{"id":339,"date":"2018-03-14T09:39:04","date_gmt":"2018-03-14T01:39:04","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=339"},"modified":"2018-03-14T09:39:04","modified_gmt":"2018-03-14T01:39:04","slug":"linux%e7%9a%84arch-arm-kernel-vmlinux-lds%ef%bc%8c%e7%9c%9f%e6%ad%a3%e5%86%85%e6%a0%b8%e4%b8%80%e5%88%87%e4%bb%8e%e8%bf%99%e9%87%8c%e5%bc%80%e5%a7%8b","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=339","title":{"rendered":"linux\u7684arch\/arm\/kernel\/vmlinux.lds\uff0c\u771f\u6b63\u5185\u6838\u4e00\u5207\u4ece\u8fd9\u91cc\u5f00\u59cb"},"content":{"rendered":"
<\/div>\n
\u8981\u6ce8\u610f\u548c\u201c\/arch\/arm\/boot\/compressed\/vmlinux.lds\u201d\u7684\u533a\u522b\uff0c\u90a3\u4e2a\u662fboot\u65b9\u5f0f\u65f6\u7684linux\u5165\u53e3\uff0c\u8fd9\u4e2a\u624d\u662f\u6b63\u5e38\u8fd0\u884c\u65f6\u7684linux\u5185\u6838\u5165\u53e3\u3002<\/span><\/div>\n
<\/div>\n
\u8fd9\u4e2avmlinux.lds\u7531arch\/arm\/kernel\/vmlinux.lds.S\u751f\u6210\u3002<\/div>\n
piggy.gz\u7684\u5165\u53e3\u5b9a\u4e49\u5728\u8fd9\u91cc\u3002<\/div>\n
<\/div>\n
<\/div>\n
#include <asm-generic\/vmlinux.lds.h>
\n#include <asm\/thread_info.h>
\n#include <asm\/memory.h><\/p>\n

OUTPUT_ARCH(arm)
\nENTRY(stext) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/*\u5165\u53e3\u4e3astext*\/<\/p>\n

#ifndef __ARMEB__
\njiffies = jiffies_64;
\n#else
\njiffies = jiffies_64 + 4;
\n#endif<\/p>\n

SECTIONS
\n{
\n#ifdef CONFIG_XIP_KERNEL
\n. = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
\n#else
\n. = PAGE_OFFSET + TEXT_OFFSET;
\n#endif
\n.text.head : { \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/*\u7b2c\u4e00\u4e2a\u6bb5\u4e3a.text.head\uff0c\u8fd9\u4e2a\u5b9a\u4e49\u5728arch\/arm\/kernel\/head.S\u91cc\u9762*\/
\n_stext = .;
\n_sinittext = .;
\n*(.text.head)
\n}<\/p>\n

.init : {\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* Init code and data\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/
\nINIT_TEXT
\n_einittext = .;
\n__proc_info_begin = .;
\n*(.proc.info.init)
\n__proc_info_end = .;
\n__arch_info_begin = .;
\n*(.arch.info.init)
\n__arch_info_end = .;
\n__tagtable_begin = .;
\n*(.taglist.init)
\n__tagtable_end = .;
\n. = ALIGN(16);
\n__setup_start = .;
\n*(.init.setup)
\n__setup_end = .;
\n__early_begin = .;
\n*(.early_param.init)
\n__early_end = .;
\n__initcall_start = .;
\nINITCALLS
\n__initcall_end = .;
\n__con_initcall_start = .;
\n*(.con_initcall.init)
\n__con_initcall_end = .;
\n__security_initcall_start = .;
\n*(.security_initcall.init)
\n__security_initcall_end = .;
\n#ifdef CONFIG_BLK_DEV_INITRD
\n. = ALIGN(32);
\n__initramfs_start = .;
\nusr\/built-in.o(.init.ramfs)
\n__initramfs_end = .;
\n#endif
\n. = ALIGN(4096);
\n__per_cpu_start = .;
\n*(.data.percpu)
\n*(.data.percpu.shared_aligned)
\n__per_cpu_end = .;
\n#ifndef CONFIG_XIP_KERNEL
\n__init_begin = _stext;
\nINIT_DATA
\n. = ALIGN(4096);
\n__init_end = .;
\n#endif
\n}<\/p>\n

\/DISCARD\/ : {\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* Exit code and data\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/
\nEXIT_TEXT
\nEXIT_DATA
\n*(.exitcall.exit)
\n#ifndef CONFIG_MMU
\n*(.fixup)
\n*(__ex_table)
\n#endif
\n}<\/p>\n

.text : {\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* Real text segment\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/
\n_text = .;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* Text and read-only data\u00a0\u00a0\u00a0\u00a0 *\/
\n__exception_text_start = .;
\n*(.exception.text)
\n__exception_text_end = .;
\nTEXT_TEXT
\nSCHED_TEXT
\nLOCK_TEXT
\nKPROBES_TEXT
\n#ifdef CONFIG_MMU
\n*(.fixup)
\n#endif
\n*(.gnu.warning)
\n*(.rodata)
\n*(.rodata.*)
\n*(.glue_7)
\n*(.glue_7t)
\n*(.got)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* Global offset table\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/
\n}<\/p>\n

RODATA<\/p>\n

_etext = .;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* End of text and rodata section *\/<\/p>\n

#ifdef CONFIG_XIP_KERNEL
\n__data_loc = ALIGN(4);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* location in binary *\/
\n. = PAGE_OFFSET + TEXT_OFFSET;
\n#else
\n. = ALIGN(THREAD_SIZE);
\n__data_loc = .;
\n#endif<\/p>\n

.data : AT(__data_loc) {
\n__data_start = .;\u00a0\u00a0\u00a0\u00a0 \/* address in memory *\/<\/p>\n

\/*
\n* first, the init task union, aligned
\n* to an 8192 byte boundary.
\n*\/
\n*(.data.init_task)<\/p>\n

#ifdef CONFIG_XIP_KERNEL
\n. = ALIGN(4096);
\n__init_begin = .;
\nINIT_DATA
\n. = ALIGN(4096);
\n__init_end = .;
\n#endif<\/p>\n

. = ALIGN(4096);
\n__nosave_begin = .;
\n*(.data.nosave)
\n. = ALIGN(4096);
\n__nosave_end = .;<\/p>\n

\/*
\n* then the cacheline aligned data
\n*\/
\n. = ALIGN(32);
\n*(.data.cacheline_aligned)<\/p>\n

\/*
\n* The exception fixup table (might need resorting at runtime)
\n*\/
\n. = ALIGN(32);
\n__start___ex_table = .;
\n#ifdef CONFIG_MMU
\n*(__ex_table)
\n#endif
\n__stop___ex_table = .;<\/p>\n

\/*
\n* and the usual data section
\n*\/
\nDATA_DATA
\nCONSTRUCTORS<\/p>\n

_edata = .;
\n}
\n_edata_loc = __data_loc + SIZEOF(.data);<\/p>\n

.bss : {
\n__bss_start = .;\u00a0\u00a0\u00a0\u00a0 \/* BSS\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/
\n*(.bss)
\n*(COMMON)
\n_end = .;
\n}
\n\/* Stabs debugging sections.\u00a0\u00a0\u00a0\u00a0 *\/
\n.stab 0 : { *(.stab) }
\n.stabstr 0 : { *(.stabstr) }
\n.stab.excl 0 : { *(.stab.excl) }
\n.stab.exclstr 0 : { *(.stab.exclstr) }
\n.stab.index 0 : { *(.stab.index) }
\n.stab.indexstr 0 : { *(.stab.indexstr) }
\n.comment 0 : { *(.comment) }
\n}<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\u8981\u6ce8\u610f\u548c\u201c\/arch\/arm\/boot\/compressed\/vmlinux.lds\u201d\u7684\u533a\u522b\uff0c\u90a3\u4e2a\u662fboot\u65b9 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[9,260,243,244],"class_list":["post-339","post","type-post","status-publish","format-standard","hentry","category-linuxandroid","tag-linux","tag-vmlinux-lds","tag-243","tag-244"],"views":1807,"_links":{"self":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=339"}],"version-history":[{"count":1,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/339\/revisions"}],"predecessor-version":[{"id":340,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/339\/revisions\/340"}],"wp:attachment":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=339"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}