Hi Xiaozhu, Sorry, could you please tell me how I can see if that is the line of code that is failing? I believe that should be the one because the error message I am getting apparently comes from the *setenvPreload *function, but I am not 100% sure,
At first, I tried to install the current master branch but I got an error with the *CodeCoverage *example where it said that couldn't find it so, I decided to use your tagged versions instead and that problem did not appear to me again, Thanks Alberto Olmo. 2018-04-26 15:29 GMT+02:00 Xiaozhu Meng <[email protected]>: > Hi Alberto, > > I think your errors are caused by function PCProcess::setEnvPreload (in > dyninstAPI/src/unix.C) returning false. In this function, there are error > loggings for returning false, except for one location (Line 334： bool > result = SymtabAPI::Symtab::openFile(symt_obj, fileName); and Line 335: if( > !result ) return false;) > > Can you confirm that it is this line of code causing the error (the line > number may differ because I looked at the current master branch)? > > Another thing to try is to install the current master branch and see if > the same error happens. > > Thanks, > > --Xiaozhu > > On Thu, Apr 26, 2018 at 4:42 AM, Alberto Olmo <[email protected]> wrote: > >> Hi Xiaozhu, >> >> I have double checked and both libraries that you pointed out were of the >> same version. I have tried to run the program with one or the other and >> none of them are found by Dyninst (the same error persists). Also, maybe >> it's very obvious but, I have noticed if I delete *DYNINST_API_RT_LIB* >> and/or *DYNINSTAPI_RT_LIB* environment variables, the error does not >> change either. >> >> Finally, I have also installed Dyninst 9.3.0 in a Lubuntu v17.10 32 bit >> VM and my application seems to work (I haven't been able to make v9.3.2 >> work with the Counter Mutator example in Lubuntu) however, I would like to >> make it work on the CentOS 7. >> >> All of that makes me think that maybe the problem stems from the >> dependencies or something that I am not doing well, but I am definitely not >> sure as I could install Dyninst in both machines without any errors. >> >> What would you recommend me that I try next? >> >> Thanks again for your help, >> >> >> Alberto Olmo. >> >> >> 2018-04-25 17:27 GMT+02:00 Xiaozhu Meng <[email protected]>: >> >>> Hi Alberto, >>> >>> From your log for the successful run, it seems like you have multiple >>> instances of Dyninst installed: one in >>> /home/aolmo/soft/dyninst-9.3.2/install/lib/ >>> and the other one in /usr/local/lib/. Do you know whether these two >>> instances of Dyninst are the same version? I would recommend that you >>> ensure that you compile your application and run your application with the >>> exact same installation of Dyninst. >>> >>> I am not sure whether this is the cause, but it is indeed strange that >>> one application can find DyninstRT, but the other one cannot find it. >>> >>> Thanks, >>> >>> --Xiaozhu >>> >>> On Wed, Apr 25, 2018 at 2:02 AM, Alberto Olmo <[email protected]> >>> wrote: >>> >>>> Hello Xiaozhu, >>>> >>>> I have doble checked and I don't get much more debug information than >>>> the one I sent you in the last email. All I can see is this: >>>> >>>> Enabling DyninstAPI startup debug >>>>> Enabling DyninstAPI startup debug >>>>> Failed to set environment var to preload RT library >>>>> --FATAL-- #68: Dyninst was unable to create the specified process >>>>> --FATAL-- #68: create process failed bootstrap >>>>> DynInst Exception: Process creation failed, Object name: my_app >>>>> Creating process my_app in directory ./ >>>>> [140571584620416]dynProcess.C[85]: stdin: 0, stdout: 1, stderr: 2 >>>>> Failed to set environment var to preload RT library >>>>> --FATAL-- #68: Dyninst was unable to create the specified process >>>>> --FATAL-- #68: create process failed bootstrap >>>>> DynInst Exception: Process creation failed, Object name: my_app >>>> >>>> >>>> I have also attached to this email the same log (log.txt) in the event >>>> you wanted to see it in a file as well as the logs from a successful >>>> Dyninst execution with a synthetic app, that only counts the number of >>>> times a function is called (mutator-counter-log.txt). >>>> >>>> What do you think it may be happening? >>>> >>>> Thank you very much for your help, >>>> >>>> >>>> Alberto Olmo. >>>> >>>> >>>> 2018-04-24 17:19 GMT+02:00 Alberto Olmo <[email protected]>: >>>> >>>>> Hi Xiaozhu, >>>>> >>>>> I currently don't have access to the machine where I have Dyninst >>>>> installed. I will send the debugging log tomorrow if you don't mind, >>>>> I am using a 64 bit CentOS 7, >>>>> >>>>> Thanks for your rapid response, >>>>> >>>>> >>>>> >>>>> Alberto Olmo. >>>>> >>>>> >>>>> 2018-04-24 16:49 GMT+02:00 Xiaozhu Meng <[email protected]>: >>>>> >>>>>> Hi Alberto, >>>>>> >>>>>> What's your platform (windows or linux; 32bit or 64bit)? Could you >>>>>> send me the debugging log from DYNINST_DEBUG_STARTUP=1？ >>>>>> >>>>>> Thanks, >>>>>> >>>>>> --Xiaozhu >>>>>> >>>>>> On Tue, Apr 24, 2018 at 4:49 AM, Alberto Olmo <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> To whom it may concern, >>>>>>> >>>>>>> My name is Alberto, a student at the Universitat Autonoma de >>>>>>> Barcelona, and I am currently trying to install the Dyninst API in >>>>>>> order to >>>>>>> use it in another application. I have been able to install version 9.3.2 >>>>>>> and its dependencies and test it with a small program which counts the >>>>>>> number of times a function is called. It works correctly. >>>>>>> >>>>>>> However, now I am trying to use it in another application which (I >>>>>>> think) needs to call BPatch::processCreate and I get the following >>>>>>> errors: >>>>>>> >>>>>>> Failed to set environment var to preload RT library >>>>>>>> --FATAL-- #68: Dyninst was unable to create the specified process >>>>>>>> --FATAL-- #68: create process failed bootstrap >>>>>>> >>>>>>> DynInst Exception: Process creation failed, Object name: my_app >>>>>>> >>>>>>> >>>>>>> >>>>>>> I do have exported variables *DYNINSTAPI_RT_LIB* and >>>>>>> *DYNINST_API_RT_LIB* to point to *libdyninstAPI_RT.so* (I think >>>>>>> depending on the Dyninst version one or the other is needed) as well as >>>>>>> set >>>>>>> the flag *DYNINST_DEBUG_STARTUP=1* to get more information about >>>>>>> the problem. >>>>>>> >>>>>>> I have also tried with older versions but the error I get is exactly >>>>>>> the same, >>>>>>> >>>>>>> What would you recommend me that I try? >>>>>>> >>>>>>> I would really appreciate any help you could provide me, >>>>>>> Thank you very much in advance and sorry for the inconveniences, >>>>>>> >>>>>>> Alberto Olmo. >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Dyninst-api mailing list >>>>>>> [email protected] >>>>>>> https://lists.cs.wisc.edu/mailman/listinfo/dyninst-api >>>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >> >
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