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