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 . = LINKER_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 PAGE_ALIGNED_DATA(PAGE_SIZE)
>> 97 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 98 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 99 DATA_DATA
>> 100 CONSTRUCTORS
>> 101 }
>> 102 BUG_TABLE
>> 103 _gp = . + 0x8000;
>> 104 .lit8 : {
>> 105 *(.lit8)
>> 106 }
>> 107 .lit4 : {
>> 108 *(.lit4)
>> 109 }
>> 110 /* We want the small data sections together, so single-instruction offsets
>> 111 can access them all, and initialized data all before uninitialized, so
>> 112 we can shorten the on-disk segment size. */
>> 113 .sdata : {
>> 114 *(.sdata)
45 } 115 }
>> 116 _edata = .; /* End of data section */
46 117
47 . = ALIGN (8) ; !! 118 /* will be freed after init */
48 __fdt_blob : AT(ADDR(__fdt_blob) - LOA !! 119 . = ALIGN(PAGE_SIZE); /* Init code and data */
49 _fdt_start = . ; !! 120 __init_begin = .;
50 *(__fdt_blob) ; !! 121 INIT_TEXT_SECTION(PAGE_SIZE)
51 . = _fdt_start + 0x10000; !! 122 INIT_DATA_SECTION(16)
52 _fdt_end = . ; <<
53 } <<
54 123
55 . = ALIGN(16); !! 124 . = ALIGN(4);
56 RO_DATA(4096) !! 125 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
>> 126 __mips_machines_start = .;
>> 127 *(.mips.machines.init)
>> 128 __mips_machines_end = .;
>> 129 }
57 130
58 /* !! 131 /* .exit.text is discarded at runtime, not link time, to deal with
59 * sdata2 section can go anywhere, but !! 132 * references from .rodata
60 * and SDA2_BASE must point to the mid <<
61 */ 133 */
62 .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFS !! 134 .exit.text : {
63 _ssrw = .; !! 135 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 } 136 }
>> 137 .exit.data : {
>> 138 EXIT_DATA
>> 139 }
>> 140 #ifdef CONFIG_SMP
>> 141 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 142 #endif
82 143
83 .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) !! 144 #ifdef CONFIG_MIPS_ELF_APPENDED_DTB
84 _ssbss = .; !! 145 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
85 *(.sbss) !! 146 *(.appended_dtb)
86 _esbss = .; !! 147 KEEP(*(.appended_dtb))
87 _essro = .; <<
88 _ssro_size = _essro - _ssro ; <<
89 _KERNEL_SDA_BASE_ = _ssro + (_ <<
90 } 148 }
>> 149 #endif
91 150
92 PERCPU_SECTION(L1_CACHE_BYTES) !! 151 #ifdef CONFIG_RELOCATABLE
>> 152 . = ALIGN(4);
93 153
94 . = ALIGN(PAGE_SIZE); !! 154 .data.reloc : {
95 __init_begin = .; !! 155 _relocation_start = .;
>> 156 /*
>> 157 * Space for relocation table
>> 158 * This needs to be filled so that the
>> 159 * relocs tool can overwrite the content.
>> 160 * An invalid value is left at the start of the
>> 161 * section to abort relocation if the table
>> 162 * has not been filled in.
>> 163 */
>> 164 LONG(0xFFFFFFFF);
>> 165 FILL(0);
>> 166 . += CONFIG_RELOCATION_TABLE_SIZE - 4;
>> 167 _relocation_end = .;
>> 168 }
>> 169 #endif
96 170
97 INIT_TEXT_SECTION(PAGE_SIZE) !! 171 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
>> 172 __appended_dtb = .;
>> 173 /* leave space for appended DTB */
>> 174 . += 0x100000;
>> 175 #endif
>> 176 /*
>> 177 * Align to 64K in attempt to eliminate holes before the
>> 178 * .bss..swapper_pg_dir section at the start of .bss. This
>> 179 * also satisfies PAGE_SIZE alignment as the largest page size
>> 180 * allowed is 64K.
>> 181 */
>> 182 . = ALIGN(0x10000);
>> 183 __init_end = .;
>> 184 /* freed after init ends here */
98 185
99 .init.data : AT(ADDR(.init.data) - LOA !! 186 /*
100 INIT_DATA !! 187 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
101 } !! 188 * gets that alignment. .sbss should be empty, so there will be
>> 189 * no holes after __init_end. */
>> 190 BSS_SECTION(0, 0x10000, 8)
102 191
103 . = ALIGN(4); !! 192 _end = . ;
104 .init.ivt : AT(ADDR(.init.ivt) - LOAD_ <<
105 __ivt_start = .; <<
106 *(.init.ivt) <<
107 __ivt_end = .; <<
108 } <<
109 193
110 .init.setup : AT(ADDR(.init.setup) - L !! 194 /* These mark the ABI of the kernel for debuggers. */
111 INIT_SETUP(0) !! 195 .mdebug.abi32 : {
>> 196 KEEP(*(.mdebug.abi32))
112 } 197 }
113 !! 198 .mdebug.abi64 : {
114 .initcall.init : AT(ADDR(.initcall.ini !! 199 KEEP(*(.mdebug.abi64))
115 INIT_CALLS <<
116 } 200 }
117 201
118 .con_initcall.init : AT(ADDR(.con_init !! 202 /* This is the MIPS specific mdebug section. */
119 CON_INITCALL !! 203 .mdebug : {
>> 204 *(.mdebug)
120 } 205 }
121 206
122 __init_end_before_initramfs = .; !! 207 STABS_DEBUG
>> 208 DWARF_DEBUG
123 209
124 .init.ramfs : AT(ADDR(.init.ramfs) - L !! 210 /* These must appear regardless of . */
125 INIT_RAM_FS !! 211 .gptab.sdata : {
>> 212 *(.gptab.data)
>> 213 *(.gptab.sdata)
126 } 214 }
127 !! 215 .gptab.sbss : {
128 __init_end = .; !! 216 *(.gptab.bss)
129 !! 217 *(.gptab.sbss)
130 .bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) <<
131 /* page aligned when MMU used <<
132 __bss_start = . ; <<
133 *(.bss*) <<
134 *(COMMON) <<
135 . = ALIGN (4) ; <<
136 __bss_stop = . ; <<
137 } 218 }
138 . = ALIGN(PAGE_SIZE); <<
139 _end = .; <<
140 219
>> 220 /* Sections to be discarded */
141 DISCARDS 221 DISCARDS
>> 222 /DISCARD/ : {
>> 223 /* ABI crap starts here */
>> 224 *(.MIPS.abiflags)
>> 225 *(.MIPS.options)
>> 226 *(.options)
>> 227 *(.pdr)
>> 228 *(.reginfo)
>> 229 *(.eh_frame)
>> 230 }
142 } 231 }
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