Merge #245

245: Add `arm-linux-gnueabihf`. r=Dylan-DPC a=reitermarkus

I took the suggestion from #158 (comment) and used a pre-compiled toolchain.

There are two commits here, the first one uses https://github.com/raspberrypi/tools, in the second one I switched to https://toolchains.bootlin.com/releases_armv6-eabihf.html.

I am not sure however if the `sysroot` is set correctly, since everything except `qemu` also works without `LD_LIBRARY_PATH=/usr/arm-linux-gnueabihf/lib:/usr/arm-linux-gnueabihf/arm-buildroot-linux-gnueabihf/lib`.

Co-authored-by: Markus Reiter <[email protected]>

Author: bors[bot]

.travis.yml

@@ -9,6 +9,7 @@ matrix:
     # Linux
     - env: TARGET=aarch64-unknown-linux-gnu       CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1 RUNNERS="qemu-user qemu-system" CROSS_DEBUG=1
     - env: TARGET=arm-unknown-linux-gnueabi       CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1
+    - env: TARGET=arm-unknown-linux-gnueabihf     CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1
     - env: TARGET=armv7-unknown-linux-gnueabihf   CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1 RUNNERS="qemu-user qemu-system"
     - env: TARGET=i586-unknown-linux-gnu          CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1
     - env: TARGET=i686-unknown-linux-gnu          CPP=1 DYLIB=1 STD=1 OPENSSL=0.5.5  RUN=1 RUNNERS="native qemu-user qemu-system"

README.md

@@ -1,6 +1,6 @@
 [![crates.io](https://img.shields.io/crates/v/cross.svg)](https://crates.io/crates/cross)
 [![crates.io](https://img.shields.io/crates/d/cross.svg)](https://crates.io/crates/cross)
-[![Build Status](https://travis-ci.org/rust-embedded/cross.svg?branch=master)](https://travis-ci.org/rust-embedded/cross) 
+[![Build Status](https://travis-ci.org/rust-embedded/cross.svg?branch=master)](https://travis-ci.org/rust-embedded/cross)
 
 # `cross`
 
@@ -196,6 +196,7 @@ worst, "hang" (never terminate).
 | `aarch64-unknown-linux-musl`         | 1.1.20 | 6.3.0   | 1.0.2p  |     | 2.8.0 |   ✓    |
 | `arm-linux-androideabi` [5]          | N/A    | 4.9     | 1.0.2p  | ✓   | N/A   |   ✓    |
 | `arm-unknown-linux-gnueabi`          | 2.19   | 4.8.2   | 1.0.2p  | ✓   | 2.8.0 |   ✓    |
+| `arm-unknown-linux-gnueabihf`        | 2.27   | 7.3.0   | 1.0.2p  | ✓   | 2.10  |   ✓    |
 | `arm-unknown-linux-musleabi`         | 1.1.20 | 6.3.0   | 1.0.2p  |     | 2.8.0 |   ✓    |
 | `arm-unknown-linux-musleabihf`       | 1.1.20 | 6.3.0   | 1.0.2p  |     | 2.8.0 |   ✓    |
 | `armv5te-unknown-linux-musleabi`     | 1.1.20 | 6.3.0   |  N/A    |     | 2.8.0 |   ✓    |

docker/arm-unknown-linux-gnueabihf/Dockerfile

@@ -0,0 +1,52 @@
+FROM ubuntu:14.04
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    ca-certificates \
+    cmake \
+    gcc \
+    libc6-dev \
+    make \
+    pkg-config \
+    git \
+    automake \
+    libtool \
+    m4 \
+    autoconf \
+    make \
+    file \
+    binutils
+
+COPY xargo.sh /
+RUN bash /xargo.sh
+
+COPY cmake.sh /
+RUN apt-get purge --auto-remove -y cmake && \
+    bash /cmake.sh 3.5.1
+
+RUN mkdir /usr/arm-linux-gnueabihf && \
+    apt-get install -y --no-install-recommends curl && \
+    cd /usr/arm-linux-gnueabihf && \
+    curl -L https://toolchains.bootlin.com/downloads/releases/toolchains/armv6-eabihf/tarballs/armv6-eabihf--glibc--stable-2018.11-1.tar.bz2 | \
+    tar --strip-components 1 -xj && \
+    apt-get purge --auto-remove -y curl
+
+COPY openssl.sh qemu.sh /
+
+RUN bash /qemu.sh arm
+ENV PATH /usr/arm-linux-gnueabihf/bin:$PATH
+
+RUN apt-get install -y --no-install-recommends \
+    libc6-dev-armhf-cross && \
+    bash /openssl.sh linux-armv4 arm-linux-
+
+ENV CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gcc \
+    CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABIHF_RUNNER=qemu-arm \
+    CC_arm_unknown_linux_gnueabihf=arm-linux-gcc \
+    CXX_arm_unknown_linux_gnueabihf=arm-linux-g++ \
+    OPENSSL_DIR=/openssl \
+    OPENSSL_INCLUDE_DIR=/openssl/include \
+    OPENSSL_LIB_DIR=/openssl/lib \
+    QEMU_LD_PREFIX=/usr/arm-linux-gnueabihf \
+    LD_LIBRARY_PATH=/usr/arm-linux-gnueabihf/lib:/usr/arm-linux-gnueabihf/arm-buildroot-linux-gnueabihf/lib \
+    RUST_TEST_THREADS=1