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Re: [PATCH] PIE support for OpenBSD

On 12/21/11 1:26 PM, Mark Kettenis wrote:
Date: Wed, 21 Dec 2011 18:13:15 +0100
From: Jan Kratochvil<>

On Sat, 17 Dec 2011 22:08:29 +0100, Mark Kettenis wrote:
For now this is OpenBSD-specific, but FreeBSD and NetBSD might
implement the PIOD_READ_AUXV request at some point too.
* inf-ptrace.c [PT_IO&& PIOD_READ_AUXV]
So why didn't you put it into *bsd*-nat.c files?
There is already PT_IO support code in inf-ptrace.c.  It makes sense
to keep it all together.  I guess I could move all that code into a
seperate bsd-nat.c file, but that's quite a big undertaking.  And
inf-ptrace.c *BSD really is the primary user of inf-ptrace.c anyway.
The various Linux targets only need it to support ancient versions of
the Linux kernels; linux-nat.c ovverrides everything except for
to_fetch_registers and to_store_registers.  And those are overridden
by most, if not all, *-linux-nat.c files.

I wonder if inf-ptrace.c could be retired altogether. It was always based on a weak assumption, that Unix variants would tend to have the same syntax and semantics for the various ptrace commands, and I suspect that more of its code is unreachable than is obvious from inspection, what with configs overriding or on the verge of being retired themselves.


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