From 2008c2d4b4a7b4d1373d0b04db8ef775bb4b68ab Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Thu, 23 May 2024 20:11:08 -0600
Subject: mk: add bin2rel hook

---
 mk/bin2rel.mk | 19 +++++++++++++++++++
 mk/top.mk     |  1 +
 2 files changed, 20 insertions(+)
 create mode 100644 mk/bin2rel.mk

diff --git a/mk/bin2rel.mk b/mk/bin2rel.mk
new file mode 100644
index 0000000..a627e54
--- /dev/null
+++ b/mk/bin2rel.mk
@@ -0,0 +1,19 @@
+bin2rel_src = $(call require_core_objs,$(1),bin2rel_src)
+bin2rel_obj = $(call require_core_objs,$(1),bin2rel_obj)
+
+define hooks/bin2rel
+  define obj_rules
+    $$(call bin2rel_obj,$(1)): $$(call bin2rel_src,$(1)) $$(obj_deps)
+		$$(call run,BIN2REL,$$@) \
+			cd $$(dir $$<) && \
+			$$(core_info/$(1)/cross)ld -r -b binary -o $$(src)/$$@.data $$(notdir $$<) && \
+			cd - && \
+			$$(core_info/$(1)/cross)objcopy \
+				--rename-section .data=.rodata,alloc,load,readonly,data,contents \
+				--set-section-alignment .data=16 \
+				$$@.data $$@ && \
+			rm -f $$@.data
+  endef
+
+  $$(eval $$(call add_obj_rules,$(1)))
+endef
diff --git a/mk/top.mk b/mk/top.mk
index 9f67ff6..e9d0181 100644
--- a/mk/top.mk
+++ b/mk/top.mk
@@ -26,6 +26,7 @@ endif
 $(foreach flag,$(subst $(comma),$(space),$(enable)),$(eval override enable_$(flag) := 1))
 $(foreach flag,$(subst $(comma),$(space),$(disable)),$(eval override enable_$(flag) :=))
 
+include mk/bin2rel.mk
 include mk/build.mk
 include mk/cc.mk
 include mk/cocotb.mk
-- 
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