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5191 | serge | 1 | /* ALPHA ELF support for BFD. |
2 | Copyright 1996, 1998, 2000, 2001, 2002, 2010 Free Software Foundation, Inc. |
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3 | |||
4 | By Eric Youngdale, |
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5 | for this platform. |
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6 | |||
7 | This file is part of BFD, the Binary File Descriptor library. |
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8 | |||
9 | This program is free software; you can redistribute it and/or modify |
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10 | it under the terms of the GNU General Public License as published by |
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11 | the Free Software Foundation; either version 3 of the License, or |
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12 | (at your option) any later version. |
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13 | |||
14 | This program is distributed in the hope that it will be useful, |
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15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | GNU General Public License for more details. |
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18 | |||
19 | You should have received a copy of the GNU General Public License |
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20 | along with this program; if not, write to the Free Software |
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21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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22 | MA 02110-1301, USA. */ |
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23 | |||
24 | /* This file holds definitions specific to the ALPHA ELF ABI. Note |
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25 | that most of this is not actually implemented by BFD. */ |
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26 | |||
27 | #ifndef _ELF_ALPHA_H |
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28 | #define _ELF_ALPHA_H |
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29 | |||
30 | /* Processor specific flags for the ELF header e_flags field. */ |
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31 | |||
32 | /* All addresses must be below 2GB. */ |
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33 | #define EF_ALPHA_32BIT 0x00000001 |
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34 | |||
35 | /* All relocations needed for relaxation with code movement are present. */ |
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36 | #define EF_ALPHA_CANRELAX 0x00000002 |
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37 | |||
38 | /* Processor specific section flags. */ |
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39 | |||
40 | /* This section must be in the global data area. */ |
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41 | #define SHF_ALPHA_GPREL 0x10000000 |
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42 | |||
43 | /* Section contains some sort of debugging information. The exact |
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44 | format is unspecified. It's probably ECOFF symbols. */ |
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45 | #define SHT_ALPHA_DEBUG 0x70000001 |
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46 | |||
47 | /* Section contains register usage information. */ |
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48 | #define SHT_ALPHA_REGINFO 0x70000002 |
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49 | |||
50 | /* A section of type SHT_MIPS_REGINFO contains the following |
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51 | structure. */ |
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52 | typedef struct |
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53 | { |
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54 | /* Mask of general purpose registers used. */ |
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55 | unsigned long ri_gprmask; |
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56 | /* Mask of co-processor registers used. */ |
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57 | unsigned long ri_cprmask[4]; |
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58 | /* GP register value for this object file. */ |
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59 | long ri_gp_value; |
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60 | } Elf64_RegInfo; |
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61 | |||
62 | /* Special values for the st_other field in the symbol table. */ |
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63 | |||
64 | #define STO_ALPHA_NOPV 0x80 |
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65 | #define STO_ALPHA_STD_GPLOAD 0x88 |
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66 | |||
67 | /* Special values for Elf64_Dyn tag. */ |
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68 | #define DT_ALPHA_PLTRO DT_LOPROC |
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69 | |||
70 | #include "elf/reloc-macros.h" |
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71 | |||
72 | /* Alpha relocs. */ |
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73 | START_RELOC_NUMBERS (elf_alpha_reloc_type) |
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74 | RELOC_NUMBER (R_ALPHA_NONE, 0) /* No reloc */ |
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75 | RELOC_NUMBER (R_ALPHA_REFLONG, 1) /* Direct 32 bit */ |
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76 | RELOC_NUMBER (R_ALPHA_REFQUAD, 2) /* Direct 64 bit */ |
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77 | RELOC_NUMBER (R_ALPHA_GPREL32, 3) /* GP relative 32 bit */ |
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78 | RELOC_NUMBER (R_ALPHA_LITERAL, 4) /* GP relative 16 bit w/optimization */ |
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79 | RELOC_NUMBER (R_ALPHA_LITUSE, 5) /* Optimization hint for LITERAL */ |
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80 | RELOC_NUMBER (R_ALPHA_GPDISP, 6) /* Add displacement to GP */ |
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81 | RELOC_NUMBER (R_ALPHA_BRADDR, 7) /* PC+4 relative 23 bit shifted */ |
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82 | RELOC_NUMBER (R_ALPHA_HINT, 8) /* PC+4 relative 16 bit shifted */ |
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83 | RELOC_NUMBER (R_ALPHA_SREL16, 9) /* PC relative 16 bit */ |
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84 | RELOC_NUMBER (R_ALPHA_SREL32, 10) /* PC relative 32 bit */ |
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85 | RELOC_NUMBER (R_ALPHA_SREL64, 11) /* PC relative 64 bit */ |
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86 | |||
87 | /* Skip 12 - 16; deprecated ECOFF relocs. */ |
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88 | |||
89 | RELOC_NUMBER (R_ALPHA_GPRELHIGH, 17) /* GP relative 32 bit, high 16 bits */ |
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90 | RELOC_NUMBER (R_ALPHA_GPRELLOW, 18) /* GP relative 32 bit, low 16 bits */ |
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91 | RELOC_NUMBER (R_ALPHA_GPREL16, 19) /* GP relative 16 bit */ |
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92 | |||
93 | /* Skip 20 - 23; deprecated ECOFF relocs. */ |
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94 | |||
95 | /* These relocations are specific to shared libraries. */ |
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96 | RELOC_NUMBER (R_ALPHA_COPY, 24) /* Copy symbol at runtime */ |
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97 | RELOC_NUMBER (R_ALPHA_GLOB_DAT, 25) /* Create GOT entry */ |
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98 | RELOC_NUMBER (R_ALPHA_JMP_SLOT, 26) /* Create PLT entry */ |
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99 | RELOC_NUMBER (R_ALPHA_RELATIVE, 27) /* Adjust by program base */ |
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100 | |||
101 | /* Like BRADDR, but assert that the source and target object file |
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102 | share the same GP value, and adjust the target address for |
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103 | STO_ALPHA_STD_GPLOAD. */ |
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104 | RELOC_NUMBER (R_ALPHA_BRSGP, 28) |
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105 | |||
106 | /* Thread-Local Storage. */ |
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107 | RELOC_NUMBER (R_ALPHA_TLSGD, 29) |
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108 | RELOC_NUMBER (R_ALPHA_TLSLDM, 30) |
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109 | RELOC_NUMBER (R_ALPHA_DTPMOD64, 31) |
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110 | RELOC_NUMBER (R_ALPHA_GOTDTPREL, 32) |
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111 | RELOC_NUMBER (R_ALPHA_DTPREL64, 33) |
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112 | RELOC_NUMBER (R_ALPHA_DTPRELHI, 34) |
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113 | RELOC_NUMBER (R_ALPHA_DTPRELLO, 35) |
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114 | RELOC_NUMBER (R_ALPHA_DTPREL16, 36) |
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115 | RELOC_NUMBER (R_ALPHA_GOTTPREL, 37) |
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116 | RELOC_NUMBER (R_ALPHA_TPREL64, 38) |
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117 | RELOC_NUMBER (R_ALPHA_TPRELHI, 39) |
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118 | RELOC_NUMBER (R_ALPHA_TPRELLO, 40) |
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119 | RELOC_NUMBER (R_ALPHA_TPREL16, 41) |
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120 | |||
121 | END_RELOC_NUMBERS (R_ALPHA_max) |
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122 | |||
123 | #define LITUSE_ALPHA_ADDR 0 |
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124 | #define LITUSE_ALPHA_BASE 1 |
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125 | #define LITUSE_ALPHA_BYTOFF 2 |
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126 | #define LITUSE_ALPHA_JSR 3 |
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127 | #define LITUSE_ALPHA_TLSGD 4 |
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128 | #define LITUSE_ALPHA_TLSLDM 5 |
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129 | #define LITUSE_ALPHA_JSRDIRECT 6 |
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130 | |||
131 | #endif /* _ELF_ALPHA_H */ |