[lldb-dev] How to debug LLDB server?

[Greg Clayton via lldb-dev]

We set this manually in the Xcode project for "Debug" and "DebugClang" build variants. The cmake should be able to do the same, but I am not sure if it is. Feel free to make it do so. I am not very good with cmake, so I won't be much help.

Greg

> On Oct 7, 2015, at 11:09 AM, Eugene Birukov <eugenebi at hotmail.com> wrote:
> 
> Thanks! 
>  
> A newbie question then: how to trigger LLDB_CONFIGURATION_DEBUG when I run cmake? I am sure that I built debug version, but packet timeout is still 1 to me.
>  
> (gdb) p m_packet_timeout
> $1 = 1
> 
>  
> > Subject: Re: [lldb-dev] How to debug LLDB server?
> > From: gclayton at apple.com
> > Date: Wed, 7 Oct 2015 11:04:45 -0700
> > CC: lldb-dev at lists.llvm.org
> > To: eugenebi at hotmail.com
> > 
> > Most calls for lldb-server should use an instance variable GDBRemoteCommunication::m_packet_timeout which you could then modify. But this timeout you are talking about is the time that the expression can take when running. I would just bump these up temporarily while you are debugging to avoid the timeouts. Just don't check it in.
> > 
> > So for GDB Remote packets, we already bump the timeout up in the GDBRemoteCommunication constructor:
> > 
> > #ifdef LLDB_CONFIGURATION_DEBUG
> > m_packet_timeout (1000),
> > #else
> > m_packet_timeout (1),
> > #endif
> > 
> > 
> > Anything else is probably expression timeouts and you will need to manually bump those up in order to debug, or you could do the same thing as the GDB Remote in InferiorCallPOSIX.cpp:
> > 
> > #ifdef LLDB_CONFIGURATION_DEBUG
> > options.SetTimeoutUsec(50000000);
> > #else
> > options.SetTimeoutUsec(500000);
> > #endif
> > 
> > 
> > > On Oct 7, 2015, at 10:33 AM, Eugene Birukov via lldb-dev <lldb-dev at lists.llvm.org> wrote:
> > > 
> > > Hello,
> > >  
> > > I am trying to see what is going inside LLDB server 3.7.0 but there are a lot of timeouts scattered everywhere. Say, InferiorCallPOSIX.cpp:74 sets hard-coded timeout to 500,000us, etc. These timeouts fire if I spend any time on breakpoint inside server and make debugging experience miserable. Is there any way to turn them all off?
> > >  
> > > BTW, I am using LLDB as a C++ API, not as standalone program, but I have debugger attached to it and can alter its memory state.
> > >  
> > > Thanks,
> > > Eugene
> > >  
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> >