gdb: How to set breakpoint in python C extension code?












0















I have some code where py script invoke C extension like



def f():
from libXXX import XXXWrapper # libXXX.so in the same dir as this .py
XXXWrapper.blabla()


The C source code are located elsewhere (I moved .so to py dir after compilation)
I tried pdb.set_trace() here but I can't step into the C code (obviously)
Then I tried to use gdb but I'm wondering how can I tell gdb the shared library location (I tried set env LD_LIBRARY_PATH but that's not working) and the C source code location. Otherwise the gdb just can't find the lib and gives




No symbol table is loaded. Use the "file" command.



Make breakpoint pending on future shared library load?




info. Also it won't stop when I run the script later..










share|improve this question



























    0















    I have some code where py script invoke C extension like



    def f():
    from libXXX import XXXWrapper # libXXX.so in the same dir as this .py
    XXXWrapper.blabla()


    The C source code are located elsewhere (I moved .so to py dir after compilation)
    I tried pdb.set_trace() here but I can't step into the C code (obviously)
    Then I tried to use gdb but I'm wondering how can I tell gdb the shared library location (I tried set env LD_LIBRARY_PATH but that's not working) and the C source code location. Otherwise the gdb just can't find the lib and gives




    No symbol table is loaded. Use the "file" command.



    Make breakpoint pending on future shared library load?




    info. Also it won't stop when I run the script later..










    share|improve this question

























      0












      0








      0








      I have some code where py script invoke C extension like



      def f():
      from libXXX import XXXWrapper # libXXX.so in the same dir as this .py
      XXXWrapper.blabla()


      The C source code are located elsewhere (I moved .so to py dir after compilation)
      I tried pdb.set_trace() here but I can't step into the C code (obviously)
      Then I tried to use gdb but I'm wondering how can I tell gdb the shared library location (I tried set env LD_LIBRARY_PATH but that's not working) and the C source code location. Otherwise the gdb just can't find the lib and gives




      No symbol table is loaded. Use the "file" command.



      Make breakpoint pending on future shared library load?




      info. Also it won't stop when I run the script later..










      share|improve this question














      I have some code where py script invoke C extension like



      def f():
      from libXXX import XXXWrapper # libXXX.so in the same dir as this .py
      XXXWrapper.blabla()


      The C source code are located elsewhere (I moved .so to py dir after compilation)
      I tried pdb.set_trace() here but I can't step into the C code (obviously)
      Then I tried to use gdb but I'm wondering how can I tell gdb the shared library location (I tried set env LD_LIBRARY_PATH but that's not working) and the C source code location. Otherwise the gdb just can't find the lib and gives




      No symbol table is loaded. Use the "file" command.



      Make breakpoint pending on future shared library load?




      info. Also it won't stop when I run the script later..







      python gdb






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 14 '18 at 19:13









      gopher_rocksgopher_rocks

      1237




      1237
























          0






          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53307264%2fgdb-how-to-set-breakpoint-in-python-c-extension-code%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53307264%2fgdb-how-to-set-breakpoint-in-python-c-extension-code%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Xamarin.iOS Cant Deploy on Iphone

          Glorious Revolution

          Dulmage-Mendelsohn matrix decomposition in Python