VirtualBox

source: vbox/trunk/src/VBox/Additions/3D/mesa/mesa-17.3.9/scons/llvm.py@ 75443

Last change on this file since 75443 was 75443, checked in by vboxsync, 6 years ago

Exported Mesa related code to OSE.
  • Property svn:eol-style set to LF
File size: 12.7 KB
Line 
1"""llvm
2
3Tool-specific initialization for LLVM
4
5"""
6
7#
8# Copyright (c) 2009 VMware, Inc.
9#
10# Permission is hereby granted, free of charge, to any person obtaining
11# a copy of this software and associated documentation files (the
12# "Software"), to deal in the Software without restriction, including
13# without limitation the rights to use, copy, modify, merge, publish,
14# distribute, sublicense, and/or sell copies of the Software, and to
15# permit persons to whom the Software is furnished to do so, subject to
16# the following conditions:
17#
18# The above copyright notice and this permission notice shall be included
19# in all copies or substantial portions of the Software.
20#
21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
22# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
23# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28#
29
30import os
31import os.path
32import re
33import sys
34import distutils.version
35
36import SCons.Errors
37import SCons.Util
38
39
40required_llvm_version = '3.3'
41
42
43def generate(env):
44 env['llvm'] = False
45
46 try:
47 llvm_dir = os.environ['LLVM']
48 except KeyError:
49 # Do nothing -- use the system headers/libs
50 llvm_dir = None
51 else:
52 if not os.path.isdir(llvm_dir):
53 raise SCons.Errors.InternalError("Specified LLVM directory not found")
54
55 if env['debug']:
56 llvm_subdir = 'Debug'
57 else:
58 llvm_subdir = 'Release'
59
60 llvm_bin_dir = os.path.join(llvm_dir, llvm_subdir, 'bin')
61 if not os.path.isdir(llvm_bin_dir):
62 llvm_bin_dir = os.path.join(llvm_dir, 'bin')
63 if not os.path.isdir(llvm_bin_dir):
64 raise SCons.Errors.InternalError("LLVM binary directory not found")
65
66 env.PrependENVPath('PATH', llvm_bin_dir)
67
68 if env['platform'] == 'windows':
69 # XXX: There is no llvm-config on Windows, so assume a standard layout
70 if llvm_dir is None:
71 print('scons: LLVM environment variable must be specified when building for windows')
72 return
73
74 # Try to determine the LLVM version from llvm/Config/config.h
75 llvm_config = os.path.join(llvm_dir, 'include/llvm/Config/llvm-config.h')
76 if not os.path.exists(llvm_config):
77 print('scons: could not find %s' % llvm_config)
78 return
79 llvm_version_major_re = re.compile(r'^#define LLVM_VERSION_MAJOR ([0-9]+)')
80 llvm_version_minor_re = re.compile(r'^#define LLVM_VERSION_MINOR ([0-9]+)')
81 llvm_version = None
82 llvm_version_major = None
83 llvm_version_minor = None
84 for line in open(llvm_config, 'rt'):
85 mo = llvm_version_major_re.match(line)
86 if mo:
87 llvm_version_major = mo.group(1)
88 mo = llvm_version_minor_re.match(line)
89 if mo:
90 llvm_version_minor = mo.group(1)
91 if llvm_version_major is not None and llvm_version_minor is not None:
92 llvm_version = distutils.version.LooseVersion('%s.%s' % (llvm_version_major, llvm_version_minor))
93
94 if llvm_version is None:
95 print('scons: could not determine the LLVM version from %s' % llvm_config)
96 return
97 if llvm_version < distutils.version.LooseVersion(required_llvm_version):
98 print('scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version))
99 return
100
101 env.Prepend(CPPPATH = [os.path.join(llvm_dir, 'include')])
102 env.AppendUnique(CPPDEFINES = [
103 'HAVE_STDINT_H',
104 ])
105 env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')])
106 # LIBS should match the output of `llvm-config --libs engine mcjit bitwriter x86asmprinter irreader`
107 if llvm_version >= distutils.version.LooseVersion('5.0'):
108 env.Prepend(LIBS = [
109 'LLVMX86Disassembler', 'LLVMX86AsmParser',
110 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
111 'LLVMDebugInfoCodeView', 'LLVMCodeGen',
112 'LLVMScalarOpts', 'LLVMInstCombine',
113 'LLVMTransformUtils',
114 'LLVMBitWriter', 'LLVMX86Desc',
115 'LLVMMCDisassembler', 'LLVMX86Info',
116 'LLVMX86AsmPrinter', 'LLVMX86Utils',
117 'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
118 'LLVMAnalysis', 'LLVMProfileData',
119 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
120 'LLVMBitReader', 'LLVMMC', 'LLVMCore',
121 'LLVMSupport',
122 'LLVMIRReader', 'LLVMAsmParser',
123 'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
124 'LLVMBinaryFormat',
125 ])
126 elif llvm_version >= distutils.version.LooseVersion('4.0'):
127 env.Prepend(LIBS = [
128 'LLVMX86Disassembler', 'LLVMX86AsmParser',
129 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
130 'LLVMDebugInfoCodeView', 'LLVMCodeGen',
131 'LLVMScalarOpts', 'LLVMInstCombine',
132 'LLVMTransformUtils',
133 'LLVMBitWriter', 'LLVMX86Desc',
134 'LLVMMCDisassembler', 'LLVMX86Info',
135 'LLVMX86AsmPrinter', 'LLVMX86Utils',
136 'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
137 'LLVMAnalysis', 'LLVMProfileData',
138 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
139 'LLVMBitReader', 'LLVMMC', 'LLVMCore',
140 'LLVMSupport',
141 'LLVMIRReader', 'LLVMAsmParser',
142 'LLVMDemangle', 'LLVMGlobalISel', 'LLVMDebugInfoMSF',
143 ])
144 elif llvm_version >= distutils.version.LooseVersion('3.9'):
145 env.Prepend(LIBS = [
146 'LLVMX86Disassembler', 'LLVMX86AsmParser',
147 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
148 'LLVMDebugInfoCodeView', 'LLVMCodeGen',
149 'LLVMScalarOpts', 'LLVMInstCombine',
150 'LLVMInstrumentation', 'LLVMTransformUtils',
151 'LLVMBitWriter', 'LLVMX86Desc',
152 'LLVMMCDisassembler', 'LLVMX86Info',
153 'LLVMX86AsmPrinter', 'LLVMX86Utils',
154 'LLVMMCJIT', 'LLVMExecutionEngine', 'LLVMTarget',
155 'LLVMAnalysis', 'LLVMProfileData',
156 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
157 'LLVMBitReader', 'LLVMMC', 'LLVMCore',
158 'LLVMSupport',
159 'LLVMIRReader', 'LLVMASMParser'
160 ])
161 elif llvm_version >= distutils.version.LooseVersion('3.7'):
162 env.Prepend(LIBS = [
163 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
164 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
165 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMProfileData',
166 'LLVMInstCombine', 'LLVMInstrumentation', 'LLVMTransformUtils', 'LLVMipa',
167 'LLVMAnalysis', 'LLVMX86Desc', 'LLVMMCDisassembler',
168 'LLVMX86Info', 'LLVMX86AsmPrinter', 'LLVMX86Utils',
169 'LLVMMCJIT', 'LLVMTarget', 'LLVMExecutionEngine',
170 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
171 'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
172 ])
173 elif llvm_version >= distutils.version.LooseVersion('3.6'):
174 env.Prepend(LIBS = [
175 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
176 'LLVMX86CodeGen', 'LLVMSelectionDAG', 'LLVMAsmPrinter',
177 'LLVMCodeGen', 'LLVMScalarOpts', 'LLVMProfileData',
178 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
179 'LLVMAnalysis', 'LLVMX86Desc', 'LLVMMCDisassembler',
180 'LLVMX86Info', 'LLVMX86AsmPrinter', 'LLVMX86Utils',
181 'LLVMMCJIT', 'LLVMTarget', 'LLVMExecutionEngine',
182 'LLVMRuntimeDyld', 'LLVMObject', 'LLVMMCParser',
183 'LLVMBitReader', 'LLVMMC', 'LLVMCore', 'LLVMSupport'
184 ])
185 elif llvm_version >= distutils.version.LooseVersion('3.5'):
186 env.Prepend(LIBS = [
187 'LLVMMCDisassembler',
188 'LLVMBitWriter', 'LLVMMCJIT', 'LLVMRuntimeDyld',
189 'LLVMX86Disassembler', 'LLVMX86AsmParser', 'LLVMX86CodeGen',
190 'LLVMSelectionDAG', 'LLVMAsmPrinter', 'LLVMX86Desc',
191 'LLVMObject', 'LLVMMCParser', 'LLVMBitReader', 'LLVMX86Info',
192 'LLVMX86AsmPrinter', 'LLVMX86Utils', 'LLVMJIT',
193 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
194 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
195 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
196 'LLVMSupport'
197 ])
198 else:
199 env.Prepend(LIBS = [
200 'LLVMMCDisassembler',
201 'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
202 'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
203 'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
204 'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
205 'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
206 'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
207 'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
208 'LLVMSupport', 'LLVMRuntimeDyld', 'LLVMObject'
209 ])
210 env.Append(LIBS = [
211 'imagehlp',
212 'psapi',
213 'shell32',
214 'advapi32'
215 ])
216 if env['msvc']:
217 # Some of the LLVM C headers use the inline keyword without
218 # defining it.
219 env.Append(CPPDEFINES = [('inline', '__inline')])
220 # Match some of the warning options from llvm/cmake/modules/HandleLLVMOptions.cmake
221 env.AppendUnique(CXXFLAGS = [
222 '/wd4355', # 'this' : used in base member initializer list
223 '/wd4624', # 'derived class' : destructor could not be generated because a base class destructor is inaccessible
224 ])
225 if env['build'] in ('debug', 'checked'):
226 # LLVM libraries are static, build with /MT, and they
227 # automatically link agains LIBCMT. When we're doing a
228 # debug build we'll be linking against LIBCMTD, so disable
229 # that.
230 env.Append(LINKFLAGS = ['/nodefaultlib:LIBCMT'])
231 else:
232 llvm_config = os.environ.get('LLVM_CONFIG', 'llvm-config')
233 if not env.Detect(llvm_config):
234 print('scons: %s script not found' % llvm_config)
235 return
236
237 llvm_version = env.backtick('%s --version' % llvm_config).rstrip()
238 llvm_version = distutils.version.LooseVersion(llvm_version)
239
240 if llvm_version < distutils.version.LooseVersion(required_llvm_version):
241 print('scons: LLVM version %s found, but %s is required' % (llvm_version, required_llvm_version))
242 return
243
244 try:
245 # Treat --cppflags specially to prevent NDEBUG from disabling
246 # assertion failures in debug builds.
247 cppflags = env.ParseFlags('!%s --cppflags' % llvm_config)
248 try:
249 cppflags['CPPDEFINES'].remove('NDEBUG')
250 except ValueError:
251 pass
252 env.MergeFlags(cppflags)
253
254 # Match llvm --fno-rtti flag
255 cxxflags = env.backtick('%s --cxxflags' % llvm_config).split()
256 if '-fno-rtti' in cxxflags:
257 env.Append(CXXFLAGS = ['-fno-rtti'])
258
259 components = ['engine', 'mcjit', 'bitwriter', 'x86asmprinter', 'mcdisassembler', 'irreader']
260
261 env.ParseConfig('%s --libs ' % llvm_config + ' '.join(components))
262 env.ParseConfig('%s --ldflags' % llvm_config)
263 if llvm_version >= distutils.version.LooseVersion('3.5'):
264 env.ParseConfig('%s --system-libs' % llvm_config)
265 env.Append(CXXFLAGS = ['-std=c++11'])
266 except OSError:
267 print('scons: llvm-config version %s failed' % llvm_version)
268 return
269
270 assert llvm_version is not None
271 env['llvm'] = True
272
273 print('scons: Found LLVM version %s' % llvm_version)
274 env['LLVM_VERSION'] = llvm_version
275
276 # Define HAVE_LLVM macro with the major/minor version number (e.g., 0x0206 for 2.6)
277 llvm_version_major = int(llvm_version.version[0])
278 llvm_version_minor = int(llvm_version.version[1])
279 llvm_version_hex = '0x%02x%02x' % (llvm_version_major, llvm_version_minor)
280 env.Prepend(CPPDEFINES = [('HAVE_LLVM', llvm_version_hex)])
281
282def exists(env):
283 return True
284
285# vim:set ts=4 sw=4 et:
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