init

buildroot/share/PlatformIO/scripts/stm32_bootloader.py

@@ -0,0 +1,40 @@
+#
+# stm32_bootloader.py
+#
+import os,sys,shutil,marlin
+Import("env")
+
+from SCons.Script import DefaultEnvironment
+board = DefaultEnvironment().BoardConfig()
+
+#
+# Copy the firmware.bin file to build.firmware, no encryption
+#
+def noencrypt(source, target, env):
+	firmware = os.path.join(target[0].dir.path, board.get("build.firmware"))
+	shutil.copy(target[0].path, firmware)
+
+#
+# For build.offset define LD_FLASH_OFFSET, used by ldscript.ld
+#
+if 'offset' in board.get("build").keys():
+	LD_FLASH_OFFSET = board.get("build.offset")
+
+	marlin.relocate_vtab(LD_FLASH_OFFSET)
+
+	# 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)
+
+#
+# Only copy the file if there's no encrypt
+#
+board_keys = board.get("build").keys()
+if 'firmware' in board_keys and not 'encrypt' in board_keys:
+	import marlin
+	marlin.add_post_action(noencrypt)