[MIPS] Support for MIPS PNaCl in PPAPI

ppapi/native_client/src/trusted/plugin/plugin.gypi

 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
     'common_sources': [
       'file_downloader.cc',
       'file_utils.cc',
       'json_manifest.cc',
       'module_ppapi.cc',
       'nacl_http_response_headers.cc',
       'nacl_subprocess.cc',
       'plugin.cc',
       'pnacl_coordinator.cc',
       'pnacl_options.cc',
       'pnacl_resources.cc',
       'pnacl_translate_thread.cc',
       'scriptable_plugin.cc',
       'sel_ldr_launcher_chrome.cc',
       'service_runtime.cc',
       'srpc_client.cc',
       'srpc_params.cc',
       'temporary_file.cc',
       'utility.cc',
     ],
     # Append the arch-specific ISA code to common_sources.
     'conditions': [
-      # Note: this test assumes that if this is not an ARM build, then this is
-      # is an x86 build.  This is because |target_arch| for x86 can be one of a
-      # number of values (x64, ia32, etc.).
       ['target_arch=="arm"', {
         'common_sources': [
           'arch_arm/sandbox_isa.cc',
         ],
-      }, {  # else: 'target_arch != "arm"
+      }],
+      ['target_arch=="mipsel"', {

[dmichael (off chromium), 2014/02/05 23:55:22]

So am I correct in understanding that you're only adding support for
little-endian MIPS? That seems appropriate; I think a lot of things would be
broken in a big-endian architecture.

[petarj, 2014/02/06 00:38:48]

Correct.

+        'common_sources': [
+          'arch_mips/sandbox_isa.cc',
+        ],
+      }],
+      ['target_arch=="ia32" or target_arch=="x64"', {
         'common_sources': [
           'arch_x86/sandbox_isa.cc',
         ],
       }],
     ],
   },
   'includes': [
     '../../../../../native_client/build/common.gypi',
   ],
   'target_defaults': {
@@ skipping 57 matching lines @@
         'link_settings': {
           'libraries': [
             '-lgdi32.lib',
             '-luser32.lib',
           ],
         },
       }],
     ],
   },
 }