1 /* SPDX-License-Identifier: GPL-2.0-or-later * !! 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* !! 2 #include <asm/asm-offsets.h>
3 * OpenRISC vmlinux.lds.S !! 3 #include <asm/thread_info.h>
4 * <<
5 * Linux architectural port borrowing liberall <<
6 * others. All original copyrights apply as p <<
7 * declaration. <<
8 * <<
9 * Modifications for the OpenRISC architecture <<
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@ <<
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@so <<
12 * <<
13 * ld script for OpenRISC architecture <<
14 */ <<
15 4
16 /* TODO !! 5 #define PAGE_SIZE _PAGE_SIZE
17 * - clean up __offset & stuff <<
18 * - change all 8192 alignment to <<
19 * - recheck if all alignments ar <<
20 */ <<
21 6
22 # define LOAD_OFFSET PAGE_OFFSET !! 7 /*
23 # define LOAD_BASE PAGE_OFFSET !! 8 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
>> 9 * ensure that it has .bss alignment (64K).
>> 10 */
>> 11 #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
24 12
25 #include <asm/page.h> <<
26 #include <asm/cache.h> <<
27 #include <asm/thread_info.h> <<
28 #include <asm-generic/vmlinux.lds.h> 13 #include <asm-generic/vmlinux.lds.h>
29 14
30 #ifdef __OR1K__ !! 15 #undef mips
31 #define __OUTPUT_FORMAT "elf32-or1k" !! 16 #define mips mips
>> 17 OUTPUT_ARCH(mips)
>> 18 ENTRY(kernel_entry)
>> 19 PHDRS {
>> 20 text PT_LOAD FLAGS(7); /* RWX */
>> 21 #ifndef CONFIG_CAVIUM_OCTEON_SOC
>> 22 note PT_NOTE FLAGS(4); /* R__ */
>> 23 #endif /* CAVIUM_OCTEON_SOC */
>> 24 }
>> 25
>> 26 #ifdef CONFIG_32BIT
>> 27 #ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 28 jiffies = jiffies_64;
>> 29 #else
>> 30 jiffies = jiffies_64 + 4;
>> 31 #endif
32 #else 32 #else
33 #define __OUTPUT_FORMAT "elf32-or32" !! 33 jiffies = jiffies_64;
34 #endif 34 #endif
35 35
36 OUTPUT_FORMAT(__OUTPUT_FORMAT, __OUTPUT_FORMAT <<
37 jiffies = jiffies_64 + 4; <<
38 <<
39 SECTIONS 36 SECTIONS
40 { 37 {
41 /* Read-only sections, merged into tex !! 38 #ifdef CONFIG_BOOT_ELF64
42 . = LOAD_BASE ; !! 39 /* Read-only sections, merged into text segment: */
43 !! 40 /* . = 0xc000000000000000; */
44 _text = .; !! 41
45 !! 42 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
46 /* _s_kernel_ro must be page aligned * !! 43 /* . = 0xc00000000001c000; */
47 . = ALIGN(PAGE_SIZE); !! 44
48 _s_kernel_ro = .; !! 45 /* Set the vaddr for the text segment to a value
49 !! 46 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
50 .text : AT(ADDR(.tex !! 47 * >= 0xa800 0000 0030 0000 otherwise
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.__* a <<
64 * fixup is definitely necessary <<
65 */ 48 */
66 49
67 _sdata = .; !! 50 /* . = 0xa800000000300000; */
68 !! 51 . = 0xffffffff80300000;
69 /* Page alignment required for RO_DATA !! 52 #endif
70 RO_DATA(PAGE_SIZE) !! 53 . = VMLINUX_LOAD_ADDRESS;
71 _e_kernel_ro = .; !! 54 /* read-only */
72 !! 55 _text = .; /* Text and read-only data */
73 /* Whatever comes after _e_kernel_ro h !! 56 .text : {
74 !! 57 TEXT_TEXT
75 /* 32 here is cacheline size... rechec !! 58 SCHED_TEXT
76 RW_DATA(32, PAGE_SIZE, PAGE_SIZE) !! 59 CPUIDLE_TEXT
77 !! 60 LOCK_TEXT
78 _edata = .; !! 61 KPROBES_TEXT
>> 62 IRQENTRY_TEXT
>> 63 SOFTIRQENTRY_TEXT
>> 64 *(.text.*)
>> 65 *(.fixup)
>> 66 *(.gnu.warning)
>> 67 } :text = 0
>> 68 _etext = .; /* End of text section */
>> 69
>> 70 EXCEPTION_TABLE(16)
>> 71
>> 72 /* Exception table for data bus errors */
>> 73 __dbe_table : {
>> 74 __start___dbe_table = .;
>> 75 *(__dbe_table)
>> 76 __stop___dbe_table = .;
>> 77 }
79 78
80 EXCEPTION_TABLE(4) !! 79 #ifdef CONFIG_CAVIUM_OCTEON_SOC
>> 80 #define NOTES_HEADER
>> 81 #else /* CONFIG_CAVIUM_OCTEON_SOC */
>> 82 #define NOTES_HEADER :note
>> 83 #endif /* CONFIG_CAVIUM_OCTEON_SOC */
>> 84 NOTES :text NOTES_HEADER
>> 85 .dummy : { *(.dummy) } :text
>> 86
>> 87 _sdata = .; /* Start of data section */
>> 88 RODATA
>> 89
>> 90 /* writeable */
>> 91 .data : { /* Data */
>> 92 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
>> 93
>> 94 INIT_TASK_DATA(THREAD_SIZE)
>> 95 NOSAVE_DATA
>> 96 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 97 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 98 DATA_DATA
>> 99 CONSTRUCTORS
>> 100 }
>> 101 BUG_TABLE
>> 102 _gp = . + 0x8000;
>> 103 .lit8 : {
>> 104 *(.lit8)
>> 105 }
>> 106 .lit4 : {
>> 107 *(.lit4)
>> 108 }
>> 109 /* We want the small data sections together, so single-instruction offsets
>> 110 can access them all, and initialized data all before uninitialized, so
>> 111 we can shorten the on-disk segment size. */
>> 112 .sdata : {
>> 113 *(.sdata)
>> 114 }
>> 115 _edata = .; /* End of data section */
81 116
82 /* Init code and data */ !! 117 /* will be freed after init */
83 . = ALIGN(PAGE_SIZE); !! 118 . = ALIGN(PAGE_SIZE); /* Init code and data */
84 __init_begin = .; 119 __init_begin = .;
85 <<
86 HEAD_TEXT_SECTION <<
87 <<
88 /* Page aligned */ <<
89 INIT_TEXT_SECTION(PAGE_SIZE) 120 INIT_TEXT_SECTION(PAGE_SIZE)
90 <<
91 /* Align __setup_start on 16 byte boun <<
92 INIT_DATA_SECTION(16) 121 INIT_DATA_SECTION(16)
93 122
94 PERCPU_SECTION(L1_CACHE_BYTES) !! 123 . = ALIGN(4);
>> 124 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
>> 125 __mips_machines_start = .;
>> 126 *(.mips.machines.init)
>> 127 __mips_machines_end = .;
>> 128 }
95 129
96 __init_end = .; !! 130 /* .exit.text is discarded at runtime, not link time, to deal with
>> 131 * references from .rodata
>> 132 */
>> 133 .exit.text : {
>> 134 EXIT_TEXT
>> 135 }
>> 136 .exit.data : {
>> 137 EXIT_DATA
>> 138 }
>> 139 #ifdef CONFIG_SMP
>> 140 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 141 #endif
97 142
98 BSS_SECTION(0, 0, 0x20) !! 143 #ifdef CONFIG_RELOCATABLE
>> 144 . = ALIGN(4);
99 145
100 _end = .; !! 146 .data.reloc : {
>> 147 _relocation_start = .;
>> 148 /*
>> 149 * Space for relocation table
>> 150 * This needs to be filled so that the
>> 151 * relocs tool can overwrite the content.
>> 152 * An invalid value is left at the start of the
>> 153 * section to abort relocation if the table
>> 154 * has not been filled in.
>> 155 */
>> 156 LONG(0xFFFFFFFF);
>> 157 FILL(0);
>> 158 . += CONFIG_RELOCATION_TABLE_SIZE - 4;
>> 159 _relocation_end = .;
>> 160 }
>> 161 #endif
>> 162
>> 163 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
>> 164 __appended_dtb = .;
>> 165 /* leave space for appended DTB */
>> 166 . += 0x100000;
>> 167 #elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
>> 168 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
>> 169 *(.appended_dtb)
>> 170 KEEP(*(.appended_dtb))
>> 171 }
>> 172 #endif
>> 173 /*
>> 174 * Align to 64K in attempt to eliminate holes before the
>> 175 * .bss..swapper_pg_dir section at the start of .bss. This
>> 176 * also satisfies PAGE_SIZE alignment as the largest page size
>> 177 * allowed is 64K.
>> 178 */
>> 179 . = ALIGN(0x10000);
>> 180 __init_end = .;
>> 181 /* freed after init ends here */
>> 182
>> 183 /*
>> 184 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
>> 185 * gets that alignment. .sbss should be empty, so there will be
>> 186 * no holes after __init_end. */
>> 187 BSS_SECTION(0, 0x10000, 8)
>> 188
>> 189 _end = . ;
>> 190
>> 191 /* These mark the ABI of the kernel for debuggers. */
>> 192 .mdebug.abi32 : {
>> 193 KEEP(*(.mdebug.abi32))
>> 194 }
>> 195 .mdebug.abi64 : {
>> 196 KEEP(*(.mdebug.abi64))
>> 197 }
>> 198
>> 199 /* This is the MIPS specific mdebug section. */
>> 200 .mdebug : {
>> 201 *(.mdebug)
>> 202 }
101 203
102 /* Throw in the debugging sections */ <<
103 STABS_DEBUG 204 STABS_DEBUG
104 DWARF_DEBUG 205 DWARF_DEBUG
105 ELF_DETAILS <<
106 206
107 /* Sections to be discarded -- must be !! 207 /* These must appear regardless of . */
>> 208 .gptab.sdata : {
>> 209 *(.gptab.data)
>> 210 *(.gptab.sdata)
>> 211 }
>> 212 .gptab.sbss : {
>> 213 *(.gptab.bss)
>> 214 *(.gptab.sbss)
>> 215 }
>> 216
>> 217 /* Sections to be discarded */
108 DISCARDS 218 DISCARDS
>> 219 /DISCARD/ : {
>> 220 /* ABI crap starts here */
>> 221 *(.MIPS.abiflags)
>> 222 *(.MIPS.options)
>> 223 *(.options)
>> 224 *(.pdr)
>> 225 *(.reginfo)
>> 226 *(.eh_frame)
>> 227 }
109 } 228 }
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