On Sep 28, 2010, at 4:42 AM, [email protected] wrote: > I think,I need some help getting the linux process plugin working. Getting it > compiling was easy so far, but it won't work, > and for me its not easy too see how its supposed to work either. > First of all, why does it run the inferior in a pty? I don't see why we would > need an entire terminal there.
On MacOSX we hand a pty to our inferior using posix_spawn file attributes and we run a single read thread to watch for the input. We use a pty by default to stay as close to what would be run in a terminal. You can specify the file handles you want the inferior to use in process launch: process launch --stdin /dev/null --stdout /dev/null --stderr /dev/null .... > Secondly, why is there one thread per fd afterwards? Not sure why linux would be running three threads. > Basicly it does pretty much nothing: > (lldb) r > Launching '/tmp/crashd/a.out' (x86_64) > (lldb) > it randomly works after a few times, but only results in a visible effect > when the inferior crashes. > It then tries to send a message to the crashed process, which crashes lldb. > There is a FIXME in there, > but why is this on a seperate thread in the first place? Eli Friedman was the person leading the linux port, so I will have to defer linux questions to him. I believe the linux plug-in also needs to get a DynamicLoader plug-in created for it at some point so that shared library loads/unloads can be detected and breakpoints in shared libraries will work. You can see all of the logging that you can enable: (lldb) log list Each plug-in that is installed can install named logged channels that can have multiple categories. There is a lot of internal logging you can enable to see what might be going on: (lldb) log enable lldb default Then try and run and see if you see anything obvious. The linux plug-in should add its own logging channel so the details of the debug session can be logged when things go wrong. Greg Clayton _______________________________________________ lldb-dev mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
