1 /* SPDX-License-Identifier: GPL-2.0-only */ !! 1 #include <asm/asm-offsets.h>
>> 2 #include <asm/thread_info.h>
>> 3
>> 4 #define PAGE_SIZE _PAGE_SIZE
>> 5
2 /* 6 /*
3 * Linker script for Hexagon kernel !! 7 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
4 * !! 8 * ensure that it has .bss alignment (64K).
5 * Copyright (c) 2010-2014, The Linux Foundati <<
6 */ 9 */
>> 10 #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
7 11
8 #include <asm-generic/vmlinux.lds.h> 12 #include <asm-generic/vmlinux.lds.h>
9 #include <asm/asm-offsets.h> /* Most of th <<
10 #include <asm/mem-layout.h> /* except for <<
11 #include <asm/cache.h> /* and now we <<
12 #include <asm/thread_info.h> /* and we nee <<
13 <<
14 OUTPUT_ARCH(hexagon) <<
15 ENTRY(stext) <<
16 <<
17 jiffies = jiffies_64; <<
18 13
19 /* !! 14 #undef mips
20 See asm-generic/vmlinux.lds.h for expansion of !! 15 #define mips mips
21 See asm-generic/sections.h for seemingly requi !! 16 OUTPUT_ARCH(mips)
22 */ !! 17 ENTRY(kernel_entry)
23 !! 18 PHDRS {
24 #define PAGE_SIZE _PAGE_SIZE !! 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
>> 31 #else
>> 32 jiffies = jiffies_64;
>> 33 #endif
25 34
26 SECTIONS 35 SECTIONS
27 { 36 {
28 . = PAGE_OFFSET; !! 37 #ifdef CONFIG_BOOT_ELF64
29 !! 38 /* Read-only sections, merged into text segment: */
30 __init_begin = .; !! 39 /* . = 0xc000000000000000; */
31 HEAD_TEXT_SECTION !! 40
32 INIT_TEXT_SECTION(PAGE_SIZE) !! 41 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
33 PERCPU_SECTION(L1_CACHE_BYTES) !! 42 /* . = 0xc00000000001c000; */
34 __init_end = .; !! 43
35 !! 44 /* Set the vaddr for the text segment to a value
36 . = ALIGN(_PAGE_SIZE); !! 45 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
37 _stext = .; !! 46 * >= 0xa800 0000 0030 0000 otherwise
38 .text : AT(ADDR(.text)) { !! 47 */
39 _text = .; !! 48
>> 49 /* . = 0xa800000000300000; */
>> 50 . = 0xffffffff80300000;
>> 51 #endif
>> 52 . = VMLINUX_LOAD_ADDRESS;
>> 53 /* read-only */
>> 54 _text = .; /* Text and read-only data */
>> 55 .text : {
40 TEXT_TEXT 56 TEXT_TEXT
41 IRQENTRY_TEXT <<
42 SOFTIRQENTRY_TEXT <<
43 SCHED_TEXT 57 SCHED_TEXT
44 LOCK_TEXT 58 LOCK_TEXT
45 KPROBES_TEXT 59 KPROBES_TEXT
>> 60 IRQENTRY_TEXT
>> 61 *(.text.*)
46 *(.fixup) 62 *(.fixup)
>> 63 *(.gnu.warning)
>> 64 } :text = 0
>> 65 _etext = .; /* End of text section */
>> 66
>> 67 EXCEPTION_TABLE(16)
>> 68
>> 69 /* Exception table for data bus errors */
>> 70 __dbe_table : {
>> 71 __start___dbe_table = .;
>> 72 *(__dbe_table)
>> 73 __stop___dbe_table = .;
>> 74 }
>> 75
>> 76 #ifdef CONFIG_CAVIUM_OCTEON_SOC
>> 77 #define NOTES_HEADER
>> 78 #else /* CONFIG_CAVIUM_OCTEON_SOC */
>> 79 #define NOTES_HEADER :note
>> 80 #endif /* CONFIG_CAVIUM_OCTEON_SOC */
>> 81 NOTES :text NOTES_HEADER
>> 82 .dummy : { *(.dummy) } :text
>> 83
>> 84 _sdata = .; /* Start of data section */
>> 85 RODATA
>> 86
>> 87 /* writeable */
>> 88 .data : { /* Data */
>> 89 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
>> 90
>> 91 INIT_TASK_DATA(THREAD_SIZE)
>> 92 NOSAVE_DATA
>> 93 PAGE_ALIGNED_DATA(PAGE_SIZE)
>> 94 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 95 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 96 DATA_DATA
>> 97 CONSTRUCTORS
>> 98 }
>> 99 _gp = . + 0x8000;
>> 100 .lit8 : {
>> 101 *(.lit8)
>> 102 }
>> 103 .lit4 : {
>> 104 *(.lit4)
47 } 105 }
48 _etext = .; !! 106 /* We want the small data sections together, so single-instruction offsets
>> 107 can access them all, and initialized data all before uninitialized, so
>> 108 we can shorten the on-disk segment size. */
>> 109 .sdata : {
>> 110 *(.sdata)
>> 111 }
>> 112 _edata = .; /* End of data section */
49 113
50 INIT_DATA_SECTION(PAGE_SIZE) !! 114 /* will be freed after init */
>> 115 . = ALIGN(PAGE_SIZE); /* Init code and data */
>> 116 __init_begin = .;
>> 117 INIT_TEXT_SECTION(PAGE_SIZE)
>> 118 INIT_DATA_SECTION(16)
51 119
52 _sdata = .; !! 120 . = ALIGN(4);
53 RW_DATA(32,PAGE_SIZE,_THREAD_S !! 121 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
54 RO_DATA(PAGE_SIZE) !! 122 __mips_machines_start = .;
55 _edata = .; !! 123 *(.mips.machines.init)
>> 124 __mips_machines_end = .;
>> 125 }
56 126
57 EXCEPTION_TABLE(16) !! 127 /* .exit.text is discarded at runtime, not link time, to deal with
>> 128 * references from .rodata
>> 129 */
>> 130 .exit.text : {
>> 131 EXIT_TEXT
>> 132 }
>> 133 .exit.data : {
>> 134 EXIT_DATA
>> 135 }
>> 136 #ifdef CONFIG_SMP
>> 137 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 138 #endif
>> 139 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
>> 140 __appended_dtb = .;
>> 141 /* leave space for appended DTB */
>> 142 . += 0x100000;
>> 143 #elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
>> 144 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
>> 145 *(.appended_dtb)
>> 146 KEEP(*(.appended_dtb))
>> 147 }
>> 148 #endif
>> 149 /*
>> 150 * Align to 64K in attempt to eliminate holes before the
>> 151 * .bss..swapper_pg_dir section at the start of .bss. This
>> 152 * also satisfies PAGE_SIZE alignment as the largest page size
>> 153 * allowed is 64K.
>> 154 */
>> 155 . = ALIGN(0x10000);
>> 156 __init_end = .;
>> 157 /* freed after init ends here */
58 158
59 BSS_SECTION(_PAGE_SIZE, _PAGE_SIZE, _P !! 159 /*
>> 160 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
>> 161 * gets that alignment. .sbss should be empty, so there will be
>> 162 * no holes after __init_end. */
>> 163 BSS_SECTION(0, 0x10000, 8)
>> 164
>> 165 _end = . ;
>> 166
>> 167 /* These mark the ABI of the kernel for debuggers. */
>> 168 .mdebug.abi32 : {
>> 169 KEEP(*(.mdebug.abi32))
>> 170 }
>> 171 .mdebug.abi64 : {
>> 172 KEEP(*(.mdebug.abi64))
>> 173 }
60 174
61 _end = .; !! 175 /* This is the MIPS specific mdebug section. */
>> 176 .mdebug : {
>> 177 *(.mdebug)
>> 178 }
62 179
63 STABS_DEBUG 180 STABS_DEBUG
64 DWARF_DEBUG 181 DWARF_DEBUG
65 ELF_DETAILS <<
66 .hexagon.attributes 0 : { *(.hexagon.a <<
67 182
>> 183 /* These must appear regardless of . */
>> 184 .gptab.sdata : {
>> 185 *(.gptab.data)
>> 186 *(.gptab.sdata)
>> 187 }
>> 188 .gptab.sbss : {
>> 189 *(.gptab.bss)
>> 190 *(.gptab.sbss)
>> 191 }
>> 192
>> 193 /* Sections to be discarded */
68 DISCARDS 194 DISCARDS
>> 195 /DISCARD/ : {
>> 196 /* ABI crap starts here */
>> 197 *(.MIPS.abiflags)
>> 198 *(.MIPS.options)
>> 199 *(.options)
>> 200 *(.pdr)
>> 201 *(.reginfo)
>> 202 *(.eh_frame)
>> 203 }
69 } 204 }
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