From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: Re: The strange ever-changing structure :) Date: Mon, 12 May 2008 14:54:39 -0300 Message-ID: <20080512175439.GC15306@ghostprotocols.net> References: <200805121929.19084@enterprise.flameeyes.is-a-geek.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <200805121929.19084-Pa7mVGAsjv+0j3/lZWhZhlwbbkVOKVeL6HgeeWxq3HYdnm+yROfE0A@public.gmane.org> Sender: dwarves-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Diego 'Flameeyes' =?iso-8859-1?Q?Petten=F2?= Cc: dwarves-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: dwarves@vger.kernel.org Archived-At: List-Archive: List-Post: CCing dwarves ML Em Mon, May 12, 2008 at 07:29:17PM +0200, Diego 'Flameeyes' Petten=F2 e= screveu: > http://www.flameeyes.eu/tmp/dwarves-strange.tbz2 >=20 > The rest of the differences are correct, I'm doing some micro-optimis= ation to=20 > the code, but this: >=20 > ../../../src/xine-engine/alphablend.c: > struct header_s | -24 > data > from: uint8_t * /* 8(0) 48(0) */ > to: uint8_t * /* 8(0) 24(0) */ > 1 struct changed >=20 >=20 > I always find in my codiff outputs... Using readelf we can see that we have two header_s definitions: One that is local to the blend_yuy2_grow_extra_data function and has 32 bytes: <2><5d2b2>: Abbrev Number: 19 (DW_TAG_structure_type) <5d2b3> DW_AT_name : (indirect string, offset: 0x79c6): he= ader_s =20 <5d2b7> DW_AT_byte_size : 32 =20 <5d2b8> DW_AT_decl_file : 1 =20 <5d2b9> DW_AT_decl_line : 1549 =20 <5d2bb> DW_AT_sibling : <0x5d2ec> And another, that is local to the blend_yuv_grow_extra_data function an= d that has 56 bytes. <2><5d401>: Abbrev Number: 19 (DW_TAG_structure_type) <5d402> DW_AT_name : (indirect string, offset: 0x79c6): he= ader_s =20 <5d406> DW_AT_byte_size : 56 =20 <5d407> DW_AT_decl_file : 1 =20 <5d408> DW_AT_decl_line : 1107 =20 <5d40a> DW_AT_sibling : <0x5d43b>=20 I'm now thinking on how to properly support this... I think that the data structures in libdwarves are in the right shape, i.e. these struct= s already are in separate namespaces, I'll check now how pahole/codiff ar= e handling this. - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe dwarves" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html