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Re: [Avr-eclipse-user] No source code when debugging using JTAG
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From: Lukáš Z. <luk...@gm...> - 2012-03-17 14:53:10
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Hi Thomas, thank you for your reply. It was more than helpful. I had "Load image" checked but not "Load symbols" in the latest configuration saved when I went strictly by procedures recommended in the tutorial here http://avr-eclipse.sourceforge.net/wiki/index.php/Debugging#GDB_Hardware_Debugging . I would swear that I tried this settings you sent before with no luck. I suspect one more problem although I am not able to reproduce it and prove. On the main page in the default (of Indigo Eclipse) in the section "Build (if required) ... " Select configuration using C/C++ Application is checked together with use workspace settings. Because I was always building Release builds I suspect Eclipse to create the Release build automatically when needed and release wouldn't contain debugging options. I came to this idea because after I checked load symbols first time it didn't help. I saw in the console something like "Cannot load symbols, no symbols found in xxxxx.elf" if I remember right. After that I tried to change settings on the main page to automatic build of Debug and it started working as a charm. But now when I turn the main page to the original state it keeps working just fine. This is just the feeling with no real proof and I may be totally off ;) Anyway I would like to thank you again for the help. No I am able to debug in C and I am finally free from the AVR Studio :) There is one more thing in my head: In the registers view in the debug perspective there is only one section "General Registers". I wonder if it is possible to show there (optionally perhaps) other important registers (not really registers but IO memory) as shown in AVR studio or VMLAB. It would be more than useful I guess. While I am much better in developing plugins for Eclipse than in AVR C development ;) I would like to offer my help creating this feature if possible. (Off the top of my head -> reuse backend of Memory window, use definitions for specific MCUs to search for addresses to read and to translate the loaded data into some human readable output possibly even with "translations" of applied values like "UART - 9,6k no parity, ....."). I like this feature in the VMLAB but there are obsolete definitions and it is simulation only. If you think this is something worth exploring, just let me know and I will try look into it. Thanks again Best regards Lukas Zaruba Dne 3.3.2012 20:46, Thomas Holland napsal(a): > Hello Lukáš, > > sorry for the late reply, but I was busy the last few days. > > With regard to your problem: Do you have the "Load symbols" flag set > on the "Startup" Tab in the debug lauch configuration? > > > > If you do not have a "Startup" tab, then you need to install the > "C/C++ GDB Hardware Debugging" plugin. It is an optional part of CDT > and it seems that with Eclipse Indigo you must have this installed to > do JTAG debugging. > > > > On 24.02.2012 19:32, Lukáš Záruba wrote: >> Hi, >> >> first I would like to thank all the people who are involved in the >> development and community around the avr-eclipse. You have done a great >> job porting AVR development to Linux world and this is very important to >> me. :) >> >> And here comes my question: >> >> I set up avr-eclipse plugin 2.3.4.20100807PRD into Eclipse Indigo >> release 20110615-0604 on Linux Ubuntu 10.10 64 bit >> Everything seems to be working fine except JTAG debugging. I manually >> start avarice server through the JTAG connection to the device >> (ATmega32) using JTAG mk I cable clone - works perfectly on windows >> using AVR Studio 4. Connection seems to be ok, signature loaded and >> waiting for connections. >> >> I prepared debugging configuration using avr-gdb settings from the wiki >> page (slightly changed due to different wizards in indigo but >> semantically should be the same). Set breakpoint at is set to "main". >> >> When I start debugging, eclipse is properly connected to the avarice, >> which communicates with AVR. Code doesn't break at main but runs. When I >> break it, I can read registers, explore the memory and see the break >> point in the disassembler window. >> >> The problem: >> >> I cannot see any code in the code window, just address into the program >> memory. It corresponds correctly with the content of the disassembler >> window. When I switch the debugging into the instruction mode, stepping >> works fine. But in the disassembler window, code is not included, just >> instructions. (in the screenshot on the wiki there are lines of code >> included). >> >> I suspected wrong settings of the source tab of the debug wizard, but my >> simple testing program is located in the root folder of the project and >> this folder cannot be added to the source lookup paths. >> >> Code is compiled with -g3 switch set in the tool chain. >> >> Do please anybody have an idea why this happens? >> Can it be related to the version of the Eclipse? >> Some bad settings? >> Can it be related to the location of the source file being in the root >> of project? >> >> I just don't know and I spent few days testing variety of different >> settings. I still suspect some wrong connection between the code and the >> runtime position in the program memory because of wrong settings of the >> project (or compiler). >> I don't know if it is of any significance but debugging of the C code >> for PC machine in the same Eclipse and workspace works fine. >> >> Thank you for reading this long thing and also thanks for any answer. >> >> Best >> >> Lukas Zaruba >> >> ------------------------------------------------------------------------------ >> Virtualization & Cloud Management Using Capacity Planning >> Cloud computing makes use of virtualization - but cloud computing >> also focuses on allowing computing to be delivered as a service. >> http://www.accelacomm.com/jaw/sfnl/114/51521223/ >> _______________________________________________ >> avr-eclipse-user mailing list >> avr...@li... >> https://lists.sourceforge.net/lists/listinfo/avr-eclipse-user >> > > > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > > > _______________________________________________ > avr-eclipse-user mailing list > avr...@li... > https://lists.sourceforge.net/lists/listinfo/avr-eclipse-user |
