import os
import os.path
+import re
import sys
+import distutils.version
import SCons.Errors
import SCons.Util
if env['platform'] == 'windows':
# XXX: There is no llvm-config on Windows, so assume a standard layout
- if llvm_dir is not None:
- env.Prepend(CPPPATH = [os.path.join(llvm_dir, 'include')])
- env.AppendUnique(CPPDEFINES = [
- '__STDC_LIMIT_MACROS',
- '__STDC_CONSTANT_MACROS',
- 'HAVE_STDINT_H',
+ if llvm_dir is None:
+ 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
+
+ if llvm_version >= distutils.version.LooseVersion('2.7'):
+ print 'scons: Ignoring unsupported LLVM version %s' % llvm_version
+ print 'scons: See http://www.llvm.org/bugs/show_bug.cgi?id=6429'
+ 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
+ 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',
])
- env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')])
+ 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',
+ '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',
- 'imagehlp',
- 'psapi',
])
- if env['msvc']:
- # Some of the LLVM C headers use the inline keyword without
- # defining it.
- env.Append(CPPDEFINES = [('inline', '__inline')])
- if env['debug']:
- # 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'])
- env['LLVM_VERSION'] = '2.6'
- return
+ env.Append(LIBS = [
+ 'imagehlp',
+ 'psapi',
+ ])
+ if env['msvc']:
+ # Some of the LLVM C headers use the inline keyword without
+ # defining it.
+ env.Append(CPPDEFINES = [('inline', '__inline')])
+ if env['debug']:
+ # 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'])
elif env.Detect('llvm-config'):
- version = env.backtick('llvm-config --version').rstrip()
+ llvm_version = env.backtick('llvm-config --version').rstrip()
+ llvm_version = distutils.version.LooseVersion(llvm_version)
+
+ if llvm_version >= distutils.version.LooseVersion('2.7'):
+ print 'scons: Ignoring unsupported LLVM version %s' % llvm_version
+ print 'scons: See http://www.llvm.org/bugs/show_bug.cgi?id=6429'
+ return
try:
env.ParseConfig('llvm-config --cppflags')
env.ParseConfig('llvm-config --libs jit interpreter nativecodegen bitwriter')
env.ParseConfig('llvm-config --ldflags')
except OSError:
- print 'llvm-config version %s failed' % version
+ print 'llvm-config version %s failed' % llvm_version
else:
- if env['platform'] == 'windows':
- env.Append(LIBS = ['imagehlp', 'psapi'])
env['LINK'] = env['CXX']
- env['LLVM_VERSION'] = version
+ else:
+ return
+
+ assert llvm_version is not None
+
+ 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
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