vmlinux.lds.S 3.9 KB

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  1. /* ld script to make i386 Linux kernel
  2. * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
  3. */
  4. #define LOAD_OFFSET __PAGE_OFFSET
  5. #include <asm-generic/vmlinux.lds.h>
  6. #include <asm/thread_info.h>
  7. #include <asm/page.h>
  8. OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
  9. OUTPUT_ARCH(i386)
  10. ENTRY(phys_startup_32)
  11. jiffies = jiffies_64;
  12. SECTIONS
  13. {
  14. . = __KERNEL_START;
  15. phys_startup_32 = startup_32 - LOAD_OFFSET;
  16. /* read-only */
  17. _text = .; /* Text and read-only data */
  18. .text : AT(ADDR(.text) - LOAD_OFFSET) {
  19. *(.text)
  20. SCHED_TEXT
  21. LOCK_TEXT
  22. *(.fixup)
  23. *(.gnu.warning)
  24. } = 0x9090
  25. _etext = .; /* End of text section */
  26. . = ALIGN(16); /* Exception table */
  27. __start___ex_table = .;
  28. __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
  29. __stop___ex_table = .;
  30. RODATA
  31. /* writeable */
  32. .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
  33. *(.data)
  34. CONSTRUCTORS
  35. }
  36. . = ALIGN(4096);
  37. __nosave_begin = .;
  38. .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
  39. . = ALIGN(4096);
  40. __nosave_end = .;
  41. . = ALIGN(4096);
  42. .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
  43. *(.data.idt)
  44. }
  45. . = ALIGN(32);
  46. .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
  47. *(.data.cacheline_aligned)
  48. }
  49. /* rarely changed data like cpu maps */
  50. . = ALIGN(32);
  51. .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) }
  52. _edata = .; /* End of data section */
  53. . = ALIGN(THREAD_SIZE); /* init_task */
  54. .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
  55. *(.data.init_task)
  56. }
  57. /* will be freed after init */
  58. . = ALIGN(4096); /* Init code and data */
  59. __init_begin = .;
  60. .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
  61. _sinittext = .;
  62. *(.init.text)
  63. _einittext = .;
  64. }
  65. .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
  66. . = ALIGN(16);
  67. __setup_start = .;
  68. .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
  69. __setup_end = .;
  70. __initcall_start = .;
  71. .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
  72. *(.initcall1.init)
  73. *(.initcall2.init)
  74. *(.initcall3.init)
  75. *(.initcall4.init)
  76. *(.initcall5.init)
  77. *(.initcall6.init)
  78. *(.initcall7.init)
  79. }
  80. __initcall_end = .;
  81. __con_initcall_start = .;
  82. .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
  83. *(.con_initcall.init)
  84. }
  85. __con_initcall_end = .;
  86. SECURITY_INIT
  87. . = ALIGN(4);
  88. __alt_instructions = .;
  89. .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
  90. *(.altinstructions)
  91. }
  92. __alt_instructions_end = .;
  93. .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
  94. *(.altinstr_replacement)
  95. }
  96. /* .exit.text is discard at runtime, not link time, to deal with references
  97. from .altinstructions and .eh_frame */
  98. .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
  99. .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
  100. . = ALIGN(4096);
  101. __initramfs_start = .;
  102. .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
  103. __initramfs_end = .;
  104. . = ALIGN(32);
  105. __per_cpu_start = .;
  106. .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
  107. __per_cpu_end = .;
  108. . = ALIGN(4096);
  109. __init_end = .;
  110. /* freed after init ends here */
  111. __bss_start = .; /* BSS */
  112. .bss.page_aligned : AT(ADDR(.bss.page_aligned) - LOAD_OFFSET) {
  113. *(.bss.page_aligned)
  114. }
  115. .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
  116. *(.bss)
  117. }
  118. . = ALIGN(4);
  119. __bss_stop = .;
  120. _end = . ;
  121. /* This is where the kernel creates the early boot page tables */
  122. . = ALIGN(4096);
  123. pg0 = .;
  124. /* Sections to be discarded */
  125. /DISCARD/ : {
  126. *(.exitcall.exit)
  127. }
  128. /* Stabs debugging sections. */
  129. .stab 0 : { *(.stab) }
  130. .stabstr 0 : { *(.stabstr) }
  131. .stab.excl 0 : { *(.stab.excl) }
  132. .stab.exclstr 0 : { *(.stab.exclstr) }
  133. .stab.index 0 : { *(.stab.index) }
  134. .stab.indexstr 0 : { *(.stab.indexstr) }
  135. .comment 0 : { *(.comment) }
  136. }