vmlinux.lds.h 8.6 KB

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  1. #ifndef LOAD_OFFSET
  2. #define LOAD_OFFSET 0
  3. #endif
  4. #ifndef VMLINUX_SYMBOL
  5. #define VMLINUX_SYMBOL(_sym_) _sym_
  6. #endif
  7. /* Align . to a 8 byte boundary equals to maximum function alignment. */
  8. #define ALIGN_FUNCTION() . = ALIGN(8)
  9. /* .data section */
  10. #define DATA_DATA \
  11. *(.data) \
  12. *(.data.init.refok)
  13. #define RO_DATA(align) \
  14. . = ALIGN((align)); \
  15. .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
  16. VMLINUX_SYMBOL(__start_rodata) = .; \
  17. *(.rodata) *(.rodata.*) \
  18. *(__vermagic) /* Kernel version magic */ \
  19. } \
  20. \
  21. .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \
  22. *(.rodata1) \
  23. } \
  24. \
  25. /* PCI quirks */ \
  26. .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
  27. VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
  28. *(.pci_fixup_early) \
  29. VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
  30. VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
  31. *(.pci_fixup_header) \
  32. VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
  33. VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
  34. *(.pci_fixup_final) \
  35. VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
  36. VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
  37. *(.pci_fixup_enable) \
  38. VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
  39. VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
  40. *(.pci_fixup_resume) \
  41. VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
  42. } \
  43. \
  44. /* RapidIO route ops */ \
  45. .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
  46. VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
  47. *(.rio_route_ops) \
  48. VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
  49. } \
  50. \
  51. /* Kernel symbol table: Normal symbols */ \
  52. __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
  53. VMLINUX_SYMBOL(__start___ksymtab) = .; \
  54. *(__ksymtab) \
  55. VMLINUX_SYMBOL(__stop___ksymtab) = .; \
  56. } \
  57. \
  58. /* Kernel symbol table: GPL-only symbols */ \
  59. __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
  60. VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
  61. *(__ksymtab_gpl) \
  62. VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
  63. } \
  64. \
  65. /* Kernel symbol table: Normal unused symbols */ \
  66. __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
  67. VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
  68. *(__ksymtab_unused) \
  69. VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
  70. } \
  71. \
  72. /* Kernel symbol table: GPL-only unused symbols */ \
  73. __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
  74. VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
  75. *(__ksymtab_unused_gpl) \
  76. VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
  77. } \
  78. \
  79. /* Kernel symbol table: GPL-future-only symbols */ \
  80. __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
  81. VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
  82. *(__ksymtab_gpl_future) \
  83. VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
  84. } \
  85. \
  86. /* Kernel symbol table: Normal symbols */ \
  87. __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
  88. VMLINUX_SYMBOL(__start___kcrctab) = .; \
  89. *(__kcrctab) \
  90. VMLINUX_SYMBOL(__stop___kcrctab) = .; \
  91. } \
  92. \
  93. /* Kernel symbol table: GPL-only symbols */ \
  94. __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
  95. VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
  96. *(__kcrctab_gpl) \
  97. VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
  98. } \
  99. \
  100. /* Kernel symbol table: Normal unused symbols */ \
  101. __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
  102. VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
  103. *(__kcrctab_unused) \
  104. VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
  105. } \
  106. \
  107. /* Kernel symbol table: GPL-only unused symbols */ \
  108. __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
  109. VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
  110. *(__kcrctab_unused_gpl) \
  111. VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
  112. } \
  113. \
  114. /* Kernel symbol table: GPL-future-only symbols */ \
  115. __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
  116. VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
  117. *(__kcrctab_gpl_future) \
  118. VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
  119. } \
  120. \
  121. /* Kernel symbol table: strings */ \
  122. __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
  123. *(__ksymtab_strings) \
  124. } \
  125. \
  126. /* Built-in module parameters. */ \
  127. __param : AT(ADDR(__param) - LOAD_OFFSET) { \
  128. VMLINUX_SYMBOL(__start___param) = .; \
  129. *(__param) \
  130. VMLINUX_SYMBOL(__stop___param) = .; \
  131. VMLINUX_SYMBOL(__end_rodata) = .; \
  132. } \
  133. \
  134. . = ALIGN((align));
  135. /* RODATA provided for backward compatibility.
  136. * All archs are supposed to use RO_DATA() */
  137. #define RODATA RO_DATA(4096)
  138. #define SECURITY_INIT \
  139. .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
  140. VMLINUX_SYMBOL(__security_initcall_start) = .; \
  141. *(.security_initcall.init) \
  142. VMLINUX_SYMBOL(__security_initcall_end) = .; \
  143. }
  144. /* .text section. Map to function alignment to avoid address changes
  145. * during second ld run in second ld pass when generating System.map */
  146. #define TEXT_TEXT \
  147. ALIGN_FUNCTION(); \
  148. *(.text) \
  149. *(.text.init.refok) \
  150. *(.exit.text.refok)
  151. /* sched.text is aling to function alignment to secure we have same
  152. * address even at second ld pass when generating System.map */
  153. #define SCHED_TEXT \
  154. ALIGN_FUNCTION(); \
  155. VMLINUX_SYMBOL(__sched_text_start) = .; \
  156. *(.sched.text) \
  157. VMLINUX_SYMBOL(__sched_text_end) = .;
  158. /* spinlock.text is aling to function alignment to secure we have same
  159. * address even at second ld pass when generating System.map */
  160. #define LOCK_TEXT \
  161. ALIGN_FUNCTION(); \
  162. VMLINUX_SYMBOL(__lock_text_start) = .; \
  163. *(.spinlock.text) \
  164. VMLINUX_SYMBOL(__lock_text_end) = .;
  165. #define KPROBES_TEXT \
  166. ALIGN_FUNCTION(); \
  167. VMLINUX_SYMBOL(__kprobes_text_start) = .; \
  168. *(.kprobes.text) \
  169. VMLINUX_SYMBOL(__kprobes_text_end) = .;
  170. /* DWARF debug sections.
  171. Symbols in the DWARF debugging sections are relative to
  172. the beginning of the section so we begin them at 0. */
  173. #define DWARF_DEBUG \
  174. /* DWARF 1 */ \
  175. .debug 0 : { *(.debug) } \
  176. .line 0 : { *(.line) } \
  177. /* GNU DWARF 1 extensions */ \
  178. .debug_srcinfo 0 : { *(.debug_srcinfo) } \
  179. .debug_sfnames 0 : { *(.debug_sfnames) } \
  180. /* DWARF 1.1 and DWARF 2 */ \
  181. .debug_aranges 0 : { *(.debug_aranges) } \
  182. .debug_pubnames 0 : { *(.debug_pubnames) } \
  183. /* DWARF 2 */ \
  184. .debug_info 0 : { *(.debug_info \
  185. .gnu.linkonce.wi.*) } \
  186. .debug_abbrev 0 : { *(.debug_abbrev) } \
  187. .debug_line 0 : { *(.debug_line) } \
  188. .debug_frame 0 : { *(.debug_frame) } \
  189. .debug_str 0 : { *(.debug_str) } \
  190. .debug_loc 0 : { *(.debug_loc) } \
  191. .debug_macinfo 0 : { *(.debug_macinfo) } \
  192. /* SGI/MIPS DWARF 2 extensions */ \
  193. .debug_weaknames 0 : { *(.debug_weaknames) } \
  194. .debug_funcnames 0 : { *(.debug_funcnames) } \
  195. .debug_typenames 0 : { *(.debug_typenames) } \
  196. .debug_varnames 0 : { *(.debug_varnames) } \
  197. /* Stabs debugging sections. */
  198. #define STABS_DEBUG \
  199. .stab 0 : { *(.stab) } \
  200. .stabstr 0 : { *(.stabstr) } \
  201. .stab.excl 0 : { *(.stab.excl) } \
  202. .stab.exclstr 0 : { *(.stab.exclstr) } \
  203. .stab.index 0 : { *(.stab.index) } \
  204. .stab.indexstr 0 : { *(.stab.indexstr) } \
  205. .comment 0 : { *(.comment) }
  206. #define BUG_TABLE \
  207. . = ALIGN(8); \
  208. __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
  209. __start___bug_table = .; \
  210. *(__bug_table) \
  211. __stop___bug_table = .; \
  212. }
  213. #define NOTES \
  214. .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
  215. VMLINUX_SYMBOL(__start_notes) = .; \
  216. *(.note.*) \
  217. VMLINUX_SYMBOL(__stop_notes) = .; \
  218. }
  219. #define INITCALLS \
  220. *(.initcall0.init) \
  221. *(.initcall0s.init) \
  222. *(.initcall1.init) \
  223. *(.initcall1s.init) \
  224. *(.initcall2.init) \
  225. *(.initcall2s.init) \
  226. *(.initcall3.init) \
  227. *(.initcall3s.init) \
  228. *(.initcall4.init) \
  229. *(.initcall4s.init) \
  230. *(.initcall5.init) \
  231. *(.initcall5s.init) \
  232. *(.initcallrootfs.init) \
  233. *(.initcall6.init) \
  234. *(.initcall6s.init) \
  235. *(.initcall7.init) \
  236. *(.initcall7s.init)
  237. #define PERCPU(align) \
  238. . = ALIGN(align); \
  239. __per_cpu_start = .; \
  240. .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
  241. *(.data.percpu) \
  242. *(.data.percpu.shared_aligned) \
  243. } \
  244. __per_cpu_end = .;