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MarlinFirmware/buildroot/share/PlatformIO/scripts/offset_and_rename.py

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2021-02-28 04:38:57 +00:00
#
# offset_and_rename.py
2021-02-28 04:38:57 +00:00
#
# - If 'build.offset' is provided, either by JSON or by the environment...
# - Set linker flag LD_FLASH_OFFSET and relocate the VTAB based on 'build.offset'.
# - Set linker flag LD_MAX_DATA_SIZE based on 'build.maximum_ram_size'.
# - Define STM32_FLASH_SIZE from 'upload.maximum_size' for use by Flash-based EEPROM emulation.
#
# - For 'board_build.rename' add a post-action to rename the firmware file.
#
import pioutil
if pioutil.is_pio_build():
import os,sys,marlin
Import("env")
from SCons.Script import DefaultEnvironment
board = DefaultEnvironment().BoardConfig()
board_keys = board.get("build").keys()
#
# For build.offset define LD_FLASH_OFFSET, used by ldscript.ld
#
if 'offset' in board_keys:
LD_FLASH_OFFSET = board.get("build.offset")
marlin.relocate_vtab(LD_FLASH_OFFSET)
# Flash size
maximum_flash_size = int(board.get("upload.maximum_size") / 1024)
marlin.replace_define('STM32_FLASH_SIZE', maximum_flash_size)
# Get upload.maximum_ram_size (defined by /buildroot/share/PlatformIO/boards/VARIOUS.json)
maximum_ram_size = board.get("upload.maximum_ram_size")
for i, flag in enumerate(env["LINKFLAGS"]):
if "-Wl,--defsym=LD_FLASH_OFFSET" in flag:
env["LINKFLAGS"][i] = "-Wl,--defsym=LD_FLASH_OFFSET=" + LD_FLASH_OFFSET
if "-Wl,--defsym=LD_MAX_DATA_SIZE" in flag:
env["LINKFLAGS"][i] = "-Wl,--defsym=LD_MAX_DATA_SIZE=" + str(maximum_ram_size - 40)
#
# For build.encrypt rename and encode the firmware file.
#
if 'encrypt' in board_keys:
# Encrypt ${PROGNAME}.bin and save it with the name given in build.encrypt
def encrypt(source, target, env):
marlin.encrypt_mks(source, target, env, board.get("build.encrypt"))
if board.get("build.encrypt") != "":
marlin.add_post_action(encrypt)
#
# For build.rename simply rename the firmware file.
#
if 'rename' in board_keys:
def rename_target(source, target, env):
firmware = os.path.join(target[0].dir.path, board.get("build.rename"))
os.replace(target[0].path, firmware)
marlin.add_post_action(rename_target)