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Re: VMA section overlap warnings for overlays

From: Alan Modra <amodra at gmail dot com>
To: David Stubbs <stubbs at IceraSemi dot com>
Cc: binutils at sourceware dot org, sdkteam-gnu <sdkteam-gnu at IceraSemi dot com>
Date: Thu, 13 May 2010 13:07:42 +0930
Subject: Re: VMA section overlap warnings for overlays
References: <4D60B0700D1DB54A8C0C6E9BE69163700E67DFD1@EXCHANGEVS.IceraSemi.local> <20100421082441.GG3510@bubble.grove.modra.org> <4D60B0700D1DB54A8C0C6E9BE69163700E7815C7@EXCHANGEVS.IceraSemi.local> <20100422011106.GI3510@bubble.grove.modra.org> <20100422015303.GK3510@bubble.grove.modra.org> <4D60B0700D1DB54A8C0C6E9BE69163700E7F2F15@EXCHANGEVS.IceraSemi.local> <20100424021750.GQ3510@bubble.grove.modra.org> <4D60B0700D1DB54A8C0C6E9BE69163700EC60376@EXCHANGEVS.IceraSemi.local> <20100508114913.GA31122@bubble.grove.modra.org> <4D60B0700D1DB54A8C0C6E9BE69163700ED69E1A@EXCHANGEVS.IceraSemi.local>

On Wed, May 12, 2010 at 02:19:24PM +0100, David Stubbs wrote:
> I have however found another potential problem with strip. Here's the
> test:
[snip]
> brsbs01 1>strip test.exe
> BFD: stHVOxcK: section .overlay1.bss lma 0x1021 overlaps previous
> sections
> BFD: stHVOxcK: section .overlay2.bss lma 0x1021 overlaps previous
> sections

This is caused by the heuristics we use to set LMA for SHT_NOBITS
sections (bfd/elf.c:984).  I don't think we can make any changes here
though: sh_offset isn't really valid for a SHT_NOBITS section.

-- 
Alan Modra
Australia Development Lab, IBM

References:
- RE: VMA section overlap warnings for overlays
  - From: David Stubbs
- Re: VMA section overlap warnings for overlays
  - From: Alan Modra
- RE: VMA section overlap warnings for overlays
  - From: David Stubbs

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