From 0c7c2e663ad0a0f4eced23a68774e0b0c5b6dc96 Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Sun, 23 Jul 2023 17:58:30 +0000
Subject: [PATCH] common.mk: add binary header rule

---
 common.mk | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/common.mk b/common.mk
index 2c0ba56..55fc10d 100644
--- a/common.mk
+++ b/common.mk
@@ -28,6 +28,17 @@ define BUILD_BINARY_O
 		$< $@
 endef
 
+as_obj_binary = _binary_$(subst .,_,$(subst /,_,$(basename $(1))))
+
+define BUILD_BINARY_H
+	@echo $@
+	@echo '#pragma once' > $@
+	@echo '#include <stdint.h>' >> $@
+	@echo 'extern uint32_t $(call as_obj_binary,$@)_start __asm("$(call as_obj_binary,$@)_start");' >> $@
+	@echo 'extern uint32_t $(call as_obj_binary,$@)_end __asm("$(call as_obj_binary,$@)_end");' >> $@
+	@echo 'extern uint32_t $(call as_obj_binary,$@)_size __asm("$(call as_obj_binary,$@)_size");' >> $@
+endef
+
 %.o: %.s
 	$(AS) $(AARCH) $(AFLAGS) $(DEBUG) $< -o $@