Added two scripts to aid with building Linux/x86 -> Linux/ARM crossto…

…ols, using

CodeSourcery's provided GCC-based crosstools, from which we use binutils.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73212 91177308-0d34-0410-b5e6-96231b3b80d8

utils/crosstool/ARM/build-install-linux.sh

@@ -0,0 +1,194 @@
+#!/bin/bash
+#
+# Compiles and installs a Linux/x86_64 -> Linux/ARM crosstool based on LLVM and
+# LLVM-GCC-4.2 using SVN snapshots in provided tarballs.
+
+set -o nounset
+set -o errexit
+
+echo -n "Welcome to LLVM Linux/X86_64 -> Linux/ARM crosstool "
+echo "builder/installer; some steps will require sudo privileges."
+
+readonly INSTALL_ROOT="${INSTALL_ROOT:-/usr/local}"
+# Both $USER and root *must* have read/write access to this dir.
+readonly SCRATCH_ROOT=$(mktemp -d "${TMPDIR:-/tmp}/llvm-project.XXXXXX")
+readonly SRC_ROOT="${SCRATCH_ROOT}/src"
+readonly OBJ_ROOT="${SCRATCH_ROOT}/obj"
+
+readonly CROSS_HOST="x86_64-unknown-linux-gnu"
+readonly CROSS_TARGET="arm-none-linux-gnueabi"
+
+readonly CODE_SOURCERY="${INSTALL_ROOT}/codesourcery"
+readonly CODE_SOURCERY_PKG_PATH="${CODE_SOURCERY_PKG_PATH:-${HOME}/codesourcery}"
+readonly CODE_SOURCERY_PKG="arm-2007q3-51-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2"
+readonly CODE_SOURCERY_ROOT="${CODE_SOURCERY}/arm-2007q3"
+readonly CODE_SOURCERY_BIN="${CODE_SOURCERY_ROOT}/bin"
+# Make sure ${CROSS_TARGET}-* binutils are in command path
+export PATH="${CODE_SOURCERY_BIN}:${PATH}"
+
+readonly CROSS_TARGET_AS="${CODE_SOURCERY_BIN}/${CROSS_TARGET}-as"
+readonly CROSS_TARGET_LD="${CODE_SOURCERY_BIN}/${CROSS_TARGET}-ld"
+
+readonly SYSROOT="${CODE_SOURCERY_ROOT}/${CROSS_TARGET}/libc"
+
+readonly LLVM_PROJECT="${INSTALL_ROOT}/llvm-project"
+readonly LLVM_INSTALL_ROOT="${LLVM_PROJECT}/${CROSS_HOST}/${CROSS_TARGET}"
+readonly LLVM_PKG_PATH="${LLVM_PKG_PATH:-${HOME}/llvm-project/snapshots}"
+
+# Latest SVN revision known to be working in this configuration.
+readonly LLVM_DEFAULT_REV="70786"
+
+readonly LLVM_PKG="llvm-${LLVM_SVN_REV:-${LLVM_DEFAULT_REV}}.tar.bz2"
+readonly LLVM_SRC_DIR="${SRC_ROOT}/llvm"
+readonly LLVM_OBJ_DIR="${OBJ_ROOT}/llvm"
+readonly LLVM_INSTALL_DIR="${LLVM_INSTALL_ROOT}/llvm"
+
+readonly LLVMGCC_PKG="llvm-gcc-4.2-${LLVMGCC_SVN_REV:-${LLVM_DEFAULT_REV}}.tar.bz2"
+readonly LLVMGCC_SRC_DIR="${SRC_ROOT}/llvm-gcc-4.2"
+readonly LLVMGCC_OBJ_DIR="${OBJ_ROOT}/llvm-gcc-4.2"
+readonly LLVMGCC_INSTALL_DIR="${LLVM_INSTALL_ROOT}/llvm-gcc-4.2"
+
+readonly MAKE_OPTS="-j2"
+
+# Verify we aren't going to install into an existing directory as this might
+# create problems as we won't have a clean install.
+verifyNotDir() {
+  if [[ -d $1 ]]; then
+    echo "Install dir $1 already exists; remove it to continue."
+    exit
+  fi
+}
+
+# Params:
+#   $1: directory to be created
+#   $2: optional mkdir command prefix, e.g. "sudo"
+createDir() {
+  if [[ ! -e $1 ]]; then
+    ${2:-} mkdir -p $1
+  elif [[ -e $1 && ! -d $1 ]]; then
+    echo "$1 exists but is not a directory; exiting."
+    exit 3
+  fi
+}
+
+sudoCreateDir() {
+  createDir $1 sudo
+  sudo chown ${USER} $1
+}
+
+# Prints out and runs the command, but without logging -- intended for use with
+# lightweight commands that don't have useful output to parse, e.g. mkdir, tar,
+# etc.
+runCommand() {
+  local message="$1"
+  shift
+  echo "=> $message"
+  echo "==> Running: $*"
+  $*
+}
+
+runAndLog() {
+  local message="$1"
+  local log_file="$2"
+  shift 2
+  echo "=> $message; log in $log_file"
+  echo "==> Running: $*"
+  # Pop-up a terminal with the output of the current command?
+  # e.g.: xterm -e /bin/bash -c "$* >| tee $log_file"
+  $* &> $log_file
+  if [[ $? != 0 ]]; then
+    echo "Error occurred: see most recent log file for details."
+    exit
+  fi
+}
+
+installCodeSourcery() {
+  # Create CodeSourcery dir, if necessary.
+  verifyNotDir ${CODE_SOURCERY}
+  sudoCreateDir ${CODE_SOURCERY}
+
+  # Unpack the tarball.
+  if [[ ! -d ${CODE_SOURCERY_ROOT} ]]; then
+    cd ${CODE_SOURCERY}
+    runCommand "Unpacking CodeSourcery in ${CODE_SOURCERY}" \
+        tar jxf ${CODE_SOURCERY_PKG_PATH}/${CODE_SOURCERY_PKG}
+  else
+    echo "CodeSourcery install dir already exists."
+  fi
+
+  # Verify our CodeSourcery toolchain installation.
+  if [[ ! -d "${SYSROOT}" ]]; then
+    echo -n "Error: CodeSourcery does not contain libc for ${CROSS_TARGET}: "
+    echo "${SYSROOT} not found."
+    exit
+  fi
+
+  for tool in ${CROSS_TARGET_AS} ${CROSS_TARGET_LD}; do
+    if [[ ! -e $tool ]]; then
+      echo "${tool} not found; exiting."
+      exit
+    fi
+  done
+}
+
+installLLVM() {
+  verifyNotDir ${LLVM_INSTALL_DIR}
+  sudoCreateDir ${LLVM_INSTALL_DIR}
+
+  # Unpack LLVM tarball; should create the directory "llvm".
+  cd ${SRC_ROOT}
+  runCommand "Unpacking LLVM" tar jxf ${LLVM_PKG_PATH}/${LLVM_PKG}
+
+  # Configure, build, and install LLVM.
+  createDir ${LLVM_OBJ_DIR}
+  cd ${LLVM_OBJ_DIR}
+  runAndLog "Configuring LLVM" ${LLVM_OBJ_DIR}/llvm-configure.log \
+      ${LLVM_SRC_DIR}/configure \
+      --disable-jit \
+      --enable-optimized \
+      --prefix=${LLVM_INSTALL_DIR} \
+      --target=${CROSS_TARGET} \
+      --with-llvmgccdir=${LLVMGCC_INSTALL_DIR}
+  runAndLog "Building LLVM" ${LLVM_OBJ_DIR}/llvm-build.log \
+      make ${MAKE_OPTS}
+  runAndLog "Installing LLVM" ${LLVM_OBJ_DIR}/llvm-install.log \
+      make ${MAKE_OPTS} install
+}
+
+installLLVMGCC() {
+  verifyNotDir ${LLVMGCC_INSTALL_DIR}
+  sudoCreateDir ${LLVMGCC_INSTALL_DIR}
+
+  # Unpack LLVM-GCC tarball; should create the directory "llvm-gcc-4.2".
+  cd ${SRC_ROOT}
+  runCommand "Unpacking LLVM-GCC" tar jxf ${LLVM_PKG_PATH}/${LLVMGCC_PKG}
+
+  # Configure, build, and install LLVM-GCC.
+  createDir ${LLVMGCC_OBJ_DIR}
+  cd ${LLVMGCC_OBJ_DIR}
+  runAndLog "Configuring LLVM-GCC" ${LLVMGCC_OBJ_DIR}/llvmgcc-configure.log \
+      ${LLVMGCC_SRC_DIR}/configure \
+      --enable-languages=c,c++ \
+      --enable-llvm=${LLVM_INSTALL_DIR} \
+      --prefix=${LLVMGCC_INSTALL_DIR} \
+      --program-prefix=llvm- \
+      --target=${CROSS_TARGET} \
+      --with-gnu-as=${CROSS_TARGET_AS} \
+      --with-gnu-ld=${CROSS_TARGET_LD} \
+      --with-sysroot=${SYSROOT}
+  runAndLog "Building LLVM-GCC" ${LLVMGCC_OBJ_DIR}/llvmgcc-build.log \
+      make
+  runAndLog "Installing LLVM-GCC" ${LLVMGCC_OBJ_DIR}/llvmgcc-install.log \
+      make install
+}
+
+echo "Building in ${SCRATCH_ROOT}; installing in ${INSTALL_ROOT}"
+
+createDir ${SRC_ROOT}
+createDir ${OBJ_ROOT}
+
+installCodeSourcery
+installLLVM
+installLLVMGCC
+
+echo "Done."

utils/crosstool/create-snapshots.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# Creates LLVM SVN snapshots: llvm-$REV.tar.bz2 and llvm-gcc-4.2-$REV.tar.bz2,
+# where $REV is an SVN revision of LLVM.  This is used for creating stable
+# tarballs which can be used to build known-to-work crosstools.
+#
+# Syntax:
+#   $0 [REV] -- grabs the revision $REV from SVN; if not specified, grabs the
+#   latest SVN revision.
+
+set -o nounset
+set -o errexit
+
+readonly REV="${1:-HEAD}"
+
+runOnModule() {
+  local module=$1
+  local log="${module}.log"
+  echo "Running: svn co -r ${REV} ${module}; log in ${log}"
+  svn co -r ${REV} http://llvm.org/svn/llvm-project/${module}/trunk ${module} \
+      > ${log} 2>&1
+
+  # Delete all the ".svn" dirs; they take quite a lot of space.
+  echo "Cleaning up .svn dirs"
+  find ${module} -type d -name \.svn -print0 | xargs -0 /bin/rm -rf
+
+  # Create "module-revision.tar.bz2" packages from the SVN checkout dirs.
+  local revision=$(grep "Checked out revision" ${log} | \
+                   sed 's/[^0-9]\+\([0-9]\+\)[^0-9]\+/\1/')
+  local tarball="${module}-${revision}.tar.bz2"
+  echo "Creating tarball: ${tarball}"
+  tar cjf ${tarball} ${module}
+
+  echo "Cleaning SVN checkout dir ${module}"
+  rm -rf ${module} ${log}
+}
+
+for module in "llvm" "llvm-gcc-4.2"; do
+  runOnModule ${module}
+done
+