1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "build/build_config.h" 6 #include "chrome/browser/first_run/upgrade_util.h" 7 8 // The entry point for all invocations of Chromium, browser and renderer. On 9 // windows, this does nothing but load chrome.dll and invoke its entry point in 10 // order to make it easy to update the app from GoogleUpdate. We don't need 11 // that extra layer with on linux. 12 13 #if defined(ADDRESS_SANITIZER) && defined(GOOGLE_CHROME_BUILD) 14 // Default AddressSanitizer options for the official build. These do not affect 15 // tests or non-official Chromium builds. 16 // - disable the strict memcmp() checking (http://crbug.com/178677 and 17 // http://crbug.com/178404). 18 // - set the malloc_context_size (i.e. the size of stack traces collected by 19 // ASan for each malloc/free) to 5. These stack traces tend to accumulate 20 // very fast in applications using JIT (v8 in Chrome's case), see 21 // https://code.google.com/p/address-sanitizer/issues/detail?id=177 22 // - disable the in-process symbolization, which isn't 100% compatible with 23 // the existing sandboxes and doesn't make much sense for stripped official 24 // binaries. 25 const char *kAsanDefaultOptions = 26 "malloc_context_size=5 strict_memcmp=0 symbolize=false"; 27 28 // Override the default ASan options for the Google Chrome executable. 29 // __asan_default_options should not be instrumented, because it is called 30 // before ASan is initialized. 31 extern "C" 32 __attribute__((no_address_safety_analysis)) 33 const char *__asan_default_options() { 34 return kAsanDefaultOptions; 35 } 36 #endif 37 38 extern "C" { 39 int ChromeMain(int argc, const char** argv); 40 } 41 42 int main(int argc, const char** argv) { 43 int return_code = ChromeMain(argc, argv); 44 45 #if defined(OS_LINUX) 46 // Launch a new instance if we're shutting down because we detected an 47 // upgrade in the persistent mode. 48 upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded(); 49 #endif 50 51 return return_code; 52 } 53
