Re: set breakpoints in remote debugging

Paul Koning
2005-11-02T17:37:44Z

>>>>> "fzchuan" == fzchuan <fzchuan@eos.cs.nthu.edu.tw> writes:

fzchuan> Hi all:

fzchuan> I encountered some problems in GDB remote debugging. In
fzchuan> most of time, GDB host would send correct breakpoint address
fzchuan> to target which I asked it. But sometimes it would send
fzchuan> strange address. That is,in GDB host side,I set breakpoint
fzchuan> on some address,i.e.: (gdb)b *0x8

fzchuan> Then, in target side, target will receive the request. I
fzchuan> print the message received from GDB host, and it shows that
fzchuan> GDB ask target to stop at 0xc6

fzchuan> I use GDB disassemble to query 0x8, and is shows that it is
fzchuan> a Call (JUMP) instruction and jump target address is 0xc6.

fzchuan> Why? thanks

You probably did a step command. Step is usually done by setting a
breakpoint at the address after the instruction. For jumps, that
"next" address is the target address.

paul