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