Re: gdb 6.3 misses breakpoint on Linux when inferior does clone()

Daniel Jacobowitz
2005-05-26T20:03:57Z

On Thu, May 26, 2005 at 01:02:28PM -0700, Satish Mohan wrote:
>
>
> -----Original Message-----
> From: Daniel Jacobowitz [mailto:drow@false.org]
> Sent: Thursday, May 26, 2005 12:44 PM
> To: Satish Mohan
> Cc: gdb@sources.redhat.com
> Subject: Re: gdb 6.3 misses breakpoint on Linux when inferior does clone()
>
> On Thu, May 26, 2005 at 12:40:39PM -0700, Satish Mohan wrote:
> > Hi Â If the inferior does a clone(...,CLONE_VM,...) on Linux, then gdb
> > deletes breakpoints in the child which indirectly affects the parent
> > because of CLONE_VM. The following sample code illustrates the
> > problem:
>
> The kernel does not provide any interface for GDB to know whether or
> not a clone syscall has used CLONE_VM.
>
> [Satish] Doesn't ptrace(PTRACE_GETREGS,...) provide that information ? Or is that arch. specific ?

No, it does not.