Re: Quick pc hack for exe loading

[Rick Moseley <rmoseley@redhat.com>]

Hi Mark,

Cool. That ought to be fine.

Rick

Mark Wielaard wrote:
> Hi Rick,
>
> I wanted to test some libunwind lookup changes I made locally and the
> exe target is nice for that since it is so simple. The attached patch
> sets up the PC value and makes it possible to see where the exe would
> start:
>
> (fhpd) load /bin/bash
> Loaded executable file: /bin/bash
> (fhpd) where
> [0.0]
> DebugInfoStackFactory.printStackTrace() numberOfFrames 0
> #0 0x0000000000419150 in _start () from /bin/bash
>
> It still cannot actually do the other way around though:
>
> (fhpd) print _start
> [0.0]
> Error: Object _start was not found
>
> Haven't looked into why that was since I was only interested in the
> stack thing.
>
> 2007-11-23  Mark Wielaard  <mwielaard@redhat.com>
>
>         * LinuxExeTask.java (bankBuffers): New final field.
>         (LinuxExeTask): Setup bankBuffers and explicitly set pc.
>         (sendrecRegisterBanks): Use cached bankBuffers.
>
> It is a bit of a hack (as the comment explains), but it seems to work
> great and all tests still pass with this applied. Feel free to rip it
> out and completely replace with a real, less hacky, solution though.
>
> Cheers,
>
> Mark
>