You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.5 KiB
50 lines
1.5 KiB
#
|
|
# lerdge.py
|
|
# Customizations for Lerdge build environments
|
|
#
|
|
import os,sys
|
|
Import("env")
|
|
|
|
from SCons.Script import DefaultEnvironment
|
|
board = DefaultEnvironment().BoardConfig()
|
|
|
|
custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/lerdge.ld")
|
|
for i, flag in enumerate(env["LINKFLAGS"]):
|
|
if "-Wl,-T" in flag:
|
|
env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
|
|
elif flag == "-T":
|
|
env["LINKFLAGS"][i + 1] = custom_ld_script
|
|
|
|
def encryptByte(byte):
|
|
byte = 0xFF & ((byte << 6) | (byte >> 2))
|
|
i = 0x58 + byte
|
|
j = 0x05 + byte + (i >> 8)
|
|
byte = (0xF8 & i) | (0x07 & j)
|
|
return byte
|
|
|
|
def encrypt_file(input, output_file, file_length):
|
|
input_file = bytearray(input.read())
|
|
for i in range(len(input_file)):
|
|
result = encryptByte(input_file[i])
|
|
input_file[i] = result
|
|
|
|
output_file.write(input_file)
|
|
return
|
|
|
|
# Encrypt ${PROGNAME}.bin and save it as build.firmware
|
|
def encrypt(source, target, env):
|
|
print("Encrypting to:", board.get("build.firmware"))
|
|
firmware = open(target[0].path, "rb")
|
|
result = open(target[0].dir.path + "/" + board.get("build.firmware"), "wb")
|
|
length = os.path.getsize(target[0].path)
|
|
|
|
encrypt_file(firmware, result, length)
|
|
|
|
firmware.close()
|
|
result.close()
|
|
|
|
if 'firmware' in board.get("build").keys():
|
|
env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
|
|
else:
|
|
print("You need to define output file via board_build.firmware = 'filename' parameter")
|
|
exit(1);
|
|
|