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"""llvm
Tool-specific initialization for LLVM
"""
#
# Copyright (c) 2009 VMware, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
import os
import os.path
import subprocess
import SCons.Action
import SCons.Errors
import SCons.Util
def generate(env):
try:
llvm_dir = os.environ['LLVM']
except KeyError:
# Do nothing -- use the system headers/libs
pass
else:
if not os.path.isdir(llvm_dir):
raise SCons.Errors.InternalError, "Specified LLVM directory not found"
if env['debug']:
llvm_subdir = 'Debug'
else:
llvm_subdir = 'Release'
llvm_bin_dir = os.path.join(llvm_dir, llvm_subdir, 'bin')
if not os.path.isdir(llvm_bin_dir):
raise SCons.Errors.InternalError, "LLVM build directory not found"
env.PrependENVPath('PATH', llvm_bin_dir)
if env.Detect('llvm-config'):
pipe = SCons.Action._subproc(env,
['llvm-config', '--version'],
stdin = 'devnull',
stderr = 'devnull',
stdout = subprocess.PIPE)
if pipe.wait() != 0:
return
line = pipe.stdout.read().strip()
if not line:
return
env['LLVM_VERSION'] = line
env.ParseConfig('llvm-config --cppflags')
env.ParseConfig('llvm-config --libs jit interpreter nativecodegen bitwriter')
env.ParseConfig('llvm-config --ldflags')
env['LINK'] = env['CXX']
def exists(env):
return True
# vim:set ts=4 sw=4 et:
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