ruby: add RUBY sticky option that must be set to add ruby to the build

Default is false

SConstruct

@@ -345,8 +345,9 @@ global_sticky_vars.AddVariables(
     ('BATCH', 'Use batch pool for build and tests', False),
     ('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
     ('EXTRAS', 'Add Extra directories to the compilation', '',
-     PathListAllExist, PathListMakeAbsolute)
-    )    
+     PathListAllExist, PathListMakeAbsolute),
+    BoolVariable('RUBY', 'Build with Ruby', False),
+    )
 
 # base help text
 help_text = '''

src/mem/SConscript

@@ -34,7 +34,9 @@ SimObject('Bridge.py')
 SimObject('Bus.py')
 SimObject('MemObject.py')
 SimObject('PhysicalMemory.py')
-SimObject('RubyMemory.py')
+
+if env['RUBY']:
+    SimObject('RubyMemory.py')
 
 Source('bridge.cc')
 Source('bus.cc')
@@ -45,7 +47,9 @@ Source('physical.cc')
 Source('port.cc')
 Source('tport.cc')
 Source('mport.cc')
-Source('rubymem.cc')
+
+if env['RUBY']:
+    Source('rubymem.cc')
 
 if env['FULL_SYSTEM']:
     Source('vport.cc')

src/mem/gems_common/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 #benv['LEXCOM'] = "$LEX $LEXFLAGS -o$TARGET $SOURCES"
 benv = env.Clone()
 benv.Append(YACCFLAGS=["-pat"])

src/mem/gems_common/ioutil/SConscript

@@ -30,5 +30,8 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('confio.cc')
 Source('initvar.cc')

src/mem/protocol/SConscript

@@ -40,6 +40,9 @@ import SCons
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 slicc_dir = Dir('../slicc')
 protocol_dir = Dir('.')
 html_dir = Dir('html')

src/mem/ruby/SConscript

@@ -37,6 +37,9 @@ import SCons
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('init.cc')
 
 def do_embed_text(target, source, env):

src/mem/ruby/SConsopts

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not main['RUBY']:
+    Return()
+
 sticky_vars.AddVariables(
     BoolVariable('NO_VECTOR_BOUNDS_CHECKS', "Don't do bounds checks", True),
     BoolVariable('RUBY_DEBUG', "Add debugging stuff to Ruby", False))

src/mem/ruby/buffers/SConscript

@@ -30,5 +30,8 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('MessageBuffer.cc')
 Source('MessageBufferNode.cc')

src/mem/ruby/common/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('Address.cc')
 Source('DataBlock.cc')
 Source('Debug.cc')

src/mem/ruby/config/SConscript

@@ -30,4 +30,7 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('RubyConfig.cc')

src/mem/ruby/eventqueue/SConscript

@@ -30,5 +30,8 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('RubyEventQueue.cc')
 Source('RubyEventQueueNode.cc')

src/mem/ruby/network/garnet-fixed-pipeline/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('GarnetNetwork_d.cc')
 Source('InputUnit_d.cc')
 Source('NetworkInterface_d.cc')

src/mem/ruby/network/garnet-flexible-pipeline/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('GarnetNetwork.cc')
 Source('InVcState.cc')
 Source('NetworkInterface.cc')

src/mem/ruby/network/orion/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('NetworkPower.cc', Werror=False)
 Source('power_arbiter.cc')
 Source('power_array.cc', Werror=False)

src/mem/ruby/network/simple/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('PerfectSwitch.cc')
 Source('SimpleNetwork.cc')
 Source('Switch.cc')

src/mem/ruby/profiler/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('AccessTraceForAddress.cc')
 Source('AddressProfiler.cc')
 Source('CacheProfiler.cc')

src/mem/ruby/recorder/SConscript

@@ -30,4 +30,7 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('TraceRecord.cc', Werror=False)

src/mem/ruby/slicc_interface/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('AbstractCacheEntry.cc')
 Source('AbstractChip.cc')
 Source('RubySlicc_Profiler_interface.cc')

src/mem/ruby/system/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('DirectoryMemory.cc')
 Source('MemoryControl.cc')
 Source('MemoryNode.cc')

src/mem/ruby/tester/SConscript

@@ -30,6 +30,9 @@
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 Source('Check.cc')
 Source('CheckTable.cc')
 Source('DetermGETXGenerator.cc')

src/mem/slicc/SConscript

@@ -40,6 +40,9 @@ import SCons
 
 Import('*')
 
+if not env['RUBY']:
+    Return()
+
 common_dir = Dir('../gems_common')
 
 #

tests/SConscript

@@ -265,8 +265,9 @@ else:
     configs += ['simple-atomic', 'simple-timing', 'o3-timing', 'memtest',
                 'simple-atomic-mp', 'simple-timing-mp', 'o3-timing-mp']
 
-# Hack for Ruby
-configs += [c + '-ruby' for c in configs]
+if env['RUBY']:
+    # Hack for Ruby
+    configs += [c + '-ruby' for c in configs]
 
 cwd = os.getcwd()
 os.chdir(str(Dir('.').srcdir))