S390: Makefile + Build Toolchain Updates

build/toolchain.gypi

 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 117 matching lines @@
         'linux_use_gold_flags%': 0,
       }],
     ],
 
     # Link-Time Optimizations
     'use_lto%': 0,
   },
   'conditions': [
     ['host_arch=="ia32" or host_arch=="x64" or \
       host_arch=="ppc" or host_arch=="ppc64" or \
+      host_arch=="s390" or host_arch=="s390x" or \
       clang==1', {
       'variables': {
         'host_cxx_is_biarch%': 1,
        },
      }, {
       'variables': {
         'host_cxx_is_biarch%': 0,
       },
     }],
     ['target_arch=="ia32" or target_arch=="x64" or target_arch=="x87" or \
-      target_arch=="ppc" or target_arch=="ppc64" or \
-      clang==1', {
+      target_arch=="ppc" or target_arch=="ppc64" or target_arch=="s390" or \
+      target_arch=="s390x" or clang==1', {
       'variables': {
         'target_cxx_is_biarch%': 1,
        },
      }, {
       'variables': {
         'target_cxx_is_biarch%': 0,
       },
     }],
   ],
   'target_defaults': {
@@ skipping 130 matching lines @@
               }],
             ],
           }],  # _toolset=="target"
         ],
       }],  # v8_target_arch=="arm"
       ['v8_target_arch=="arm64"', {
         'defines': [
           'V8_TARGET_ARCH_ARM64',
         ],
       }],
+      ['v8_target_arch=="s390" or v8_target_arch=="s390x"', {
+        'defines': [
+          'V8_TARGET_ARCH_S390',
+        ],
+        'conditions': [
+          ['v8_target_arch=="s390x"', {
+            'defines': [
+              'V8_TARGET_ARCH_S390X',
+            ],
+          }],
+          ['v8_host_byteorder=="little"', {
+            'defines': [
+              'V8_TARGET_ARCH_S390_LE_SIM',
+            ],
+          }],
+          ],
+      }],  # s390
       ['v8_target_arch=="ppc" or v8_target_arch=="ppc64"', {
         'defines': [
           'V8_TARGET_ARCH_PPC',
         ],
         'conditions': [
           ['v8_target_arch=="ppc64"', {
             'defines': [
               'V8_TARGET_ARCH_PPC64',
             ],
           }],
@@ skipping 662 matching lines @@
         'cflags': [
           '-msse2',
           '-mfpmath=sse',
           '-mmmx',  # Allows mmintrin.h for MMX intrinsics.
         ],
       }],
       ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
          or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
         (v8_target_arch=="arm" or v8_target_arch=="ia32" or \
          v8_target_arch=="x87" or v8_target_arch=="mips" or \
-         v8_target_arch=="mipsel" or v8_target_arch=="ppc")', {
+         v8_target_arch=="mipsel" or v8_target_arch=="ppc" or \
+         v8_target_arch=="s390")', {
         'target_conditions': [
           ['_toolset=="host"', {
             'conditions': [
               ['host_cxx_is_biarch==1', {
-                'cflags': [ '-m32' ],
-                'ldflags': [ '-m32' ]
+                'conditions': [
+                  ['host_arch=="s390" or host_arch=="s390x"', {
+                    'cflags': [ '-m31' ],
+                    'ldflags': [ '-m31' ]
+                  },{
+                   'cflags': [ '-m32' ],
+                   'ldflags': [ '-m32' ]
+                  }],
+                ],
               }],
             ],
             'xcode_settings': {
               'ARCHS': [ 'i386' ],
             },
           }],
           ['_toolset=="target"', {
             'conditions': [
               ['target_cxx_is_biarch==1 and nacl_target_arch!="nacl_x64"', {
-                'cflags': [ '-m32' ],
-                'ldflags': [ '-m32' ],
+                'conditions': [
+                  ['host_arch=="s390" or host_arch=="s390x"', {
+                    'cflags': [ '-m31' ],
+                    'ldflags': [ '-m31' ]
+                  },{
+                   'cflags': [ '-m32' ],
+                   'ldflags': [ '-m32' ],
+                  }],
+                ],
               }],
             ],
             'xcode_settings': {
               'ARCHS': [ 'i386' ],
             },
           }],
         ],
       }],
       ['(OS=="linux" or OS=="android") and \
         (v8_target_arch=="x64" or v8_target_arch=="arm64" or \
-         v8_target_arch=="ppc64")', {
+         v8_target_arch=="ppc64" or v8_target_arch=="s390x")', {
         'target_conditions': [
           ['_toolset=="host"', {
             'conditions': [
               ['host_cxx_is_biarch==1', {
                 'cflags': [ '-m64' ],
                 'ldflags': [ '-m64' ]
               }],
              ],
            }],
            ['_toolset=="target"', {
@@ skipping 306 matching lines @@
           ['v8_enable_slow_dchecks==1', {
             'defines': [
               'ENABLE_SLOW_DCHECKS',
             ],
           }],
         ],  # conditions
       },  # Release
     },  # configurations
   },  # target_defaults
 }