Prep for and expand test infrastructure

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "compiler-rt/compiler-rt-cdylib/compiler-rt"]
+	path = compiler-rt/compiler-rt-cdylib/compiler-rt
+	url = https://github.com/llvm-mirror/compiler-rt

.travis.yml

@@ -1,62 +1,63 @@
 dist: trusty
-language: generic
+language: rust
 services: docker
 sudo: required
+rust: nightly
+cache: cargo
 
 matrix:
   include:
     - env: TARGET=aarch64-unknown-linux-gnu
-      os: linux
     - env: TARGET=arm-unknown-linux-gnueabi
-      os: linux
+      # FIXME(rust-lang/rust#36518)
+      rust: nightly-2016-09-21
     - env: TARGET=arm-unknown-linux-gnueabihf
-      os: linux
     - env: TARGET=armv7-unknown-linux-gnueabihf
-      os: linux
     - env: TARGET=i586-unknown-linux-gnu
-      os: linux
     - env: TARGET=i686-apple-darwin
-      language: ruby
+      # FIXME(rust-lang/rust#36793)
+      rust: nightly-2016-09-10
       os: osx
     - env: TARGET=i686-unknown-linux-gnu
-      os: linux
+      # FIXME(rust-lang/rust#36793)
+      rust: nightly-2016-09-10
     - env: TARGET=mips-unknown-linux-gnu
-      os: linux
     - env: TARGET=mipsel-unknown-linux-gnu
-      os: linux
     - env: TARGET=powerpc-unknown-linux-gnu
-      os: linux
     - env: TARGET=powerpc64-unknown-linux-gnu
-      os: linux
-    - env: TARGET=powerpc64le-unknown-linux-gnu
-      os: linux
+    # QEMU crashes even when executing the simplest cross compiled C program:
+    # `int main() { return 0; }`
+    - env: TARGET=powerpc64le-unknown-linux-gnu NO_RUN=1
     - env: TARGET=thumbv6m-none-eabi
-      os: linux
-    - env: TARGET=thumbv6m-none-eabi WEAK=true
-      os: linux
+      install: cargo install xargo --debug -f
+      script: $HOME/.cargo/bin/xargo build --target $TARGET
     - env: TARGET=thumbv7em-none-eabi
-      os: linux
-    - env: TARGET=thumbv7em-none-eabi WEAK=true
-      os: linux
+      install: cargo install xargo --debug -f
+      script: $HOME/.cargo/bin/xargo build --target $TARGET
     - env: TARGET=thumbv7em-none-eabihf
-      os: linux
-    - env: TARGET=thumbv7em-none-eabihf WEAK=true
-      os: linux
-    - env: TARGET=thumbv7m-none-eabi
-      os: linux
-    - env: TARGET=thumbv7m-none-eabi WEAK=true
-      os: linux
+      install: cargo install xargo --debug -f
+      script: $HOME/.cargo/bin/xargo build --target $TARGET
     - env: TARGET=x86_64-apple-darwin
-      language: ruby
       os: osx
-    - env: TARGET=x86_64-unknown-linux-gnu
-      os: linux
+env: TARGET=x86_64-unknown-linux-gnu
+
+before_install:
+  - test "$TRAVIS_OS_NAME" = "osx" || docker run --rm --privileged multiarch/qemu-user-static:register
 
 install:
-  - bash ci/install.sh
+  - curl https://static.rust-lang.org/rustup.sh |
+    sh -s -- --add-target=$TARGET --disable-sudo -y --prefix=`rustc --print sysroot`
 
 script:
-  - bash ci/script.sh
+  - cargo generate-lockfile
+  - if [[ $TRAVIS_OS_NAME = "linux" ]]; then
+      sudo apt-get remove -y qemu-user-static &&
+      sudo apt-get install -y qemu-user-static &&
+      sh ci/run-docker.sh $TARGET;
+    else
+      cargo test --target $TARGET &&
+      cargo test --target $TARGET --release;
+    fi
 
 branches:
   only:

Cargo.toml

@@ -13,9 +13,8 @@ optional = true
 [dev-dependencies]
 quickcheck = "0.3.1"
 rand = "0.3.14"
-
-[dev-dependencies.gcc_s]
-path = "gcc_s"
+gcc_s = { path = "gcc_s" }
+compiler-rt = { path = "compiler-rt" }
 
 [features]
 weak = ["rlibc/weak"]

README.md

@@ -16,8 +16,8 @@ See [rust-lang/rust#35437][0].
 
 If you are working with a target that doesn't have binary releases of std available via rustup (this
 probably means you are building the core crate yourself) and need compiler-rt intrinsics (i.e. you
-are probably getting linker errors when building an executable: "undefined reference to
-__aeabi_memcpy"), you can use this crate to get those intrinsics and solve the linker errors. To do
+are probably getting linker errors when building an executable: `undefined reference to
+__aeabi_memcpy`), you can use this crate to get those intrinsics and solve the linker errors. To do
 that, simply add this crate as a Cargo dependency (it doesn't matter where in the dependency graph
 this crate ends up, as long as it's there):
 
@@ -52,7 +52,7 @@ porting that particular intrinsic.
 1. [Rust][4] and [C][5] have slightly different operator precedence. C evaluates comparisons (`== !=`) before bitwise operations (`& | ^`), while Rust evaluates the other way.
 2. C assumes wrapping operations everywhere. Rust panics on overflow when in debug mode. Consider using the [Wrapping][6] type or the explicit [wrapping_*][7] functions where applicable.
 3. Note [C implicit casts][8], especially integer promotion. Rust is much more explicit about casting, so be sure that any cast which affects the output is ported to the Rust implementation.
-4. Rust has [many functions][9] for integer or floating point manipulation in the standard library. Consider using one of these functions rather than porting a new one. 
+4. Rust has [many functions][9] for integer or floating point manipulation in the standard library. Consider using one of these functions rather than porting a new one.
 
 [4]: https://doc.rust-lang.org/reference.html#operator-precedence
 [5]: http://en.cppreference.com/w/c/language/operator_precedence

appveyor.yml

@@ -4,6 +4,7 @@ environment:
     - TARGET: x86_64-pc-windows-msvc
 
 install:
+  - git submodule update --init
   - curl -sSf -o rustup-init.exe https://win.rustup.rs
   - rustup-init.exe --default-host %TARGET% --default-toolchain nightly -y
   - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin

build.rs

@@ -4,4 +4,5 @@ fn main() {
     if env::var("TARGET").unwrap().ends_with("gnueabihf") {
         println!("cargo:rustc-cfg=gnueabihf")
     }
+    println!("cargo:rerun-if-changed=build.rs");
 }

ci/docker/aarch64-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,10 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc libc6-dev ca-certificates \
+  gcc-aarch64-linux-gnu libc6-dev-arm64-cross \
+  qemu-user-static
+ENV CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/aarch64-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/arm-unknown-linux-gnueabi/Dockerfile

@@ -0,0 +1,10 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc libc6-dev ca-certificates \
+  gcc-arm-linux-gnueabi libc6-dev-armel-cross qemu-user-static
+ENV CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABI_LINKER=arm-linux-gnueabi-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/arm-linux-gnueabi \
+    RUST_TEST_THREADS=1
+

ci/docker/arm-unknown-linux-gnueabihf/Dockerfile

@@ -0,0 +1,9 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc libc6-dev ca-certificates \
+  gcc-arm-linux-gnueabihf libc6-dev-armhf-cross qemu-user-static
+ENV CARGO_TARGET_ARM_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/arm-linux-gnueabihf \
+    RUST_TEST_THREADS=1

ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile

@@ -0,0 +1,9 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc libc6-dev ca-certificates \
+  gcc-arm-linux-gnueabihf libc6-dev-armhf-cross qemu-user-static
+ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/arm-linux-gnueabihf \
+    RUST_TEST_THREADS=1

ci/docker/i586-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,5 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc-multilib libc6-dev ca-certificates
+ENV PATH=$PATH:/rust/bin

ci/docker/i686-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,5 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc-multilib libc6-dev ca-certificates
+ENV PATH=$PATH:/rust/bin

ci/docker/mips-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,12 @@
+FROM ubuntu:16.04
+
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+        gcc libc6-dev ca-certificates \
+        gcc-mips-linux-gnu libc6-dev-mips-cross \
+        binfmt-support qemu-user-static qemu-system-mips
+
+ENV CARGO_TARGET_MIPS_UNKNOWN_LINUX_GNU_LINKER=mips-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/mips-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/mipsel-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,12 @@
+FROM ubuntu:16.04
+
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+        gcc libc6-dev ca-certificates \
+        gcc-mipsel-linux-gnu libc6-dev-mipsel-cross \
+        binfmt-support qemu-user-static
+
+ENV CARGO_TARGET_MIPSEL_UNKNOWN_LINUX_GNU_LINKER=mipsel-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/mipsel-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/powerpc-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,12 @@
+FROM ubuntu:16.04
+
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+        gcc libc6-dev qemu-user-static ca-certificates \
+        gcc-powerpc-linux-gnu libc6-dev-powerpc-cross \
+        qemu-system-ppc
+
+ENV CARGO_TARGET_POWERPC_UNKNOWN_LINUX_GNU_LINKER=powerpc-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/powerpc-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/powerpc64-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:16.04
+
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+        gcc libc6-dev ca-certificates \
+        gcc-powerpc64-linux-gnu libc6-dev-ppc64-cross \
+        binfmt-support qemu-user-static qemu-system-ppc
+
+ENV CARGO_TARGET_POWERPC64_UNKNOWN_LINUX_GNU_LINKER=powerpc64-linux-gnu-gcc \
+    CC_powerpc64_unknown_linux_gnu=powerpc64-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/powerpc64-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:16.04
+
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+        gcc libc6-dev qemu-user-static ca-certificates \
+        gcc-powerpc64le-linux-gnu libc6-dev-ppc64el-cross \
+        qemu-system-ppc
+
+ENV CARGO_TARGET_POWERPC64LE_UNKNOWN_LINUX_GNU_LINKER=powerpc64le-linux-gnu-gcc \
+    CC_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-gcc \
+    PATH=$PATH:/rust/bin \
+    QEMU_LD_PREFIX=/usr/powerpc64le-linux-gnu \
+    RUST_TEST_THREADS=1

ci/docker/x86_64-unknown-linux-gnu/Dockerfile

@@ -0,0 +1,6 @@
+FROM ubuntu:16.04
+RUN apt-get update
+RUN apt-get install -y --no-install-recommends \
+  gcc libc6-dev ca-certificates
+ENV PATH=$PATH:/rust/bin
+