#!/bin/sh

# Copyright (c) 2009-2010 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Script to build ThreadSanitizer binaries for use with chromium
source common.sh

POST_BUILD_HOOK_DEFINED=yes
post_build_hook() {
  PLATFORM=$1
  cd "$THISDIR/tsan/tsan"

  SPECIAL_TARGET=
  SPECIAL_FLAGS=
  # We can build two target architectures on a Linux x64 machine, so we should
  # a) Use separate output directories,
  # b) Explicitly specify 32-bit linux for x86 build.
  case "$PLATFORM" in
    "linux_x64")
      SPECIAL_FLAGS="OUTDIR=out64"
    ;;
    "linux_x86")
      SPECIAL_FLAGS="OUTDIR=out32"
      SPECIAL_TARGET="l32"
    ;;
  esac

  make -j4 $SPECIAL_FLAGS OFFLINE= PIN_ROOT= \
           VALGRIND_INST_ROOT="$BINARIES_DIR/$PLATFORM" \
           VALGRIND_ROOT="$VG_TSAN_DIR" $SPECIAL_TARGET

  OUT_BIN="$ORIG_BINARIES_DIR/$PLATFORM/bin"
  mkdir -p $OUT_BIN
  # See below for the definition of ORIG_BINARIES_DIR
  $THISDIR/tsan/tsan/mk-self-contained-valgrind.sh \
    "$VG_TSAN_DIR/out/$PLATFORM" "tsan" \
    "$OUT_BIN/valgrind-tsan.sh"
}

TSAN_REV=2200
TSAN_DIR="$THISDIR/tsan" # Directory to checkout TSan sources
rm -rf $TSAN_DIR
svn co -r "$TSAN_REV" http://data-race-test.googlecode.com/svn/trunk $TSAN_DIR

# The separate .sh file defines Valgrind/VEX revisions.
source "tsan/third_party/valgrind_rev.sh"

VG_TSAN_DIR="$THISDIR/valgrind-tsan" # Directory to checkout Valgrind sources
checkout_and_patch_valgrind "$VALGRIND_REV" "$VEX_REV" "$VG_TSAN_DIR"

cd "$VG_TSAN_DIR"

# Apply TSan-specific patches except
# * limits
# * guest_amd64_toIR
# since they are already applied in common.sh.
rm "$THISDIR"/tsan/valgrind_patches/{limits,guest_amd64_toIR}.patch
for P in "$THISDIR"/tsan/valgrind_patches/*.patch
do
  patch -p0 -i $P
done

if [ `uname -s` == "Darwin" ]
then
  if ls /opt/local/bin/ | grep "^gcc-mp-4\.4" >/dev/null
  then
    export GCC_BINARY_MASK="/opt/local/bin/XXX-mp-4.4"
    export PATH="$THISDIR/macports-gcc-wrapper:$PATH"
    echo "Using gcc-4.4 from MacPorts to build ThreadSanitizer."
  elif gcc --version | grep " 4\.[0-3]\.[0-9]\| 3\.[0-9]\.[0-9]" >/dev/null
  then
    echo "Your gcc version is older than 4.4."
    echo "It is recommended to use gcc-4.4 from MacPorts for building"
    echo "ThreadSanitizer, especially if you plan to commit binaries into SVN."
    echo "See http://gcc44.darwinports.com/ for getting gcc-4.4"
    echo ""
    echo -n "Do you want to continue using old gcc? (y/N)"
    read CONFIRMATION
    if [ "$CONFIRMATION" != "y" ]
    then
      exit 1
    fi
  fi
fi

# Ugly hack!
# We build Valrgind binaries in the $VG_TSAN_DIR/out and then pack
# them into self-contained .sh file into $ORIG_BINARIES_DIR/$PLATFORM
ORIG_BINARIES_DIR=$BINARIES_DIR
BINARIES_DIR="$VG_TSAN_DIR/out"
build_valgrind_for_available_platforms