Help Fix The Error Gdb Cannot Find The Limits Of The Current Function Error

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    It’s worth reading these ideas for solutions when you get a gdb error that cannot find the limits of the current functional error message on your machine.

    The debugger knows exactly where for-code functions that appear in your program start and end, either because this information is provided by debug data, or because it uses external symbols, which are usually seen in the program’s executable file, to providing basic information. Information.

    When the stack is normally in the appropriate gesture, it contains a return address to help you with the calling function, and a return address elsewhere for almost any higher-level calling function, much further away. When you run several different commands from the debugger, it uses these return values ​​(and other information about the stack and state of this process) to show you the trademarks for these functions. To do this, you need to find the return address in the debugger to figure out where the use is.

    As soon as you overflow the buffer and additionally damage the stack, the exact return address is destroyed. Instead, they already have a different address (one that assumes your shellcode will work if you the exploit will work). When the debugger tries to figure out what function this wrapper is in, it fails because not all of our addresses come from all functions in your program.

    If an error occurs, the debugger will display an error message with photos.

    Typically, these debuggers can still perform the following functions: Basic. It can show registers and space in your program, but it can step by step and break and go incredibly deeper. It will have problems doing things that require more complex translation: it cannot know where the load frames are, it cannot find local components by name and therefore outside of it.

    I am happy to let you debug the C program I am compiling with gcc for the
    ARM target. I choose the following arguments:
    -march = armv4t -mcpu = arm7tdmi -g -gdwarf-2 -EL
    When I now try to run the command “step” or “next”
    with a shared gdb then I get this is an important fact message:
    “Could not find the bounds of the current function.”
    There cannot be any function with main () in my program.
    “List” of instructions order. Can I see my C code. How can I start the following courses? What should I do ?
    Please help someone! Thanks !

    gdb error cannot find bounds of current function

    Written simply by Terney David
    I like to debug the C program I get with gcc
    for
    -march = armv4t -mcpu = arm7tdmi -g -gdwarf- 2 -EL
    When I am trying to do all the “step” or “next” after the statement
    “I cannot find the limits of a modern function”
    My latest program has no function other than der main ().
    The statement “list” is true. Can I use my own C code.
    How do I follow the next instruction? What should I strive for and what should I do?

    This means that you are not yet using a function known to the debugger.
    Try to “break the main” “continue”?

    Message from David Terney
    Hello,
    I want you to be able to debug the C program I am compiling with gcc
    -march = armv4t -mcpu = arm7tdmi -t -gdwarf- 2 -EL
    When I try to complete a task, the “step” is the “next” instruction

    Be in the know – need a little more detail.
    What did you do and what usually does
    * before * trying to take “step” or “next”?

    Is this a precious distant target? Local? Have you been to “main”?

    Post Turny with DÃ ¡vid
    “Could not find function restrictions for the current day”
    There is no function other than main () in my procedure.
    L ‘list’ may agree. Can I see my C code. How to teach a lesson? weiter What should I do?
    Help, please! Thanks !
    David
    —————————————– – – ———————-
    This message was sent using IMP, the Internet mail program.

    Thank you! Details of the target:
    Mine is likely to be a remote microcontroller AT91SAM7S256. It has ARM7TDMI core. Architecture is literally armv4t.
    I’m using openOCD by Dominic Rath. Thank you 🙂
    I dominate! Never try this on Linux, only on Windows $. I can use yagarto
    (native) or g ++ sourcery toolchain (native, but it can run
    cygwin as well) … The problem is the same in both cases.

    I usually want to debug the following code:
    /*test.c*/
    main () / * This is just meaningless code. * /
    int a;
    int b;
    while (1)
    a = 2;
    b = 3;
    a + = b;

    COLLECT
    == = =======

    gdb error cannot find bounds of current function

    where CC is arm-none-eabi-gcc G ++) (originalNiki or maybe arm-elf-gcc (yagarto).
    After that I just create a .bin file.

    >

    Where OB is arm-none-eabi-objcopy (g ++ source) (yagarto). Me or
    arm-elf-objcopy can compile without errors or warnings.
    I let him test the .bin in Flash using the jtag Wiggler interface and openOCD
    .

    After your current download, I have some info:
    some info: some openocd.c: 82 main (): Open On-Chip Debbuger (2006-09-28 20:00 CEST)
    some info : configuration. c: 50 configuration_output_handler ():
    deamon_startup command not found

    I don’t know what that means, but there is nothing wrong with writing to flash. I am loading test.bin into flash boot from telnet.Reset
    flash

    fading erase 0 2 15
    flash write 0 test.bin 0
    soft reset
    arm7_9 active sw_bkpts

    Debugging
    ======================
    I am using arm-elf or this gdb arm-none-eabi … I will do this character is slightly gdb.

    then he writes some information about himself. I think this is important
    :
    This GDB was built like this: “–host = i686-pc-mingw32
    – target = arm-elf” … (yagarto)

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    –target = arm-none-eabi “… (g ++ source)
    I want Celeron at 800 MHz.
    Then I connect to the remote targetobject (now prompted frequently (gdb))
    (gdb) localhost remote target: 3333
    Remote debug Localhost: 3333
    Buy 0x000048a0 at ?? ()
    (gdb)

    Now if I try to “step” I will probably see “next”:
    (gdb) next
    I cannot find any restrictions for the current function
    (gdb) step
    No restrictions found for the introduced function

    Daniel Jakobovitz wrote to me that I really don’t feel like being in the directorate (). I need to set a breakpoint
    on an entry that belongs to the main object and run the continue command
    . Thanks Daniela! If I practice, then:
    (gdb) breaks this major breakpoint 1 at 0x821c: file test.c, line 6.
    (gdb) continue
    next.

    That’s all … I am not getting the prompt (gdb) … 🙁
    Where was the error? What can I do? Someone help me!

    The list could be good and I was able to debug the assembly code without any problems.

    Sorry, now I testify that when I run the entire continue, step or next
    command along with the openOCD daemon, I am writing a great error message:

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    Gdb Fehler Kann Die Grenzen Der Aktuellen Funktion Nicht Finden
    Blad Gdb Nie Moze Znalezc Granic Biezacej Funkcji
    Oshibka Gdb Ne Mozhet Najti Granicy Tekushej Funkcii
    O Erro Gdb Nao Consegue Encontrar Os Limites Da Funcao Atual
    El Error De Gdb No Puede Encontrar Los Limites De La Funcion Actual
    Gdb 오류가 현재 기능의 경계를 찾을 수 없습니다
    Gdb Felet Kan Inte Hitta Granserna For Aktuell Funktion
    L Errore Gdb Non Riesce A Trovare I Limiti Della Funzione Corrente
    Gdb Fout Kan De Grenzen Van De Huidige Functie Niet Vinden