From: Alan Modra <amodra@gmail.com>
To: Andreas Schwab <schwab@redhat.com>
Cc: "H.J. Lu" <hjl.tools@gmail.com>,
David Stubbs <stubbs@icerasemi.com>,
binutils@sourceware.org
Subject: Re: VMA section overlap warnings for overlays
Date: Fri, 16 Jul 2010 10:04:00 -0000 [thread overview]
Message-ID: <20100716093630.GN31087@bubble.grove.modra.org> (raw)
In-Reply-To: <m34ofzx4d7.fsf@hase.home>
On Fri, Jul 16, 2010 at 09:39:16AM +0200, Andreas Schwab wrote:
> "H.J. Lu" <hjl.tools@gmail.com> writes:
>
> > Why does an empty section affect section layout?
>
> ??? That's the bug.
I think we could probably remove all the sh_size != 0 tests associated
with ELF_SECTION_IN_SEGMENT in elf.c. I'm not sure why they were
there in the first place, possibly to cover bugs in the precursors to
ELF_SECTION_IN_SEGMENT.
If we do that, then any zero size load/alloc sections will be added to
a segment map by copy_elf_program_header for objcopy and strip, just
as they are for ld. Then the zero size sections will be handled by
assign_file_positions_for_load_sections and placed with other load
sections, rather than being shunted off to
assign_file_positions_for_non_load_sections.
--
Alan Modra
Australia Development Lab, IBM
next prev parent reply other threads:[~2010-07-16 10:04 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-16 13:29 David Stubbs
2010-04-21 8:25 ` Alan Modra
2010-04-21 14:44 ` David Stubbs
2010-04-22 1:11 ` Alan Modra
2010-04-22 1:53 ` Alan Modra
2010-04-22 12:39 ` David Stubbs
2010-04-24 2:18 ` Alan Modra
2010-05-07 16:14 ` David Stubbs
2010-05-08 11:49 ` Alan Modra
2010-05-12 13:19 ` David Stubbs
2010-05-13 3:37 ` Alan Modra
2010-07-15 8:11 ` Andreas Schwab
2010-07-15 13:10 ` Alan Modra
2010-07-15 13:46 ` Andreas Schwab
2010-07-15 13:53 ` H.J. Lu
2010-07-15 14:12 ` Andreas Schwab
2010-07-15 14:17 ` H.J. Lu
2010-07-15 14:18 ` Alan Modra
2010-07-15 14:26 ` H.J. Lu
2010-07-15 14:36 ` Andreas Schwab
2010-07-15 19:09 ` H.J. Lu
2010-07-16 7:39 ` Andreas Schwab
2010-07-16 10:04 ` Alan Modra [this message]
2010-07-19 12:43 ` Andreas Schwab
2010-07-20 5:45 ` Alan Modra
2010-07-20 14:11 ` Alan Modra
2011-02-24 23:49 ` H.J. Lu
2011-02-25 7:49 ` Alan Modra
2011-02-25 10:17 ` Andreas Schwab
2011-02-25 12:30 ` H.J. Lu
2011-02-25 15:55 ` H.J. Lu
2011-02-25 16:23 ` Andreas Schwab
2011-02-25 16:34 ` H.J. Lu
2010-08-28 1:02 ` H.J. Lu
2010-08-28 11:00 ` Alan Modra
2010-08-28 13:39 ` Alan Modra
2010-08-28 17:25 ` H.J. Lu
2010-08-30 4:46 ` Alan Modra
2010-08-30 5:11 ` H.J. Lu
2010-08-30 6:30 ` Alan Modra
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