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