vmlinux.lds.h 8.8 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. . = ALIGN(8); \
  14. VMLINUX_SYMBOL(__start___markers) = .; \
  15. *(__markers) \
  16. VMLINUX_SYMBOL(__stop___markers) = .;
  17. #define RO_DATA(align) \
  18. . = ALIGN((align)); \
  19. .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
  20. VMLINUX_SYMBOL(__start_rodata) = .; \
  21. *(.rodata) *(.rodata.*) \
  22. *(__vermagic) /* Kernel version magic */ \
  23. *(__markers_strings) /* Markers: strings */ \
  24. } \
  25. \
  26. .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \
  27. *(.rodata1) \
  28. } \
  29. \
  30. /* PCI quirks */ \
  31. .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
  32. VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
  33. *(.pci_fixup_early) \
  34. VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
  35. VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
  36. *(.pci_fixup_header) \
  37. VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
  38. VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
  39. *(.pci_fixup_final) \
  40. VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
  41. VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
  42. *(.pci_fixup_enable) \
  43. VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
  44. VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
  45. *(.pci_fixup_resume) \
  46. VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
  47. } \
  48. \
  49. /* RapidIO route ops */ \
  50. .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
  51. VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
  52. *(.rio_route_ops) \
  53. VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
  54. } \
  55. \
  56. /* Kernel symbol table: Normal symbols */ \
  57. __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
  58. VMLINUX_SYMBOL(__start___ksymtab) = .; \
  59. *(__ksymtab) \
  60. VMLINUX_SYMBOL(__stop___ksymtab) = .; \
  61. } \
  62. \
  63. /* Kernel symbol table: GPL-only symbols */ \
  64. __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
  65. VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
  66. *(__ksymtab_gpl) \
  67. VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
  68. } \
  69. \
  70. /* Kernel symbol table: Normal unused symbols */ \
  71. __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
  72. VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
  73. *(__ksymtab_unused) \
  74. VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
  75. } \
  76. \
  77. /* Kernel symbol table: GPL-only unused symbols */ \
  78. __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
  79. VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
  80. *(__ksymtab_unused_gpl) \
  81. VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
  82. } \
  83. \
  84. /* Kernel symbol table: GPL-future-only symbols */ \
  85. __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
  86. VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
  87. *(__ksymtab_gpl_future) \
  88. VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
  89. } \
  90. \
  91. /* Kernel symbol table: Normal symbols */ \
  92. __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
  93. VMLINUX_SYMBOL(__start___kcrctab) = .; \
  94. *(__kcrctab) \
  95. VMLINUX_SYMBOL(__stop___kcrctab) = .; \
  96. } \
  97. \
  98. /* Kernel symbol table: GPL-only symbols */ \
  99. __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
  100. VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
  101. *(__kcrctab_gpl) \
  102. VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
  103. } \
  104. \
  105. /* Kernel symbol table: Normal unused symbols */ \
  106. __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
  107. VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
  108. *(__kcrctab_unused) \
  109. VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
  110. } \
  111. \
  112. /* Kernel symbol table: GPL-only unused symbols */ \
  113. __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
  114. VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
  115. *(__kcrctab_unused_gpl) \
  116. VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
  117. } \
  118. \
  119. /* Kernel symbol table: GPL-future-only symbols */ \
  120. __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
  121. VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
  122. *(__kcrctab_gpl_future) \
  123. VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
  124. } \
  125. \
  126. /* Kernel symbol table: strings */ \
  127. __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
  128. *(__ksymtab_strings) \
  129. } \
  130. \
  131. /* Built-in module parameters. */ \
  132. __param : AT(ADDR(__param) - LOAD_OFFSET) { \
  133. VMLINUX_SYMBOL(__start___param) = .; \
  134. *(__param) \
  135. VMLINUX_SYMBOL(__stop___param) = .; \
  136. VMLINUX_SYMBOL(__end_rodata) = .; \
  137. } \
  138. \
  139. . = ALIGN((align));
  140. /* RODATA provided for backward compatibility.
  141. * All archs are supposed to use RO_DATA() */
  142. #define RODATA RO_DATA(4096)
  143. #define SECURITY_INIT \
  144. .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
  145. VMLINUX_SYMBOL(__security_initcall_start) = .; \
  146. *(.security_initcall.init) \
  147. VMLINUX_SYMBOL(__security_initcall_end) = .; \
  148. }
  149. /* .text section. Map to function alignment to avoid address changes
  150. * during second ld run in second ld pass when generating System.map */
  151. #define TEXT_TEXT \
  152. ALIGN_FUNCTION(); \
  153. *(.text) \
  154. *(.text.init.refok) \
  155. *(.exit.text.refok)
  156. /* sched.text is aling to function alignment to secure we have same
  157. * address even at second ld pass when generating System.map */
  158. #define SCHED_TEXT \
  159. ALIGN_FUNCTION(); \
  160. VMLINUX_SYMBOL(__sched_text_start) = .; \
  161. *(.sched.text) \
  162. VMLINUX_SYMBOL(__sched_text_end) = .;
  163. /* spinlock.text is aling to function alignment to secure we have same
  164. * address even at second ld pass when generating System.map */
  165. #define LOCK_TEXT \
  166. ALIGN_FUNCTION(); \
  167. VMLINUX_SYMBOL(__lock_text_start) = .; \
  168. *(.spinlock.text) \
  169. VMLINUX_SYMBOL(__lock_text_end) = .;
  170. #define KPROBES_TEXT \
  171. ALIGN_FUNCTION(); \
  172. VMLINUX_SYMBOL(__kprobes_text_start) = .; \
  173. *(.kprobes.text) \
  174. VMLINUX_SYMBOL(__kprobes_text_end) = .;
  175. /* DWARF debug sections.
  176. Symbols in the DWARF debugging sections are relative to
  177. the beginning of the section so we begin them at 0. */
  178. #define DWARF_DEBUG \
  179. /* DWARF 1 */ \
  180. .debug 0 : { *(.debug) } \
  181. .line 0 : { *(.line) } \
  182. /* GNU DWARF 1 extensions */ \
  183. .debug_srcinfo 0 : { *(.debug_srcinfo) } \
  184. .debug_sfnames 0 : { *(.debug_sfnames) } \
  185. /* DWARF 1.1 and DWARF 2 */ \
  186. .debug_aranges 0 : { *(.debug_aranges) } \
  187. .debug_pubnames 0 : { *(.debug_pubnames) } \
  188. /* DWARF 2 */ \
  189. .debug_info 0 : { *(.debug_info \
  190. .gnu.linkonce.wi.*) } \
  191. .debug_abbrev 0 : { *(.debug_abbrev) } \
  192. .debug_line 0 : { *(.debug_line) } \
  193. .debug_frame 0 : { *(.debug_frame) } \
  194. .debug_str 0 : { *(.debug_str) } \
  195. .debug_loc 0 : { *(.debug_loc) } \
  196. .debug_macinfo 0 : { *(.debug_macinfo) } \
  197. /* SGI/MIPS DWARF 2 extensions */ \
  198. .debug_weaknames 0 : { *(.debug_weaknames) } \
  199. .debug_funcnames 0 : { *(.debug_funcnames) } \
  200. .debug_typenames 0 : { *(.debug_typenames) } \
  201. .debug_varnames 0 : { *(.debug_varnames) } \
  202. /* Stabs debugging sections. */
  203. #define STABS_DEBUG \
  204. .stab 0 : { *(.stab) } \
  205. .stabstr 0 : { *(.stabstr) } \
  206. .stab.excl 0 : { *(.stab.excl) } \
  207. .stab.exclstr 0 : { *(.stab.exclstr) } \
  208. .stab.index 0 : { *(.stab.index) } \
  209. .stab.indexstr 0 : { *(.stab.indexstr) } \
  210. .comment 0 : { *(.comment) }
  211. #define BUG_TABLE \
  212. . = ALIGN(8); \
  213. __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
  214. __start___bug_table = .; \
  215. *(__bug_table) \
  216. __stop___bug_table = .; \
  217. }
  218. #define NOTES \
  219. .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
  220. VMLINUX_SYMBOL(__start_notes) = .; \
  221. *(.note.*) \
  222. VMLINUX_SYMBOL(__stop_notes) = .; \
  223. }
  224. #define INITCALLS \
  225. *(.initcall0.init) \
  226. *(.initcall0s.init) \
  227. *(.initcall1.init) \
  228. *(.initcall1s.init) \
  229. *(.initcall2.init) \
  230. *(.initcall2s.init) \
  231. *(.initcall3.init) \
  232. *(.initcall3s.init) \
  233. *(.initcall4.init) \
  234. *(.initcall4s.init) \
  235. *(.initcall5.init) \
  236. *(.initcall5s.init) \
  237. *(.initcallrootfs.init) \
  238. *(.initcall6.init) \
  239. *(.initcall6s.init) \
  240. *(.initcall7.init) \
  241. *(.initcall7s.init)
  242. #define PERCPU(align) \
  243. . = ALIGN(align); \
  244. __per_cpu_start = .; \
  245. .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
  246. *(.data.percpu) \
  247. *(.data.percpu.shared_aligned) \
  248. } \
  249. __per_cpu_end = .;