NaCl: Fix ARM Gyp build of IRT to include IRT-private __aeabi_read_tp

ppapi/native_client/native_client.gyp

 # 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.
 
 {
   'includes': [
     '../../build/common_untrusted.gypi',
   ],
   'conditions': [
     ['disable_nacl==0 and disable_nacl_untrusted==0', {
@@ skipping 90 matching lines @@
             ],
             # See http://code.google.com/p/nativeclient/issues/detail?id=2691.
             # The PNaCl linker (gold) does not implement the "-Ttext-segment"
             # option.  However, with the linker for x86, the "-Ttext" option
             # does not affect the executable's base address.
             # TODO(olonho): simplify flags handling and avoid duplication
             # with NaCl logic.
             'conditions': [
               ['target_arch!="arm"',
                {
+                 'sources': [
+                 ],
                  'link_flags': [
                    '-Wl,--section-start,.rodata=<(NACL_IRT_DATA_START)',
                    '-Wl,-Ttext-segment=<(NACL_IRT_TEXT_START)',
                  ]
                }, { # target_arch == "arm"
+                 # TODO(mcgrathr): This knowledge really belongs in
+                 # native_client/src/untrusted/irt/irt.gyp instead of here.
+                 # But that builds libirt_browser.a as bitcode, so a native
+                 # object does not fit happily there.
+                 'sources': [
+                   '../../native_client/src/untrusted/irt/aeabi_read_tp.S',
+                 ],
                  'link_flags': [
                    '-Wl,--section-start,.rodata=<(NACL_IRT_DATA_START)',
                    '-Wl,-Ttext=<(NACL_IRT_TEXT_START)',
                    '--pnacl-allow-native',
                    '-arch', 'arm',
                    '-Wt,-mtls-use-call',
                  ],
                },
              ],
             ],
-            'sources': [
-            ],
             'extra_args': [
               '--strip-debug',
             ],
             # TODO(bradchen): get rid of extra_deps64 and extra_deps32
             # once native_client/build/untrusted.gypi no longer needs them.
             'extra_deps64': [
               '<(SHARED_INTERMEDIATE_DIR)/tc_newlib/lib64/libppruntime.a',
               '<(SHARED_INTERMEDIATE_DIR)/tc_newlib/lib64/libbase_untrusted.a',
               '<(SHARED_INTERMEDIATE_DIR)/tc_newlib/lib64/libirt_browser.a',
               '<(SHARED_INTERMEDIATE_DIR)/tc_newlib/lib64/libshared_memory_support_untrusted.a',
@@ skipping 294 matching lines @@
             '../../native_client/src/shared/srpc/srpc.gyp:srpc_lib',
             '../../native_client/src/shared/platform/platform.gyp:platform_lib',
             '../../native_client/src/untrusted/nacl/nacl.gyp:imc_syscalls_lib',
             '../../native_client/src/shared/gio/gio.gyp:gio_lib',
           ],
         },
       ],
     }],
   ],
 }