[Bug 23612] New: LLDB fails to detect attaching twice to the same process

Bug ID 23612
Summary LLDB fails to detect attaching twice to the same process
Product lldb
Version unspecified
Hardware All
OS Linux
Status NEW
Severity normal
Priority P
Component All Bugs
Assignee lldb-dev@cs.uiuc.edu
Reporter ravithejawork@gmail.com
Classification Unclassified

While debugging with LLDB, if we try to attach to a process that is already
attached to the debugger, it does not detect that the user is trying to attach
twice to the same process. While this situation is detected in GDB which issues
a warning but LLDB kills the running process and when tries to reattach, it
fails since the process being requested is the same that it killed.

Steps to reproduce
1) Start debugging session with LLDB
2) Put breakpoint anywhere in the beggining
3) Run command "process attach <pid>" where pid is the launched process
4) There is a running process, kill it and attach?: [Y/n] Y
Process 21193 exited with status = 9 (0x00000009) 
error: Invalid arguments for 'process attach'.
Usage: process attach <cmd-options>