Subject: Re: ld.elf_so.core
To: NetBSD/alpha Discussion List <firstname.lastname@example.org>
From: Greg A. Woods <email@example.com>
Date: 11/01/2000 14:20:00
[ On Monday, October 30, 2000 at 16:49:20 (-0500), Todd Vierling wrote: ]
> Subject: Re: ld.elf_so.core
> On Fri, 27 Oct 2000, Greg A. Woods wrote:
> : > > i went and executed /usr/libexec/ld.elf_so and it core
> : > > dump on me. is that normal? here is the gdb output:
> : >
> : > ld.elf_so is the run-time linker - you shouldn't be starting it by
> : > hand... I think this is a case of "don't do that".
> : Nothing should ever core dump -- regardless of how it's invoked!
> Try running /boot sometime.
/boot should not have any executable flag set in its permissions. It
should never be executed (and thus should not be executable) in a
properly configured system -- just as any random hunk of data should
never be executed. It is not a unix format binary even though it might
contain machine code which can be executed in some other environment.
> Some object files are a very special case; the dynamic linker is one of
> them. ld.elf_so expects a very specific set of information in certain
> registers (machine dependent) in order to bootstrap its target program.
So, why's it so difficult for it to do a little bit of error checking?
Nothing that's expected to be run as an executable program should ever
core dump unexpectedly, regardless of how it is (mis)invoked.
Greg A. Woods
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