Segmentation fault

DarkC0de · 03-11-2010, 03:02 PM

what different between Segmentation fault and aborted

When I read about dbg I make different reason from the tutorial ....
with the same code

example in tutorial the gdb Display a message like this

Code:

Core was generated by `./bof AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2

and in my computer I have

Code:

  Core was generated by `./bof AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
Program terminated with signal 6, Aborted.
#0  0x00b4d422 in __kernel_vsyscall ()

I want to know what the different between them

neonsignal · 03-11-2010, 04:01 PM

A segmentation fault is when the code accesses a memory address that is either not allocated to a segment or is in a segment that it does not have the appropriate rights to access. When this happens a signal 11 is generated, and handled by terminating the process.

An abort is a deliberate termination (eg by calling abort in C), either from the program or one of the libraries. A common case in which this occurs is when the memory allocation library detects a problem in the way that the program has been accessing the heap, and shuts down the program rather than continue with obvious problems.

DarkC0de · 03-12-2010, 01:01 AM

thanks for help