Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759468AbXJDTN4 (ORCPT ); Thu, 4 Oct 2007 15:13:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756471AbXJDTNs (ORCPT ); Thu, 4 Oct 2007 15:13:48 -0400 Received: from pasmtpb.tele.dk ([80.160.77.98]:36999 "EHLO pasmtpB.tele.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756252AbXJDTNq (ORCPT ); Thu, 4 Oct 2007 15:13:46 -0400 Date: Thu, 4 Oct 2007 21:15:10 +0200 From: Sam Ravnborg To: Martin Schwidefsky Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: [PATCH 1/2] s390: beautify vmlinux.lds Message-ID: <20071004191510.GB23211@uranus.ravnborg.org> References: <20071004112706.574737175@de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071004112706.574737175@de.ibm.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5941 Lines: 278 Introduce a consistent style in vmlinux.lds. This style is gradually being introduced for all archs. A few lables were moved inside the section definition so they are assigned the correct value of gcc decide to align the content to another address than the one . has. In the past this has fixed several bugs but for s390 it will not impact due to all the alignmnet already introduced. Stabs definitions are consolidated in asm-generic/vmlinux.lds.h This patch also introduce support for DWARF - without knowing if this makes sense for s390. Signed-off-by: Sam Ravnborg --- build tested only vmlinux.lds.S | 233 +++++++++++++++++++++++++++++++--------------------------- 1 file changed, 127 insertions(+), 106 deletions(-) diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index b4622a3..3a364d1 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -18,121 +18,142 @@ jiffies = jiffies_64; SECTIONS { - . = 0x00000000; - _text = .; /* Text and read-only data */ - .text : { - *(.text.head) + . = 0x00000000; + .text : { + _text = .; /* Text and read-only data */ + *(.text.head) TEXT_TEXT - SCHED_TEXT - LOCK_TEXT - KPROBES_TEXT - *(.fixup) - *(.gnu.warning) + SCHED_TEXT + LOCK_TEXT + KPROBES_TEXT + *(.fixup) + *(.gnu.warning) } = 0x0700 - _etext = .; /* End of text section */ + _etext = .; /* End of text section */ - RODATA + RODATA #ifdef CONFIG_SHARED_KERNEL - . = ALIGN(1048576); /* VM shared segments are 1MB aligned */ + . = ALIGN(1048576); /* VM shared segments are 1MB aligned */ #endif - . = ALIGN(4096); - _eshared = .; /* End of shareable data */ - - . = ALIGN(16); /* Exception table */ - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; - - NOTES - - BUG_TABLE - - .data : { /* Data */ - DATA_DATA - CONSTRUCTORS - } - - . = ALIGN(4096); - __nosave_begin = .; - .data_nosave : { *(.data.nosave) } - . = ALIGN(4096); - __nosave_end = .; - - . = ALIGN(4096); - .data.page_aligned : { *(.data.idt) } - - . = ALIGN(256); - .data.cacheline_aligned : { *(.data.cacheline_aligned) } - - . = ALIGN(256); - .data.read_mostly : { *(.data.read_mostly) } - _edata = .; /* End of data section */ - - . = ALIGN(8192); /* init_task */ - .data.init_task : { *(.data.init_task) } - - /* will be freed after init */ - . = ALIGN(4096); /* Init code and data */ - __init_begin = .; - .init.text : { - _sinittext = .; - *(.init.text) - _einittext = .; - } - /* - * .exit.text is discarded at runtime, not link time, - * to deal with references from __bug_table - */ - .exit.text : { *(.exit.text) } - - .init.data : { *(.init.data) } - . = ALIGN(256); - __setup_start = .; - .init.setup : { *(.init.setup) } - __setup_end = .; - __initcall_start = .; - .initcall.init : { - INITCALLS - } - __initcall_end = .; - __con_initcall_start = .; - .con_initcall.init : { *(.con_initcall.init) } - __con_initcall_end = .; - SECURITY_INIT + . = ALIGN(4096); + _eshared = .; /* End of shareable data */ + + . = ALIGN(16); /* Exception table */ + __ex_table : { + __start___ex_table = .; + *(__ex_table) + __stop___ex_table = .; + } + + NOTES + BUG_TABLE + + .data : { /* Data */ + DATA_DATA + CONSTRUCTORS + } + + . = ALIGN(4096); + .data_nosave : { + __nosave_begin = .; + *(.data.nosave) + } + . = ALIGN(4096); + __nosave_end = .; + + . = ALIGN(4096); + .data.page_aligned : { + *(.data.idt) + } + + . = ALIGN(256); + .data.cacheline_aligned : { + *(.data.cacheline_aligned) + } + + . = ALIGN(256); + .data.read_mostly : { + *(.data.read_mostly) + } + _edata = .; /* End of data section */ + + . = ALIGN(8192); /* init_task */ + .data.init_task : { + *(.data.init_task) + } + + /* will be freed after init */ + . = ALIGN(4096); /* Init code and data */ + __init_begin = .; + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } + /* + * .exit.text is discarded at runtime, not link time, + * to deal with references from __bug_table + */ + .exit.text : { + *(.exit.text) + } + + .init.data : { + *(.init.data) + } + . = ALIGN(256); + .init.setup : { + __setup_start = .; + *(.init.setup) + __setup_end = .; + } + .initcall.init : { + __initcall_start = .; + INITCALLS + __initcall_end = .; + } + + .con_initcall.init : { + __con_initcall_start = .; + *(.con_initcall.init) + __con_initcall_end = .; + } + SECURITY_INIT #ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(256); - __initramfs_start = .; - .init.ramfs : { *(.init.initramfs) } - . = ALIGN(2); - __initramfs_end = .; + . = ALIGN(256); + .init.ramfs : { + __initramfs_start = .; + *(.init.initramfs) + . = ALIGN(2); + __initramfs_end = .; + } #endif - PERCPU(4096) - . = ALIGN(4096); - __init_end = .; - /* freed after init ends here */ - - __bss_start = .; /* BSS */ - .bss : { *(.bss) } - . = ALIGN(2); - __bss_stop = .; - - _end = . ; - - /* Sections to be discarded */ - /DISCARD/ : { - *(.exit.data) *(.exitcall.exit) - } - - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } + + PERCPU(4096) + . = ALIGN(4096); + __init_end = .; /* freed after init ends here */ + + /* BSS */ + .bss : { + __bss_start = .; + *(.bss) + . = ALIGN(2); + __bss_stop = .; + } + + _end = . ; + + /* Sections to be discarded */ + /DISCARD/ : { + *(.exit.data) + *(.exitcall.exit) + } + + /* Debugging sections. */ + STABS_DEBUG + DWARF_DEBUG } - 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/