From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753219AbYIHG5M (ORCPT ); Mon, 8 Sep 2008 02:57:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751962AbYIHG45 (ORCPT ); Mon, 8 Sep 2008 02:56:57 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:35496 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751942AbYIHG44 (ORCPT ); Mon, 8 Sep 2008 02:56:56 -0400 Date: Sun, 7 Sep 2008 23:56:27 -0700 From: Andrew Morton To: Yoshinori Sato Cc: Paulo Marques , lkml Subject: Re: [PATCH] exclude h8300 local symbols (Re: kallsyms exclude local symbols) Message-Id: <20080907235627.293b0a4b.akpm@linux-foundation.org> In-Reply-To: <87zlnotn2l.wl%ysato@users.sourceforge.jp> References: <87fxphzan5.wl%ysato@users.sourceforge.jp> <489AE3C5.2000807@grupopie.com> <87zlnotn2l.wl%ysato@users.sourceforge.jp> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 07 Aug 2008 19:36:18 -0400 Yoshinori Sato wrote: > At Thu, 07 Aug 2008 13:00:05 +0100, > Paulo Marques wrote: > > > > Yoshinori Sato wrote: > > > h8300's nm output include '.Lfoo' local symbols. > > > [...] > > > /* exclude also MIPS ELF local symbols ($L123 instead of .L123) */ > > > - else if (str[0] == '$') > > > + else if (str[0] == '$' || str[0] == '.') > > > > The comment above needs some updating too. Something along these lines: > > > > /* exclude also MIPS ELF local symbols (eg. $L123) and h8300 (eg .LM10) */ > > > > Other than that, the patch seems fine. > > > > -- > > Paulo Marques - www.grupopie.com > > > > "...so she told me it was either her or the ham radio, over." > > Thanks reply. > > Update comment. > And same problem in modpost. > > Warning message dirty. > WARNING: vmlinux.o(.text+0x304b): Section mismatch in reference from the variable .LM10 to the variable .init.text:_free_area_init > The function .LM10() references > the variable __init _free_area_init. > This is often because .LM10 lacks a __init > annotation or the annotation of _free_area_init is wrong. > > fix it. > WARNING: vmlinux.o(.text+0x304b): Section mismatch in reference from the variable _paging_init to the variable .init.text:___alloc_bootmem > The function _paging_init() references > the variable __init ___alloc_bootmem. > This is often because _paging_init lacks a __init > annotation or the annotation of ___alloc_bootmem is wrong. > > Signed-off-by: Yoshinori Sato > > --- > scripts/kallsyms.c | 5 +++-- > scripts/mod/modpost.c | 4 +++- > 2 files changed, 6 insertions(+), 3 deletions(-) > > diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c > index ad2434b..64ad9cf 100644 > --- a/scripts/kallsyms.c > +++ b/scripts/kallsyms.c > @@ -105,8 +105,9 @@ static int read_symbol(FILE *in, struct sym_entry *s) > else if (toupper(stype) == 'U' || > is_arm_mapping_symbol(sym)) > return -1; > - /* exclude also MIPS ELF local symbols ($L123 instead of .L123) */ > - else if (str[0] == '$') > + /* exclude also MIPS ELF (e.g. $L123) and h8300 elf (e.g. .LM123) > + local symbols */ > + else if (str[0] == '$' || str[0] == '.') > return -1; > /* exclude debugging symbols */ > else if (stype == 'N') > diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c > index 418cd7d..e07f4ba 100644 > --- a/scripts/mod/modpost.c > +++ b/scripts/mod/modpost.c > @@ -1042,7 +1042,9 @@ static inline int is_valid_name(struct elf_info *elf, Elf_Sym *sym) > { > const char *name = elf->strtab + sym->st_name; > > - if (!name || !strlen(name)) > + if (!name || !strlen(name) || > + /* exclude h8300 elf local symbols (e.g. .LM123) */ > + name[0] == '.') > return 0; > return !is_arm_mapping_symbol(name); > } This patch broke kallsyms on powerpc. Please see http://ozlabs.org/pipermail/linuxppc-dev/2008-September/062549.html