RE: Strange GDB behavior

["Arun Vishwanathan" <arun dot vishwanathan at nevisnetworks dot com>]

>From your following command it is evident that "bnp" is a pointer to a
structure. 

>(gdb) p *bnp
>$1 = {egp_next = 0x0, egp_sort_next = 0x0, egp_group = 0x82a45ef0,
>  egp_flags = 138412032, egp_hisrcvdcaps = 0, egp_hiscaps = 0, egp_conf
= {
>      action = 0 '\000'}, egpc_peer_as = 0, egpc_description = 0x0,
>as_count
>= 0,
>    ---Type <return> to continue, or q <return> to quit---q
>Quit


 Hence I think this statement is incorrect 
> (gdb) p *bnp->as_count

It should be 

(gdb) p bnp->as_count



Regards,
Arun

-----Original Message-----
From: gdb-owner@sources.redhat.com [mailto:gdb-owner@sources.redhat.com]
On Behalf Of Monika Chaddha
Sent: Monday, July 26, 2004 4:51 PM
To: 'True Sylvia'
Cc: gdb@sources.redhat.com
Subject: RE: Strange GDB behavior

Hi Sylvia,

Compile yours source code with option -O0 and than try again.... As this
can be a problem due to optimization...
Are you getting the same problem with the other structures also?

Regards
Monika

>-----Original Message-----
>From: True Sylvia [mailto:truesylvia@yahoo.co.uk]
>Sent: Monday, July 26, 2004 2:24 PM
>To: gdb@sources.redhat.com
>Subject: Strange GDB behavior
>
>Hi,
>
>Am using the following flavor of GDB
>
>Current directory is /tftproot/code/
>GDB is free software and you are welcome to distribute copies of it
> under certain conditions; type "show copying" to see the conditions.
>There is absolutely no warranty for GDB; type "show warranty" for
details.
>GDB 4.16 (sparc-sun-solaris2.5.1 --target mips64orion-elf),
>Copyright 1996 Free Software Foundation, Inc...
>(gdb)
>
>I have attached GDB to my executable and the following happens when i
stop
>on one of the breakpoints that i have set
>
>(gdb) info br
>Num Type           Disp Enb Address    What
>1   breakpoint     keep y   0x8087c728 in egp_peer_close at
egp_init.c:5265
>(gdb)
>(gdb) c
>Continuing.
>[New thread 22682896]
>[Switching to thread 22682896]
>
>Breakpoint 1, egp_peer_close (bnp=0x82a461c8, event=2) at
egp_init.c:5265
>(gdb) p *bnp
>$1 = {egp_next = 0x0, egp_sort_next = 0x0, egp_group = 0x82a45ef0,
>  egp_flags = 138412032, egp_hisrcvdcaps = 0, egp_hiscaps = 0, egp_conf
= {
>      action = 0 '\000'}, egpc_peer_as = 0, egpc_description = 0x0,
>as_count
>= 0,
>    ---Type <return> to continue, or q <return> to quit---q
>Quit
>(gdb)
>
>(gdb) p *bnp->as_count
>There is no member named as_count.
>(gdb)
>(gdb) p *bnp->egp_options
>There is no member named egp_options.
>
>*Why* is this happening? I have members as_count and egp_options in my
bnp
>structure. Why isnt GDB showing me thses?
>
>Regards,
>Sylvia T.
>