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 *(.discard) 87 *(.ARM.exidx.exit.text) 88 *(.ARM.extab.exit.text) 89#ifndef CONFIG_HOTPLUG_CPU 90 *(.ARM.exidx.cpuexit.text) 91 *(.ARM.extab.cpuexit.text) 92#endif 93#ifndef CONFIG_HOTPLUG 94 *(.ARM.exidx.devexit.text) 95 *(.ARM.extab.devexit.text) 96#endif 97#ifndef CONFIG_MMU 98 *(.fixup) 99 *(__ex_table) 100#endif 101 } 102 103 .text : { /* Real text segment */ 104 _text = .; /* Text and read-only data */ 105 __exception_text_start = .; 106 *(.exception.text) 107 __exception_text_end = .; 108 TEXT_TEXT 109 SCHED_TEXT 110 LOCK_TEXT 111 KPROBES_TEXT 112#ifdef CONFIG_MMU 113 *(.fixup) 114#endif 115 *(.gnu.warning) 116 *(.rodata) 117 *(.rodata.*) 118 *(.glue_7) 119 *(.glue_7t) 120 *(.got) /* Global offset table */ 121 } 122 123 RO_DATA(PAGE_SIZE) 124 125 _etext = .; /* End of text and rodata section */ 126 127#ifdef CONFIG_ARM_UNWIND 128 /* 129 * Stack unwinding tables 130 */ 131 . = ALIGN(8); 132 .ARM.unwind_idx : { 133 __start_unwind_idx = .; 134 *(.ARM.exidx*) 135 __stop_unwind_idx = .; 136 } 137 .ARM.unwind_tab : { 138 __start_unwind_tab = .; 139 *(.ARM.extab*) 140 __stop_unwind_tab = .; 141 } 142#endif 143 144#ifdef CONFIG_XIP_KERNEL 145 __data_loc = ALIGN(4); /* location in binary */ 146 . = PAGE_OFFSET + TEXT_OFFSET; 147#else 148 . = ALIGN(THREAD_SIZE); 149 __data_loc = .; 150#endif 151 152 .data : AT(__data_loc) { 153 _data = .; /* address in memory */ 154 _sdata = .; 155 156 /* 157 * first, the init task union, aligned 158 * to an 8192 byte boundary. 159 */ 160 *(.data.init_task) 161 162#ifdef CONFIG_XIP_KERNEL 163 . = ALIGN(PAGE_SIZE); 164 __init_begin = .; 165 INIT_DATA 166 . = ALIGN(PAGE_SIZE); 167 __init_end = .; 168#endif 169 170 . = ALIGN(PAGE_SIZE); 171 __nosave_begin = .; 172 *(.data.nosave) 173 . = ALIGN(PAGE_SIZE); 174 __nosave_end = .; 175 176 /* 177 * then the cacheline aligned data 178 */ 179 . = ALIGN(32); 180 *(.data.cacheline_aligned) 181 182 /* 183 * The exception fixup table (might need resorting at runtime) 184 */ 185 . = ALIGN(32); 186 __start___ex_table = .; 187#ifdef CONFIG_MMU 188 *(__ex_table) 189#endif 190 __stop___ex_table = .; 191 192 /* 193 * and the usual data section 194 */ 195 DATA_DATA 196 CONSTRUCTORS 197 198 _edata = .; 199 } 200 _edata_loc = __data_loc + SIZEOF(.data); 201 202 .bss : { 203 __bss_start = .; /* BSS */ 204 *(.bss) 205 *(COMMON) 206 __bss_stop = .; 207 _end = .; 208 } 209 /* Stabs debugging sections. */ 210 .stab 0 : { *(.stab) } 211 .stabstr 0 : { *(.stabstr) } 212 .stab.excl 0 : { *(.stab.excl) } 213 .stab.exclstr 0 : { *(.stab.exclstr) } 214 .stab.index 0 : { *(.stab.index) } 215 .stab.indexstr 0 : { *(.stab.indexstr) } 216 .comment 0 : { *(.comment) } 217} 218 219/* 220 * These must never be empty 221 * If you have to comment these two assert statements out, your 222 * binutils is too old (for other reasons as well) 223 */ 224ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support") 225ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined") 226