmap ${BIOS} ${CMDS}
# Pull them back out and see if they match
${FUTILITY} dump_fmap -x ${BIOS} ${AREAS}
for a in ${AREAS}; do
cmp $a $a.rand
done
# cleanup
rm -f ${TMP}* ${AREAS} *.rand *.good
exit 0
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