3955dd077b
We'd like to use one Mesa build environment which builds our CL compiler stack (which needs Clang/LLVM) and which builds our GL driver. The GL driver doesn't really need LLVM support, and since we're statically linking LLVM, removing it from the driver drastically reduces our DLL size on disk. Acked-by: Eric Anholt <eric@anholt.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9259>
351 lines
16 KiB
Python
351 lines
16 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('11.0'):
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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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'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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'LLVMFrontendOpenMP',
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])
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elif 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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if llvm_version >= distutils.version.LooseVersion('12.0'):
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components.append('native')
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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 = [('DRAW_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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