Check in LLVM r95781.

3 files changed, 278 insertions, 0 deletions

diff --git a/utils/crosstool/ARM/README b/utils/crosstool/ARM/README
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+HOWTO create an LLVM crosstool from x86_64/Linux to ARM/Linux
+=============================================================
+
+1. % llvm/utils/crosstool/create-snapshots.sh
+
+   This will create llvm-[REV_L].tar.bz2 and llvm-gcc-4.2-[REV_G].tar.bz2,
+   where:
+     REV_L is the revision at which "llvm" was checked out, and
+     REV_G is the revision at which "llvm-gcc-4.2" was checked out
+
+   Note that REV_L might REV_G might not be the same revision.
+
+2. Download CodeSourcery toolchain.  The exact location depends on your
+   $CROSS_TARGET but the script will tell you what the location of the file is
+   if you run it without having the file available.
+
+   For example, if you're using $CROSS_TARGET == "arm-none-linux-gnueabi" then
+   you need to download:
+
+   http://www.codesourcery.com/sgpp/lite/arm/portal/package1787/public/arm-none-linux-gnueabi/arm-2007q3-51-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
+
+   NOTE: simply changing $CROSS_TARGET and modifying the URL accordingly will
+   not work -- you'll need to go to http://www.codesourcery.com and find the
+   correct file, as the release number in the file will also be different (e.g.,
+   in the file above, the release number is "51").
+
+3. You can override most values in the script without modifying it, e.g.
+   $INSTALL_ROOT (if you want to install in directory other than /usr/local).
+
+   Run the script as:
+
+   % env INSTALL_ROOT=[dir to install in] \
+         CODE_SOURCERY_PKG_PATH=[dir where you downloaded CodeSourcery tarball] \
+         LLVM_PKG_PATH=[dir where you stored your LLVM and LLVM-GCC snapshots] \
+         LLVM_SVN_REV=${REV_L} \
+         LLVMGCC_SVN_REV=${REV_G} \
+         build-install-linux.sh
diff --git a/utils/crosstool/ARM/build-install-linux.sh b/utils/crosstool/ARM/build-install-linux.sh
new file mode 100755
index 0000000..f3f8df9
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+++ b/utils/crosstool/ARM/build-install-linux.sh
@@ -0,0 +1,200 @@
+#!/bin/bash
+#
+# Compiles and installs a Linux/x86_64 -> Linux/ARM crosstool based on LLVM and
+# LLVM-GCC-4.2 using SVN snapshots in provided tarballs.
+
+set -o nounset
+set -o errexit
+
+echo -n "Welcome to LLVM Linux/X86_64 -> Linux/ARM crosstool "
+echo "builder/installer; some steps will require sudo privileges."
+
+readonly INSTALL_ROOT="${INSTALL_ROOT:-/usr/local/crosstool}"
+# 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="${SCRATCH_ROOT}/obj"
+
+readonly CROSS_HOST="x86_64-unknown-linux-gnu"
+readonly CROSS_TARGET="arm-none-linux-gnueabi"
+readonly CROSS_MARCH="${CROSS_MARCH:-armv6}"
+
+readonly CODE_SOURCERY="${INSTALL_ROOT}/codesourcery"
+readonly CODE_SOURCERY_PKG_PATH="${CODE_SOURCERY_PKG_PATH:-${HOME}/codesourcery}"
+readonly CODE_SOURCERY_HTTP="http://www.codesourcery.com/sgpp/lite/arm/portal/package1787/public"
+readonly CODE_SOURCERY_PKG="arm-2007q3-51-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2"
+readonly CODE_SOURCERY_ROOT="${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}/${CROSS_TARGET}/libc"
+
+readonly LLVM_PKG_PATH="${LLVM_PKG_PATH:-${HOME}/llvm-project/snapshots}"
+
+# Latest SVN revisions known to be working in this configuration.
+readonly LLVM_DEFAULT_REV="74530"
+readonly LLVMGCC_DEFAULT_REV="74535"
+
+readonly LLVM_PKG="llvm-${LLVM_SVN_REV:-${LLVM_DEFAULT_REV}}.tar.bz2"
+readonly LLVM_SRC_DIR="${SRC_ROOT}/llvm"
+readonly LLVM_OBJ_DIR="${OBJ_ROOT}/llvm"
+readonly LLVM_INSTALL_DIR="${INSTALL_ROOT}/${CROSS_TARGET}/llvm"
+
+readonly LLVMGCC_PKG="llvm-gcc-4.2-${LLVMGCC_SVN_REV:-${LLVMGCC_DEFAULT_REV}}.tar.bz2"
+readonly LLVMGCC_SRC_DIR="${SRC_ROOT}/llvm-gcc-4.2"
+readonly LLVMGCC_OBJ_DIR="${OBJ_ROOT}/llvm-gcc-4.2"
+readonly LLVMGCC_INSTALL_DIR="${INSTALL_ROOT}/${CROSS_TARGET}/llvm-gcc-4.2"
+
+readonly MAKE_OPTS="${MAKE_OPTS:--j2}"
+
+# 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() {
+  # Unpack the tarball, creating the CodeSourcery dir, if necessary.
+  if [[ ! -d ${CODE_SOURCERY_ROOT} ]]; then
+    sudoCreateDir ${CODE_SOURCERY}
+    cd ${CODE_SOURCERY}
+    if [[ -e ${CODE_SOURCERY_PKG_PATH}/${CODE_SOURCERY_PKG} ]]; then
+      runCommand "Unpacking CodeSourcery in ${CODE_SOURCERY}" \
+          tar jxf ${CODE_SOURCERY_PKG_PATH}/${CODE_SOURCERY_PKG}
+    else
+      echo -n "CodeSourcery tarball not found in "
+      echo "${CODE_SOURCERY_PKG_PATH}/${CODE_SOURCERY_PKG}"
+      echo -n "Fix the path or download it from "
+      echo "${CODE_SOURCERY_HTTP}/${CROSS_TARGET}/${CODE_SOURCERY_PKG}"
+      exit
+    fi
+  else
+    echo "CodeSourcery install dir already exists; skipping."
+  fi
+
+  # Verify our CodeSourcery toolchain installation.
+  if [[ ! -d "${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() {
+  if [[ -d ${LLVM_INSTALL_DIR} ]]; then
+    echo "LLVM install dir ${LLVM_INSTALL_DIR} exists; skipping."
+    return
+  fi
+
+  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() {
+  if [[ -d ${LLVMGCC_INSTALL_DIR} ]]; then
+    echo "LLVM-GCC install dir ${LLVMGCC_INSTALL_DIR} exists; skipping."
+    return
+  fi
+
+  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-arch=${CROSS_MARCH} \
+      --with-as=${CROSS_TARGET_AS} \
+      --with-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 ${OBJ_ROOT}
+
+installCodeSourcery
+installLLVM
+installLLVMGCC
+
+echo "Done."
diff --git a/utils/crosstool/create-snapshots.sh b/utils/crosstool/create-snapshots.sh
new file mode 100755
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+++ b/utils/crosstool/create-snapshots.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# Creates LLVM SVN snapshots: llvm-$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 LLVM_PROJECT_SVN="http://llvm.org/svn/llvm-project"
+
+getLatestRevisionFromSVN() {
+  svn info ${LLVM_PROJECT_SVN} | egrep ^Revision | sed 's/^Revision: //'
+}
+
+readonly REV="${1:-$(getLatestRevisionFromSVN)}"
+
+createTarballFromSVN() {
+  local module=$1
+  local log="${module}.log"
+  echo "Running: svn export -r ${REV} ${module}; log in ${log}"
+  svn -q export -r ${REV} ${LLVM_PROJECT_SVN}/${module}/trunk \
+      ${module} > ${log} 2>&1
+
+  # Create "module-revision.tar.bz2" packages from the SVN checkout dirs.
+  local tarball="${module}-${REV}.tar.bz2"
+  echo "Creating tarball: ${tarball}"
+  tar cjf ${tarball} ${module}
+
+  echo "Cleaning up '${module}'"
+  rm -rf ${module} ${log}
+}
+
+for module in "llvm" "llvm-gcc-4.2"; do
+  createTarballFromSVN ${module}
+done
+