Add mipsel-unknown-linux-musl target.

.travis.yml

@@ -38,6 +38,7 @@ matrix:
     # The other targets fails with: undefined reference to `__dso_handle'
     # See https://github.com/rust-lang/rust/issues/36710
     - env: TARGET=mips-unknown-linux-musl         CPP=1         STD=1 OPENSSL=0.5.5  RUN=1
+    - env: TARGET=mipsel-unknown-linux-musl       CPP=1         STD=1 OPENSSL=0.5.5  RUN=1
     - env: TARGET=x86_64-unknown-linux-musl                     STD=1 OPENSSL=0.5.5  RUN=1 DEPLOY=1
 
     # Android

docker/mipsel-unknown-linux-musl/Dockerfile

@@ -0,0 +1,39 @@
+FROM ubuntu:18.04
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    ca-certificates \
+    cmake \
+    gcc \
+    libc6-dev \
+    make \
+    pkg-config
+
+COPY xargo.sh /
+RUN bash /xargo.sh
+
+COPY qemu.sh /
+RUN bash /qemu.sh mipsel
+
+COPY musl.sh /
+RUN bash /musl.sh \
+    TARGET=mipsel-linux-muslsf \
+    "COMMON_CONFIG += -with-arch=mips32"
+
+COPY openssl.sh /
+RUN bash /openssl.sh linux-mips32 mipsel-linux-muslsf-
+
+# This allows qemu run dynamic linked binaries
+RUN ln -sf \
+    /usr/local/mipsel-linux-muslsf/lib/libc.so \
+    /usr/local/mipsel-linux-muslsf/lib/ld-musl-mipsel-sf.so.1
+ENV QEMU_LD_PREFIX=/usr/local/mipsel-linux-muslsf
+
+ENV CARGO_TARGET_MIPSEL_UNKNOWN_LINUX_MUSL_LINKER=mipsel-linux-muslsf-gcc \
+    CARGO_TARGET_MIPSEL_UNKNOWN_LINUX_MUSL_RUNNER=qemu-mipsel \
+    CC_mipsel_unknown_linux_musl=mipsel-linux-muslsf-gcc \
+    CXX_mipsel_unknown_linux_musl=mipsel-linux-muslsf-g++ \
+    OPENSSL_DIR=/openssl \
+    OPENSSL_INCLUDE_DIR=/openssl/include \
+    OPENSSL_LIB_DIR=/openssl/lib \
+    RUST_TEST_THREADS=1