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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 
188 struct exec_package;
189 
190 int mips_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
191  vaddr_t *);
192 void coredump_elf32_setup(struct lwp *, void *);
193 
194 int mips_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *,
195  vaddr_t *);
196 void coredump_elf64_setup(struct lwp *, void *);
197 #endif /* _KERNEL */
198 
199 #endif /* _MIPS_ELF_MACHDEP_H_ */
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