| Jonas Bonn | f8c4a27 | 2011-06-04 21:52:05 +0300 | [diff] [blame] | 1 | /* |
| 2 | * OpenRISC vmlinux.lds.S |
| 3 | * |
| 4 | * Linux architectural port borrowing liberally from similar works of |
| 5 | * others. All original copyrights apply as per the original source |
| 6 | * declaration. |
| 7 | * |
| 8 | * Modifications for the OpenRISC architecture: |
| 9 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> |
| 10 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License |
| 14 | * as published by the Free Software Foundation; either version |
| 15 | * 2 of the License, or (at your option) any later version. |
| 16 | * |
| 17 | * ld script for OpenRISC architecture |
| 18 | */ |
| 19 | |
| 20 | /* TODO |
| 21 | * - clean up __offset & stuff |
| 22 | * - change all 8192 aligment to PAGE !!! |
| 23 | * - recheck if all aligments are really needed |
| 24 | */ |
| 25 | |
| 26 | # define LOAD_OFFSET PAGE_OFFSET |
| 27 | # define LOAD_BASE PAGE_OFFSET |
| 28 | |
| 29 | #include <asm/page.h> |
| 30 | #include <asm/cache.h> |
| 31 | #include <asm-generic/vmlinux.lds.h> |
| 32 | |
| 33 | OUTPUT_FORMAT("elf32-or32", "elf32-or32", "elf32-or32") |
| 34 | jiffies = jiffies_64 + 4; |
| 35 | |
| 36 | SECTIONS |
| 37 | { |
| 38 | /* Read-only sections, merged into text segment: */ |
| 39 | . = LOAD_BASE ; |
| 40 | |
| 41 | /* _s_kernel_ro must be page aligned */ |
| 42 | . = ALIGN(PAGE_SIZE); |
| 43 | _s_kernel_ro = .; |
| 44 | |
| 45 | .text : AT(ADDR(.text) - LOAD_OFFSET) |
| 46 | { |
| 47 | _stext = .; |
| 48 | TEXT_TEXT |
| 49 | SCHED_TEXT |
| 50 | LOCK_TEXT |
| 51 | KPROBES_TEXT |
| 52 | IRQENTRY_TEXT |
| 53 | *(.fixup) |
| 54 | *(.text.__*) |
| 55 | _etext = .; |
| 56 | } |
| 57 | /* TODO: Check if fixup and text.__* are really necessary |
| 58 | * fixup is definitely necessary |
| 59 | */ |
| 60 | |
| 61 | _sdata = .; |
| 62 | |
| 63 | /* Page alignment required for RO_DATA_SECTION */ |
| 64 | RO_DATA_SECTION(PAGE_SIZE) |
| 65 | _e_kernel_ro = .; |
| 66 | |
| 67 | /* Whatever comes after _e_kernel_ro had better be page-aligend, too */ |
| 68 | |
| 69 | /* 32 here is cacheline size... recheck this */ |
| 70 | RW_DATA_SECTION(32, PAGE_SIZE, PAGE_SIZE) |
| 71 | |
| 72 | _edata = .; |
| 73 | |
| 74 | EXCEPTION_TABLE(4) |
| 75 | NOTES |
| 76 | |
| 77 | /* Init code and data */ |
| 78 | . = ALIGN(PAGE_SIZE); |
| 79 | __init_begin = .; |
| 80 | |
| 81 | HEAD_TEXT_SECTION |
| 82 | |
| 83 | /* Page aligned */ |
| 84 | INIT_TEXT_SECTION(PAGE_SIZE) |
| 85 | |
| 86 | /* Align __setup_start on 16 byte boundary */ |
| 87 | INIT_DATA_SECTION(16) |
| 88 | |
| 89 | PERCPU_SECTION(L1_CACHE_BYTES) |
| 90 | |
| 91 | __init_end = .; |
| 92 | |
| 93 | . = ALIGN(PAGE_SIZE); |
| 94 | .initrd : AT(ADDR(.initrd) - LOAD_OFFSET) |
| 95 | { |
| 96 | __initrd_start = .; |
| 97 | *(.initrd) |
| 98 | __initrd_end = .; |
| 99 | FILL (0); |
| 100 | . = ALIGN (PAGE_SIZE); |
| 101 | } |
| 102 | |
| 103 | __vmlinux_end = .; /* last address of the physical file */ |
| 104 | |
| 105 | BSS_SECTION(0, 0, 0x20) |
| 106 | |
| 107 | _end = .; |
| 108 | |
| 109 | /* Throw in the debugging sections */ |
| 110 | STABS_DEBUG |
| 111 | DWARF_DEBUG |
| 112 | |
| 113 | /* Sections to be discarded -- must be last */ |
| 114 | DISCARDS |
| 115 | } |