| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Copyright (C) 2012 Regents of the University of California |
| 4 | * Copyright (C) 2017 SiFive |
| 5 | * Copyright (C) 2020 Vitaly Wool, Konsulko AB |
| 6 | */ |
| 7 | |
| 8 | #include <asm/pgtable.h> |
| 9 | #define LOAD_OFFSET KERNEL_LINK_ADDR |
| 10 | /* No __ro_after_init data in the .rodata section - which will always be ro */ |
| 11 | #define RO_AFTER_INIT_DATA |
| 12 | |
| 13 | #include <asm/vmlinux.lds.h> |
| 14 | #include <asm/page.h> |
| 15 | #include <asm/cache.h> |
| 16 | #include <asm/thread_info.h> |
| 17 | #include <asm/set_memory.h> |
| 18 | |
| 19 | OUTPUT_ARCH(riscv) |
| 20 | ENTRY(_start) |
| 21 | |
| 22 | jiffies = jiffies_64; |
| 23 | |
| 24 | SECTIONS |
| 25 | { |
| 26 | /* Beginning of code and text segment */ |
| 27 | . = LOAD_OFFSET; |
| 28 | _xiprom = .; |
| 29 | _start = .; |
| 30 | HEAD_TEXT_SECTION |
| 31 | INIT_TEXT_SECTION(PAGE_SIZE) |
| 32 | /* we have to discard exit text and such at runtime, not link time */ |
| 33 | __exittext_begin = .; |
| 34 | .exit.text : |
| 35 | { |
| 36 | EXIT_TEXT |
| 37 | } |
| 38 | __exittext_end = .; |
| 39 | |
| 40 | .text : { |
| 41 | _text = .; |
| 42 | _stext = .; |
| 43 | TEXT_TEXT |
| 44 | SCHED_TEXT |
| 45 | LOCK_TEXT |
| 46 | KPROBES_TEXT |
| 47 | ENTRY_TEXT |
| 48 | IRQENTRY_TEXT |
| 49 | SOFTIRQENTRY_TEXT |
| 50 | _etext = .; |
| 51 | } |
| 52 | RO_DATA(L1_CACHE_BYTES) |
| 53 | .srodata : { |
| 54 | *(.srodata*) |
| 55 | } |
| 56 | .init.rodata : { |
| 57 | INIT_SETUP(16) |
| 58 | INIT_CALLS |
| 59 | CON_INITCALL |
| 60 | INIT_RAM_FS |
| 61 | } |
| 62 | _exiprom = .; /* End of XIP ROM area */ |
| 63 | |
| 64 | |
| 65 | /* |
| 66 | * From this point, stuff is considered writable and will be copied to RAM |
| 67 | */ |
| 68 | __data_loc = ALIGN(PAGE_SIZE); /* location in file */ |
| 69 | . = ALIGN(SECTION_ALIGN); /* location in memory */ |
| 70 | |
| 71 | #undef LOAD_OFFSET |
| 72 | #define LOAD_OFFSET (KERNEL_LINK_ADDR + _sdata - __data_loc) |
| 73 | |
| 74 | _sdata = .; /* Start of data section */ |
| 75 | _data = .; |
| 76 | RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) |
| 77 | _edata = .; |
| 78 | __start_ro_after_init = .; |
| 79 | .data.ro_after_init : AT(ADDR(.data.ro_after_init) - LOAD_OFFSET) { |
| 80 | *(.data..ro_after_init) |
| 81 | } |
| 82 | __end_ro_after_init = .; |
| 83 | |
| 84 | . = ALIGN(PAGE_SIZE); |
| 85 | __init_begin = .; |
| 86 | .init.data : { |
| 87 | INIT_DATA |
| 88 | } |
| 89 | .exit.data : { |
| 90 | EXIT_DATA |
| 91 | } |
| 92 | . = ALIGN(8); |
| 93 | __soc_early_init_table : { |
| 94 | __soc_early_init_table_start = .; |
| 95 | KEEP(*(__soc_early_init_table)) |
| 96 | __soc_early_init_table_end = .; |
| 97 | } |
| 98 | __soc_builtin_dtb_table : { |
| 99 | __soc_builtin_dtb_table_start = .; |
| 100 | KEEP(*(__soc_builtin_dtb_table)) |
| 101 | __soc_builtin_dtb_table_end = .; |
| 102 | } |
| 103 | |
| 104 | __init_end = .; |
| 105 | |
| 106 | . = ALIGN(16); |
| 107 | .xip.traps : { |
| 108 | __xip_traps_start = .; |
| 109 | *(.xip.traps) |
| 110 | __xip_traps_end = .; |
| 111 | } |
| 112 | |
| 113 | . = ALIGN(PAGE_SIZE); |
| 114 | .sdata : { |
| 115 | __global_pointer$ = . + 0x800; |
| 116 | *(.sdata*) |
| 117 | *(.sbss*) |
| 118 | } |
| 119 | |
| 120 | BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0) |
| 121 | |
| 122 | PERCPU_SECTION(L1_CACHE_BYTES) |
| 123 | |
| 124 | .rel.dyn : AT(ADDR(.rel.dyn) - LOAD_OFFSET) { |
| 125 | *(.rel.dyn*) |
| 126 | } |
| 127 | |
| 128 | /* |
| 129 | * End of copied data. We need a dummy section to get its LMA. |
| 130 | * Also located before final ALIGN() as trailing padding is not stored |
| 131 | * in the resulting binary file and useless to copy. |
| 132 | */ |
| 133 | .data.endmark : AT(ADDR(.data.endmark) - LOAD_OFFSET) { } |
| 134 | _edata_loc = LOADADDR(.data.endmark); |
| 135 | |
| 136 | . = ALIGN(PAGE_SIZE); |
| 137 | _end = .; |
| 138 | |
| 139 | STABS_DEBUG |
| 140 | DWARF_DEBUG |
| 141 | |
| 142 | DISCARDS |
| 143 | } |
| 144 | |