55 lines
1.8 KiB
Makefile
55 lines
1.8 KiB
Makefile
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################################################################################
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##
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## Copyright 2014 Google Inc.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; version 2 of the License.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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################################################################################
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CC = $(GCC_PREFIX)gcc
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NM = $(GCC_PREFIX)nm
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OBJCOPY = $(GCC_PREFIX)objcopy
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OPENSSL = openssl
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DD = dd
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CP = cp
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MV = mv
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RM = rm
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SIGKEY = 00000000000000000000000000000000
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.PHONY: all
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all: tegra_lp0_resume.fw
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tegra_lp0_resume.elf: tegra_lp0_resume.ld tegra_lp0_resume.c
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$(CC) -marm -march=armv4t -mno-unaligned-access -nostdlib -static \
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-Os -fpie -Wl,--build-id=none -ggdb3 -T tegra_lp0_resume.ld \
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-o $@ $(filter %.c,$+)
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tegra_lp0_resume.fw: tegra_lp0_resume.elf
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@# Get rid of any files we're about to create.
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$(RM) -f $@.nosig $@.sig $@.tosig
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@# Convert the ELF image into a binary image.
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$(OBJCOPY) -O binary $< $@.nosig
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@# Extract the part of the binary which needs to be signed.
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$(DD) bs=1 skip=544 if=$@.nosig of=$@.tosig
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@# Calculate a signature for that part.
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$(OPENSSL) dgst -mac cmac -macopt cipher:aes-128-cbc \
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-macopt hexkey:$(SIGKEY) -md5 -binary \
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$@.tosig > $@.sig
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@# Inject the signature into the binary image's header.
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$(DD) conv=notrunc bs=1 seek=272 count=16 if=$@.sig of=$@.nosig
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@# Copy the signed binary to the target file name.
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$(MV) $@.nosig $@
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clean:
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$(RM) -f tegra_lp0_resume.fw tegra_lp0_resume.fw.sig
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$(RM) -f tegra_lp0_resume.fw.tosig tegra_lp0_resume.elf
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