1#!/usr/bin/env bash
2
3# Copyright 2013 the V8 project authors. All rights reserved.
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met:
7#
8#     * Redistributions of source code must retain the above copyright
9#       notice, this list of conditions and the following disclaimer.
10#     * Redistributions in binary form must reproduce the above
11#       copyright notice, this list of conditions and the following
12#       disclaimer in the documentation and/or other materials provided
13#       with the distribution.
14#     * Neither the name of Google Inc. nor the names of its
15#       contributors may be used to endorse or promote products derived
16#       from this software without specific prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30# This script will build libgcmole.so. Building a recent clang needs a
31# recent GCC, so if you explicitly want to use GCC 4.8, use:
32#
33#    CC=gcc-4.8 CPP=cpp-4.8 CXX=g++-4.8 CXXFLAGS=-static-libstdc++ CXXCPP=cpp-4.8 ./bootstrap.sh
34
35CLANG_RELEASE=3.5
36
37THIS_DIR="$(dirname "${0}")"
38LLVM_DIR="${THIS_DIR}/../../third_party/llvm"
39CLANG_DIR="${LLVM_DIR}/tools/clang"
40
41LLVM_REPO_URL=${LLVM_URL:-https://llvm.org/svn/llvm-project}
42
43# Die if any command dies.
44set -e
45
46OS="$(uname -s)"
47
48# Xcode and clang don't get along when predictive compilation is enabled.
49# http://crbug.com/96315
50if [[ "${OS}" = "Darwin" ]] && xcodebuild -version | grep -q 'Xcode 3.2' ; then
51  XCONF=com.apple.Xcode
52  if [[ "${GYP_GENERATORS}" != "make" ]] && \
53     [ "$(defaults read "${XCONF}" EnablePredictiveCompilation)" != "0" ]; then
54    echo
55    echo "          HEARKEN!"
56    echo "You're using Xcode3 and you have 'Predictive Compilation' enabled."
57    echo "This does not work well with clang (http://crbug.com/96315)."
58    echo "Disable it in Preferences->Building (lower right), or run"
59    echo "    defaults write ${XCONF} EnablePredictiveCompilation -boolean NO"
60    echo "while Xcode is not running."
61    echo
62  fi
63
64  SUB_VERSION=$(xcodebuild -version | sed -Ene 's/Xcode 3\.2\.([0-9]+)/\1/p')
65  if [[ "${SUB_VERSION}" < 6 ]]; then
66    echo
67    echo "          YOUR LD IS BUGGY!"
68    echo "Please upgrade Xcode to at least 3.2.6."
69    echo
70  fi
71fi
72
73echo Getting LLVM r"${CLANG_RELEASE}" in "${LLVM_DIR}"
74if ! svn co --force \
75    "${LLVM_REPO_URL}/llvm/branches/release_${CLANG_RELEASE/./}" \
76    "${LLVM_DIR}"; then
77  echo Checkout failed, retrying
78  rm -rf "${LLVM_DIR}"
79  svn co --force \
80      "${LLVM_REPO_URL}/llvm/branches/release_${CLANG_RELEASE/./}" \
81      "${LLVM_DIR}"
82fi
83
84echo Getting clang r"${CLANG_RELEASE}" in "${CLANG_DIR}"
85svn co --force \
86    "${LLVM_REPO_URL}/cfe/branches/release_${CLANG_RELEASE/./}" \
87    "${CLANG_DIR}"
88
89# Echo all commands
90set -x
91
92NUM_JOBS=3
93if [[ "${OS}" = "Linux" ]]; then
94  NUM_JOBS="$(grep -c "^processor" /proc/cpuinfo)"
95elif [ "${OS}" = "Darwin" ]; then
96  NUM_JOBS="$(sysctl -n hw.ncpu)"
97fi
98
99# Build clang.
100cd "${LLVM_DIR}"
101if [[ ! -f ./config.status ]]; then
102  ../llvm/configure \
103      --enable-optimized \
104      --disable-threads \
105      --disable-pthreads \
106      --without-llvmgcc \
107      --without-llvmgxx
108fi
109
110MACOSX_DEPLOYMENT_TARGET=10.5 make -j"${NUM_JOBS}"
111STRIP_FLAGS=
112if [ "${OS}" = "Darwin" ]; then
113  # See http://crbug.com/256342
114  STRIP_FLAGS=-x
115fi
116strip ${STRIP_FLAGS} Release+Asserts/bin/clang
117cd -
118
119# Build libgcmole.so
120make -C "${THIS_DIR}" clean
121make -C "${THIS_DIR}" LLVM_SRC_ROOT="${LLVM_DIR}" libgcmole.so
122
123set +x
124
125echo
126echo You can now run gcmole using this command:
127echo
128echo CLANG_BIN=\"third_party/llvm/Release+Asserts/bin\" lua tools/gcmole/gcmole.lua
129echo
130