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 10OUTPUT_ARCH(arm) 11ENTRY(stext) 12 13#ifndef __ARMEB__ 14jiffies = jiffies_64; 15#else 16jiffies = jiffies_64 + 4; 17#endif 18 19SECTIONS 20{ 21#ifdef CONFIG_XIP_KERNEL 22 . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR); 23#else 24 . = PAGE_OFFSET + TEXT_OFFSET; 25#endif 26 .text.head : { 27 _stext = .; 28 _sinittext = .; 29 *(.text.head) 30 } 31 32 .init : { /* Init code and data */ 33 INIT_TEXT 34 _einittext = .; 35 __proc_info_begin = .; 36 *(.proc.info.init) 37 __proc_info_end = .; 38 __arch_info_begin = .; 39 *(.arch.info.init) 40 __arch_info_end = .; 41 __tagtable_begin = .; 42 *(.taglist.init) 43 __tagtable_end = .; 44 . = ALIGN(16); 45 __setup_start = .; 46 *(.init.setup) 47 __setup_end = .; 48 __early_begin = .; 49 *(.early_param.init) 50 __early_end = .; 51 __initcall_start = .; 52 INITCALLS 53 __initcall_end = .; 54 __con_initcall_start = .; 55 *(.con_initcall.init) 56 __con_initcall_end = .; 57 __security_initcall_start = .; 58 *(.security_initcall.init) 59 __security_initcall_end = .; 60#ifdef CONFIG_BLK_DEV_INITRD 61 . = ALIGN(32); 62 __initramfs_start = .; 63 usr/built-in.o(.init.ramfs) 64 __initramfs_end = .; 65#endif 66 . = ALIGN(4096); 67 __per_cpu_load = .; 68 __per_cpu_start = .; 69 *(.data.percpu.page_aligned) 70 *(.data.percpu) 71 *(.data.percpu.shared_aligned) 72 __per_cpu_end = .; 73#ifndef CONFIG_XIP_KERNEL 74 __init_begin = _stext; 75 INIT_DATA 76 . = ALIGN(4096); 77 __init_end = .; 78#endif 79 } 80 81 /DISCARD/ : { /* Exit code and data */ 82 EXIT_TEXT 83 EXIT_DATA 84 *(.exitcall.exit) 85 *(.ARM.exidx.exit.text) 86 *(.ARM.extab.exit.text) 87#ifndef CONFIG_MMU 88 *(.fixup) 89 *(__ex_table) 90#endif 91 } 92 93 .text : { /* Real text segment */ 94 _text = .; /* Text and read-only data */ 95 __exception_text_start = .; 96 *(.exception.text) 97 __exception_text_end = .; 98 TEXT_TEXT 99 SCHED_TEXT 100 LOCK_TEXT 101 KPROBES_TEXT 102#ifdef CONFIG_MMU 103 *(.fixup) 104#endif 105 *(.gnu.warning) 106 *(.rodata) 107 *(.rodata.*) 108 *(.glue_7) 109 *(.glue_7t) 110 *(.got) /* Global offset table */ 111 } 112 113 RODATA 114 115 _etext = .; /* End of text and rodata section */ 116 117#ifdef CONFIG_ARM_UNWIND 118 /* 119 * Stack unwinding tables 120 */ 121 . = ALIGN(8); 122 .ARM.unwind_idx : { 123 __start_unwind_idx = .; 124 *(.ARM.exidx*) 125 __stop_unwind_idx = .; 126 } 127 .ARM.unwind_tab : { 128 __start_unwind_tab = .; 129 *(.ARM.extab*) 130 __stop_unwind_tab = .; 131 } 132#endif 133 134#ifdef CONFIG_XIP_KERNEL 135 __data_loc = ALIGN(4); /* location in binary */ 136 . = PAGE_OFFSET + TEXT_OFFSET; 137#else 138 . = ALIGN(THREAD_SIZE); 139 __data_loc = .; 140#endif 141 142 .data : AT(__data_loc) { 143 _data = .; /* address in memory */ 144 _sdata = .; 145 146 /* 147 * first, the init task union, aligned 148 * to an 8192 byte boundary. 149 */ 150 *(.data.init_task) 151 152#ifdef CONFIG_XIP_KERNEL 153 . = ALIGN(4096); 154 __init_begin = .; 155 INIT_DATA 156 . = ALIGN(4096); 157 __init_end = .; 158#endif 159 160 . = ALIGN(4096); 161 __nosave_begin = .; 162 *(.data.nosave) 163 . = ALIGN(4096); 164 __nosave_end = .; 165 166 /* 167 * then the cacheline aligned data 168 */ 169 . = ALIGN(32); 170 *(.data.cacheline_aligned) 171 172 /* 173 * The exception fixup table (might need resorting at runtime) 174 */ 175 . = ALIGN(32); 176 __start___ex_table = .; 177#ifdef CONFIG_MMU 178 *(__ex_table) 179#endif 180 __stop___ex_table = .; 181 182 /* 183 * and the usual data section 184 */ 185 DATA_DATA 186 CONSTRUCTORS 187 188 _edata = .; 189 } 190 _edata_loc = __data_loc + SIZEOF(.data); 191 192 .bss : { 193 __bss_start = .; /* BSS */ 194 *(.bss) 195 *(COMMON) 196 __bss_stop = .; 197 _end = .; 198 } 199 /* Stabs debugging sections. */ 200 .stab 0 : { *(.stab) } 201 .stabstr 0 : { *(.stabstr) } 202 .stab.excl 0 : { *(.stab.excl) } 203 .stab.exclstr 0 : { *(.stab.exclstr) } 204 .stab.index 0 : { *(.stab.index) } 205 .stab.indexstr 0 : { *(.stab.indexstr) } 206 .comment 0 : { *(.comment) } 207} 208 209/* 210 * These must never be empty 211 * If you have to comment these two assert statements out, your 212 * binutils is too old (for other reasons as well) 213 */ 214ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support") 215ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined") 216