1 /* ALPHA ELF support for BFD.
2 Copyright (C) 1996, 98, 2000 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 /* This file holds definitions specific to the ALPHA ELF ABI. Note
24 that most of this is not actually implemented by BFD. */
29 /* Processor specific flags for the ELF header e_flags field. */
31 /* All addresses must be below 2GB. */
32 #define EF_ALPHA_32BIT 0x00000001
34 /* All relocations needed for relaxation with code movement are present. */
35 #define EF_ALPHA_CANRELAX 0x00000002
37 /* Processor specific section flags. */
39 /* This section must be in the global data area. */
40 #define SHF_ALPHA_GPREL 0x10000000
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
46 /* Section contains register usage information. */
47 #define SHT_ALPHA_REGINFO 0x70000002
49 /* A section of type SHT_MIPS_REGINFO contains the following
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. */
61 /* Special values for the st_other field in the symbol table. */
63 #define STO_ALPHA_NOPV 0x80
64 #define STO_ALPHA_STD_GPLOAD 0x88
66 #include "elf/reloc-macros.h"
69 START_RELOC_NUMBERS (elf_alpha_reloc_type
)
70 RELOC_NUMBER (R_ALPHA_NONE
, 0) /* No reloc */
71 RELOC_NUMBER (R_ALPHA_REFLONG
, 1) /* Direct 32 bit */
72 RELOC_NUMBER (R_ALPHA_REFQUAD
, 2) /* Direct 64 bit */
73 RELOC_NUMBER (R_ALPHA_GPREL32
, 3) /* GP relative 32 bit */
74 RELOC_NUMBER (R_ALPHA_LITERAL
, 4) /* GP relative 16 bit w/optimization */
75 RELOC_NUMBER (R_ALPHA_LITUSE
, 5) /* Optimization hint for LITERAL */
76 RELOC_NUMBER (R_ALPHA_GPDISP
, 6) /* Add displacement to GP */
77 RELOC_NUMBER (R_ALPHA_BRADDR
, 7) /* PC+4 relative 23 bit shifted */
78 RELOC_NUMBER (R_ALPHA_HINT
, 8) /* PC+4 relative 16 bit shifted */
79 RELOC_NUMBER (R_ALPHA_SREL16
, 9) /* PC relative 16 bit */
80 RELOC_NUMBER (R_ALPHA_SREL32
, 10) /* PC relative 32 bit */
81 RELOC_NUMBER (R_ALPHA_SREL64
, 11) /* PC relative 64 bit */
83 /* Inherited these from ECOFF, but they are not particularly useful
84 and are depreciated. And not implemented in the BFD, btw. */
85 RELOC_NUMBER (R_ALPHA_OP_PUSH
, 12) /* OP stack push */
86 RELOC_NUMBER (R_ALPHA_OP_STORE
, 13) /* OP stack pop and store */
87 RELOC_NUMBER (R_ALPHA_OP_PSUB
, 14) /* OP stack subtract */
88 RELOC_NUMBER (R_ALPHA_OP_PRSHIFT
, 15) /* OP stack right shift */
90 RELOC_NUMBER (R_ALPHA_GPVALUE
, 16)
91 RELOC_NUMBER (R_ALPHA_GPRELHIGH
, 17)
92 RELOC_NUMBER (R_ALPHA_GPRELLOW
, 18)
93 RELOC_NUMBER (R_ALPHA_IMMED_GP_16
, 19)
94 RELOC_NUMBER (R_ALPHA_IMMED_GP_HI32
, 20)
95 RELOC_NUMBER (R_ALPHA_IMMED_SCN_HI32
, 21)
96 RELOC_NUMBER (R_ALPHA_IMMED_BR_HI32
, 22)
97 RELOC_NUMBER (R_ALPHA_IMMED_LO32
, 23)
99 /* These relocations are specific to shared libraries. */
100 RELOC_NUMBER (R_ALPHA_COPY
, 24) /* Copy symbol at runtime */
101 RELOC_NUMBER (R_ALPHA_GLOB_DAT
, 25) /* Create GOT entry */
102 RELOC_NUMBER (R_ALPHA_JMP_SLOT
, 26) /* Create PLT entry */
103 RELOC_NUMBER (R_ALPHA_RELATIVE
, 27) /* Adjust by program base */
105 END_RELOC_NUMBERS (R_ALPHA_max
)
107 #endif /* _ELF_ALPHA_H */
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