snapshot of https://github.com/tauri-apps/tauri.git (dev, 2026-09-23; blobs > 131072B omitted)

.docker/cross/linux-runner

@@ -0,0 +1,173 @@
+#!/usr/bin/env bash
+
+set -e
+
+LOG=/tmp/qemu.log
+LOCK=/tmp/qemu.lock
+
+if [ -n "${CROSS_DEBUG}" ]; then
+    set -x
+fi
+
+# arch in the rust target
+arch="${1}"
+shift
+
+if [ "${CROSS_RUNNER}" = "" ]; then
+    if [[ "${arch}" == i?86 ]] || [[ "${arch}" == x86_64 ]]; then
+        CROSS_RUNNER=native
+    else
+        CROSS_RUNNER=qemu-user
+    fi
+fi
+
+# select qemu arch
+qarch="${arch}"
+case "${arch}" in
+    armv7)
+        qarch="arm"
+        ;;
+    i686)
+        qarch="i386"
+        ;;
+    powerpc)
+        qarch="ppc"
+        ;;
+    powerpc64)
+        qarch="ppc64"
+        ;;
+    powerpc64le)
+        if [ "${CROSS_RUNNER}" = "qemu-user" ]; then
+            qarch="ppc64le"
+        else
+            qarch="ppc64"
+        fi
+        ;;
+esac
+
+case "${CROSS_RUNNER}" in
+    native)
+        exec "${@}"
+        ;;
+    qemu-user)
+        exec "qemu-${qarch}" "${@}"
+        ;;
+    qemu-system)
+        true
+        ;;
+    *)
+        echo "Invalid runner: \"${CROSS_RUNNER}\"";
+        echo "Valid runners are: native, qemu-user and qemu-system"
+        exit 1
+        ;;
+esac
+
+n="$(nproc)"
+memory=1G
+driver9p="virtio-9p-pci"
+drivernet="virtio-net-pci"
+
+# select qemu parameters
+case "${arch}" in
+    aarch64)
+        # 8 is the max number of cpu supported by qemu-aarch64
+        n=$(( n > 8 ? 8 : n ))
+        opt="-machine virt -cpu cortex-a57"
+        ;;
+    armv7)
+        opt="-machine virt"
+        driver9p="virtio-9p-device"
+        drivernet="virtio-net-device"
+        ;;
+    i686)
+        opt="-append console=ttyS0"
+        ;;
+    mips|mipsel)
+        # avoid kernel error
+        # https://blahcat.github.io/2017/07/14/building-a-debian-stretch-qemu-image-for-mipsel/
+        opt="-append nokaslr"
+        n=1
+        ;;
+    mips64el)
+        # avoid kernel error
+        # https://blahcat.github.io/2017/07/14/building-a-debian-stretch-qemu-image-for-mipsel/
+        opt="-append nokaslr -cpu MIPS64R2-generic"
+        n=1
+        ;;
+    powerpc)
+        opt="-append console=ttyPZ0"
+        n=1
+        ;;
+    powerpc64|powerpc64le)
+        opt="-append console=hvc0 --nodefaults -serial stdio"
+        ;;
+    s390x)
+        n=1
+        driver9p="virtio-9p-ccw"
+        drivernet="virtio-net-ccw"
+        ;;
+    sparc64)
+        n=1
+        driver9p+=",bus=pciB"
+        drivernet+=",bus=pciB"
+        ;;
+    x86_64)
+        opt="-append console=ttyS0"
+        ;;
+esac
+
+(
+    flock -n 200 || exit 0
+
+    echo Booting QEMU virtual machine with $n cpus...
+
+    QEMU_CMD="qemu-system-${qarch} \
+        -m ${memory} \
+        -smp ${n} \
+        -nographic \
+        -monitor none \
+        -netdev user,id=net0,hostfwd=tcp::10022-:22 \
+        -device ${drivernet},netdev=net0 \
+        -kernel /qemu/kernel \
+        -initrd /qemu/initrd.gz \
+        ${opt} \
+        -fsdev local,id=fs0,path=/target,security_model=mapped \
+        -device ${driver9p},fsdev=fs0,mount_tag=target"
+
+    touch "${LOG}"
+    if [[ -n "${CROSS_DEBUG}" ]]; then
+        (${QEMU_CMD} 2>&1 | tee -a "${LOG}") &
+    else
+        ${QEMU_CMD} >> "${LOG}" 2>&1 &
+    fi
+
+    # wait for dropbear
+    for _ in $(seq 240); do
+        if grep -q "Not backgrounding" "${LOG}"; then
+            READY=1
+            break
+        fi
+        sleep 0.5s
+    done
+
+    if [ -z "${READY}" ]; then
+        if [ -n "${CROSS_DEBUG}" ]; then
+            echo "Not ready but continuing because CROSS_DEBUG is set"
+        else
+            echo "Qemu is not ready after ${SECONDS} seconds..."
+            echo "Set the environment variable CROSS_DEBUG=1 to debug"
+            echo "Last 100 lines of qemu output:"
+            tail -n 100 "${LOG}"
+            exit 1
+        fi
+    fi
+
+    echo "Booted in ${SECONDS} seconds"
+
+) 200>"${LOCK}"
+
+if [[ -t 1 ]] && [[ -t 2 ]]; then
+  tty_flag='-t'
+fi
+
+exec dbclient ${tty_flag} -p 10022 -y -y root@localhost "${@}"