Merge #1285

1285: Add fuchsia support r=asomers a=amanda-tait

This change adds support for the Fuchsia operating system to the nix
crate. Fuchsia developers have a use case for nix, particularly its safe
interfaces to the recvmsg(2) and sendmsg(2). Adding support requires:
* incrementing the libc dependency to 0.2.74
* conditionally not compiling nix functionality which depends on libc functionality
  that does not exist for Fuchsia

Co-authored-by: Tamir Duberstein <[email protected]>
Co-authored-by: Amanda Tait <[email protected]>

.cirrus.yml

@@ -13,7 +13,7 @@ task:
   # Install Rust
   setup_script:
     - fetch https://sh.rustup.rs -o rustup.sh
-    - sh rustup.sh -y --profile=minimal --default-toolchain 1.36.0
+    - sh rustup.sh -y --profile=minimal --default-toolchain 1.40.0
     - $HOME/.cargo/bin/rustup target add i686-unknown-freebsd
   amd64_test_script:
     - . $HOME/.cargo/env

.travis.yml

@@ -18,69 +18,69 @@ matrix:
     # week.  Additionally they're moved to the front of the line to get them in
     # the Travis OS X build queue first.
     - env: TARGET="aarch64-apple-ios;armv7-apple-ios;armv7s-apple-ios;i386-apple-ios;x86_64-apple-ios" DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
       os: osx
 
     # Mac builds
     # These are also moved to be first because they wait in a long queue with
     # Travis
     - env: TARGET=i686-apple-darwin
-      rust: 1.36.0
+      rust: 1.40.0
       os: osx
     - env: TARGET=x86_64-apple-darwin
-      rust: 1.36.0
+      rust: 1.40.0
       os: osx
 
     # Android
     - env: TARGET=aarch64-linux-android DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=arm-linux-androideabi DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=armv7-linux-androideabi DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=i686-linux-android DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=x86_64-linux-android DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
 
     # Linux
     - env: TARGET=aarch64-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=arm-unknown-linux-gnueabi
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=arm-unknown-linux-musleabi DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=armv7-unknown-linux-gnueabihf
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=i686-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=i686-unknown-linux-musl
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=mips-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=mips64-unknown-linux-gnuabi64
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=mips64el-unknown-linux-gnuabi64
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=mipsel-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=powerpc-unknown-linux-gnu DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=powerpc64le-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=s390x-unknown-linux-gnu DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.36.0
+      rust: 1.40.0
     - env: TARGET=x86_64-unknown-linux-musl
-      rust: 1.36.0
+      rust: 1.40.0
 
     # *BSD
     # FreeBSD i686 and x86_64 use Cirrus instead of Travis
     # - env: TARGET=i686-unknown-freebsd DISABLE_TESTS=1
     # - env: TARGET=x86_64-unknown-freebsd DISABLE_TESTS=1
     - env: TARGET=x86_64-unknown-netbsd DISABLE_TESTS=1
-      rust: 1.36.0
+      rust: 1.40.0
 
     # Make sure stable is always working too
     - env: TARGET=x86_64-unknown-linux-gnu
@@ -102,10 +102,25 @@ matrix:
       name: redox
       script:
         - curl --proto '=https' --tlsv1.2 -sSf --output rustup.sh https://sh.rustup.rs
-        - sh rustup.sh -y --profile=minimal --default-toolchain 1.36.0 --target x86_64-unknown-redox
+        - sh rustup.sh -y --profile=minimal --default-toolchain 1.40.0 --target x86_64-unknown-redox
         - . $HOME/.cargo/env
         - cargo build --all-targets
 
+    - language: generic
+      name: fuchsia
+      script:
+        - curl --proto '=https' --tlsv1.2 -sSf --output rustup.sh https://sh.rustup.rs
+        - sh rustup.sh -y --profile=minimal --default-toolchain 1.40.0 --target x86_64-fuchsia
+        - . $HOME/.cargo/env
+        - cargo build --target x86_64-fuchsia
+        # cargo test wants to build a binary, but it isn't possible to link
+        # Rust binaries without the presence of a Fuchsia sysroot. When it is
+        # possible, we should make sure tests compile and link, too. Following
+        # that, we should run the tests when possible.
+        # - cargo test  --target x86_64-fuchsia --no-run
+        # All we can do for now is make sure the tests type-check:
+        - cargo check --target x86_64-fuchsia --all-targets
+
 before_install: set -e
 
 install:

CHANGELOG.md

@@ -6,7 +6,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ## [Unreleased] - ReleaseDate
 ### Added
 - Added `mremap` (#[1306](https://github.com/nix-rust/nix/pull/1306))
-
+- Added limited Fuchsia support (#[1285](https://github.com/nix-rust/nix/pull/1285))
+### Changed
+- Minimum supported Rust version is now 1.40.0.
+  ([#1285](https://github.com/nix-rust/nix/pull/1285))
 ### Fixed
 ### Changed
 ### Removed

Cargo.toml

@@ -26,6 +26,7 @@ targets = [
   "x86_64-unknown-openbsd",
   "x86_64-unknown-netbsd",
   "x86_64-unknown-dragonfly",
+  "x86_64-fuchsia",
   "x86_64-unknown-redox"
 ]
 

README.md

@@ -82,11 +82,12 @@ Tier 2:
   * x86_64-unknown-netbsd
 
 Tier 3:
+  * x86_64-fuchsia
   * x86_64-unknown-redox
 
 ## Usage
 
-`nix` requires Rust 1.36.0 or newer.
+`nix` requires Rust 1.40.0 or newer.
 
 To use `nix`, add this to your `Cargo.toml`: