| 1 | /* SPDX-License-Identifier: GPL-2.0 */
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| 2 | /* ld script to make ARM Linux kernel
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| 3 | * taken from the i386 version by Russell King
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| 4 | * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
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| 5 | */
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| 6 |
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| 7 | |
| 8 | |
| 9 | |
| 10 |
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| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 |
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| 18 | OUTPUT_ARCH(arm)
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| 19 | ENTRY(stext)
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| 20 |
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| 21 | |
| 22 | jiffies = jiffies_64;
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| 23 | |
| 24 | jiffies = jiffies_64 + 4;
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| 25 | |
| 26 |
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| 27 | SECTIONS
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| 28 | {
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| 29 | /*
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| 30 | * XXX: The linker does not define how output sections are
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| 31 | * assigned to input sections when there are multiple statements
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| 32 | * matching the same input section name. There is no documented
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| 33 | * order of matching.
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| 34 | *
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| 35 | * unwind exit sections must be discarded before the rest of the
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| 36 | * unwind sections get included.
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| 37 | */
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| 38 | /DISCARD/ : {
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| 39 | ARM_DISCARD
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| 40 | |
| 41 | *(.alt.smp.init)
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| 42 | |
| 43 | |
| 44 | *(.ARM.exidx) *(.ARM.exidx.*)
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| 45 | *(.ARM.extab) *(.ARM.extab.*)
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| 46 | |
| 47 | }
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| 48 |
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| 49 | . = KERNEL_OFFSET + TEXT_OFFSET;
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| 50 | .head.text : {
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| 51 | _text = .;
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| 52 | HEAD_TEXT
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| 53 | }
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| 54 |
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| 55 | |
| 56 | . = ALIGN(1<<SECTION_SHIFT);
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| 57 | |
| 58 |
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| 59 | |
| 60 | . = ALIGN(PMSAv8_MINALIGN);
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| 61 | |
| 62 | .text : { /* Real text segment */
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| 63 | _stext = .; /* Text and read-only data */
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| 64 | ARM_TEXT
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| 65 | }
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| 66 |
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| 67 | |
| 68 | . = ALIGN(1<<SECTION_SHIFT);
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| 69 | |
| 70 | _etext = .; /* End of text section */
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| 71 |
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| 72 | RO_DATA(PAGE_SIZE)
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| 73 |
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| 74 | . = ALIGN(4);
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| 75 | __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
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| 76 | __start___ex_table = .;
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| 77 | ARM_MMU_KEEP(*(__ex_table))
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| 78 | __stop___ex_table = .;
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| 79 | }
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| 80 |
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| 81 | |
| 82 | ARM_UNWIND_SECTIONS
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| 83 | |
| 84 |
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| 85 | |
| 86 | . = ALIGN(1<<SECTION_SHIFT);
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| 87 | |
| 88 | . = ALIGN(PAGE_SIZE);
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| 89 | |
| 90 | __init_begin = .;
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| 91 |
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| 92 | ARM_VECTORS
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| 93 | INIT_TEXT_SECTION(8)
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| 94 | .exit.text : {
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| 95 | ARM_EXIT_KEEP(EXIT_TEXT)
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| 96 | }
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| 97 | .init.proc.info : {
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| 98 | ARM_CPU_DISCARD(PROC_INFO)
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| 99 | }
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| 100 | .init.arch.info : {
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| 101 | __arch_info_begin = .;
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| 102 | KEEP(*(.arch.info.init))
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| 103 | __arch_info_end = .;
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| 104 | }
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| 105 | .init.tagtable : {
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| 106 | __tagtable_begin = .;
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| 107 | *(.taglist.init)
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| 108 | __tagtable_end = .;
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| 109 | }
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| 110 | |
| 111 | .init.smpalt : {
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| 112 | __smpalt_begin = .;
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| 113 | *(.alt.smp.init)
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| 114 | __smpalt_end = .;
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| 115 | }
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| 116 | |
| 117 | .init.pv_table : {
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| 118 | __pv_table_begin = .;
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| 119 | KEEP(*(.pv_table))
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| 120 | __pv_table_end = .;
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| 121 | }
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| 122 |
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| 123 | INIT_DATA_SECTION(16)
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| 124 |
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| 125 | .exit.data : {
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| 126 | ARM_EXIT_KEEP(EXIT_DATA)
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| 127 | }
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| 128 |
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| 129 | |
| 130 | PERCPU_SECTION(L1_CACHE_BYTES)
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| 131 | |
| 132 |
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| 133 | |
| 134 | ARM_TCM
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| 135 | |
| 136 |
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| 137 | |
| 138 | . = ALIGN(1<<SECTION_SHIFT);
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| 139 | |
| 140 | . = ALIGN(THREAD_ALIGN);
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| 141 | |
| 142 | __init_end = .;
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| 143 |
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| 144 | _sdata = .;
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| 145 | RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
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| 146 | _edata = .;
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| 147 |
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| 148 | BSS_SECTION(0, 0, 0)
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| 149 | |
| 150 | . = ALIGN(PMSAv8_MINALIGN);
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| 151 | |
| 152 | _end = .;
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| 153 |
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| 154 | STABS_DEBUG
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| 155 | DWARF_DEBUG
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| 156 | MODINFO
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| 157 | ARM_DETAILS
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| 158 |
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| 159 | ARM_ASSERTS
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| 160 | }
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| 161 |
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| 162 | |
| 163 | /*
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| 164 | * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
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| 165 | * be the first section-aligned location after __start_rodata. Otherwise,
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| 166 | * it will be equal to __start_rodata.
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| 167 | */
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| 168 | __start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT);
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| 169 | |
| 170 |
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| 171 | /*
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| 172 | * These must never be empty
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| 173 | * If you have to comment these two assert statements out, your
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| 174 | * binutils is too old (for other reasons as well)
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| 175 | */
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| 176 | ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
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| 177 | |
| 178 | ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
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| 179 | |
| 180 |
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| 181 | |