[Bug breakpoints/13346] Multiple breakpoints/losing symbol table issue

["jan.kratochvil at redhat dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13346

--- Comment #5 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2011-10-26 15:12:28 UTC ---
(In reply to comment #4)
> Should I be looking at section information for .text?

Yes.


> libblah.so:
>   [12] .text             PROGBITS         0000000000000540  00000540
>        0000000000000138  0000000000000000  AX       0     0     16

Therefore add for any address you find in /proc/PID/maps 0x540 in this case.


> guest# cat /sys/module/openvswitch_mod/sections/.text
> 0xffffffffa00ca000

Not sure why they call it `.text' but there is only a probability of 1:4095
that this is really a .text address.  Most probably you need to add the .text
section address above (from readelf -WS ./openvswitch_mod.ko | grep '\.text').


> (gdb) add-symbol-file ~/vm/openvswitch_mod.ko 0xffffffffa00ca000
> add symbol table from file "/home/jvimal/vm/openvswitch_mod.ko" at
>         .text_addr = 0xffffffffa00ca000

With probability 99.98% this is wrong address so the GDB behavior is bogus
afterwards.


> So, both gdb and guest say that the function dp_process_received_packet is at
> 0xffffffffa00cd3c8.

I do not understand this part but anyway some of the addresses you specified
wrongly.  Not going to spend debugging a situation which is already wrong.

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