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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2/*
3 * OpenRISC Linux
4 *
5 * Linux architectural port borrowing liberally from similar works of
6 * others. All original copyrights apply as per the original source
7 * declaration.
8 *
9 * OpenRISC implementation:
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12 * et al.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 */
19
20#ifndef _UAPI__ASM_OPENRISC_ELF_H
21#define _UAPI__ASM_OPENRISC_ELF_H
22
23/*
24 * This files is partially exported to userspace. This allows us to keep
25 * the ELF bits in one place which should assist in keeping the kernel and
26 * userspace in sync.
27 */
28
29/*
30 * ELF register definitions..
31 */
32
33/* for struct user_regs_struct definition */
34#include <asm/ptrace.h>
35
36/* The OR1K relocation types... not all relevant for module loader */
37#define R_OR1K_NONE 0
38#define R_OR1K_32 1
39#define R_OR1K_16 2
40#define R_OR1K_8 3
41#define R_OR1K_LO_16_IN_INSN 4
42#define R_OR1K_HI_16_IN_INSN 5
43#define R_OR1K_INSN_REL_26 6
44#define R_OR1K_GNU_VTENTRY 7
45#define R_OR1K_GNU_VTINHERIT 8
46#define R_OR1K_32_PCREL 9
47#define R_OR1K_16_PCREL 10
48#define R_OR1K_8_PCREL 11
49#define R_OR1K_GOTPC_HI16 12
50#define R_OR1K_GOTPC_LO16 13
51#define R_OR1K_GOT16 14
52#define R_OR1K_PLT26 15
53#define R_OR1K_GOTOFF_HI16 16
54#define R_OR1K_GOTOFF_LO16 17
55#define R_OR1K_COPY 18
56#define R_OR1K_GLOB_DAT 19
57#define R_OR1K_JMP_SLOT 20
58#define R_OR1K_RELATIVE 21
59#define R_OR1K_TLS_GD_HI16 22
60#define R_OR1K_TLS_GD_LO16 23
61#define R_OR1K_TLS_LDM_HI16 24
62#define R_OR1K_TLS_LDM_LO16 25
63#define R_OR1K_TLS_LDO_HI16 26
64#define R_OR1K_TLS_LDO_LO16 27
65#define R_OR1K_TLS_IE_HI16 28
66#define R_OR1K_TLS_IE_LO16 29
67#define R_OR1K_TLS_LE_HI16 30
68#define R_OR1K_TLS_LE_LO16 31
69#define R_OR1K_TLS_TPOFF 32
70#define R_OR1K_TLS_DTPOFF 33
71#define R_OR1K_TLS_DTPMOD 34
72#define R_OR1K_AHI16 35
73#define R_OR1K_GOTOFF_AHI16 36
74#define R_OR1K_TLS_IE_AHI16 37
75#define R_OR1K_TLS_LE_AHI16 38
76#define R_OR1K_SLO16 39
77#define R_OR1K_GOTOFF_SLO16 40
78#define R_OR1K_TLS_LE_SLO16 41
79#define R_OR1K_PCREL_PG21 42
80#define R_OR1K_GOT_PG21 43
81#define R_OR1K_TLS_GD_PG21 44
82#define R_OR1K_TLS_LDM_PG21 45
83#define R_OR1K_TLS_IE_PG21 46
84#define R_OR1K_LO13 47
85#define R_OR1K_GOT_LO13 48
86#define R_OR1K_TLS_GD_LO13 49
87#define R_OR1K_TLS_LDM_LO13 50
88#define R_OR1K_TLS_IE_LO13 51
89#define R_OR1K_SLO13 52
90#define R_OR1K_PLTA26 53
91#define R_OR1K_GOT_AHI16 54
92
93/* Old relocation names */
94#define R_OR32_NONE R_OR1K_NONE
95#define R_OR32_32 R_OR1K_32
96#define R_OR32_16 R_OR1K_16
97#define R_OR32_8 R_OR1K_8
98#define R_OR32_CONST R_OR1K_LO_16_IN_INSN
99#define R_OR32_CONSTH R_OR1K_HI_16_IN_INSN
100#define R_OR32_JUMPTARG R_OR1K_INSN_REL_26
101#define R_OR32_VTENTRY R_OR1K_GNU_VTENTRY
102#define R_OR32_VTINHERIT R_OR1K_GNU_VTINHERIT
103
104typedef unsigned long elf_greg_t;
105
106/*
107 * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is
108 * thus exposed to user-space.
109 */
110#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
111typedef elf_greg_t elf_gregset_t[ELF_NGREG];
112
113typedef struct __or1k_fpu_state elf_fpregset_t;
114
115/* EM_OPENRISC is defined in linux/elf-em.h */
116#define EM_OR32 0x8472
117
118/*
119 * These are used to set parameters in the core dumps.
120 */
121#define ELF_ARCH EM_OR32
122#define ELF_CLASS ELFCLASS32
123#define ELF_DATA ELFDATA2MSB
124
125#endif /* _UAPI__ASM_OPENRISC_ELF_H */