add powerpc-unknown-linux-musl target

Author: ArcaneNibble

src/bootstrap/configure.py

@@ -117,6 +117,8 @@ def v(*args):
   "armv7-unknown-linux-musleabihf install directory")
 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
   "aarch64-unknown-linux-musl install directory")
+v("musl-root-ppc", "target.powerpc-unknown-linux-musl.musl-root",
+  "powerpc-unknown-linux-musl install directory")
 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
   "rootfs in qemu testing, you probably don't want to use this")
 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",

src/bootstrap/native.rs

@@ -443,6 +443,7 @@ impl Step for Openssl {
             "mips64el-unknown-linux-gnuabi64" => "linux64-mips64",
             "mipsel-unknown-linux-gnu" => "linux-mips32",
             "powerpc-unknown-linux-gnu" => "linux-ppc",
+            "powerpc-unknown-linux-musl" => "linux-ppc",
             "powerpc64-unknown-linux-gnu" => "linux-ppc64",
             "powerpc64le-unknown-linux-gnu" => "linux-ppc64le",
             "s390x-unknown-linux-gnu" => "linux64-s390x",

src/ci/docker/cross/Dockerfile

@@ -15,6 +15,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   g++-arm-linux-gnueabi \
   g++-arm-linux-gnueabihf \
   g++-aarch64-linux-gnu \
+  g++-powerpc-linux-gnu \
   gcc-sparc64-linux-gnu \
   libc6-dev-sparc64-cross \
   bzip2 \
@@ -48,6 +49,7 @@ ENV TARGETS=$TARGETS,arm-unknown-linux-musleabi
 ENV TARGETS=$TARGETS,arm-unknown-linux-musleabihf
 ENV TARGETS=$TARGETS,armv7-unknown-linux-musleabihf
 ENV TARGETS=$TARGETS,aarch64-unknown-linux-musl
+ENV TARGETS=$TARGETS,powerpc-unknown-linux-musl
 ENV TARGETS=$TARGETS,sparc64-unknown-linux-gnu
 ENV TARGETS=$TARGETS,x86_64-unknown-redox
 
@@ -65,7 +67,8 @@ ENV RUST_CONFIGURE_ARGS \
       --musl-root-arm=/usr/local/arm-linux-musleabi \
       --musl-root-armhf=/usr/local/arm-linux-musleabihf \
       --musl-root-armv7=/usr/local/armv7-linux-musleabihf \
-      --musl-root-aarch64=/usr/local/aarch64-linux-musl
+      --musl-root-aarch64=/usr/local/aarch64-linux-musl \
+      --musl-root-ppc=/usr/local/ppc-linux-musl
 ENV SCRIPT python2.7 ../x.py dist --target $TARGETS
 
 # sccache

src/ci/docker/cross/build-arm-musl.sh

@@ -77,12 +77,25 @@ CFLAGS="" \
 hide_output make -j$(nproc)
 hide_output make install
 cd ..
+rm -rf musl-$MUSL
+
+tar xf musl-$MUSL.tar.gz
+cd musl-$MUSL
+CC=powerpc-linux-gnu-gcc \
+CFLAGS="" \
+    hide_output ./configure \
+        --prefix=/usr/local/ppc-linux-musl \
+        --enable-wrapper=gcc
+hide_output make -j$(nproc)
+hide_output make install
+cd ..
 rm -rf musl-$MUSL*
 
 ln -nsf ../arm-linux-musleabi/bin/musl-gcc /usr/local/bin/arm-linux-musleabi-gcc
 ln -nsf ../arm-linux-musleabihf/bin/musl-gcc /usr/local/bin/arm-linux-musleabihf-gcc
 ln -nsf ../armv7-linux-musleabihf/bin/musl-gcc /usr/local/bin/armv7-linux-musleabihf-gcc
 ln -nsf ../aarch64-linux-musl/bin/musl-gcc /usr/local/bin/aarch64-unknown-linux-musl-gcc
+ln -nsf ../ppc-linux-musl/bin/musl-gcc /usr/local/bin/powerpc-unknown-linux-musl-gcc
 
 curl -L https://github.com/llvm-mirror/llvm/archive/release_39.tar.gz | tar xzf -
 curl -L https://github.com/llvm-mirror/libunwind/archive/release_39.tar.gz | tar xzf -
@@ -143,5 +156,19 @@ cp lib/libunwind.a /usr/local/aarch64-linux-musl/lib
 cd ..
 rm -rf libunwind-build
 
+mkdir libunwind-build
+cd libunwind-build
+cmake ../libunwind-release_39 \
+          -DLLVM_PATH=/tmp/llvm-release_39 \
+          -DLIBUNWIND_ENABLE_SHARED=0 \
+          -DCMAKE_C_COMPILER=powerpc-linux-gnu-gcc \
+          -DCMAKE_CXX_COMPILER=powerpc-linux-gnu-g++ \
+          -DCMAKE_C_FLAGS="" \
+          -DCMAKE_CXX_FLAGS=""
+make -j$(nproc)
+cp lib/libunwind.a /usr/local/ppc-linux-musl/lib
+cd ..
+rm -rf libunwind-build
+
 rm -rf libunwind-release_39
 rm -rf llvm-release_39

src/librustc_back/target/mod.rs

@@ -143,6 +143,7 @@ supported_targets! {
     ("mips64el-unknown-linux-gnuabi64", mips64el_unknown_linux_gnuabi64),
     ("mipsel-unknown-linux-gnu", mipsel_unknown_linux_gnu),
     ("powerpc-unknown-linux-gnu", powerpc_unknown_linux_gnu),
+    ("powerpc-unknown-linux-musl", powerpc_unknown_linux_musl),
     ("powerpc64-unknown-linux-gnu", powerpc64_unknown_linux_gnu),
     ("powerpc64le-unknown-linux-gnu", powerpc64le_unknown_linux_gnu),
     ("s390x-unknown-linux-gnu", s390x_unknown_linux_gnu),

src/librustc_back/target/powerpc_unknown_linux_musl.rs

@@ -0,0 +1,35 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use LinkerFlavor;
+use target::{Target, TargetResult};
+
+pub fn target() -> TargetResult {
+    let mut base = super::linux_musl_base::opts();
+    base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m32".to_string());
+    base.max_atomic_width = Some(32);
+
+    // see #36994
+    base.exe_allocation_crate = None;
+
+    Ok(Target {
+        llvm_target: "powerpc-unknown-linux-musl".to_string(),
+        target_endian: "big".to_string(),
+        target_pointer_width: "32".to_string(),
+        target_c_int_width: "32".to_string(),
+        data_layout: "E-m:e-p:32:32-i64:64-n32".to_string(),
+        arch: "powerpc".to_string(),
+        target_os: "linux".to_string(),
+        target_env: "musl".to_string(),
+        target_vendor: "unknown".to_string(),
+        linker_flavor: LinkerFlavor::Gcc,
+        options: base,
+    })
+}

src/tools/build-manifest/src/main.rs

@@ -79,6 +79,7 @@ static TARGETS: &'static [&'static str] = &[
     "mipsel-unknown-linux-gnu",
     "mipsel-unknown-linux-musl",
     "powerpc-unknown-linux-gnu",
+    "powerpc-unknown-linux-musl",
     "powerpc64-unknown-linux-gnu",
     "powerpc64le-unknown-linux-gnu",
     "s390x-unknown-linux-gnu",