324 lines
14 KiB
Python
324 lines
14 KiB
Python
"""llvm
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Tool-specific initialization for LLVM
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"""
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#
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# Copyright (c) 2009 VMware, Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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import os
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import os.path
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import re
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import platform as host_platform
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import sys
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import distutils.version
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import SCons.Errors
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import SCons.Util
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required_llvm_version = '3.9'
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def generate(env):
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env['llvm'] = False
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try:
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llvm_dir = os.environ['LLVM']
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except KeyError:
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# Do nothing -- use the system headers/libs
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llvm_dir = None
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else:
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if not os.path.isdir(llvm_dir):
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raise SCons.Errors.InternalError("Specified LLVM directory not found")
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if env['debug']:
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llvm_subdir = 'Debug'
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else:
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llvm_subdir = 'Release'
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llvm_bin_dir = os.path.join(llvm_dir, llvm_subdir, 'bin')
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if not os.path.isdir(llvm_bin_dir):
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llvm_bin_dir = os.path.join(llvm_dir, 'bin')
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if not os.path.isdir(llvm_bin_dir):
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raise SCons.Errors.InternalError("LLVM binary directory not found")
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env.PrependENVPath('PATH', llvm_bin_dir)
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if env['platform'] == 'windows':
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# XXX: There is no llvm-config on Windows, so assume a standard layout
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if llvm_dir is None:
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print('scons: LLVM environment variable must be specified when building for windows')
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return
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# Try to determine the LLVM version from llvm/Config/config.h
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llvm_config = os.path.join(llvm_dir, 'include/llvm/Config/llvm-config.h')
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if not os.path.exists(llvm_config):
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print('scons: could not find %s' % llvm_config)
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return
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llvm_version_major_re = re.compile(r'^#define LLVM_VERSION_MAJOR ([0-9]+)')
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llvm_version_minor_re = re.compile(r'^#define LLVM_VERSION_MINOR ([0-9]+)')
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llvm_version = None
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llvm_version_major = None
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llvm_version_minor = None
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for line in open(llvm_config, 'rt'):
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mo = llvm_version_major_re.match(line)
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if mo:
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llvm_version_major = mo.group(1)
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mo = llvm_version_minor_re.match(line)
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if mo:
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llvm_version_minor = mo.group(1)
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if llvm_version_major is not None and llvm_version_minor is not None:
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llvm_version = distutils.version.LooseVersion('%s.%s' % (llvm_version_major, llvm_version_minor))
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if llvm_version is None:
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print('scons: could not determine the LLVM version from %s' % llvm_config)
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return
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if llvm_version < distutils.version.LooseVersion(required_llvm_version):
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print('scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version))
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return
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env.Prepend(CPPPATH = [os.path.join(llvm_dir, 'include')])
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env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')])
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# LLVM 5.0 and newer requires MinGW w/ pthreads due to use of std::thread and friends.
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if llvm_version >= distutils.version.LooseVersion('5.0') and env['crosscompile']:
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assert env['gcc']
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env.AppendUnique(CXXFLAGS = ['-posix'])
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# LIBS should match the output of `llvm-config --libs engine mcjit bitwriter x86asmprinter irreader` for LLVM<=7.0
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# and `llvm-config --libs engine coroutines` for LLVM>=8.0
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# LLVMAggressiveInstCombine library part of engine component since LLVM 6 is only needed by Mesa3D for LLVM>=8.
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# While not directly needed by Mesa3D, this library is needed by LLVMipo which is part of coroutines component.
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if llvm_version >= distutils.version.LooseVersion('10.0'):
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMAsmParser',
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'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
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'LLVMBinaryFormat',
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'LLVMRemarks', 'LLVMBitstreamReader', 'LLVMDebugInfoDWARF',
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'LLVMAggressiveInstCombine','LLVMLinker', 'LLVMVectorize',
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'LLVMInstrumentation', 'LLVMipo', 'LLVMCoroutines',
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'LLVMCFGuard', 'LLVMTextAPI',
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])
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elif llvm_version >= distutils.version.LooseVersion('9.0'):
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMAsmParser',
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'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
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'LLVMBinaryFormat',
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'LLVMRemarks', 'LLVMBitstreamReader', 'LLVMDebugInfoDWARF',
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# Add these libraries to enable ompute shaders support.
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'LLVMAggressiveInstCombine','LLVMLinker', 'LLVMVectorize',
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'LLVMInstrumentation', 'LLVMipo', 'LLVMCoroutines',
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])
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elif llvm_version >= distutils.version.LooseVersion('8.0'):
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86AsmPrinter', 'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMAsmParser',
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'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
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'LLVMBinaryFormat',
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# Add these libraries to enable ompute shaders support.
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'LLVMAggressiveInstCombine', 'LLVMLinker', 'LLVMVectorize',
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'LLVMInstrumentation', 'LLVMipo', 'LLVMCoroutines',
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])
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elif llvm_version >= distutils.version.LooseVersion('5.0'):
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86AsmPrinter', 'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMAsmParser',
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'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
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'LLVMBinaryFormat',
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])
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elif llvm_version >= distutils.version.LooseVersion('4.0'):
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86AsmPrinter', 'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMAsmParser',
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'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
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])
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else:
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env.Prepend(LIBS = [
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'LLVMX86Disassembler', 'LLVMX86AsmParser',
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'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
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'LLVMDebugInfoCodeView', 'LLVMCodeGen',
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'LLVMScalarOpts', 'LLVMInstCombine',
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'LLVMInstrumentation', 'LLVMTransformUtils',
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'LLVMBitWriter', 'LLVMX86Desc',
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'LLVMMCDisassembler', 'LLVMX86Info',
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'LLVMX86AsmPrinter', 'LLVMX86Utils',
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'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
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'LLVMAnalysis', 'LLVMProfileData',
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'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
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'LLVMBitReader', 'LLVMMC', 'LLVMCore',
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'LLVMSupport',
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'LLVMIRReader', 'LLVMASMParser'
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])
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env.Append(LIBS = [
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'imagehlp',
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'psapi',
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'shell32',
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'advapi32',
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'ole32',
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'uuid',
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])
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# Mingw-w64 zlib is required when building with LLVM support in MSYS2 environment
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if host_platform.system().lower().startswith('mingw'):
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env.Append(LIBS = [
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'z',
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])
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if env['msvc']:
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# Some of the LLVM C headers use the inline keyword without
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# defining it.
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env.Append(CPPDEFINES = [('inline', '__inline')])
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# Match some of the warning options from llvm/cmake/modules/HandleLLVMOptions.cmake
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env.AppendUnique(CXXFLAGS = [
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'/wd4355', # 'this' : used in base member initializer list
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'/wd4624', # 'derived class' : destructor could not be generated because a base class destructor is inaccessible
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])
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if env['build'] in ('debug', 'checked'):
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# LLVM libraries are static, build with /MT, and they
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# automatically link agains LIBCMT. When we're doing a
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# debug build we'll be linking against LIBCMTD, so disable
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# that.
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env.Append(LINKFLAGS = ['/nodefaultlib:LIBCMT'])
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else:
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llvm_config = os.environ.get('LLVM_CONFIG', 'llvm-config')
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if not env.Detect(llvm_config):
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print('scons: %s script not found' % llvm_config)
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return
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llvm_version = env.backtick('%s --version' % llvm_config).rstrip()
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llvm_version = distutils.version.LooseVersion(llvm_version)
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if llvm_version < distutils.version.LooseVersion(required_llvm_version):
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print('scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version))
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return
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try:
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# Treat --cppflags specially to prevent NDEBUG from disabling
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# assertion failures in debug builds.
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cppflags = env.ParseFlags('!%s --cppflags' % llvm_config)
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try:
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cppflags['CPPDEFINES'].remove('NDEBUG')
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except ValueError:
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pass
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env.MergeFlags(cppflags)
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# Match llvm --fno-rtti flag
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cxxflags = env.backtick('%s --cxxflags' % llvm_config).split()
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if '-fno-rtti' in cxxflags:
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env.Append(CXXFLAGS = ['-fno-rtti'])
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if llvm_version < distutils.version.LooseVersion('9.0'):
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components = ['engine', 'mcjit', 'bitwriter', 'x86asmprinter', 'mcdisassembler', 'irreader']
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else:
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components = ['engine', 'mcjit', 'bitwriter', 'mcdisassembler', 'irreader']
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if llvm_version >= distutils.version.LooseVersion('8.0'):
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components.append('coroutines')
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env.ParseConfig('%s --libs ' % llvm_config + ' '.join(components))
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env.ParseConfig('%s --ldflags' % llvm_config)
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env.ParseConfig('%s --system-libs' % llvm_config)
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env.Append(CXXFLAGS = ['-std=c++14'])
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except OSError:
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print('scons: llvm-config version %s failed' % llvm_version)
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return
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assert llvm_version is not None
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env['llvm'] = True
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print('scons: Found LLVM version %s' % llvm_version)
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env['LLVM_VERSION'] = llvm_version
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# Define LLVM_AVAILABLE macro to guard code blocks, and MESA_LLVM_VERSION_STRING
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env.Prepend(CPPDEFINES = [('LLVM_AVAILABLE', 1)])
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env.Prepend(CPPDEFINES = [('MESA_LLVM_VERSION_STRING=\\"%s\\"' % llvm_version)])
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def exists(env):
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return True
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# vim:set ts=4 sw=4 et:
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