Squashed updates: build-run workflow, submodule revisions, platform support, and feature enhancements (#77)

- Refactored build-run workflow for Linux: improved execution flow, artifact handling, and logging
- Updated WAMR and Zephyr submodules to internal and main branches
- Stabilized system initialization, messaging, and platform abstraction
- Enhanced documentation: updated README and MAINTAINERS.md
- Added support for U585 onboard sensors and OCRE container networking
- Fixed native simulation run command and improved input path resolution
- Corrected stack allocation for dynamic threads

Signed-off-by: Krisztian Szilvasi <34309983+kr-t@users.noreply.github.com>

Author: kr-t

.github/workflows/build.yml

@@ -35,6 +35,13 @@ jobs:
         run: |
           west build --pristine -b native_sim ./application -d build -- -DMODULE_EXT_ROOT=$(pwd)/application
       
+      - name: Upload build native_sim artifact
+        if: job.status == 'success'
+        uses: actions/upload-artifact@v4
+        with:
+          name: zephyr-build-native-sim
+          path: build/
+
       - name: Build b_u585i_iot02a
         if: runner.environment == 'self-hosted'
         run: |
@@ -47,6 +54,40 @@ jobs:
           name: firmware
           path: build/zephyr/zephyr.bin
 
+  run-zephyr-native-sim:
+    runs-on: zephyr-xlarge-runner
+    needs: build-zephyr
+    container:
+      image: ghcr.io/zephyrproject-rtos/ci:v0.26-branch
+      options: --user root
+    steps:
+      - name: Download Zephyr build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: zephyr-build-native-sim
+          path: build/
+
+      - name: Run Zephyr binary and check output
+        working-directory: build/zephyr/
+        run: |
+          EXPECTED_LOG="Hello World from Ocre!"
+          echo "Running Zephyr (native_sim)..."
+          chmod +x zephyr.exe
+          stdbuf -oL -eL timeout 20s ./zephyr.exe | tee zephyr_app.log
+          echo "===== Checking for expected log ====="
+          if grep -q "$EXPECTED_LOG" zephyr_app.log; then
+            echo "[OK] Found expected log: $EXPECTED_LOG"
+          else
+            echo "[ERROR] Expected log not found: $EXPECTED_LOG"
+            exit 1
+          fi
+
+      - name: Upload app logs
+        uses: actions/upload-artifact@v4
+        with:
+          name: zephyr-app-log
+          path: build/zephyr/zephyr_app.log
+
   build-linux:
     runs-on: ubuntu-latest
     steps:
@@ -64,6 +105,43 @@ jobs:
         run: |
           cd application
           ./build.sh -t l
+    
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-build
+          path: application/build/
+
+  run-linux:
+    runs-on: ubuntu-latest
+    needs: build-linux
+    steps:
+      - name: Download Linux build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: linux-build
+          path: application/build/
+
+      - name: Run Linux binary and check output
+        working-directory: application/build
+        run: |
+          EXPECTED_LOG="Hello World from Ocre!"
+          chmod +x app
+          echo "Running application..."
+          stdbuf -oL -eL timeout 20s ./app | tee linux_app.log
+          echo "===== Checking for expected log ====="
+          if grep -q "$EXPECTED_LOG" linux_app.log; then
+            echo "[OK] Found expected log: $EXPECTED_LOG"
+          else
+            echo "[ERROR] Expected log not found: $EXPECTED_LOG"
+            exit 1
+          fi
+
+      - name: Upload app logs
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-app-log
+          path: application/build/linux_app.log
 
   flash:
     needs: build-zephyr

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "wasm-micro-runtime"]
 	path = wasm-micro-runtime
-	url = https://github.com/bytecodealliance/wasm-micro-runtime.git
-	branch = dev/zephyr_file_socket
+	url = https://github.com/project-ocre/wasm-micro-runtime.git
+	branch = staging

Kconfig

@@ -212,4 +212,10 @@ config IMU_SENSOR
     help
       Enable support for the custom IMU sensor.
 
+config OCRE_NETWORKING
+    bool "Enable container networking support"
+    default n
+    help
+        Enable networking support for containers.
+        
 endmenu

boards/b_u585i_iot02a.conf

@@ -8,23 +8,28 @@ CONFIG_GPIO=y
 CONFIG_I2C=y
 CONFIG_SPI=y
 
-# ENC28J60 Ethernet driver
-CONFIG_ETH_ENC28J60=y
+# W5500 Ethernet driver
+CONFIG_ETH_W5500=y
 CONFIG_NET_L2_ETHERNET=y
-CONFIG_LSM6DSO=y
 
 # Ocre Sensors support
 CONFIG_SENSOR=y
 CONFIG_OCRE_SENSORS=y
+CONFIG_RNG_SENSOR=y
+
+CONFIG_SENSOR_SHELL=y
+CONFIG_SENSOR_INFO=y
+
+# Onboard sensors
+CONFIG_ISM330DHCX=y
+CONFIG_LPS22HH=y
+CONFIG_HTS221=y
+CONFIG_IIS2MDC=y
+CONFIG_VEML7700=y
 
 # Ocre options
 CONFIG_OCRE_CONTAINER_FILESYSTEM=y
 
-# Specific sensor drivers
-CONFIG_RNG_SENSOR=y
-CONFIG_IMU_SENSOR=y
-CONFIG_LSM6DSO=y
-
 # Ocre GPIO Support
 CONFIG_OCRE_GPIO=y
 CONFIG_OCRE_GPIO_MAX_PORTS=8
@@ -43,3 +48,15 @@ CONFIG_LINKER_LAST_SECTION_ID=y
 
 CONFIG_MM_DRV=y
 CONFIG_MM_DRV_PAGE_SIZE=4096 
+
+# Networking options
+CONFIG_NET_TCP=y
+CONFIG_NET_MAX_CONN=10
+
+# Zephyr Virtual File System (ZVFS) options. Needed for container filesystem and sockets
+CONFIG_ZVFS_OPEN_MAX=15
+CONFIG_ZVFS_EVENTFD_MAX=10
+CONFIG_NET_SOCKETS_POLL_MAX=10
+
+# Enable container networking support
+CONFIG_OCRE_NETWORKING=y

boards/b_u585i_iot02a.overlay

@@ -38,7 +38,7 @@
     devices {
         compatible = "custom,devices";
         status = "okay";
-        device_list = <&rng_device &ism330dhcx>;
+        device_list = <&rng_device &ism330dhcx &lps22hh &hts221 &iis2mdc &veml6030>;
     };
 
     reserved-memory {
@@ -154,34 +154,44 @@
     };
 };
 
+// Add labels for sensors defined in the board .dtsi file, and any other user configuration
+// This is required so we can reference them in the devices block above, which is used by ocre_sensors
 &i2c2 {
-  pinctrl-0 = <&i2c2_scl_ph4 &i2c2_sda_ph5>;
-	pinctrl-names = "default";
-	status = "okay";
-	clock-frequency = <I2C_BITRATE_FAST>;
-
-    ism330dhcx: ism330dhcx@6b {
-		compatible = "st,ism330dhcx";
-		reg = <0x6b>;
-		drdy-gpios =  <&gpioe 11 GPIO_ACTIVE_HIGH>;
-        status = "okay";
+    ism330dhcx: ism330dhcx@6b { 
         label = "imu";
+        status = "okay";
         accel-odr = <4>;    // 104 Hz
         accel-range = <4>;  // ±4 g
         gyro-odr = <4>;     // 104 Hz
         gyro-range = <250>; // ±250 dps
-	};
+    };
+    lps22hh: lps22hh@5d { 
+        label = "pressure";
+        status = "okay";
+    };
+    hts221: hts221@5f { 
+        label = "humidity";
+        status = "okay";
+    };
+    iis2mdc: iis2mdc@1e { 
+        label = "magnetometer";
+        status = "okay";
+    };
+    veml6030: veml6030@10 { 
+        label = "light";
+        status = "okay";
+    };
 };
 
 &spi1 {
-    enc28j60: ethernet@0 {
+    eth0: ethernet@0 {
         status = "okay";
         reg = <0>;
-        compatible = "microchip,enc28j60";
-        int-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>;
-        spi-max-frequency = <10000000>;
+        // W5500 Ethernet Shield
+        compatible = "wiznet,w5500";
+        int-gpios = <&gpiod 15 GPIO_ACTIVE_LOW>;
+        spi-max-frequency = <32000000>;
         local-mac-address = [ 00 80 00 01 02 03 ];
-        full-duplex;
     };
 };
 

boards/enc28j60.conf

@@ -0,0 +1,3 @@
+# ENC28J60 Ethernet driver
+CONFIG_ETH_ENC28J60=y
+CONFIG_ETH_W5500=n

boards/enc28j60.overlay

@@ -0,0 +1,11 @@
+&spi1 {
+    eth0: ethernet@0 {
+        status = "okay";
+        reg = <0>;
+        compatible = "microchip,enc28j60";
+        int-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>;
+        spi-max-frequency = <10000000>;
+        local-mac-address = [ 00 80 00 01 02 03 ];
+        full-duplex;
+    };
+};

boards/native_sim.conf

@@ -33,4 +33,4 @@ CONFIG_COMMON_LIBC_MALLOC_ARENA_SIZE=262144
 CONFIG_GPIO=y
 
 # Ocre options
-CONFIG_OCRE_CONTAINER_FILESYSTEM=y
+CONFIG_OCRE_CONTAINER_FILESYSTEM=y

prj.conf

@@ -16,6 +16,10 @@ CONFIG_ZCBOR_VERBOSE=n
 
 CONFIG_THREAD_RUNTIME_STATS=y  # Needed by the latest version of WARM for time APIs
 
+# Allow for dynamically created threads
+CONFIG_DYNAMIC_THREAD=y
+CONFIG_DYNAMIC_THREAD_ALLOC=y
+
 # File system
 CONFIG_FILE_SYSTEM=y
 #CONFIG_DISK_ACCESS=y 
@@ -41,7 +45,6 @@ CONFIG_ZVFS_POLL_MAX=5
 
 CONFIG_NET_DHCPV4=y
 
-
 # MCU Boot options
 CONFIG_BOOTLOADER_MCUBOOT=n
 CONFIG_IMG_MANAGER=y

src/samples-mini/zephyr/main.c

@@ -17,13 +17,25 @@
 #include <ocre/ocre_input_file.h>
 #endif
 
+#include <zephyr/net/net_if.h>
+
 void create_sample_container();
+int ocre_network_init();
 
 int main(int argc, char *argv[]) {
     ocre_cs_ctx ctx;
     ocre_container_init_arguments_t args;
     char *container_filename = "hello";
 
+#ifdef CONFIG_OCRE_NETWORKING
+    int net_status = ocre_network_init();
+    if (net_status < 0) {
+        printf("Unable to connect to network\n");
+    } else {
+        printf("Network is UP\n");
+    }
+#endif
+
     ocre_app_storage_init();
 
     // Step 1:  Initialize the Ocre runtime
@@ -76,3 +88,23 @@ void create_sample_container(char *file_name) {
     fs_write(&f, &wasm_binary, wasm_binary_len);
     fs_close(&f);
 }
+
+int ocre_network_init() {
+
+    struct net_if *iface = net_if_get_default();
+    net_dhcpv4_start(iface);
+
+    printf("Waiting for network to be ready...\n");
+
+    int sleep_cnt = 0;
+    while (!net_if_is_up(iface) && (sleep_cnt < 10)) {
+        k_sleep(K_MSEC(200));
+        sleep_cnt++;
+    }
+
+    if (!net_if_is_up(iface)) {
+        return -ENOTCONN;
+    }
+
+    return 0;
+}