1 files changed, 65 insertions, 0 deletions
diff --git a/qemu-user-buildroot.sh b/qemu-user-buildroot.sh
new file mode 100755
index 0000000..2dd5fee
--- /dev/null
+++ b/qemu-user-buildroot.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env sh
+
+set -e
+set -x
+set -o pipefail
+
+BUILDROOT_BUILDDIR="${1}"
+QEMU_STATIC_BIN="${2}"
+TEST_BIN="${3}"
+
+BUILDROOT_TARGETDIR="${BUILDROOT_BUILDDIR}/output/target"
+
+retval=0
+
+if [ -z "${BUILDROOT_BUILDDIR}" -o -z "${QEMU_STATIC_BIN}" -o -z "${TEST_BIN}" ]; then
+    printf 'usage: NOCHROOT=[0|1] GDB=[0|1] %s [BUILDROOT-BUILD-DIR] [QEMU-STATIC-BIN] [BINARY-YOU-WANT-TO-EXECUTE]\n' "${0}"
+    exit 1
+fi
+
+if [ ! -r "${BUILDROOT_TARGETDIR}/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM" ]; then
+    printf '%s: Not a buildroot target directory: %s\n' "${0}" "${BUILDROOT_TARGETDIR}/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM"
+    retval=2
+fi
+
+if [ ! -x "${QEMU_STATIC_BIN}" ]; then
+    printf '%s: Not an executable: %s\n' "${0}" "${QEMU_STATIC_BIN}"
+    retval=2
+fi
+
+if [ ! -x "${TEST_BIN}" ]; then
+    printf '%s: Not an executable: %s\n' "${0}" "${TEST_BIN}"
+    retval=2
+fi
+
+if [ ${retval} -ne 0 ]; then
+    exit ${retval}
+fi
+
+# set rpath and copy test binary to target directory
+TEST_BIN_BNAME="$(basename "${TEST_BIN}")"
+cp "${TEST_BIN}" "${BUILDROOT_TARGETDIR}/${TEST_BIN_BNAME}"
+
+QEMU_BNAME="$(basename "${QEMU_STATIC_BIN}")"
+cp "${QEMU_STATIC_BIN}" "${BUILDROOT_TARGETDIR}/${QEMU_BNAME}"
+mkdir -p "${BUILDROOT_TARGETDIR}/home"
+
+if [ ! -z "${NOCHROOT}" ]; then
+SUDO=''
+CMDS="'${QEMU_STATIC_BIN}' -L '${BUILDROOT_TARGETDIR}' '${TEST_BIN}'"
+elif [ ! -z "${GDB}" ]; then
+SUDO=''
+CMDS="'${QEMU_STATIC_BIN}' -L '${BUILDROOT_TARGETDIR}' -g 31337 '${TEST_BIN}'"
+else
+SUDO='sudo'
+CMDS=$(cat << EOF
+mount -t proc /proc "${BUILDROOT_TARGETDIR}/proc"
+chroot . "/${QEMU_BNAME}" /bin/su -l nobody -s /bin/ash
+umount "${BUILDROOT_TARGETDIR}/proc"
+EOF
+)
+fi
+
+cd "${BUILDROOT_TARGETDIR}"
+
+${SUDO} ${SHELL} -c "${CMDS}"