Re: [DynInst_API:] ppcle detach removes snippets

[Stan Cox <scox@xxxxxxxxxx>]

> I agree that detach should not remove instrumentation.
>
> Is it a power 8 or power 9 machine? And presumably it is Dyninst 10.1? 
I am currently using dyninst 10.1.0 on a:
uname -a
Linux rh-power-vm07.fit.vutbr.cz 5.0.16-100.fc28.ppc64le #1 SMP Wed May 
15 08:12:10 UTC 2019 ppc64le ppc64le ppc64le GNU/Linux
> (1) "app_proc->detach(true);" actually will continue the mutatee, so you 
> donât have to call "app_proc->continueExecution();â before it. I know 
> that this combination works on other platforms, but I just want to 
> isolate the problem. Can you see if the same problem occurs if you 
> delete âcontinueExecution()â?
No change with or without continueExecution.  Adding waitForStatusChange 
before the delete will insure the snippets are not removed.
% cd /home/scox/smoke-test/dynamic
% ./mutatee -v 5 & LD_LIBRARY_PATH=/home/scox/dyninst-10.1.0/install/lib 
DYNINSTAPI_RT_LIB=/home/scox/dyninst-10.1.0/install/lib/libdyninstAPI_RT.so 
./mutator $!
[1] 11412
FUNCTION EXECUTED. VALUE = 0
FUNCTION EXECUTED. VALUE = 1
MUTATION DONE. MUTATOR IS GOING...
rh-power-vm07:~/smoke-test/dynamic
FUNCTION EXECUTED. VALUE = 1
FUNCTION EXECUTED. VALUE = 1
FUNCTION EXECUTED. VALUE = 1

> (2) Âdetach will remove instrumentations in fork, exec, and exit, which 
> are used for controlling the mutatee. Can you go to source file 
> dyninstAPI/src/dynProcess.C and comment out lines between 1064 and 1069? 
> These lines should look like:
I'll give that a whirl