1/* 2 * ld script to make ARM Linux kernel 3 * taken from the i386 version by Russell King 4 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> 5 */ 6 7#include <asm-generic/vmlinux.lds.h> 8#include <asm/thread_info.h> 9#include <asm/memory.h> 10#include <asm/page.h> 11 12#include "image.h" 13 14#define ARM_EXIT_KEEP(x) 15#define ARM_EXIT_DISCARD(x) x 16 17OUTPUT_ARCH(aarch64) 18ENTRY(_text) 19 20jiffies = jiffies_64; 21 22#define HYPERVISOR_TEXT \ 23 /* \ 24 * Force the alignment to be compatible with \ 25 * the vectors requirements \ 26 */ \ 27 . = ALIGN(2048); \ 28 VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \ 29 *(.hyp.idmap.text) \ 30 VMLINUX_SYMBOL(__hyp_idmap_text_end) = .; \ 31 VMLINUX_SYMBOL(__hyp_text_start) = .; \ 32 *(.hyp.text) \ 33 VMLINUX_SYMBOL(__hyp_text_end) = .; 34 35SECTIONS 36{ 37 /* 38 * XXX: The linker does not define how output sections are 39 * assigned to input sections when there are multiple statements 40 * matching the same input section name. There is no documented 41 * order of matching. 42 */ 43 /DISCARD/ : { 44 ARM_EXIT_DISCARD(EXIT_TEXT) 45 ARM_EXIT_DISCARD(EXIT_DATA) 46 EXIT_CALL 47 *(.discard) 48 *(.discard.*) 49 } 50 51 . = PAGE_OFFSET + TEXT_OFFSET; 52 53 .head.text : { 54 _text = .; 55 HEAD_TEXT 56 } 57 .text : { /* Real text segment */ 58 _stext = .; /* Text and read-only data */ 59 __exception_text_start = .; 60 *(.exception.text) 61 __exception_text_end = .; 62 IRQENTRY_TEXT 63 TEXT_TEXT 64 SCHED_TEXT 65 LOCK_TEXT 66 HYPERVISOR_TEXT 67 *(.fixup) 68 *(.gnu.warning) 69 . = ALIGN(16); 70 *(.got) /* Global offset table */ 71 } 72 73 RO_DATA(PAGE_SIZE) 74 EXCEPTION_TABLE(8) 75 NOTES 76 _etext = .; /* End of text and rodata section */ 77 78 . = ALIGN(PAGE_SIZE); 79 __init_begin = .; 80 81 INIT_TEXT_SECTION(8) 82 .exit.text : { 83 ARM_EXIT_KEEP(EXIT_TEXT) 84 } 85 . = ALIGN(16); 86 .init.data : { 87 INIT_DATA 88 INIT_SETUP(16) 89 INIT_CALLS 90 CON_INITCALL 91 SECURITY_INITCALL 92 INIT_RAM_FS 93 } 94 .exit.data : { 95 ARM_EXIT_KEEP(EXIT_DATA) 96 } 97 98 PERCPU_SECTION(64) 99 100 __init_end = .; 101 102 . = ALIGN(PAGE_SIZE); 103 _data = .; 104 _sdata = .; 105 RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE) 106 _edata = .; 107 108 BSS_SECTION(0, 0, 0) 109 110 . = ALIGN(PAGE_SIZE); 111 idmap_pg_dir = .; 112 . += IDMAP_DIR_SIZE; 113 swapper_pg_dir = .; 114 . += SWAPPER_DIR_SIZE; 115 116 _end = .; 117 118 STABS_DEBUG 119 120 HEAD_SYMBOLS 121} 122 123/* 124 * The HYP init code can't be more than a page long. 125 */ 126ASSERT(((__hyp_idmap_text_start + PAGE_SIZE) > __hyp_idmap_text_end), 127 "HYP init code too big") 128 129/* 130 * If padding is applied before .head.text, virt<->phys conversions will fail. 131 */ 132ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned") 133