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kinetis/check-fcfield: merge hex and elf script

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This commit is contained in:
francisco 2019-05-27 17:38:46 +02:00
parent 8fe12bc82c
commit 963bbe75ba
6 changed files with 61 additions and 64 deletions
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2
boards/common/frdm/Makefile.include
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@ -32,7 +32,7 @@ endif
export OPENOCD_CONFIG ?= $(RIOTBOARD)/common/frdm/dist/openocd-$(CPU_FAMILY).cfg
# Check the flash configuration field before flashing
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield-elf.sh
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield.sh
# setup serial terminal
include $(RIOTMAKE)/tools/serial.inc.mk

2
boards/mulle/Makefile.include
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@ -56,7 +56,7 @@ endif
export OPENOCD_PRE_VERIFY_CMDS += \
-c 'load_image $(RIOTCPU)/$(CPU)/dist/wdog-disable.bin 0x20000000 bin' \
-c 'resume 0x20000000'
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield-elf.sh
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield.sh
FLASHDEPS += $(RIOTCPU)/$(CPU)/dist/wdog-disable.bin

2
boards/pba-d-01-kw2x/Makefile.include
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@ -20,7 +20,7 @@ export OPENOCD_PRE_VERIFY_CMDS += \
-c 'load_image $(RIOTCPU)/$(CPU)/dist/wdog-disable.bin 0x20000000 bin' \
-c 'resume 0x20000000'
export OPENOCD_EXTRA_INIT
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield-elf.sh
export PRE_FLASH_CHECK_SCRIPT = $(RIOTCPU)/$(CPU)/dist/check-fcfield.sh
export DEBUG_ADAPTER ?= dap

24
cpu/kinetis/dist/check-fcfield-elf.sh vendored
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@ -1,24 +0,0 @@
#!/bin/sh
#
# Anti brick check script for Freescale Kinetis MCUs.
#
# This script is supposed to be called from RIOTs
# unified OpenOCD script (dist/tools/openocd/openocd.sh).
#
# @author Jonas Remmert <j.remmert@phytec.de>
# @author Johann Fischer <j.fischer@phytec.de>
ELFFILE=$1
ACTUAL_FCFIELD=$(arm-none-eabi-objdump -j.fcfield -s "${ELFFILE}" | awk '/^ 0400 / {print $2 $3 $4 $5}')
# Allow any FOPT flags configuration (".." in the pattern)
EXPECTED_FCFIELD="^fffffffffffffffffffffffffe..ffff$"
if ! printf '%s' "${ACTUAL_FCFIELD}" | grep -q "${EXPECTED_FCFIELD}" ; then
echo "Danger of bricking the device during flash!"
echo "Flash configuration field of ${ELFFILE}:"
arm-none-eabi-objdump -j.fcfield -s "${ELFFILE}"
echo "Abort flash procedure!"
exit 1
fi
echo "${ELFFILE} is fine."
exit 0

37
cpu/kinetis/dist/check-fcfield-hex.sh vendored
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@ -1,37 +0,0 @@
#!/bin/sh
#
# Flash configuration field check script for Freescale Kinetis MCUs.
#
# This script is supposed to be called from RIOTs
# unified OpenOCD script (dist/tools/openocd/openocd.sh).
#
# Syntax: check-fcfield-hex.sh $HEXFILE
#
# @author Jonas Remmert <j.remmert@phytec.de>
# @author Johann Fischer <j.fischer@phytec.de>
# @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
if [ $# -ne 1 ]; then
echo "Usage: $0 HEXFILE"
echo "Checks the flash configuration field protection bits to avoid flashing a locked image to a Kinetis MCU (protection against accidental bricking)."
exit 2
fi
HEXFILE="$1"
FCFIELD_START='0x400'
FCFIELD_END='0x410'
FCFIELD_AWK_REGEX='^ 0400 '
ACTUAL_FCFIELD=$(arm-none-eabi-objdump --start-address=${FCFIELD_START} --stop-address=${FCFIELD_END} ${HEXFILE} -s | awk -F' ' "/${FCFIELD_AWK_REGEX}/ { print \$2 \$3 \$4 \$5; }")
# Allow any FOPT flags configuration (".." in the pattern)
EXPECTED_FCFIELD="^fffffffffffffffffffffffffe..ffff$"
if ! printf '%s' "${ACTUAL_FCFIELD}" | grep -q "${EXPECTED_FCFIELD}"; then
echo "Danger of bricking the device during flash!"
echo "Flash configuration field of ${HEXFILE}:"
arm-none-eabi-objdump --start-address=${FCFIELD_START} --stop-address=${FCFIELD_END} ${HEXFILE} -s
echo "Abort flash procedure!"
exit 1
fi
echo "${HEXFILE} is not locked."
exit 0

58
cpu/kinetis/dist/check-fcfield.sh vendored Executable file
View File

@ -0,0 +1,58 @@
#!/bin/sh
#
# Flash configuration field check script for Freescale Kinetis MCUs.
#
# This script is supposed to be called from RIOTs
# unified OpenOCD script (dist/tools/openocd/openocd.sh).
#
# Syntax: check-fcfield.sh $FLASHFILE
#
# @author Jonas Remmert <j.remmert@phytec.de>
# @author Johann Fischer <j.fischer@phytec.de>
# @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
# @author Francisco Molina <francisco.molina@inria.fr>
# Elf or Hex file to flash
FLASHFILE="$1"
# FCFIELD goes from 0x400-0x40f
FCFIELD_START='0x400'
FCFIELD_END='0x410'
FCFIELD_AWK_REGEX='^ 0400 '
# The following fcfield places the flash in a unsecure state which is the default
# FCF code for Freescale Kinetis MCUs, see /cpu/kinetis/fcfield.c.
EXPECTED_FCFIELD="^fffffffffffffffffffffffffe..ffff$"
get_fc_field()
{
if [ ${1##*.} = elf ]; then
arm-none-eabi-objdump -j.fcfield -s "${1}"
elif [ ${1##*.} = hex ]; then
arm-none-eabi-objdump --start-address=${FCFIELD_START} --stop-address=${FCFIELD_END} ${1} -s
else
echo "Unkown file extension: ${1##*.}"
exit 1
fi
}
filter_fc_field()
{
get_fc_field "${1}" | awk -F' ' "/${2}/ { print \$2 \$3 \$4 \$5; }"
}
if [ $# -ne 1 ]; then
echo "Usage: $0 FLASHFILE"
echo "Checks the flash configuration field protection bits to avoid flashing a locked image to a Kinetis MCU (protection against accidental bricking)."
exit 2
fi
if ! filter_fc_field ${FLASHFILE} ${FCFIELD_AWK_REGEX} | grep -q "${EXPECTED_FCFIELD}"; then
echo "Danger of bricking the device during flash!"
echo "Flash configuration field of ${FLASHFILE}:"
get_fc_field ${FLASHFILE}
echo "Abort flash procedure!"
exit 1
fi
echo "${FLASHFILE} is not locked."
exit 0