add default linker file for flash

env/common-gcc.mk

@@ -24,10 +24,8 @@ INCLUDES += -I$(ENV_DIR)
 INCLUDES += -I$(PLATFORM_DIR)
 
 LDFLAGS += -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI)
-ifndef NO_DEFAULT_LINK
-LDFLAGS += -T $(LINKER_SCRIPT) -Wl,--no-warn-rwx-segments -Wl,-Map=$(TARGET).map  -nostartfiles 
-endif
 LDFLAGS += -L$(ENV_DIR)
+LD_SCRIPT += -T $(LINKER_SCRIPT) -Wl,--no-warn-rwx-segments -Wl,-Map=$(TARGET).map  -nostartfiles 
 # --specs=nano.specs
 
 ASM_OBJS := $(ASM_SRCS:.S=.o)
@@ -59,7 +57,7 @@ OBJCOPY := $(TOOL_DIR)$(TRIPLET)-objcopy
 
 ifndef NO_DEFAULT_LINK
 $(TARGET).elf: $(LINK_OBJS) $(LINK_DEPS)
-	$(LD) $(LINK_OBJS) $(LDFLAGS) $(LIBWRAP) -o $@
+	$(LD) $(LINK_OBJS) $(LDFLAGS) $(LIBWRAP) $(LD_SCRIPT) -o $@
 	$(OBJDUMP) -d -S $@ > $(TARGET).dis
 endif