1/* ld script to make ARM Linux kernel 2 * taken from the i386 version by Russell King 3 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> 4 */ 5 6#include <asm-generic/vmlinux.lds.h> 7#include <asm/thread_info.h> 8#include <asm/memory.h> 9#include <asm/page.h> 10 11OUTPUT_ARCH(arm) 12ENTRY(stext) 13 14#ifndef __ARMEB__ 15jiffies = jiffies_64; 16#else 17jiffies = jiffies_64 + 4; 18#endif 19 20SECTIONS 21{ 22#ifdef CONFIG_XIP_KERNEL 23 . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR); 24#else 25 . = PAGE_OFFSET + TEXT_OFFSET; 26#endif 27 .text.head : { 28 _stext = .; 29 _sinittext = .; 30 *(.text.head) 31 } 32 33 .init : { /* Init code and data */ 34 INIT_TEXT 35 _einittext = .; 36 __proc_info_begin = .; 37 *(.proc.info.init) 38 __proc_info_end = .; 39 __arch_info_begin = .; 40 *(.arch.info.init) 41 __arch_info_end = .; 42 __tagtable_begin = .; 43 *(.taglist.init) 44 __tagtable_end = .; 45 . = ALIGN(16); 46 __setup_start = .; 47 *(.init.setup) 48 __setup_end = .; 49 __early_begin = .; 50 *(.early_param.init) 51 __early_end = .; 52 __initcall_start = .; 53 INITCALLS 54 __initcall_end = .; 55 __con_initcall_start = .; 56 *(.con_initcall.init) 57 __con_initcall_end = .; 58 __security_initcall_start = .; 59 *(.security_initcall.init) 60 __security_initcall_end = .; 61#ifdef CONFIG_BLK_DEV_INITRD 62 . = ALIGN(32); 63 __initramfs_start = .; 64 usr/built-in.o(.init.ramfs) 65 __initramfs_end = .; 66#endif 67 . = ALIGN(PAGE_SIZE); 68 __per_cpu_load = .; 69 __per_cpu_start = .; 70 *(.data.percpu.page_aligned) 71 *(.data.percpu) 72 *(.data.percpu.shared_aligned) 73 __per_cpu_end = .; 74#ifndef CONFIG_XIP_KERNEL 75 __init_begin = _stext; 76 INIT_DATA 77 . = ALIGN(PAGE_SIZE); 78 __init_end = .; 79#endif 80 } 81 82 /DISCARD/ : { /* Exit code and data */ 83 EXIT_TEXT 84 EXIT_DATA 85 *(.exitcall.exit) 86 *(.ARM.exidx.exit.text) 87 *(.ARM.extab.exit.text) 88#ifndef CONFIG_HOTPLUG_CPU 89 *(.ARM.exidx.cpuexit.text) 90 *(.ARM.extab.cpuexit.text) 91#endif 92#ifndef CONFIG_HOTPLUG 93 *(.ARM.exidx.devexit.text) 94 *(.ARM.extab.devexit.text) 95#endif 96#ifndef CONFIG_MMU 97 *(.fixup) 98 *(__ex_table) 99#endif 100 } 101 102 .text : { /* Real text segment */ 103 _text = .; /* Text and read-only data */ 104 __exception_text_start = .; 105 *(.exception.text) 106 __exception_text_end = .; 107 TEXT_TEXT 108 SCHED_TEXT 109 LOCK_TEXT 110 KPROBES_TEXT 111#ifdef CONFIG_MMU 112 *(.fixup) 113#endif 114 *(.gnu.warning) 115 *(.rodata) 116 *(.rodata.*) 117 *(.glue_7) 118 *(.glue_7t) 119 *(.got) /* Global offset table */ 120 } 121 122 RO_DATA(PAGE_SIZE) 123 124 _etext = .; /* End of text and rodata section */ 125 126#ifdef CONFIG_ARM_UNWIND 127 /* 128 * Stack unwinding tables 129 */ 130 . = ALIGN(8); 131 .ARM.unwind_idx : { 132 __start_unwind_idx = .; 133 *(.ARM.exidx*) 134 __stop_unwind_idx = .; 135 } 136 .ARM.unwind_tab : { 137 __start_unwind_tab = .; 138 *(.ARM.extab*) 139 __stop_unwind_tab = .; 140 } 141#endif 142 143#ifdef CONFIG_XIP_KERNEL 144 __data_loc = ALIGN(4); /* location in binary */ 145 . = PAGE_OFFSET + TEXT_OFFSET; 146#else 147 . = ALIGN(THREAD_SIZE); 148 __data_loc = .; 149#endif 150 151 .data : AT(__data_loc) { 152 _data = .; /* address in memory */ 153 _sdata = .; 154 155 /* 156 * first, the init task union, aligned 157 * to an 8192 byte boundary. 158 */ 159 *(.data.init_task) 160 161#ifdef CONFIG_XIP_KERNEL 162 . = ALIGN(PAGE_SIZE); 163 __init_begin = .; 164 INIT_DATA 165 . = ALIGN(PAGE_SIZE); 166 __init_end = .; 167#endif 168 169 . = ALIGN(PAGE_SIZE); 170 __nosave_begin = .; 171 *(.data.nosave) 172 . = ALIGN(PAGE_SIZE); 173 __nosave_end = .; 174 175 /* 176 * then the cacheline aligned data 177 */ 178 . = ALIGN(32); 179 *(.data.cacheline_aligned) 180 181 /* 182 * The exception fixup table (might need resorting at runtime) 183 */ 184 . = ALIGN(32); 185 __start___ex_table = .; 186#ifdef CONFIG_MMU 187 *(__ex_table) 188#endif 189 __stop___ex_table = .; 190 191 /* 192 * and the usual data section 193 */ 194 DATA_DATA 195 CONSTRUCTORS 196 197 _edata = .; 198 } 199 _edata_loc = __data_loc + SIZEOF(.data); 200 201 .bss : { 202 __bss_start = .; /* BSS */ 203 *(.bss) 204 *(COMMON) 205 __bss_stop = .; 206 _end = .; 207 } 208 /* Stabs debugging sections. */ 209 .stab 0 : { *(.stab) } 210 .stabstr 0 : { *(.stabstr) } 211 .stab.excl 0 : { *(.stab.excl) } 212 .stab.exclstr 0 : { *(.stab.exclstr) } 213 .stab.index 0 : { *(.stab.index) } 214 .stab.indexstr 0 : { *(.stab.indexstr) } 215 .comment 0 : { *(.comment) } 216} 217 218/* 219 * These must never be empty 220 * If you have to comment these two assert statements out, your 221 * binutils is too old (for other reasons as well) 222 */ 223ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support") 224ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined") 225