Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
122 | typedef unsigned long elf_greg_t; | |
123 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
124 | ||
125 | typedef double elf_fpreg_t; | |
126 | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | |
127 | ||
875d43e7 | 128 | #ifdef CONFIG_32BIT |
1da177e4 LT |
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 | ||
875d43e7 | 156 | #endif /* CONFIG_32BIT */ |
1da177e4 | 157 | |
875d43e7 | 158 | #ifdef CONFIG_64BIT |
1da177e4 LT |
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 | ||
875d43e7 | 180 | #endif /* CONFIG_64BIT */ |
1da177e4 LT |
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 | ||
e50c0a8f RB |
196 | struct mips_abi; |
197 | ||
198 | extern struct mips_abi mips_abi; | |
199 | extern struct mips_abi mips_abi_32; | |
200 | extern struct mips_abi mips_abi_n32; | |
201 | ||
875d43e7 | 202 | #ifdef CONFIG_32BIT |
1da177e4 | 203 | |
e50c0a8f RB |
204 | #define SET_PERSONALITY(ex, ibcs2) \ |
205 | do { \ | |
206 | if (ibcs2) \ | |
207 | set_personality(PER_SVR4); \ | |
208 | set_personality(PER_LINUX); \ | |
209 | \ | |
210 | current->thread.abi = &mips_abi; \ | |
1da177e4 LT |
211 | } while (0) |
212 | ||
875d43e7 | 213 | #endif /* CONFIG_32BIT */ |
1da177e4 | 214 | |
875d43e7 | 215 | #ifdef CONFIG_64BIT |
1da177e4 | 216 | |
e50c0a8f RB |
217 | #ifdef CONFIG_MIPS32_N32 |
218 | #define __SET_PERSONALITY32_N32() \ | |
219 | do { \ | |
220 | current->thread.mflags |= MF_N32; \ | |
221 | current->thread.abi = &mips_abi_n32; \ | |
222 | } while (0) | |
223 | #else | |
224 | #define __SET_PERSONALITY32_N32() \ | |
225 | do { } while (0) | |
226 | #endif | |
227 | ||
228 | #ifdef CONFIG_MIPS32_O32 | |
229 | #define __SET_PERSONALITY32_O32() \ | |
230 | do { \ | |
231 | current->thread.mflags |= MF_O32; \ | |
232 | current->thread.abi = &mips_abi_32; \ | |
233 | } while (0) | |
234 | #else | |
235 | #define __SET_PERSONALITY32_O32() \ | |
236 | do { } while (0) | |
237 | #endif | |
238 | ||
239 | #ifdef CONFIG_MIPS32_COMPAT | |
240 | #define __SET_PERSONALITY32(ex) \ | |
241 | do { \ | |
242 | if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \ | |
243 | ((ex).e_flags & EF_MIPS_ABI) == 0) \ | |
244 | __SET_PERSONALITY32_N32(); \ | |
245 | else \ | |
246 | __SET_PERSONALITY32_O32(); \ | |
247 | } while (0) | |
248 | #else | |
249 | #define __SET_PERSONALITY32(ex) do { } while (0) | |
250 | #endif | |
251 | ||
252 | #define SET_PERSONALITY(ex, ibcs2) \ | |
253 | do { \ | |
254 | current->thread.mflags &= ~MF_ABI_MASK; \ | |
255 | if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ | |
256 | __SET_PERSONALITY32(ex); \ | |
257 | else { \ | |
258 | current->thread.mflags |= MF_N64; \ | |
259 | current->thread.abi = &mips_abi; \ | |
260 | } \ | |
261 | \ | |
262 | if (ibcs2) \ | |
263 | set_personality(PER_SVR4); \ | |
264 | else if (current->personality != PER_LINUX32) \ | |
265 | set_personality(PER_LINUX); \ | |
1da177e4 LT |
266 | } while (0) |
267 | ||
875d43e7 | 268 | #endif /* CONFIG_64BIT */ |
1da177e4 LT |
269 | |
270 | extern void dump_regs(elf_greg_t *, struct pt_regs *regs); | |
71e0e556 | 271 | extern int dump_task_regs (struct task_struct *, elf_gregset_t *); |
1da177e4 LT |
272 | extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); |
273 | ||
274 | #define ELF_CORE_COPY_REGS(elf_regs, regs) \ | |
275 | dump_regs((elf_greg_t *)&(elf_regs), regs); | |
71e0e556 | 276 | #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) |
1da177e4 LT |
277 | #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \ |
278 | dump_task_fpu(tsk, elf_fpregs) | |
279 | ||
280 | #endif /* __KERNEL__ */ | |
281 | ||
1da177e4 LT |
282 | #define USE_ELF_CORE_DUMP |
283 | #define ELF_EXEC_PAGESIZE PAGE_SIZE | |
284 | ||
285 | /* This yields a mask that user programs can use to figure out what | |
286 | instruction set this cpu supports. This could be done in userspace, | |
287 | but it's not easy, and we've already done it here. */ | |
288 | ||
289 | #define ELF_HWCAP (0) | |
290 | ||
291 | /* This yields a string that ld.so will use to load implementation | |
292 | specific libraries for optimization. This is more specific in | |
293 | intent than poking at uname or /proc/cpuinfo. | |
294 | ||
295 | For the moment, we have only optimizations for the Intel generations, | |
296 | but that could change... */ | |
297 | ||
298 | #define ELF_PLATFORM (NULL) | |
299 | ||
300 | /* | |
301 | * See comments in asm-alpha/elf.h, this is the same thing | |
302 | * on the MIPS. | |
303 | */ | |
304 | #define ELF_PLAT_INIT(_r, load_addr) do { \ | |
305 | _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \ | |
306 | _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \ | |
307 | _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \ | |
308 | _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \ | |
309 | _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \ | |
310 | _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \ | |
311 | _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \ | |
312 | _r->regs[30] = _r->regs[31] = 0; \ | |
313 | } while (0) | |
314 | ||
315 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
316 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
317 | the loader. We need to make sure that it is out of the way of the program | |
318 | that it will "exec", and that there is sufficient room for the brk. */ | |
319 | ||
320 | #ifndef ELF_ET_DYN_BASE | |
321 | #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) | |
322 | #endif | |
323 | ||
324 | #endif /* _ASM_ELF_H */ |