| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * OpenRISC vmlinux.lds.S |
| 4 | * |
| 5 | * Linux architectural port borrowing liberally from similar works of |
| 6 | * others. All original copyrights apply as per the original source |
| 7 | * declaration. |
| 8 | * |
| 9 | * Modifications for the OpenRISC architecture: |
| 10 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> |
| 11 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 12 | * |
| 13 | * ld script for OpenRISC architecture |
| 14 | */ |
| 15 | |
| 16 | /* TODO |
| 17 | * - clean up __offset & stuff |
| 18 | * - change all 8192 alignment to PAGE !!! |
| 19 | * - recheck if all alignments are really needed |
| 20 | */ |
| 21 | |
| 22 | # define LOAD_OFFSET PAGE_OFFSET |
| 23 | # define LOAD_BASE PAGE_OFFSET |
| 24 | |
| 25 | #include <asm/page.h> |
| 26 | #include <asm/cache.h> |
| 27 | #include <asm/thread_info.h> |
| 28 | #include <asm-generic/vmlinux.lds.h> |
| 29 | |
| 30 | #ifdef __OR1K__ |
| 31 | #define __OUTPUT_FORMAT "elf32-or1k" |
| 32 | #else |
| 33 | #define __OUTPUT_FORMAT "elf32-or32" |
| 34 | #endif |
| 35 | |
| 36 | OUTPUT_FORMAT(__OUTPUT_FORMAT, __OUTPUT_FORMAT, __OUTPUT_FORMAT) |
| 37 | jiffies = jiffies_64 + 4; |
| 38 | |
| 39 | SECTIONS |
| 40 | { |
| 41 | /* Read-only sections, merged into text segment: */ |
| 42 | . = LOAD_BASE ; |
| 43 | |
| 44 | _text = .; |
| 45 | |
| 46 | /* _s_kernel_ro must be page aligned */ |
| 47 | . = ALIGN(PAGE_SIZE); |
| 48 | _s_kernel_ro = .; |
| 49 | |
| 50 | .text : AT(ADDR(.text) - LOAD_OFFSET) |
| 51 | { |
| 52 | _stext = .; |
| 53 | TEXT_TEXT |
| 54 | SCHED_TEXT |
| 55 | CPUIDLE_TEXT |
| 56 | LOCK_TEXT |
| 57 | KPROBES_TEXT |
| 58 | IRQENTRY_TEXT |
| 59 | SOFTIRQENTRY_TEXT |
| 60 | *(.fixup) |
| 61 | *(.text.__*) |
| 62 | _etext = .; |
| 63 | } |
| 64 | /* TODO: Check if fixup and text.__* are really necessary |
| 65 | * fixup is definitely necessary |
| 66 | */ |
| 67 | |
| 68 | _sdata = .; |
| 69 | |
| 70 | /* Page alignment required for RO_DATA_SECTION */ |
| 71 | RO_DATA_SECTION(PAGE_SIZE) |
| 72 | _e_kernel_ro = .; |
| 73 | |
| 74 | /* Whatever comes after _e_kernel_ro had better be page-aligend, too */ |
| 75 | |
| 76 | /* 32 here is cacheline size... recheck this */ |
| 77 | RW_DATA_SECTION(32, PAGE_SIZE, PAGE_SIZE) |
| 78 | |
| 79 | _edata = .; |
| 80 | |
| 81 | EXCEPTION_TABLE(4) |
| 82 | NOTES |
| 83 | |
| 84 | /* Init code and data */ |
| 85 | . = ALIGN(PAGE_SIZE); |
| 86 | __init_begin = .; |
| 87 | |
| 88 | HEAD_TEXT_SECTION |
| 89 | |
| 90 | /* Page aligned */ |
| 91 | INIT_TEXT_SECTION(PAGE_SIZE) |
| 92 | |
| 93 | /* Align __setup_start on 16 byte boundary */ |
| 94 | INIT_DATA_SECTION(16) |
| 95 | |
| 96 | PERCPU_SECTION(L1_CACHE_BYTES) |
| 97 | |
| 98 | __init_end = .; |
| 99 | |
| 100 | . = ALIGN(PAGE_SIZE); |
| 101 | .initrd : AT(ADDR(.initrd) - LOAD_OFFSET) |
| 102 | { |
| 103 | __initrd_start = .; |
| 104 | *(.initrd) |
| 105 | __initrd_end = .; |
| 106 | FILL (0); |
| 107 | . = ALIGN (PAGE_SIZE); |
| 108 | } |
| 109 | |
| 110 | __vmlinux_end = .; /* last address of the physical file */ |
| 111 | |
| 112 | BSS_SECTION(0, 0, 0x20) |
| 113 | |
| 114 | _end = .; |
| 115 | |
| 116 | /* Throw in the debugging sections */ |
| 117 | STABS_DEBUG |
| 118 | DWARF_DEBUG |
| 119 | |
| 120 | /* Sections to be discarded -- must be last */ |
| 121 | DISCARDS |
| 122 | } |