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Modify MachThread::NotifyException() to allow the arch specific protocol to process 

the passed in (MachException::Data &)exc first before possible reassignment of the
member m_stop_exception with exc.  This allows lldb to stop at the watchpoint of
a simple test program.

llvm-svn: 139767
This commit is contained in:
Johnny Chen 2011-09-15 01:12:15 +00:00
parent 4299fdb1a3
commit 88c1b77f74
1 changed files with 5 additions and 26 deletions
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31
lldb/tools/debugserver/source/MacOSX/MachThread.cpp
View File

@ -547,6 +547,10 @@ MachThread::ThreadDidStop()
bool
MachThread::NotifyException(MachException::Data& exc)
{
// Allow the arch specific protocol to process (MachException::Data &)exc
// first before possible reassignment of m_stop_exception with exc.
bool handled = m_arch_ap->NotifyException(exc);
if (m_stop_exception.IsValid())
{
// We may have more than one exception for a thread, but we need to
@ -560,32 +564,7 @@ MachThread::NotifyException(MachException::Data& exc)
{
m_stop_exception = exc;
}
bool handled = m_arch_ap->NotifyException(exc);
if (!handled)
{
handled = true;
// switch (exc.exc_type)
// {
// case EXC_BAD_ACCESS:
// break;
// case EXC_BAD_INSTRUCTION:
// break;
// case EXC_ARITHMETIC:
// break;
// case EXC_EMULATION:
// break;
// case EXC_SOFTWARE:
// break;
// case EXC_BREAKPOINT:
// break;
// case EXC_SYSCALL:
// break;
// case EXC_MACH_SYSCALL:
// break;
// case EXC_RPC_ALERT:
// break;
// }
}
return handled;
}