X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=scons%2Fllvm.py;h=c59b8cb9317f0f384dd7d6686c04bcdd4569d497;hb=62e011d593008e61ddcba3c32b5710505f4974e6;hp=37c503ec986dd959104dae30392979bef7c3b8fc;hpb=5184b02b0793136a15b7edf309d79a1efe1bc73d;p=mesa.git diff --git a/scons/llvm.py b/scons/llvm.py index 37c503ec986..c59b8cb9317 100644 --- a/scons/llvm.py +++ b/scons/llvm.py @@ -29,13 +29,20 @@ Tool-specific initialization for LLVM import os import os.path +import re import sys +import distutils.version import SCons.Errors import SCons.Util +required_llvm_version = '3.3' + + def generate(env): + env['llvm'] = False + try: llvm_dir = os.environ['LLVM'] except KeyError: @@ -60,71 +67,152 @@ def generate(env): 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: + 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/llvm-config.h') + if not os.path.exists(llvm_config): + print 'scons: could not find %s' % llvm_config + 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_major_re.match(line) + if mo: + 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 + 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')]) + # LIBS should match the output of `llvm-config --libs engine mcjit bitwriter x86asmprinter` + if 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' ]) - env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')]) + elif llvm_version >= distutils.version.LooseVersion('3.5'): 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', - 'imagehlp', - 'psapi', + '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: + env.Prepend(LIBS = [ + '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')]) + # 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['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 - elif env.Detect('llvm-config'): - version = env.backtick('llvm-config --version').rstrip() + 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' + return + + llvm_version = env.backtick('llvm-config --version').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') + # 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) + + # Match llvm --fno-rtti flag + cxxflags = env.backtick('llvm-config --cxxflags').split() + if '-fno-rtti' in cxxflags: + env.Append(CXXFLAGS = ['-fno-rtti']) + + components = ['engine', 'mcjit', 'bitwriter', 'x86asmprinter', 'mcdisassembler'] + + env.ParseConfig('llvm-config --libs ' + ' '.join(components)) env.ParseConfig('llvm-config --ldflags') + if llvm_version >= distutils.version.LooseVersion('3.5'): + env.ParseConfig('llvm-config --system-libs') + env.Append(CXXFLAGS = ['-std=c++11']) except OSError: - print 'llvm-config version %s failed' % version - else: - if env['platform'] == 'windows': - env.Append(LIBS = ['imagehlp', 'psapi']) - env['LINK'] = env['CXX'] - env['LLVM_VERSION'] = version + 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