diff options
Diffstat (limited to 'mesalib/scons/llvm.py')
| -rw-r--r-- | mesalib/scons/llvm.py | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/mesalib/scons/llvm.py b/mesalib/scons/llvm.py new file mode 100644 index 000000000..64fb10181 --- /dev/null +++ b/mesalib/scons/llvm.py @@ -0,0 +1,168 @@ +"""llvm
+
+Tool-specific initialization for LLVM
+
+"""
+
+#
+# Copyright (c) 2009 VMware, Inc.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+import os
+import os.path
+import re
+import sys
+import distutils.version
+
+import SCons.Errors
+import SCons.Util
+
+
+def generate(env):
+ env['llvm'] = False
+
+ try:
+ llvm_dir = os.environ['LLVM']
+ except KeyError:
+ # Do nothing -- use the system headers/libs
+ llvm_dir = None
+ else:
+ if not os.path.isdir(llvm_dir):
+ raise SCons.Errors.InternalError, "Specified LLVM directory not found"
+
+ if env['debug']:
+ llvm_subdir = 'Debug'
+ else:
+ llvm_subdir = 'Release'
+
+ llvm_bin_dir = os.path.join(llvm_dir, llvm_subdir, 'bin')
+ if not os.path.isdir(llvm_bin_dir):
+ llvm_bin_dir = os.path.join(llvm_dir, 'bin')
+ if not os.path.isdir(llvm_bin_dir):
+ raise SCons.Errors.InternalError, "LLVM binary directory not found"
+
+ env.PrependENVPath('PATH', llvm_bin_dir)
+
+ if env['platform'] == 'windows':
+ # XXX: There is no llvm-config on Windows, so assume a standard layout
+ 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/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
+
+ 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',
+ ])
+ 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',
+ 'LLVMSystem',
+ ])
+ 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['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' % llvm_version
+ return
+
+ llvm_version = env.backtick('llvm-config --version').rstrip()
+ llvm_version = distutils.version.LooseVersion(llvm_version)
+
+ try:
+ env.ParseConfig('llvm-config --cppflags')
+ env.ParseConfig('llvm-config --libs jit interpreter nativecodegen bitwriter')
+ env.ParseConfig('llvm-config --ldflags')
+ except OSError:
+ print 'scons: llvm-config version %s failed' % llvm_version
+ return
+ else:
+ env['LINK'] = env['CXX']
+
+ 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
+
+# vim:set ts=4 sw=4 et:
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