scons/llvm.py

   1 """llvm
   2
   3 Tool-specific initialization for LLVM
   4
   5 """
   6
   7 #
   8 # Copyright (c) 2009 VMware, Inc.
   9 #
  10 # Permission is hereby granted, free of charge, to any person obtaining
  11 # a copy of this software and associated documentation files (the
  12 # "Software"), to deal in the Software without restriction, including
  13 # without limitation the rights to use, copy, modify, merge, publish,
  14 # distribute, sublicense, and/or sell copies of the Software, and to
  15 # permit persons to whom the Software is furnished to do so, subject to
  16 # the following conditions:
  17 #
  18 # The above copyright notice and this permission notice shall be included
  19 # in all copies or substantial portions of the Software.
  20 #
  21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  22 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  23 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 #
  29
  30 import os
  31 import os.path
  32 import sys
  33
  34 import SCons.Errors
  35 import SCons.Util
  36
  37
  38 def generate(env):
  39     try:
  40         llvm_dir = os.environ['LLVM']
  41     except KeyError:
  42         # Do nothing -- use the system headers/libs
  43         llvm_dir = None
  44     else:
  45         if not os.path.isdir(llvm_dir):
  46             raise SCons.Errors.InternalError, "Specified LLVM directory not found"
  47
  48         if env['debug']:
  49             llvm_subdir = 'Debug'
  50         else:
  51             llvm_subdir = 'Release'
  52
  53         llvm_bin_dir = os.path.join(llvm_dir, llvm_subdir, 'bin')
  54         if not os.path.isdir(llvm_bin_dir):
  55             llvm_bin_dir = os.path.join(llvm_dir, 'bin')
  56             if not os.path.isdir(llvm_bin_dir):
  57                 raise SCons.Errors.InternalError, "LLVM binary directory not found"
  58
  59         env.PrependENVPath('PATH', llvm_bin_dir)
  60
  61     if env['platform'] == 'windows':
  62         # XXX: There is no llvm-config on Windows, so assume a standard layout
  63         if llvm_dir is not None:
  64             env.Prepend(CPPPATH = [os.path.join(llvm_dir, 'include')])
  65             env.AppendUnique(CPPDEFINES = [
  66                 '__STDC_LIMIT_MACROS',
  67                 '__STDC_CONSTANT_MACROS',
  68                 'HAVE_STDINT_H',
  69             ])
  70             env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')])
  71             env.Prepend(LIBS = [
  72                 'LLVMX86AsmParser',
  73                 'LLVMX86AsmPrinter',
  74                 'LLVMX86CodeGen',
  75                 'LLVMX86Info',
  76                 'LLVMLinker',
  77                 'LLVMipo',
  78                 'LLVMInterpreter',
  79                 'LLVMInstrumentation',
  80                 'LLVMJIT',
  81                 'LLVMExecutionEngine',
  82                 'LLVMDebugger',
  83                 'LLVMBitWriter',
  84                 'LLVMAsmParser',
  85                 'LLVMArchive',
  86                 'LLVMBitReader',
  87                 'LLVMSelectionDAG',
  88                 'LLVMAsmPrinter',
  89                 'LLVMCodeGen',
  90                 'LLVMScalarOpts',
  91                 'LLVMTransformUtils',
  92                 'LLVMipa',
  93                 'LLVMAnalysis',
  94                 'LLVMTarget',
  95                 'LLVMMC',
  96                 'LLVMCore',
  97                 'LLVMSupport',
  98                 'LLVMSystem',
  99                 'imagehlp',
 100                 'psapi',
 101             ])
 102             if env['msvc']:
 103                 # Some of the LLVM C headers use the inline keyword without
 104                 # defining it.
 105                 env.Append(CPPDEFINES = [('inline', '__inline')])
 106                 if env['debug']:
 107                     # LLVM libraries are static, build with /MT, and they
 108                     # automatically link agains LIBCMT. When we're doing a
 109                     # debug build we'll be linking against LIBCMTD, so disable
 110                     # that.
 111                     env.Append(LINKFLAGS = ['/nodefaultlib:LIBCMT'])
 112             env['LLVM_VERSION'] = '2.6'
 113         return
 114     elif env.Detect('llvm-config'):
 115         version = env.backtick('llvm-config --version').rstrip()
 116
 117         try:
 118             env.ParseConfig('llvm-config --cppflags')
 119             env.ParseConfig('llvm-config --libs jit interpreter nativecodegen bitwriter')
 120             env.ParseConfig('llvm-config --ldflags')
 121         except OSError:
 122             print 'llvm-config version %s failed' % version
 123         else:
 124             if env['platform'] == 'windows':
 125                 env.Append(LIBS = ['imagehlp', 'psapi'])
 126             env['LINK'] = env['CXX']
 127             env['LLVM_VERSION'] = version
 128
 129 def exists(env):
 130     return True
 131
 132 # vim:set ts=4 sw=4 et: