diff --git a/.travis.yml b/.travis.yml
index bb1d859cd..8f10bb546 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -70,6 +70,47 @@ matrix:
             - gcc-5
             - gcc-5-multilib
       env: OPTS="--jerry-tests --jerry-test-suite --skip-list=parser-oom.js --buildoptions=--compile-flag=-fsanitize=undefined,--compile-flag=-m32,--compile-flag=-fno-omit-frame-pointer,--compile-flag=-fno-common,--debug,--jerry-libc=off,--static-link=off,--system-allocator=on,--linker-flag=-fuse-ld=gold" UBSAN_OPTIONS=print_stacktrace=1 TIMEOUT=600
+
+    - env: JOBNAME="ESP8266 Build Test"
+      cache: ccache
+      install: make -f ./targets/esp8266/Makefile.travis install
+      script: make -f ./targets/esp8266/Makefile.travis script
+    - env: JOBNAME="Mbed/K64F Build Test"
+      addons:
+        apt:
+          sources:
+            - sourceline: ppa:team-gcc-arm-embedded/ppa
+          packages:
+            - gcc-arm-embedded
+      install: make -f ./targets/mbed/Makefile.travis install
+      script: make -f ./targets/mbed/Makefile.travis script
+    - env: JOBNAME="Mbed OS 5/K64F Build Test"
+      addons:
+        apt:
+          sources:
+            - sourceline: ppa:team-gcc-arm-embedded/ppa
+          packages:
+            - gcc-arm-embedded
+      install: make -f ./targets/mbedos5/Makefile.travis install
+      script: make -f ./targets/mbedos5/Makefile.travis script
+    - env: JOBNAME="NuttX/STM32F4 Build Test"
+      install: make -f targets/nuttx-stm32f4/Makefile.travis install
+      script: make -f targets/nuttx-stm32f4/Makefile.travis script
+    - env: JOBNAME="RIOT/STM32F4 Build Test"
+      install: make -f ./targets/riot-stm32f4/Makefile.travis install
+      script: make -f ./targets/riot-stm32f4/Makefile.travis script
+    - env: JOBNAME="Tizen RT/Artik053 Build Test"
+      addons:
+        apt:
+          sources:
+            - sourceline: ppa:team-gcc-arm-embedded/ppa
+          packages:
+            - gcc-arm-embedded
+      install: make -f ./targets/tizenrt-artik053/Makefile.travis install
+      script: make -f ./targets/tizenrt-artik053/Makefile.travis script
+    - env: JOBNAME="Zephyr/Arduino 101 Build Test"
+      install: make -f ./targets/zephyr/Makefile.travis install
+      script: make -f ./targets/zephyr/Makefile.travis script
   allow_failures:
     - env: OPTS="--check-pylint"
   fast_finish: true
diff --git a/targets/esp8266/Makefile.travis b/targets/esp8266/Makefile.travis
new file mode 100644
index 000000000..da5b61cad
--- /dev/null
+++ b/targets/esp8266/Makefile.travis
@@ -0,0 +1,51 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the ESP8266 JerryScript target.
+
+# Install tools via apt.
+install-apt-get-deps:
+	sudo apt-get install -q -y gperf texinfo wget
+
+# Fetch and build crosstool-NG with support for Xtensa.
+install-xtensa-kx106-gcc:
+	git clone https://github.com/jcmvbkbc/crosstool-NG.git ../crosstool-NG -b lx106-g++-1.21.0
+	cd ../crosstool-NG && ./bootstrap
+	cd ../crosstool-NG && ./configure --enable-local
+	$(MAKE) -C ../crosstool-NG --no-print-directory -Rr # HACK: without the command line arguments, make bails out with recursion error
+	cd ../crosstool-NG && ./ct-ng xtensa-lx106-elf
+	cd ../crosstool-NG && ./ct-ng build
+
+# Fetch Espressif SDK and Xtensa libraries.
+install-espressif-sdk:
+	git clone https://github.com/espressif/ESP8266_RTOS_SDK.git ../ESP8266_SDK
+	cd ../ESP8266_SDK && git checkout 2fab9e23d779cdd6e5900b8ba2b588e30d9b08c4
+	wget https://github.com/esp8266/esp8266-wiki/raw/master/libs/libhal.a -O ../ESP8266_SDK/lib/libhal.a
+
+# Perform all the necessary (JerryScript-independent) installation steps.
+install: install-apt-get-deps install-xtensa-kx106-gcc install-espressif-sdk
+
+
+## Targets for building ESP8266 with JerryScript.
+
+# Build the firmware (ESP8266 with JerryScript).
+script:
+	PATH=$(CURDIR)/../crosstool-NG/builds/xtensa-lx106-elf/bin:$$PATH $(MAKE) -f ./targets/esp8266/Makefile.esp8266 BIN_PATH=build/obj-esp8266 SDK_PATH=$(CURDIR)/../ESP8266_SDK
diff --git a/targets/esp8266/include/jerry_run.h b/targets/esp8266/include/jerry_run.h
index 51a6e987e..36abb7f21 100644
--- a/targets/esp8266/include/jerry_run.h
+++ b/targets/esp8266/include/jerry_run.h
@@ -16,6 +16,8 @@
 #ifndef __JERRY_RUN_H__
 #define __JERRY_RUN_H__
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/targets/mbed/Makefile.travis b/targets/mbed/Makefile.travis
new file mode 100644
index 000000000..43d96ad9b
--- /dev/null
+++ b/targets/mbed/Makefile.travis
@@ -0,0 +1,40 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the Mbed JerryScript target.
+
+# Install tools via apt.
+install-apt-get-deps:
+	sudo apt-get install -q -y ninja-build libffi-dev libssl-dev
+
+# Install yotta
+install-yotta:
+	pip install --user yotta
+
+# Perform all the necessary (JerryScript-independent) installation steps.
+install: install-apt-get-deps install-yotta
+
+
+## Targets for building Mbed with JerryScript.
+
+# Build the firmware (Mbed with JerryScript).
+script:
+	$(MAKE) -f targets/mbed/Makefile.mbed board=k64f
diff --git a/targets/mbedos5/Makefile.travis b/targets/mbedos5/Makefile.travis
new file mode 100644
index 000000000..a0ef7d28c
--- /dev/null
+++ b/targets/mbedos5/Makefile.travis
@@ -0,0 +1,39 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the Mbed OS 5 JerryScript target.
+
+# Deploy Mbed and install Mbed Python dependencies.
+install:
+	pip install --user mbed-cli
+	cd targets/mbedos5 && mbed deploy
+	pip install --user -r targets/mbedos5/mbed-os/requirements.txt
+
+
+## Targets for building Mbed OS 5 with JerryScript.
+
+# Build the firmware (Mbed OS 5 with JerryScript).
+script:
+	pip install --user -r targets/mbedos5/tools/requirements.txt
+	# HACK: `EXTRA_SRC[_MOD]` are abused to pass `--library` to `mbed compile` in the `all` make target that builds an app
+	# HACK: this is needed because the Mbed OS 5 target code does not contain any `main` function, so the `all` make target does not link
+	# HACK: but the `library` make target does not build either because the launcher sources require `jerry-targetjs.h` that are explicitly not generated for libraries
+	$(MAKE) -C targets/mbedos5 BOARD=K64F EXTRA_SRC=dummy EXTRA_SRC_MOD=--library
diff --git a/targets/nuttx-stm32f4/Makefile.travis b/targets/nuttx-stm32f4/Makefile.travis
new file mode 100644
index 000000000..dd13862fb
--- /dev/null
+++ b/targets/nuttx-stm32f4/Makefile.travis
@@ -0,0 +1,63 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the NuttX JerryScript target.
+
+# Install cross-compiler and tools via apt.
+install-apt-get-deps:
+	sudo apt-get install -q -y gcc-arm-none-eabi gperf
+
+# Fetch and build kconfig-frontends (kconfig-conf) from nuttx/tools.
+LOCAL_INSTALL:=$(CURDIR)/../local/
+
+install-kconfig:
+	git clone https://bitbucket.org/nuttx/tools.git ../tools
+	mkdir -p $(LOCAL_INSTALL)
+	cd ../tools/kconfig-frontends && ./configure --disable-mconf --disable-nconf --disable-gconf --disable-qconf --disable-utils --disable-shared --enable-static --prefix=$(LOCAL_INSTALL)
+	$(MAKE) -C ../tools/kconfig-frontends
+	$(MAKE) -C ../tools/kconfig-frontends install
+
+# Fetch nuttx/{apps,nuttx} repositories.
+install-clone-nuttx:
+	git clone https://bitbucket.org/nuttx/apps.git ../apps -b nuttx-7.22
+	git clone https://bitbucket.org/nuttx/nuttx.git ../nuttx -b nuttx-7.22
+
+# Perform all the necessary (JerryScript-independent) installation steps.
+install: install-apt-get-deps install-kconfig install-clone-nuttx
+
+
+## Targets for building NuttX with JerryScript.
+
+# Link in the NuttX JerryScript target directory under the NuttX apps tree.
+script-add-jerryscript-app:
+	ln -s ../../jerryscript/targets/nuttx-stm32f4 ../apps/interpreters/jerryscript
+
+# Configure USB shell.
+script-configure-usbnsh:
+	cd ../nuttx/tools && PATH=$(LOCAL_INSTALL)/bin:$$PATH ./configure.sh stm32f4discovery/usbnsh
+
+# Configure and build the firmware (NuttX with JerryScript).
+script: script-add-jerryscript-app script-configure-usbnsh
+	echo 'CONFIG_HOST_LINUX=y' >> ../nuttx/.config
+	echo 'CONFIG_ARCH_FPU=y' >> ../nuttx/.config
+	echo 'CONFIG_JERRYSCRIPT=y'>> ../nuttx/.config
+	PATH=$(LOCAL_INSTALL)/bin:$$PATH $(MAKE) -C ../nuttx olddefconfig
+	PATH=$(LOCAL_INSTALL)/bin:$$PATH $(MAKE) -C ../nuttx
diff --git a/targets/riot-stm32f4/Makefile.travis b/targets/riot-stm32f4/Makefile.travis
new file mode 100644
index 000000000..5a7204833
--- /dev/null
+++ b/targets/riot-stm32f4/Makefile.travis
@@ -0,0 +1,40 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the RIOT JerryScript target.
+
+# Install cross-compiler via apt.
+install-apt-get-deps:
+	sudo apt-get install -q -y gcc-arm-none-eabi
+
+# Fetch RIOT OS repository.
+install-clone-riot:
+	git clone git://github.com/RIOT-OS/RIOT.git ../RIOT -b 2017.10
+
+# Perform all the necessary (JerryScript-independent) installation steps.
+install: install-apt-get-deps install-clone-riot
+
+
+## Targets for building RIOT with JerryScript.
+
+# Build the firmware (RIOT with JerryScript).
+script:
+	$(MAKE) -f ./targets/riot-stm32f4/Makefile.riot
diff --git a/targets/tizenrt-artik053/Makefile.travis b/targets/tizenrt-artik053/Makefile.travis
new file mode 100644
index 000000000..7c03342ab
--- /dev/null
+++ b/targets/tizenrt-artik053/Makefile.travis
@@ -0,0 +1,46 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the Tizen RT JerryScript target.
+
+# Fetch Tizen RT repository.
+install:
+	git clone https://github.com/Samsung/TizenRT.git ../TizenRT -b 1.1_Public_Release
+
+
+## Targets for building Tizen RT with JerryScript.
+
+# Link in files from the Tizen RT JerryScript target directory under the Tizen RT tree.
+script-add-jerryscript:
+	cp -R targets/tizenrt-artik053/apps/jerryscript/ ../TizenRT/apps/system/
+	cp -R targets/tizenrt-artik053/configs/jerryscript/ ../TizenRT/build/configs/artik053/
+	cp -R targets/tizenrt-artik053/romfs-1.1.patch ../TizenRT/
+
+# Build the JerryScript library.
+script-libjerry:
+	$(MAKE) -f targets/tizenrt-artik053/Makefile.tizenrt
+
+# Configure and build the firmware (Tizen RT with JerryScript).
+script: script-add-jerryscript script-libjerry
+	cd ../TizenRT/os/tools && ./configure.sh artik053/jerryscript
+	cd ../TizenRT && patch -p1 <romfs-1.1.patch
+	mkdir -p ../TizenRT/build/output/res
+	$(MAKE) -C ../TizenRT/os
diff --git a/targets/tizenrt-artik053/apps/jerryscript/jerry_main.c b/targets/tizenrt-artik053/apps/jerryscript/jerry_main.c
index 21c33bb7c..2e2c55358 100644
--- a/targets/tizenrt-artik053/apps/jerryscript/jerry_main.c
+++ b/targets/tizenrt-artik053/apps/jerryscript/jerry_main.c
@@ -380,7 +380,8 @@ jerry_cmd_main (int argc, char *argv[])
     {
       if (++i < argc)
       {
-        debug_port = str_to_uint (argv[i]);
+        char *endptr;
+        debug_port = (uint16_t) strtol (argv[i], &endptr, 10);
       }
       else
       {
diff --git a/targets/tizenrt-artik053/romfs-1.1.patch b/targets/tizenrt-artik053/romfs-1.1.patch
new file mode 100644
index 000000000..9fb8e3ea9
--- /dev/null
+++ b/targets/tizenrt-artik053/romfs-1.1.patch
@@ -0,0 +1,41 @@
+diff --git a/apps/system/init/init.c b/apps/system/init/init.c
+index 3aaa1860..815a9c11 100644
+--- a/apps/system/init/init.c
++++ b/apps/system/init/init.c
+@@ -139,6 +139,10 @@ int preapp_start(int argc, char *argv[])
+ 	}
+ #endif
+ 
++#ifdef CONFIG_FS_ROMFS
++	mount("/dev/smart4rom9", "/rom", "romfs", 0, NULL);
++#endif
++
+ #if defined(CONFIG_LIB_USRWORK) || defined(CONFIG_TASH)
+ error_out:
+ 	return pid;
+diff --git a/build/configs/artik053/artik053_download.sh b/build/configs/artik053/artik053_download.sh
+index 0fa4b9a3..a3178545 100755
+--- a/build/configs/artik053/artik053_download.sh
++++ b/build/configs/artik053/artik053_download.sh
+@@ -111,6 +111,7 @@ main()
+ 			flash_write sssfw ../../bin/sssfw.bin; 		\
+ 			flash_write wlanfw ../../bin/wlanfw.bin;	\
+ 			flash_write os ../../../../output/bin/tinyara_head.bin;	\
++			flash_write rom ../../../../output/bin/rom.img;	\
+ 			exit' || finish_download 1
+ 			popd
+ 
+diff --git a/build/configs/artik053/tools/openocd/partition_map.cfg b/build/configs/artik053/tools/openocd/partition_map.cfg
+index c3abdeff..8dca6666 100644
+--- a/build/configs/artik053/tools/openocd/partition_map.cfg
++++ b/build/configs/artik053/tools/openocd/partition_map.cfg
+@@ -18,7 +18,8 @@ set partition_list {
+ 	os	{ "OS"			0x040C8000	0x00258000	0 }
+ 	factory	{ "Factory Reset"	0x04320000	0x00180000	0 }
+ 	ota	{ "OTA download"	0x044A0000	0x00180000	0 }
+-	user	{ "USER R/W"		0x04620000	0x0015E000	0 }
++	user	{ "USER R/W"		0x04620000	0x000FA000	0 }
++	rom	{ "ROM FS"		0x0471A000	0x00064000	0 }
+ 	nvram	{ "WiFi NVRAM"		0x0477E000	0x00002000	1 }
+ 	sssrw	{ "SSS R/W Key"		0x04780000	0x00080000	1 }
+ }
diff --git a/targets/zephyr/Makefile.travis b/targets/zephyr/Makefile.travis
new file mode 100644
index 000000000..6685ce1e5
--- /dev/null
+++ b/targets/zephyr/Makefile.travis
@@ -0,0 +1,51 @@
+# Copyright JS Foundation and other contributors, http://js.foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# Default target for running the build test outside the Travis CI environment.
+all:
+	$(MAKE) install
+	$(MAKE) script
+
+
+## Targets for installing build dependencies of the Zephyr JerryScript target.
+
+# Install tools via apt.
+install-apt-get-deps:
+	sudo apt-get install -q -y gperf dfu-util device-tree-compiler python3-ply python3-pip
+
+# Install Zephyr SDK.
+install-zephyr-sdk:
+	wget https://github.com/zephyrproject-rtos/meta-zephyr-sdk/releases/download/0.9.1/zephyr-sdk-0.9.1-setup.run -O ../zephyr-sdk-0.9.1-setup.run
+	sh ../zephyr-sdk-0.9.1-setup.run -- -y -d $(CURDIR)/../zephyr-sdk-0.9.1
+
+# Fetch Zephyr Project repository and install python dependencies.
+install-zephyr: install-apt-get-deps
+	git clone https://github.com/zephyrproject-rtos/zephyr.git ../zephyr -b zephyr-v1.9.1
+	pip3 install --user -r ../zephyr/scripts/requirements.txt
+
+# Perform all the necessary (JerryScript-independent) installation steps.
+install: install-zephyr-sdk install-zephyr
+
+
+## Targets for building Zephyr with JerryScript.
+
+# Build the firmware (Zephyr with JerryScript).
+SHELL=bash
+script:
+	export ZEPHYR_GCC_VARIANT=zephyr && \
+	export ZEPHYR_SDK_INSTALL_DIR=$(CURDIR)/../zephyr-sdk-0.9.1 && \
+	source ../zephyr/zephyr-env.sh && \
+	CC=$(CURDIR)/../zephyr-sdk-0.9.1/sysroots/x86_64-pokysdk-linux/usr/bin/i586-zephyr-elfiamcu/i586-zephyr-elfiamcu-gcc \
+	$(MAKE) -f ./targets/zephyr/Makefile.zephyr BOARD=arduino_101