https://llvm.org/bugs/show_bug.cgi?id=25046
Bug ID: 25046
Summary: SBProcess::Stop stops only the main thread, not all
threads
Product: lldb
Version: 3.6
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: beryku...@gmail.com
CC: llvm-b...@lists.llvm.org
Classification: Unclassified
Created attachment 14997
--> https://llvm.org/bugs/attachment.cgi?id=14997&action=edit
C++ app with two threads doing an endless printing loop
When I have more threads in an app and I call SBProcess::Stop, only the main
thread stops and the rest of the threads continue.
The description of SBThread::Suspend states: "LLDB currently supports process
centric debugging which means when any thread in a process stops, all other
threads are stopped.".
I attached a simple C++ app that spawns a thread with the pthread library. Both
the main and the second thread print a message and then sleep for a while, when
I stop the process with SBProcess::Stop, the main thread stops printing, but
the other thread keeps printing the message and it's property is_stopped
returns False.
Do I need to do anything else to stop the other threads? I don't know how I
could stop them, as they don't have a stop method (apart of SBThread::Suspend,
but that serves a different purpose as far as I know).
Here's a minimal code example that shows that only the main thread gets stopped
(it prints True, False instead of True, True).
import lldb
import os
import time
debugger = lldb.SBDebugger.Create()
debugger.SetAsync(True)
target = debugger.CreateTargetWithFileAndArch("./test", lldb.LLDB_ARCH_DEFAULT)
process = target.LaunchSimple([], [], os.getcwd())
time.sleep(3) # ensure second thread is started
process.Stop()
for t in process:
print(t.is_stopped)
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
lldb-dev mailing list
lldb-dev@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
