(My comments are unbold, system commands and prints are bold) Hi,
I followed tutorials below: https://wiki.gnuradio.org/index.php/TutorialsGDB https://wiki.gnuradio.org/index.php/TutorialsDebugging I made a dummy block. I am learning to debug GR apps. I put the following inside my work function *std::cout << "Hello" << std::endl; * *GR_LOG_DEBUG(d_logger, "\n");* *GR_LOG_DEBUG(d_logger, boost::format("Hello Debugger") );* And I expect them to be printed while the program runs. However I never see them printed at all :-/ Then I thought to use gdb and see whats happening. Here is what I did: First I did cmake using the following : *cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_GR_LOG=On -DCMAKE_INSTALL_PREFIX=../ ../* Its says me following. I wanted logging actually but looks like it ignored me. *CMake Warning:* * Manually-specified variables were not used by the project:* * ENABLE_GR_LOG* Is this OK ? Well I went ahead and compiled. Make test was also successful. Now I created a grc file using my own block and in the top_block.py, I did the following at the bottom: *if __name__ == '__main__':* * print 'Blocked waiting for GDB attach (pid = %d)' % (os.getpid(),)* * raw_input ('Press Enter to continue: ')* * main()* Upon running it, I got pid and attached my gdb to that. Hit enter and I got following *john@john-Precision-5510:~/radio/default/src/gr-ieee-80211/build$ sudo gdb -p 6160* *GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1* *Copyright (C) 2016 Free Software Foundation, Inc.* *License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html <http://gnu.org/licenses/gpl.html>>* *This is free software: you are free to change and redistribute it.* *There is NO WARRANTY, to the extent permitted by law. Type "show copying"* *and "show warranty" for details.* *This GDB was configured as "x86_64-linux-gnu".* *Type "show configuration" for configuration details.* *For bug reporting instructions, please see:* *<http://www.gnu.org/software/gdb/bugs/ <http://www.gnu.org/software/gdb/bugs/>>.* *Find the GDB manual and other documentation resources online at:* *<http://www.gnu.org/software/gdb/documentation/ <http://www.gnu.org/software/gdb/documentation/>>.* *For help, type "help".* *Type "apropos word" to search for commands related to "word".* *Attaching to process 6160* *[New LWP 6161]* *[New LWP 6162]* *[New LWP 6163]* *[New LWP 6164]* *[New LWP 6165]* *[New LWP 6166]* *[New LWP 6167]* *[Thread debugging using libthread_db enabled]* *Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".* *0x00007f654851624d in read () at ../sysdeps/unix/syscall-template.S:84* *84 ../sysdeps/unix/syscall-template.S: No such file or directory.* Is this normal ? I searched on google but couldn't understand properly. Well I kept going ahead and made a break point on my work function. *b gr::ieee802_11::test_cf_impl::work(int, std::vector<void const*, std::allocator<void const*> >&, std::vector<void*, std::allocator<void*> >&) * Then I continued in gdb, program started running correctly but never saw my outputs printed. Even I made break point where the print statements are there, dint work :( *Breakpoint 1 at 0x7f65146cc2f0: file /home/john/radio/default/src/gr-ieee-80211/lib/test_cf_impl.cc, line 63.* *(gdb) c* *Continuing.* *[New Thread 0x7f650de3b700 (LWP 6300)]* *[New Thread 0x7f650d63a700 (LWP 6301)]* *[New Thread 0x7f650ce39700 (LWP 6302)]* *[New Thread 0x7f64fc83b700 (LWP 6303)]* *[New Thread 0x7f64fc03a700 (LWP 6304)]* *[New Thread 0x7f64fb308700 (LWP 6306)]* *[New Thread 0x7f64fab07700 (LWP 6307)]* *[New Thread 0x7f64fa306700 (LWP 6308)]* *[New Thread 0x7f64f9b05700 (LWP 6309)]* *[New Thread 0x7f64f9304700 (LWP 6310)]* *[Switching to Thread 0x7f64fab07700 (LWP 6307)]* *Thread 15 "test_cf3" hit Breakpoint 1, gr::ieee802_11::test_cf_impl::work (this=0x2023650, noutput_items=8184, * * input_items=std::vector of length 1, capacity 1 = {...}, * * output_items=std::vector of length 1, capacity 1 = {...})* * at /home/john/radio/default/src/gr-ieee-80211/lib/test_cf_impl.cc:63* *warning: Source file is more recent than executable.* *63 {* *(gdb) n* *[Thread 0x7f64fc03a700 (LWP 6304) exited]* *68 volk_32fc_magnitude_squared_32f(out, in, noi);* *(gdb) n* *63 {* What obvious mistake I am doing ? Isn't this the right way to use GR_LOG_DEBUGGER I was also not able to see the print outputs during my make test.
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
