[MIPS] Add support in common.gypi for building MIPS64

build/common.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 158 matching lines @@
         'use_goma%': 0,
         'gomadir%': '',
 
         # The system root for cross-compiles. Default: none.
         'sysroot%': '',
         'chroot_cmd%': '',
 
         # The system libdir used for this ABI.
         'system_libdir%': 'lib',
 
+        # Default MIPS arch variant. This is set in the conditions block
+        # below for MIPS targets.
+        'mips_arch_variant%': '',
+
         'conditions': [
           # Ash needs Aura.
           ['use_aura==0', {
             'use_ash%': 0,
           }],
 
           # Set default value of toolkit_views based on OS.
           ['OS=="win" or chromeos==1 or use_aura==1', {
             'toolkit_views%': 1,
           }, {
@@ skipping 42 matching lines @@
           # "arm64" and "both" (meaning a fat binary).
           #
           # TODO(sdefresne): change the default from "arm32" to "both" for
           # "target_subarch" once http://crbug.com/339477 is fixed.
           #
           # TODO(sdefresne): set the "target_arch" to "arm" once compilation
           # of skia has been fixed for simulator. http://crbug.com/342377
           ['OS=="ios"', {
             'target_subarch%': 'arm32',
           }],
+
+          # Set arch variants for MIPS platforms.
+          ['target_arch=="mips64el"', {
+            'conditions': [
+              ['OS=="android"', {
+                'mips_arch_variant%': 'r6',
+              }, {
+                'mips_arch_variant%': 'r2',
+              }],
+            ],
+          }],
+
+          ['target_arch=="mipsel"', {
+            'mips_arch_variant%': 'r1',
+          }],
         ],
       },
 
       # Copy conditionally-set variables out one scope.
       'chromeos%': '<(chromeos)',
       'chromecast%': '<(chromecast)',
       'host_arch%': '<(host_arch)',
       'target_arch%': '<(target_arch)',
       'target_subarch%': '<(target_subarch)',
+      'mips_arch_variant%': '<(mips_arch_variant)',
       'toolkit_views%': '<(toolkit_views)',
       'desktop_linux%': '<(desktop_linux)',
       'use_aura%': '<(use_aura)',
       'use_ash%': '<(use_ash)',
       'use_cras%': '<(use_cras)',
       'use_ozone%': '<(use_ozone)',
       'use_ozone_evdev%': '<(use_ozone_evdev)',
       'use_clipboard_aurax11%': '<(use_clipboard_aurax11)',
       'embedded%': '<(embedded)',
       'use_openssl%': '<(use_openssl)',
@@ skipping 772 matching lines @@
       'google_default_client_secret%': '',
       # Native Client is enabled by default.
       'disable_nacl%': '0',
     },
 
     # Copy conditionally-set variables out one scope.
     'branding%': '<(branding)',
     'buildtype%': '<(buildtype)',
     'target_arch%': '<(target_arch)',
     'target_subarch%': '<(target_subarch)',
+    'mips_arch_variant%': '<(mips_arch_variant)',
     'host_arch%': '<(host_arch)',
     'toolkit_views%': '<(toolkit_views)',
     'ui_compositor_image_transport%': '<(ui_compositor_image_transport)',
     'use_aura%': '<(use_aura)',
     'use_ash%': '<(use_ash)',
     'use_cras%': '<(use_cras)',
     'use_openssl%': '<(use_openssl)',
     'use_openssl_certs%': '<(use_openssl_certs)',
     'use_nss%': '<(use_nss)',
     'use_udev%': '<(use_udev)',
@@ skipping 260 matching lines @@
 
     # Enable TCMalloc.
     # Default of 'use_allocator' is set to 'none' if OS=='android' later.
     'use_allocator%': 'tcmalloc',
 
     # Set to 1 to link against libgnome-keyring instead of using dlopen().
     'linux_link_gnome_keyring%': 0,
     # Set to 1 to link against gsettings APIs instead of using dlopen().
     'linux_link_gsettings%': 0,
 
-    # Default arch variant for MIPS.
-    'mips_arch_variant%': 'mips32r1',
-
     # Enable use of OpenMAX DL FFT routines.
     'use_openmax_dl_fft%': '<(use_openmax_dl_fft)',
 
     # Enable new NPDevice API.
     'enable_new_npdevice_api%': 0,
 
     # Enable EGLImage support in OpenMAX
     'enable_eglimage%': 1,
 
     # .gyp files or targets should set chromium_code to 1 if they build
@@ skipping 219 matching lines @@
       ['OS=="win" and "<!pymod_do_main(dir_exists <(directx_sdk_default_path))"=="True"', {
         'directx_sdk_path%': '<(directx_sdk_default_path)',
       }, {
         'directx_sdk_path%': '$(DXSDK_DIR)',
       }],
       ['OS=="win"', {
         'windows_driver_kit_path%': '$(WDK_DIR)',
       }],
       ['os_posix==1 and OS!="mac" and OS!="ios"', {
         'conditions': [
-          ['target_arch=="mipsel"', {
+          ['target_arch=="mipsel" or target_arch=="mips64el"', {
             'werror%': '',
             'disable_nacl%': 1,
             'nacl_untrusted_build%': 0,
             'use_allocator%': 'none',
           }],
           ['OS=="linux" and target_arch=="mipsel"', {
             'sysroot%': '<(sysroot)',
             'CXX%': '<(CXX)',
           }],
           # All Chrome builds have breakpad symbols, but only process the
@@ skipping 124 matching lines @@
               'android_ndk_lib_dir%': 'usr/lib',
               'android_toolchain%': '<(android_ndk_root)/toolchains/aarch64-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
             }],
             ['target_arch == "mipsel"', {
               'android_app_abi%': 'mips',
               'android_gdbserver%': '<(android_ndk_root)/prebuilt/android-mips/gdbserver/gdbserver',
               'android_ndk_sysroot%': '<(android_ndk_root)/platforms/android-14/arch-mips',
               'android_ndk_lib_dir%': 'usr/lib',
               'android_toolchain%': '<(android_ndk_root)/toolchains/mipsel-linux-android-4.8/prebuilt/<(host_os)-<(android_host_arch)/bin',
             }],
+            ['target_arch == "mips64el"', {
+              'android_app_abi%': 'mips64',
+              'android_gdbserver%': '<(android_ndk_root)/prebuilt/android-mips64/gdbserver/gdbserver',
+              'android_ndk_sysroot%': '<(android_ndk_root)/platforms/android-L/arch-mips64',
+              'android_ndk_lib_dir%': 'usr/lib64',
+              'android_toolchain%': '<(android_ndk_root)/toolchains/mips64el-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
+              'gcc_version%': 49,
+            }],
           ],
         },
         # Copy conditionally-set variables out one scope.
         'android_app_abi%': '<(android_app_abi)',
         'android_gdbserver%': '<(android_gdbserver)',
         'android_ndk_root%': '<(android_ndk_root)',
         'android_ndk_sysroot%': '<(android_ndk_sysroot)',
         'android_sdk_root%': '<(android_sdk_root)',
         'android_sdk_version%': '<(android_sdk_version)',
         'android_toolchain%': '<(android_toolchain)',
@@ skipping 226 matching lines @@
         'enable_pepper_cdms%': 0,
       }],
 
       ['OS=="android"', {
         'enable_browser_cdms%': 1,
       }, {
         'enable_browser_cdms%': 0,
       }],
 
       # Native Client glibc toolchain is enabled
-      # by default except on arm and mips.
-      ['target_arch=="arm" or target_arch=="mipsel"', {
+      # by default except on arm, mips and mips64.
+      ['target_arch=="arm" or target_arch=="mipsel" or target_arch=="mips64el"', {
         'disable_glibc%': 1,
       }, {
         'disable_glibc%': 0,
       }],
 
       # Set the relative path from this file to the GYP file of the JPEG
       # library used by Chromium.
       ['use_system_libjpeg==1 or use_libjpeg_turbo==0', {
         # Configuration for using the system libjeg is here.
         'libjpeg_gyp_path': '../third_party/libjpeg/libjpeg.gyp',
@@ skipping 1943 matching lines @@
                     ],
                   }],
                 ],
               }],
             ],
           }],
           ['target_arch=="mipsel"', {
             'target_conditions': [
               ['_toolset=="target"', {
                 'conditions': [
-                  ['android_webview_build==0 and mips_arch_variant=="mips32r2"', {
+                  ['android_webview_build==0 and mips_arch_variant=="r6"', {
+                    'cflags': ['-mips32r6', '-Wa,-mips32r6'],
+                    'conditions': [
+                      ['OS=="android"', {
+                        'ldflags': ['-mips32r6', '-Wl,-melf32ltsmip',],
+                      }],
+                    ],
+                  }],
+                  ['android_webview_build==0 and mips_arch_variant=="r2"', {
                     'cflags': ['-mips32r2', '-Wa,-mips32r2'],
                   }],
-                  ['android_webview_build==0 and mips_arch_variant!="mips32r2"', {
+                  ['android_webview_build==0 and mips_arch_variant=="r1"', {
                     'cflags': ['-mips32', '-Wa,-mips32'],
                   }],
                 ],
-                'cflags': [
-                  '-EL',
-                  '-mhard-float',
-                ],
                 'ldflags': [
-                  '-EL',
                   '-Wl,--no-keep-memory'
                 ],
                 'cflags_cc': [
                   '-Wno-uninitialized',
                 ],
               }],
             ],
           }],
+          ['target_arch=="mips64el"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'conditions': [
+                  ['android_webview_build==0 and mips_arch_variant=="r6"', {
+                    'cflags': ['-mips64r6', '-Wa,-mips64r6'],
+                    'ldflags': [ '-mips64r6' ],
+                  }],
+                  ['android_webview_build==0 and mips_arch_variant=="r2"', {
+                    'cflags': ['-mips64r2', '-Wa,-mips64r2'],
+                    'ldflags': [ '-mips64r2' ],
+                  }],
+                ],
+                'cflags_cc': [
+                  '-Wno-uninitialized',
+                ],
+              }],
+            ],
+          }],
           ['linux_fpic==1', {
             'cflags': [
               '-fPIC',
             ],
             'ldflags': [
               '-fPIC',
             ],
           }],
           ['sysroot!=""', {
             'target_conditions': [
@@ skipping 1759 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }