1 /* SPDX-License-Identifier: GPL-2.0-only */ !! 1 #include <asm/asm-offsets.h>
2 /* !! 2 #include <asm/page.h>
3 * Linker script for Hexagon kernel !! 3 #include <asm/thread_info.h>
4 * <<
5 * Copyright (c) 2010-2014, The Linux Foundati <<
6 */ <<
7 <<
8 #include <asm-generic/vmlinux.lds.h> 4 #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 <<
19 /* <<
20 See asm-generic/vmlinux.lds.h for expansion of <<
21 See asm-generic/sections.h for seemingly requi <<
22 */ <<
23 5
24 #define PAGE_SIZE _PAGE_SIZE !! 6 #undef mips
>> 7 #define mips mips
>> 8 OUTPUT_ARCH(mips)
>> 9 ENTRY(kernel_entry)
>> 10 PHDRS {
>> 11 text PT_LOAD FLAGS(7); /* RWX */
>> 12 note PT_NOTE FLAGS(4); /* R__ */
>> 13 }
>> 14
>> 15 #ifdef CONFIG_32BIT
>> 16 #ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 17 jiffies = jiffies_64;
>> 18 #else
>> 19 jiffies = jiffies_64 + 4;
>> 20 #endif
>> 21 #else
>> 22 jiffies = jiffies_64;
>> 23 #endif
25 24
26 SECTIONS 25 SECTIONS
27 { 26 {
28 . = PAGE_OFFSET; !! 27 #ifdef CONFIG_BOOT_ELF64
29 !! 28 /* Read-only sections, merged into text segment: */
30 __init_begin = .; !! 29 /* . = 0xc000000000000000; */
31 HEAD_TEXT_SECTION !! 30
32 INIT_TEXT_SECTION(PAGE_SIZE) !! 31 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
33 PERCPU_SECTION(L1_CACHE_BYTES) !! 32 /* . = 0xc00000000001c000; */
34 __init_end = .; !! 33
35 !! 34 /* Set the vaddr for the text segment to a value
36 . = ALIGN(_PAGE_SIZE); !! 35 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
37 _stext = .; !! 36 * >= 0xa800 0000 0030 0000 otherwise
38 .text : AT(ADDR(.text)) { !! 37 */
39 _text = .; !! 38
>> 39 /* . = 0xa800000000300000; */
>> 40 . = 0xffffffff80300000;
>> 41 #endif
>> 42 . = VMLINUX_LOAD_ADDRESS;
>> 43 /* read-only */
>> 44 _text = .; /* Text and read-only data */
>> 45 .text : {
40 TEXT_TEXT 46 TEXT_TEXT
41 IRQENTRY_TEXT <<
42 SOFTIRQENTRY_TEXT <<
43 SCHED_TEXT 47 SCHED_TEXT
44 LOCK_TEXT 48 LOCK_TEXT
45 KPROBES_TEXT 49 KPROBES_TEXT
>> 50 *(.text.*)
46 *(.fixup) 51 *(.fixup)
>> 52 *(.gnu.warning)
>> 53 } :text = 0
>> 54 _etext = .; /* End of text section */
>> 55
>> 56 EXCEPTION_TABLE(16)
>> 57
>> 58 /* Exception table for data bus errors */
>> 59 __dbe_table : {
>> 60 __start___dbe_table = .;
>> 61 *(__dbe_table)
>> 62 __stop___dbe_table = .;
47 } 63 }
48 _etext = .; <<
49 64
50 INIT_DATA_SECTION(PAGE_SIZE) !! 65 NOTES :text :note
>> 66 .dummy : { *(.dummy) } :text
51 67
52 _sdata = .; !! 68 RODATA
53 RW_DATA(32,PAGE_SIZE,_THREAD_S <<
54 RO_DATA(PAGE_SIZE) <<
55 _edata = .; <<
56 69
57 EXCEPTION_TABLE(16) !! 70 /* writeable */
>> 71 .data : { /* Data */
>> 72 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
>> 73
>> 74 INIT_TASK_DATA(THREAD_SIZE)
>> 75 NOSAVE_DATA
>> 76 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
>> 77 DATA_DATA
>> 78 CONSTRUCTORS
>> 79 }
>> 80 _gp = . + 0x8000;
>> 81 .lit8 : {
>> 82 *(.lit8)
>> 83 }
>> 84 .lit4 : {
>> 85 *(.lit4)
>> 86 }
>> 87 /* We want the small data sections together, so single-instruction offsets
>> 88 can access them all, and initialized data all before uninitialized, so
>> 89 we can shorten the on-disk segment size. */
>> 90 .sdata : {
>> 91 *(.sdata)
>> 92 }
>> 93 _edata = .; /* End of data section */
58 94
59 BSS_SECTION(_PAGE_SIZE, _PAGE_SIZE, _P !! 95 /* will be freed after init */
>> 96 . = ALIGN(PAGE_SIZE); /* Init code and data */
>> 97 __init_begin = .;
>> 98 INIT_TEXT_SECTION(PAGE_SIZE)
>> 99 INIT_DATA_SECTION(16)
60 100
61 _end = .; !! 101 /* .exit.text is discarded at runtime, not link time, to deal with
>> 102 * references from .rodata
>> 103 */
>> 104 .exit.text : {
>> 105 EXIT_TEXT
>> 106 }
>> 107 .exit.data : {
>> 108 EXIT_DATA
>> 109 }
>> 110
>> 111 PERCPU(PAGE_SIZE)
>> 112 . = ALIGN(PAGE_SIZE);
>> 113 __init_end = .;
>> 114 /* freed after init ends here */
>> 115
>> 116 BSS_SECTION(0, 0, 0)
>> 117
>> 118 _end = . ;
>> 119
>> 120 /* These mark the ABI of the kernel for debuggers. */
>> 121 .mdebug.abi32 : {
>> 122 KEEP(*(.mdebug.abi32))
>> 123 }
>> 124 .mdebug.abi64 : {
>> 125 KEEP(*(.mdebug.abi64))
>> 126 }
>> 127
>> 128 /* This is the MIPS specific mdebug section. */
>> 129 .mdebug : {
>> 130 *(.mdebug)
>> 131 }
62 132
63 STABS_DEBUG 133 STABS_DEBUG
64 DWARF_DEBUG 134 DWARF_DEBUG
65 ELF_DETAILS <<
66 .hexagon.attributes 0 : { *(.hexagon.a <<
67 135
>> 136 /* These must appear regardless of . */
>> 137 .gptab.sdata : {
>> 138 *(.gptab.data)
>> 139 *(.gptab.sdata)
>> 140 }
>> 141 .gptab.sbss : {
>> 142 *(.gptab.bss)
>> 143 *(.gptab.sbss)
>> 144 }
>> 145
>> 146 /* Sections to be discarded */
68 DISCARDS 147 DISCARDS
>> 148 /DISCARD/ : {
>> 149 /* ABI crap starts here */
>> 150 *(.MIPS.options)
>> 151 *(.options)
>> 152 *(.pdr)
>> 153 *(.reginfo)
>> 154 }
69 } 155 }
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