Added Dockerfiles to build clang from sources.

Reviewers: klimek, chandlerc, mehdi_amini

Reviewed By: klimek, mehdi_amini

Subscribers: mehdi_amini, jlebar, llvm-commits

Differential Revision: https://reviews.llvm.org/D34197

llvm-svn: 306810

1 files changed, 169 insertions, 0 deletions

diff --git a/llvm/utils/docker/scripts/build_install_llvm.sh b/llvm/utils/docker/scripts/build_install_llvm.sh
new file mode 100755
index 00000000000..7e0e9065741
--- /dev/null
+++ b/llvm/utils/docker/scripts/build_install_llvm.sh
@@ -0,0 +1,169 @@
+#!/usr/bin/env bash
+#===- llvm/utils/docker/scripts/build_install_llvm.sh ---------------------===//
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+#===-----------------------------------------------------------------------===//
+
+set -e
+
+function show_usage() {
+  usage=$(cat << EOF
+Usage: build_install_llvm.sh [options] -- [cmake-args]
+
+Checkout svn sources and run cmake with the specified arguments. Used
+inside docker container.
+Passes additional -DCMAKE_INSTALL_PREFIX and archives the contents of
+the directory to /tmp/clang.tar.gz.
+
+Available options:
+  -h|--help           show this help message
+  -b|--branch         svn branch to checkout, i.e. 'trunk',
+                      'branches/release_40'
+                      (default: 'trunk')
+  -r|--revision       svn revision to checkout
+  -p|--llvm-project   name of an svn project to checkout. Will also add the
+                      project to a list LLVM_ENABLE_PROJECTS, passed to CMake.
+                      For clang, please use 'clang', not 'cfe'.
+                      Project 'llvm' is always included and ignored, if
+                      specified.
+                      Can be specified multiple times.
+  -i|--install-target name of a cmake install target to build and include in
+                      the resulting archive. Can be specified multiple times.
+Required options: At least one --install-target.
+
+All options after '--' are passed to CMake invocation.
+EOF
+)
+  echo "$usage"
+}
+
+LLVM_SVN_REV=""
+LLVM_BRANCH=""
+CMAKE_ARGS=""
+CMAKE_INSTALL_TARGETS=""
+# We always checkout llvm
+LLVM_PROJECTS="llvm"
+CMAKE_LLVM_ENABLE_PROJECTS=""
+
+function contains_project() {
+  local TARGET_PROJ="$1"
+  local PROJ
+  for PROJ in $LLVM_PROJECTS; do
+    if [ "$PROJ" == "$TARGET_PROJ" ]; then
+      return 0
+    fi
+  done
+  return 1
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    -r|--revision)
+      shift
+      LLVM_SVN_REV="$1"
+      ;;
+    -b|--branch)
+      shift
+      LLVM_BRANCH="$1"
+      shift
+      ;;
+    -p|--llvm-project)
+      shift
+      PROJ="$1"
+      if [ "$PROJ" == "cfe" ]; then
+        PROJ="clang"
+      fi
+      if ! contains_project "$PROJ" ; then
+        LLVM_PROJECTS="$LLVM_PROJECTS $PROJ"
+        CMAKE_LLVM_ENABLE_PROJECTS="$CMAKE_LLVM_ENABLED_PROJECTS;$PROJ"
+      else
+        echo "Project '$PROJ' is already enabled, ignoring extra occurences."
+      fi
+      shift
+      ;;
+    -i|--install-target)
+      shift
+      CMAKE_INSTALL_TARGETS="$CMAKE_INSTALL_TARGETS $1"
+      shift
+      ;;
+    --)
+      shift
+      CMAKE_ARGS="$*"
+      shift $#
+      ;;
+    -h|--help)
+      show_usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown option: $1"
+      exit 1
+  esac
+done
+
+if [ "$CMAKE_INSTALL_TARGETS" == "" ]; then
+  echo "No install targets. Please pass one or more --install-target."
+  exit 1
+fi
+
+if [ "$LLVM_BRANCH" == "" ]; then
+  LLVM_BRANCH="trunk"
+fi
+
+if [ "$LLVM_SVN_REVISION" != "" ]; then
+  SVN_REV_ARG="-r$LLVM_SVN_REVISION"
+else
+  SVN_REV_ARG=""
+fi
+
+CLANG_BUILD_DIR=/tmp/clang-build
+CLANG_INSTALL_DIR=/tmp/clang-install
+
+mkdir "$CLANG_BUILD_DIR"
+
+# Get the sources from svn.
+echo "Checking out sources from svn"
+mkdir "$CLANG_BUILD_DIR/src"
+for LLVM_PROJECT in $LLVM_PROJECTS; do
+  if [ "$LLVM_PROJECT" == "clang" ]; then
+    SVN_PROJECT="cfe"
+  else
+    SVN_PROJECT="$LLVM_PROJECT"
+  fi
+
+  echo "Checking out http://llvm.org/svn/llvm-project/$SVN_PROJECT to $CLANG_BUILD_DIR/src/$LLVM_PROJECT"
+  # FIXME: --trust-server-cert is required to workaround 'SSL issuer is not
+  #        trusted' error. Using https seems preferable to http either way,
+  #        albeit this is not secure.
+  svn co -q $SVN_REV_ARG --trust-server-cert \
+    "https://llvm.org/svn/llvm-project/$SVN_PROJECT/$LLVM_BRANCH" \
+    "$CLANG_BUILD_DIR/src/$LLVM_PROJECT"
+done
+
+pushd "$CLANG_BUILD_DIR"
+
+# Run the build as specified in the build arguments.
+echo "Running build"
+mkdir "$CLANG_BUILD_DIR/build"
+cmake -GNinja \
+  -DCMAKE_INSTALL_PREFIX="$CLANG_INSTALL_DIR" \
+  -DLLVM_ENABLE_PROJECTS="$CMAKE_LLVM_ENABLE_PROJECTS" \
+  $CMAKE_ARGS \
+  "$CLANG_BUILD_DIR/src/llvm"
+ninja $CMAKE_INSTALL_TARGETS
+
+popd
+
+# Pack the installed clang into an archive.
+echo "Archiving clang installation to /tmp/clang.tar.gz"
+cd "$CLANG_INSTALL_DIR"
+tar -czf /tmp/clang.tar.gz *
+
+# Cleanup.
+rm -rf "$CLANG_BUILD_DIR" "$CLANG_INSTALL_DIR"
+
+echo "Done"