From 4be0c3018a2af32207398c08635d634c502af736 Mon Sep 17 00:00:00 2001
From: xinyangli <lixinyang411@gmail.com>
Date: Wed, 11 Dec 2024 14:28:28 +0800
Subject: [PATCH] Makefile: add ADD_IMAGE helper

---
 scripts/helpers/rules.mk | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/scripts/helpers/rules.mk b/scripts/helpers/rules.mk
index ad8e187..7ce4255 100644
--- a/scripts/helpers/rules.mk
+++ b/scripts/helpers/rules.mk
@@ -34,7 +34,7 @@ $$(filter %.S.o, $$($(1)OBJS)): $$(BUILDDIR)/%.S.o: %.S
 endef
 
 # Usage:
-# $(1): Library name
+# $(1): Library build path
 # $(2): Library variable prefix
 # E.g: 
 # $(eval $(call ADD_LIBRARY,am-riscv,AM_))
@@ -46,3 +46,19 @@ $(1): $$($(2)OBJS)
 	@$$(AR) rcs $$@ $$($(2)OBJS)
 endef
 
+# Usage:
+# $(1): Image build path
+# $(2): Image variable prefix
+# E.g: 
+# $(eval $(call ADD_IMAGE,dummy,DUMMY_))
+define ADD_IMAGE
+$(eval $(call COMPILE_RULES,$(2)))
+$(1).elf: $$($(2)OBJS) 
+	@mkdir -p $$(dir $$@)
+	@echo + LD "->" $$(patsubst $$(CURDIR)/%,%,$(1).elf)
+	@$$(LD) $$($(2)_LDFLAGS) -o $$@ --start-group $$($(2)OBJS) --end-group
+$(1).bin: $(1).elf
+	@echo + OBJCOPY "->" $$(patsubst $$(CURDIR)/%,%,$(1))
+	@$$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(1).elf $(1).bin
+endef
+