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-rw-r--r--include/asm-mips/elf.h282
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diff --git a/include/asm-mips/elf.h b/include/asm-mips/elf.h
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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 */
6#ifndef _ASM_ELF_H
7#define _ASM_ELF_H
8
9#include <linux/config.h>
10
11/* ELF header e_flags defines. */
12/* MIPS architecture level. */
13#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
14#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
15#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
16#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
17#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
18#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */
19#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */
20
21/* The ABI of a file. */
22#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */
23#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */
24
25#define PT_MIPS_REGINFO 0x70000000
26#define PT_MIPS_RTPROC 0x70000001
27#define PT_MIPS_OPTIONS 0x70000002
28
29/* Flags in the e_flags field of the header */
30#define EF_MIPS_NOREORDER 0x00000001
31#define EF_MIPS_PIC 0x00000002
32#define EF_MIPS_CPIC 0x00000004
33#define EF_MIPS_ABI2 0x00000020
34#define EF_MIPS_OPTIONS_FIRST 0x00000080
35#define EF_MIPS_32BITMODE 0x00000100
36#define EF_MIPS_ABI 0x0000f000
37#define EF_MIPS_ARCH 0xf0000000
38
39#define DT_MIPS_RLD_VERSION 0x70000001
40#define DT_MIPS_TIME_STAMP 0x70000002
41#define DT_MIPS_ICHECKSUM 0x70000003
42#define DT_MIPS_IVERSION 0x70000004
43#define DT_MIPS_FLAGS 0x70000005
44 #define RHF_NONE 0x00000000
45 #define RHF_HARDWAY 0x00000001
46 #define RHF_NOTPOT 0x00000002
47 #define RHF_SGI_ONLY 0x00000010
48#define DT_MIPS_BASE_ADDRESS 0x70000006
49#define DT_MIPS_CONFLICT 0x70000008
50#define DT_MIPS_LIBLIST 0x70000009
51#define DT_MIPS_LOCAL_GOTNO 0x7000000a
52#define DT_MIPS_CONFLICTNO 0x7000000b
53#define DT_MIPS_LIBLISTNO 0x70000010
54#define DT_MIPS_SYMTABNO 0x70000011
55#define DT_MIPS_UNREFEXTNO 0x70000012
56#define DT_MIPS_GOTSYM 0x70000013
57#define DT_MIPS_HIPAGENO 0x70000014
58#define DT_MIPS_RLD_MAP 0x70000016
59
60#define R_MIPS_NONE 0
61#define R_MIPS_16 1
62#define R_MIPS_32 2
63#define R_MIPS_REL32 3
64#define R_MIPS_26 4
65#define R_MIPS_HI16 5
66#define R_MIPS_LO16 6
67#define R_MIPS_GPREL16 7
68#define R_MIPS_LITERAL 8
69#define R_MIPS_GOT16 9
70#define R_MIPS_PC16 10
71#define R_MIPS_CALL16 11
72#define R_MIPS_GPREL32 12
73/* The remaining relocs are defined on Irix, although they are not
74 in the MIPS ELF ABI. */
75#define R_MIPS_UNUSED1 13
76#define R_MIPS_UNUSED2 14
77#define R_MIPS_UNUSED3 15
78#define R_MIPS_SHIFT5 16
79#define R_MIPS_SHIFT6 17
80#define R_MIPS_64 18
81#define R_MIPS_GOT_DISP 19
82#define R_MIPS_GOT_PAGE 20
83#define R_MIPS_GOT_OFST 21
84/*
85 * The following two relocation types are specified in the MIPS ABI
86 * conformance guide version 1.2 but not yet in the psABI.
87 */
88#define R_MIPS_GOTHI16 22
89#define R_MIPS_GOTLO16 23
90#define R_MIPS_SUB 24
91#define R_MIPS_INSERT_A 25
92#define R_MIPS_INSERT_B 26
93#define R_MIPS_DELETE 27
94#define R_MIPS_HIGHER 28
95#define R_MIPS_HIGHEST 29
96/*
97 * The following two relocation types are specified in the MIPS ABI
98 * conformance guide version 1.2 but not yet in the psABI.
99 */
100#define R_MIPS_CALLHI16 30
101#define R_MIPS_CALLLO16 31
102/*
103 * This range is reserved for vendor specific relocations.
104 */
105#define R_MIPS_LOVENDOR 100
106#define R_MIPS_HIVENDOR 127
107
108#define SHN_MIPS_ACCOMON 0xff00
109
110#define SHT_MIPS_LIST 0x70000000
111#define SHT_MIPS_CONFLICT 0x70000002
112#define SHT_MIPS_GPTAB 0x70000003
113#define SHT_MIPS_UCODE 0x70000004
114
115#define SHF_MIPS_GPREL 0x10000000
116
117#ifndef ELF_ARCH
118/* ELF register definitions */
119#define ELF_NGREG 45
120#define ELF_NFPREG 33
121
122typedef unsigned long elf_greg_t;
123typedef elf_greg_t elf_gregset_t[ELF_NGREG];
124
125typedef double elf_fpreg_t;
126typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
127
128#ifdef CONFIG_MIPS32
129
130/*
131 * This is used to ensure we don't load something for the wrong architecture.
132 */
133#define elf_check_arch(hdr) \
134({ \
135 int __res = 1; \
136 struct elfhdr *__h = (hdr); \
137 \
138 if (__h->e_machine != EM_MIPS) \
139 __res = 0; \
140 if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
141 __res = 0; \
142 if ((__h->e_flags & EF_MIPS_ABI2) != 0) \
143 __res = 0; \
144 if (((__h->e_flags & EF_MIPS_ABI) != 0) && \
145 ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \
146 __res = 0; \
147 \
148 __res; \
149})
150
151/*
152 * These are used to set parameters in the core dumps.
153 */
154#define ELF_CLASS ELFCLASS32
155
156#endif /* CONFIG_MIPS32 */
157
158#ifdef CONFIG_MIPS64
159/*
160 * This is used to ensure we don't load something for the wrong architecture.
161 */
162#define elf_check_arch(hdr) \
163({ \
164 int __res = 1; \
165 struct elfhdr *__h = (hdr); \
166 \
167 if (__h->e_machine != EM_MIPS) \
168 __res = 0; \
169 if (__h->e_ident[EI_CLASS] != ELFCLASS64) \
170 __res = 0; \
171 \
172 __res; \
173})
174
175/*
176 * These are used to set parameters in the core dumps.
177 */
178#define ELF_CLASS ELFCLASS64
179
180#endif /* CONFIG_MIPS64 */
181
182/*
183 * These are used to set parameters in the core dumps.
184 */
185#ifdef __MIPSEB__
186#define ELF_DATA ELFDATA2MSB
187#elif __MIPSEL__
188#define ELF_DATA ELFDATA2LSB
189#endif
190#define ELF_ARCH EM_MIPS
191
192#endif /* !defined(ELF_ARCH) */
193
194#ifdef __KERNEL__
195
196#ifdef CONFIG_MIPS32
197
198#define SET_PERSONALITY(ex, ibcs2) \
199do { \
200 if (ibcs2) \
201 set_personality(PER_SVR4); \
202 set_personality(PER_LINUX); \
203} while (0)
204
205#endif /* CONFIG_MIPS32 */
206
207#ifdef CONFIG_MIPS64
208
209#define SET_PERSONALITY(ex, ibcs2) \
210do { current->thread.mflags &= ~MF_ABI_MASK; \
211 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \
212 if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \
213 ((ex).e_flags & EF_MIPS_ABI) == 0) \
214 current->thread.mflags |= MF_N32; \
215 else \
216 current->thread.mflags |= MF_O32; \
217 } else \
218 current->thread.mflags |= MF_N64; \
219 if (ibcs2) \
220 set_personality(PER_SVR4); \
221 else if (current->personality != PER_LINUX32) \
222 set_personality(PER_LINUX); \
223} while (0)
224
225#endif /* CONFIG_MIPS64 */
226
227extern void dump_regs(elf_greg_t *, struct pt_regs *regs);
228extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
229
230#define ELF_CORE_COPY_REGS(elf_regs, regs) \
231 dump_regs((elf_greg_t *)&(elf_regs), regs);
232#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \
233 dump_task_fpu(tsk, elf_fpregs)
234
235#endif /* __KERNEL__ */
236
237/* This one accepts IRIX binaries. */
238#define irix_elf_check_arch(hdr) ((hdr)->e_flags & RHF_SGI_ONLY)
239
240#define USE_ELF_CORE_DUMP
241#define ELF_EXEC_PAGESIZE PAGE_SIZE
242
243/* This yields a mask that user programs can use to figure out what
244 instruction set this cpu supports. This could be done in userspace,
245 but it's not easy, and we've already done it here. */
246
247#define ELF_HWCAP (0)
248
249/* This yields a string that ld.so will use to load implementation
250 specific libraries for optimization. This is more specific in
251 intent than poking at uname or /proc/cpuinfo.
252
253 For the moment, we have only optimizations for the Intel generations,
254 but that could change... */
255
256#define ELF_PLATFORM (NULL)
257
258/*
259 * See comments in asm-alpha/elf.h, this is the same thing
260 * on the MIPS.
261 */
262#define ELF_PLAT_INIT(_r, load_addr) do { \
263 _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
264 _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
265 _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
266 _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
267 _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
268 _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
269 _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
270 _r->regs[30] = _r->regs[31] = 0; \
271} while (0)
272
273/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
274 use of this is to invoke "./ld.so someprog" to test out a new version of
275 the loader. We need to make sure that it is out of the way of the program
276 that it will "exec", and that there is sufficient room for the brk. */
277
278#ifndef ELF_ET_DYN_BASE
279#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
280#endif
281
282#endif /* _ASM_ELF_H */
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