vmlinux.lds.S 4.2 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. KPROBES_TEXT
  23. *(.fixup)
  24. *(.gnu.warning)
  25. } = 0x9090
  26. _etext = .; /* End of text section */
  27. . = ALIGN(16); /* Exception table */
  28. __start___ex_table = .;
  29. __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
  30. __stop___ex_table = .;
  31. RODATA
  32. /* writeable */
  33. .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
  34. *(.data)
  35. CONSTRUCTORS
  36. }
  37. . = ALIGN(4096);
  38. __nosave_begin = .;
  39. .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
  40. . = ALIGN(4096);
  41. __nosave_end = .;
  42. . = ALIGN(4096);
  43. .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
  44. *(.data.idt)
  45. }
  46. . = ALIGN(32);
  47. .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
  48. *(.data.cacheline_aligned)
  49. }
  50. /* rarely changed data like cpu maps */
  51. . = ALIGN(32);
  52. .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) }
  53. _edata = .; /* End of data section */
  54. . = ALIGN(THREAD_SIZE); /* init_task */
  55. .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
  56. *(.data.init_task)
  57. }
  58. /* might get freed after init */
  59. . = ALIGN(4096);
  60. __smp_alt_begin = .;
  61. __smp_alt_instructions = .;
  62. .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
  63. *(.smp_altinstructions)
  64. }
  65. __smp_alt_instructions_end = .;
  66. . = ALIGN(4);
  67. __smp_locks = .;
  68. .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
  69. *(.smp_locks)
  70. }
  71. __smp_locks_end = .;
  72. .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
  73. *(.smp_altinstr_replacement)
  74. }
  75. . = ALIGN(4096);
  76. __smp_alt_end = .;
  77. /* will be freed after init */
  78. . = ALIGN(4096); /* Init code and data */
  79. __init_begin = .;
  80. .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
  81. _sinittext = .;
  82. *(.init.text)
  83. _einittext = .;
  84. }
  85. .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
  86. . = ALIGN(16);
  87. __setup_start = .;
  88. .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
  89. __setup_end = .;
  90. __initcall_start = .;
  91. .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
  92. *(.initcall1.init)
  93. *(.initcall2.init)
  94. *(.initcall3.init)
  95. *(.initcall4.init)
  96. *(.initcall5.init)
  97. *(.initcall6.init)
  98. *(.initcall7.init)
  99. }
  100. __initcall_end = .;
  101. __con_initcall_start = .;
  102. .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
  103. *(.con_initcall.init)
  104. }
  105. __con_initcall_end = .;
  106. SECURITY_INIT
  107. . = ALIGN(4);
  108. __alt_instructions = .;
  109. .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
  110. *(.altinstructions)
  111. }
  112. __alt_instructions_end = .;
  113. .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
  114. *(.altinstr_replacement)
  115. }
  116. /* .exit.text is discard at runtime, not link time, to deal with references
  117. from .altinstructions and .eh_frame */
  118. .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
  119. .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
  120. . = ALIGN(4096);
  121. __initramfs_start = .;
  122. .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
  123. __initramfs_end = .;
  124. . = ALIGN(32);
  125. __per_cpu_start = .;
  126. .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
  127. __per_cpu_end = .;
  128. . = ALIGN(4096);
  129. __init_end = .;
  130. /* freed after init ends here */
  131. __bss_start = .; /* BSS */
  132. .bss.page_aligned : AT(ADDR(.bss.page_aligned) - LOAD_OFFSET) {
  133. *(.bss.page_aligned)
  134. }
  135. .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
  136. *(.bss)
  137. }
  138. . = ALIGN(4);
  139. __bss_stop = .;
  140. _end = . ;
  141. /* This is where the kernel creates the early boot page tables */
  142. . = ALIGN(4096);
  143. pg0 = .;
  144. /* Sections to be discarded */
  145. /DISCARD/ : {
  146. *(.exitcall.exit)
  147. }
  148. STABS_DEBUG
  149. DWARF_DEBUG
  150. }