clang: Link lld against tcmalloc.

tools/clang/scripts/package.py

 #!/usr/bin/env python
 # Copyright (c) 2015 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.
 
 """This script will check out llvm and clang, and then package the results up
 to a tgz file."""
 
 import argparse
 import fnmatch
 import itertools
 import os
 import shutil
 import subprocess
 import sys
 import tarfile
 
 # Path constants.
 THIS_DIR = os.path.dirname(__file__)
 CHROMIUM_DIR = os.path.abspath(os.path.join(THIS_DIR, '..', '..', '..'))
 THIRD_PARTY_DIR = os.path.join(THIS_DIR, '..', '..', '..', 'third_party')
 LLVM_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm')
 LLVM_BOOTSTRAP_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm-bootstrap')
 LLVM_BOOTSTRAP_INSTALL_DIR = os.path.join(THIRD_PARTY_DIR,
                                           'llvm-bootstrap-install')
 LLVM_BUILD_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm-build')
 LLVM_RELEASE_DIR = os.path.join(LLVM_BUILD_DIR, 'Release+Asserts')
 LLVM_LTO_GOLD_PLUGIN_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm-lto-gold-plugin')
+BINUTILS_LIB_DIR = os.path.join(THIRD_PARTY_DIR, 'binutils', 'Linux_x64',
+                                'Release', 'lib')
 STAMP_FILE = os.path.join(LLVM_BUILD_DIR, 'cr_build_revision')
 
 
 def Tee(output, logfile):
   logfile.write(output)
   print output,
 
 
 def TeeCmd(cmd, logfile, fail_hard=True):
   """Runs cmd and writes the output to both stdout and logfile."""
@@ skipping 276 matching lines @@
     os.symlink('clang', os.path.join(pdir, 'bin', 'clang-cl'))
 
   if sys.platform.startswith('linux'):
     os.symlink('lld', os.path.join(pdir, 'bin', 'ld.lld'))
 
   # Copy libc++ headers.
   if sys.platform == 'darwin':
     shutil.copytree(os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'include', 'c++'),
                     os.path.join(pdir, 'include', 'c++'))
 
+  # Copy tcmalloc from the binutils package.
+  # FIXME: We should eventually be building our own copy.
+  if sys.platform.startswith('linux'):
+    shutil.copy(os.path.join(BINUTILS_LIB_DIR, 'libtcmalloc_minimal.so.4'),
+                os.path.join(pdir, 'lib'))
+
   # Copy buildlog over.
   shutil.copy('buildlog.txt', pdir)
 
   # Create archive.
   tar_entries = ['bin', 'lib', 'buildlog.txt']
   if sys.platform == 'darwin':
     tar_entries += ['include']
   with tarfile.open(pdir + '.tgz', 'w:gz') as tar:
     for entry in tar_entries:
       tar.add(os.path.join(pdir, entry), arcname=entry, filter=PrintTarProgress)
@@ skipping 23 matching lines @@
   MaybeUpload(args, objdumpdir, platform)
 
   if sys.platform == 'win32' and args.upload:
     UploadPDBToSymbolServer()
 
   # FIXME: Warn if the file already exists on the server.
 
 
 if __name__ == '__main__':
   sys.exit(main())