u-boot.lds 3.0 KB

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  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. #define RESET_VECTOR_ADDRESS 0xfffffffc
  25. #endif
  26. OUTPUT_ARCH(powerpc)
  27. PHDRS
  28. {
  29. text PT_LOAD;
  30. bss PT_LOAD;
  31. }
  32. SECTIONS
  33. {
  34. /* Read-only sections, merged into text segment: */
  35. . = + SIZEOF_HEADERS;
  36. .text :
  37. {
  38. *(.text*)
  39. } :text
  40. _etext = .;
  41. PROVIDE (etext = .);
  42. .rodata :
  43. {
  44. *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
  45. } :text
  46. /* Read-write section, merged into data segment: */
  47. . = (. + 0x00FF) & 0xFFFFFF00;
  48. _erotext = .;
  49. PROVIDE (erotext = .);
  50. .reloc :
  51. {
  52. _GOT2_TABLE_ = .;
  53. KEEP(*(.got2))
  54. KEEP(*(.got))
  55. PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
  56. _FIXUP_TABLE_ = .;
  57. KEEP(*(.fixup))
  58. }
  59. __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
  60. __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
  61. .data :
  62. {
  63. *(.data*)
  64. *(.sdata*)
  65. }
  66. _edata = .;
  67. PROVIDE (edata = .);
  68. . = .;
  69. . = ALIGN(4);
  70. .u_boot_list : {
  71. KEEP(*(SORT(.u_boot_list*)));
  72. }
  73. . = .;
  74. __start___ex_table = .;
  75. __ex_table : { *(__ex_table) }
  76. __stop___ex_table = .;
  77. . = ALIGN(256);
  78. __init_begin = .;
  79. .text.init : { *(.text.init) }
  80. .data.init : { *(.data.init) }
  81. . = ALIGN(256);
  82. __init_end = .;
  83. ppcenv_assert = ASSERT(. < 0xFFFF8000, ".bss section too big, overlaps .ppcenv section. Please update your confguration: CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_LEN and CONFIG_SYS_TEXT_BASE may need to be modified.");
  84. . = 0xFFFF8000;
  85. .ppcenv :
  86. {
  87. common/env_embedded.o(.ppcenv);
  88. }
  89. .resetvec RESET_VECTOR_ADDRESS :
  90. {
  91. KEEP(*(.resetvec))
  92. } :text = 0xffff
  93. . = RESET_VECTOR_ADDRESS + 0x4;
  94. /*
  95. * Make sure that the bss segment isn't linked at 0x0, otherwise its
  96. * address won't be updated during relocation fixups. Note that
  97. * this is a temporary fix. Code to dynamically the fixup the bss
  98. * location will be added in the future. When the bss relocation
  99. * fixup code is present this workaround should be removed.
  100. */
  101. #if (RESET_VECTOR_ADDRESS == 0xfffffffc)
  102. . |= 0x10;
  103. #endif
  104. __bss_start = .;
  105. .bss (NOLOAD) :
  106. {
  107. *(.bss*)
  108. *(.sbss*)
  109. *(COMMON)
  110. } :bss
  111. . = ALIGN(4);
  112. __bss_end = . ;
  113. PROVIDE (end = .);
  114. }