Hardcode BMP as upload method to save 8kB of flash, GD32 only has 64k...

Author: mean

Platform/Core/Targets/ArduinoFirmwareTargetCreatorStm32.cmake

@@ -54,11 +54,17 @@ function(create_arduino_firmware_target TARGET_NAME BOARD_ID ALL_SRCS ALL_LIBS
 
     # depending on the upload method we use different ld script
     # let's hardcode to bootloader for now 
-    if( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
-        SET(BOOTLOADER_LINK_OPT  "-T${RUNTIME_FILES_PATH}/${${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript} ") # Hack
-    else( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
-        SET(BOOTLOADER_LINK_OPT  "-T${RUNTIME_FILES_PATH}/${${BOARD_ID}.menu.cpu.bootloader20.build.ldscript} ") # Hack
-    endif( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
+    dump_all()
+    # Check for blackMagic
+    IF(ARDUINO_UPLOAD_METHOD MATCHES "BMP")
+            SET(BOOTLOADER_LINK_OPT  "-T${RUNTIME_FILES_PATH}/ld/jtag_c8.ld ") # Hack
+    ELSE()
+        if( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
+            SET(BOOTLOADER_LINK_OPT  "-T${RUNTIME_FILES_PATH}/${${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript} ") # Hack
+        else( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
+            SET(BOOTLOADER_LINK_OPT  "-T${RUNTIME_FILES_PATH}/${${BOARD_ID}.menu.cpu.bootloader20.build.ldscript} ") # Hack
+        endif( DEFINED ${BOARD_ID}.menu.cpu.DFUUploadMethod.build.ldscript  )
+    ENDIF()
 
     SET(BOOTLOADER_LINK_OPT  "${BOOTLOADER_LINK_OPT} -L${RUNTIME_FILES_PATH}/ld") # Hack
     MESSAGE(STATUS "Bootloader : <${BOOTLOADER_LINK_OPT}>")