import SCons.Util
+required_llvm_version = '3.3'
+
+
def generate(env):
+ env['llvm'] = False
+
try:
llvm_dir = os.environ['LLVM']
except KeyError:
# 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'
- env.Exit(1)
+ return
# Try to determine the LLVM version from llvm/Config/config.h
- llvm_config = os.path.join(llvm_dir, 'include/llvm/Config/config.h')
+ llvm_config = os.path.join(llvm_dir, 'include/llvm/Config/llvm-config.h')
if not os.path.exists(llvm_config):
print 'scons: could not find %s' % llvm_config
- env.Exit(1)
- llvm_version_re = re.compile(r'^#define PACKAGE_VERSION "([^"]*)"')
+ return
+ llvm_version_major_re = re.compile(r'^#define LLVM_VERSION_MAJOR ([0-9]+)')
+ llvm_version_minor_re = re.compile(r'^#define LLVM_VERSION_MINOR ([0-9]+)')
llvm_version = None
+ llvm_version_major = None
+ llvm_version_minor = None
for line in open(llvm_config, 'rt'):
- mo = llvm_version_re.match(line)
+ mo = llvm_version_major_re.match(line)
if mo:
- llvm_version = mo.group(1)
- llvm_version = distutils.version.LooseVersion(llvm_version)
- break
+ llvm_version_major = mo.group(1)
+ mo = llvm_version_minor_re.match(line)
+ if mo:
+ llvm_version_minor = mo.group(1)
+ if llvm_version_major is not None and llvm_version_minor is not None:
+ llvm_version = distutils.version.LooseVersion('%s.%s' % (llvm_version_major, llvm_version_minor))
+
if llvm_version is None:
print 'scons: could not determine the LLVM version from %s' % llvm_config
- env.Exit(1)
+ return
+ if llvm_version < distutils.version.LooseVersion(required_llvm_version):
+ print 'scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version)
+ 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('2.7'):
- # 2.7
+ # LIBS should match the output of `llvm-config --libs engine mcjit bitwriter x86asmprinter irreader`
+ if llvm_version >= distutils.version.LooseVersion('4.0'):
+ env.Prepend(LIBS = [
+ 'LLVMX86Disassembler', 'LLVMX86AsmParser',
+ 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
+ 'LLVMDebugInfoCodeView', 'LLVMCodeGen',
+ 'LLVMScalarOpts', 'LLVMInstCombine',
+ 'LLVMTransformUtils',
+ 'LLVMBitWriter', 'LLVMX86Desc',
+ 'LLVMMCDisassembler', 'LLVMX86Info',
+ 'LLVMX86AsmPrinter', 'LLVMX86Utils',
+ 'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
+ 'LLVMAnalysis', 'LLVMProfileData',
+ 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
+ 'LLVMBitReader', 'LLVMMC', 'LLVMCore',
+ 'LLVMSupport',
+ 'LLVMIRReader', 'LLVMAsmParser',
+ 'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
+ ])
+ elif llvm_version >= distutils.version.LooseVersion('3.9'):
+ env.Prepend(LIBS = [
+ 'LLVMX86Disassembler', 'LLVMX86AsmParser',
+ 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
+ 'LLVMDebugInfoCodeView', 'LLVMCodeGen',
+ 'LLVMScalarOpts', 'LLVMInstCombine',
+ 'LLVMInstrumentation', 'LLVMTransformUtils',
+ 'LLVMBitWriter', 'LLVMX86Desc',
+ 'LLVMMCDisassembler', 'LLVMX86Info',
+ 'LLVMX86AsmPrinter', 'LLVMX86Utils',
+ 'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
+ 'LLVMAnalysis', 'LLVMProfileData',
+ 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
+ 'LLVMBitReader', 'LLVMMC', 'LLVMCore',
+ 'LLVMSupport',
+ 'LLVMIRReader', 'LLVMASMParser'
+ ])
+ elif llvm_version >= distutils.version.LooseVersion('3.7'):
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',
+ 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
+ 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMProfileData',
+ 'LLVMInstCombine', 'LLVMInstrumentation', 'LLVMTransformUtils', 'LLVMipa',
+ 'LLVMAnalysis', 'LLVMX86Desc', 'LLVMMCDisassembler',
+ 'LLVMX86Info', 'LLVMX86AsmPrinter', 'LLVMX86Utils',
+ 'LLVMMCJIT', 'LLVMTarget', 'LLVMExecutionEngine',
+ 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
+ 'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
+ ])
+ elif llvm_version >= distutils.version.LooseVersion('3.6'):
+ env.Prepend(LIBS = [
+ 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
+ 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
+ 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMProfileData',
+ 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
+ 'LLVMAnalysis', 'LLVMX86Desc', 'LLVMMCDisassembler',
+ 'LLVMX86Info', 'LLVMX86AsmPrinter', 'LLVMX86Utils',
+ 'LLVMMCJIT', 'LLVMTarget', 'LLVMExecutionEngine',
+ 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
+ 'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
+ ])
+ elif llvm_version >= distutils.version.LooseVersion('3.5'):
+ env.Prepend(LIBS = [
+ 'LLVMMCDisassembler',
+ 'LLVMBitWriter', 'LLVMMCJIT', 'LLVMRuntimeDyld',
+ 'LLVMX86Disassembler', 'LLVMX86AsmParser', 'LLVMX86CodeGen',
+ 'LLVMSelectionDAG', 'LLVMAsmPrinter', 'LLVMX86Desc',
+ 'LLVMObject', 'LLVMMCParser', 'LLVMBitReader', 'LLVMX86Info',
+ 'LLVMX86AsmPrinter', 'LLVMX86Utils', 'LLVMJIT',
+ 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
+ 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
+ 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
+ 'LLVMSupport'
])
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',
+ 'LLVMMCDisassembler',
+ 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
+ 'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
+ 'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
+ 'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
+ 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
+ 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
+ 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
+ 'LLVMSupport', 'LLVMRuntimeDyld', 'LLVMObject'
])
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['debug']:
+ # Match some of the warning options from llvm/cmake/modules/HandleLLVMOptions.cmake
+ env.AppendUnique(CXXFLAGS = [
+ '/wd4355', # 'this' : used in base member initializer list
+ '/wd4624', # 'derived class' : destructor could not be generated because a base class destructor is inaccessible
+ ])
+ 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
- env.Exit(1)
+ llvm_config = os.environ.get('LLVM_CONFIG', 'llvm-config')
+ if not env.Detect(llvm_config):
+ print 'scons: %s script not found' % llvm_config
+ return
- llvm_version = env.backtick('llvm-config --version').rstrip()
+ llvm_version = env.backtick('%s --version' % llvm_config).rstrip()
llvm_version = distutils.version.LooseVersion(llvm_version)
+ if llvm_version < distutils.version.LooseVersion(required_llvm_version):
+ print 'scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version)
+ return
+
try:
- env.ParseConfig('llvm-config --cppflags')
- env.ParseConfig('llvm-config --libs jit interpreter nativecodegen bitwriter')
- env.ParseConfig('llvm-config --ldflags')
+ # Treat --cppflags specially to prevent NDEBUG from disabling
+ # assertion failures in debug builds.
+ cppflags = env.ParseFlags('!%s --cppflags' % llvm_config)
+ try:
+ cppflags['CPPDEFINES'].remove('NDEBUG')
+ except ValueError:
+ pass
+ env.MergeFlags(cppflags)
+
+ # Match llvm --fno-rtti flag
+ cxxflags = env.backtick('%s --cxxflags' % llvm_config).split()
+ if '-fno-rtti' in cxxflags:
+ env.Append(CXXFLAGS = ['-fno-rtti'])
+
+ components = ['engine', 'mcjit', 'bitwriter', 'x86asmprinter', 'mcdisassembler', 'irreader']
+
+ env.ParseConfig('%s --libs ' % llvm_config + ' '.join(components))
+ env.ParseConfig('%s --ldflags' % llvm_config)
+ if llvm_version >= distutils.version.LooseVersion('3.5'):
+ env.ParseConfig('%s --system-libs' % llvm_config)
+ env.Append(CXXFLAGS = ['-std=c++11'])
except OSError:
print 'scons: llvm-config version %s failed' % llvm_version
- env.Exit(1)
- else:
- env['LINK'] = env['CXX']
+ return
assert llvm_version is not None
+ env['llvm'] = True
print 'scons: Found LLVM version %s' % llvm_version
env['LLVM_VERSION'] = llvm_version