Add initial CI support for mips64(el)-unknown-linux-muslabi64 targets

Author: xen0n

ci/azure.yml

@@ -58,8 +58,12 @@ jobs:
           TARGET: mips-unknown-linux-musl
         mips64-unknown-linux-gnuabi64:
           TARGET: mips64-unknown-linux-gnuabi64
+        mips64-unknown-linux-muslabi64:
+          TARGET: mips64-unknown-linux-muslabi64
         mips64el-unknown-linux-gnuabi64:
           TARGET: mips64el-unknown-linux-gnuabi64
+        mips64el-unknown-linux-muslabi64:
+          TARGET: mips64el-unknown-linux-muslabi64
         mipsel-unknown-linux-musl:
           TARGET: mipsel-unknown-linux-musl
         #powerpc-unknown-linux-gnu:

ci/build.sh

@@ -204,6 +204,8 @@ i686-unknown-netbsd \
 i686-unknown-openbsd \
 mips-unknown-linux-uclibc \
 mipsel-unknown-linux-uclibc \
+mips64-unknown-linux-muslabi64 \
+mips64el-unknown-linux-muslabi64 \
 nvptx64-nvidia-cuda \
 powerpc-unknown-linux-gnuspe \
 powerpc-unknown-netbsd \

ci/docker/mips64-unknown-linux-muslabi64/Dockerfile

@@ -0,0 +1,15 @@
+FROM ubuntu:19.04
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  gcc make libc6-dev git curl ca-certificates \
+  gcc-mips64-linux-gnuabi64 qemu-user
+
+COPY install-musl.sh /
+RUN sh /install-musl.sh mips64
+
+# FIXME: shouldn't need the `-lgcc` here, shouldn't that be in libstd?
+ENV PATH=$PATH:/musl-mips64/bin:/rust/bin \
+    CC_mips64_unknown_linux_muslabi64=musl-gcc \
+    RUSTFLAGS='-Clink-args=-lgcc' \
+    CARGO_TARGET_MIPS64_UNKNOWN_LINUX_MUSLABI64_LINKER=musl-gcc \
+    CARGO_TARGET_MIPS64_UNKNOWN_LINUX_MUSLABI64_RUNNER="qemu-mips64 -L /musl-mips64"

ci/docker/mips64el-unknown-linux-muslabi64/Dockerfile

@@ -0,0 +1,15 @@
+FROM ubuntu:19.04
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  gcc make libc6-dev git curl ca-certificates \
+  gcc-mips64el-linux-gnuabi64 qemu-user
+
+COPY install-musl.sh /
+RUN sh /install-musl.sh mips64el
+
+# FIXME: shouldn't need the `-lgcc` here, shouldn't that be in libstd?
+ENV PATH=$PATH:/musl-mips64el/bin:/rust/bin \
+    CC_mips64el_unknown_linux_muslabi64=musl-gcc \
+    RUSTFLAGS='-Clink-args=-lgcc' \
+    CARGO_TARGET_MIPS64EL_UNKNOWN_LINUX_MUSLABI64_LINKER=musl-gcc \
+    CARGO_TARGET_MIPS64EL_UNKNOWN_LINUX_MUSLABI64_RUNNER="qemu-mips64el -L /musl-mips64el"

ci/install-musl.sh

@@ -46,6 +46,20 @@ case ${1} in
         ./configure --prefix="/musl-${musl_arch}"
         make install -j4
         ;;
+    mips64)
+        musl_arch=mips64
+        kernel_arch=mips
+        CC=mips64-linux-gnuabi64-gcc CFLAGS="-march=mips64r2 -mabi=64" \
+          ./configure --prefix="/musl-${musl_arch}" --enable-wrapper=yes
+        make install -j4
+        ;;
+    mips64el)
+        musl_arch=mips64el
+        kernel_arch=mips
+        CC=mips64el-linux-gnuabi64-gcc CFLAGS="-march=mips64r2 -mabi=64" \
+          ./configure --prefix="/musl-${musl_arch}" --enable-wrapper=yes
+        make install -j4
+        ;;
     *)
         echo "Unknown target arch: \"${1}\""
         exit 1