RTEMS: cpukit/score/cpu/mips/include/machine/elf_machdep.h Source File

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elf_machdep.h
1/* $NetBSD: elf_machdep.h,v 1.15 2011/03/15 07:39:22 matt Exp $ */
2
3#ifndef _MIPS_ELF_MACHDEP_H_
4#define _MIPS_ELF_MACHDEP_H_
5
6#ifdef _LP64
7#define ARCH_ELFSIZE 64 /* MD native binary size */
8#else
9#define ARCH_ELFSIZE 32 /* MD native binary size */
10#endif
11
12#if ARCH_ELFSIZE == 32
13#define ELF32_MACHDEP_ID_CASES \
14 case EM_MIPS: \
15 break;
16
17#define ELF32_MACHDEP_ID EM_MIPS
18
19#elif ARCH_ELFSIZE == 64
20#define ELF64_MACHDEP_ID_CASES \
21 case EM_MIPS: \
22 break;
23
24#define ELF64_MACHDEP_ID EM_MIPS
25
26#endif
27
28
29/* mips relocs. */
30
31#define R_MIPS_NONE 0
32#define R_MIPS_16 1
33#define R_MIPS_32 2
34#define R_MIPS_REL32 3
35#define R_MIPS_REL R_MIPS_REL32
36#define R_MIPS_26 4
37#define R_MIPS_HI16 5 /* high 16 bits of symbol value */
38#define R_MIPS_LO16 6 /* low 16 bits of symbol value */
39#define R_MIPS_GPREL16 7 /* GP-relative reference */
40#define R_MIPS_LITERAL 8 /* Reference to literal section */
41#define R_MIPS_GOT16 9 /* Reference to global offset table */
42#define R_MIPS_GOT R_MIPS_GOT16
43#define R_MIPS_PC16 10 /* 16 bit PC relative reference */
44#define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */
45#define R_MIPS_CALL R_MIPS_CALL16
46#define R_MIPS_GPREL32 12
47
48/* 13, 14, 15 are not defined at this point. */
49#define R_MIPS_UNUSED1 13
50#define R_MIPS_UNUSED2 14
51#define R_MIPS_UNUSED3 15
52
53/*
54 * The remaining relocs are apparently part of the 64-bit Irix ELF ABI.
55 */
56#define R_MIPS_SHIFT5 16
57#define R_MIPS_SHIFT6 17
58
59#define R_MIPS_64 18
60#define R_MIPS_GOT_DISP 19
61#define R_MIPS_GOT_PAGE 20
62#define R_MIPS_GOT_OFST 21
63#define R_MIPS_GOT_HI16 22
64#define R_MIPS_GOT_LO16 23
65#define R_MIPS_SUB 24
66#define R_MIPS_INSERT_A 25
67#define R_MIPS_INSERT_B 26
68#define R_MIPS_DELETE 27
69#define R_MIPS_HIGHER 28
70#define R_MIPS_HIGHEST 29
71#define R_MIPS_CALL_HI16 30
72#define R_MIPS_CALL_LO16 31
73#define R_MIPS_SCN_DISP 32
74#define R_MIPS_REL16 33
75#define R_MIPS_ADD_IMMEDIATE 34
76#define R_MIPS_PJUMP 35
77#define R_MIPS_RELGOT 36
78#define R_MIPS_JALR 37
79/* TLS relocations */
80
81#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */
82#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */
83#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */
84#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */
85#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */
86#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */
87#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */
88#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */
89#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */
90#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */
91#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */
92#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */
93#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */
94
95#define R_MIPS_max 51
96
97#define R_TYPE(name) __CONCAT(R_MIPS_,name)
98
99#define R_MIPS16_min 100
100#define R_MIPS16_26 100
101#define R_MIPS16_GPREL 101
102#define R_MIPS16_GOT16 102
103#define R_MIPS16_CALL16 103
104#define R_MIPS16_HI16 104
105#define R_MIPS16_LO16 105
106#define R_MIPS16_max 106
107
108
109/* mips dynamic tags */
110
111#define DT_MIPS_RLD_VERSION 0x70000001
112#define DT_MIPS_TIME_STAMP 0x70000002
113#define DT_MIPS_ICHECKSUM 0x70000003
114#define DT_MIPS_IVERSION 0x70000004
115#define DT_MIPS_FLAGS 0x70000005
116#define DT_MIPS_BASE_ADDRESS 0x70000006
117#define DT_MIPS_CONFLICT 0x70000008
118#define DT_MIPS_LIBLIST 0x70000009
119#define DT_MIPS_CONFLICTNO 0x7000000b
120#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* number of local got ents */
121#define DT_MIPS_LIBLISTNO 0x70000010
122#define DT_MIPS_SYMTABNO 0x70000011 /* number of .dynsym entries */
123#define DT_MIPS_UNREFEXTNO 0x70000012
124#define DT_MIPS_GOTSYM 0x70000013 /* first dynamic sym in got */
125#define DT_MIPS_HIPAGENO 0x70000014
126#define DT_MIPS_RLD_MAP 0x70000016 /* address of loader map */
127
128/*
129 * ELF Flags
130 */
131#define EF_MIPS_PIC 0x00000002 /* Contains PIC code */
132#define EF_MIPS_CPIC 0x00000004 /* STD PIC calling sequence */
133#define EF_MIPS_ABI2 0x00000020 /* N32 */
134
135#define EF_MIPS_ARCH_ASE 0x0f000000 /* Architectural extensions */
136#define EF_MIPS_ARCH_MDMX 0x08000000 /* MDMX multimedia extension */
137#define EF_MIPS_ARCH_M16 0x04000000 /* MIPS-16 ISA extensions */
138
139#define EF_MIPS_ARCH 0xf0000000 /* Architecture field */
140#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code */
141#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code */
142#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code */
143#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code */
144#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code */
145#define EF_MIPS_ARCH_32 0x50000000 /* -mips32 code */
146#define EF_MIPS_ARCH_64 0x60000000 /* -mips64 code */
147#define EF_MIPS_ARCH_32R2 0x70000000 /* -mips32r2 code */
148#define EF_MIPS_ARCH_64R2 0x80000000 /* -mips64r2 code */
149
150#define EF_MIPS_ABI 0x0000f000
151#define EF_MIPS_ABI_O32 0x00001000
152#define EF_MIPS_ABI_O64 0x00002000
153#define EF_MIPS_ABI_EABI32 0x00003000
154#define EF_MIPS_ABI_EABI64 0x00004000
155
156#if defined(__MIPSEB__)
157#define ELF32_MACHDEP_ENDIANNESS ELFDATA2MSB
158#define ELF64_MACHDEP_ENDIANNESS ELFDATA2MSB
159#elif defined(__MIPSEL__)
160#define ELF32_MACHDEP_ENDIANNESS ELFDATA2LSB
161#define ELF64_MACHDEP_ENDIANNESS ELFDATA2LSB
162#elif !defined(HAVE_NBTOOL_CONFIG_H)
163#error neither __MIPSEL__ nor __MIPSEB__ are defined.
164#endif
165
166#ifdef _KERNEL
167#ifdef _KERNEL_OPT
168#include "opt_compat_netbsd.h"
169#endif
170#ifdef COMPAT_16
171/*
172 * Up to 1.6, the ELF dynamic loader (ld.elf_so) was not relocatable.
173 * Tell the kernel ELF exec code not to try relocating the interpreter
174 * for dynamically-linked ELF binaries.
175 */
176#define ELF_INTERP_NON_RELOCATABLE
177#endif /* COMPAT_16 */
178
179/*
180 * We need to be able to include the ELF header so we can pick out the
181 * ABI being used.
182 */
183#ifdef ELFSIZE
184#define ELF_MD_PROBE_FUNC ELFNAME2(mips_netbsd,probe)
185#define ELF_MD_COREDUMP_SETUP ELFNAME2(coredump,setup)
186#endif
187
188struct exec_package;
189
190int mips_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
191 vaddr_t *);
192void coredump_elf32_setup(struct lwp *, void *);
193
194int mips_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *,
195 vaddr_t *);
196void coredump_elf64_setup(struct lwp *, void *);
197#endif /* _KERNEL */
198
199#endif /* _MIPS_ELF_MACHDEP_H_ */