commit fb05246201a2d708fb4f3d5febf47e1fc931fa7e
author Jon Medhurst <tixy@linaro.org> Mon Feb 17 12:18:24 2014 +0000
committer Dan Handley <dan.handley@arm.com> Wed Mar 05 16:21:14 2014 +0000
tree c233476c8c9ff2442d58a5f1d18184fa12c16a99
parent 38aa76a87f6cc3e955fabe181e121fe26a4ecd63

Generate build time and date message at link time.

So it updates each time a bootloader changes, not just when bl*_main.c
files are recompiled.

Fixes ARM-software/tf-issues#33

Change-Id: Ie8e1a7bd7e1913d2e96ac268606284f76af8c5ab
Signed-off-by: Jon Medhurst <tixy@linaro.org>

Makefile

diff --git a/Makefile b/Makefile
index d0b18c9..e1a3501 100644
--- a/Makefile
+++ b/Makefile
@@ -353,8 +353,11 @@
 
 $(ELF) : $(OBJS) $(LINKERFILE)
 	@echo "  LD      $$@"
+	@echo 'const char build_message[] = "Built : "__TIME__", "__DATE__;' | \
+		$$(CC) $$(CFLAGS) -xc - -o $(BUILD_DIR)/build_message.o
 	$$(Q)$$(LD) -o $$@ $$(LDFLAGS) -Map=$(MAPFILE) --script $(LINKERFILE) \
-					--entry=$(BL$(1)_ENTRY_POINT) $(OBJS)
+					--entry=$(BL$(1)_ENTRY_POINT) $(OBJS) \
+					$(BUILD_DIR)/build_message.o
 
 $(DUMP) : $(ELF)
 	@echo "  OD      $$@"