u-boot.lds 3.3 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149
  1. /*
  2. * Copyright 2007-2009 Freescale Semiconductor, Inc.
  3. *
  4. * See file CREDITS for list of people who contributed to this
  5. * project.
  6. *
  7. * This program is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU General Public License as
  9. * published by the Free Software Foundation; either version 2 of
  10. * the License, or (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20. * MA 02111-1307 USA
  21. */
  22. #include "config.h" /* CONFIG_BOARDDIR */
  23. #ifndef RESET_VECTOR_ADDRESS
  24. #ifdef CONFIG_RESET_VECTOR_ADDRESS
  25. #define RESET_VECTOR_ADDRESS CONFIG_RESET_VECTOR_ADDRESS
  26. #else
  27. #define RESET_VECTOR_ADDRESS 0xfffffffc
  28. #endif
  29. #endif
  30. OUTPUT_ARCH(powerpc)
  31. PHDRS
  32. {
  33. text PT_LOAD;
  34. bss PT_LOAD;
  35. }
  36. SECTIONS
  37. {
  38. /* Read-only sections, merged into text segment: */
  39. . = + SIZEOF_HEADERS;
  40. .text :
  41. {
  42. *(.text*)
  43. } :text
  44. _etext = .;
  45. PROVIDE (etext = .);
  46. .rodata :
  47. {
  48. *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
  49. } :text
  50. /* Read-write section, merged into data segment: */
  51. . = (. + 0x00FF) & 0xFFFFFF00;
  52. _erotext = .;
  53. PROVIDE (erotext = .);
  54. .reloc :
  55. {
  56. _GOT2_TABLE_ = .;
  57. KEEP(*(.got2))
  58. KEEP(*(.got))
  59. PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
  60. _FIXUP_TABLE_ = .;
  61. KEEP(*(.fixup))
  62. }
  63. __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
  64. __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
  65. .data :
  66. {
  67. *(.data*)
  68. *(.sdata*)
  69. }
  70. _edata = .;
  71. PROVIDE (edata = .);
  72. . = .;
  73. . = ALIGN(4);
  74. .u_boot_list : {
  75. KEEP(*(SORT(.u_boot_list*)));
  76. }
  77. . = .;
  78. __start___ex_table = .;
  79. __ex_table : { *(__ex_table) }
  80. __stop___ex_table = .;
  81. . = ALIGN(256);
  82. __init_begin = .;
  83. .text.init : { *(.text.init) }
  84. .data.init : { *(.data.init) }
  85. . = ALIGN(256);
  86. __init_end = .;
  87. #ifndef CONFIG_SPL
  88. #ifdef CONFIG_440
  89. .bootpg RESET_VECTOR_ADDRESS - 0xffc :
  90. {
  91. arch/powerpc/cpu/ppc4xx/start.o (.bootpg)
  92. /*
  93. * PPC440 board need a board specific object with the
  94. * TLB definitions. This needs to get included right after
  95. * start.o, since the first shadow TLB only covers 4k
  96. * of address space.
  97. */
  98. #ifdef CONFIG_INIT_TLB
  99. CONFIG_INIT_TLB (.bootpg)
  100. #else
  101. CONFIG_BOARDDIR/init.o (.bootpg)
  102. #endif
  103. } :text = 0xffff
  104. #endif
  105. .resetvec RESET_VECTOR_ADDRESS :
  106. {
  107. KEEP(*(.resetvec))
  108. } :text = 0xffff
  109. . = RESET_VECTOR_ADDRESS + 0x4;
  110. /*
  111. * Make sure that the bss segment isn't linked at 0x0, otherwise its
  112. * address won't be updated during relocation fixups. Note that
  113. * this is a temporary fix. Code to dynamically the fixup the bss
  114. * location will be added in the future. When the bss relocation
  115. * fixup code is present this workaround should be removed.
  116. */
  117. #if (RESET_VECTOR_ADDRESS == 0xfffffffc)
  118. . |= 0x10;
  119. #endif
  120. #endif /* CONFIG_SPL */
  121. __bss_start = .;
  122. .bss (NOLOAD) :
  123. {
  124. *(.bss*)
  125. *(.sbss*)
  126. *(COMMON)
  127. } :bss
  128. . = ALIGN(4);
  129. __bss_end = . ;
  130. PROVIDE (end = .);
  131. }