projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c2c3df3 CM |
1 | /* |
| 2 | * ld script to make ARM Linux kernel | |
| 3 | * taken from the i386 version by Russell King | |
| 4 | * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz> | |
| 5 | */ | |
| 6 | ||
| 7 | #include <asm-generic/vmlinux.lds.h> | |
| 8 | #include <asm/thread_info.h> | |
| 9 | #include <asm/memory.h> | |
| 10 | #include <asm/page.h> | |
| 11 | ||
| a2c1d73b MR |
12 | #include "image.h" |
| 13 | ||
| 07c802bd WD |
14 | /* .exit.text needed in case of alternative patching */ |
| 15 | #define ARM_EXIT_KEEP(x) x | |
| 16 | #define ARM_EXIT_DISCARD(x) | |
| 8c2c3df3 CM |
17 | |
| 18 | OUTPUT_ARCH(aarch64) | |
| af885f40 | 19 | ENTRY(_text) |
| 8c2c3df3 CM |
20 | |
| 21 | jiffies = jiffies_64; | |
| 22 | ||
| 2240bbb6 MZ |
23 | #define HYPERVISOR_TEXT \ |
| 24 | /* \ | |
| 25 | * Force the alignment to be compatible with \ | |
| 26 | * the vectors requirements \ | |
| 27 | */ \ | |
| 28 | . = ALIGN(2048); \ | |
| 29 | VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \ | |
| 30 | *(.hyp.idmap.text) \ | |
| 31 | VMLINUX_SYMBOL(__hyp_idmap_text_end) = .; \ | |
| 32 | VMLINUX_SYMBOL(__hyp_text_start) = .; \ | |
| 33 | *(.hyp.text) \ | |
| 34 | VMLINUX_SYMBOL(__hyp_text_end) = .; | |
| 35 | ||
| a352ea3e AB |
36 | /* |
| 37 | * The size of the PE/COFF section that covers the kernel image, which | |
| 38 | * runs from stext to _edata, must be a round multiple of the PE/COFF | |
| 39 | * FileAlignment, which we set to its minimum value of 0x200. 'stext' | |
| 40 | * itself is 4 KB aligned, so padding out _edata to a 0x200 aligned | |
| 41 | * boundary should be sufficient. | |
| 42 | */ | |
| 43 | PECOFF_FILE_ALIGNMENT = 0x200; | |
| 44 | ||
| 45 | #ifdef CONFIG_EFI | |
| 46 | #define PECOFF_EDATA_PADDING \ | |
| 47 | .pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); } | |
| 48 | #else | |
| 49 | #define PECOFF_EDATA_PADDING | |
| 50 | #endif | |
| 51 | ||
| 8c2c3df3 CM |
52 | SECTIONS |
| 53 | { | |
| 54 | /* | |
| 55 | * XXX: The linker does not define how output sections are | |
| 56 | * assigned to input sections when there are multiple statements | |
| 57 | * matching the same input section name. There is no documented | |
| 58 | * order of matching. | |
| 59 | */ | |
| 60 | /DISCARD/ : { | |
| 61 | ARM_EXIT_DISCARD(EXIT_TEXT) | |
| 62 | ARM_EXIT_DISCARD(EXIT_DATA) | |
| 63 | EXIT_CALL | |
| 64 | *(.discard) | |
| 65 | *(.discard.*) | |
| 66 | } | |
| 67 | ||
| 68 | . = PAGE_OFFSET + TEXT_OFFSET; | |
| 69 | ||
| 70 | .head.text : { | |
| 71 | _text = .; | |
| 72 | HEAD_TEXT | |
| 73 | } | |
| 74 | .text : { /* Real text segment */ | |
| 75 | _stext = .; /* Text and read-only data */ | |
| 8c2c3df3 CM |
76 | __exception_text_start = .; |
| 77 | *(.exception.text) | |
| 78 | __exception_text_end = .; | |
| 79 | IRQENTRY_TEXT | |
| 80 | TEXT_TEXT | |
| 81 | SCHED_TEXT | |
| 82 | LOCK_TEXT | |
| 2240bbb6 | 83 | HYPERVISOR_TEXT |
| 8c2c3df3 CM |
84 | *(.fixup) |
| 85 | *(.gnu.warning) | |
| 86 | . = ALIGN(16); | |
| 87 | *(.got) /* Global offset table */ | |
| 88 | } | |
| 89 | ||
| 90 | RO_DATA(PAGE_SIZE) | |
| adace895 | 91 | EXCEPTION_TABLE(8) |
| c80b7ee8 | 92 | NOTES |
| 8c2c3df3 CM |
93 | _etext = .; /* End of text and rodata section */ |
| 94 | ||
| 95 | . = ALIGN(PAGE_SIZE); | |
| 96 | __init_begin = .; | |
| 97 | ||
| 98 | INIT_TEXT_SECTION(8) | |
| 99 | .exit.text : { | |
| 100 | ARM_EXIT_KEEP(EXIT_TEXT) | |
| 101 | } | |
| 102 | . = ALIGN(16); | |
| 103 | .init.data : { | |
| 104 | INIT_DATA | |
| 105 | INIT_SETUP(16) | |
| 106 | INIT_CALLS | |
| 107 | CON_INITCALL | |
| 108 | SECURITY_INITCALL | |
| 109 | INIT_RAM_FS | |
| 110 | } | |
| 111 | .exit.data : { | |
| 112 | ARM_EXIT_KEEP(EXIT_DATA) | |
| 113 | } | |
| 114 | ||
| 115 | PERCPU_SECTION(64) | |
| 116 | ||
| 562c85ca | 117 | . = ALIGN(PAGE_SIZE); |
| 8c2c3df3 | 118 | __init_end = .; |
| 3c620626 | 119 | |
| e039ee4e AP |
120 | . = ALIGN(4); |
| 121 | .altinstructions : { | |
| 122 | __alt_instructions = .; | |
| 123 | *(.altinstructions) | |
| 124 | __alt_instructions_end = .; | |
| 125 | } | |
| 126 | .altinstr_replacement : { | |
| 127 | *(.altinstr_replacement) | |
| 128 | } | |
| 129 | ||
| 130 | . = ALIGN(PAGE_SIZE); | |
| 3c620626 | 131 | _data = .; |
| 3c620626 MS |
132 | _sdata = .; |
| 133 | RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE) | |
| a352ea3e | 134 | PECOFF_EDATA_PADDING |
| 3c620626 | 135 | _edata = .; |
| 8c2c3df3 | 136 | |
| 8c2c3df3 | 137 | BSS_SECTION(0, 0, 0) |
| bd00cd5f MR |
138 | |
| 139 | . = ALIGN(PAGE_SIZE); | |
| 140 | idmap_pg_dir = .; | |
| 141 | . += IDMAP_DIR_SIZE; | |
| 142 | swapper_pg_dir = .; | |
| 143 | . += SWAPPER_DIR_SIZE; | |
| 144 | ||
| 8c2c3df3 CM |
145 | _end = .; |
| 146 | ||
| 147 | STABS_DEBUG | |
| a2c1d73b MR |
148 | |
| 149 | HEAD_SYMBOLS | |
| 8c2c3df3 | 150 | } |
| 2240bbb6 MZ |
151 | |
| 152 | /* | |
| 153 | * The HYP init code can't be more than a page long. | |
| 154 | */ | |
| 155 | ASSERT(((__hyp_idmap_text_start + PAGE_SIZE) > __hyp_idmap_text_end), | |
| 156 | "HYP init code too big") | |
| da57a369 MR |
157 | |
| 158 | /* | |
| 159 | * If padding is applied before .head.text, virt<->phys conversions will fail. | |
| 160 | */ | |
| 161 | ASSERT(_text == (PAGE_OFFSET + TEXT_OFFSET), "HEAD is misaligned") |