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Re: Alignment of .rodata symbols wasting space
- From: John Carter <john dot carter at tait dot co dot nz>
- To: gcc-help at gcc dot gnu dot org
- Date: Fri, 13 May 2005 15:28:00 +1200 (NZST)
- Subject: Re: Alignment of .rodata symbols wasting space
- References: <Pine.LNX.4.61.0505131200590.9718@parore.tait.co.nz>
On Fri, 13 May 2005, John Carter wrote:
As far as I can see, there are two sources for this discrepancy...
1) Alignment. (1 byte symbol followed by a 4 byte aligned symbol)
2) Some large mysterious other thing between the last symbol and the end
of the rodata segment..
Question 1)
Any ld flags / linking script options / ... that I can use to pack all
byte aligned objects together?
I hate answering my own questions... but I finally found in the change log
for the absolutely latest and greatest version of binutils (2.16)
http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/src/ld/NEWS?rev=1.58&content-type=text/plain&cvsroot=src&only_with_tag=binutils-2_16
Added SORT_BY_NAME and SORT_BY_ALIGNMENT to the linker script
language to permit sorting sections by section name or section
maximum alignment.
I am still looking for an answer to this one though...
Question 2)
Any guesses as to what are the mystery rodata items that are not showing
up in objdump --syms?
John Carter Phone : (64)(3) 358 6639
Tait Electronics Fax : (64)(3) 359 4632
PO Box 1645 Christchurch Email : john.carter@tait.co.nz
New Zealand
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