| """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 re |
| import sys |
| import distutils.version |
| |
| import SCons.Errors |
| import SCons.Util |
| |
| |
| def generate(env): |
| env['llvm'] = False |
| |
| try: |
| llvm_dir = os.environ['LLVM'] |
| except KeyError: |
| # Do nothing -- use the system headers/libs |
| llvm_dir = None |
| 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): |
| llvm_bin_dir = os.path.join(llvm_dir, 'bin') |
| if not os.path.isdir(llvm_bin_dir): |
| raise SCons.Errors.InternalError, "LLVM binary directory not found" |
| |
| env.PrependENVPath('PATH', llvm_bin_dir) |
| |
| if env['platform'] == 'windows': |
| # XXX: There is no llvm-config on Windows, so assume a standard layout |
| if llvm_dir is None: |
| print 'scons: LLVM environment variable must be specified when building for windows' |
| return |
| |
| # Try to determine the LLVM version from llvm/Config/config.h |
| llvm_config = os.path.join(llvm_dir, 'include/llvm/Config/config.h') |
| if not os.path.exists(llvm_config): |
| print 'scons: could not find %s' % llvm_config |
| return |
| llvm_version_re = re.compile(r'^#define PACKAGE_VERSION "([^"]*)"') |
| llvm_version = None |
| for line in open(llvm_config, 'rt'): |
| mo = llvm_version_re.match(line) |
| if mo: |
| llvm_version = mo.group(1) |
| llvm_version = distutils.version.LooseVersion(llvm_version) |
| break |
| if llvm_version is None: |
| print 'scons: could not determine the LLVM version from %s' % llvm_config |
| return |
| |
| env.Prepend(CPPPATH = [os.path.join(llvm_dir, 'include')]) |
| env.AppendUnique(CPPDEFINES = [ |
| '__STDC_LIMIT_MACROS', |
| '__STDC_CONSTANT_MACROS', |
| 'HAVE_STDINT_H', |
| ]) |
| env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')]) |
| if llvm_version >= distutils.version.LooseVersion('3.0'): |
| # 3.0 |
| env.Prepend(LIBS = [ |
| 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser', |
| 'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG', |
| 'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter', |
| 'LLVMX86Utils', 'LLVMX86Info', 'LLVMJIT', |
| 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts', |
| 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa', |
| 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore', |
| 'LLVMSupport' |
| ]) |
| elif llvm_version >= distutils.version.LooseVersion('2.9'): |
| # 2.9 |
| env.Prepend(LIBS = [ |
| 'LLVMObject', 'LLVMMCJIT', 'LLVMMCDisassembler', |
| 'LLVMLinker', 'LLVMipo', 'LLVMInterpreter', |
| 'LLVMInstrumentation', 'LLVMJIT', 'LLVMExecutionEngine', |
| 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser', |
| 'LLVMMCParser', 'LLVMX86AsmPrinter', 'LLVMX86CodeGen', |
| 'LLVMSelectionDAG', 'LLVMX86Utils', 'LLVMX86Info', 'LLVMAsmPrinter', |
| 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMInstCombine', |
| 'LLVMTransformUtils', 'LLVMipa', 'LLVMAsmParser', |
| 'LLVMArchive', 'LLVMBitReader', 'LLVMAnalysis', 'LLVMTarget', |
| 'LLVMCore', 'LLVMMC', 'LLVMSupport', |
| ]) |
| elif llvm_version >= distutils.version.LooseVersion('2.7'): |
| # 2.7 |
| env.Prepend(LIBS = [ |
| 'LLVMLinker', 'LLVMipo', 'LLVMInterpreter', |
| 'LLVMInstrumentation', 'LLVMJIT', 'LLVMExecutionEngine', |
| 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser', |
| 'LLVMMCParser', 'LLVMX86AsmPrinter', 'LLVMX86CodeGen', |
| 'LLVMSelectionDAG', 'LLVMX86Info', 'LLVMAsmPrinter', |
| 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMInstCombine', |
| 'LLVMTransformUtils', 'LLVMipa', 'LLVMAsmParser', |
| 'LLVMArchive', 'LLVMBitReader', 'LLVMAnalysis', 'LLVMTarget', |
| 'LLVMMC', 'LLVMCore', 'LLVMSupport', 'LLVMSystem', |
| ]) |
| else: |
| # 2.6 |
| env.Prepend(LIBS = [ |
| 'LLVMX86AsmParser', 'LLVMX86AsmPrinter', 'LLVMX86CodeGen', |
| 'LLVMX86Info', 'LLVMLinker', 'LLVMipo', 'LLVMInterpreter', |
| 'LLVMInstrumentation', 'LLVMJIT', 'LLVMExecutionEngine', |
| 'LLVMDebugger', 'LLVMBitWriter', 'LLVMAsmParser', |
| 'LLVMArchive', 'LLVMBitReader', 'LLVMSelectionDAG', |
| 'LLVMAsmPrinter', 'LLVMCodeGen', 'LLVMScalarOpts', |
| 'LLVMTransformUtils', 'LLVMipa', 'LLVMAnalysis', |
| 'LLVMTarget', 'LLVMMC', 'LLVMCore', 'LLVMSupport', |
| 'LLVMSystem', |
| ]) |
| env.Append(LIBS = [ |
| 'imagehlp', |
| 'psapi', |
| 'shell32', |
| 'advapi32' |
| ]) |
| if env['msvc']: |
| # Some of the LLVM C headers use the inline keyword without |
| # defining it. |
| env.Append(CPPDEFINES = [('inline', '__inline')]) |
| if env['build'] in ('debug', 'checked'): |
| # LLVM libraries are static, build with /MT, and they |
| # automatically link agains LIBCMT. When we're doing a |
| # debug build we'll be linking against LIBCMTD, so disable |
| # that. |
| env.Append(LINKFLAGS = ['/nodefaultlib:LIBCMT']) |
| else: |
| if not env.Detect('llvm-config'): |
| print 'scons: llvm-config script not found' % llvm_version |
| return |
| |
| llvm_version = env.backtick('llvm-config --version').rstrip() |
| llvm_version = distutils.version.LooseVersion(llvm_version) |
| |
| try: |
| # Treat --cppflags specially to prevent NDEBUG from disabling |
| # assertion failures in debug builds. |
| cppflags = env.ParseFlags('!llvm-config --cppflags') |
| try: |
| cppflags['CPPDEFINES'].remove('NDEBUG') |
| except ValueError: |
| pass |
| env.MergeFlags(cppflags) |
| |
| env.ParseConfig('llvm-config --libs engine bitwriter') |
| env.ParseConfig('llvm-config --ldflags') |
| except OSError: |
| print 'scons: llvm-config version %s failed' % llvm_version |
| return |
| |
| assert llvm_version is not None |
| env['llvm'] = True |
| |
| print 'scons: Found LLVM version %s' % llvm_version |
| env['LLVM_VERSION'] = llvm_version |
| |
| # Define HAVE_LLVM macro with the major/minor version number (e.g., 0x0206 for 2.6) |
| llvm_version_major = int(llvm_version.version[0]) |
| llvm_version_minor = int(llvm_version.version[1]) |
| llvm_version_hex = '0x%02x%02x' % (llvm_version_major, llvm_version_minor) |
| env.Prepend(CPPDEFINES = [('HAVE_LLVM', llvm_version_hex)]) |
| |
| def exists(env): |
| return True |
| |
| # vim:set ts=4 sw=4 et: |