[Linux] Turn off -mstackrealign for breakpad in ia32.

breakpad/breakpad.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': [
     'breakpad_sender.gypi',
     'breakpad_handler.gypi',
   ],
   'conditions': [
@@ skipping 577 matching lines @@
             ['OS!="android"', {
               'link_settings': {
                 'libraries': [
                   # In case of Android, '-ldl' is added in common.gypi, since it
                   # is needed for stlport_static. For LD, the order of libraries
                   # is important, and thus we skip to add it here.
                   '-ldl',
                 ],
               },
             }],
+            ['clang==1 and target_arch=="ia32"', {
+              'cflags!': [
+                # Clang's -mstackrealign  doesn't work well with

[Lei Zhang, 2015/11/24 15:03:20]

nits (ditto in all the other comments):

- Just 1 space after -mstackrealign.
- Can you reference https://crbug.com/556393 ?

+                # linux_syscall_support.h hand written asm syscalls.
+                '-mstackrealign',
+              ],
+            }],
           ],
 
           'include_dirs': [
             'src',
             'src/client',
             'src/third_party/linux/include',
             '..',
             '.',
           ],
         },
@@ skipping 89 matching lines @@
               'sources': [
                 'src/common/android/breakpad_getcontext_unittest.cc',
               ],
               'variables': {
                 'test_type': 'gtest',
                 'test_suite_name': '<(_target_name)',
                 'isolate_file': 'breakpad_unittests.isolate',
               },
               'includes': [ '../build/android/test_runner.gypi' ],
             }],
+            ['clang==1 and target_arch=="ia32"', {
+              'cflags!': [
+                # Clang's -mstackrealign  doesn't work well with
+                # linux_syscall_support.h hand written asm syscalls.
+                '-mstackrealign',
+              ],
+            }],
           ],
         },
         {
           # GN version: //breakpad:linux_dumper_unittest_helper
           'target_name': 'linux_dumper_unittest_helper',
           'type': 'executable',
           'dependencies': [
             'breakpad_processor_support',
           ],
           'sources': [
@@ skipping 283 matching lines @@
                   'breakpad_unittests_apk.isolate',
                 ],
               },
             ]
           }
         ],
       ],
     }],
   ],
 }