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 LOCK_TEXT
56 KPROBES_TEXT
57 IRQENTRY_TEXT
58 SOFTIRQENTRY_TEXT
59 *(.fixup)
60 *(.text.__*)
61 _etext = .;
62 }
63 /* TODO: Check if fixup and text.__* are really necessary
64 * fixup is definitely necessary
65 */
66
67 _sdata = .;
68
69 /* Page alignment required for RO_DATA */
70 RO_DATA(PAGE_SIZE)
71 _e_kernel_ro = .;
72
73 /* Whatever comes after _e_kernel_ro had better be page-aligend, too */
74
75 /* 32 here is cacheline size... recheck this */
76 RW_DATA(32, PAGE_SIZE, PAGE_SIZE)
77
78 _edata = .;
79
80 EXCEPTION_TABLE(4)
81
82 /* Init code and data */
83 . = ALIGN(PAGE_SIZE);
84 __init_begin = .;
85
86 HEAD_TEXT_SECTION
87
88 /* Page aligned */
89 INIT_TEXT_SECTION(PAGE_SIZE)
90
91 /* Align __setup_start on 16 byte boundary */
92 INIT_DATA_SECTION(16)
93
94 PERCPU_SECTION(L1_CACHE_BYTES)
95
96 __init_end = .;
97
98 BSS_SECTION(0, 0, 0x20)
99
100 _end = .;
101
102 /* Throw in the debugging sections */
103 STABS_DEBUG
104 DWARF_DEBUG
105 ELF_DETAILS
106
107 /* Sections to be discarded -- must be last */
108 DISCARDS
109 }
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