1 /* $OpenBSD: exec_elf.h,v 1.43 2007/05/14 05:04:58 tedu Exp $ */
2 /*
3 * Copyright (c) 1995, 1996 Erik Theisen. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 * This is the ELF ABI header file
30 * formerly known as "elf_abi.h".
31 */
32
33 #ifndef _SYS_EXEC_ELF_H_
34 #define _SYS_EXEC_ELF_H_
35
36 #include <machine/_types.h>
37 #include <machine/exec.h>
38
39 typedef __uint8_t Elf_Byte;
40
41 typedef __uint32_t Elf32_Addr; /* Unsigned program address */
42 typedef __uint32_t Elf32_Off; /* Unsigned file offset */
43 typedef __int32_t Elf32_Sword; /* Signed large integer */
44 typedef __uint32_t Elf32_Word; /* Unsigned large integer */
45 typedef __uint16_t Elf32_Half; /* Unsigned medium integer */
46
47 typedef __uint64_t Elf64_Addr;
48 typedef __uint64_t Elf64_Off;
49 typedef __int32_t Elf64_Shalf;
50
51 #ifdef __alpha__
52 typedef __int64_t Elf64_Sword;
53 typedef __uint64_t Elf64_Word;
54 #else
55 typedef __int32_t Elf64_Sword;
56 typedef __uint32_t Elf64_Word;
57 #endif
58
59 typedef __int64_t Elf64_Sxword;
60 typedef __uint64_t Elf64_Xword;
61
62 typedef __uint32_t Elf64_Half;
63 typedef __uint16_t Elf64_Quarter;
64
65 /*
66 * e_ident[] identification indexes
67 * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
68 */
69 #define EI_MAG0 0 /* file ID */
70 #define EI_MAG1 1 /* file ID */
71 #define EI_MAG2 2 /* file ID */
72 #define EI_MAG3 3 /* file ID */
73 #define EI_CLASS 4 /* file class */
74 #define EI_DATA 5 /* data encoding */
75 #define EI_VERSION 6 /* ELF header version */
76 #define EI_OSABI 7 /* OS/ABI ID */
77 #define EI_ABIVERSION 8 /* ABI version */
78 #define EI_PAD 9 /* start of pad bytes */
79 #define EI_NIDENT 16 /* Size of e_ident[] */
80
81 /* e_ident[] magic number */
82 #define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
83 #define ELFMAG1 'E' /* e_ident[EI_MAG1] */
84 #define ELFMAG2 'L' /* e_ident[EI_MAG2] */
85 #define ELFMAG3 'F' /* e_ident[EI_MAG3] */
86 #define ELFMAG "\177ELF" /* magic */
87 #define SELFMAG 4 /* size of magic */
88
89 /* e_ident[] file class */
90 #define ELFCLASSNONE 0 /* invalid */
91 #define ELFCLASS32 1 /* 32-bit objs */
92 #define ELFCLASS64 2 /* 64-bit objs */
93 #define ELFCLASSNUM 3 /* number of classes */
94
95 /* e_ident[] data encoding */
96 #define ELFDATANONE 0 /* invalid */
97 #define ELFDATA2LSB 1 /* Little-Endian */
98 #define ELFDATA2MSB 2 /* Big-Endian */
99 #define ELFDATANUM 3 /* number of data encode defines */
100
101 /* e_ident[] Operating System/ABI */
102 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
103 #define ELFOSABI_HPUX 1 /* HP-UX operating system */
104 #define ELFOSABI_NETBSD 2 /* NetBSD */
105 #define ELFOSABI_LINUX 3 /* GNU/Linux */
106 #define ELFOSABI_HURD 4 /* GNU/Hurd */
107 #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
108 #define ELFOSABI_SOLARIS 6 /* Solaris */
109 #define ELFOSABI_MONTEREY 7 /* Monterey */
110 #define ELFOSABI_IRIX 8 /* IRIX */
111 #define ELFOSABI_FREEBSD 9 /* FreeBSD */
112 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
113 #define ELFOSABI_MODESTO 11 /* Novell Modesto */
114 #define ELFOSABI_OPENBSD 12 /* OpenBSD */
115 #define ELFOSABI_ARM 97 /* ARM */
116 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
117
118 /* e_ident */
119 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
120 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
121 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
122 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
123
124 /* ELF Header */
125 typedef struct elfhdr {
126 unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
127 Elf32_Half e_type; /* object file type */
128 Elf32_Half e_machine; /* machine */
129 Elf32_Word e_version; /* object file version */
130 Elf32_Addr e_entry; /* virtual entry point */
131 Elf32_Off e_phoff; /* program header table offset */
132 Elf32_Off e_shoff; /* section header table offset */
133 Elf32_Word e_flags; /* processor-specific flags */
134 Elf32_Half e_ehsize; /* ELF header size */
135 Elf32_Half e_phentsize; /* program header entry size */
136 Elf32_Half e_phnum; /* number of program header entries */
137 Elf32_Half e_shentsize; /* section header entry size */
138 Elf32_Half e_shnum; /* number of section header entries */
139 Elf32_Half e_shstrndx; /* section header table's "section
140 header string table" entry offset */
141 } Elf32_Ehdr;
142
143 typedef struct {
144 unsigned char e_ident[EI_NIDENT]; /* Id bytes */
145 Elf64_Quarter e_type; /* file type */
146 Elf64_Quarter e_machine; /* machine type */
147 Elf64_Half e_version; /* version number */
148 Elf64_Addr e_entry; /* entry point */
149 Elf64_Off e_phoff; /* Program hdr offset */
150 Elf64_Off e_shoff; /* Section hdr offset */
151 Elf64_Half e_flags; /* Processor flags */
152 Elf64_Quarter e_ehsize; /* sizeof ehdr */
153 Elf64_Quarter e_phentsize; /* Program header entry size */
154 Elf64_Quarter e_phnum; /* Number of program headers */
155 Elf64_Quarter e_shentsize; /* Section header entry size */
156 Elf64_Quarter e_shnum; /* Number of section headers */
157 Elf64_Quarter e_shstrndx; /* String table index */
158 } Elf64_Ehdr;
159
160 /* e_type */
161 #define ET_NONE 0 /* No file type */
162 #define ET_REL 1 /* relocatable file */
163 #define ET_EXEC 2 /* executable file */
164 #define ET_DYN 3 /* shared object file */
165 #define ET_CORE 4 /* core file */
166 #define ET_NUM 5 /* number of types */
167 #define ET_LOPROC 0xff00 /* reserved range for processor */
168 #define ET_HIPROC 0xffff /* specific e_type */
169
170 /* e_machine */
171 #define EM_NONE 0 /* No Machine */
172 #define EM_M32 1 /* AT&T WE 32100 */
173 #define EM_SPARC 2 /* SPARC */
174 #define EM_386 3 /* Intel 80386 */
175 #define EM_68K 4 /* Motorola 68000 */
176 #define EM_88K 5 /* Motorola 88000 */
177 #define EM_486 6 /* Intel 80486 - unused? */
178 #define EM_860 7 /* Intel 80860 */
179 #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
180 /*
181 * Don't know if EM_MIPS_RS4_BE,
182 * EM_SPARC64, EM_PARISC,
183 * or EM_PPC are ABI compliant
184 */
185 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
186 #define EM_SPARC64 11 /* SPARC v9 64-bit unoffical */
187 #define EM_PARISC 15 /* HPPA */
188 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
189 #define EM_PPC 20 /* PowerPC */
190 #define EM_ARM 40 /* Advanced RISC Machines ARM */
191 #define EM_ALPHA 41 /* DEC ALPHA */
192 #define EM_SH 42 /* Hitachi/Renesas Super-H */
193 #define EM_SPARCV9 43 /* SPARC version 9 */
194 #define EM_ALPHA_EXP 0x9026 /* DEC ALPHA */
195 #define EM_AMD64 62 /* AMD64 architecture */
196 #define EM_VAX 75 /* DEC VAX */
197 #define EM_NUM 15 /* number of machine types */
198
199 /* Version */
200 #define EV_NONE 0 /* Invalid */
201 #define EV_CURRENT 1 /* Current */
202 #define EV_NUM 2 /* number of versions */
203
204 /* Section Header */
205 typedef struct {
206 Elf32_Word sh_name; /* name - index into section header
207 string table section */
208 Elf32_Word sh_type; /* type */
209 Elf32_Word sh_flags; /* flags */
210 Elf32_Addr sh_addr; /* address */
211 Elf32_Off sh_offset; /* file offset */
212 Elf32_Word sh_size; /* section size */
213 Elf32_Word sh_link; /* section header table index link */
214 Elf32_Word sh_info; /* extra information */
215 Elf32_Word sh_addralign; /* address alignment */
216 Elf32_Word sh_entsize; /* section entry size */
217 } Elf32_Shdr;
218
219 typedef struct {
220 Elf64_Half sh_name; /* section name */
221 Elf64_Half sh_type; /* section type */
222 Elf64_Xword sh_flags; /* section flags */
223 Elf64_Addr sh_addr; /* virtual address */
224 Elf64_Off sh_offset; /* file offset */
225 Elf64_Xword sh_size; /* section size */
226 Elf64_Half sh_link; /* link to another */
227 Elf64_Half sh_info; /* misc info */
228 Elf64_Xword sh_addralign; /* memory alignment */
229 Elf64_Xword sh_entsize; /* table entry size */
230 } Elf64_Shdr;
231
232 /* Special Section Indexes */
233 #define SHN_UNDEF 0 /* undefined */
234 #define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
235 #define SHN_LOPROC 0xff00 /* reserved range for processor */
236 #define SHN_HIPROC 0xff1f /* specific section indexes */
237 #define SHN_ABS 0xfff1 /* absolute value */
238 #define SHN_COMMON 0xfff2 /* common symbol */
239 #define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
240
241 /* sh_type */
242 #define SHT_NULL 0 /* inactive */
243 #define SHT_PROGBITS 1 /* program defined information */
244 #define SHT_SYMTAB 2 /* symbol table section */
245 #define SHT_STRTAB 3 /* string table section */
246 #define SHT_RELA 4 /* relocation section with addends*/
247 #define SHT_HASH 5 /* symbol hash table section */
248 #define SHT_DYNAMIC 6 /* dynamic section */
249 #define SHT_NOTE 7 /* note section */
250 #define SHT_NOBITS 8 /* no space section */
251 #define SHT_REL 9 /* relation section without addends */
252 #define SHT_SHLIB 10 /* reserved - purpose unknown */
253 #define SHT_DYNSYM 11 /* dynamic symbol table section */
254 #define SHT_NUM 12 /* number of section types */
255 #define SHT_LOPROC 0x70000000 /* reserved range for processor */
256 #define SHT_HIPROC 0x7fffffff /* specific section header types */
257 #define SHT_LOUSER 0x80000000 /* reserved range for application */
258 #define SHT_HIUSER 0xffffffff /* specific indexes */
259
260 /* Section names */
261 #define ELF_BSS ".bss" /* uninitialized data */
262 #define ELF_DATA ".data" /* initialized data */
263 #define ELF_DEBUG ".debug" /* debug */
264 #define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
265 #define ELF_DYNSTR ".dynstr" /* dynamic string table */
266 #define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
267 #define ELF_FINI ".fini" /* termination code */
268 #define ELF_GOT ".got" /* global offset table */
269 #define ELF_HASH ".hash" /* symbol hash table */
270 #define ELF_INIT ".init" /* initialization code */
271 #define ELF_REL_DATA ".rel.data" /* relocation data */
272 #define ELF_REL_FINI ".rel.fini" /* relocation termination code */
273 #define ELF_REL_INIT ".rel.init" /* relocation initialization code */
274 #define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
275 #define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
276 #define ELF_REL_TEXT ".rel.text" /* relocation code */
277 #define ELF_RODATA ".rodata" /* read-only data */
278 #define ELF_SHSTRTAB ".shstrtab" /* section header string table */
279 #define ELF_STRTAB ".strtab" /* string table */
280 #define ELF_SYMTAB ".symtab" /* symbol table */
281 #define ELF_TEXT ".text" /* code */
282
283
284 /* Section Attribute Flags - sh_flags */
285 #define SHF_WRITE 0x1 /* Writable */
286 #define SHF_ALLOC 0x2 /* occupies memory */
287 #define SHF_EXECINSTR 0x4 /* executable */
288 #define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
289 /* specific section attributes */
290
291 /* Symbol Table Entry */
292 typedef struct elf32_sym {
293 Elf32_Word st_name; /* name - index into string table */
294 Elf32_Addr st_value; /* symbol value */
295 Elf32_Word st_size; /* symbol size */
296 unsigned char st_info; /* type and binding */
297 unsigned char st_other; /* 0 - no defined meaning */
298 Elf32_Half st_shndx; /* section header index */
299 } Elf32_Sym;
300
301 typedef struct {
302 Elf64_Half st_name; /* Symbol name index in str table */
303 Elf_Byte st_info; /* type / binding attrs */
304 Elf_Byte st_other; /* unused */
305 Elf64_Quarter st_shndx; /* section index of symbol */
306 Elf64_Xword st_value; /* value of symbol */
307 Elf64_Xword st_size; /* size of symbol */
308 } Elf64_Sym;
309
310 /* Symbol table index */
311 #define STN_UNDEF 0 /* undefined */
312
313 /* Extract symbol info - st_info */
314 #define ELF32_ST_BIND(x) ((x) >> 4)
315 #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
316 #define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
317
318 #define ELF64_ST_BIND(x) ((x) >> 4)
319 #define ELF64_ST_TYPE(x) (((unsigned int) x) & 0xf)
320 #define ELF64_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
321
322 /* Symbol Binding - ELF32_ST_BIND - st_info */
323 #define STB_LOCAL 0 /* Local symbol */
324 #define STB_GLOBAL 1 /* Global symbol */
325 #define STB_WEAK 2 /* like global - lower precedence */
326 #define STB_NUM 3 /* number of symbol bindings */
327 #define STB_LOPROC 13 /* reserved range for processor */
328 #define STB_HIPROC 15 /* specific symbol bindings */
329
330 /* Symbol type - ELF32_ST_TYPE - st_info */
331 #define STT_NOTYPE 0 /* not specified */
332 #define STT_OBJECT 1 /* data object */
333 #define STT_FUNC 2 /* function */
334 #define STT_SECTION 3 /* section */
335 #define STT_FILE 4 /* file */
336 #define STT_NUM 5 /* number of symbol types */
337 #define STT_LOPROC 13 /* reserved range for processor */
338 #define STT_HIPROC 15 /* specific symbol types */
339
340 /* Relocation entry with implicit addend */
341 typedef struct {
342 Elf32_Addr r_offset; /* offset of relocation */
343 Elf32_Word r_info; /* symbol table index and type */
344 } Elf32_Rel;
345
346 /* Relocation entry with explicit addend */
347 typedef struct {
348 Elf32_Addr r_offset; /* offset of relocation */
349 Elf32_Word r_info; /* symbol table index and type */
350 Elf32_Sword r_addend;
351 } Elf32_Rela;
352
353 /* Extract relocation info - r_info */
354 #define ELF32_R_SYM(i) ((i) >> 8)
355 #define ELF32_R_TYPE(i) ((unsigned char) (i))
356 #define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
357
358 typedef struct {
359 Elf64_Xword r_offset; /* where to do it */
360 Elf64_Xword r_info; /* index & type of relocation */
361 } Elf64_Rel;
362
363 typedef struct {
364 Elf64_Xword r_offset; /* where to do it */
365 Elf64_Xword r_info; /* index & type of relocation */
366 Elf64_Sxword r_addend; /* adjustment value */
367 } Elf64_Rela;
368
369 #define ELF64_R_SYM(info) ((info) >> 32)
370 #define ELF64_R_TYPE(info) ((info) & 0xFFFFFFFF)
371 #define ELF64_R_INFO(s,t) (((s) << 32) + (__uint32_t)(t))
372
373 /* Program Header */
374 typedef struct {
375 Elf32_Word p_type; /* segment type */
376 Elf32_Off p_offset; /* segment offset */
377 Elf32_Addr p_vaddr; /* virtual address of segment */
378 Elf32_Addr p_paddr; /* physical address - ignored? */
379 Elf32_Word p_filesz; /* number of bytes in file for seg. */
380 Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
381 Elf32_Word p_flags; /* flags */
382 Elf32_Word p_align; /* memory alignment */
383 } Elf32_Phdr;
384
385 typedef struct {
386 Elf64_Half p_type; /* entry type */
387 Elf64_Half p_flags; /* flags */
388 Elf64_Off p_offset; /* offset */
389 Elf64_Addr p_vaddr; /* virtual address */
390 Elf64_Addr p_paddr; /* physical address */
391 Elf64_Xword p_filesz; /* file size */
392 Elf64_Xword p_memsz; /* memory size */
393 Elf64_Xword p_align; /* memory & file alignment */
394 } Elf64_Phdr;
395
396 /* Segment types - p_type */
397 #define PT_NULL 0 /* unused */
398 #define PT_LOAD 1 /* loadable segment */
399 #define PT_DYNAMIC 2 /* dynamic linking section */
400 #define PT_INTERP 3 /* the RTLD */
401 #define PT_NOTE 4 /* auxiliary information */
402 #define PT_SHLIB 5 /* reserved - purpose undefined */
403 #define PT_PHDR 6 /* program header */
404 #define PT_NUM 7 /* Number of segment types */
405 #define PT_LOOS 0x60000000 /* reserved range for OS */
406 #define PT_HIOS 0x6fffffff /* specific segment types */
407 #define PT_LOPROC 0x70000000 /* reserved range for processor */
408 #define PT_HIPROC 0x7fffffff /* specific segment types */
409
410 /* Segment flags - p_flags */
411 #define PF_X 0x1 /* Executable */
412 #define PF_W 0x2 /* Writable */
413 #define PF_R 0x4 /* Readable */
414 #define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
415 /* specific segment flags */
416
417 /* Dynamic structure */
418 typedef struct {
419 Elf32_Sword d_tag; /* controls meaning of d_val */
420 union {
421 Elf32_Word d_val; /* Multiple meanings - see d_tag */
422 Elf32_Addr d_ptr; /* program virtual address */
423 } d_un;
424 } Elf32_Dyn;
425
426 typedef struct {
427 Elf64_Xword d_tag; /* controls meaning of d_val */
428 union {
429 Elf64_Addr d_ptr;
430 Elf64_Xword d_val;
431 } d_un;
432 } Elf64_Dyn;
433
434 /* Dynamic Array Tags - d_tag */
435 #define DT_NULL 0 /* marks end of _DYNAMIC array */
436 #define DT_NEEDED 1 /* string table offset of needed lib */
437 #define DT_PLTRELSZ 2 /* size of relocation entries in PLT */
438 #define DT_PLTGOT 3 /* address PLT/GOT */
439 #define DT_HASH 4 /* address of symbol hash table */
440 #define DT_STRTAB 5 /* address of string table */
441 #define DT_SYMTAB 6 /* address of symbol table */
442 #define DT_RELA 7 /* address of relocation table */
443 #define DT_RELASZ 8 /* size of relocation table */
444 #define DT_RELAENT 9 /* size of relocation entry */
445 #define DT_STRSZ 10 /* size of string table */
446 #define DT_SYMENT 11 /* size of symbol table entry */
447 #define DT_INIT 12 /* address of initialization func. */
448 #define DT_FINI 13 /* address of termination function */
449 #define DT_SONAME 14 /* string table offset of shared obj */
450 #define DT_RPATH 15 /* string table offset of library
451 search path */
452 #define DT_SYMBOLIC 16 /* start sym search in shared obj. */
453 #define DT_REL 17 /* address of rel. tbl. w addends */
454 #define DT_RELSZ 18 /* size of DT_REL relocation table */
455 #define DT_RELENT 19 /* size of DT_REL relocation entry */
456 #define DT_PLTREL 20 /* PLT referenced relocation entry */
457 #define DT_DEBUG 21 /* bugger */
458 #define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */
459 #define DT_JMPREL 23 /* add. of PLT's relocation entries */
460 #define DT_BIND_NOW 24 /* Bind now regardless of env setting */
461 #define DT_NUM 25 /* Number used. */
462 #define DT_LOPROC 0x70000000 /* reserved range for processor */
463 #define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
464
465 /* Standard ELF hashing function */
466 unsigned int elf_hash(const unsigned char *name);
467
468 /*
469 * Note Definitions
470 */
471 typedef struct {
472 Elf32_Word namesz;
473 Elf32_Word descsz;
474 Elf32_Word type;
475 } Elf32_Note;
476
477 typedef struct {
478 Elf64_Half namesz;
479 Elf64_Half descsz;
480 Elf64_Half type;
481 } Elf64_Note;
482
483 /*
484 * XXX - these _KERNEL items aren't part of the ABI!
485 */
486 #if defined(_KERNEL) || defined(_DYN_LOADER)
487
488 #define ELF32_NO_ADDR ((uint32_t) ~0) /* Indicates addr. not yet filled in */
489 #define ELF_AUX_ENTRIES 8 /* Size of aux array passed to loader */
490
491 typedef struct {
492 Elf32_Sword au_id; /* 32-bit id */
493 Elf32_Word au_v; /* 32-bit value */
494 } Aux32Info;
495
496 #define ELF64_NO_ADDR ((__uint64_t) ~0)/* Indicates addr. not yet filled in */
497 #define ELF64_AUX_ENTRIES 8 /* Size of aux array passed to loader */
498
499 typedef struct {
500 Elf64_Shalf au_id; /* 32-bit id */
501 Elf64_Xword au_v; /* 64-bit id */
502 } Aux64Info;
503
504 enum AuxID {
505 AUX_null = 0,
506 AUX_ignore = 1,
507 AUX_execfd = 2,
508 AUX_phdr = 3, /* &phdr[0] */
509 AUX_phent = 4, /* sizeof(phdr[0]) */
510 AUX_phnum = 5, /* # phdr entries */
511 AUX_pagesz = 6, /* PAGESIZE */
512 AUX_base = 7, /* ld.so base addr */
513 AUX_flags = 8, /* processor flags */
514 AUX_entry = 9, /* a.out entry */
515 AUX_sun_uid = 2000, /* euid */
516 AUX_sun_ruid = 2001, /* ruid */
517 AUX_sun_gid = 2002, /* egid */
518 AUX_sun_rgid = 2003 /* rgid */
519 };
520
521 struct elf_args {
522 u_long arg_entry; /* program entry point */
523 u_long arg_interp; /* Interpreter load address */
524 u_long arg_phaddr; /* program header address */
525 u_long arg_phentsize; /* Size of program header */
526 u_long arg_phnum; /* Number of program headers */
527 u_long arg_os; /* OS tag */
528 };
529
530 #endif
531
532 #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE)
533 #define ELFSIZE ARCH_ELFSIZE
534 #endif
535
536 #if defined(ELFSIZE)
537 #define CONCAT(x,y) __CONCAT(x,y)
538 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
539 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
540 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE))
541 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
542 #endif
543
544 #if defined(ELFSIZE) && (ELFSIZE == 32)
545 #define Elf_Ehdr Elf32_Ehdr
546 #define Elf_Phdr Elf32_Phdr
547 #define Elf_Shdr Elf32_Shdr
548 #define Elf_Sym Elf32_Sym
549 #define Elf_Rel Elf32_Rel
550 #define Elf_RelA Elf32_Rela
551 #define Elf_Dyn Elf32_Dyn
552 #define Elf_Half Elf32_Half
553 #define Elf_Word Elf32_Word
554 #define Elf_Sword Elf32_Sword
555 #define Elf_Addr Elf32_Addr
556 #define Elf_Off Elf32_Off
557 #define Elf_Nhdr Elf32_Nhdr
558 #define Elf_Note Elf32_Note
559
560 #define ELF_R_SYM ELF32_R_SYM
561 #define ELF_R_TYPE ELF32_R_TYPE
562 #define ELF_R_INFO ELF32_R_INFO
563 #define ELFCLASS ELFCLASS32
564
565 #define ELF_ST_BIND ELF32_ST_BIND
566 #define ELF_ST_TYPE ELF32_ST_TYPE
567 #define ELF_ST_INFO ELF32_ST_INFO
568
569 #define AuxInfo Aux32Info
570 #elif defined(ELFSIZE) && (ELFSIZE == 64)
571 #define Elf_Ehdr Elf64_Ehdr
572 #define Elf_Phdr Elf64_Phdr
573 #define Elf_Shdr Elf64_Shdr
574 #define Elf_Sym Elf64_Sym
575 #define Elf_Rel Elf64_Rel
576 #define Elf_RelA Elf64_Rela
577 #define Elf_Dyn Elf64_Dyn
578 #define Elf_Half Elf64_Half
579 #define Elf_Word Elf64_Word
580 #define Elf_Sword Elf64_Sword
581 #define Elf_Addr Elf64_Addr
582 #define Elf_Off Elf64_Off
583 #define Elf_Nhdr Elf64_Nhdr
584 #define Elf_Note Elf64_Note
585
586 #define ELF_R_SYM ELF64_R_SYM
587 #define ELF_R_TYPE ELF64_R_TYPE
588 #define ELF_R_INFO ELF64_R_INFO
589 #define ELFCLASS ELFCLASS64
590
591 #define ELF_ST_BIND ELF64_ST_BIND
592 #define ELF_ST_TYPE ELF64_ST_TYPE
593 #define ELF_ST_INFO ELF64_ST_INFO
594
595 #define AuxInfo Aux64Info
596 #endif
597
598 #ifndef _KERNEL
599 extern Elf_Dyn _DYNAMIC[];
600 #endif
601
602 #ifdef _KERNEL
603 #ifdef _KERN_DO_ELF64
604 int exec_elf64_makecmds(struct proc *, struct exec_package *);
605 void *elf64_copyargs(struct exec_package *, struct ps_strings *,
606 void *, void *);
607 int exec_elf64_fixup(struct proc *, struct exec_package *);
608 char *elf64_check_brand(Elf64_Ehdr *);
609 int elf64_os_pt_note(struct proc *, struct exec_package *, Elf64_Ehdr *,
610 char *, size_t, size_t);
611 #endif
612 #ifdef _KERN_DO_ELF
613 int exec_elf32_makecmds(struct proc *, struct exec_package *);
614 void *elf32_copyargs(struct exec_package *, struct ps_strings *,
615 void *, void *);
616 int exec_elf32_fixup(struct proc *, struct exec_package *);
617 char *elf32_check_brand(Elf32_Ehdr *);
618 int elf32_os_pt_note(struct proc *, struct exec_package *, Elf32_Ehdr *,
619 char *, size_t, size_t);
620 #endif
621
622 #endif /* _KERNEL */
623
624 #define ELF_TARG_VER 1 /* The ver for which this code is intended */
625
626 #endif /* _SYS_EXEC_ELF_H_ */