Any solution for this would be best added as arguments to the detest.py. Maybe 
something like:

--pre-test-commands "log enable -f /tmp/%s-log.txt lldb process"

--post-test-commands "log disable lldb"

And if the commands contain "%s", we replace that with the test name or test 
number?

We can't really come up with a good default for what to log, so it should be 
configurable like the above example. I might know that debug info is borked and 
want to do "log enable dwarf info" or it might be GDB remote is hosed up "log 
enable gdb-remote packets", or something else. These would allow a log 
statement to be run before each test (probably best done in the lldbtest.py 
function Base.setup(self) and Base.tearDown(self)).

Greg

> On Dec 10, 2014, at 5:15 PM, Zachary Turner <ztur...@google.com> wrote:
> 
> I'll look into -v tomorrow, not sure what it does. -t definitely isnt enough 
> though. I basically want all calls to LLDB's logging statements to be output 
> to a file somewhere when i run the test suite.
> 
> The reason this is useful is because i had a race condition that was 
> happening sporadically on different tests when run from the test runner, but 
> never individually. Attaching after the crash wasn't enough to figure out 
> what caused the error, since the crash was a symptom of something that had 
> happened earlier. So i wanted to see a full log for the crash run
> On Wed, Dec 10, 2014 at 4:54 PM Greg Clayton <gclay...@apple.com> wrote:
> Try using "-t -v" when you need to see extra logging output from the test. 
> Let me know if that isn't enough.
> 
> Greg
> 
> > On Dec 10, 2014, at 1:42 PM, Zachary Turner <ztur...@google.com> wrote:
> >
> > Currently we just dump the results of stdout / stderr when running the 
> > tests.  Occasionally it might be useful for someone diagnosing a failing 
> > test to enable more detailed logging.  Essentially running a "log enable" 
> > command at lldb startup.  I see that dotest.py has the ability to pass a 
> > runhook via -k, so that one could in theory run dotest.py -k "log enable 
> > <whatever>".
> >
> > Is it worth putting this behind a separate option in dotest.py?  Something 
> > like this:
> >
> > dotest.py --enable-logging --log-filters=process|platform|communication
> >
> > When --enable-logging is specified, the test runner would decide the output 
> > file name automatically using the value of the -s option, or if 
> > unspecified, the same default that -s uses.
> > _______________________________________________
> > lldb-dev mailing list
> > lldb-dev@cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
> 


_______________________________________________
lldb-dev mailing list
lldb-dev@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev

Reply via email to