1 /* !! 1 #include <asm/asm-offsets.h>
2 * Copyright (C) 2008-2009 Michal Simek <monstr !! 2 #include <asm/thread_info.h>
3 * Copyright (C) 2008-2009 PetaLogix <<
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 3
11 OUTPUT_ARCH(microblaze) !! 4 #define PAGE_SIZE _PAGE_SIZE
12 ENTRY(microblaze_start) <<
13 5
14 #define RO_EXCEPTION_TABLE_ALIGN 16 !! 6 /*
>> 7 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
>> 8 * ensure that it has .bss alignment (64K).
>> 9 */
>> 10 #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
15 11
16 #include <asm/cache.h> <<
17 #include <asm/page.h> <<
18 #include <asm-generic/vmlinux.lds.h> 12 #include <asm-generic/vmlinux.lds.h>
19 #include <asm/thread_info.h> <<
20 13
21 #ifdef __MICROBLAZEEL__ !! 14 #undef mips
22 jiffies = jiffies_64; !! 15 #define mips mips
>> 16 OUTPUT_ARCH(mips)
>> 17 ENTRY(kernel_entry)
>> 18 PHDRS {
>> 19 text PT_LOAD FLAGS(7); /* RWX */
>> 20 #ifndef CONFIG_CAVIUM_OCTEON_SOC
>> 21 note PT_NOTE FLAGS(4); /* R__ */
>> 22 #endif /* CAVIUM_OCTEON_SOC */
>> 23 }
>> 24
>> 25 #ifdef CONFIG_32BIT
>> 26 #ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 27 jiffies = jiffies_64;
>> 28 #else
>> 29 jiffies = jiffies_64 + 4;
>> 30 #endif
23 #else 31 #else
24 jiffies = jiffies_64 + 4; !! 32 jiffies = jiffies_64;
25 #endif 33 #endif
26 34
27 SECTIONS { !! 35 SECTIONS
28 . = CONFIG_KERNEL_START; !! 36 {
29 microblaze_start = CONFIG_KERNEL_BASE_ !! 37 #ifdef CONFIG_BOOT_ELF64
30 .text : AT(ADDR(.text) - LOAD_OFFSET) !! 38 /* Read-only sections, merged into text segment: */
31 _text = . ; !! 39 /* . = 0xc000000000000000; */
32 _stext = . ; !! 40
33 HEAD_TEXT !! 41 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
>> 42 /* . = 0xc00000000001c000; */
>> 43
>> 44 /* Set the vaddr for the text segment to a value
>> 45 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
>> 46 * >= 0xa800 0000 0030 0000 otherwise
>> 47 */
>> 48
>> 49 /* . = 0xa800000000300000; */
>> 50 . = 0xffffffff80300000;
>> 51 #endif
>> 52 . = LINKER_LOAD_ADDRESS;
>> 53 /* read-only */
>> 54 _text = .; /* Text and read-only data */
>> 55 .text : {
34 TEXT_TEXT 56 TEXT_TEXT
35 *(.fixup) <<
36 EXIT_TEXT <<
37 EXIT_CALL <<
38 SCHED_TEXT 57 SCHED_TEXT
>> 58 CPUIDLE_TEXT
39 LOCK_TEXT 59 LOCK_TEXT
40 KPROBES_TEXT 60 KPROBES_TEXT
41 IRQENTRY_TEXT 61 IRQENTRY_TEXT
42 SOFTIRQENTRY_TEXT 62 SOFTIRQENTRY_TEXT
43 . = ALIGN (4) ; !! 63 *(.text.*)
44 _etext = . ; !! 64 *(.fixup)
>> 65 *(.gnu.warning)
>> 66 } :text = 0
>> 67 _etext = .; /* End of text section */
>> 68
>> 69 EXCEPTION_TABLE(16)
>> 70
>> 71 /* Exception table for data bus errors */
>> 72 __dbe_table : {
>> 73 __start___dbe_table = .;
>> 74 *(__dbe_table)
>> 75 __stop___dbe_table = .;
>> 76 }
>> 77
>> 78 #ifdef CONFIG_CAVIUM_OCTEON_SOC
>> 79 #define NOTES_HEADER
>> 80 #else /* CONFIG_CAVIUM_OCTEON_SOC */
>> 81 #define NOTES_HEADER :note
>> 82 #endif /* CONFIG_CAVIUM_OCTEON_SOC */
>> 83 NOTES :text NOTES_HEADER
>> 84 .dummy : { *(.dummy) } :text
>> 85
>> 86 _sdata = .; /* Start of data section */
>> 87 RODATA
>> 88
>> 89 /* writeable */
>> 90 .data : { /* Data */
>> 91 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
>> 92
>> 93 INIT_TASK_DATA(THREAD_SIZE)
>> 94 NOSAVE_DATA
>> 95 PAGE_ALIGNED_DATA(PAGE_SIZE)
>> 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 _gp = . + 0x8000;
>> 102 .lit8 : {
>> 103 *(.lit8)
>> 104 }
>> 105 .lit4 : {
>> 106 *(.lit4)
>> 107 }
>> 108 /* We want the small data sections together, so single-instruction offsets
>> 109 can access them all, and initialized data all before uninitialized, so
>> 110 we can shorten the on-disk segment size. */
>> 111 .sdata : {
>> 112 *(.sdata)
45 } 113 }
>> 114 _edata = .; /* End of data section */
46 115
47 . = ALIGN (8) ; !! 116 /* will be freed after init */
48 __fdt_blob : AT(ADDR(__fdt_blob) - LOA !! 117 . = ALIGN(PAGE_SIZE); /* Init code and data */
49 _fdt_start = . ; !! 118 __init_begin = .;
50 *(__fdt_blob) ; !! 119 INIT_TEXT_SECTION(PAGE_SIZE)
51 . = _fdt_start + 0x10000; !! 120 INIT_DATA_SECTION(16)
52 _fdt_end = . ; <<
53 } <<
54 121
55 . = ALIGN(16); !! 122 . = ALIGN(4);
56 RO_DATA(4096) !! 123 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
>> 124 __mips_machines_start = .;
>> 125 *(.mips.machines.init)
>> 126 __mips_machines_end = .;
>> 127 }
57 128
58 /* !! 129 /* .exit.text is discarded at runtime, not link time, to deal with
59 * sdata2 section can go anywhere, but !! 130 * references from .rodata
60 * and SDA2_BASE must point to the mid <<
61 */ 131 */
62 .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFS !! 132 .exit.text : {
63 _ssrw = .; !! 133 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 } 134 }
>> 135 .exit.data : {
>> 136 EXIT_DATA
>> 137 }
>> 138 #ifdef CONFIG_SMP
>> 139 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 140 #endif
82 141
83 .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) !! 142 #ifdef CONFIG_MIPS_ELF_APPENDED_DTB
84 _ssbss = .; !! 143 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
85 *(.sbss) !! 144 *(.appended_dtb)
86 _esbss = .; !! 145 KEEP(*(.appended_dtb))
87 _essro = .; <<
88 _ssro_size = _essro - _ssro ; <<
89 _KERNEL_SDA_BASE_ = _ssro + (_ <<
90 } 146 }
>> 147 #endif
91 148
92 PERCPU_SECTION(L1_CACHE_BYTES) !! 149 #ifdef CONFIG_RELOCATABLE
>> 150 . = ALIGN(4);
93 151
94 . = ALIGN(PAGE_SIZE); !! 152 .data.reloc : {
95 __init_begin = .; !! 153 _relocation_start = .;
>> 154 /*
>> 155 * Space for relocation table
>> 156 * This needs to be filled so that the
>> 157 * relocs tool can overwrite the content.
>> 158 * An invalid value is left at the start of the
>> 159 * section to abort relocation if the table
>> 160 * has not been filled in.
>> 161 */
>> 162 LONG(0xFFFFFFFF);
>> 163 FILL(0);
>> 164 . += CONFIG_RELOCATION_TABLE_SIZE - 4;
>> 165 _relocation_end = .;
>> 166 }
>> 167 #endif
96 168
97 INIT_TEXT_SECTION(PAGE_SIZE) !! 169 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
>> 170 __appended_dtb = .;
>> 171 /* leave space for appended DTB */
>> 172 . += 0x100000;
>> 173 #endif
>> 174 /*
>> 175 * Align to 64K in attempt to eliminate holes before the
>> 176 * .bss..swapper_pg_dir section at the start of .bss. This
>> 177 * also satisfies PAGE_SIZE alignment as the largest page size
>> 178 * allowed is 64K.
>> 179 */
>> 180 . = ALIGN(0x10000);
>> 181 __init_end = .;
>> 182 /* freed after init ends here */
98 183
99 .init.data : AT(ADDR(.init.data) - LOA !! 184 /*
100 INIT_DATA !! 185 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
101 } !! 186 * gets that alignment. .sbss should be empty, so there will be
>> 187 * no holes after __init_end. */
>> 188 BSS_SECTION(0, 0x10000, 8)
102 189
103 . = ALIGN(4); !! 190 _end = . ;
104 .init.ivt : AT(ADDR(.init.ivt) - LOAD_ <<
105 __ivt_start = .; <<
106 *(.init.ivt) <<
107 __ivt_end = .; <<
108 } <<
109 191
110 .init.setup : AT(ADDR(.init.setup) - L !! 192 /* These mark the ABI of the kernel for debuggers. */
111 INIT_SETUP(0) !! 193 .mdebug.abi32 : {
>> 194 KEEP(*(.mdebug.abi32))
112 } 195 }
113 !! 196 .mdebug.abi64 : {
114 .initcall.init : AT(ADDR(.initcall.ini !! 197 KEEP(*(.mdebug.abi64))
115 INIT_CALLS <<
116 } 198 }
117 199
118 .con_initcall.init : AT(ADDR(.con_init !! 200 /* This is the MIPS specific mdebug section. */
119 CON_INITCALL !! 201 .mdebug : {
>> 202 *(.mdebug)
120 } 203 }
121 204
122 __init_end_before_initramfs = .; !! 205 STABS_DEBUG
>> 206 DWARF_DEBUG
123 207
124 .init.ramfs : AT(ADDR(.init.ramfs) - L !! 208 /* These must appear regardless of . */
125 INIT_RAM_FS !! 209 .gptab.sdata : {
>> 210 *(.gptab.data)
>> 211 *(.gptab.sdata)
126 } 212 }
127 !! 213 .gptab.sbss : {
128 __init_end = .; !! 214 *(.gptab.bss)
129 !! 215 *(.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 } 216 }
138 . = ALIGN(PAGE_SIZE); <<
139 _end = .; <<
140 217
>> 218 /* Sections to be discarded */
141 DISCARDS 219 DISCARDS
>> 220 /DISCARD/ : {
>> 221 /* ABI crap starts here */
>> 222 *(.MIPS.abiflags)
>> 223 *(.MIPS.options)
>> 224 *(.options)
>> 225 *(.pdr)
>> 226 *(.reginfo)
>> 227 *(.eh_frame)
>> 228 }
142 } 229 }
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