travis: move IBM backwards in time

Using Ubuntu's cross-toolchains for powerpc* and s390x meant they were
depending on glibc symbols from Ubuntu 16.04. And if that host is ever
updated to a new release, the toolchains would raise the bar too.

This switches powerpc, powerpc64, and s390x to use crosstool-ng
toolchains, configured approximately like RHEL6 with kernel 2.6.32 and
glibc 2.12. This ABI level should also be compatible with Debian 7
(wheezy) and Ubuntu 12.04 (precise).

For powerpc64le, the challenge was that only glibc-2.19 officially added
support, but RHEL7 backported those changes to glibc-2.17. The backport
patches are complex and numerous, so instead of trying to push those
into crosstool-ng, this just uses glibc binaries directly from CentOS 7
and builds the toolchain manually.

This is ported from rust-lang/rust-buildbot#149.

r? @alexcrichton

src/ci/docker/README.md

@@ -143,3 +143,58 @@ For targets: `aarch64-unknown-linux-gnu`
 - C-library > glibc version = 2.17 -- aarch64 support was introduced in this version
 - C compiler > gcc version = 5.2.0
 - C compiler > C++ = ENABLE -- to cross compile LLVM
+
+## `powerpc-linux-gnu.config`
+
+For targets: `powerpc-unknown-linux-gnu`
+
+- Path and misc options > Prefix directory = /x-tools/${CT\_TARGET}
+- Path and misc options > Patches origin = Bundled, then local
+- Path and misc options > Local patch directory = /tmp/patches
+- Target options > Target Architecture = powerpc
+- Target options > Emit assembly for CPU = power4 -- (+)
+- Target options > Tune for CPU = power6 -- (+)
+- Operating System > Target OS = linux
+- Operating System > Linux kernel version = 2.6.32.68 -- ~RHEL6 kernel
+- C-library > glibc version = 2.12.2 -- ~RHEL6 glibc
+- C compiler > gcc version = 4.9.3
+- C compiler > Core gcc extra config = --with-cpu-32=power4 --with-cpu=default32 -- (+)
+- C compiler > gcc extra config = --with-cpu-32=power4 --with-cpu=default32 -- (+)
+- C compiler > C++ = ENABLE -- to cross compile LLVM
+
+(+) These CPU options match the configuration of the toolchains in RHEL6.
+
+## `powerpc64-linux-gnu.config`
+
+For targets: `powerpc64-unknown-linux-gnu`
+
+- Path and misc options > Prefix directory = /x-tools/${CT\_TARGET}
+- Path and misc options > Patches origin = Bundled, then local
+- Path and misc options > Local patch directory = /tmp/patches
+- Target options > Target Architecture = powerpc
+- Target options > Bitness = 64-bit
+- Target options > Emit assembly for CPU = power4 -- (+)
+- Target options > Tune for CPU = power6 -- (+)
+- Operating System > Target OS = linux
+- Operating System > Linux kernel version = 2.6.32.68 -- ~RHEL6 kernel
+- C-library > glibc version = 2.12.2 -- ~RHEL6 glibc
+- C compiler > gcc version = 4.9.3
+- C compiler > C++ = ENABLE -- to cross compile LLVM
+
+(+) These CPU options match the configuration of the toolchains in RHEL6.
+
+## `s390x-linux-gnu.config`
+
+For targets: `s390x-unknown-linux-gnu`
+
+- Path and misc options > Prefix directory = /x-tools/${CT\_TARGET}
+- Path and misc options > Patches origin = Bundled, then local
+- Path and misc options > Local patch directory = /build/patches
+- Target options > Target Architecture = s390
+- Target options > Bitness = 64-bit
+- Operating System > Target OS = linux
+- Operating System > Linux kernel version = 2.6.32.68 -- ~RHEL6 kernel
+- C-library > glibc version = 2.12.2 -- ~RHEL6 glibc
+- C compiler > gcc version = 4.9.3
+- C compiler > gcc extra config = --with-arch=z10 -- LLVM's minimum support
+- C compiler > C++ = ENABLE -- to cross compile LLVM

src/ci/docker/dist-powerpc-linux/Dockerfile

 FROM ubuntu:16.04
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
+  automake \
+  bison \
+  bzip2 \
+  ca-certificates \
+  cmake \
+  curl \
+  file \
+  flex \
   g++ \
+  gawk \
+  gdb \
+  git \
+  gperf \
+  help2man \
+  libncurses-dev \
+  libtool-bin \
   make \
-  file \
-  curl \
-  ca-certificates \
+  patch \
   python2.7 \
-  git \
-  cmake \
   sudo \
-  gdb \
-  xz-utils \
-  g++-powerpc-linux-gnu
+  texinfo \
+  wget \
+  xz-utils
 
 ENV SCCACHE_DIGEST=7237e38e029342fa27b7ac25412cb9d52554008b12389727320bd533fd7f05b6a96d55485f305caf95e5c8f5f97c3313e10012ccad3e752aba2518f3522ba783
 RUN curl -L https://api.pub.build.mozilla.org/tooltool/sha512/$SCCACHE_DIGEST | \
@@ -23,6 +34,43 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
     rm dumb-init_*.deb
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
+# Ubuntu 16.04 (this contianer) ships with make 4, but something in the
+# toolchains we build below chokes on that, so go back to make 3
+RUN curl https://ftp.gnu.org/gnu/make/make-3.81.tar.gz | tar xzf - && \
+      cd make-3.81 && \
+      ./configure --prefix=/usr && \
+      make && \
+      make install && \
+      cd .. && \
+      rm -rf make-3.81
+
+RUN curl http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.22.0.tar.bz2 | \
+      tar xjf - && \
+      cd crosstool-ng && \
+      ./configure --prefix=/usr/local && \
+      make -j$(nproc) && \
+      make install && \
+      cd .. && \
+      rm -rf crosstool-ng
+
+RUN groupadd -r rustbuild && useradd -m -r -g rustbuild rustbuild
+RUN mkdir /x-tools && chown rustbuild:rustbuild /x-tools
+USER rustbuild
+WORKDIR /tmp
+
+COPY patches/ /tmp/patches/
+COPY powerpc-linux-gnu.config build-powerpc-toolchain.sh /tmp/
+RUN ./build-powerpc-toolchain.sh
+
+USER root
+
+ENV PATH=$PATH:/x-tools/powerpc-unknown-linux-gnu/bin
+
+ENV \
+    CC_powerpc_unknown_linux_gnu=powerpc-unknown-linux-gnu-gcc \
+    AR_powerpc_unknown_linux_gnu=powerpc-unknown-linux-gnu-ar \
+    CXX_powerpc_unknown_linux_gnu=powerpc-unknown-linux-gnu-g++
+
 ENV HOSTS=powerpc-unknown-linux-gnu
 
 ENV RUST_CONFIGURE_ARGS --host=$HOSTS --enable-extended

src/ci/docker/dist-powerpc-linux/build-powerpc-toolchain.sh

+#!/bin/bash
+# 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.
+
+set -ex
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  $@ &> /tmp/build.log
+  rm /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  set -x
+}
+
+mkdir build
+cd build
+cp ../powerpc-linux-gnu.config .config
+hide_output ct-ng build
+cd ..
+rm -rf build

src/ci/docker/dist-powerpc-linux/patches/glibc/2.12.2/001-PowerPC-Remove-unnecessary-mnew-mnemonics.patch

+From b3563932f85d60bb0d38b0a5f3b8f4abc133f890 Mon Sep 17 00:00:00 2001
+From: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
+Date: Thu, 1 Nov 2012 18:00:06 -0500
+Subject: [PATCH] PowerPC: Remove unnecessary -mnew-mnemonics.
+
+---
+ sysdeps/powerpc/Makefile | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/sysdeps/powerpc/Makefile b/sysdeps/powerpc/Makefile
+index 79dd6fa976d5..7442b6709ad1 100644
+--- a/sysdeps/powerpc/Makefile
++++ b/sysdeps/powerpc/Makefile
+@@ -1,7 +1,3 @@
+-# We always want to use the new mnemonic syntax even if we are on a RS6000
+-# machine.
+-+cflags += -mnew-mnemonics
+-
+ ifeq ($(subdir),gmon)
+ sysdep_routines += ppc-mcount
+ endif
+-- 
+2.9.3
+

src/ci/docker/dist-powerpc-linux/powerpc-linux-gnu.config

+#
+# Automatically generated file; DO NOT EDIT.
+# Crosstool-NG Configuration
+#
+CT_CONFIGURE_has_make381=y
+CT_CONFIGURE_has_xz=y
+CT_MODULES=y
+
+#
+# Paths and misc options
+#
+
+#
+# crosstool-NG behavior
+#
+# CT_OBSOLETE is not set
+# CT_EXPERIMENTAL is not set
+# CT_DEBUG_CT is not set
+
+#
+# Paths
+#
+CT_LOCAL_TARBALLS_DIR=""
+CT_WORK_DIR="${CT_TOP_DIR}/.build"
+CT_PREFIX_DIR="/x-tools/${CT_TARGET}"
+CT_INSTALL_DIR="${CT_PREFIX_DIR}"
+CT_RM_RF_PREFIX_DIR=y
+CT_REMOVE_DOCS=y
+CT_INSTALL_DIR_RO=y
+CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
+# CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES is not set
+
+#
+# Downloading
+#
+# CT_FORBID_DOWNLOAD is not set
+# CT_FORCE_DOWNLOAD is not set
+CT_CONNECT_TIMEOUT=10
+# CT_ONLY_DOWNLOAD is not set
+# CT_USE_MIRROR is not set
+
+#
+# Extracting
+#
+# CT_FORCE_EXTRACT is not set
+CT_OVERIDE_CONFIG_GUESS_SUB=y
+# CT_ONLY_EXTRACT is not set
+# CT_PATCH_BUNDLED is not set
+# CT_PATCH_LOCAL is not set
+CT_PATCH_BUNDLED_LOCAL=y
+# CT_PATCH_LOCAL_BUNDLED is not set
+# CT_PATCH_BUNDLED_FALLBACK_LOCAL is not set
+# CT_PATCH_LOCAL_FALLBACK_BUNDLED is not set
+# CT_PATCH_NONE is not set
+CT_PATCH_ORDER="bundled,local"
+CT_PATCH_USE_LOCAL=y
+CT_LOCAL_PATCH_DIR="/tmp/patches"
+
+#
+# Build behavior
+#
+CT_PARALLEL_JOBS=0
+CT_LOAD=""
+CT_USE_PIPES=y
+CT_EXTRA_CFLAGS_FOR_BUILD=""
+CT_EXTRA_LDFLAGS_FOR_BUILD=""
+CT_EXTRA_CFLAGS_FOR_HOST=""
+CT_EXTRA_LDFLAGS_FOR_HOST=""
+# CT_CONFIG_SHELL_SH is not set
+# CT_CONFIG_SHELL_ASH is not set
+CT_CONFIG_SHELL_BASH=y
+# CT_CONFIG_SHELL_CUSTOM is not set
+CT_CONFIG_SHELL="${bash}"
+
+#
+# Logging
+#
+# CT_LOG_ERROR is not set
+# CT_LOG_WARN is not set
+CT_LOG_INFO=y
+# CT_LOG_EXTRA is not set
+# CT_LOG_ALL is not set
+# CT_LOG_DEBUG is not set
+CT_LOG_LEVEL_MAX="INFO"
+# CT_LOG_SEE_TOOLS_WARN is not set
+CT_LOG_PROGRESS_BAR=y
+CT_LOG_TO_FILE=y
+CT_LOG_FILE_COMPRESS=y
+
+#
+# Target options
+#
+CT_ARCH="powerpc"
+CT_ARCH_SUPPORTS_BOTH_ENDIAN=y
+CT_ARCH_SUPPORTS_32=y
+CT_ARCH_SUPPORTS_64=y
+CT_ARCH_SUPPORTS_WITH_ABI=y
+CT_ARCH_SUPPORTS_WITH_CPU=y
+CT_ARCH_SUPPORTS_WITH_TUNE=y
+CT_ARCH_SUPPORTS_WITH_FLOAT=y
+CT_ARCH_DEFAULT_BE=y
+CT_ARCH_DEFAULT_32=y
+CT_ARCH_ABI=""
+CT_ARCH_CPU="power4"
+CT_ARCH_TUNE="power6"
+CT_ARCH_BE=y
+# CT_ARCH_LE is not set
+CT_ARCH_32=y
+# CT_ARCH_64 is not set
+CT_ARCH_BITNESS=32
+# CT_ARCH_FLOAT_HW is not set
+# CT_ARCH_FLOAT_SW is not set
+CT_TARGET_CFLAGS=""
+CT_TARGET_LDFLAGS=""
+# CT_ARCH_alpha is not set
+# CT_ARCH_arm is not set
+# CT_ARCH_avr is not set
+# CT_ARCH_m68k is not set
+# CT_ARCH_mips is not set
+# CT_ARCH_nios2 is not set
+CT_ARCH_powerpc=y
+# CT_ARCH_s390 is not set
+# CT_ARCH_sh is not set
+# CT_ARCH_sparc is not set
+# CT_ARCH_x86 is not set
+# CT_ARCH_xtensa is not set
+CT_ARCH_alpha_AVAILABLE=y
+CT_ARCH_arm_AVAILABLE=y
+CT_ARCH_avr_AVAILABLE=y
+CT_ARCH_m68k_AVAILABLE=y
+CT_ARCH_microblaze_AVAILABLE=y
+CT_ARCH_mips_AVAILABLE=y
+CT_ARCH_nios2_AVAILABLE=y
+CT_ARCH_powerpc_AVAILABLE=y
+CT_ARCH_s390_AVAILABLE=y
+CT_ARCH_sh_AVAILABLE=y
+CT_ARCH_sparc_AVAILABLE=y
+CT_ARCH_x86_AVAILABLE=y
+CT_ARCH_xtensa_AVAILABLE=y
+CT_ARCH_SUFFIX=""
+
+#
+# Generic target options
+#
+# CT_MULTILIB is not set
+CT_ARCH_USE_MMU=y
+CT_ARCH_ENDIAN="big"
+
+#
+# Target optimisations
+#
+CT_ARCH_FLOAT_AUTO=y
+CT_ARCH_FLOAT="auto"
+
+#
+# powerpc other options
+#
+CT_ARCH_powerpc_ABI=""
+CT_ARCH_powerpc_ABI_DEFAULT=y
+# CT_ARCH_powerpc_ABI_SPE is not set
+
+#
+# Toolchain options
+#
+
+#
+# General toolchain options
+#
+CT_FORCE_SYSROOT=y
+CT_USE_SYSROOT=y
+CT_SYSROOT_NAME="sysroot"
+CT_SYSROOT_DIR_PREFIX=""
+CT_WANTS_STATIC_LINK=y
+# CT_STATIC_TOOLCHAIN is not set
+CT_TOOLCHAIN_PKGVERSION=""
+CT_TOOLCHAIN_BUGURL=""
+
+#
+# Tuple completion and aliasing
+#
+CT_TARGET_VENDOR="unknown"
+CT_TARGET_ALIAS_SED_EXPR=""
+CT_TARGET_ALIAS=""
+
+#
+# Toolchain type
+#
+CT_CROSS=y
+# CT_CANADIAN is not set
+CT_TOOLCHAIN_TYPE="cross"
+
+#
+# Build system
+#
+CT_BUILD=""
+CT_BUILD_PREFIX=""
+CT_BUILD_SUFFIX=""
+
+#
+# Misc options
+#
+# CT_TOOLCHAIN_ENABLE_NLS is not set
+
+#
+# Operating System
+#
+CT_KERNEL_SUPPORTS_SHARED_LIBS=y
+CT_KERNEL="linux"
+CT_KERNEL_VERSION="2.6.32.68"
+# CT_KERNEL_bare_metal is not set
+CT_KERNEL_linux=y
+CT_KERNEL_bare_metal_AVAILABLE=y
+CT_KERNEL_linux_AVAILABLE=y
+# CT_KERNEL_V_4_3 is not set
+# CT_KERNEL_V_4_2 is not set
+# CT_KERNEL_V_4_1 is not set
+# CT_KERNEL_V_3_18 is not set
+# CT_KERNEL_V_3_14 is not set
+# CT_KERNEL_V_3_12 is not set
+# CT_KERNEL_V_3_10 is not set
+# CT_KERNEL_V_3_4 is not set
+# CT_KERNEL_V_3_2 is not set
+CT_KERNEL_V_2_6_32=y
+# CT_KERNEL_LINUX_CUSTOM is not set
+CT_KERNEL_windows_AVAILABLE=y
+
+#
+# Common kernel options
+#
+CT_SHARED_LIBS=y
+
+#
+# linux other options
+#
+CT_KERNEL_LINUX_VERBOSITY_0=y
+# CT_KERNEL_LINUX_VERBOSITY_1 is not set
+# CT_KERNEL_LINUX_VERBOSITY_2 is not set
+CT_KERNEL_LINUX_VERBOSE_LEVEL=0
+CT_KERNEL_LINUX_INSTALL_CHECK=y
+
+#
+# Binary utilities
+#
+CT_ARCH_BINFMT_ELF=y
+CT_BINUTILS="binutils"
+CT_BINUTILS_binutils=y
+
+#
+# GNU binutils
+#
+# CT_CC_BINUTILS_SHOW_LINARO is not set
+CT_BINUTILS_V_2_25_1=y
+# CT_BINUTILS_V_2_25 is not set
+# CT_BINUTILS_V_2_24 is not set
+# CT_BINUTILS_V_2_23_2 is not set
+# CT_BINUTILS_V_2_23_1 is not set
+# CT_BINUTILS_V_2_22 is not set
+# CT_BINUTILS_V_2_21_53 is not set
+# CT_BINUTILS_V_2_21_1a is not set
+# CT_BINUTILS_V_2_20_1a is not set
+# CT_BINUTILS_V_2_19_1a is not set
+# CT_BINUTILS_V_2_18a is not set
+CT_BINUTILS_VERSION="2.25.1"
+CT_BINUTILS_2_25_1_or_later=y
+CT_BINUTILS_2_25_or_later=y
+CT_BINUTILS_2_24_or_later=y
+CT_BINUTILS_2_23_or_later=y
+CT_BINUTILS_2_22_or_later=y
+CT_BINUTILS_2_21_or_later=y
+CT_BINUTILS_2_20_or_later=y
+CT_BINUTILS_2_19_or_later=y
+CT_BINUTILS_2_18_or_later=y
+CT_BINUTILS_HAS_HASH_STYLE=y
+CT_BINUTILS_HAS_GOLD=y
+CT_BINUTILS_HAS_PLUGINS=y
+CT_BINUTILS_HAS_PKGVERSION_BUGURL=y
+CT_BINUTILS_FORCE_LD_BFD=y
+CT_BINUTILS_LINKER_LD=y
+CT_BINUTILS_LINKERS_LIST="ld"
+CT_BINUTILS_LINKER_DEFAULT="bfd"
+# CT_BINUTILS_PLUGINS is not set
+CT_BINUTILS_EXTRA_CONFIG_ARRAY=""
+# CT_BINUTILS_FOR_TARGET is not set
+
+#
+# binutils other options
+#
+
+#
+# C-library
+#
+CT_LIBC="glibc"
+CT_LIBC_VERSION="2.12.2"
+CT_LIBC_glibc=y
+# CT_LIBC_musl is not set
+# CT_LIBC_uClibc is not set
+CT_LIBC_avr_libc_AVAILABLE=y
+CT_LIBC_glibc_AVAILABLE=y
+CT_THREADS="nptl"
+# CT_CC_GLIBC_SHOW_LINARO is not set
+# CT_LIBC_GLIBC_V_2_22 is not set
+# CT_LIBC_GLIBC_V_2_21 is not set
+# CT_LIBC_GLIBC_V_2_20 is not set
+# CT_LIBC_GLIBC_V_2_19 is not set
+# CT_LIBC_GLIBC_V_2_18 is not set
+# CT_LIBC_GLIBC_V_2_17 is not set
+# CT_LIBC_GLIBC_V_2_16_0 is not set
+# CT_LIBC_GLIBC_V_2_15 is not set
+# CT_LIBC_GLIBC_V_2_14_1 is not set
+# CT_LIBC_GLIBC_V_2_14 is not set
+# CT_LIBC_GLIBC_V_2_13 is not set
+CT_LIBC_GLIBC_V_2_12_2=y
+# CT_LIBC_GLIBC_V_2_12_1 is not set
+# CT_LIBC_GLIBC_V_2_11_1 is not set
+# CT_LIBC_GLIBC_V_2_11 is not set
+# CT_LIBC_GLIBC_V_2_10_1 is not set
+# CT_LIBC_GLIBC_V_2_9 is not set
+# CT_LIBC_GLIBC_V_2_8 is not set
+CT_LIBC_mingw_AVAILABLE=y
+CT_LIBC_musl_AVAILABLE=y
+CT_LIBC_newlib_AVAILABLE=y
+CT_LIBC_none_AVAILABLE=y
+CT_LIBC_uClibc_AVAILABLE=y
+CT_LIBC_SUPPORT_THREADS_ANY=y
+CT_LIBC_SUPPORT_THREADS_NATIVE=y
+
+#
+# Common C library options
+#
+CT_THREADS_NATIVE=y
+CT_LIBC_XLDD=y
+
+#
+# glibc other options
+#
+CT_LIBC_GLIBC_PORTS_EXTERNAL=y
+CT_LIBC_glibc_familly=y
+CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY=""
+CT_LIBC_GLIBC_CONFIGPARMS=""
+CT_LIBC_GLIBC_EXTRA_CFLAGS=""
+CT_LIBC_EXTRA_CC_ARGS=""
+# CT_LIBC_DISABLE_VERSIONING is not set
+CT_LIBC_OLDEST_ABI=""
+CT_LIBC_GLIBC_FORCE_UNWIND=y
+# CT_LIBC_GLIBC_USE_PORTS is not set
+CT_LIBC_ADDONS_LIST=""
+# CT_LIBC_LOCALES is not set
+# CT_LIBC_GLIBC_KERNEL_VERSION_NONE is not set
+CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS=y
+# CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN is not set
+CT_LIBC_GLIBC_MIN_KERNEL="2.6.32.68"
+
+#
+# C compiler
+#
+CT_CC="gcc"
+CT_CC_CORE_PASSES_NEEDED=y
+CT_CC_CORE_PASS_1_NEEDED=y
+CT_CC_CORE_PASS_2_NEEDED=y
+CT_CC_gcc=y
+# CT_CC_GCC_SHOW_LINARO is not set
+# CT_CC_GCC_V_5_2_0 is not set
+CT_CC_GCC_V_4_9_3=y
+# CT_CC_GCC_V_4_8_5 is not set
+# CT_CC_GCC_V_4_7_4 is not set
+# CT_CC_GCC_V_4_6_4 is not set
+# CT_CC_GCC_V_4_5_4 is not set
+# CT_CC_GCC_V_4_4_7 is not set
+# CT_CC_GCC_V_4_3_6 is not set
+# CT_CC_GCC_V_4_2_4 is not set
+CT_CC_GCC_4_2_or_later=y
+CT_CC_GCC_4_3_or_later=y
+CT_CC_GCC_4_4_or_later=y
+CT_CC_GCC_4_5_or_later=y
+CT_CC_GCC_4_6_or_later=y
+CT_CC_GCC_4_7_or_later=y
+CT_CC_GCC_4_8_or_later=y
+CT_CC_GCC_4_9=y
+CT_CC_GCC_4_9_or_later=y
+CT_CC_GCC_HAS_GRAPHITE=y
+CT_CC_GCC_USE_GRAPHITE=y
+CT_CC_GCC_HAS_LTO=y
+CT_CC_GCC_USE_LTO=y
+CT_CC_GCC_HAS_PKGVERSION_BUGURL=y
+CT_CC_GCC_HAS_BUILD_ID=y
+CT_CC_GCC_HAS_LNK_HASH_STYLE=y
+CT_CC_GCC_USE_GMP_MPFR=y
+CT_CC_GCC_USE_MPC=y
+CT_CC_GCC_HAS_LIBQUADMATH=y
+CT_CC_GCC_HAS_LIBSANITIZER=y
+CT_CC_GCC_VERSION="4.9.3"
+# CT_CC_LANG_FORTRAN is not set
+CT_CC_GCC_ENABLE_CXX_FLAGS=""
+CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY="--with-cpu-32=power4 --with-cpu=default32"
+CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-cpu-32=power4 --with-cpu=default32"
+CT_CC_GCC_EXTRA_ENV_ARRAY=""
+CT_CC_GCC_STATIC_LIBSTDCXX=y
+# CT_CC_GCC_SYSTEM_ZLIB is not set
+
+#
+# Optimisation features
+#
+
+#
+# Settings for libraries running on target
+#
+CT_CC_GCC_ENABLE_TARGET_OPTSPACE=y
+# CT_CC_GCC_LIBMUDFLAP is not set
+# CT_CC_GCC_LIBGOMP is not set
+# CT_CC_GCC_LIBSSP is not set
+# CT_CC_GCC_LIBQUADMATH is not set
+# CT_CC_GCC_LIBSANITIZER is not set
+
+#
+# Misc. obscure options.
+#
+CT_CC_CXA_ATEXIT=y
+# CT_CC_GCC_DISABLE_PCH is not set
+CT_CC_GCC_SJLJ_EXCEPTIONS=m
+CT_CC_GCC_LDBL_128=m
+# CT_CC_GCC_BUILD_ID is not set
+CT_CC_GCC_LNK_HASH_STYLE_DEFAULT=y
+# CT_CC_GCC_LNK_HASH_STYLE_SYSV is not set
+# CT_CC_GCC_LNK_HASH_STYLE_GNU is not set
+# CT_CC_GCC_LNK_HASH_STYLE_BOTH is not set
+CT_CC_GCC_LNK_HASH_STYLE=""
+CT_CC_GCC_DEC_FLOAT_AUTO=y
+# CT_CC_GCC_DEC_FLOAT_BID is not set
+# CT_CC_GCC_DEC_FLOAT_DPD is not set
+# CT_CC_GCC_DEC_FLOATS_NO is not set
+CT_CC_SUPPORT_CXX=y
+CT_CC_SUPPORT_FORTRAN=y
+CT_CC_SUPPORT_JAVA=y
+CT_CC_SUPPORT_ADA=y
+CT_CC_SUPPORT_OBJC=y
+CT_CC_SUPPORT_OBJCXX=y
+CT_CC_SUPPORT_GOLANG=y
+
+#
+# Additional supported languages:
+#
+CT_CC_LANG_CXX=y
+# CT_CC_LANG_JAVA is not set
+
+#
+# Debug facilities
+#
+# CT_DEBUG_dmalloc is not set
+# CT_DEBUG_duma is not set
+# CT_DEBUG_gdb is not set
+# CT_DEBUG_ltrace is not set
+# CT_DEBUG_strace is not set
+
+#
+# Companion libraries
+#
+CT_COMPLIBS_NEEDED=y
+CT_LIBICONV_NEEDED=y
+CT_GETTEXT_NEEDED=y
+CT_GMP_NEEDED=y
+CT_MPFR_NEEDED=y
+CT_ISL_NEEDED=y
+CT_CLOOG_NEEDED=y
+CT_MPC_NEEDED=y
+CT_COMPLIBS=y
+CT_LIBICONV=y
+CT_GETTEXT=y
+CT_GMP=y
+CT_MPFR=y
+CT_ISL=y
+CT_CLOOG=y
+CT_MPC=y
+CT_LIBICONV_V_1_14=y
+CT_LIBICONV_VERSION="1.14"
+CT_GETTEXT_V_0_19_6=y
+CT_GETTEXT_VERSION="0.19.6"
+CT_GMP_V_6_0_0=y
+# CT_GMP_V_5_1_3 is not set
+# CT_GMP_V_5_1_1 is not set
+# CT_GMP_V_5_0_2 is not set
+# CT_GMP_V_5_0_1 is not set
+# CT_GMP_V_4_3_2 is not set
+# CT_GMP_V_4_3_1 is not set
+# CT_GMP_V_4_3_0 is not set
+CT_GMP_5_0_2_or_later=y
+CT_GMP_VERSION="6.0.0a"
+CT_MPFR_V_3_1_3=y
+# CT_MPFR_V_3_1_2 is not set
+# CT_MPFR_V_3_1_0 is not set
+# CT_MPFR_V_3_0_1 is not set
+# CT_MPFR_V_3_0_0 is not set
+# CT_MPFR_V_2_4_2 is not set
+# CT_MPFR_V_2_4_1 is not set
+# CT_MPFR_V_2_4_0 is not set
+CT_MPFR_VERSION="3.1.3"
+CT_ISL_V_0_14=y
+CT_ISL_V_0_14_or_later=y
+CT_ISL_V_0_12_or_later=y
+CT_ISL_VERSION="0.14"
+CT_CLOOG_V_0_18_4=y
+# CT_CLOOG_V_0_18_1 is not set
+# CT_CLOOG_V_0_18_0 is not set
+CT_CLOOG_VERSION="0.18.4"
+CT_CLOOG_0_18_4_or_later=y
+CT_CLOOG_0_18_or_later=y
+CT_MPC_V_1_0_3=y
+# CT_MPC_V_1_0_2 is not set
+# CT_MPC_V_1_0_1 is not set
+# CT_MPC_V_1_0 is not set
+# CT_MPC_V_0_9 is not set
+# CT_MPC_V_0_8_2 is not set
+# CT_MPC_V_0_8_1 is not set
+# CT_MPC_V_0_7 is not set
+CT_MPC_VERSION="1.0.3"
+
+#
+# Companion libraries common options
+#
+# CT_COMPLIBS_CHECK is not set
+
+#
+# Companion tools
+#
+
+#
+# READ HELP before you say 'Y' below !!!
+#
+# CT_COMP_TOOLS is not set

src/ci/docker/dist-powerpc64-linux/Dockerfile

 FROM ubuntu:16.04
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
+  automake \
+  bison \
+  bzip2 \
+  ca-certificates \
+  cmake \
+  curl \
+  file \
+  flex \
   g++ \
+  gawk \
+  gdb \
+  git \
+  gperf \
+  help2man \
+  libncurses-dev \
+  libtool-bin \
   make \
-  file \
-  curl \
-  ca-certificates \
+  patch \
   python2.7 \
-  git \
-  cmake \
   sudo \
-  gdb \
-  xz-utils \
-  g++-powerpc64-linux-gnu \
-  g++-powerpc64le-linux-gnu
+  texinfo \
+  wget \
+  xz-utils
 
 ENV SCCACHE_DIGEST=7237e38e029342fa27b7ac25412cb9d52554008b12389727320bd533fd7f05b6a96d55485f305caf95e5c8f5f97c3313e10012ccad3e752aba2518f3522ba783
 RUN curl -L https://api.pub.build.mozilla.org/tooltool/sha512/$SCCACHE_DIGEST | \
@@ -24,10 +34,49 @@ RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-ini
     rm dumb-init_*.deb
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
+# Ubuntu 16.04 (this contianer) ships with make 4, but something in the
+# toolchains we build below chokes on that, so go back to make 3
+RUN curl https://ftp.gnu.org/gnu/make/make-3.81.tar.gz | tar xzf - && \
+      cd make-3.81 && \
+      ./configure --prefix=/usr && \
+      make && \
+      make install && \
+      cd .. && \
+      rm -rf make-3.81
+
+RUN curl http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.22.0.tar.bz2 | \
+      tar xjf - && \
+      cd crosstool-ng && \
+      ./configure --prefix=/usr/local && \
+      make -j$(nproc) && \
+      make install && \
+      cd .. && \
+      rm -rf crosstool-ng
+
+RUN groupadd -r rustbuild && useradd -m -r -g rustbuild rustbuild
+RUN mkdir /x-tools && chown rustbuild:rustbuild /x-tools
+USER rustbuild
+WORKDIR /tmp
+
+COPY patches/ /tmp/patches/
+COPY powerpc64-linux-gnu.config build-powerpc64-toolchain.sh /tmp/
+RUN ./build-powerpc64-toolchain.sh
+
+USER root
+
+RUN apt-get install -y --no-install-recommends rpm2cpio cpio
+COPY build-powerpc64le-toolchain.sh /tmp/
+RUN ./build-powerpc64le-toolchain.sh
+
+ENV PATH=$PATH:/x-tools/powerpc64-unknown-linux-gnueabihf/bin
+
 ENV \
-    AR_powerpc64_unknown_linux_gnu=powerpc64-linux-gnu-ar \
-    CC_powerpc64_unknown_linux_gnu=powerpc64-linux-gnu-gcc \
-    CXX_powerpc64_unknown_linux_gnu=powerpc64-linux-gnu-g++
+    AR_powerpc64_unknown_linux_gnu=powerpc64-unknown-linux-gnu-ar \
+    CC_powerpc64_unknown_linux_gnu=powerpc64-unknown-linux-gnu-gcc \
+    CXX_powerpc64_unknown_linux_gnu=powerpc64-unknown-linux-gnu-g++ \
+    AR_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-ar \
+    CC_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-gcc \
+    CXX_powerpc64le_unknown_linux_gnu=powerpc64le-linux-gnu-g++
 
 ENV HOSTS=powerpc64-unknown-linux-gnu
 ENV HOSTS=$HOSTS,powerpc64le-unknown-linux-gnu

src/ci/docker/dist-powerpc64-linux/build-powerpc64-toolchain.sh

+#!/bin/bash
+# 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.
+
+set -ex
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  $@ &> /tmp/build.log
+  rm /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  set -x
+}
+
+mkdir build
+cd build
+cp ../powerpc64-linux-gnu.config .config
+hide_output ct-ng build
+cd ..
+rm -rf build

src/ci/docker/dist-powerpc64-linux/build-powerpc64le-toolchain.sh

+#!/bin/bash
+
+set -ex
+
+BINUTILS=2.25.1
+GCC=5.3.0
+TARGET=powerpc64le-linux-gnu
+SYSROOT=/usr/local/$TARGET/sysroot
+
+# First, download the CentOS7 glibc.ppc64le and relevant header files.
+# (upstream ppc64le support wasn't added until 2.19, which el7 backported.)
+mkdir -p $SYSROOT
+pushd $SYSROOT
+
+centos_base=http://mirror.centos.org/altarch/7.3.1611/os/ppc64le/Packages
+glibc_v=2.17-157.el7
+kernel_v=3.10.0-514.el7
+for package in glibc{,-devel,-headers}-$glibc_v kernel-headers-$kernel_v; do
+  curl $centos_base/$package.ppc64le.rpm | \
+    rpm2cpio - | cpio -idm
+done
+
+ln -sT lib64 lib
+ln -sT lib64 usr/lib
+
+popd
+
+# Next, download and build binutils.
+mkdir binutils-$TARGET
+pushd binutils-$TARGET
+curl https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS.tar.bz2 | tar xjf -
+mkdir binutils-build
+cd binutils-build
+../binutils-$BINUTILS/configure --target=$TARGET --with-sysroot=$SYSROOT
+make -j10
+make install
+popd
+rm -rf binutils-$TARGET
+
+# Finally, download and build gcc.
+mkdir gcc-$TARGET
+pushd gcc-$TARGET
+curl https://ftp.gnu.org/gnu/gcc/gcc-$GCC/gcc-$GCC.tar.bz2 | tar xjf -
+cd gcc-$GCC
+./contrib/download_prerequisites
+
+mkdir ../gcc-build
+cd ../gcc-build
+../gcc-$GCC/configure                            \
+  --enable-languages=c,c++                       \
+  --target=$TARGET                               \
+  --with-cpu=power8                              \
+  --with-sysroot=$SYSROOT                        \
+  --disable-libcilkrts                           \
+  --disable-multilib                             \
+  --disable-nls                                  \
+  --disable-libgomp                              \
+  --disable-libquadmath                          \
+  --disable-libssp                               \
+  --disable-libvtv                               \
+  --disable-libcilkrt                            \
+  --disable-libada                               \
+  --disable-libsanitizer                         \
+  --disable-libquadmath-support                  \
+  --disable-lto
+make -j10
+make install
+
+popd
+rm -rf gcc-$TARGET

src/ci/docker/dist-powerpc64-linux/patches/glibc/2.12.2/001-PowerPC-Remove-unnecessary-mnew-mnemonics.patch

+From b3563932f85d60bb0d38b0a5f3b8f4abc133f890 Mon Sep 17 00:00:00 2001
+From: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
+Date: Thu, 1 Nov 2012 18:00:06 -0500
+Subject: [PATCH] PowerPC: Remove unnecessary -mnew-mnemonics.
+
+---
+ sysdeps/powerpc/Makefile | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/sysdeps/powerpc/Makefile b/sysdeps/powerpc/Makefile
+index 79dd6fa976d5..7442b6709ad1 100644
+--- a/sysdeps/powerpc/Makefile
++++ b/sysdeps/powerpc/Makefile
+@@ -1,7 +1,3 @@
+-# We always want to use the new mnemonic syntax even if we are on a RS6000
+-# machine.
+-+cflags += -mnew-mnemonics
+-
+ ifeq ($(subdir),gmon)
+ sysdep_routines += ppc-mcount
+ endif
+-- 
+2.9.3
+

src/ci/docker/dist-powerpc64-linux/patches/glibc/2.12.2/002-Prevent-inlining-in-PPC64-initfini.s.patch

+From a4f388e111ce05e2ab7912cff3c9070334bb74ae Mon Sep 17 00:00:00 2001
+From: Josh Stone <jistone@redhat.com>
+Date: Fri, 20 Jan 2017 15:41:56 -0800
+Subject: [PATCH] Prevent inlining in PPC64 initfini.s
+
+Ref: https://sourceware.org/ml/libc-alpha/2012-01/msg00195.html
+---
+ sysdeps/powerpc/powerpc64/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile
+index 78d4f07e575f..fe96aae4d43e 100644
+--- a/sysdeps/powerpc/powerpc64/Makefile
++++ b/sysdeps/powerpc/powerpc64/Makefile
+@@ -28,7 +28,7 @@ elide-routines.os += hp-timing
+ ifneq ($(elf),no)
+ # The initfini generation code doesn't work in the presence of -fPIC, so
+ # we use -fpic instead which is much better.
+-CFLAGS-initfini.s += -fpic -O1
++CFLAGS-initfini.s += -fpic -O1 -fno-inline
+ endif
+ endif
+ 
+-- 
+2.9.3
+

src/ci/docker/dist-powerpc64-linux/powerpc64-linux-gnu.config

+#
+# Automatically generated file; DO NOT EDIT.
+# Crosstool-NG Configuration
+#
+CT_CONFIGURE_has_make381=y
+CT_CONFIGURE_has_xz=y
+CT_MODULES=y
+
+#
+# Paths and misc options
+#
+
+#
+# crosstool-NG behavior
+#
+# CT_OBSOLETE is not set
+# CT_EXPERIMENTAL is not set
+# CT_DEBUG_CT is not set
+
+#
+# Paths
+#
+CT_LOCAL_TARBALLS_DIR=""
+CT_WORK_DIR="${CT_TOP_DIR}/.build"
+CT_PREFIX_DIR="/x-tools/${CT_TARGET}"
+CT_INSTALL_DIR="${CT_PREFIX_DIR}"
+CT_RM_RF_PREFIX_DIR=y
+CT_REMOVE_DOCS=y
+CT_INSTALL_DIR_RO=y
+CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
+# CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES is not set
+
+#
+# Downloading
+#
+# CT_FORBID_DOWNLOAD is not set
+# CT_FORCE_DOWNLOAD is not set
+CT_CONNECT_TIMEOUT=10
+# CT_ONLY_DOWNLOAD is not set
+# CT_USE_MIRROR is not set
+
+#
+# Extracting
+#
+# CT_FORCE_EXTRACT is not set
+CT_OVERIDE_CONFIG_GUESS_SUB=y
+# CT_ONLY_EXTRACT is not set
+# CT_PATCH_BUNDLED is not set
+# CT_PATCH_LOCAL is not set
+CT_PATCH_BUNDLED_LOCAL=y
+# CT_PATCH_LOCAL_BUNDLED is not set
+# CT_PATCH_BUNDLED_FALLBACK_LOCAL is not set
+# CT_PATCH_LOCAL_FALLBACK_BUNDLED is not set
+# CT_PATCH_NONE is not set
+CT_PATCH_ORDER="bundled,local"
+CT_PATCH_USE_LOCAL=y
+CT_LOCAL_PATCH_DIR="/tmp/patches"
+
+#
+# Build behavior
+#
+CT_PARALLEL_JOBS=0
+CT_LOAD=""
+CT_USE_PIPES=y
+CT_EXTRA_CFLAGS_FOR_BUILD=""
+CT_EXTRA_LDFLAGS_FOR_BUILD=""
+CT_EXTRA_CFLAGS_FOR_HOST=""
+CT_EXTRA_LDFLAGS_FOR_HOST=""
+# CT_CONFIG_SHELL_SH is not set
+# CT_CONFIG_SHELL_ASH is not set
+CT_CONFIG_SHELL_BASH=y
+# CT_CONFIG_SHELL_CUSTOM is not set
+CT_CONFIG_SHELL="${bash}"
+
+#
+# Logging
+#
+# CT_LOG_ERROR is not set
+# CT_LOG_WARN is not set
+CT_LOG_INFO=y
+# CT_LOG_EXTRA is not set
+# CT_LOG_ALL is not set
+# CT_LOG_DEBUG is not set
+CT_LOG_LEVEL_MAX="INFO"
+# CT_LOG_SEE_TOOLS_WARN is not set
+CT_LOG_PROGRESS_BAR=y
+CT_LOG_TO_FILE=y
+CT_LOG_FILE_COMPRESS=y
+
+#
+# Target options
+#
+CT_ARCH="powerpc"
+CT_ARCH_SUPPORTS_BOTH_ENDIAN=y
+CT_ARCH_SUPPORTS_32=y
+CT_ARCH_SUPPORTS_64=y
+CT_ARCH_SUPPORTS_WITH_ABI=y
+CT_ARCH_SUPPORTS_WITH_CPU=y
+CT_ARCH_SUPPORTS_WITH_TUNE=y
+CT_ARCH_SUPPORTS_WITH_FLOAT=y
+CT_ARCH_DEFAULT_BE=y
+CT_ARCH_DEFAULT_32=y
+CT_ARCH_ABI=""
+CT_ARCH_CPU="power4"
+CT_ARCH_TUNE="power6"
+CT_ARCH_BE=y
+# CT_ARCH_LE is not set
+# CT_ARCH_32 is not set
+CT_ARCH_64=y
+CT_ARCH_BITNESS=64
+# CT_ARCH_FLOAT_HW is not set
+# CT_ARCH_FLOAT_SW is not set
+CT_TARGET_CFLAGS=""
+CT_TARGET_LDFLAGS=""
+# CT_ARCH_alpha is not set
+# CT_ARCH_arm is not set
+# CT_ARCH_avr is not set
+# CT_ARCH_m68k is not set
+# CT_ARCH_mips is not set
+# CT_ARCH_nios2 is not set
+CT_ARCH_powerpc=y
+# CT_ARCH_s390 is not set
+# CT_ARCH_sh is not set
+# CT_ARCH_sparc is not set
+# CT_ARCH_x86 is not set
+# CT_ARCH_xtensa is not set
+CT_ARCH_alpha_AVAILABLE=y
+CT_ARCH_arm_AVAILABLE=y
+CT_ARCH_avr_AVAILABLE=y
+CT_ARCH_m68k_AVAILABLE=y
+CT_ARCH_microblaze_AVAILABLE=y
+CT_ARCH_mips_AVAILABLE=y
+CT_ARCH_nios2_AVAILABLE=y
+CT_ARCH_powerpc_AVAILABLE=y
+CT_ARCH_s390_AVAILABLE=y
+CT_ARCH_sh_AVAILABLE=y
+CT_ARCH_sparc_AVAILABLE=y
+CT_ARCH_x86_AVAILABLE=y
+CT_ARCH_xtensa_AVAILABLE=y
+CT_ARCH_SUFFIX=""
+
+#
+# Generic target options
+#
+# CT_MULTILIB is not set
+CT_ARCH_USE_MMU=y
+CT_ARCH_ENDIAN="big"
+
+#
+# Target optimisations
+#
+CT_ARCH_FLOAT_AUTO=y
+CT_ARCH_FLOAT="auto"
+
+#
+# powerpc other options
+#
+CT_ARCH_powerpc_ABI=""
+CT_ARCH_powerpc_ABI_DEFAULT=y
+# CT_ARCH_powerpc_ABI_SPE is not set
+
+#
+# Toolchain options
+#
+
+#
+# General toolchain options
+#
+CT_FORCE_SYSROOT=y
+CT_USE_SYSROOT=y
+CT_SYSROOT_NAME="sysroot"
+CT_SYSROOT_DIR_PREFIX=""
+CT_WANTS_STATIC_LINK=y
+# CT_STATIC_TOOLCHAIN is not set
+CT_TOOLCHAIN_PKGVERSION=""
+CT_TOOLCHAIN_BUGURL=""
+
+#
+# Tuple completion and aliasing
+#
+CT_TARGET_VENDOR="unknown"
+CT_TARGET_ALIAS_SED_EXPR=""
+CT_TARGET_ALIAS=""
+
+#
+# Toolchain type
+#
+CT_CROSS=y
+# CT_CANADIAN is not set
+CT_TOOLCHAIN_TYPE="cross"
+
+#
+# Build system
+#
+CT_BUILD=""
+CT_BUILD_PREFIX=""
+CT_BUILD_SUFFIX=""
+
+#
+# Misc options
+#
+# CT_TOOLCHAIN_ENABLE_NLS is not set
+
+#
+# Operating System
+#
+CT_KERNEL_SUPPORTS_SHARED_LIBS=y
+CT_KERNEL="linux"
+CT_KERNEL_VERSION="2.6.32.68"
+# CT_KERNEL_bare_metal is not set
+CT_KERNEL_linux=y
+CT_KERNEL_bare_metal_AVAILABLE=y
+CT_KERNEL_linux_AVAILABLE=y
+# CT_KERNEL_V_4_3 is not set
+# CT_KERNEL_V_4_2 is not set
+# CT_KERNEL_V_4_1 is not set
+# CT_KERNEL_V_3_18 is not set
+# CT_KERNEL_V_3_14 is not set
+# CT_KERNEL_V_3_12 is not set
+# CT_KERNEL_V_3_10 is not set
+# CT_KERNEL_V_3_4 is not set
+# CT_KERNEL_V_3_2 is not set
+CT_KERNEL_V_2_6_32=y
+# CT_KERNEL_LINUX_CUSTOM is not set
+CT_KERNEL_windows_AVAILABLE=y
+
+#
+# Common kernel options
+#
+CT_SHARED_LIBS=y
+
+#
+# linux other options
+#
+CT_KERNEL_LINUX_VERBOSITY_0=y
+# CT_KERNEL_LINUX_VERBOSITY_1 is not set
+# CT_KERNEL_LINUX_VERBOSITY_2 is not set
+CT_KERNEL_LINUX_VERBOSE_LEVEL=0
+CT_KERNEL_LINUX_INSTALL_CHECK=y
+
+#
+# Binary utilities
+#
+CT_ARCH_BINFMT_ELF=y
+CT_BINUTILS="binutils"
+CT_BINUTILS_binutils=y
+
+#
+# GNU binutils
+#
+# CT_CC_BINUTILS_SHOW_LINARO is not set
+CT_BINUTILS_V_2_25_1=y
+# CT_BINUTILS_V_2_25 is not set
+# CT_BINUTILS_V_2_24 is not set
+# CT_BINUTILS_V_2_23_2 is not set
+# CT_BINUTILS_V_2_23_1 is not set
+# CT_BINUTILS_V_2_22 is not set
+# CT_BINUTILS_V_2_21_53 is not set
+# CT_BINUTILS_V_2_21_1a is not set
+# CT_BINUTILS_V_2_20_1a is not set
+# CT_BINUTILS_V_2_19_1a is not set
+# CT_BINUTILS_V_2_18a is not set
+CT_BINUTILS_VERSION="2.25.1"
+CT_BINUTILS_2_25_1_or_later=y
+CT_BINUTILS_2_25_or_later=y
+CT_BINUTILS_2_24_or_later=y
+CT_BINUTILS_2_23_or_later=y
+CT_BINUTILS_2_22_or_later=y
+CT_BINUTILS_2_21_or_later=y
+CT_BINUTILS_2_20_or_later=y
+CT_BINUTILS_2_19_or_later=y
+CT_BINUTILS_2_18_or_later=y
+CT_BINUTILS_HAS_HASH_STYLE=y
+CT_BINUTILS_HAS_GOLD=y
+CT_BINUTILS_HAS_PLUGINS=y
+CT_BINUTILS_HAS_PKGVERSION_BUGURL=y
+CT_BINUTILS_FORCE_LD_BFD=y
+CT_BINUTILS_LINKER_LD=y
+CT_BINUTILS_LINKERS_LIST="ld"
+CT_BINUTILS_LINKER_DEFAULT="bfd"
+# CT_BINUTILS_PLUGINS is not set
+CT_BINUTILS_EXTRA_CONFIG_ARRAY=""
+# CT_BINUTILS_FOR_TARGET is not set
+
+#
+# binutils other options
+#
+
+#
+# C-library
+#
+CT_LIBC="glibc"
+CT_LIBC_VERSION="2.12.2"
+CT_LIBC_glibc=y
+# CT_LIBC_musl is not set
+# CT_LIBC_uClibc is not set
+CT_LIBC_avr_libc_AVAILABLE=y
+CT_LIBC_glibc_AVAILABLE=y
+CT_THREADS="nptl"
+# CT_CC_GLIBC_SHOW_LINARO is not set
+# CT_LIBC_GLIBC_V_2_22 is not set
+# CT_LIBC_GLIBC_V_2_21 is not set
+# CT_LIBC_GLIBC_V_2_20 is not set
+# CT_LIBC_GLIBC_V_2_19 is not set
+# CT_LIBC_GLIBC_V_2_18 is not set
+# CT_LIBC_GLIBC_V_2_17 is not set
+# CT_LIBC_GLIBC_V_2_16_0 is not set
+# CT_LIBC_GLIBC_V_2_15 is not set
+# CT_LIBC_GLIBC_V_2_14_1 is not set
+# CT_LIBC_GLIBC_V_2_14 is not set
+# CT_LIBC_GLIBC_V_2_13 is not set
+CT_LIBC_GLIBC_V_2_12_2=y
+# CT_LIBC_GLIBC_V_2_12_1 is not set
+# CT_LIBC_GLIBC_V_2_11_1 is not set
+# CT_LIBC_GLIBC_V_2_11 is not set
+# CT_LIBC_GLIBC_V_2_10_1 is not set
+# CT_LIBC_GLIBC_V_2_9 is not set
+# CT_LIBC_GLIBC_V_2_8 is not set
+CT_LIBC_mingw_AVAILABLE=y
+CT_LIBC_musl_AVAILABLE=y
+CT_LIBC_newlib_AVAILABLE=y
+CT_LIBC_none_AVAILABLE=y
+CT_LIBC_uClibc_AVAILABLE=y
+CT_LIBC_SUPPORT_THREADS_ANY=y
+CT_LIBC_SUPPORT_THREADS_NATIVE=y
+
+#
+# Common C library options
+#
+CT_THREADS_NATIVE=y
+CT_LIBC_XLDD=y
+
+#
+# glibc other options
+#
+CT_LIBC_GLIBC_PORTS_EXTERNAL=y
+CT_LIBC_glibc_familly=y
+CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY=""
+CT_LIBC_GLIBC_CONFIGPARMS=""
+CT_LIBC_GLIBC_EXTRA_CFLAGS=""
+CT_LIBC_EXTRA_CC_ARGS=""
+# CT_LIBC_DISABLE_VERSIONING is not set
+CT_LIBC_OLDEST_ABI=""
+CT_LIBC_GLIBC_FORCE_UNWIND=y
+# CT_LIBC_GLIBC_USE_PORTS is not set
+CT_LIBC_ADDONS_LIST=""
+# CT_LIBC_LOCALES is not set
+# CT_LIBC_GLIBC_KERNEL_VERSION_NONE is not set
+CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS=y
+# CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN is not set
+CT_LIBC_GLIBC_MIN_KERNEL="2.6.32.68"
+
+#
+# C compiler
+#
+CT_CC="gcc"
+CT_CC_CORE_PASSES_NEEDED=y
+CT_CC_CORE_PASS_1_NEEDED=y
+CT_CC_CORE_PASS_2_NEEDED=y
+CT_CC_gcc=y
+# CT_CC_GCC_SHOW_LINARO is not set
+# CT_CC_GCC_V_5_2_0 is not set
+CT_CC_GCC_V_4_9_3=y
+# CT_CC_GCC_V_4_8_5 is not set
+# CT_CC_GCC_V_4_7_4 is not set
+# CT_CC_GCC_V_4_6_4 is not set
+# CT_CC_GCC_V_4_5_4 is not set
+# CT_CC_GCC_V_4_4_7 is not set
+# CT_CC_GCC_V_4_3_6 is not set
+# CT_CC_GCC_V_4_2_4 is not set
+CT_CC_GCC_4_2_or_later=y
+CT_CC_GCC_4_3_or_later=y
+CT_CC_GCC_4_4_or_later=y
+CT_CC_GCC_4_5_or_later=y
+CT_CC_GCC_4_6_or_later=y
+CT_CC_GCC_4_7_or_later=y
+CT_CC_GCC_4_8_or_later=y
+CT_CC_GCC_4_9=y
+CT_CC_GCC_4_9_or_later=y
+CT_CC_GCC_HAS_GRAPHITE=y
+CT_CC_GCC_USE_GRAPHITE=y
+CT_CC_GCC_HAS_LTO=y
+CT_CC_GCC_USE_LTO=y
+CT_CC_GCC_HAS_PKGVERSION_BUGURL=y
+CT_CC_GCC_HAS_BUILD_ID=y
+CT_CC_GCC_HAS_LNK_HASH_STYLE=y
+CT_CC_GCC_USE_GMP_MPFR=y
+CT_CC_GCC_USE_MPC=y
+CT_CC_GCC_HAS_LIBQUADMATH=y
+CT_CC_GCC_HAS_LIBSANITIZER=y
+CT_CC_GCC_VERSION="4.9.3"
+# CT_CC_LANG_FORTRAN is not set
+CT_CC_GCC_ENABLE_CXX_FLAGS=""
+CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY=""
+CT_CC_GCC_EXTRA_CONFIG_ARRAY=""
+CT_CC_GCC_EXTRA_ENV_ARRAY=""
+CT_CC_GCC_STATIC_LIBSTDCXX=y
+# CT_CC_GCC_SYSTEM_ZLIB is not set
+
+#
+# Optimisation features
+#
+
+#
+# Settings for libraries running on target
+#
+CT_CC_GCC_ENABLE_TARGET_OPTSPACE=y
+# CT_CC_GCC_LIBMUDFLAP is not set
+# CT_CC_GCC_LIBGOMP is not set
+# CT_CC_GCC_LIBSSP is not set
+# CT_CC_GCC_LIBQUADMATH is not set
+# CT_CC_GCC_LIBSANITIZER is not set
+
+#
+# Misc. obscure options.
+#
+CT_CC_CXA_ATEXIT=y
+# CT_CC_GCC_DISABLE_PCH is not set
+CT_CC_GCC_SJLJ_EXCEPTIONS=m
+CT_CC_GCC_LDBL_128=m
+# CT_CC_GCC_BUILD_ID is not set
+CT_CC_GCC_LNK_HASH_STYLE_DEFAULT=y
+# CT_CC_GCC_LNK_HASH_STYLE_SYSV is not set
+# CT_CC_GCC_LNK_HASH_STYLE_GNU is not set
+# CT_CC_GCC_LNK_HASH_STYLE_BOTH is not set
+CT_CC_GCC_LNK_HASH_STYLE=""
+CT_CC_GCC_DEC_FLOAT_AUTO=y
+# CT_CC_GCC_DEC_FLOAT_BID is not set
+# CT_CC_GCC_DEC_FLOAT_DPD is not set
+# CT_CC_GCC_DEC_FLOATS_NO is not set
+CT_CC_SUPPORT_CXX=y
+CT_CC_SUPPORT_FORTRAN=y
+CT_CC_SUPPORT_JAVA=y
+CT_CC_SUPPORT_ADA=y
+CT_CC_SUPPORT_OBJC=y
+CT_CC_SUPPORT_OBJCXX=y
+CT_CC_SUPPORT_GOLANG=y
+
+#
+# Additional supported languages:
+#
+CT_CC_LANG_CXX=y
+# CT_CC_LANG_JAVA is not set
+
+#
+# Debug facilities
+#
+# CT_DEBUG_dmalloc is not set
+# CT_DEBUG_duma is not set
+# CT_DEBUG_gdb is not set
+# CT_DEBUG_ltrace is not set
+# CT_DEBUG_strace is not set
+
+#
+# Companion libraries
+#
+CT_COMPLIBS_NEEDED=y
+CT_LIBICONV_NEEDED=y
+CT_GETTEXT_NEEDED=y
+CT_GMP_NEEDED=y
+CT_MPFR_NEEDED=y
+CT_ISL_NEEDED=y
+CT_CLOOG_NEEDED=y
+CT_MPC_NEEDED=y
+CT_COMPLIBS=y
+CT_LIBICONV=y
+CT_GETTEXT=y
+CT_GMP=y
+CT_MPFR=y
+CT_ISL=y
+CT_CLOOG=y
+CT_MPC=y
+CT_LIBICONV_V_1_14=y
+CT_LIBICONV_VERSION="1.14"
+CT_GETTEXT_V_0_19_6=y
+CT_GETTEXT_VERSION="0.19.6"
+CT_GMP_V_6_0_0=y
+# CT_GMP_V_5_1_3 is not set
+# CT_GMP_V_5_1_1 is not set
+# CT_GMP_V_5_0_2 is not set
+# CT_GMP_V_5_0_1 is not set
+# CT_GMP_V_4_3_2 is not set
+# CT_GMP_V_4_3_1 is not set
+# CT_GMP_V_4_3_0 is not set
+CT_GMP_5_0_2_or_later=y
+CT_GMP_VERSION="6.0.0a"
+CT_MPFR_V_3_1_3=y
+# CT_MPFR_V_3_1_2 is not set
+# CT_MPFR_V_3_1_0 is not set
+# CT_MPFR_V_3_0_1 is not set
+# CT_MPFR_V_3_0_0 is not set
+# CT_MPFR_V_2_4_2 is not set
+# CT_MPFR_V_2_4_1 is not set
+# CT_MPFR_V_2_4_0 is not set
+CT_MPFR_VERSION="3.1.3"
+CT_ISL_V_0_14=y
+CT_ISL_V_0_14_or_later=y
+CT_ISL_V_0_12_or_later=y
+CT_ISL_VERSION="0.14"
+CT_CLOOG_V_0_18_4=y
+# CT_CLOOG_V_0_18_1 is not set
+# CT_CLOOG_V_0_18_0 is not set
+CT_CLOOG_VERSION="0.18.4"
+CT_CLOOG_0_18_4_or_later=y
+CT_CLOOG_0_18_or_later=y
+CT_MPC_V_1_0_3=y
+# CT_MPC_V_1_0_2 is not set
+# CT_MPC_V_1_0_1 is not set
+# CT_MPC_V_1_0 is not set
+# CT_MPC_V_0_9 is not set
+# CT_MPC_V_0_8_2 is not set
+# CT_MPC_V_0_8_1 is not set
+# CT_MPC_V_0_7 is not set
+CT_MPC_VERSION="1.0.3"
+
+#
+# Companion libraries common options
+#
+# CT_COMPLIBS_CHECK is not set
+
+#
+# Companion tools
+#
+
+#
+# READ HELP before you say 'Y' below !!!
+#
+# CT_COMP_TOOLS is not set

src/ci/docker/dist-s390x-linux-netbsd/Dockerfile

 FROM ubuntu:16.04
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
+  automake \
+  bison \
+  bzip2 \
+  ca-certificates \
+  cmake \
+  curl \
+  file \
+  flex \
   g++ \
+  gawk \
+  gdb \
+  git \
+  gperf \
+  help2man \
+  libncurses-dev \
+  libtool-bin \
   make \
-  file \
-  curl \
-  ca-certificates \
+  patch \
   python2.7 \
-  git \
-  cmake \
   sudo \
-  bzip2 \
-  xz-utils \
+  texinfo \
   wget \
-  patch \
-  g++-s390x-linux-gnu
+  xz-utils
 
-COPY build-toolchain.sh /tmp/
-RUN sh /tmp/build-toolchain.sh
+ENV SCCACHE_DIGEST=7237e38e029342fa27b7ac25412cb9d52554008b12389727320bd533fd7f05b6a96d55485f305caf95e5c8f5f97c3313e10012ccad3e752aba2518f3522ba783
+RUN curl -L https://api.pub.build.mozilla.org/tooltool/sha512/$SCCACHE_DIGEST | \
+      tar xJf - -C /usr/local/bin --strip-components=1
 
 RUN curl -OL https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64.deb && \
     dpkg -i dumb-init_*.deb && \
     rm dumb-init_*.deb
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
-ENV SCCACHE_DIGEST=7237e38e029342fa27b7ac25412cb9d52554008b12389727320bd533fd7f05b6a96d55485f305caf95e5c8f5f97c3313e10012ccad3e752aba2518f3522ba783
-RUN curl -L https://api.pub.build.mozilla.org/tooltool/sha512/$SCCACHE_DIGEST | \
-      tar xJf - -C /usr/local/bin --strip-components=1
+# Ubuntu 16.04 (this contianer) ships with make 4, but something in the
+# toolchains we build below chokes on that, so go back to make 3
+RUN curl https://ftp.gnu.org/gnu/make/make-3.81.tar.gz | tar xzf - && \
+      cd make-3.81 && \
+      ./configure --prefix=/usr && \
+      make && \
+      make install && \
+      cd .. && \
+      rm -rf make-3.81
+
+RUN curl http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.22.0.tar.bz2 | \
+      tar xjf - && \
+      cd crosstool-ng && \
+      ./configure --prefix=/usr/local && \
+      make -j$(nproc) && \
+      make install && \
+      cd .. && \
+      rm -rf crosstool-ng
+
+RUN groupadd -r rustbuild && useradd -m -r -g rustbuild rustbuild
+RUN mkdir /x-tools && chown rustbuild:rustbuild /x-tools
+USER rustbuild
+WORKDIR /tmp
+
+COPY patches/ /tmp/patches/
+COPY s390x-linux-gnu.config build-s390x-toolchain.sh /tmp/
+RUN ./build-s390x-toolchain.sh
+
+USER root
+
+COPY build-netbsd-toolchain.sh /tmp/
+RUN ./build-netbsd-toolchain.sh
+
+ENV PATH=$PATH:/x-tools/s390x-ibm-linux-gnu/bin
 
 ENV \
     AR_x86_64_unknown_netbsd=x86_64-unknown-netbsd-ar \
     CC_x86_64_unknown_netbsd=x86_64-unknown-netbsd-gcc \
-    CXX_x86_64_unknown_netbsd=x86_64-unknown-netbsd-g++
+    CXX_x86_64_unknown_netbsd=x86_64-unknown-netbsd-g++ \
+    CC_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-gcc \
+    AR_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-ar \
+    CXX_s390x_unknown_linux_gnu=s390x-ibm-linux-gnu-g++
 
 ENV HOSTS=x86_64-unknown-netbsd
 ENV HOSTS=$HOSTS,s390x-unknown-linux-gnu

src/ci/docker/dist-s390x-linux-netbsd/build-s390x-toolchain.sh

+#!/bin/bash
+# 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.
+
+set -ex
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  $@ &> /tmp/build.log
+  rm /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  set -x
+}
+
+mkdir build
+cd build
+cp ../s390x-linux-gnu.config .config
+hide_output ct-ng build
+cd ..
+rm -rf build

src/ci/docker/dist-s390x-linux-netbsd/patches/glibc/2.12.2/001-Use-.machine-to-prevent-AS-from-complaining-about-z9.patch

+From 2739047682590b1df473401b4febf424f857fccf Mon Sep 17 00:00:00 2001
+From: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
+Date: Sun, 17 Apr 2011 20:43:59 -0400
+Subject: [PATCH] Use .machine to prevent AS from complaining about z9-109
+ instructions in iconv modules
+
+---
+ sysdeps/s390/s390-64/utf16-utf32-z9.c | 5 ++++-
+ sysdeps/s390/s390-64/utf8-utf16-z9.c  | 5 ++++-
+ sysdeps/s390/s390-64/utf8-utf32-z9.c  | 5 ++++-
+ 3 files changed, 12 insertions(+), 3 deletions(-)
+
+diff --git a/sysdeps/s390/s390-64/utf16-utf32-z9.c b/sysdeps/s390/s390-64/utf16-utf32-z9.c
+index 14daf2118fe5..5bcaaaedec9c 100644
+--- a/sysdeps/s390/s390-64/utf16-utf32-z9.c
++++ b/sysdeps/s390/s390-64/utf16-utf32-z9.c
+@@ -169,7 +169,10 @@ gconv_end (struct __gconv_step *data)
+     register unsigned long long outlen asm("11") = outend - outptr;	\
+     uint64_t cc = 0;							\
+ 									\
+-    asm volatile ("0: " INSTRUCTION "  \n\t"				\
++    asm volatile (".machine push       \n\t"				\
++                  ".machine \"z9-109\" \n\t"				\
++		  "0: " INSTRUCTION "  \n\t"				\
++                  ".machine pop        \n\t"				\
+                   "   jo     0b        \n\t"				\
+ 		  "   ipm    %2        \n"			        \
+ 		  : "+a" (pOutput), "+a" (pInput), "+d" (cc),		\
+diff --git a/sysdeps/s390/s390-64/utf8-utf16-z9.c b/sysdeps/s390/s390-64/utf8-utf16-z9.c
+index 5f73f3c59e21..812a42fae44c 100644
+--- a/sysdeps/s390/s390-64/utf8-utf16-z9.c
++++ b/sysdeps/s390/s390-64/utf8-utf16-z9.c
+@@ -151,7 +151,10 @@ gconv_end (struct __gconv_step *data)
+     register unsigned long long outlen asm("11") = outend - outptr;	\
+     uint64_t cc = 0;							\
+ 									\
+-    asm volatile ("0: " INSTRUCTION "  \n\t"				\
++    asm volatile (".machine push       \n\t"				\
++                  ".machine \"z9-109\" \n\t"				\
++		  "0: " INSTRUCTION "  \n\t"				\
++                  ".machine pop        \n\t"				\
+                   "   jo     0b        \n\t"				\
+ 		  "   ipm    %2        \n"			        \
+ 		  : "+a" (pOutput), "+a" (pInput), "+d" (cc),		\
+diff --git a/sysdeps/s390/s390-64/utf8-utf32-z9.c b/sysdeps/s390/s390-64/utf8-utf32-z9.c
+index 17ef8bc890c3..0ffd848c8124 100644
+--- a/sysdeps/s390/s390-64/utf8-utf32-z9.c
++++ b/sysdeps/s390/s390-64/utf8-utf32-z9.c
+@@ -155,7 +155,10 @@ gconv_end (struct __gconv_step *data)
+     register unsigned long long outlen asm("11") = outend - outptr;	\
+     uint64_t cc = 0;							\
+ 									\
+-    asm volatile ("0: " INSTRUCTION "  \n\t"				\
++    asm volatile (".machine push       \n\t"				\
++                  ".machine \"z9-109\" \n\t"				\
++		  "0: " INSTRUCTION "  \n\t"				\
++                  ".machine pop        \n\t"				\
+                   "   jo     0b        \n\t"				\
+ 		  "   ipm    %2        \n"				\
+ 		  : "+a" (pOutput), "+a" (pInput), "+d" (cc),		\
+-- 
+2.9.3
+

src/ci/docker/dist-s390x-linux-netbsd/s390x-linux-gnu.config

+#
+# Automatically generated file; DO NOT EDIT.
+# Crosstool-NG Configuration
+#
+CT_CONFIGURE_has_make381=y
+CT_CONFIGURE_has_xz=y
+CT_MODULES=y
+
+#
+# Paths and misc options
+#
+
+#
+# crosstool-NG behavior
+#
+# CT_OBSOLETE is not set
+# CT_EXPERIMENTAL is not set
+# CT_DEBUG_CT is not set
+
+#
+# Paths
+#
+CT_LOCAL_TARBALLS_DIR=""
+CT_WORK_DIR="${CT_TOP_DIR}/.build"
+CT_PREFIX_DIR="/x-tools/${CT_TARGET}"
+CT_INSTALL_DIR="${CT_PREFIX_DIR}"
+CT_RM_RF_PREFIX_DIR=y
+CT_REMOVE_DOCS=y
+CT_INSTALL_DIR_RO=y
+CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
+# CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES is not set
+
+#
+# Downloading
+#
+# CT_FORBID_DOWNLOAD is not set
+# CT_FORCE_DOWNLOAD is not set
+CT_CONNECT_TIMEOUT=10
+# CT_ONLY_DOWNLOAD is not set
+# CT_USE_MIRROR is not set
+
+#
+# Extracting
+#
+# CT_FORCE_EXTRACT is not set
+CT_OVERIDE_CONFIG_GUESS_SUB=y
+# CT_ONLY_EXTRACT is not set
+# CT_PATCH_BUNDLED is not set
+# CT_PATCH_LOCAL is not set
+CT_PATCH_BUNDLED_LOCAL=y
+# CT_PATCH_LOCAL_BUNDLED is not set
+# CT_PATCH_BUNDLED_FALLBACK_LOCAL is not set
+# CT_PATCH_LOCAL_FALLBACK_BUNDLED is not set
+# CT_PATCH_NONE is not set
+CT_PATCH_ORDER="bundled,local"
+CT_PATCH_USE_LOCAL=y
+CT_LOCAL_PATCH_DIR="/tmp/patches"
+
+#
+# Build behavior
+#
+CT_PARALLEL_JOBS=0
+CT_LOAD=""
+CT_USE_PIPES=y
+CT_EXTRA_CFLAGS_FOR_BUILD=""
+CT_EXTRA_LDFLAGS_FOR_BUILD=""
+CT_EXTRA_CFLAGS_FOR_HOST=""
+CT_EXTRA_LDFLAGS_FOR_HOST=""
+# CT_CONFIG_SHELL_SH is not set
+# CT_CONFIG_SHELL_ASH is not set
+CT_CONFIG_SHELL_BASH=y
+# CT_CONFIG_SHELL_CUSTOM is not set
+CT_CONFIG_SHELL="${bash}"
+
+#
+# Logging
+#
+# CT_LOG_ERROR is not set
+# CT_LOG_WARN is not set
+CT_LOG_INFO=y
+# CT_LOG_EXTRA is not set
+# CT_LOG_ALL is not set
+# CT_LOG_DEBUG is not set
+CT_LOG_LEVEL_MAX="INFO"
+# CT_LOG_SEE_TOOLS_WARN is not set
+CT_LOG_PROGRESS_BAR=y
+CT_LOG_TO_FILE=y
+CT_LOG_FILE_COMPRESS=y
+
+#
+# Target options
+#
+CT_ARCH="s390"
+CT_ARCH_SUPPORTS_32=y
+CT_ARCH_SUPPORTS_64=y
+CT_ARCH_SUPPORTS_WITH_FPU=y
+CT_ARCH_DEFAULT_32=y
+CT_ARCH_FPU=""
+# CT_ARCH_32 is not set
+CT_ARCH_64=y
+CT_ARCH_BITNESS=64
+CT_TARGET_CFLAGS=""
+CT_TARGET_LDFLAGS=""
+# CT_ARCH_alpha is not set
+# CT_ARCH_arm is not set
+# CT_ARCH_avr is not set
+# CT_ARCH_m68k is not set
+# CT_ARCH_mips is not set
+# CT_ARCH_nios2 is not set
+# CT_ARCH_powerpc is not set
+CT_ARCH_s390=y
+# CT_ARCH_sh is not set
+# CT_ARCH_sparc is not set
+# CT_ARCH_x86 is not set
+# CT_ARCH_xtensa is not set
+CT_ARCH_alpha_AVAILABLE=y
+CT_ARCH_arm_AVAILABLE=y
+CT_ARCH_avr_AVAILABLE=y
+CT_ARCH_m68k_AVAILABLE=y
+CT_ARCH_microblaze_AVAILABLE=y
+CT_ARCH_mips_AVAILABLE=y
+CT_ARCH_nios2_AVAILABLE=y
+CT_ARCH_powerpc_AVAILABLE=y
+CT_ARCH_s390_AVAILABLE=y
+CT_ARCH_sh_AVAILABLE=y
+CT_ARCH_sparc_AVAILABLE=y
+CT_ARCH_x86_AVAILABLE=y
+CT_ARCH_xtensa_AVAILABLE=y
+CT_ARCH_SUFFIX=""
+
+#
+# Generic target options
+#
+# CT_MULTILIB is not set
+CT_ARCH_USE_MMU=y
+
+#
+# Target optimisations
+#
+CT_ARCH_FLOAT=""
+
+#
+# Toolchain options
+#
+
+#
+# General toolchain options
+#
+CT_FORCE_SYSROOT=y
+CT_USE_SYSROOT=y
+CT_SYSROOT_NAME="sysroot"
+CT_SYSROOT_DIR_PREFIX=""
+CT_WANTS_STATIC_LINK=y
+# CT_STATIC_TOOLCHAIN is not set
+CT_TOOLCHAIN_PKGVERSION=""
+CT_TOOLCHAIN_BUGURL=""
+
+#
+# Tuple completion and aliasing
+#
+CT_TARGET_VENDOR="unknown"
+CT_TARGET_ALIAS_SED_EXPR=""
+CT_TARGET_ALIAS=""
+
+#
+# Toolchain type
+#
+CT_CROSS=y
+# CT_CANADIAN is not set
+CT_TOOLCHAIN_TYPE="cross"
+
+#
+# Build system
+#
+CT_BUILD=""
+CT_BUILD_PREFIX=""
+CT_BUILD_SUFFIX=""
+
+#
+# Misc options
+#
+# CT_TOOLCHAIN_ENABLE_NLS is not set
+
+#
+# Operating System
+#
+CT_KERNEL_SUPPORTS_SHARED_LIBS=y
+CT_KERNEL="linux"
+CT_KERNEL_VERSION="2.6.32.68"
+# CT_KERNEL_bare_metal is not set
+CT_KERNEL_linux=y
+CT_KERNEL_bare_metal_AVAILABLE=y
+CT_KERNEL_linux_AVAILABLE=y
+# CT_KERNEL_V_4_3 is not set
+# CT_KERNEL_V_4_2 is not set
+# CT_KERNEL_V_4_1 is not set
+# CT_KERNEL_V_3_18 is not set
+# CT_KERNEL_V_3_14 is not set
+# CT_KERNEL_V_3_12 is not set
+# CT_KERNEL_V_3_10 is not set
+# CT_KERNEL_V_3_4 is not set
+# CT_KERNEL_V_3_2 is not set
+CT_KERNEL_V_2_6_32=y
+# CT_KERNEL_LINUX_CUSTOM is not set
+CT_KERNEL_windows_AVAILABLE=y
+
+#
+# Common kernel options
+#
+CT_SHARED_LIBS=y
+
+#
+# linux other options
+#
+CT_KERNEL_LINUX_VERBOSITY_0=y
+# CT_KERNEL_LINUX_VERBOSITY_1 is not set
+# CT_KERNEL_LINUX_VERBOSITY_2 is not set
+CT_KERNEL_LINUX_VERBOSE_LEVEL=0
+CT_KERNEL_LINUX_INSTALL_CHECK=y
+
+#
+# Binary utilities
+#
+CT_ARCH_BINFMT_ELF=y
+CT_BINUTILS="binutils"
+CT_BINUTILS_binutils=y
+
+#
+# GNU binutils
+#
+# CT_CC_BINUTILS_SHOW_LINARO is not set
+CT_BINUTILS_V_2_25_1=y
+# CT_BINUTILS_V_2_25 is not set
+# CT_BINUTILS_V_2_24 is not set
+# CT_BINUTILS_V_2_23_2 is not set
+# CT_BINUTILS_V_2_23_1 is not set
+# CT_BINUTILS_V_2_22 is not set
+# CT_BINUTILS_V_2_21_53 is not set
+# CT_BINUTILS_V_2_21_1a is not set
+# CT_BINUTILS_V_2_20_1a is not set
+# CT_BINUTILS_V_2_19_1a is not set
+# CT_BINUTILS_V_2_18a is not set
+CT_BINUTILS_VERSION="2.25.1"
+CT_BINUTILS_2_25_1_or_later=y
+CT_BINUTILS_2_25_or_later=y
+CT_BINUTILS_2_24_or_later=y
+CT_BINUTILS_2_23_or_later=y
+CT_BINUTILS_2_22_or_later=y
+CT_BINUTILS_2_21_or_later=y
+CT_BINUTILS_2_20_or_later=y
+CT_BINUTILS_2_19_or_later=y
+CT_BINUTILS_2_18_or_later=y
+CT_BINUTILS_HAS_HASH_STYLE=y
+CT_BINUTILS_HAS_GOLD=y
+CT_BINUTILS_HAS_PLUGINS=y
+CT_BINUTILS_HAS_PKGVERSION_BUGURL=y
+CT_BINUTILS_FORCE_LD_BFD=y
+CT_BINUTILS_LINKER_LD=y
+CT_BINUTILS_LINKERS_LIST="ld"
+CT_BINUTILS_LINKER_DEFAULT="bfd"
+# CT_BINUTILS_PLUGINS is not set
+CT_BINUTILS_EXTRA_CONFIG_ARRAY=""
+# CT_BINUTILS_FOR_TARGET is not set
+
+#
+# binutils other options
+#
+
+#
+# C-library
+#
+CT_LIBC="glibc"
+CT_LIBC_VERSION="2.12.2"
+CT_LIBC_glibc=y
+# CT_LIBC_musl is not set
+# CT_LIBC_uClibc is not set
+CT_LIBC_avr_libc_AVAILABLE=y
+CT_LIBC_glibc_AVAILABLE=y
+CT_THREADS="nptl"
+# CT_CC_GLIBC_SHOW_LINARO is not set
+# CT_LIBC_GLIBC_V_2_22 is not set
+# CT_LIBC_GLIBC_V_2_21 is not set
+# CT_LIBC_GLIBC_V_2_20 is not set
+# CT_LIBC_GLIBC_V_2_19 is not set
+# CT_LIBC_GLIBC_V_2_18 is not set
+# CT_LIBC_GLIBC_V_2_17 is not set
+# CT_LIBC_GLIBC_V_2_16_0 is not set
+# CT_LIBC_GLIBC_V_2_15 is not set
+# CT_LIBC_GLIBC_V_2_14_1 is not set
+# CT_LIBC_GLIBC_V_2_14 is not set
+# CT_LIBC_GLIBC_V_2_13 is not set
+CT_LIBC_GLIBC_V_2_12_2=y
+# CT_LIBC_GLIBC_V_2_12_1 is not set
+# CT_LIBC_GLIBC_V_2_11_1 is not set
+# CT_LIBC_GLIBC_V_2_11 is not set
+# CT_LIBC_GLIBC_V_2_10_1 is not set
+# CT_LIBC_GLIBC_V_2_9 is not set
+# CT_LIBC_GLIBC_V_2_8 is not set
+CT_LIBC_mingw_AVAILABLE=y
+CT_LIBC_musl_AVAILABLE=y
+CT_LIBC_newlib_AVAILABLE=y
+CT_LIBC_none_AVAILABLE=y
+CT_LIBC_uClibc_AVAILABLE=y
+CT_LIBC_SUPPORT_THREADS_ANY=y
+CT_LIBC_SUPPORT_THREADS_NATIVE=y
+
+#
+# Common C library options
+#
+CT_THREADS_NATIVE=y
+CT_LIBC_XLDD=y
+
+#
+# glibc other options
+#
+CT_LIBC_GLIBC_PORTS_EXTERNAL=y
+CT_LIBC_glibc_familly=y
+CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY=""
+CT_LIBC_GLIBC_CONFIGPARMS=""
+CT_LIBC_GLIBC_EXTRA_CFLAGS=""
+CT_LIBC_EXTRA_CC_ARGS=""
+# CT_LIBC_DISABLE_VERSIONING is not set
+CT_LIBC_OLDEST_ABI=""
+CT_LIBC_GLIBC_FORCE_UNWIND=y
+# CT_LIBC_GLIBC_USE_PORTS is not set
+CT_LIBC_ADDONS_LIST=""
+# CT_LIBC_LOCALES is not set
+# CT_LIBC_GLIBC_KERNEL_VERSION_NONE is not set
+CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS=y
+# CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN is not set
+CT_LIBC_GLIBC_MIN_KERNEL="2.6.32.68"
+
+#
+# C compiler
+#
+CT_CC="gcc"
+CT_CC_CORE_PASSES_NEEDED=y
+CT_CC_CORE_PASS_1_NEEDED=y
+CT_CC_CORE_PASS_2_NEEDED=y
+CT_CC_gcc=y
+# CT_CC_GCC_SHOW_LINARO is not set
+# CT_CC_GCC_V_5_2_0 is not set
+CT_CC_GCC_V_4_9_3=y
+# CT_CC_GCC_V_4_8_5 is not set
+# CT_CC_GCC_V_4_7_4 is not set
+# CT_CC_GCC_V_4_6_4 is not set
+# CT_CC_GCC_V_4_5_4 is not set
+# CT_CC_GCC_V_4_4_7 is not set
+# CT_CC_GCC_V_4_3_6 is not set
+# CT_CC_GCC_V_4_2_4 is not set
+CT_CC_GCC_4_2_or_later=y
+CT_CC_GCC_4_3_or_later=y
+CT_CC_GCC_4_4_or_later=y
+CT_CC_GCC_4_5_or_later=y
+CT_CC_GCC_4_6_or_later=y
+CT_CC_GCC_4_7_or_later=y
+CT_CC_GCC_4_8_or_later=y
+CT_CC_GCC_4_9=y
+CT_CC_GCC_4_9_or_later=y
+CT_CC_GCC_HAS_GRAPHITE=y
+CT_CC_GCC_USE_GRAPHITE=y
+CT_CC_GCC_HAS_LTO=y
+CT_CC_GCC_USE_LTO=y
+CT_CC_GCC_HAS_PKGVERSION_BUGURL=y
+CT_CC_GCC_HAS_BUILD_ID=y
+CT_CC_GCC_HAS_LNK_HASH_STYLE=y
+CT_CC_GCC_USE_GMP_MPFR=y
+CT_CC_GCC_USE_MPC=y
+CT_CC_GCC_HAS_LIBQUADMATH=y
+CT_CC_GCC_HAS_LIBSANITIZER=y
+CT_CC_GCC_VERSION="4.9.3"
+# CT_CC_LANG_FORTRAN is not set
+CT_CC_GCC_ENABLE_CXX_FLAGS=""
+CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY=""
+CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-arch=z10"
+CT_CC_GCC_EXTRA_ENV_ARRAY=""
+CT_CC_GCC_STATIC_LIBSTDCXX=y
+# CT_CC_GCC_SYSTEM_ZLIB is not set
+
+#
+# Optimisation features
+#
+
+#
+# Settings for libraries running on target
+#
+CT_CC_GCC_ENABLE_TARGET_OPTSPACE=y
+# CT_CC_GCC_LIBMUDFLAP is not set
+# CT_CC_GCC_LIBGOMP is not set
+# CT_CC_GCC_LIBSSP is not set
+# CT_CC_GCC_LIBQUADMATH is not set
+# CT_CC_GCC_LIBSANITIZER is not set
+
+#
+# Misc. obscure options.
+#
+CT_CC_CXA_ATEXIT=y
+# CT_CC_GCC_DISABLE_PCH is not set
+CT_CC_GCC_SJLJ_EXCEPTIONS=m
+CT_CC_GCC_LDBL_128=m
+# CT_CC_GCC_BUILD_ID is not set
+CT_CC_GCC_LNK_HASH_STYLE_DEFAULT=y
+# CT_CC_GCC_LNK_HASH_STYLE_SYSV is not set
+# CT_CC_GCC_LNK_HASH_STYLE_GNU is not set
+# CT_CC_GCC_LNK_HASH_STYLE_BOTH is not set
+CT_CC_GCC_LNK_HASH_STYLE=""
+CT_CC_GCC_DEC_FLOAT_AUTO=y
+# CT_CC_GCC_DEC_FLOAT_BID is not set
+# CT_CC_GCC_DEC_FLOAT_DPD is not set
+# CT_CC_GCC_DEC_FLOATS_NO is not set
+CT_CC_SUPPORT_CXX=y
+CT_CC_SUPPORT_FORTRAN=y
+CT_CC_SUPPORT_JAVA=y
+CT_CC_SUPPORT_ADA=y
+CT_CC_SUPPORT_OBJC=y
+CT_CC_SUPPORT_OBJCXX=y
+CT_CC_SUPPORT_GOLANG=y
+
+#
+# Additional supported languages:
+#
+CT_CC_LANG_CXX=y
+# CT_CC_LANG_JAVA is not set
+
+#
+# Debug facilities
+#
+# CT_DEBUG_dmalloc is not set
+# CT_DEBUG_duma is not set
+# CT_DEBUG_gdb is not set
+# CT_DEBUG_ltrace is not set
+# CT_DEBUG_strace is not set
+
+#
+# Companion libraries
+#
+CT_COMPLIBS_NEEDED=y
+CT_LIBICONV_NEEDED=y
+CT_GETTEXT_NEEDED=y
+CT_GMP_NEEDED=y
+CT_MPFR_NEEDED=y
+CT_ISL_NEEDED=y
+CT_CLOOG_NEEDED=y
+CT_MPC_NEEDED=y
+CT_COMPLIBS=y
+CT_LIBICONV=y
+CT_GETTEXT=y
+CT_GMP=y
+CT_MPFR=y
+CT_ISL=y
+CT_CLOOG=y
+CT_MPC=y
+CT_LIBICONV_V_1_14=y
+CT_LIBICONV_VERSION="1.14"
+CT_GETTEXT_V_0_19_6=y
+CT_GETTEXT_VERSION="0.19.6"
+CT_GMP_V_6_0_0=y
+# CT_GMP_V_5_1_3 is not set
+# CT_GMP_V_5_1_1 is not set
+# CT_GMP_V_5_0_2 is not set
+# CT_GMP_V_5_0_1 is not set
+# CT_GMP_V_4_3_2 is not set
+# CT_GMP_V_4_3_1 is not set
+# CT_GMP_V_4_3_0 is not set
+CT_GMP_5_0_2_or_later=y
+CT_GMP_VERSION="6.0.0a"
+CT_MPFR_V_3_1_3=y
+# CT_MPFR_V_3_1_2 is not set
+# CT_MPFR_V_3_1_0 is not set
+# CT_MPFR_V_3_0_1 is not set
+# CT_MPFR_V_3_0_0 is not set
+# CT_MPFR_V_2_4_2 is not set
+# CT_MPFR_V_2_4_1 is not set
+# CT_MPFR_V_2_4_0 is not set
+CT_MPFR_VERSION="3.1.3"
+CT_ISL_V_0_14=y
+CT_ISL_V_0_14_or_later=y
+CT_ISL_V_0_12_or_later=y
+CT_ISL_VERSION="0.14"
+CT_CLOOG_V_0_18_4=y
+# CT_CLOOG_V_0_18_1 is not set
+# CT_CLOOG_V_0_18_0 is not set
+CT_CLOOG_VERSION="0.18.4"
+CT_CLOOG_0_18_4_or_later=y
+CT_CLOOG_0_18_or_later=y
+CT_MPC_V_1_0_3=y
+# CT_MPC_V_1_0_2 is not set
+# CT_MPC_V_1_0_1 is not set
+# CT_MPC_V_1_0 is not set
+# CT_MPC_V_0_9 is not set
+# CT_MPC_V_0_8_2 is not set
+# CT_MPC_V_0_8_1 is not set
+# CT_MPC_V_0_7 is not set
+CT_MPC_VERSION="1.0.3"
+
+#
+# Companion libraries common options
+#
+# CT_COMPLIBS_CHECK is not set
+
+#
+# Companion tools
+#
+
+#
+# READ HELP before you say 'Y' below !!!
+#
+# CT_COMP_TOOLS is not set