Re: Cannot insert breakpoint -1.

["Anmol P. Paralkar" <anmol@freescale.com>]

On Fri, 24 Jul 2009, Daniel Jacobowitz wrote:

> On Fri, Jul 24, 2009 at 05:00:45PM -0500, Anmol P. Paralkar wrote:
>>  Yes, I see:
>>
>> (gdb) maintenance info breakpoints Num     Type           Disp Enb
>> Address    What
>> -1      shlib events   keep y   0x00110000 <_start>
>>
>>  How do I delete it/prevent it from being set? Is this a configure
> time setting?
>
> It may help to use a powerpc-elf debugger instead.

  I tried powerpc-elf GDB, and it'll work (I see that I cannot set a
  breakpoint in the application - but that seems to be a problem with
  the application itself).

  --

  I do have one question about powerpc-linux-gnu GDB; I see that the breakpoint
  is inserted inspite of:

(gdb) show stop-on-solib-events
Stopping for shared library events is 0.

  --

  From breakpoint.h:

     /* Some dynamic linkers (HP, maybe Solaris) can arrange for special
        code in the inferior to run when significant events occur in the
        dynamic linker (for example a library is loaded or unloaded).

        By placing a breakpoint in this magic code GDB will get control
        when these significant events occur.  GDB can then re-examine
        the dynamic linker's data structures to discover any newly loaded
        dynamic libraries.  */
     bp_shlib_event,

  --

  I would assume that if stop-on-solib-events is 0, then it ought not to set
  the -1 breakpoint. Please could you help understanding this part.

Thank you,
Anmol.