Auto merge of #71272 - jclulow:illumos-x86-ci, r=pietroalbini

build dist for x86_64-unknown-illumos

This change creates a new Docker image, "dist-x86_64-illumos", and sets
things up to build the full set of "dist" packages for illumos hosts, so
that illumos users can use "rustup" to install packages.  It also
adjusts the manifest builder to expect complete toolchains for this
platform.

1 files changed, 177 insertions, 0 deletions

diff --git a/src/ci/docker/scripts/illumos-toolchain.sh b/src/ci/docker/scripts/illumos-toolchain.sh
new file mode 100644
index 00000000000..8cb57126579
--- /dev/null
+++ b/src/ci/docker/scripts/illumos-toolchain.sh
@@ -0,0 +1,177 @@
+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+set -o xtrace
+
+ARCH="$1"
+PHASE="$2"
+
+JOBS="$(getconf _NPROCESSORS_ONLN)"
+
+case "$ARCH" in
+x86_64)
+        SYSROOT_MACH='i386'
+        ;;
+*)
+        printf 'ERROR: unknown architecture: %s\n' "$ARCH"
+        exit 1
+esac
+
+BUILD_TARGET="$ARCH-sun-solaris2.10"
+
+#
+# The illumos and the Solaris build both use the same GCC-level host triple,
+# though different versions of GCC are used and with different configure
+# options.  To ensure as little accidental cross-pollination as possible, we
+# build the illumos toolchain in a specific directory tree and just symlink the
+# expected tools into /usr/local/bin at the end.  We omit /usr/local/bin from
+# PATH here for similar reasons.
+#
+PREFIX="/opt/illumos/$ARCH"
+export PATH="$PREFIX/bin:/usr/bin:/bin:/usr/sbin:/sbin"
+
+#
+# NOTE: The compiler version selected here is more specific than might appear.
+# GCC 7.X releases do not appear to cross-compile correctly for Solaris
+# targets, at least insofar as they refuse to enable TLS in libstdc++.  When
+# changing the GCC version in future, one must carefully verify that TLS is
+# enabled in all of the static libraries we intend to include in output
+# binaries.
+#
+GCC_VERSION='8.4.0'
+GCC_SUM='e30a6e52d10e1f27ed55104ad233c30bd1e99cfb5ff98ab022dc941edd1b2dd4'
+GCC_BASE="gcc-$GCC_VERSION"
+GCC_TAR="gcc-$GCC_VERSION.tar.xz"
+GCC_URL="https://ftp.gnu.org/gnu/gcc/$GCC_BASE/$GCC_TAR"
+
+SYSROOT_VER='20181213-de6af22ae73b-v1'
+SYSROOT_SUM='ee792d956dfa6967453cebe9286a149143290d296a8ce4b8a91d36bea89f8112'
+SYSROOT_TAR="illumos-sysroot-$SYSROOT_MACH-$SYSROOT_VER.tar.gz"
+SYSROOT_URL='https://github.com/illumos/sysroot/releases/download/'
+SYSROOT_URL+="$SYSROOT_VER/$SYSROOT_TAR"
+SYSROOT_DIR="$PREFIX/sysroot"
+
+BINUTILS_VERSION='2.25.1'
+BINUTILS_SUM='b5b14added7d78a8d1ca70b5cb75fef57ce2197264f4f5835326b0df22ac9f22'
+BINUTILS_BASE="binutils-$BINUTILS_VERSION"
+BINUTILS_TAR="$BINUTILS_BASE.tar.bz2"
+BINUTILS_URL="https://ftp.gnu.org/gnu/binutils/$BINUTILS_TAR"
+
+
+download_file() {
+        local file="$1"
+        local url="$2"
+        local sum="$3"
+
+        while :; do
+                if [[ -f "$file" ]]; then
+                        if ! h="$(sha256sum "$file" | awk '{ print $1 }')"; then
+                                printf 'ERROR: reading hash\n' >&2
+                                exit 1
+                        fi
+
+                        if [[ "$h" == "$sum" ]]; then
+                                return 0
+                        fi
+
+                        printf 'WARNING: hash mismatch: %s != expected %s\n' \
+                            "$h" "$sum" >&2
+                        rm -f "$file"
+                fi
+
+                printf 'Downloading: %s\n' "$url"
+                if ! curl -f -L -o "$file" "$url"; then
+                        rm -f "$file"
+                        sleep 1
+                fi
+        done
+}
+
+
+case "$PHASE" in
+sysroot)
+        download_file "/tmp/$SYSROOT_TAR" "$SYSROOT_URL" "$SYSROOT_SUM"
+        mkdir -p "$SYSROOT_DIR"
+        cd "$SYSROOT_DIR"
+        tar -xzf "/tmp/$SYSROOT_TAR"
+        rm -f "/tmp/$SYSROOT_TAR"
+        ;;
+
+binutils)
+        download_file "/tmp/$BINUTILS_TAR" "$BINUTILS_URL" "$BINUTILS_SUM"
+        mkdir -p /ws/src/binutils
+        cd /ws/src/binutils
+        tar -xjf "/tmp/$BINUTILS_TAR"
+        rm -f "/tmp/$BINUTILS_TAR"
+
+        mkdir -p /ws/build/binutils
+        cd /ws/build/binutils
+        "/ws/src/binutils/$BINUTILS_BASE/configure" \
+            --prefix="$PREFIX" \
+            --target="$BUILD_TARGET" \
+            --program-prefix="$ARCH-illumos-" \
+            --with-sysroot="$SYSROOT_DIR"
+
+        make -j "$JOBS"
+
+        mkdir -p "$PREFIX"
+        make install
+
+        cd /
+        rm -rf /ws/src/binutils /ws/build/binutils
+        ;;
+
+gcc)
+        download_file "/tmp/$GCC_TAR" "$GCC_URL" "$GCC_SUM"
+        mkdir -p /ws/src/gcc
+        cd /ws/src/gcc
+        tar -xJf "/tmp/$GCC_TAR"
+        rm -f "/tmp/$GCC_TAR"
+
+        mkdir -p /ws/build/gcc
+        cd /ws/build/gcc
+        export CFLAGS='-fPIC'
+        export CXXFLAGS='-fPIC'
+        export CXXFLAGS_FOR_TARGET='-fPIC'
+        export CFLAGS_FOR_TARGET='-fPIC'
+        "/ws/src/gcc/$GCC_BASE/configure" \
+            --prefix="$PREFIX" \
+            --target="$BUILD_TARGET" \
+            --program-prefix="$ARCH-illumos-" \
+            --with-sysroot="$SYSROOT_DIR" \
+            --with-gnu-as \
+            --with-gnu-ld \
+            --disable-nls \
+            --disable-libgomp \
+            --disable-libquadmath \
+            --disable-libssp \
+            --disable-libvtv \
+            --disable-libcilkrts \
+            --disable-libada \
+            --disable-libsanitizer \
+            --disable-libquadmath-support \
+            --disable-shared \
+            --enable-tls
+
+        make -j "$JOBS"
+
+        mkdir -p "$PREFIX"
+        make install
+
+        #
+        # Link toolchain commands into /usr/local/bin so that cmake and others
+        # can find them:
+        #
+        (cd "$PREFIX/bin" && ls -U) | grep "^$ARCH-illumos-" |
+            xargs -t -I% ln -s "$PREFIX/bin/%" '/usr/local/bin/'
+
+        cd /
+        rm -rf /ws/src/gcc /ws/build/gcc
+        ;;
+
+*)
+        printf 'ERROR: unknown phase "%s"\n' "$PHASE" >&2
+        exit 100
+        ;;
+esac