add support for Blackfin symbol prefixes to examples

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Makefile

@@ -312,7 +312,7 @@ $(obj)u-boot.dis:	$(obj)u-boot
 		$(OBJDUMP) -d $< > $@
 
 $(obj)u-boot:		depend $(SUBDIRS) $(OBJS) $(LIBS) $(LDSCRIPT)
-		UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) |sed  -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
+		UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) |sed  -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
 		cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \
 			--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 			-Map u-boot.map -o u-boot

blackfin_config.mk

@@ -23,3 +23,5 @@
 
 PLATFORM_RELFLAGS += -ffixed-P5
 PLATFORM_CPPFLAGS += -DCONFIG_BLACKFIN
+
+SYM_PREFIX = _

examples/Makefile

@@ -162,7 +162,7 @@ $(LIB):	$(obj).depend $(LIBOBJS)
 $(ELF):
 $(obj)%:	$(obj)%.o $(LIB)
 		$(LD) -g $(EX_LDFLAGS) -Ttext $(LOAD_ADDR) \
-			-o $@ -e $(notdir $(<:.o=)) $< $(LIB) \
+			-o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
 			-L$(gcclibdir) -lgcc
 
 $(SREC):