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252b5132 | 1 | /* ALPHA ELF support for BFD. |
c3aa17e9 | 2 | Copyright 1996, 1998, 2000, 2001, 2002 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | By Eric Youngdale, <eric@aib.com>. No processor supplement available | |
5 | for this platform. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
e172dbf8 | 21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 RH |
22 | |
23 | /* This file holds definitions specific to the ALPHA ELF ABI. Note | |
24 | that most of this is not actually implemented by BFD. */ | |
25 | ||
26 | #ifndef _ELF_ALPHA_H | |
27 | #define _ELF_ALPHA_H | |
28 | ||
29 | /* Processor specific flags for the ELF header e_flags field. */ | |
30 | ||
31 | /* All addresses must be below 2GB. */ | |
32 | #define EF_ALPHA_32BIT 0x00000001 | |
33 | ||
34 | /* All relocations needed for relaxation with code movement are present. */ | |
35 | #define EF_ALPHA_CANRELAX 0x00000002 | |
36 | ||
37 | /* Processor specific section flags. */ | |
38 | ||
39 | /* This section must be in the global data area. */ | |
40 | #define SHF_ALPHA_GPREL 0x10000000 | |
41 | ||
42 | /* Section contains some sort of debugging information. The exact | |
43 | format is unspecified. It's probably ECOFF symbols. */ | |
44 | #define SHT_ALPHA_DEBUG 0x70000001 | |
45 | ||
46 | /* Section contains register usage information. */ | |
47 | #define SHT_ALPHA_REGINFO 0x70000002 | |
48 | ||
49 | /* A section of type SHT_MIPS_REGINFO contains the following | |
50 | structure. */ | |
51 | typedef struct | |
52 | { | |
53 | /* Mask of general purpose registers used. */ | |
54 | unsigned long ri_gprmask; | |
55 | /* Mask of co-processor registers used. */ | |
56 | unsigned long ri_cprmask[4]; | |
57 | /* GP register value for this object file. */ | |
58 | long ri_gp_value; | |
59 | } Elf64_RegInfo; | |
60 | ||
61 | /* Special values for the st_other field in the symbol table. */ | |
62 | ||
63 | #define STO_ALPHA_NOPV 0x80 | |
64 | #define STO_ALPHA_STD_GPLOAD 0x88 | |
65 | ||
484124bb RH |
66 | /* Special values for Elf64_Dyn tag. */ |
67 | #define DT_ALPHA_PLTRO DT_LOPROC | |
68 | ||
252b5132 RH |
69 | #include "elf/reloc-macros.h" |
70 | ||
71 | /* Alpha relocs. */ | |
72 | START_RELOC_NUMBERS (elf_alpha_reloc_type) | |
73 | RELOC_NUMBER (R_ALPHA_NONE, 0) /* No reloc */ | |
74 | RELOC_NUMBER (R_ALPHA_REFLONG, 1) /* Direct 32 bit */ | |
75 | RELOC_NUMBER (R_ALPHA_REFQUAD, 2) /* Direct 64 bit */ | |
76 | RELOC_NUMBER (R_ALPHA_GPREL32, 3) /* GP relative 32 bit */ | |
77 | RELOC_NUMBER (R_ALPHA_LITERAL, 4) /* GP relative 16 bit w/optimization */ | |
78 | RELOC_NUMBER (R_ALPHA_LITUSE, 5) /* Optimization hint for LITERAL */ | |
79 | RELOC_NUMBER (R_ALPHA_GPDISP, 6) /* Add displacement to GP */ | |
80 | RELOC_NUMBER (R_ALPHA_BRADDR, 7) /* PC+4 relative 23 bit shifted */ | |
81 | RELOC_NUMBER (R_ALPHA_HINT, 8) /* PC+4 relative 16 bit shifted */ | |
82 | RELOC_NUMBER (R_ALPHA_SREL16, 9) /* PC relative 16 bit */ | |
83 | RELOC_NUMBER (R_ALPHA_SREL32, 10) /* PC relative 32 bit */ | |
84 | RELOC_NUMBER (R_ALPHA_SREL64, 11) /* PC relative 64 bit */ | |
85 | ||
e3883bf9 RH |
86 | /* Skip 12 - 16; deprecated ECOFF relocs. */ |
87 | ||
88 | RELOC_NUMBER (R_ALPHA_GPRELHIGH, 17) /* GP relative 32 bit, high 16 bits */ | |
89 | RELOC_NUMBER (R_ALPHA_GPRELLOW, 18) /* GP relative 32 bit, low 16 bits */ | |
90 | RELOC_NUMBER (R_ALPHA_GPREL16, 19) /* GP relative 16 bit */ | |
91 | ||
92 | /* Skip 20 - 23; deprecated ECOFF relocs. */ | |
93 | ||
94 | /* These relocations are specific to shared libraries. */ | |
252b5132 RH |
95 | RELOC_NUMBER (R_ALPHA_COPY, 24) /* Copy symbol at runtime */ |
96 | RELOC_NUMBER (R_ALPHA_GLOB_DAT, 25) /* Create GOT entry */ | |
97 | RELOC_NUMBER (R_ALPHA_JMP_SLOT, 26) /* Create PLT entry */ | |
98 | RELOC_NUMBER (R_ALPHA_RELATIVE, 27) /* Adjust by program base */ | |
99 | ||
77dd1030 RH |
100 | /* Like BRADDR, but assert that the source and target object file |
101 | share the same GP value, and adjust the target address for | |
102 | STO_ALPHA_STD_GPLOAD. */ | |
103 | RELOC_NUMBER (R_ALPHA_BRSGP, 28) | |
104 | ||
3765b1be RH |
105 | /* Thread-Local Storage. */ |
106 | RELOC_NUMBER (R_ALPHA_TLSGD, 29) | |
107 | RELOC_NUMBER (R_ALPHA_TLSLDM, 30) | |
108 | RELOC_NUMBER (R_ALPHA_DTPMOD64, 31) | |
109 | RELOC_NUMBER (R_ALPHA_GOTDTPREL, 32) | |
110 | RELOC_NUMBER (R_ALPHA_DTPREL64, 33) | |
111 | RELOC_NUMBER (R_ALPHA_DTPRELHI, 34) | |
112 | RELOC_NUMBER (R_ALPHA_DTPRELLO, 35) | |
113 | RELOC_NUMBER (R_ALPHA_DTPREL16, 36) | |
114 | RELOC_NUMBER (R_ALPHA_GOTTPREL, 37) | |
115 | RELOC_NUMBER (R_ALPHA_TPREL64, 38) | |
116 | RELOC_NUMBER (R_ALPHA_TPRELHI, 39) | |
117 | RELOC_NUMBER (R_ALPHA_TPRELLO, 40) | |
118 | RELOC_NUMBER (R_ALPHA_TPREL16, 41) | |
119 | ||
1b452ec6 | 120 | END_RELOC_NUMBERS (R_ALPHA_max) |
252b5132 | 121 | |
9e756d64 RH |
122 | #define LITUSE_ALPHA_ADDR 0 |
123 | #define LITUSE_ALPHA_BASE 1 | |
124 | #define LITUSE_ALPHA_BYTOFF 2 | |
125 | #define LITUSE_ALPHA_JSR 3 | |
126 | #define LITUSE_ALPHA_TLSGD 4 | |
127 | #define LITUSE_ALPHA_TLSLDM 5 | |
2acf634e | 128 | #define LITUSE_ALPHA_JSRDIRECT 6 |
9e756d64 | 129 | |
252b5132 | 130 | #endif /* _ELF_ALPHA_H */ |