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e0001a05 NC |
1 | /* Xtensa ELF support for BFD. |
2 | Copyright 2003 Free Software Foundation, Inc. | |
3 | Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica. | |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* This file holds definitions specific to the Xtensa ELF ABI. */ | |
22 | ||
23 | #ifndef _ELF_XTENSA_H | |
24 | #define _ELF_XTENSA_H | |
25 | ||
26 | #include "elf/reloc-macros.h" | |
27 | ||
28 | /* Relocations. */ | |
29 | START_RELOC_NUMBERS (elf_xtensa_reloc_type) | |
30 | RELOC_NUMBER (R_XTENSA_NONE, 0) | |
31 | RELOC_NUMBER (R_XTENSA_32, 1) | |
32 | RELOC_NUMBER (R_XTENSA_RTLD, 2) | |
33 | RELOC_NUMBER (R_XTENSA_GLOB_DAT, 3) | |
34 | RELOC_NUMBER (R_XTENSA_JMP_SLOT, 4) | |
35 | RELOC_NUMBER (R_XTENSA_RELATIVE, 5) | |
36 | RELOC_NUMBER (R_XTENSA_PLT, 6) | |
37 | RELOC_NUMBER (R_XTENSA_OP0, 8) | |
38 | RELOC_NUMBER (R_XTENSA_OP1, 9) | |
39 | RELOC_NUMBER (R_XTENSA_OP2, 10) | |
40 | RELOC_NUMBER (R_XTENSA_ASM_EXPAND, 11) | |
41 | RELOC_NUMBER (R_XTENSA_ASM_SIMPLIFY, 12) | |
42 | RELOC_NUMBER (R_XTENSA_GNU_VTINHERIT, 15) | |
43 | RELOC_NUMBER (R_XTENSA_GNU_VTENTRY, 16) | |
44 | END_RELOC_NUMBERS (R_XTENSA_max) | |
45 | ||
46 | /* Processor-specific flags for the ELF header e_flags field. */ | |
47 | ||
48 | /* Four-bit Xtensa machine type field. */ | |
49 | #define EF_XTENSA_MACH 0x0000000f | |
50 | ||
51 | /* Various CPU types. */ | |
52 | #define E_XTENSA_MACH 0x00000000 | |
53 | ||
54 | /* Leave bits 0xf0 alone in case we ever have more than 16 cpu types. | |
55 | Highly unlikely, but what the heck. */ | |
56 | ||
57 | #define EF_XTENSA_XT_INSN 0x00000100 | |
58 | #define EF_XTENSA_XT_LIT 0x00000200 | |
59 | ||
60 | ||
61 | /* Processor-specific dynamic array tags. */ | |
62 | ||
63 | /* Offset of the table that records the GOT location(s). */ | |
64 | #define DT_XTENSA_GOT_LOC_OFF 0x70000000 | |
65 | ||
66 | /* Number of entries in the GOT location table. */ | |
67 | #define DT_XTENSA_GOT_LOC_SZ 0x70000001 | |
68 | ||
69 | ||
70 | /* Definitions for instruction and literal property tables. The | |
71 | instruction tables for ".gnu.linkonce.t.*" sections are placed in | |
72 | the following sections: | |
73 | ||
74 | instruction tables: .gnu.linkonce.x.* | |
75 | literal tables: .gnu.linkonce.p.* | |
76 | */ | |
77 | ||
78 | #define XTENSA_INSN_SEC_NAME ".xt.insn" | |
79 | #define XTENSA_LIT_SEC_NAME ".xt.lit" | |
80 | ||
81 | typedef struct property_table_entry_t | |
82 | { | |
83 | bfd_vma address; | |
84 | bfd_vma size; | |
85 | } property_table_entry; | |
86 | ||
87 | #endif /* _ELF_XTENSA_H */ |