| re: Need help in understanding gdb messages
I think
- your executable has not been built
with GDB symbols (gcc with '-g' option) ! or
- you have attached your gdb to a process which
doesnt define that symbol or
- using wrong gdb (its specific to platform)
- Ravi
O.R.Senthil Kumaran wrote:[color=blue]
> Hi list:
>
> Following is a piece of code:
>
> main(int argc, char** argv)
> {
> int rc, result;
> struct passwd *uidpwent;
>
> /* init resources */
> rpl_message_init();
>
> /* TODO: consider placing this near webasset.c */
> /* set the contributer to the name of the process owner */
> uidpwent = getpwuid(getuid());
> local_user = (rpl_str_t)rpl_me_malloc(strlen(uidpwent->pw_name)
> + 1); sprintf(local_user, uidpwent->pw_name);
> .
> .
> The Question I have is w.r.t to the gdb execution o/p below:
>
> when running gdb, with stepi what these ?? (); what does it signify and
> why an instruction like 0x001469e0 in _dl_runtime_resolve () from
> /lib/ld-linux.so.2(gdb) is called a number of times at different
> addresses.
>
> Please help me in understanding this.
> Senthil
>
>
>
> 0x0804bef4 in rpl_message_init () at messages.c:127
> 127 msg_global.tptr = NULL;
> (gdb)
> main (argc=1, argv=0xfee29394) at rapple.c:216
> 216 uidpwent = getpwuid(getuid());
> (gdb)
> 0x08049af2 216 uidpwent = getpwuid(getuid());
> (gdb)
> 0x08049768 in ?? ()
> (gdb)
> 0x0804976e in ?? ()
> (gdb)
> 0x08049773 in ?? ()
> (gdb)
> 0x080493b8 in ?? ()
> (gdb)
> 0x080493be in ?? ()
> (gdb)
> 0x001469e0 in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x001469e1 in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x001469e2 in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x001469e3 in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x001469e7 in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x001469eb in _dl_runtime_resolve () from /lib/ld-linux.so.2
> (gdb)
> 0x00146a20 in fixup () from /lib/ld-linux.so.2
> (gdb)
> 0x00146a21 in fixup () from /lib/ld-linux.so.2
> (gdb)
>[/color]
| 
