1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2000 Russell King 4 */ 5#include <asm/vmlinux.lds.h> 6 7#ifdef CONFIG_CPU_ENDIAN_BE8 8#define ZIMAGE_MAGIC(x) ( (((x) >> 24) & 0x000000ff) | \ 9 (((x) >> 8) & 0x0000ff00) | \ 10 (((x) << 8) & 0x00ff0000) | \ 11 (((x) << 24) & 0xff000000) ) 12#else 13#define ZIMAGE_MAGIC(x) (x) 14#endif 15 16OUTPUT_ARCH(arm) 17ENTRY(_start) 18SECTIONS 19{ 20 /DISCARD/ : { 21 COMMON_DISCARDS 22 *(.ARM.exidx*) 23 *(.ARM.extab*) 24 *(.note.*) 25 *(.rel.*) 26 *(.printk_index) 27 /* 28 * Discard any r/w data - this produces a link error if we have any, 29 * which is required for PIC decompression. Local data generates 30 * GOTOFF relocations, which prevents it being relocated independently 31 * of the text/got segments. 32 */ 33 *(.data) 34 } 35 36 . = TEXT_START; 37 _text = .; 38 39 .text : { 40 _start = .; 41 *(.start) 42 *(.text) 43 *(.text.*) 44 ARM_STUBS_TEXT 45 } 46 .table : ALIGN(4) { 47 _table_start = .; 48 LONG(ZIMAGE_MAGIC(6)) 49 LONG(ZIMAGE_MAGIC(0x5a534c4b)) 50 LONG(ZIMAGE_MAGIC(__piggy_size_addr - _start)) 51 LONG(ZIMAGE_MAGIC(_kernel_bss_size)) 52 LONG(ZIMAGE_MAGIC(TEXT_OFFSET)) 53 LONG(ZIMAGE_MAGIC(MALLOC_SIZE)) 54 LONG(0) 55 _table_end = .; 56 } 57 .rodata : { 58 *(.rodata) 59 *(.rodata.*) 60 *(.data.rel.ro) 61 *(.data.rel.ro.*) 62 } 63 .piggydata : { 64 *(.piggydata) 65 __piggy_size_addr = . - 4; 66 } 67 68 . = ALIGN(4); 69 _etext = .; 70 71 .got.plt : { *(.got.plt) } 72#ifndef CONFIG_EFI_STUB 73 _got_start = .; 74 .got : { *(.got) } 75 _got_end = .; 76#endif 77 78 /* ensure the zImage file size is always a multiple of 64 bits */ 79 /* (without a dummy byte, ld just ignores the empty section) */ 80 .pad : { BYTE(0); . = ALIGN(8); } 81 82#ifdef CONFIG_EFI_STUB 83 .data : ALIGN(4096) { 84 __pecoff_data_start = .; 85 _got_start = .; 86 *(.got) 87 _got_end = .; 88 /* 89 * The EFI stub always executes from RAM, and runs strictly before the 90 * decompressor, so we can make an exception for its r/w data, and keep it 91 */ 92 *(.data.efistub .bss.efistub) 93 __pecoff_data_end = .; 94 95 /* 96 * PE/COFF mandates a file size which is a multiple of 512 bytes if the 97 * section size equals or exceeds 4 KB 98 */ 99 . = ALIGN(512); 100 } 101 __pecoff_data_rawsize = . - ADDR(.data); 102#endif 103 104 _edata = .; 105 106 /* 107 * The image_end section appears after any additional loadable sections 108 * that the linker may decide to insert in the binary image. Having 109 * this symbol allows further debug in the near future. 110 */ 111 .image_end (NOLOAD) : { 112 /* 113 * EFI requires that the image is aligned to 512 bytes, and appended 114 * DTB requires that we know where the end of the image is. Ensure 115 * that both are satisfied by ensuring that there are no additional 116 * sections emitted into the decompressor image. 117 */ 118 _edata_real = .; 119 } 120 121 _magic_sig = ZIMAGE_MAGIC(0x016f2818); 122 _magic_start = ZIMAGE_MAGIC(_start); 123 _magic_end = ZIMAGE_MAGIC(_edata); 124 _magic_table = ZIMAGE_MAGIC(_table_start - _start); 125 126 . = BSS_START; 127 __bss_start = .; 128 .bss : { *(.bss .bss.*) } 129 _end = .; 130 131 . = ALIGN(8); /* the stack must be 64-bit aligned */ 132 .stack : { *(.stack) } 133 134 PROVIDE(__pecoff_data_size = ALIGN(512) - ADDR(.data)); 135 PROVIDE(__pecoff_end = ALIGN(512)); 136 137 STABS_DEBUG 138 DWARF_DEBUG 139 ARM_DETAILS 140 141 ARM_ASSERTS 142} 143ASSERT(_edata_real == _edata, "error: zImage file size is incorrect"); 144