CI: test mips-unknown-linux-gnu

.travis.yml

@@ -48,6 +48,10 @@ matrix:
         apt:
           packages:
             - gcc-multilib
+    - env: TARGET=mips-unknown-linux-gnu
+      os: linux
+      services: docker
+      sudo: required
     - env: TARGET=powerpc-unknown-linux-gnu
       os: linux
       dist: trusty

ci/env.sh

@@ -24,12 +24,20 @@ case $TARGET in
         export PREFIX=arm-linux-gnueabihf-
         export QEMU_LD_PREFIX=/usr/arm-linux-gnueabihf
         ;;
+    mips-unknown-linux-gnu)
+        # NOTE $DOCKER values: 'y' (yes, call docker), 'i' (inside a docker container) or 'n' ("no)
+        if [[ -z $DOCKER ]]; then
+            export DOCKER=y
+        fi
+        export PREFIX=mips-linux-gnu-
+        export QEMU=qemu-mips
+        export QEMU_LD_PREFIX=/usr/mips-linux-gnu
+        ;;
     powerpc-unknown-linux-gnu)
         export PREFIX=powerpc-linux-gnu-
         export QEMU_LD_PREFIX=/usr/powerpc-linux-gnu
         ;;
     powerpc64le-unknown-linux-gnu)
-        # NOTE $DOCKER values: 'y' (yes, call docker), 'i' (inside a docker container) or 'n' ("no)
         if [[ -z $DOCKER ]]; then
             export DOCKER=y
         fi

ci/install.sh

@@ -12,6 +12,7 @@ install_deps() {
 
 install_qemu() {
     case $TARGET in
+        mips-unknown-linux-gnu |
         powerpc64le-unknown-linux-gnu)
             apt-get install -y --no-install-recommends \
                     qemu-user
@@ -35,6 +36,10 @@ install_c_toolchain() {
             sudo apt-get install -y --no-install-recommends \
                  gcc-aarch64-linux-gnu libc6-dev-arm64-cross
             ;;
+        mips-unknown-linux-gnu)
+            apt-get install -y --no-install-recommends \
+                    gcc-mips-linux-gnu libc6-dev-mips-cross
+            ;;
         powerpc64le-unknown-linux-gnu)
             apt-get install -y --no-install-recommends \
                     gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross