Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753164Ab3CXH1w (ORCPT ); Sun, 24 Mar 2013 03:27:52 -0400 Received: from mail-pa0-f53.google.com ([209.85.220.53]:38718 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753060Ab3CXH1s (ORCPT ); Sun, 24 Mar 2013 03:27:48 -0400 From: Jiang Liu To: Andrew Morton , David Rientjes Cc: Jiang Liu , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , Jianguo Wu , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Chris Metcalf , Rusty Russell , Bjorn Helgaas , "David S. Miller" , David Howells Subject: [RFC PATCH v2, part4 06/39] tile: normalize global variables exported by vmlinux.lds Date: Sun, 24 Mar 2013 15:24:32 +0800 Message-Id: <1364109934-7851-7-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1364109934-7851-1-git-send-email-jiang.liu@huawei.com> References: <1364109934-7851-1-git-send-email-jiang.liu@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3478 Lines: 105 Normalize global variables exported by vmlinux.lds to conform usage guidelines from include/asm-generic/sections.h. 1) Use _text to mark the start of the kernel image including the head text, and _stext to mark the start of the .text section. 2) Export mandatory global variables __init_begin and __init_end. Signed-off-by: Jiang Liu Cc: Chris Metcalf Cc: Rusty Russell Cc: Bjorn Helgaas Cc: "David S. Miller" Cc: Wen Congyang Cc: David Howells Cc: linux-kernel@vger.kernel.org --- arch/tile/include/asm/sections.h | 2 +- arch/tile/kernel/setup.c | 4 ++-- arch/tile/kernel/vmlinux.lds.S | 4 +++- arch/tile/mm/init.c | 2 +- 4 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h index d062d46..7d8a935 100644 --- a/arch/tile/include/asm/sections.h +++ b/arch/tile/include/asm/sections.h @@ -34,7 +34,7 @@ extern char __sys_cmpxchg_grab_lock[]; extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; #endif -/* Handle the discontiguity between _sdata and _stext. */ +/* Handle the discontiguity between _sdata and _text. */ static inline int arch_is_kernel_data(unsigned long addr) { return addr >= (unsigned long)_sdata && diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index d1e15f7..a986b71 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -307,8 +307,8 @@ static void __cpuinit store_permanent_mappings(void) hv_store_mapping(addr, pages << PAGE_SHIFT, pa); } - hv_store_mapping((HV_VirtAddr)_stext, - (uint32_t)(_einittext - _stext), 0); + hv_store_mapping((HV_VirtAddr)_text, + (uint32_t)(_einittext - _text), 0); } /* diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S index 631f10d..a13ed90 100644 --- a/arch/tile/kernel/vmlinux.lds.S +++ b/arch/tile/kernel/vmlinux.lds.S @@ -27,7 +27,6 @@ SECTIONS .intrpt1 (LOAD_OFFSET) : AT ( 0 ) /* put at the start of physical memory */ { _text = .; - _stext = .; *(.intrpt1) } :intrpt1 =0 @@ -36,6 +35,7 @@ SECTIONS /* Now the real code */ . = ALIGN(0x20000); + _stext = .; .text : AT (ADDR(.text) - LOAD_OFFSET) { HEAD_TEXT SCHED_TEXT @@ -58,11 +58,13 @@ SECTIONS #define LOAD_OFFSET PAGE_OFFSET . = ALIGN(PAGE_SIZE); + __init_begin = .; VMLINUX_SYMBOL(_sinitdata) = .; INIT_DATA_SECTION(16) :data =0 PERCPU_SECTION(L2_CACHE_BYTES) . = ALIGN(PAGE_SIZE); VMLINUX_SYMBOL(_einitdata) = .; + __init_end = .; _sdata = .; /* Start of data section */ diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 45ce26d..f2ac2f4 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -562,7 +562,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) prot = ktext_set_nocache(prot); } - BUG_ON(address != (unsigned long)_stext); + BUG_ON(address != (unsigned long)_text); pte = NULL; for (; address < (unsigned long)_einittext; pfn++, address += PAGE_SIZE) { -- 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/