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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup generic
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef ELF_DYN_H_
  36. #define ELF_DYN_H_
  37.  
  38. #include <arch/elf.h>
  39. #include <sys/types.h>
  40.  
  41. #include <elf.h>
  42. #include <arch/elf_dyn.h>
  43.  
  44. #define ELF32_R_SYM(i) ((i)>>8)
  45. #define ELF32_R_TYPE(i) ((unsigned char)(i))
  46.  
  47. struct elf32_dyn {
  48.     elf_sword d_tag;
  49.     union {
  50.         elf_word d_val;
  51.         elf32_addr d_ptr;
  52.     } d_un;
  53. };
  54.  
  55. struct elf32_rel {
  56.     elf32_addr r_offset;
  57.     elf_word r_info;
  58. };
  59.  
  60. struct elf32_rela {
  61.     elf32_addr r_offset;
  62.     elf_word r_info;
  63.     elf_sword r_addend;
  64. };
  65.  
  66. #ifdef __32_BITS__
  67. typedef struct elf32_dyn elf_dyn_t;
  68. typedef struct elf32_rel elf_rel_t;
  69. typedef struct elf32_rela elf_rela_t;
  70. #endif
  71.  
  72. /*
  73.  * Dynamic array tags
  74.  */
  75. #define DT_NULL     0
  76. #define DT_NEEDED   1
  77. #define DT_PLTRELSZ 2
  78. #define DT_PLTGOT   3
  79. #define DT_HASH     4
  80. #define DT_STRTAB   5
  81. #define DT_SYMTAB   6
  82. #define DT_RELA     7
  83. #define DT_RELASZ   8
  84. #define DT_RELAENT  9
  85. #define DT_STRSZ    10
  86. #define DT_SYMENT   11
  87. #define DT_INIT     12
  88. #define DT_FINI     13
  89. #define DT_SONAME   14
  90. #define DT_RPATH    15
  91. #define DT_SYMBOLIC 16
  92. #define DT_REL      17
  93. #define DT_RELSZ    18
  94. #define DT_RELENT   19
  95. #define DT_PLTREL   20
  96. #define DT_DEBUG    21
  97. #define DT_TEXTREL  22
  98. #define DT_JMPREL   23
  99. #define DT_BIND_NOW 24
  100. #define DT_LOPROC   0x70000000
  101. #define DT_HIPROC   0x7fffffff
  102.  
  103. /*
  104.  * Special section indexes
  105.  */
  106. #define SHN_UNDEF   0
  107. #define SHN_LORESERVE   0xff00
  108. #define SHN_LOPROC  0xff00
  109. #define SHN_HIPROC  0xff1f
  110. #define SHN_ABS     0xfff1
  111. #define SHN_COMMON  0xfff2
  112. #define SHN_HIRESERVE   0xffff
  113.  
  114. /*
  115.  * Special symbol table index
  116.  */
  117. #define STN_UNDEF   0
  118.  
  119. #endif
  120.  
  121. /** @}
  122.  */
  123.