Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755693Ab2EHSXx (ORCPT ); Tue, 8 May 2012 14:23:53 -0400 Received: from mga01.intel.com ([192.55.52.88]:11241 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755495Ab2EHSXs (ORCPT ); Tue, 8 May 2012 14:23:48 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="150637048" From: Jarkko Sakkinen To: linux-kernel@vger.kernel.org Cc: linux-kbuild@vger.kernel.org, Michal Marek , Sam Ravnborg , Joseph Cihula , Shane Wang , hpa@linux.intel.com Subject: [PATCH 09/23] x86, realmode: Add .text64 section, make barrier symbols absolute Date: Tue, 8 May 2012 21:22:32 +0300 Message-Id: <1336501366-28617-10-git-send-email-jarkko.sakkinen@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1336501366-28617-1-git-send-email-jarkko.sakkinen@intel.com> References: <1336501366-28617-1-git-send-email-jarkko.sakkinen@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1423 Lines: 62 From: "H. Peter Anvin" Add a .text64 section. The purpose of this is to keep 16-, 32- and 64-bit code segregated into separate sections, mainly to keep disassembly sane. Move barrier symbols out of sections to avoid the "symbol in empty section" problem in some versions of GNU ld. Signed-off-by: H. Peter Anvin --- arch/x86/realmode/rm/realmode.lds.S | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/x86/realmode/rm/realmode.lds.S b/arch/x86/realmode/rm/realmode.lds.S index 91b83ea..4d4afca 100644 --- a/arch/x86/realmode/rm/realmode.lds.S +++ b/arch/x86/realmode/rm/realmode.lds.S @@ -32,8 +32,8 @@ SECTIONS } . = ALIGN(PAGE_SIZE); + pa_text_start = .; .text : { - pa_text_start = .; *(.text) *(.text.*) } @@ -41,9 +41,14 @@ SECTIONS .text32 : { *(.text32) *(.text32.*) - pa_ro_end = .; } + .text64 : { + *(.text64) + *(.text64.*) + } + pa_ro_end = .; + . = ALIGN(PAGE_SIZE); .data : { *(.data) @@ -59,8 +64,8 @@ SECTIONS . = ALIGN(4); .signature : { *(.signature) - pa_end = .; } + pa_end = .; /DISCARD/ : { *(.note*) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/