1 /* !! 1 /* SPDX-License-Identifier: GPL-2.0 */
2 * Copyright (C) 2008-2009 Michal Simek <monstr !! 2 #include <asm/asm-offsets.h>
3 * Copyright (C) 2008-2009 PetaLogix !! 3 #include <asm/thread_info.h>
4 * Copyright (C) 2006 Atmark Techno, Inc. <<
5 * <<
6 * This file is subject to the terms and condi <<
7 * License. See the file "COPYING" in the main <<
8 * for more details. <<
9 */ <<
10 4
11 OUTPUT_ARCH(microblaze) !! 5 #define PAGE_SIZE _PAGE_SIZE
12 ENTRY(microblaze_start) <<
13 6
14 #define RO_EXCEPTION_TABLE_ALIGN 16 !! 7 /*
>> 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)
15 12
16 #include <asm/cache.h> <<
17 #include <asm/page.h> <<
18 #include <asm-generic/vmlinux.lds.h> 13 #include <asm-generic/vmlinux.lds.h>
19 #include <asm/thread_info.h> <<
20 14
21 #ifdef __MICROBLAZEEL__ !! 15 #undef mips
22 jiffies = jiffies_64; !! 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
23 #else 32 #else
24 jiffies = jiffies_64 + 4; !! 33 jiffies = jiffies_64;
25 #endif 34 #endif
26 35
27 SECTIONS { !! 36 SECTIONS
28 . = CONFIG_KERNEL_START; !! 37 {
29 microblaze_start = CONFIG_KERNEL_BASE_ !! 38 #ifdef CONFIG_BOOT_ELF64
30 .text : AT(ADDR(.text) - LOAD_OFFSET) !! 39 /* Read-only sections, merged into text segment: */
31 _text = . ; !! 40 /* . = 0xc000000000000000; */
32 _stext = . ; !! 41
33 HEAD_TEXT !! 42 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
>> 43 /* . = 0xc00000000001c000; */
>> 44
>> 45 /* Set the vaddr for the text segment to a value
>> 46 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
>> 47 * >= 0xa800 0000 0030 0000 otherwise
>> 48 */
>> 49
>> 50 /* . = 0xa800000000300000; */
>> 51 . = 0xffffffff80300000;
>> 52 #endif
>> 53 . = VMLINUX_LOAD_ADDRESS;
>> 54 /* read-only */
>> 55 _text = .; /* Text and read-only data */
>> 56 .text : {
34 TEXT_TEXT 57 TEXT_TEXT
35 *(.fixup) <<
36 EXIT_TEXT <<
37 EXIT_CALL <<
38 SCHED_TEXT 58 SCHED_TEXT
>> 59 CPUIDLE_TEXT
39 LOCK_TEXT 60 LOCK_TEXT
40 KPROBES_TEXT 61 KPROBES_TEXT
41 IRQENTRY_TEXT 62 IRQENTRY_TEXT
42 SOFTIRQENTRY_TEXT 63 SOFTIRQENTRY_TEXT
43 . = ALIGN (4) ; !! 64 *(.text.*)
44 _etext = . ; !! 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 }
>> 78
>> 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)
45 } 114 }
>> 115 _edata = .; /* End of data section */
46 116
47 . = ALIGN (8) ; !! 117 /* will be freed after init */
48 __fdt_blob : AT(ADDR(__fdt_blob) - LOA !! 118 . = ALIGN(PAGE_SIZE); /* Init code and data */
49 _fdt_start = . ; !! 119 __init_begin = .;
50 *(__fdt_blob) ; !! 120 INIT_TEXT_SECTION(PAGE_SIZE)
51 . = _fdt_start + 0x10000; !! 121 INIT_DATA_SECTION(16)
52 _fdt_end = . ; <<
53 } <<
54 122
55 . = ALIGN(16); !! 123 . = ALIGN(4);
56 RO_DATA(4096) !! 124 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
>> 125 __mips_machines_start = .;
>> 126 *(.mips.machines.init)
>> 127 __mips_machines_end = .;
>> 128 }
57 129
58 /* !! 130 /* .exit.text is discarded at runtime, not link time, to deal with
59 * sdata2 section can go anywhere, but !! 131 * references from .rodata
60 * and SDA2_BASE must point to the mid <<
61 */ 132 */
62 .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFS !! 133 .exit.text : {
63 _ssrw = .; !! 134 EXIT_TEXT
64 . = ALIGN(PAGE_SIZE); /* page <<
65 *(.sdata2) <<
66 . = ALIGN(8); <<
67 _essrw = .; <<
68 _ssrw_size = _essrw - _ssrw; <<
69 _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_si <<
70 } <<
71 <<
72 _sdata = . ; <<
73 RW_DATA(32, PAGE_SIZE, THREAD_SIZE) <<
74 _edata = . ; <<
75 <<
76 /* Under the microblaze ABI, .sdata an <<
77 . = ALIGN(8); <<
78 .sdata : AT(ADDR(.sdata) - LOAD_OFFSET <<
79 _ssro = .; <<
80 *(.sdata) <<
81 } 135 }
82 !! 136 .exit.data : {
83 .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) !! 137 EXIT_DATA
84 _ssbss = .; <<
85 *(.sbss) <<
86 _esbss = .; <<
87 _essro = .; <<
88 _ssro_size = _essro - _ssro ; <<
89 _KERNEL_SDA_BASE_ = _ssro + (_ <<
90 } 138 }
>> 139 #ifdef CONFIG_SMP
>> 140 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 141 #endif
91 142
92 PERCPU_SECTION(L1_CACHE_BYTES) !! 143 #ifdef CONFIG_RELOCATABLE
93 !! 144 . = ALIGN(4);
94 . = ALIGN(PAGE_SIZE); <<
95 __init_begin = .; <<
96 <<
97 INIT_TEXT_SECTION(PAGE_SIZE) <<
98 145
99 .init.data : AT(ADDR(.init.data) - LOA !! 146 .data.reloc : {
100 INIT_DATA !! 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 = .;
101 } 160 }
>> 161 #endif
102 162
103 . = ALIGN(4); !! 163 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
104 .init.ivt : AT(ADDR(.init.ivt) - LOAD_ !! 164 __appended_dtb = .;
105 __ivt_start = .; !! 165 /* leave space for appended DTB */
106 *(.init.ivt) !! 166 . += 0x100000;
107 __ivt_end = .; !! 167 #elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
>> 168 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
>> 169 *(.appended_dtb)
>> 170 KEEP(*(.appended_dtb))
108 } 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 */
109 182
110 .init.setup : AT(ADDR(.init.setup) - L !! 183 /*
111 INIT_SETUP(0) !! 184 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
112 } !! 185 * gets that alignment. .sbss should be empty, so there will be
>> 186 * no holes after __init_end. */
>> 187 BSS_SECTION(0, 0x10000, 8)
113 188
114 .initcall.init : AT(ADDR(.initcall.ini !! 189 _end = . ;
115 INIT_CALLS <<
116 } <<
117 190
118 .con_initcall.init : AT(ADDR(.con_init !! 191 /* These mark the ABI of the kernel for debuggers. */
119 CON_INITCALL !! 192 .mdebug.abi32 : {
>> 193 KEEP(*(.mdebug.abi32))
>> 194 }
>> 195 .mdebug.abi64 : {
>> 196 KEEP(*(.mdebug.abi64))
120 } 197 }
121 198
122 __init_end_before_initramfs = .; !! 199 /* This is the MIPS specific mdebug section. */
123 !! 200 .mdebug : {
124 .init.ramfs : AT(ADDR(.init.ramfs) - L !! 201 *(.mdebug)
125 INIT_RAM_FS <<
126 } 202 }
127 203
128 __init_end = .; !! 204 STABS_DEBUG
>> 205 DWARF_DEBUG
129 206
130 .bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) !! 207 /* These must appear regardless of . */
131 /* page aligned when MMU used !! 208 .gptab.sdata : {
132 __bss_start = . ; !! 209 *(.gptab.data)
133 *(.bss*) !! 210 *(.gptab.sdata)
134 *(COMMON) !! 211 }
135 . = ALIGN (4) ; !! 212 .gptab.sbss : {
136 __bss_stop = . ; !! 213 *(.gptab.bss)
>> 214 *(.gptab.sbss)
137 } 215 }
138 . = ALIGN(PAGE_SIZE); <<
139 _end = .; <<
140 216
>> 217 /* Sections to be discarded */
141 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 }
142 } 228 }
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