From 2077ff04a25b4393d9b88cd0ee69db3f8eb40276 Mon Sep 17 00:00:00 2001
From: Palmer Dabbelt <palmer@sifive.com>
Date: Thu, 13 Dec 2018 18:45:09 -0800
Subject: Add support for generating coreip hex files via elf2hex

This just calls elf2hex on the compiled elf files, producing a hex file
that can be fed into RTL simulation.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
---
 Makefile | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index ec363a9..7900baa 100644
--- a/Makefile
+++ b/Makefile
@@ -191,17 +191,42 @@ endif
 mee_install: mee
 	$(MAKE) -C $(MEE_SOURCE_PATH) install
 
+#############################################################
+# This Section is for elf2hex Compliation
+#############################################################
+scripts/elf2hex/build/Makefile: scripts/elf2hex/configure
+	@rm -rf $(dir $@)
+	@mkdir -p $(dir $@)
+	cd $(dir $@); \
+		$(abspath $<) \
+		--prefix=$(abspath $(dir $<))/install \
+		--target=$(CROSS_COMPILE)
+
+scripts/elf2hex/install/bin/$(CROSS_COMPILE)-elf2hex: scripts/elf2hex/build/Makefile
+	$(MAKE) -C $(dir $<) install
+	touch -c $@
+
+.PHONY: clean-elf2hex
+clean-elf2hex:
+	rm -rf scripts/elf2hex/build scripts/elf2hex/install
+clean: clean-elf2hex
+
 #############################################################
 # This Section is for Software Compilation
 #############################################################
 PROGRAM_ELF = software/$(PROGRAM)/$(PROGRAM)
+PROGRAM_HEX = software/$(PROGRAM)/$(PROGRAM).hex
 
 ifeq ($(BSP),mee)
 .PHONY: software
 software: $(PROGRAM_ELF)
 
+ifneq ($(COREIP_MEM_WIDTH),)
+software: $(PROGRAM_HEX)
+endif
+
 $(PROGRAM_ELF): \
-		$(shell find $(abspath $(dir $(PROGRAM_ELF))) -type f) \
+		$(addprefix software/$(PROGRAM)/,$(shell git -C software/$(PROGRAM) ls-files)) \
 		$(MEE_BSP_PATH)/install/lib/libmee.a \
 		$(MEE_BSP_PATH)/install/lib/libmee-gloss.a \
 		$(MEE_BSP_PATH)/mee.lds
@@ -214,6 +239,11 @@ $(PROGRAM_ELF): \
 		LDLIBS="-Wl,--start-group -lc -lmee -lmee-gloss -Wl,--end-group"
 	touch -c $@
 
+$(PROGRAM_HEX): \
+		scripts/elf2hex/install/bin/$(CROSS_COMPILE)-elf2hex \
+		$(PROGRAM_ELF)
+	$< --output $@ --input $(PROGRAM_ELF) --bit-width $(COREIP_MEM_WIDTH)
+
 .PHONY: clean-software
 clean-software:
 	$(MAKE) -C $(dir $(PROGRAM_ELF)) clean
-- 
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