1 /* ALPHA ELF support for BFD.
2 Copyright 1996, 1998, 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 /* Skip 12 - 16; deprecated ECOFF relocs. */
85 RELOC_NUMBER (R_ALPHA_GPRELHIGH, 17) /* GP relative 32 bit, high 16 bits */
86 RELOC_NUMBER (R_ALPHA_GPRELLOW, 18) /* GP relative 32 bit, low 16 bits */
87 RELOC_NUMBER (R_ALPHA_GPREL16, 19) /* GP relative 16 bit */
89 /* Skip 20 - 23; deprecated ECOFF relocs. */
91 /* These relocations are specific to shared libraries. */
92 RELOC_NUMBER (R_ALPHA_COPY, 24) /* Copy symbol at runtime */
93 RELOC_NUMBER (R_ALPHA_GLOB_DAT, 25) /* Create GOT entry */
94 RELOC_NUMBER (R_ALPHA_JMP_SLOT, 26) /* Create PLT entry */
95 RELOC_NUMBER (R_ALPHA_RELATIVE, 27) /* Adjust by program base */
97 /* Like BRADDR, but assert that the source and target object file
98 share the same GP value, and adjust the target address for
99 STO_ALPHA_STD_GPLOAD. */
100 RELOC_NUMBER (R_ALPHA_BRSGP, 28)
102 END_RELOC_NUMBERS (R_ALPHA_max)
104 #endif /* _ELF_ALPHA_H */