1 /* ALPHA ELF support for BFD.
2 Copyright 1996, 1998, 2000, 2001, 2002, 2010 Free Software Foundation, Inc.
4 By Eric Youngdale, <eric@aib.com>. No processor supplement available
7 This file is part of BFD, the Binary File Descriptor library.
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 3 of the License, or
12 (at your option) any later version.
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.
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
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 /* This file holds definitions specific to the ALPHA ELF ABI. Note
25 that most of this is not actually implemented by BFD. */
30 /* Processor specific flags for the ELF header e_flags field. */
32 /* All addresses must be below 2GB. */
33 #define EF_ALPHA_32BIT 0x00000001
35 /* All relocations needed for relaxation with code movement are present. */
36 #define EF_ALPHA_CANRELAX 0x00000002
38 /* Processor specific section flags. */
40 /* This section must be in the global data area. */
41 #define SHF_ALPHA_GPREL 0x10000000
43 /* Section contains some sort of debugging information. The exact
44 format is unspecified. It's probably ECOFF symbols. */
45 #define SHT_ALPHA_DEBUG 0x70000001
47 /* Section contains register usage information. */
48 #define SHT_ALPHA_REGINFO 0x70000002
50 /* A section of type SHT_MIPS_REGINFO contains the following
54 /* Mask of general purpose registers used. */
55 unsigned long ri_gprmask
;
56 /* Mask of co-processor registers used. */
57 unsigned long ri_cprmask
[4];
58 /* GP register value for this object file. */
62 /* Special values for the st_other field in the symbol table. */
64 #define STO_ALPHA_NOPV 0x80
65 #define STO_ALPHA_STD_GPLOAD 0x88
67 /* Special values for Elf64_Dyn tag. */
68 #define DT_ALPHA_PLTRO DT_LOPROC
70 #include "elf/reloc-macros.h"
73 START_RELOC_NUMBERS (elf_alpha_reloc_type
)
74 RELOC_NUMBER (R_ALPHA_NONE
, 0) /* No reloc */
75 RELOC_NUMBER (R_ALPHA_REFLONG
, 1) /* Direct 32 bit */
76 RELOC_NUMBER (R_ALPHA_REFQUAD
, 2) /* Direct 64 bit */
77 RELOC_NUMBER (R_ALPHA_GPREL32
, 3) /* GP relative 32 bit */
78 RELOC_NUMBER (R_ALPHA_LITERAL
, 4) /* GP relative 16 bit w/optimization */
79 RELOC_NUMBER (R_ALPHA_LITUSE
, 5) /* Optimization hint for LITERAL */
80 RELOC_NUMBER (R_ALPHA_GPDISP
, 6) /* Add displacement to GP */
81 RELOC_NUMBER (R_ALPHA_BRADDR
, 7) /* PC+4 relative 23 bit shifted */
82 RELOC_NUMBER (R_ALPHA_HINT
, 8) /* PC+4 relative 16 bit shifted */
83 RELOC_NUMBER (R_ALPHA_SREL16
, 9) /* PC relative 16 bit */
84 RELOC_NUMBER (R_ALPHA_SREL32
, 10) /* PC relative 32 bit */
85 RELOC_NUMBER (R_ALPHA_SREL64
, 11) /* PC relative 64 bit */
87 /* Skip 12 - 16; deprecated ECOFF relocs. */
89 RELOC_NUMBER (R_ALPHA_GPRELHIGH
, 17) /* GP relative 32 bit, high 16 bits */
90 RELOC_NUMBER (R_ALPHA_GPRELLOW
, 18) /* GP relative 32 bit, low 16 bits */
91 RELOC_NUMBER (R_ALPHA_GPREL16
, 19) /* GP relative 16 bit */
93 /* Skip 20 - 23; deprecated ECOFF relocs. */
95 /* These relocations are specific to shared libraries. */
96 RELOC_NUMBER (R_ALPHA_COPY
, 24) /* Copy symbol at runtime */
97 RELOC_NUMBER (R_ALPHA_GLOB_DAT
, 25) /* Create GOT entry */
98 RELOC_NUMBER (R_ALPHA_JMP_SLOT
, 26) /* Create PLT entry */
99 RELOC_NUMBER (R_ALPHA_RELATIVE
, 27) /* Adjust by program base */
101 /* Like BRADDR, but assert that the source and target object file
102 share the same GP value, and adjust the target address for
103 STO_ALPHA_STD_GPLOAD. */
104 RELOC_NUMBER (R_ALPHA_BRSGP
, 28)
106 /* Thread-Local Storage. */
107 RELOC_NUMBER (R_ALPHA_TLSGD
, 29)
108 RELOC_NUMBER (R_ALPHA_TLSLDM
, 30)
109 RELOC_NUMBER (R_ALPHA_DTPMOD64
, 31)
110 RELOC_NUMBER (R_ALPHA_GOTDTPREL
, 32)
111 RELOC_NUMBER (R_ALPHA_DTPREL64
, 33)
112 RELOC_NUMBER (R_ALPHA_DTPRELHI
, 34)
113 RELOC_NUMBER (R_ALPHA_DTPRELLO
, 35)
114 RELOC_NUMBER (R_ALPHA_DTPREL16
, 36)
115 RELOC_NUMBER (R_ALPHA_GOTTPREL
, 37)
116 RELOC_NUMBER (R_ALPHA_TPREL64
, 38)
117 RELOC_NUMBER (R_ALPHA_TPRELHI
, 39)
118 RELOC_NUMBER (R_ALPHA_TPRELLO
, 40)
119 RELOC_NUMBER (R_ALPHA_TPREL16
, 41)
121 END_RELOC_NUMBERS (R_ALPHA_max
)
123 #define LITUSE_ALPHA_ADDR 0
124 #define LITUSE_ALPHA_BASE 1
125 #define LITUSE_ALPHA_BYTOFF 2
126 #define LITUSE_ALPHA_JSR 3
127 #define LITUSE_ALPHA_TLSGD 4
128 #define LITUSE_ALPHA_TLSLDM 5
129 #define LITUSE_ALPHA_JSRDIRECT 6
131 #endif /* _ELF_ALPHA_H */
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