On Wed, Oct 17, 2001 at 09:28:42PM -0400, Roland McGrath wrote:
> I hope that stepping through the stubs added to your understanding
> of how RPC's are marshalled into Mach messages. But the upshot is
> that the io_map RPC is returning EOPNOTSUPP. (And the easy way to
> see that in the debugger
Title: reno1
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> ./main: error while loading shared libraries: ./main: failed to map segment from
>shared object: Error 1073741869
That value is EOPNOTSUPP (I used "p (error_t)1073741869" in gdb).
> > Also, show us objdump --private-headers of both executables.
This stuff is probably not actually relevant in
On Wed, Oct 17, 2001 at 04:11:00AM -0400, Roland McGrath wrote:
As before "./mutt" (the working one) is the one on top, and "./main"
(the not working one) is the one of bottom.
> See if you can get anything telling out of LD_DEBUG before you look too
> hard with gdb. LD_DEBUG=help .../ld.so --v
> There are some details about the implementation which are not ideal, but ok:
> Once a task gets a bitmap, it is never destroyed, even if no I/O ports are
> enabled (all bits set). The bitmap is destroyed only with the task.
All bits clear you mean. Anyway, this is not so really bad; tasks tha
If copying it all every time is good enough for Linux, it's good enough for us.
You can change the bitmap offset in the tss with little cost, so you can
always use a smaller bitmap stored at the tail end of the tss segment. For
each task, keep track of the highest port number whose bit is set.
See if you can get anything telling out of LD_DEBUG before you look too
hard with gdb. LD_DEBUG=help .../ld.so --verify should show you the options.
Also, show us objdump --private-headers of both executables.
This is a good thing to always include when the dynamic linker is involved.
Try some
