vmlinux_32.lds.S 4.3 KB

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  1. SECTIONS
  2. {
  3. . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
  4. phys_startup_32 = startup_32 - LOAD_OFFSET;
  5. /* Text and read-only data */
  6. .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
  7. _text = .;
  8. *(.text.head)
  9. } :text = 0x9090
  10. /* read-only */
  11. .text : AT(ADDR(.text) - LOAD_OFFSET) {
  12. /* not really needed, already page aligned */
  13. . = ALIGN(PAGE_SIZE);
  14. *(.text.page_aligned)
  15. TEXT_TEXT
  16. SCHED_TEXT
  17. LOCK_TEXT
  18. KPROBES_TEXT
  19. IRQENTRY_TEXT
  20. *(.fixup)
  21. *(.gnu.warning)
  22. /* End of text section */
  23. _etext = .;
  24. } :text = 0x9090
  25. NOTES :text :note
  26. /* Exception table */
  27. . = ALIGN(16);
  28. __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
  29. __start___ex_table = .;
  30. *(__ex_table)
  31. __stop___ex_table = .;
  32. } :text = 0x9090
  33. RODATA
  34. /* writeable */
  35. . = ALIGN(PAGE_SIZE);
  36. /* Data */
  37. .data : AT(ADDR(.data) - LOAD_OFFSET) {
  38. DATA_DATA
  39. CONSTRUCTORS
  40. } :data
  41. . = ALIGN(PAGE_SIZE);
  42. .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
  43. __nosave_begin = .;
  44. *(.data.nosave)
  45. . = ALIGN(PAGE_SIZE);
  46. __nosave_end = .;
  47. }
  48. . = ALIGN(PAGE_SIZE);
  49. .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
  50. *(.data.page_aligned)
  51. *(.data.idt)
  52. }
  53. . = ALIGN(32);
  54. .data.cacheline_aligned :
  55. AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
  56. *(.data.cacheline_aligned)
  57. }
  58. /* rarely changed data like cpu maps */
  59. . = ALIGN(32);
  60. .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
  61. *(.data.read_mostly)
  62. /* End of data section */
  63. _edata = .;
  64. }
  65. /* init_task */
  66. . = ALIGN(THREAD_SIZE);
  67. .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
  68. *(.data.init_task)
  69. }
  70. . = ALIGN(PAGE_SIZE);
  71. .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
  72. /* might get freed after init */
  73. __smp_locks = .;
  74. *(.smp_locks)
  75. __smp_locks_end = .;
  76. }
  77. /* will be freed after init
  78. * Following ALIGN() is required to make sure no other data falls on the
  79. * same page where __smp_alt_end is pointing as that page might be freed
  80. * after boot. Always make sure that ALIGN() directive is present after
  81. * the section which contains __smp_alt_end.
  82. */
  83. . = ALIGN(PAGE_SIZE);
  84. /* Init code and data - will be freed after init */
  85. . = ALIGN(PAGE_SIZE);
  86. .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
  87. __init_begin = .;
  88. _sinittext = .;
  89. INIT_TEXT
  90. _einittext = .;
  91. }
  92. .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
  93. INIT_DATA
  94. }
  95. . = ALIGN(16);
  96. .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
  97. __setup_start = .;
  98. *(.init.setup)
  99. __setup_end = .;
  100. }
  101. .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
  102. __initcall_start = .;
  103. INITCALLS
  104. __initcall_end = .;
  105. }
  106. .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
  107. __con_initcall_start = .;
  108. *(.con_initcall.init)
  109. __con_initcall_end = .;
  110. }
  111. .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
  112. __x86_cpu_dev_start = .;
  113. *(.x86_cpu_dev.init)
  114. __x86_cpu_dev_end = .;
  115. }
  116. SECURITY_INIT
  117. . = ALIGN(4);
  118. .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
  119. __alt_instructions = .;
  120. *(.altinstructions)
  121. __alt_instructions_end = .;
  122. }
  123. .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
  124. *(.altinstr_replacement)
  125. }
  126. . = ALIGN(4);
  127. .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {
  128. __parainstructions = .;
  129. *(.parainstructions)
  130. __parainstructions_end = .;
  131. }
  132. /*
  133. * .exit.text is discard at runtime, not link time, to deal with
  134. * references from .altinstructions and .eh_frame
  135. */
  136. .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
  137. EXIT_TEXT
  138. }
  139. .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
  140. EXIT_DATA
  141. }
  142. #if defined(CONFIG_BLK_DEV_INITRD)
  143. . = ALIGN(PAGE_SIZE);
  144. .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
  145. __initramfs_start = .;
  146. *(.init.ramfs)
  147. __initramfs_end = .;
  148. }
  149. #endif
  150. PERCPU(PAGE_SIZE)
  151. . = ALIGN(PAGE_SIZE);
  152. /* freed after init ends here */
  153. /* BSS */
  154. .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
  155. __init_end = .;
  156. __bss_start = .;
  157. *(.bss.page_aligned)
  158. *(.bss)
  159. . = ALIGN(4);
  160. __bss_stop = .;
  161. }
  162. .brk : AT(ADDR(.brk) - LOAD_OFFSET) {
  163. . = ALIGN(PAGE_SIZE);
  164. __brk_base = .;
  165. . += 64 * 1024; /* 64k alignment slop space */
  166. *(.brk_reservation) /* areas brk users have reserved */
  167. __brk_limit = .;
  168. }
  169. .end : AT(ADDR(.end) - LOAD_OFFSET) {
  170. _end = . ;
  171. }
  172. /* Sections to be discarded */
  173. /DISCARD/ : {
  174. *(.exitcall.exit)
  175. *(.discard)
  176. }
  177. STABS_DEBUG
  178. DWARF_DEBUG
  179. }