Maybe this can replace several others

buildroot/share/PlatformIO/ldscripts/custom.ld

@@ -0,0 +1,24 @@
+/**
+ * custom.ld - Linker script using custom environment defines
+ *
+ * LD_MAX_SIZE seems to be defined by the base platform build.
+ *
+ * Provided by offset_and_rename.py :
+ *   LD_MAX_DATA_SIZE <= board_upload.maximum_ram_size
+ *   LD_FLASH_OFFSET  <= board_build.offset -- also used for marlin.relocate_vtab()
+ */
+
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE
+  rom (rx)  : ORIGIN = 0x08000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
+}
+
+/* Provide memory region aliases for common.inc */
+REGION_ALIAS("REGION_TEXT", rom);
+REGION_ALIAS("REGION_DATA", ram);
+REGION_ALIAS("REGION_BSS", ram);
+REGION_ALIAS("REGION_RODATA", rom);
+
+/* Let common.inc handle the real work. */
+INCLUDE common.inc

ini/stm32f1-maple.ini

@@ -368,10 +368,13 @@ build_flags       = ${common_stm32f1.build_flags}
 platform                  = ${common_stm32f1.platform}
 extends                   = common_stm32f1
 platform_packages         = tool-stm32duino
+board_build.ldscript      = custom.ld
 board_build.address       = 0x08005000
+board_build.offset        = 0x5000
 board_upload.maximum_size = 237568
 extra_scripts             = ${common.extra_scripts}
   buildroot/share/PlatformIO/scripts/custom_board.py
+  buildroot/share/PlatformIO/scripts/offset_and_rename.py
 build_flags               = ${common_stm32f1.build_flags}
   -D__STM32F1__=1 -DDEBUG_LEVEL=0 -DSS_TIMER=4 -DSERIAL_USB
 lib_deps                  = USBComposite for [email protected]
@@ -381,17 +384,14 @@ lib_ignore                = Adafruit NeoPixel, SPI, SailfishLCD, SailfishRGB_LED
 platform             = ${ZONESTAR_ZM3E.platform}
 extends              = ZONESTAR_ZM3E
 board                = genericSTM32F103RC
-board_build.ldscript = ZONESTAR_ZM3E4V2.ld
 
 [env:STM32F103VC_ZM3E4_USB]
 platform             = ${ZONESTAR_ZM3E.platform}
 extends              = ZONESTAR_ZM3E
 board                = genericSTM32F103VC
-board_build.ldscript = ZONESTAR_ZM3E4.ld
 
 [env:STM32F103VE_ZM3E4V2_USB]
 platform             = ${ZONESTAR_ZM3E.platform}
 extends              = ZONESTAR_ZM3E
 board                = genericSTM32F103VE
-board_build.ldscript = ZONESTAR_ZM3E4V2.ld
 board_upload.maximum_size = 499712