[lldb-dev] LLDB got SIGCHLD on hitting the breakpoint

[Greg Clayton via lldb-dev]

LLDB 5 is really old and shouldn't be used for linux debugging as linux support had many issues back then. I would suggest downloading and building the latest and greatest LLDB from llvm.org <http://llvm.org/> or using the clang 10 release version of LLDB, or the new clang 11 release version that is about to be released.

Greg

> On Sep 16, 2020, at 9:03 AM, le wang via lldb-dev <lldb-dev at lists.llvm.org> wrote:
> 
> Hello,everyone:
> I've got a problem, when debugging my process with lldb tool on linux OS(CentOS7).While I use lldb command to set breakpoints, and launch my process, my process will execute a binary code which contains debug information, but when my process launched, all breakpoints can not be hit, and after a while, received several informations like below:        
> Process 4256 stopped and restarted: thread1 received signal:   SIGCHLD
> Process 4256 stopped and restarted: thread1 received signal:   SIGCHLD
> Process 4256 stopped and restarted: thread1 received signal:   SIGCHLD
> Process 4256 stopped and restarted: thread1 received signal:   SIGCHLD
> Process 4256 stopped and restarted: thread2 received signal:   SIGCHLD
> 
> Details can be seen in my snapshot in attachment.
> It seems that lldb crashed, and at last although my process is executed,  this is meaningless. I have checked that debug information in IR is correct. I have no idea the reason. Can anyone tell me the reason and how to fix this problem. My lldb version is 5.0.0, which got from http://www.llvm.org/ <http://www.llvm.org/> with llvm5.0.0
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