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From: "Boyapati, Anitha" <Anitha.Boyapati@atmel.com>
To: "Alan Modra" <amodra@gmail.com>, <binutils@sourceware.org>
Subject: RE: Strange LMA/VMA behavior with regions
Date: Fri, 13 May 2011 05:02:00 -0000	[thread overview]
Message-ID: <C92FFA3D5F1BC641990154AC4B1C50BA016D2ACB@penmb01.corp.atmel.com> (raw)
In-Reply-To: <20110513034039.GA30815@bubble.grove.modra.org>




>On Fri, May 13, 2011 at 08:14:19AM +0530, Anitha Boyapati wrote:
>> This is a bug.
>
>No, it is not.  Your script sets the VMA in two ways, an address on
>the output section, *and* by specifying a region with '>'.  The
>address overrides the region, so that is what you get for VMA.  You
>are setting the LMA by specifying a region with 'AT>', so you get the
>current address of the region for LMA.
>
>If you want different behaviour you're going to have to spend time
>writing a patch for ld, and then convince maintainers that your change
>won't break other people's ld scripts.
>

I think the same logic given in para(1) is applicable to Case 2 discussed earlier. The relevant portion from linker script for Case 2 is:

.text_os  : ALIGN(8) {
  ...
} >FLASH AT>FLASH

As I understand it, the address returned by ALIGN(8) has overridden both '>FLASH' and 'AT>FLASH'. While in case 1, ALIGN(8) has overridden only '>FLASH'. It is confusing to see different results.

Thanks for the conversations Alan.


Anitha

  parent reply	other threads:[~2011-05-13  5:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <BANLkTi=+O9YvCp42jT3k0fKiC4z0opvAdA@mail.gmail.com>
     [not found] ` <BANLkTinEBMoiGna1KJKn1KqtvNsHdHynoA@mail.gmail.com>
2011-05-12 14:09   ` Anitha Boyapati
2011-05-12 23:34     ` Alan Modra
2011-05-13  2:44       ` Anitha Boyapati
2011-05-13  3:41         ` Alan Modra
2011-05-13  4:15           ` Anitha Boyapati
2011-05-13  5:26             ` Alan Modra
2011-05-13  5:45               ` Boyapati, Anitha
2011-05-13  5:02           ` Boyapati, Anitha [this message]
2011-05-13  5:42             ` Alan Modra
2011-05-11  7:20 Abnikant Singh
2011-05-11  7:45 ` Alan Modra
  -- strict thread matches above, loose matches on Subject: below --
2010-11-29 13:15 Sebastian Huber
2010-11-30 17:00 ` Sebastian Huber
2010-12-01 13:13   ` Alan Modra
2010-12-01 15:03     ` Sebastian Huber
2010-12-02  0:46       ` Alan Modra
2010-12-02  8:03         ` Sebastian Huber

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