MIPS: Add big-endian support for MIPS.

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 260 matching lines @@
       ['v8_target_arch=="arm64"', {
         'defines': [
           'V8_TARGET_ARCH_ARM64',
         ],
       }],
       ['v8_target_arch=="ia32"', {
         'defines': [
           'V8_TARGET_ARCH_IA32',
         ],
       }],  # v8_target_arch=="ia32"
+      ['v8_target_arch=="mips"', {
+        'defines': [
+          'V8_TARGET_ARCH_MIPS',
+        ],
+        'variables': {
+          'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")',
+        },
+        'conditions': [
+          ['mipscompiler=="yes"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': ['-EB'],
+                'ldflags': ['-EB'],
+                'conditions': [
+                  [ 'v8_use_mips_abi_hardfloat=="true"', {
+                    'cflags': ['-mhard-float'],
+                    'ldflags': ['-mhard-float'],
+                  }, {
+                    'cflags': ['-msoft-float'],
+                    'ldflags': ['-msoft-float'],
+                  }],
+                  ['mips_arch_variant=="mips32r2"', {
+                    'cflags': ['-mips32r2', '-Wa,-mips32r2'],
+                  }],
+                  ['mips_arch_variant=="mips32r1"', {
+                    'cflags': ['-mips32', '-Wa,-mips32'],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          [ 'v8_can_use_fpu_instructions=="true"', {
+            'defines': [
+              'CAN_USE_FPU_INSTRUCTIONS',
+            ],
+          }],
+          [ 'v8_use_mips_abi_hardfloat=="true"', {
+            'defines': [
+              '__mips_hard_float=1',
+              'CAN_USE_FPU_INSTRUCTIONS',
+            ],
+          }, {
+            'defines': [
+              '__mips_soft_float=1'
+            ],
+          }],
+          ['mips_arch_variant=="mips32r2"', {
+            'defines': ['_MIPS_ARCH_MIPS32R2',],
+          }],
+        ],
+      }],  # v8_target_arch=="mips"
       ['v8_target_arch=="mipsel"', {
         'defines': [
           'V8_TARGET_ARCH_MIPS',
         ],
         'variables': {
           'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")',
         },
         'conditions': [
           ['mipscompiler=="yes"', {
             'target_conditions': [
@@ skipping 82 matching lines @@
             'cflags': [ '-fno-strict-aliasing' ],
           }],
         ],  # conditions
       }],
       ['OS=="solaris"', {
         'defines': [ '__C99FEATURES__=1' ],  # isinf() etc.
       }],
       ['(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=="mipsel")', {
+         v8_target_arch=="mips" or v8_target_arch=="mipsel")', {
         # Check whether the host compiler and target compiler support the
         # '-m32' option and set it if so.
         'target_conditions': [
           ['_toolset=="host"', {
             'variables': {
               'm32flag': '<!(($(echo ${CXX_host:-$(which g++)}) -m32 -E - > /dev/null 2>&1 < /dev/null) && echo "-m32" || true)',
             },
             'cflags': [ '<(m32flag)' ],
             'ldflags': [ '<(m32flag)' ],
             'xcode_settings': {
@@ skipping 346 matching lines @@
                 'OptimizeReferences': '2',
                 'EnableCOMDATFolding': '2',
               },
             },
           }],  # OS=="win"
         ],  # conditions
       },  # Release
     },  # configurations
   },  # target_defaults
 }