vmlinux.lds.S 4.5 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. #include <asm/cache.h>
  9. OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
  10. OUTPUT_ARCH(i386)
  11. ENTRY(phys_startup_32)
  12. jiffies = jiffies_64;
  13. SECTIONS
  14. {
  15. . = __KERNEL_START;
  16. phys_startup_32 = startup_32 - LOAD_OFFSET;
  17. /* read-only */
  18. _text = .; /* Text and read-only data */
  19. .text : AT(ADDR(.text) - LOAD_OFFSET) {
  20. *(.text)
  21. SCHED_TEXT
  22. LOCK_TEXT
  23. KPROBES_TEXT
  24. *(.fixup)
  25. *(.gnu.warning)
  26. } = 0x9090
  27. _etext = .; /* End of text section */
  28. . = ALIGN(16); /* Exception table */
  29. __start___ex_table = .;
  30. __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
  31. __stop___ex_table = .;
  32. RODATA
  33. . = ALIGN(4);
  34. __tracedata_start = .;
  35. .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
  36. *(.tracedata)
  37. }
  38. __tracedata_end = .;
  39. /* writeable */
  40. .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
  41. *(.data)
  42. CONSTRUCTORS
  43. }
  44. . = ALIGN(4096);
  45. __nosave_begin = .;
  46. .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
  47. . = ALIGN(4096);
  48. __nosave_end = .;
  49. . = ALIGN(4096);
  50. .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
  51. *(.data.idt)
  52. }
  53. . = ALIGN(32);
  54. .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
  55. *(.data.cacheline_aligned)
  56. }
  57. /* rarely changed data like cpu maps */
  58. . = ALIGN(32);
  59. .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) }
  60. _edata = .; /* End of data section */
  61. #ifdef CONFIG_STACK_UNWIND
  62. . = ALIGN(4);
  63. .eh_frame : AT(ADDR(.eh_frame) - LOAD_OFFSET) {
  64. __start_unwind = .;
  65. *(.eh_frame)
  66. __end_unwind = .;
  67. }
  68. #endif
  69. . = ALIGN(THREAD_SIZE); /* init_task */
  70. .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
  71. *(.data.init_task)
  72. }
  73. /* might get freed after init */
  74. . = ALIGN(4096);
  75. __smp_alt_begin = .;
  76. __smp_alt_instructions = .;
  77. .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
  78. *(.smp_altinstructions)
  79. }
  80. __smp_alt_instructions_end = .;
  81. . = ALIGN(4);
  82. __smp_locks = .;
  83. .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
  84. *(.smp_locks)
  85. }
  86. __smp_locks_end = .;
  87. .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
  88. *(.smp_altinstr_replacement)
  89. }
  90. . = ALIGN(4096);
  91. __smp_alt_end = .;
  92. /* will be freed after init */
  93. . = ALIGN(4096); /* Init code and data */
  94. __init_begin = .;
  95. .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
  96. _sinittext = .;
  97. *(.init.text)
  98. _einittext = .;
  99. }
  100. .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
  101. . = ALIGN(16);
  102. __setup_start = .;
  103. .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
  104. __setup_end = .;
  105. __initcall_start = .;
  106. .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
  107. *(.initcall1.init)
  108. *(.initcall2.init)
  109. *(.initcall3.init)
  110. *(.initcall4.init)
  111. *(.initcall5.init)
  112. *(.initcall6.init)
  113. *(.initcall7.init)
  114. }
  115. __initcall_end = .;
  116. __con_initcall_start = .;
  117. .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
  118. *(.con_initcall.init)
  119. }
  120. __con_initcall_end = .;
  121. SECURITY_INIT
  122. . = ALIGN(4);
  123. __alt_instructions = .;
  124. .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
  125. *(.altinstructions)
  126. }
  127. __alt_instructions_end = .;
  128. .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
  129. *(.altinstr_replacement)
  130. }
  131. /* .exit.text is discard at runtime, not link time, to deal with references
  132. from .altinstructions and .eh_frame */
  133. .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
  134. .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
  135. . = ALIGN(4096);
  136. __initramfs_start = .;
  137. .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
  138. __initramfs_end = .;
  139. . = ALIGN(L1_CACHE_BYTES);
  140. __per_cpu_start = .;
  141. .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
  142. __per_cpu_end = .;
  143. . = ALIGN(4096);
  144. __init_end = .;
  145. /* freed after init ends here */
  146. __bss_start = .; /* BSS */
  147. .bss.page_aligned : AT(ADDR(.bss.page_aligned) - LOAD_OFFSET) {
  148. *(.bss.page_aligned)
  149. }
  150. .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
  151. *(.bss)
  152. }
  153. . = ALIGN(4);
  154. __bss_stop = .;
  155. _end = . ;
  156. /* This is where the kernel creates the early boot page tables */
  157. . = ALIGN(4096);
  158. pg0 = .;
  159. /* Sections to be discarded */
  160. /DISCARD/ : {
  161. *(.exitcall.exit)
  162. }
  163. STABS_DEBUG
  164. DWARF_DEBUG
  165. }