Move serialdump and tunslip6 to their own subdir

.gitignore

@@ -17,8 +17,8 @@ Makefile.target
 Makefile.*.defines
 tools/doxygen/html
 patches-*
-tools/tunslip6
-tools/serialdump
+tools/serial-io/tunslip6
+tools/serial-io/serialdump
 serialdump-*
 build
 tools/coffee-manager/build/

Makefile.tools

@@ -3,13 +3,15 @@
 # recursively invoke the respective build under tools/.
 
 TOOLS_DIR = $(CONTIKI)/tools
-TOOL_DEPS = $(TOOLS_DIR)/tools-utils.c $(TOOLS_DIR)/tools-utils.h
+SERIAL_IO_TOOL_DIR = $(TOOLS_DIR)/serial-io
 
-TUNSLIP6 = $(TOOLS_DIR)/tunslip6
-SERIAL_DUMP_BIN = $(TOOLS_DIR)/serialdump
+SERIAL_IO_TOOL_DEPS = $(addprefix $(SERIAL_IO_TOOL_DIR)/, tools-utils.c tools-utils.h)
 
-$(SERIAL_DUMP_BIN): $(TOOLS_DIR)/serialdump.c $(TOOL_DEPS)
-	make -C $(TOOLS_DIR) serialdump
+TUNSLIP6 = $(SERIAL_IO_TOOL_DIR)/tunslip6
+SERIAL_DUMP_BIN = $(SERIAL_IO_TOOL_DIR)/serialdump
 
-$(TUNSLIP6): $(TOOLS_DIR)/tunslip6.c $(TOOL_DEPS)
-	make -C $(TOOLS_DIR) tunslip6
+$(SERIAL_DUMP_BIN): $(SERIAL_IO_TOOL_DIR)/serialdump.c $(SERIAL_IO_TOOL_DEPS)
+	make -C $(SERIAL_IO_TOOL_DIR) serialdump
+
+$(TUNSLIP6): $(SERIAL_IO_TOOL_DIR)/tunslip6.c $(SERIAL_IO_TOOL_DEPS)
+	make -C $(SERIAL_IO_TOOL_DIR) tunslip6

tools/serial-io/tools-utils.c

@@ -159,4 +159,3 @@ select_baudrate(int baudrate) {
     return 0;
   }
 }
-