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Gdb Cannot Find Bounds Of Current Function


Teenage daughter refusing to go to school Web Sites: Disneyland vs Disney World in the United States Is adding the ‘tbl’ prefix to table names really a problem? Is it in the window that appears after we right-click the shortcut and click properties? Unfortunately, gdb refuses to do this simple assembly-level debugging. by vrull [Today at 03:06:45 am] Set the DBGrid column wid... have a peek at this web-site

It will have trouble doing things that require more complicated interpretation: It cannot figure out where stack frames are, it cannot find local variables by name, and so on. I think you should spend some more time with your debugger. –rook Jan 5 '12 at 21:32 But i am executing the program step by step and the problem Mimsy were the Borogoves - why is "mimsy" an adjective? I am missing sth else –curious Jan 5 '12 at 12:32 add a comment| 4 Answers 4 active oldest votes up vote 4 down vote The debugger has knowledge about where

Cannot Find Bounds Of Current Function Code Blocks

share|improve this answer edited Apr 3 '14 at 18:36 answered Apr 3 '14 at 15:30 chux 46.4k63180 If he's to avoid naked magic numbers, he should avoid them in Logged Fedora package maintainer for Code::BlocksJens' Debian - nightlies (and release)Fedora [23 - 25]- and CentOS/RedHat 7 - nightlies huzhongshan Multiple posting newcomer Posts: 109 Re: Cannot find bounds of current Or press C-x C-a after entering gdb. Browse other questions tagged c stack buffer-overflow shellcode or ask your own question.

No copy anymore. So it shows the address and "??" You have to compile with -no-stack-protector, because stack-protector protects you from exactly what you're trying to do. funcb(); } funcb() { funcc(); .... .... .... //it works fine till here then the throws error } funcc() { } sample of the error (gdb) 114 }(gdb) (gdb) 114 }0x08040054 Gdb Set Breakpoint Browse other questions tagged buffer-overflow c or ask your own question.

Similar topics centralised error handelling Fatal error - Nesting too deep strange error/can ne one repoduce it? Does f:x↦2x+3 mean the same thing as f(x)=2x+3? Once you overflow a buffer and corrupt the stack, the proper return address is destroyed. Obviously, GDB is confused, because you're not in any function.

Usually, the debugger can still perform basic functions: It can show you registers and memory in your program, it can still single-step and set breakpoints, and so on. Gdb Cheat Sheet In Doctor Strange what was the title of the book Stan Lee was reading in his cameo? Go to your Linux security man pages, and you will see a large number of security measures default-enabled; and google "smashing the stack for fun in 2011" for possible ways around Logged jens Administrator Lives here!

Gdb Single Step Assembly

Can Sombra teleport to her teleporter after respawn? LLVM GCC 4.2), indicating arch i386. Cannot Find Bounds Of Current Function Code Blocks int main(void) { int i,t,j; int *inser = malloc(sizeof(int)*16384); int *shell = malloc(sizeof(int)*16384); srand(time(NULL)); for(i=0;i<=16384;i++){ *(inser+i) = rand()% 17000;; *(shell+i) = *(inser+i); } for(i=1;i<=16384;i++){ j = i-1; while((*(inser+i)<*(inser+j)) && (j >=0)){ Gdb Disassemble I wouldn't mind a simple way to use a loader to load my object code to a relocated address, but bear in mind the loading has to be done in a

When you CLOSE it, you kill your app. Check This Out Not talking about IDE, but launching gdb from the command line, the first breakpoint is honored, but using the "n" command to execute one step at a time, I get this No copy anymore. Maybe something is wrong in my computer.the project dependencies is really good . Gdb Print Stack

Why did Borden do that to his wife in The Prestige? This works but would get quite laborious after a while, since the size of x86 assembly instructions varies and the location of the assembly will change every time I reboot.) linux When you do that you might realize that your loops will step out of bounds. –Some programmer dude Apr 3 '14 at 13:20 5 i<=16384 --> i<16384 –BLUEPIXY Apr 3 Source This windows appeared: http://postimg.org/image/uaf7fnfbf/ Can anyone help me with this problem?

Type "layout asm", "start" instead. Gdb Commands You can vary the location of the shellcode - the stack, the heap, or even use existing libc code ("jump to libc"). Posts: 7071 Re: Cannot find bounds of current function? « Reply #3 on: March 25, 2013, 08:47:15 am » Quote from: huzhongshan on March 25, 2013, 08:16:22 amQuote from: jens on

Product of all divisors=cube of number.

I appreciate your kind help in understanding this. asked 4 years ago viewed 2979 times active 4 years ago Related 3Stack smashing keep getting segmentation fault16Exploiting buffer overflow leads to segfault0Stack buffer overflow: Is compiler changing variables order, preventing more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed When the debugger tries to figure out which function this address is in, it fails, because the address is not in any of the functions in your program.

So, I've taken a try with FSF gdb 7.6 as per http://sourceware.org/gdb/wiki/BuildingOnDarwin, but I experience the impossibility to go step by step. What do I do with my leftover cash? Join them; it only takes a minute: Sign up Using gdb to single-step assembly code outside specified executable causes error “cannot find bounds of current function” up vote 57 down vote have a peek here Could do j = i; while( j-- > 0 && inser[i] < inser[j] ) { ... } and use size_t for i,j, which makes more sense for as they are array

So, what to do ? The result is that the code "returns" to some unpredictable location and can't figure out where it is it returned to. How can I declare independence from the United States and start my own micro nation? My guess is that the first system (non-executable stack pages) is still active on your machine, hence the segfault.

Logged KMagic Full Member Posts: 100 Re: Cannot find bounds of current function error « Reply #5 on: January 28, 2014, 11:41:34 am » can you tell me what to do On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? You can also use different methods to jump to it - overrun a function pointer, the VFT (in C++), malloc control structures. PC: 0x402670 (gdb) file /opt/j64-602/bin/jconsole Reading symbols from /opt/j64-602/bin/jconsole...done. (no debugging symbols found)...done. (gdb) layout asm (gdb) start (gdb) share|improve this answer edited Mar 11 '10 at 2:12 answered Mar 11

Just learned this method from you. Posts: 4827 Interests on OpenCV and Robotics Re: Cannot find bounds of current function? « Reply #6 on: March 25, 2013, 10:50:14 am » Quote from: huzhongshan on March 25, 2013, Now you're in GDB's TUI mode. Recent versions of gcc will generate some extra hidden code which verifies whether a buffer overflow occurred before doing the fateful ret.

Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the I attach the source code.the caller is int main(){ char FileName[1024]; SomeFunction("Hello"); // cb can step into this function in dll GetFileName(NULL , FileName , "title"); //when this share|improve this answer answered Apr 3 '14 at 13:21 Carl Martin 26 When I used array indexing with a size of 16384, the program started freezing a lot, even Turn on all compiler warnings and you might catch a few errors. #include #include /* Avoid magic numbers */ #define ARRAY_SIZE (16384) #define RAND_CEILING (17000) int main(void) { int

I built wxWidgets 3.0.0 and my own project using the Apple flavor of GCC (aka. Logged huzhongshan Multiple posting newcomer Posts: 109 Re: Cannot find bounds of current function? « Reply #10 on: March 31, 2013, 11:58:45 am » I solved the problem.I reinstalled the windows. Why is Professor Lewin correct regarding dimensional analysis, and I'm not? So I have what I want.

And a serious hacker could add much much more. –ugoren Jan 5 '12 at 19:51 I wanted to pass it just as an input argument to the prog which I guess not.Did you search the web for the error ?There are many related topics, that might guide you into the correct direction, probably a programming error (overridden stack frame, due When gdb wants to show you "where" you are, it likes to guess of what "function" the currently executed opcode is part, so that it may write it ("you are in