Add x86_64-linux-android build support

.travis.yml

@@ -30,6 +30,7 @@ matrix:
     - env: TARGET=arm-linux-androideabi           CPP=1         STD=1 OPENSSL=0.5.5
     - env: TARGET=armv7-linux-androideabi         CPP=1         STD=1 OPENSSL=0.5.5
     - env: TARGET=i686-linux-android              CPP=1         STD=1 OPENSSL=0.5.5
+    - env: TARGET=x86_64-linux-android            CPP=1         STD=1 OPENSSL=0.5.5
 
     # OSX
     - env: TARGET=i686-apple-darwin                     DYLIB=1 STD=1                RUN=1

README.md

@@ -181,6 +181,7 @@ worst, "hang" (never terminate).
 | `thumbv7em-none-eabi` [3]            | 2.2.0  | 5.3.1 | N/A     |     | N/A   |        |
 | `thumbv7em-none-eabihf` [3]          | 2.2.0  | 5.3.1 | N/A     |     | N/A   |        |
 | `thumbv7m-none-eabi` [3]             | 2.2.0  | 5.3.1 | N/A     |     | N/A   |        |
+| `x86_64-linux-android`               | N/A    | 4.9   | 1.0.2k  | ✓   | N/A   |        |
 | `x86_64-pc-windows-gnu`[1]           | N/A    | 5.3.1 |         | ✓   | N/A   |        |
 | `x86_64-unknown-dragonfly` [1] [2]   | 4.6.0  | 5.3.0 | 1.0.2k  |     | N/A   |   ✓    |
 | `x86_64-unknown-freebsd` [1]         | 10.2   | 5.3.0 | 1.0.2k  |     | N/A   |        |

ci/script.sh

@@ -62,7 +62,6 @@ EOF
         git clone --depth 1 https://github.com/rust-lang/cargo $td
 
         pushd $td
-        cargo update -p libc
         cross build --target $TARGET
         popd
 

docker/x86_64-linux-android/Dockerfile

@@ -0,0 +1,33 @@
+FROM ubuntu:16.04
+
+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 android-ndk.sh /
+RUN bash /android-ndk.sh x86_64 21
+ENV PATH=$PATH:/android-ndk/bin
+
+COPY openssl.sh /
+RUN bash /openssl.sh linux-x86_64 x86_64-linux-android- -mandroid -fomit-frame-pointer
+
+# Libz is distributed in the android ndk, but for some unknown reason it is not
+# found in the build process of some crates, so we explicit set the DEP_Z_ROOT
+ENV CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER=x86_64-linux-android-gcc \
+    CC_x86_64_linux_android=x86_64-linux-android-gcc \
+    CXX_x86_64_linux_android=x86_64-linux-android-g++ \
+    DEP_Z_ROOT=/android-ndk/sysroot/usr/ \
+    OPENSSL_STATIC=1 \
+    OPENSSL_DIR=/openssl \
+    OPENSSL_INCLUDE_DIR=/openssl/include \
+    OPENSSL_LIB_DIR=/openssl/lib \
+    RUST_TEST_THREADS=1 \
+    HOME=/tmp/

src/main.rs

@@ -87,6 +87,7 @@ pub enum Target {
     Armv7LinuxAndroideabi,
     Aarch64LinuxAndroid,
     I686LinuxAndroid,
+    X86_64LinuxAndroid,
 
     // Linux
     Aarch64UnknownLinuxGnu,
@@ -157,7 +158,8 @@ impl Target {
             Target::ArmLinuxAndroideabi |
             Target::Armv7LinuxAndroideabi |
             Target::Aarch64LinuxAndroid |
-            Target::I686LinuxAndroid => true,
+            Target::I686LinuxAndroid |
+            Target::X86_64LinuxAndroid => true,
             _ => false,
         }
     }
@@ -250,6 +252,7 @@ impl Target {
             Thumbv7mNoneEabi => "thumbv7m-none-eabi",
             X86_64AppleDarwin => "x86_64-apple-darwin",
             X86_64PcWindowsGnu => "x86_64-pc-windows-gnu",
+            X86_64LinuxAndroid => "x86_64-linux-android",
             X86_64UnknownDragonfly => "x86_64-unknown-dragonfly",
             X86_64UnknownFreebsd => "x86_64-unknown-freebsd",
             X86_64UnknownLinuxGnu => "x86_64-unknown-linux-gnu",
@@ -295,6 +298,7 @@ impl Target {
             "thumbv7em-none-eabihf" => Thumbv7emNoneEabihf,
             "thumbv7m-none-eabi" => Thumbv7mNoneEabi,
             "x86_64-apple-darwin" => X86_64AppleDarwin,
+            "x86_64-linux-android" => X86_64LinuxAndroid,
             "x86_64-pc-windows-gnu" => X86_64PcWindowsGnu,
             "x86_64-unknown-dragonfly" => X86_64UnknownDragonfly,
             "x86_64-unknown-freebsd" => X86_64UnknownFreebsd,