[lldb-dev] [Bug 18965] New: Can't debug with gdbserver on Linux with top of tree lldb

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=18965

            Bug ID: 18965
           Summary: Can't debug with gdbserver on Linux with top of tree
                    lldb
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: spucci at google.com
    Classification: Unclassified

Created attachment 12140
  --> http://llvm.org/bugs/attachment.cgi?id=12140&action=edit
tar file containing test directory

If I try to attach to a gdbserver with lldb on Ubuntu 12.04 or Ubuntu 13.10,
lldb attaches to the process, successfully stops the program, but is unable to
display the stack or dump the registers:

  (lldb) bt
  * thread #1: tid = 7330, , stop reason = signal SIGTRAP
    * frame #0: 
  (lldb) register read
  error: invalid frame
  (lldb) 

The commands I'm using to connect to the gdbserver are:

  platform select remote-linux
  target create --arch x86_64--linux-gnu ./foo
  gdb-remote localhost:2388

Trying without the "platform select" line gives the same results, as does
removing the --arch x86_64--linux-gnu

A test directory is attached to this bug report.  In that test directory, run
the following, *each in its own shell window* :

- make run  # will run executable, which has an infinite loop of sleep(1)
- make gdbserver # will bring up gdbserver, attaching to the executable
- lldb # will execute commands in .lldbinit, attaching to gdbserver

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