$(Q)$(RANLIB) $@
blib : $(BLIB)
+# Command to generate build ID. Must be unique for each $(BIN)/%.tmp,
+# even within the same build run.
+#
+BUILD_ID_CMD := perl -e 'printf "0x%08x", int ( rand ( 0xffffffff ) );'
+
# Build an intermediate object file from the objects required for the
# specified target.
#
-$(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
+$(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
$(QM)$(ECHO) " [LD] $@"
$(Q)$(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
- -Map $(BIN)/$*.tmp.map
+ --defsym _build_id=`$(BUILD_ID_CMD)` -Map $(BIN)/$*.tmp.map
$(Q)$(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
# Keep intermediate object file (useful for debugging)