From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valerie Henson Subject: More info on section mismatches (was Re: [PATCH] [TULIP] Fix section mismatch in de2104x.c) Date: Fri, 6 Oct 2006 12:25:21 -0700 Message-ID: <20061006192520.GB8620@goober> References: <11601583542790-git-send-email-matthew@wil.cx> <4526A2ED.6030406@garzik.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Matthew Wilcox , netdev@vger.kernel.org, Helge Deller , Kyle McMartin , Richard Henderson , Arjan van de Ven , linux-kernel@vger.kernel.org Return-path: Received: from mga09.intel.com ([134.134.136.24]:17039 "EHLO mga09.intel.com") by vger.kernel.org with ESMTP id S932461AbWJFTZz (ORCPT ); Fri, 6 Oct 2006 15:25:55 -0400 To: Jeff Garzik Content-Disposition: inline In-Reply-To: <4526A2ED.6030406@garzik.org> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, Oct 06, 2006 at 02:39:41PM -0400, Jeff Garzik wrote: > Matthew Wilcox wrote: > >From: Helge Deller > > > >WARNING: drivers/net/tulip/de2104x.o - Section mismatch: reference to > >.init.text:de_init_one from .data.rel.local after 'de_driver' (at offset > >0x20) > >WARNING: drivers/net/tulip/de2104x.o - Section mismatch: reference to > >.exit.text:de_remove_one from .data.rel.local after 'de_driver' (at offset > >0x28) > > I'm a bit blind, so help me out here... what precisely is mismatched? > > AFAICS everything is properly marked __init or __exit. (Cc'd Richard Henderson as resident gcc guru.) We're discussing a way to get more information out of section mismatch reports so that the causes of section mismatches are a little more obvious. I'd like to see something like: foo() is marked __init at line 34 bar() calls foo() at line 57 Arjan points out that optimization may make this difficult; I'm happy with a separate script running at a lower level of optimization that you can run by hand when one of these warnings shows up. Ideas? -VAL