gallivm: Support MCJIT on Windows.

[mesa.git] / scons / llvm.py

diff --git a/scons/llvm.py b/scons/llvm.py
index d88d6e3a5ad68ed58bc220c544258a25289b8774..288a0806f2a7f25cdbb860f51b5fa7da1aff5db6 100644 (file)
--- a/scons/llvm.py
+++ b/scons/llvm.py
@@ -37,7 +37,12 @@ import SCons.Errors
 import SCons.Util
 
 
+required_llvm_version = '3.1'
+
+
 def generate(env):
+    env['llvm'] = False
+
     try:
         llvm_dir = os.environ['LLVM']
     except KeyError:
@@ -64,13 +69,13 @@ def generate(env):
         # 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'
-            env.Exit(1)
+            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
-            env.Exit(1)
+            return
         llvm_version_re = re.compile(r'^#define PACKAGE_VERSION "([^"]*)"')
         llvm_version = None
         for line in open(llvm_config, 'rt'):
@@ -81,7 +86,10 @@ def generate(env):
                 break
         if llvm_version is None:
             print 'scons: could not determine the LLVM version from %s' % llvm_config
-            env.Exit(1)
+            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 = [
@@ -90,41 +98,41 @@ def generate(env):
             'HAVE_STDINT_H',
         ])
         env.Prepend(LIBPATH = [os.path.join(llvm_dir, 'lib')])
-        if llvm_version >= distutils.version.LooseVersion('2.7'):
-            # 2.7
+        if llvm_version >= distutils.version.LooseVersion('3.2'):
+            # 3.2
             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',
+                'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
+                'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
+                'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
+                'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
+                'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
+                'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
+                'LLVMSupport', 'LLVMRuntimeDyld', 'LLVMObject'
             ])
         else:
-            # 2.6
+            # 3.1
             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',
+                'LLVMBitWriter', 'LLVMX86Disassembler', 'LLVMX86AsmParser',
+                'LLVMX86CodeGen', 'LLVMX86Desc', 'LLVMSelectionDAG',
+                'LLVMAsmPrinter', 'LLVMMCParser', 'LLVMX86AsmPrinter',
+                'LLVMX86Utils', 'LLVMX86Info', 'LLVMMCJIT', 'LLVMJIT',
+                'LLVMExecutionEngine', 'LLVMCodeGen', 'LLVMScalarOpts',
+                'LLVMInstCombine', 'LLVMTransformUtils', 'LLVMipa',
+                'LLVMAnalysis', 'LLVMTarget', 'LLVMMC', 'LLVMCore',
+                'LLVMSupport'
             ])
         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')])
-            if env['debug']:
+            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
@@ -132,23 +140,44 @@ def generate(env):
                 env.Append(LINKFLAGS = ['/nodefaultlib:LIBCMT'])
     else:
         if not env.Detect('llvm-config'):
-            print 'scons: llvm-config script not found' % llvm_version
-            env.Exit(1)
+            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']
+
+            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 'scons: llvm-config version %s failed' % llvm_version
-            env.Exit(1)
-        else:
-            env['LINK'] = env['CXX']
+            return
 
     assert llvm_version is not None
+    env['llvm'] = True
 
     print 'scons: Found LLVM version %s' % llvm_version
     env['LLVM_VERSION'] = llvm_version