svn merge ^/branches/released .

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: