Add mips64 port.

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 38 matching lines @@
     'v8_can_use_vfp32dregs%': 'false',
     'arm_test_noprobe%': 'off',
 
     # Similar to vfp but on MIPS.
     'v8_can_use_fpu_instructions%': 'true',
 
     # Similar to the ARM hard float ABI but on MIPS.
     'v8_use_mips_abi_hardfloat%': 'true',
 
     # Default arch variant for MIPS.
-    'mips_arch_variant%': 'mips32r2',
+    'mips_arch_variant%': 'r2',
 
     'v8_enable_backtrace%': 0,
 
     # Enable profiling support. Only required on Windows.
     'v8_enable_prof%': 0,
 
     # Some versions of GCC 4.5 seem to need -fno-strict-aliasing.
     'v8_no_strict_aliasing%': 0,
 
     # Chrome needs this definition unconditionally. For standalone V8 builds,
@@ skipping 170 matching lines @@
                 'cflags': ['-EB'],
                 'ldflags': ['-EB'],
                 'conditions': [
                   [ 'v8_use_mips_abi_hardfloat=="true"', {
                     'cflags': ['-mhard-float'],
                     'ldflags': ['-mhard-float'],
                   }, {
                     'cflags': ['-msoft-float'],
                     'ldflags': ['-msoft-float'],
                   }],
-                  ['mips_arch_variant=="mips32r2"', {
+                  ['mips_arch_variant=="r2"', {
                     'cflags': ['-mips32r2', '-Wa,-mips32r2'],
                   }],
-                  ['mips_arch_variant=="mips32r1"', {
+                  ['mips_arch_variant=="r1"', {
                     'cflags': ['-mips32', '-Wa,-mips32'],
                   }],
                 ],
               }],
             ],
           }],
           [ 'v8_can_use_fpu_instructions=="true"', {
             'defines': [
               'CAN_USE_FPU_INSTRUCTIONS',
             ],
           }],
           [ 'v8_use_mips_abi_hardfloat=="true"', {
             'defines': [
               '__mips_hard_float=1',
               'CAN_USE_FPU_INSTRUCTIONS',
             ],
           }, {
             'defines': [
               '__mips_soft_float=1'
             ],
           }],
-          ['mips_arch_variant=="mips32r2"', {
+          ['mips_arch_variant=="r2"', {
             'defines': ['_MIPS_ARCH_MIPS32R2',],
           }],
         ],
       }],  # v8_target_arch=="mips"
       ['v8_target_arch=="mipsel"', {
         'defines': [
           'V8_TARGET_ARCH_MIPS',
         ],
         'variables': {
           'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")',
         },
         'conditions': [
           ['mipscompiler=="yes"', {
             'target_conditions': [
               ['_toolset=="target"', {
                 'cflags': ['-EL'],
                 'ldflags': ['-EL'],
                 'conditions': [
                   [ 'v8_use_mips_abi_hardfloat=="true"', {
                     'cflags': ['-mhard-float'],
                     'ldflags': ['-mhard-float'],
                   }, {
                     'cflags': ['-msoft-float'],
                     'ldflags': ['-msoft-float'],
                   }],
-                  ['mips_arch_variant=="mips32r2"', {
+                  ['mips_arch_variant=="r2"', {
                     'cflags': ['-mips32r2', '-Wa,-mips32r2'],
                   }],
-                  ['mips_arch_variant=="mips32r1"', {
+                  ['mips_arch_variant=="r1"', {
                     'cflags': ['-mips32', '-Wa,-mips32'],
                  }],
                   ['mips_arch_variant=="loongson"', {
                     'cflags': ['-mips3', '-Wa,-mips3'],
                   }],
                 ],
               }],
             ],
           }],
           [ 'v8_can_use_fpu_instructions=="true"', {
             'defines': [
               'CAN_USE_FPU_INSTRUCTIONS',
             ],
           }],
           [ 'v8_use_mips_abi_hardfloat=="true"', {
             'defines': [
               '__mips_hard_float=1',
               'CAN_USE_FPU_INSTRUCTIONS',
             ],
           }, {
             'defines': [
               '__mips_soft_float=1'
             ],
           }],
-          ['mips_arch_variant=="mips32r2"', {
+          ['mips_arch_variant=="r2"', {
             'defines': ['_MIPS_ARCH_MIPS32R2',],
           }],
           ['mips_arch_variant=="loongson"', {
             'defines': ['_MIPS_ARCH_LOONGSON',],
           }],
         ],
       }],  # v8_target_arch=="mipsel"
+      ['v8_target_arch=="mips64el"', {
+        'defines': [
+          'V8_TARGET_ARCH_MIPS64',
+        ],
+        'variables': {
+          'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")',
+        },
+        'conditions': [
+          ['mipscompiler=="yes"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': ['-EL'],
+                'ldflags': ['-EL'],
+                'conditions': [
+                  [ 'v8_use_mips_abi_hardfloat=="true"', {
+                    'cflags': ['-mhard-float'],
+                    'ldflags': ['-mhard-float'],
+                  }, {
+                    'cflags': ['-msoft-float'],
+                    'ldflags': ['-msoft-float'],
+                  }],
+                  ['mips_arch_variant=="r2"', {
+                    'cflags': ['-mips64r2', '-mabi=64', '-Wa,-mips64r2'],
+                    'ldflags': [
+                      '-mips64r2', '-mabi=64',
+                      '-Wl,--dynamic-linker=$(LDSO_PATH)',
+                      '-Wl,--rpath=$(LD_R_PATH)',
+                    ],
+                  }],
+                  ['mips_arch_variant=="loongson"', {
+                    'cflags': ['-mips3', '-Wa,-mips3'],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          [ 'v8_can_use_fpu_instructions=="true"', {
+            'defines': [
+              'CAN_USE_FPU_INSTRUCTIONS',
+            ],
+          }],
+          [ 'v8_use_mips_abi_hardfloat=="true"', {
+            'defines': [
+              '__mips_hard_float=1',
+              'CAN_USE_FPU_INSTRUCTIONS',
+            ],
+          }, {
+            'defines': [
+              '__mips_soft_float=1'
+            ],
+          }],
+          ['mips_arch_variant=="r2"', {
+            'defines': ['_MIPS_ARCH_MIPS64R2',],
+          }],
+          ['mips_arch_variant=="loongson"', {
+            'defines': ['_MIPS_ARCH_LOONGSON',],
+          }],
+        ],
+      }],  # v8_target_arch=="mips64el"
       ['v8_target_arch=="x64"', {
         'defines': [
           'V8_TARGET_ARCH_X64',
         ],
         'xcode_settings': {
           'ARCHS': [ 'x86_64' ],
         },
         'msvs_settings': {
           'VCLinkerTool': {
             'StackReserveSize': '2097152',
@@ skipping 407 matching lines @@
                 'OptimizeReferences': '2',
                 'EnableCOMDATFolding': '2',
               },
             },
           }],  # OS=="win"
         ],  # conditions
       },  # Release
     },  # configurations
   },  # target_defaults
 }