[PATCH] Makefile: Generate Map file for each firmware

[Jun Liang Tan]

Currently, OpenSBI does not generate Map file.
This patch allows OpenSBI generates Map file for each
firmware. This comes in handy in debugging process as
Map file gives detailed information about the symbols
in our program.

Signed-off-by: Jun Liang Tan <junliang.tan at starfivetech.com>
Reviewed-by: Chee Hong Ang <cheehong.ang at starfivetech.com>
---
 Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a26a39b..e46b67a 100644
--- a/Makefile
+++ b/Makefile
@@ -445,7 +445,7 @@ compile_as = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
 	     $(AS) $(ASFLAGS) $(call dynamic_flags,$(1),$(2)) -c $(2) -o $(1)
 compile_elf = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
 	     echo " ELF       $(subst $(build_dir)/,,$(1))"; \
-	     $(CC) $(CFLAGS) $(3) $(ELFFLAGS) -Wl,-T$(2) -o $(1)
+	     $(CC) $(CFLAGS) -Wl,-Map=$(basename $(1)).map $(3) $(ELFFLAGS) -Wl,-T$(2) -o $(1)
 compile_ar = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
 	     echo " AR        $(subst $(build_dir)/,,$(1))"; \
 	     $(AR) $(ARFLAGS) $(1) $(2)
@@ -669,6 +669,8 @@ clean:
 	$(CMD_PREFIX)find $(build_dir) -type f -name "*.bin" -exec rm -rf {} +
 	$(if $(V), @echo " RM        $(build_dir)/*.dtb")
 	$(CMD_PREFIX)find $(build_dir) -type f -name "*.dtb" -exec rm -rf {} +
+	$(if $(V), @echo " RM        $(build_dir)/*.map")
+	$(CMD_PREFIX)find $(build_dir) -type f -name "*.map" -exec rm -rf {} +
 
 # Rule for "make distclean"
 .PHONY: distclean
-- 
2.38.1