vmlinux.lds.h 7.3 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. #define RODATA \
  10. . = ALIGN(4096); \
  11. __start_rodata = .; \
  12. .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
  13. *(.rodata) *(.rodata.*) \
  14. *(__vermagic) /* Kernel version magic */ \
  15. } \
  16. \
  17. .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \
  18. *(.rodata1) \
  19. } \
  20. \
  21. /* PCI quirks */ \
  22. .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
  23. VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
  24. *(.pci_fixup_early) \
  25. VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
  26. VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
  27. *(.pci_fixup_header) \
  28. VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
  29. VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
  30. *(.pci_fixup_final) \
  31. VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
  32. VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
  33. *(.pci_fixup_enable) \
  34. VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
  35. } \
  36. \
  37. /* RapidIO route ops */ \
  38. .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
  39. VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
  40. *(.rio_route_ops) \
  41. VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
  42. } \
  43. \
  44. /* Kernel symbol table: Normal symbols */ \
  45. __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
  46. VMLINUX_SYMBOL(__start___ksymtab) = .; \
  47. *(__ksymtab) \
  48. VMLINUX_SYMBOL(__stop___ksymtab) = .; \
  49. } \
  50. \
  51. /* Kernel symbol table: GPL-only symbols */ \
  52. __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
  53. VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
  54. *(__ksymtab_gpl) \
  55. VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
  56. } \
  57. \
  58. /* Kernel symbol table: Normal unused symbols */ \
  59. __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
  60. VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
  61. *(__ksymtab_unused) \
  62. VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
  63. } \
  64. \
  65. /* Kernel symbol table: GPL-only unused symbols */ \
  66. __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
  67. VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
  68. *(__ksymtab_unused_gpl) \
  69. VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
  70. } \
  71. \
  72. /* Kernel symbol table: GPL-future-only symbols */ \
  73. __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
  74. VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
  75. *(__ksymtab_gpl_future) \
  76. VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
  77. } \
  78. \
  79. /* Kernel symbol table: Normal symbols */ \
  80. __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
  81. VMLINUX_SYMBOL(__start___kcrctab) = .; \
  82. *(__kcrctab) \
  83. VMLINUX_SYMBOL(__stop___kcrctab) = .; \
  84. } \
  85. \
  86. /* Kernel symbol table: GPL-only symbols */ \
  87. __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
  88. VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
  89. *(__kcrctab_gpl) \
  90. VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
  91. } \
  92. \
  93. /* Kernel symbol table: Normal unused symbols */ \
  94. __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
  95. VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
  96. *(__kcrctab_unused) \
  97. VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
  98. } \
  99. \
  100. /* Kernel symbol table: GPL-only unused symbols */ \
  101. __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
  102. VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
  103. *(__kcrctab_unused_gpl) \
  104. VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
  105. } \
  106. \
  107. /* Kernel symbol table: GPL-future-only symbols */ \
  108. __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
  109. VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
  110. *(__kcrctab_gpl_future) \
  111. VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
  112. } \
  113. \
  114. /* Kernel symbol table: strings */ \
  115. __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
  116. *(__ksymtab_strings) \
  117. } \
  118. \
  119. /* Built-in module parameters. */ \
  120. __param : AT(ADDR(__param) - LOAD_OFFSET) { \
  121. VMLINUX_SYMBOL(__start___param) = .; \
  122. *(__param) \
  123. VMLINUX_SYMBOL(__stop___param) = .; \
  124. } \
  125. \
  126. /* Unwind data binary search table */ \
  127. EH_FRAME_HDR \
  128. \
  129. __end_rodata = .; \
  130. . = ALIGN(4096);
  131. #define SECURITY_INIT \
  132. .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
  133. VMLINUX_SYMBOL(__security_initcall_start) = .; \
  134. *(.security_initcall.init) \
  135. VMLINUX_SYMBOL(__security_initcall_end) = .; \
  136. }
  137. /* sched.text is aling to function alignment to secure we have same
  138. * address even at second ld pass when generating System.map */
  139. #define SCHED_TEXT \
  140. ALIGN_FUNCTION(); \
  141. VMLINUX_SYMBOL(__sched_text_start) = .; \
  142. *(.sched.text) \
  143. VMLINUX_SYMBOL(__sched_text_end) = .;
  144. /* spinlock.text is aling to function alignment to secure we have same
  145. * address even at second ld pass when generating System.map */
  146. #define LOCK_TEXT \
  147. ALIGN_FUNCTION(); \
  148. VMLINUX_SYMBOL(__lock_text_start) = .; \
  149. *(.spinlock.text) \
  150. VMLINUX_SYMBOL(__lock_text_end) = .;
  151. #define KPROBES_TEXT \
  152. ALIGN_FUNCTION(); \
  153. VMLINUX_SYMBOL(__kprobes_text_start) = .; \
  154. *(.kprobes.text) \
  155. VMLINUX_SYMBOL(__kprobes_text_end) = .;
  156. #ifdef CONFIG_STACK_UNWIND
  157. /* Unwind data binary search table */
  158. #define EH_FRAME_HDR \
  159. .eh_frame_hdr : AT(ADDR(.eh_frame_hdr) - LOAD_OFFSET) { \
  160. VMLINUX_SYMBOL(__start_unwind_hdr) = .; \
  161. *(.eh_frame_hdr) \
  162. VMLINUX_SYMBOL(__end_unwind_hdr) = .; \
  163. }
  164. #else
  165. #define EH_FRAME_HDR
  166. #endif
  167. /* DWARF debug sections.
  168. Symbols in the DWARF debugging sections are relative to
  169. the beginning of the section so we begin them at 0. */
  170. #define DWARF_DEBUG \
  171. /* DWARF 1 */ \
  172. .debug 0 : { *(.debug) } \
  173. .line 0 : { *(.line) } \
  174. /* GNU DWARF 1 extensions */ \
  175. .debug_srcinfo 0 : { *(.debug_srcinfo) } \
  176. .debug_sfnames 0 : { *(.debug_sfnames) } \
  177. /* DWARF 1.1 and DWARF 2 */ \
  178. .debug_aranges 0 : { *(.debug_aranges) } \
  179. .debug_pubnames 0 : { *(.debug_pubnames) } \
  180. /* DWARF 2 */ \
  181. .debug_info 0 : { *(.debug_info \
  182. .gnu.linkonce.wi.*) } \
  183. .debug_abbrev 0 : { *(.debug_abbrev) } \
  184. .debug_line 0 : { *(.debug_line) } \
  185. .debug_frame 0 : { *(.debug_frame) } \
  186. .debug_str 0 : { *(.debug_str) } \
  187. .debug_loc 0 : { *(.debug_loc) } \
  188. .debug_macinfo 0 : { *(.debug_macinfo) } \
  189. /* SGI/MIPS DWARF 2 extensions */ \
  190. .debug_weaknames 0 : { *(.debug_weaknames) } \
  191. .debug_funcnames 0 : { *(.debug_funcnames) } \
  192. .debug_typenames 0 : { *(.debug_typenames) } \
  193. .debug_varnames 0 : { *(.debug_varnames) } \
  194. /* Stabs debugging sections. */
  195. #define STABS_DEBUG \
  196. .stab 0 : { *(.stab) } \
  197. .stabstr 0 : { *(.stabstr) } \
  198. .stab.excl 0 : { *(.stab.excl) } \
  199. .stab.exclstr 0 : { *(.stab.exclstr) } \
  200. .stab.index 0 : { *(.stab.index) } \
  201. .stab.indexstr 0 : { *(.stab.indexstr) } \
  202. .comment 0 : { *(.comment) }
  203. #define NOTES \
  204. .notes : { *(.note.*) } :note