vmlinux.lds.S 4.0 KB

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  1. /* ld script to make ARM Linux kernel
  2. * taken from the i386 version by Russell King
  3. * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
  4. */
  5. #include <asm-generic/vmlinux.lds.h>
  6. #include <asm/thread_info.h>
  7. #include <asm/memory.h>
  8. OUTPUT_ARCH(arm)
  9. ENTRY(stext)
  10. #ifndef __ARMEB__
  11. jiffies = jiffies_64;
  12. #else
  13. jiffies = jiffies_64 + 4;
  14. #endif
  15. SECTIONS
  16. {
  17. #ifdef CONFIG_XIP_KERNEL
  18. . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
  19. #else
  20. . = PAGE_OFFSET + TEXT_OFFSET;
  21. #endif
  22. .text.head : {
  23. _stext = .;
  24. _sinittext = .;
  25. *(.text.head)
  26. }
  27. .init : { /* Init code and data */
  28. INIT_TEXT
  29. _einittext = .;
  30. __proc_info_begin = .;
  31. *(.proc.info.init)
  32. __proc_info_end = .;
  33. __arch_info_begin = .;
  34. *(.arch.info.init)
  35. __arch_info_end = .;
  36. __tagtable_begin = .;
  37. *(.taglist.init)
  38. __tagtable_end = .;
  39. . = ALIGN(16);
  40. __setup_start = .;
  41. *(.init.setup)
  42. __setup_end = .;
  43. __early_begin = .;
  44. *(.early_param.init)
  45. __early_end = .;
  46. __initcall_start = .;
  47. INITCALLS
  48. __initcall_end = .;
  49. __con_initcall_start = .;
  50. *(.con_initcall.init)
  51. __con_initcall_end = .;
  52. __security_initcall_start = .;
  53. *(.security_initcall.init)
  54. __security_initcall_end = .;
  55. #ifdef CONFIG_BLK_DEV_INITRD
  56. . = ALIGN(32);
  57. __initramfs_start = .;
  58. usr/built-in.o(.init.ramfs)
  59. __initramfs_end = .;
  60. #endif
  61. . = ALIGN(4096);
  62. __per_cpu_load = .;
  63. __per_cpu_start = .;
  64. *(.data.percpu.page_aligned)
  65. *(.data.percpu)
  66. *(.data.percpu.shared_aligned)
  67. __per_cpu_end = .;
  68. #ifndef CONFIG_XIP_KERNEL
  69. __init_begin = _stext;
  70. INIT_DATA
  71. . = ALIGN(4096);
  72. __init_end = .;
  73. #endif
  74. }
  75. /DISCARD/ : { /* Exit code and data */
  76. EXIT_TEXT
  77. EXIT_DATA
  78. *(.exitcall.exit)
  79. *(.ARM.exidx.exit.text)
  80. *(.ARM.extab.exit.text)
  81. #ifndef CONFIG_MMU
  82. *(.fixup)
  83. *(__ex_table)
  84. #endif
  85. }
  86. .text : { /* Real text segment */
  87. _text = .; /* Text and read-only data */
  88. __exception_text_start = .;
  89. *(.exception.text)
  90. __exception_text_end = .;
  91. TEXT_TEXT
  92. SCHED_TEXT
  93. LOCK_TEXT
  94. KPROBES_TEXT
  95. #ifdef CONFIG_MMU
  96. *(.fixup)
  97. #endif
  98. *(.gnu.warning)
  99. *(.rodata)
  100. *(.rodata.*)
  101. *(.glue_7)
  102. *(.glue_7t)
  103. *(.got) /* Global offset table */
  104. }
  105. RODATA
  106. _etext = .; /* End of text and rodata section */
  107. #ifdef CONFIG_ARM_UNWIND
  108. /*
  109. * Stack unwinding tables
  110. */
  111. . = ALIGN(8);
  112. .ARM.unwind_idx : {
  113. __start_unwind_idx = .;
  114. *(.ARM.exidx*)
  115. __stop_unwind_idx = .;
  116. }
  117. .ARM.unwind_tab : {
  118. __start_unwind_tab = .;
  119. *(.ARM.extab*)
  120. __stop_unwind_tab = .;
  121. }
  122. #endif
  123. #ifdef CONFIG_XIP_KERNEL
  124. __data_loc = ALIGN(4); /* location in binary */
  125. . = PAGE_OFFSET + TEXT_OFFSET;
  126. #else
  127. . = ALIGN(THREAD_SIZE);
  128. __data_loc = .;
  129. #endif
  130. .data : AT(__data_loc) {
  131. _data = .; /* address in memory */
  132. /*
  133. * first, the init task union, aligned
  134. * to an 8192 byte boundary.
  135. */
  136. *(.data.init_task)
  137. #ifdef CONFIG_XIP_KERNEL
  138. . = ALIGN(4096);
  139. __init_begin = .;
  140. INIT_DATA
  141. . = ALIGN(4096);
  142. __init_end = .;
  143. #endif
  144. . = ALIGN(4096);
  145. __nosave_begin = .;
  146. *(.data.nosave)
  147. . = ALIGN(4096);
  148. __nosave_end = .;
  149. /*
  150. * then the cacheline aligned data
  151. */
  152. . = ALIGN(32);
  153. *(.data.cacheline_aligned)
  154. /*
  155. * The exception fixup table (might need resorting at runtime)
  156. */
  157. . = ALIGN(32);
  158. __start___ex_table = .;
  159. #ifdef CONFIG_MMU
  160. *(__ex_table)
  161. #endif
  162. __stop___ex_table = .;
  163. /*
  164. * and the usual data section
  165. */
  166. DATA_DATA
  167. CONSTRUCTORS
  168. _edata = .;
  169. }
  170. _edata_loc = __data_loc + SIZEOF(.data);
  171. .bss : {
  172. __bss_start = .; /* BSS */
  173. *(.bss)
  174. *(COMMON)
  175. _end = .;
  176. }
  177. /* Stabs debugging sections. */
  178. .stab 0 : { *(.stab) }
  179. .stabstr 0 : { *(.stabstr) }
  180. .stab.excl 0 : { *(.stab.excl) }
  181. .stab.exclstr 0 : { *(.stab.exclstr) }
  182. .stab.index 0 : { *(.stab.index) }
  183. .stab.indexstr 0 : { *(.stab.indexstr) }
  184. .comment 0 : { *(.comment) }
  185. }
  186. /*
  187. * These must never be empty
  188. * If you have to comment these two assert statements out, your
  189. * binutils is too old (for other reasons as well)
  190. */
  191. ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
  192. ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")