Hi Nathan,
I started noticing the same problem this week, too. The class looks
like it's supposed to help developers by attaching a C++ debugger
whenever a critical exception is raised, so they can view the stack
trace and inspect variables. What I think happens is that Chromium
thinks that Xcode's debugger is listening when it really isn't, and it
crashes.
When you run Chromium.app via Run -- Debug, you can get over the
breakpoint by pressing the continue button, or typing 'c' in gdb. But
if you run the application via Run -- Run or by opening it in Finder,
the breakpoint turns fatal and terminates the app.
I've just commented out the two asm() lines in my tree because I find
the breakpoints more annoying than helpful. I think it would be better
if DebugUtil's features were enabled with a build or runtime flag,
rather than having to resort to commenting it out.
- Robert Sesek
On Jun 6, 10:48 pm, Nathan Summer nathan.charles.sum...@gmail.com
wrote:
Hi,
I compile chrome and run under XCode.
But it breaks here, can you please tell me why? And what does BreakDebugger
do?
// static
void DebugUtil::BreakDebugger() {
#if defined(ARCH_CPU_ARM_FAMILY)
asm(bkpt 0);
#else
asm(int3);
#endif
}
Here is the stack trace:
#0 0x0058c43f in DebugUtil::BreakDebugger at debug_util_posix.cc:116
#1 0x005ad984 in logging::LogMessage::~LogMessage at logging.cc:545
#2 0x0040e751 in SafeBrowsingService::UpdateStarted at
safe_browsing_service.cc:466
#3 0x003e7c4a in SafeBrowsingProtocolManager::IssueUpdateRequest at
protocol_manager.cc:486
#4 0x003e7cc9 in SafeBrowsingProtocolManager::GetNextUpdate at
protocol_manager.cc:157
#5 0x003ed24a in DispatchToMethodSafeBrowsingProtocolManager, void
(SafeBrowsingProtocolManager::*)() at tuple.h:412
#6 0x003ed28d in base::BaseTimerSafeBrowsingProtocolManager,
false::TimerTask::Run at timer.h:160
#7 0x005b07c3 in MessageLoop::RunTask at message_loop.cc:309
#8 0x005b0b87 in MessageLoop::DeferOrRunPendingTask at message_loop.cc:317
#9 0x005b0d0a in MessageLoop::DoDelayedWork at message_loop.cc:450
#10 0x005bb154 in base::MessagePumpLibevent::Run at
message_pump_libevent.cc:228
#11 0x005b18bb in MessageLoop::RunInternal at message_loop.cc:198
#12 0x005b18d7 in MessageLoop::RunHandler at message_loop.cc:181
#13 0x005b1962 in MessageLoop::Run at message_loop.cc:155
#14 0x005f30a9 in base::Thread::ThreadMain at thread.cc:156
#15 0x005c72c4 in ThreadFunc at platform_thread_posix.cc:26
#16 0x92129155 in _pthread_start
#17 0x92129012 in thread_start
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