tools: strip rumpkernel based tools

Until now, the rumpkernel based tools were installed with all symbols
included. This accounts for about 200MiB used space on 64Bit system.
Stripping the binaries prior to installation brings the space
requirements down to 20MiB.

Fixes #1245.

tool/tool_chain_rump

@@ -18,6 +18,8 @@ help:
 
 .PHONY: build help install
 
+.NOTPARALLEL: install
+
 #
 # Rump tool list
 #
@@ -95,7 +97,7 @@ $(BUILD_DIR)/bin/rump_server: $(CONTRIB_DIR)/.compile.tag $(BUILD_DIR)
 
 build: $(CONTRIB_DIR) $(BUILD_DIR)/bin/rump_server
 
-install: $(CONTRIB_DIR) $(BUILD_DIR)/bin/rump_server
+copy: $(CONTRIB_DIR) $(BUILD_DIR)/bin/rump_server
 	$(ECHO) "$(BRIGHT_COL)installing rump tools to '$(INSTALL_LOCATION)'...$(DEFAULT_COL)"
 	$(VERBOSE)sudo mkdir -p $(INSTALL_LOCATION)/bin >/dev/null 2>&1 || true
 	$(VERBOSE)sudo mkdir -p $(INSTALL_LOCATION)/share/man >/dev/null 2>&1 || true
@@ -103,6 +105,22 @@ install: $(CONTRIB_DIR) $(BUILD_DIR)/bin/rump_server
 	$(VERBOSE)sudo cp -a $(BUILD_DIR)/lib/ $(INSTALL_LOCATION)
 	$(VERBOSE)sudo cp -a $(BUILD_DIR)/share/man/man* $(INSTALL_LOCATION)/share/man
 
+#
+# Since at least the libraries are installed with 444 permission by the
+# NetBSD build framework and it requires some effort we strip the binaries
+# manually by calling strip(1) with root permission prior to copying the
+# binaries.
+#
+
+strip-binaries: $(CONTRIB_DIR) $(BUILD_DIR)/bin/rump_server
+	$(ECHO) "$(BRIGHT_COL)stripping binaries prior to installation...$(DEFAULT_COL)"
+	$(VERBOSE)sudo find $(BUILD_DIR)/bin -type f \
+	                -exec strip --strip-all {} \; > /dev/null 2>&1
+	$(VERBOSE)sudo find $(BUILD_DIR)/lib -type f \
+	                -exec strip --strip-all {} \; > /dev/null 2>&1
+
+install: strip-binaries copy
+
 #
 # Clean rules
 #