It should be BSS section not to output data to .hex.

entry.c

@@ -420,7 +420,7 @@ static void none (void)
 #define COMPOSE_STATEMENT(arg0,arg1,arg2)  C_S_SUB (arg0, arg1, arg2)
 
 #if MCU_STM32F0
-__attribute__ ((used,section(".data.startup.0")))
+__attribute__ ((used,section(".bss.startup.0")))
 uint32_t vectors_in_ram[48];
 #endif
 

example-fsm-55/hacker-emblem.ld

@@ -88,7 +88,7 @@ SECTIONS
     {
         . = ALIGN(8);
         __vector_ram_addr__ = .;
-	KEEP(*(.data.startup.*))
+	KEEP(*(.bss.startup.*))
     } > ram
 
     .process_stack :