O3 Fetch: Check if PC is pointing to Microcode ROM

[gem5.git] / SConstruct

diff --git a/SConstruct b/SConstruct
index 89761a4f19bc1f2da608172655a78ec02bc07170..62d90b3593e49c05d47a4c66597d96fe191df901 100755 (executable)
--- a/SConstruct
+++ b/SConstruct
@@ -473,7 +473,8 @@ CXX_V = readCommand([main['CXX'],'-V'], exception=False)
 main['GCC'] = CXX_version and CXX_version.find('g++') >= 0
 main['SUNCC'] = CXX_V and CXX_V.find('Sun C++') >= 0
 main['ICC'] = CXX_V and CXX_V.find('Intel') >= 0
-if main['GCC'] + main['SUNCC'] + main['ICC'] > 1:
+main['CLANG'] = CXX_V and CXX_V.find('clang') >= 0
+if main['GCC'] + main['SUNCC'] + main['ICC'] + main['CLANG'] > 1:
     print 'Error: How can we have two at the same time?'
     Exit(1)
 
@@ -501,6 +502,24 @@ elif main['SUNCC']:
     main.Append(CCFLAGS=['-library=stlport4'])
     main.Append(CCFLAGS=['-xar'])
     #main.Append(CCFLAGS=['-instances=semiexplicit'])
+elif main['CLANG']:
+    clang_version_re = re.compile(".* version (\d+\.\d+)")
+    clang_version_match = clang_version_re.match(CXX_version)
+    if (clang_version_match):
+        clang_version = clang_version_match.groups()[0]
+        if compareVersions(clang_version, "2.9") < 0:
+            print 'Error: clang version 2.9 or newer required.'
+            print '       Installed version:', clang_version
+            Exit(1)
+    else:
+        print 'Error: Unable to determine clang version.'
+        Exit(1)
+
+    main.Append(CCFLAGS=['-pipe'])
+    main.Append(CCFLAGS=['-fno-strict-aliasing'])
+    main.Append(CCFLAGS=['-Wall', '-Wno-sign-compare', '-Wundef'])
+    main.Append(CCFLAGS=['-Wno-tautological-compare'])
+    main.Append(CCFLAGS=['-Wno-self-assign'])
 else:
     print 'Error: Don\'t know what compiler options to use for your compiler.'
     print '       Please fix SConstruct and src/SConscript and try again.'
@@ -663,10 +682,14 @@ if not py_getvar('Py_ENABLE_SHARED'):
 
 py_libs = []
 for lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split():
-    assert lib.startswith('-l')
-    lib = lib[2:]   
-    if lib not in py_libs:
-        py_libs.append(lib)
+    if not lib.startswith('-l'):
+        # Python requires some special flags to link (e.g. -framework
+        # common on OS X systems), assume appending preserves order
+        main.Append(LINKFLAGS=[lib])
+    else:
+        lib = lib[2:]
+        if lib not in py_libs:
+            py_libs.append(lib)
 py_libs.append(py_version)
 
 main.Append(CPPPATH=py_includes)
@@ -790,7 +813,6 @@ all_isa_list.sort()
 
 sticky_vars.AddVariables(
     EnumVariable('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list),
-    BoolVariable('FULL_SYSTEM', 'Full-system support', False),
     ListVariable('CPU_MODELS', 'CPU models',
                  sorted(n for n,m in CpuModel.dict.iteritems() if m.default),
                  sorted(CpuModel.list)),
@@ -814,10 +836,9 @@ sticky_vars.AddVariables(
     )
 
 # These variables get exported to #defines in config/*.hh (see src/SConscript).
-export_vars += ['FULL_SYSTEM', 'USE_FENV',
-                'NO_FAST_ALLOC', 'FORCE_FAST_ALLOC', 'FAST_ALLOC_STATS',
-                'SS_COMPATIBLE_FP', 'USE_CHECKER', 'TARGET_ISA', 'CP_ANNOTATE',
-                'USE_POSIX_CLOCK' ]
+export_vars += ['USE_FENV', 'NO_FAST_ALLOC', 'FORCE_FAST_ALLOC',
+                'FAST_ALLOC_STATS', 'SS_COMPATIBLE_FP', 'USE_CHECKER',
+                'TARGET_ISA', 'CP_ANNOTATE', 'USE_POSIX_CLOCK' ]
 
 ###################################################
 #