blob: e24c4675287833e7a2654dccbe050ebe1dc89f10 [file] [log] [blame]
// 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.
#include <stdint.h>
#include "build/build_config.h"
#include "base/time/time.h"
#include "chrome/app/chrome_main_delegate.h"
#include "chrome/common/features.h"
#include "content/public/app/content_main.h"
#if BUILDFLAG(ENABLE_PACKAGE_MASH_SERVICES)
#include "base/command_line.h"
#include "chrome/app/mash/mash_runner.h"
#include "chrome/common/channel_info.h"
#include "components/version_info/version_info.h"
#endif
#if defined(OS_WIN)
#include "base/debug/dump_without_crashing.h"
#include "base/win/win_util.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/install_static/install_details.h"
#define DLLEXPORT __declspec(dllexport)
// We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
extern "C" {
DLLEXPORT int __cdecl ChromeMain(HINSTANCE instance,
sandbox::SandboxInterfaceInfo* sandbox_info,
int64_t exe_entry_point_ticks);
}
#elif defined(OS_POSIX)
extern "C" {
__attribute__((visibility("default")))
int ChromeMain(int argc, const char** argv);
}
#endif
#if defined(OS_WIN)
DLLEXPORT int __cdecl ChromeMain(HINSTANCE instance,
sandbox::SandboxInterfaceInfo* sandbox_info,
int64_t exe_entry_point_ticks) {
#elif defined(OS_POSIX)
int ChromeMain(int argc, const char** argv) {
int64_t exe_entry_point_ticks = 0;
#endif
#if defined(OS_WIN) && defined(ARCH_CPU_X86_64)
// VS2013 only checks the existence of FMA3 instructions, not the enabled-ness
// of them at the OS level (this is fixed in VS2015). We force off usage of
// FMA3 instructions in the CRT to avoid using that path and hitting illegal
// instructions when running on CPUs that support FMA3, but OSs that don't.
// See http://crbug.com/436603.
_set_FMA3_enable(0);
#endif // WIN && ARCH_CPU_X86_64
#if defined(OS_WIN)
install_static::InstallDetails::InitializeFromPrimaryModule(
chrome::kChromeElfDllName);
#endif
ChromeMainDelegate chrome_main_delegate(
base::TimeTicks::FromInternalValue(exe_entry_point_ticks));
content::ContentMainParams params(&chrome_main_delegate);
#if defined(OS_WIN)
// The process should crash when going through abnormal termination.
base::win::SetShouldCrashOnProcessDetach(true);
base::win::SetAbortBehaviorForCrashReporting();
params.instance = instance;
params.sandbox_info = sandbox_info;
// SetDumpWithoutCrashingFunction must be passed the DumpProcess function
// from chrome_elf and not from the DLL in order for DumpWithoutCrashing to
// function correctly.
typedef void (__cdecl *DumpProcessFunction)();
DumpProcessFunction DumpProcess = reinterpret_cast<DumpProcessFunction>(
::GetProcAddress(::GetModuleHandle(chrome::kChromeElfDllName),
"DumpProcessWithoutCrash"));
CHECK(DumpProcess);
base::debug::SetDumpWithoutCrashingFunction(DumpProcess);
// Verify that chrome_elf and this module (chrome.dll and chrome_child.dll)
// have the same version.
if (install_static::InstallDetails::Get().VersionMismatch())
base::debug::DumpWithoutCrashing();
#else
params.argc = argc;
params.argv = argv;
#endif
#if BUILDFLAG(ENABLE_PACKAGE_MASH_SERVICES)
#if !defined(OS_WIN)
base::CommandLine::Init(params.argc, params.argv);
#endif
version_info::Channel channel = chrome::GetChannel();
if (channel == version_info::Channel::CANARY ||
channel == version_info::Channel::UNKNOWN) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch("mash"))
return MashMain();
}
#endif // BUILDFLAG(ENABLE_PACKAGE_MASH_SERVICES)
int rv = content::ContentMain(params);
#if defined(OS_WIN)
base::win::SetShouldCrashOnProcessDetach(false);
#endif
return rv;
}