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exec_elf.h
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1 /* gxemul: $Id: exec_elf.h,v 1.7 2007-07-20 09:03:33 debug Exp $ */
2 
3 #ifndef __EXEC_ELF_H
4 #define __EXEC_ELF_H
5 
6 #include <inttypes.h>
7 
8 /* $NetBSD: exec_elf.h,v 1.37.4.2 2001/05/01 12:05:43 he Exp $ */
9 
10 /*-
11  * Copyright (c) 1994 The NetBSD Foundation, Inc.
12  * All rights reserved.
13  *
14  * This code is derived from software contributed to The NetBSD Foundation
15  * by Christos Zoulas.
16  *
17  * Redistribution and use in source and binary forms, with or without
18  * modification, are permitted provided that the following conditions
19  * are met:
20  * 1. Redistributions of source code must retain the above copyright
21  * notice, this list of conditions and the following disclaimer.
22  * 2. Redistributions in binary form must reproduce the above copyright
23  * notice, this list of conditions and the following disclaimer in the
24  * documentation and/or other materials provided with the distribution.
25  * 3. All advertising materials mentioning features or use of this software
26  * must display the following acknowledgement:
27  * This product includes software developed by the NetBSD
28  * Foundation, Inc. and its contributors.
29  * 4. Neither the name of The NetBSD Foundation nor the names of its
30  * contributors may be used to endorse or promote products derived
31  * from this software without specific prior written permission.
32  *
33  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
34  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
35  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
36  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
37  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
38  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
39  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
40  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
41  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
42  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
43  * POSSIBILITY OF SUCH DAMAGE.
44  */
45 
46 
47 typedef uint8_t Elf_Byte;
48 
49 typedef uint32_t Elf32_Addr;
50 #define ELF32_FSZ_ADDR 4
51 typedef uint32_t Elf32_Off;
52 #define ELF32_FSZ_OFF 4
53 typedef int32_t Elf32_Sword;
54 #define ELF32_FSZ_SWORD 4
55 typedef uint32_t Elf32_Word;
56 #define ELF32_FSZ_WORD 4
57 typedef uint16_t Elf32_Half;
58 #define ELF32_FSZ_HALF 2
59 
60 typedef uint64_t Elf64_Addr;
61 #define ELF64_FSZ_ADDR 8
62 typedef uint64_t Elf64_Off;
63 #define ELF64_FSZ_OFF 8
64 typedef int32_t Elf64_Shalf;
65 #define ELF64_FSZ_SHALF 4
66 #ifdef __sparc_v9__
67 /* #error weird */
68 typedef int32_t Elf64_Sword;
69 #define ELF64_FSZ_SWORD 4
70 typedef uint32_t Elf64_Word;
71 #define ELF64_FSZ_WORD 4
72 #else
73 typedef int64_t Elf64_Sword;
74 #define ELF64_FSZ_SWORD 8
75 typedef uint64_t Elf64_Word;
76 #define ELF64_FSZ_WORD 8
77 #endif
78 typedef int64_t Elf64_Sxword;
79 #define ELF64_FSZ_XWORD 8
80 typedef uint64_t Elf64_Xword;
81 #define ELF64_FSZ_XWORD 8
82 typedef uint32_t Elf64_Half;
83 #define ELF64_FSZ_HALF 4
84 typedef uint16_t Elf64_Quarter;
85 #define ELF64_FSZ_QUARTER 2
86 
87 /*
88  * ELF Header
89  */
90 #define ELF_NIDENT 16
91 
92 typedef struct {
93  unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
94  Elf32_Half e_type; /* file type */
95  Elf32_Half e_machine; /* machine type */
96  Elf32_Word e_version; /* version number */
97  Elf32_Addr e_entry; /* entry point */
98  Elf32_Off e_phoff; /* Program hdr offset */
99  Elf32_Off e_shoff; /* Section hdr offset */
100  Elf32_Word e_flags; /* Processor flags */
101  Elf32_Half e_ehsize; /* sizeof ehdr */
102  Elf32_Half e_phentsize; /* Program header entry size */
103  Elf32_Half e_phnum; /* Number of program headers */
104  Elf32_Half e_shentsize; /* Section header entry size */
105  Elf32_Half e_shnum; /* Number of section headers */
106  Elf32_Half e_shstrndx; /* String table index */
107 } Elf32_Ehdr;
108 
109 typedef struct {
110  unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
111  Elf64_Quarter e_type; /* file type */
112  Elf64_Quarter e_machine; /* machine type */
113  Elf64_Half e_version; /* version number */
114  Elf64_Addr e_entry; /* entry point */
115  Elf64_Off e_phoff; /* Program hdr offset */
116  Elf64_Off e_shoff; /* Section hdr offset */
117  Elf64_Half e_flags; /* Processor flags */
118  Elf64_Quarter e_ehsize; /* sizeof ehdr */
119  Elf64_Quarter e_phentsize; /* Program header entry size */
120  Elf64_Quarter e_phnum; /* Number of program headers */
121  Elf64_Quarter e_shentsize; /* Section header entry size */
122  Elf64_Quarter e_shnum; /* Number of section headers */
123  Elf64_Quarter e_shstrndx; /* String table index */
124 } Elf64_Ehdr;
125 
126 /* e_ident offsets */
127 #define EI_MAG0 0 /* '\177' */
128 #define EI_MAG1 1 /* 'E' */
129 #define EI_MAG2 2 /* 'L' */
130 #define EI_MAG3 3 /* 'F' */
131 #define EI_CLASS 4 /* File class */
132 #define EI_DATA 5 /* Data encoding */
133 #define EI_VERSION 6 /* File version */
134 #define EI_OSABI 7 /* Operating system/ABI identification */
135 #define EI_ABIVERSION 8 /* ABI version */
136 #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/
137 
138 /* e_ident[ELFMAG0,ELFMAG3] */
139 #define ELFMAG0 0x7f
140 #define ELFMAG1 'E'
141 #define ELFMAG2 'L'
142 #define ELFMAG3 'F'
143 #define ELFMAG "\177ELF"
144 #define SELFMAG 4
145 
146 /* e_ident[EI_CLASS] */
147 #define ELFCLASSNONE 0 /* Invalid class */
148 #define ELFCLASS32 1 /* 32-bit objects */
149 #define ELFCLASS64 2 /* 64-bit objects */
150 #define ELFCLASSNUM 3
151 
152 /* e_ident[EI_DATA] */
153 #define ELFDATANONE 0 /* Invalid data encoding */
154 #define ELFDATA2LSB 1 /* 2's complement values, LSB first */
155 #define ELFDATA2MSB 2 /* 2's complement values, MSB first */
156 
157 /* e_ident[EI_VERSION] */
158 #define EV_NONE 0 /* Invalid version */
159 #define EV_CURRENT 1 /* Current version */
160 #define EV_NUM 2
161 
162 /* e_ident[EI_OSABI] */
163 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
164 #define ELFOSABI_HPUX 1 /* HP-UX operating system */
165 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
166 
167 /* e_type */
168 #define ET_NONE 0 /* No file type */
169 #define ET_REL 1 /* Relocatable file */
170 #define ET_EXEC 2 /* Executable file */
171 #define ET_DYN 3 /* Shared object file */
172 #define ET_CORE 4 /* Core file */
173 #define ET_NUM 5
174 
175 #define ET_LOOS 0xfe00 /* Operating system specific range */
176 #define ET_HIOS 0xfeff
177 #define ET_LOPROC 0xff00 /* Processor-specific range */
178 #define ET_HIPROC 0xffff
179 
180 /* e_machine */
181 #define EM_NONE 0 /* No machine */
182 #define EM_M32 1 /* AT&T WE 32100 */
183 #define EM_SPARC 2 /* SPARC */
184 #define EM_386 3 /* Intel 80386 */
185 #define EM_68K 4 /* Motorola 68000 */
186 #define EM_88K 5 /* Motorola 88000 */
187 #define EM_486 6 /* Intel 80486 */
188 #define EM_860 7 /* Intel 80860 */
189 #define EM_MIPS 8 /* MIPS I Architecture */
190 #define EM_S370 9 /* Amdahl UTS on System/370 */
191 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
192 #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */
193 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
194 #define EM_NCUBE 16 /* NCube XXX reserved */
195 #define EM_VPP500 17 /* Fujitsu VPP500 */
196 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
197 #define EM_960 19 /* Intel 80960 */
198 #define EM_PPC 20 /* PowerPC */
199 #define EM_PPC64 21 /* PowerPC 64-bit (GXemul addition) */
200 #define EM_V800 36 /* NEC V800 */
201 #define EM_FR20 37 /* Fujitsu FR20 */
202 #define EM_RH32 38 /* TRW RH-32 */
203 #define EM_RCE 39 /* Motorola RCE */
204 #define EM_ARM 40 /* Advanced RISC Machines ARM */
205 #define EM_ALPHA 41 /* DIGITAL Alpha */
206 #define EM_SH 42 /* Hitachi Super-H */
207 #define EM_SPARCV9 43 /* SPARC Version 9 */
208 #define EM_TRICORE 44 /* Siemens Tricore */
209 #define EM_ARC 45 /* Argonaut RISC Core */
210 #define EM_H8_300 46 /* Hitachi H8/300 */
211 #define EM_H8_300H 47 /* Hitachi H8/300H */
212 #define EM_H8S 48 /* Hitachi H8S */
213 #define EM_H8_500 49 /* Hitachi H8/500 */
214 #define EM_IA_64 50 /* Intel Merced Processor */
215 #define EM_MIPS_X 51 /* Stanford MIPS-X */
216 #define EM_COLDFIRE 52 /* Motorola Coldfire */
217 #define EM_68HC12 53 /* Motorola MC68HC12 */
218 #define EM_AMD64 62 /* AMD64 (GXemul addition) */
219 #define EM_VAX 75 /* DIGITAL VAX */
220 #define EM_AVR 83 /* Atmel AVR (GXemul addition) */
221 #define EM_M32R 88 /* Renesas M32R (GXemul addition) */
222 #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */
223 #define EM_NUM 36903
224 
225 /*
226  * Program Header
227  */
228 typedef struct {
229  Elf32_Word p_type; /* entry type */
230  Elf32_Off p_offset; /* offset */
231  Elf32_Addr p_vaddr; /* virtual address */
232  Elf32_Addr p_paddr; /* physical address */
233  Elf32_Word p_filesz; /* file size */
234  Elf32_Word p_memsz; /* memory size */
235  Elf32_Word p_flags; /* flags */
236  Elf32_Word p_align; /* memory & file alignment */
237 } Elf32_Phdr;
238 
239 typedef struct {
240  Elf64_Half p_type; /* entry type */
241  Elf64_Half p_flags; /* flags */
242  Elf64_Off p_offset; /* offset */
243  Elf64_Addr p_vaddr; /* virtual address */
244  Elf64_Addr p_paddr; /* physical address */
245  Elf64_Xword p_filesz; /* file size */
246  Elf64_Xword p_memsz; /* memory size */
247  Elf64_Xword p_align; /* memory & file alignment */
248 } Elf64_Phdr;
249 
250 /* p_type */
251 #define PT_NULL 0 /* Program header table entry unused */
252 #define PT_LOAD 1 /* Loadable program segment */
253 #define PT_DYNAMIC 2 /* Dynamic linking information */
254 #define PT_INTERP 3 /* Program interpreter */
255 #define PT_NOTE 4 /* Auxiliary information */
256 #define PT_SHLIB 5 /* Reserved, unspecified semantics */
257 #define PT_PHDR 6 /* Entry for header table itself */
258 #define PT_NUM 7
259 
260 /* p_flags */
261 #define PF_R 0x4 /* Segment is readable */
262 #define PF_W 0x2 /* Segment is writable */
263 #define PF_X 0x1 /* Segment is executable */
264 
265 #define PF_MASKOS 0x0ff00000 /* Opersting system specific values */
266 #define PF_MASKPROC 0xf0000000 /* Processor-specific values */
267 
268 #define PT_LOPROC 0x70000000 /* Processor-specific range */
269 #define PT_HIPROC 0x7fffffff
270 
271 #define PT_MIPS_REGINFO 0x70000000
272 
273 /*
274  * Section Headers
275  */
276 typedef struct {
277  Elf32_Word sh_name; /* section name (.shstrtab index) */
278  Elf32_Word sh_type; /* section type */
279  Elf32_Word sh_flags; /* section flags */
280  Elf32_Addr sh_addr; /* virtual address */
281  Elf32_Off sh_offset; /* file offset */
282  Elf32_Word sh_size; /* section size */
283  Elf32_Word sh_link; /* link to another */
284  Elf32_Word sh_info; /* misc info */
285  Elf32_Word sh_addralign; /* memory alignment */
286  Elf32_Word sh_entsize; /* table entry size */
287 } Elf32_Shdr;
288 
289 typedef struct {
290  Elf64_Half sh_name; /* section name (.shstrtab index) */
291  Elf64_Half sh_type; /* section type */
292  Elf64_Xword sh_flags; /* section flags */
293  Elf64_Addr sh_addr; /* virtual address */
294  Elf64_Off sh_offset; /* file offset */
295  Elf64_Xword sh_size; /* section size */
296  Elf64_Half sh_link; /* link to another */
297  Elf64_Half sh_info; /* misc info */
298  Elf64_Xword sh_addralign; /* memory alignment */
299  Elf64_Xword sh_entsize; /* table entry size */
300 } Elf64_Shdr;
301 
302 /* sh_type */
303 #define SHT_NULL 0
304 #define SHT_PROGBITS 1
305 #define SHT_SYMTAB 2
306 #define SHT_STRTAB 3
307 #define SHT_RELA 4
308 #define SHT_HASH 5
309 #define SHT_DYNAMIC 6
310 #define SHT_NOTE 7
311 #define SHT_NOBITS 8
312 #define SHT_REL 9
313 #define SHT_SHLIB 10
314 #define SHT_DYNSYM 11
315 #define SHT_NUM 12
316 
317 #define SHT_LOOS 0x60000000 /* Operating system specific range */
318 #define SHT_HIOS 0x6fffffff
319 #define SHT_LOPROC 0x70000000 /* Processor-specific range */
320 #define SHT_HIPROC 0x7fffffff
321 #define SHT_LOUSER 0x80000000 /* Application-specific range */
322 #define SHT_HIUSER 0xffffffff
323 
324 /* sh_flags */
325 #define SHF_WRITE 0x1 /* Section contains writable data */
326 #define SHF_ALLOC 0x2 /* Section occupies memory */
327 #define SHF_EXECINSTR 0x4 /* Section contains executable insns */
328 
329 #define SHF_MASKOS 0x0f000000 /* Operating system specific values */
330 #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */
331 
332 /*
333  * Symbol Table
334  */
335 typedef struct {
336  Elf32_Word st_name; /* Symbol name (.symtab index) */
337  Elf32_Word st_value; /* value of symbol */
338  Elf32_Word st_size; /* size of symbol */
339  Elf_Byte st_info; /* type / binding attrs */
340  Elf_Byte st_other; /* unused */
341  Elf32_Half st_shndx; /* section index of symbol */
342 } Elf32_Sym;
343 
344 typedef struct {
345  Elf64_Half st_name; /* Symbol name (.symtab index) */
346  Elf_Byte st_info; /* type / binding attrs */
347  Elf_Byte st_other; /* unused */
348  Elf64_Quarter st_shndx; /* section index of symbol */
349  Elf64_Addr st_value; /* value of symbol */
350  Elf64_Xword st_size; /* size of symbol */
351 } Elf64_Sym;
352 
353 /* Symbol Table index of the undefined symbol */
354 #define ELF_SYM_UNDEFINED 0
355 
356 /* st_info: Symbol Bindings */
357 #define STB_LOCAL 0 /* local symbol */
358 #define STB_GLOBAL 1 /* global symbol */
359 #define STB_WEAK 2 /* weakly defined global symbol */
360 #define STB_NUM 3
361 
362 #define STB_LOOS 10 /* Operating system specific range */
363 #define STB_HIOS 12
364 #define STB_LOPROC 13 /* Processor-specific range */
365 #define STB_HIPROC 15
366 
367 /* st_info: Symbol Types */
368 #define STT_NOTYPE 0 /* Type not specified */
369 #define STT_OBJECT 1 /* Associated with a data object */
370 #define STT_FUNC 2 /* Associated with a function */
371 #define STT_SECTION 3 /* Associated with a section */
372 #define STT_FILE 4 /* Associated with a file name */
373 #define STT_NUM 5
374 
375 #define STT_LOOS 10 /* Operating system specific range */
376 #define STT_HIOS 12
377 #define STT_LOPROC 13 /* Processor-specific range */
378 #define STT_HIPROC 15
379 
380 /* st_info utility macros */
381 #define ELF32_ST_BIND(info) ((Elf32_Word)(info) >> 4)
382 #define ELF32_ST_TYPE(info) ((Elf32_Word)(info) & 0xf)
383 #define ELF32_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf)))
384 
385 #define ELF64_ST_BIND(info) ((Elf64_Xword)(info) >> 4)
386 #define ELF64_ST_TYPE(info) ((Elf64_Xword)(info) & 0xf)
387 #define ELF64_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf)))
388 
389 /*
390  * Special section indexes
391  */
392 #define SHN_UNDEF 0 /* Undefined section */
393 
394 #define SHN_LORESERVE 0xff00 /* Reserved range */
395 #define SHN_ABS 0xfff1 /* Absolute symbols */
396 #define SHN_COMMON 0xfff2 /* Common symbols */
397 #define SHN_HIRESERVE 0xffff
398 
399 #define SHN_LOPROC 0xff00 /* Processor-specific range */
400 #define SHN_HIPROC 0xff1f
401 #define SHN_LOOS 0xff20 /* Operating system specific range */
402 #define SHN_HIOS 0xff3f
403 
404 #define SHN_MIPS_ACOMMON 0xff00
405 #define SHN_MIPS_TEXT 0xff01
406 #define SHN_MIPS_DATA 0xff02
407 #define SHN_MIPS_SCOMMON 0xff03
408 
409 /*
410  * Relocation Entries
411  */
412 typedef struct {
413  Elf32_Word r_offset; /* where to do it */
414  Elf32_Word r_info; /* index & type of relocation */
415 } Elf32_Rel;
416 
417 typedef struct {
418  Elf32_Word r_offset; /* where to do it */
419  Elf32_Word r_info; /* index & type of relocation */
420  Elf32_Sword r_addend; /* adjustment value */
421 } Elf32_Rela;
422 
423 /* r_info utility macros */
424 #define ELF32_R_SYM(info) ((info) >> 8)
425 #define ELF32_R_TYPE(info) ((info) & 0xff)
426 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
427 
428 typedef struct {
429  Elf64_Addr r_offset; /* where to do it */
430  Elf64_Xword r_info; /* index & type of relocation */
431 } Elf64_Rel;
432 
433 typedef struct {
434  Elf64_Addr r_offset; /* where to do it */
435  Elf64_Xword r_info; /* index & type of relocation */
436  Elf64_Sxword r_addend; /* adjustment value */
437 } Elf64_Rela;
438 
439 /* r_info utility macros */
440 #define ELF64_R_SYM(info) ((info) >> 32)
441 #define ELF64_R_TYPE(info) ((info) & 0xffffffff)
442 #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type))
443 
444 /*
445  * Dynamic Section structure array
446  */
447 typedef struct {
448  Elf32_Word d_tag; /* entry tag value */
449  union {
452  } d_un;
453 } Elf32_Dyn;
454 
455 typedef struct {
456  Elf64_Xword d_tag; /* entry tag value */
457  union {
460  } d_un;
461 } Elf64_Dyn;
462 
463 /* d_tag */
464 #define DT_NULL 0 /* Marks end of dynamic array */
465 #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */
466 #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */
467 #define DT_PLTGOT 3 /* Address of PLT and/or GOT */
468 #define DT_HASH 4 /* Address of symbol hash table */
469 #define DT_STRTAB 5 /* Address of string table */
470 #define DT_SYMTAB 6 /* Address of symbol table */
471 #define DT_RELA 7 /* Address of Rela relocation table */
472 #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */
473 #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */
474 #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */
475 #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */
476 #define DT_INIT 12 /* Address of initialization function */
477 #define DT_FINI 13 /* Address of termination function */
478 #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */
479 #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */
480 #define DT_SYMBOLIC 16 /* Start symbol search within local object */
481 #define DT_REL 17 /* Address of Rel relocation table */
482 #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */
483 #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */
484 #define DT_PLTREL 20 /* Type of PLT relocation entries */
485 #define DT_DEBUG 21 /* Used for debugging; unspecified */
486 #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */
487 #define DT_JMPREL 23 /* Address of relocations associated with PLT */
488 #define DT_BIND_NOW 24 /* Process all relocations at load-time */
489 #define DT_INIT_ARRAY 25 /* Address of initialization function array */
490 #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */
491 #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */
492 #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/
493 #define DT_NUM 29
494 
495 #define DT_LOOS 0x60000000 /* Operating system specific range */
496 #define DT_HIOS 0x6fffffff
497 #define DT_LOPROC 0x70000000 /* Processor-specific range */
498 #define DT_HIPROC 0x7fffffff
499 
500 /*
501  * Auxiliary Vectors
502  */
503 typedef struct {
504  Elf32_Word a_type; /* 32-bit id */
505  Elf32_Word a_v; /* 32-bit id */
506 } Aux32Info;
507 
508 typedef struct {
509  Elf64_Half a_type; /* 32-bit id */
510  Elf64_Xword a_v; /* 64-bit id */
511 } Aux64Info;
512 
513 /* a_type */
514 #define AT_NULL 0 /* Marks end of array */
515 #define AT_IGNORE 1 /* No meaning, a_un is undefined */
516 #define AT_EXECFD 2 /* Open file descriptor of object file */
517 #define AT_PHDR 3 /* &phdr[0] */
518 #define AT_PHENT 4 /* sizeof(phdr[0]) */
519 #define AT_PHNUM 5 /* # phdr entries */
520 #define AT_PAGESZ 6 /* PAGESIZE */
521 #define AT_BASE 7 /* Interpreter base addr */
522 #define AT_FLAGS 8 /* Processor flags */
523 #define AT_ENTRY 9 /* Entry address of executable */
524 #define AT_DCACHEBSIZE 10 /* Data cache block size */
525 #define AT_ICACHEBSIZE 11 /* Instruction cache block size */
526 #define AT_UCACHEBSIZE 12 /* Unified cache block size */
527 
528  /* Vendor specific */
529 #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */
530 
531 #define AT_SUN_UID 2000 /* euid */
532 #define AT_SUN_RUID 2001 /* ruid */
533 #define AT_SUN_GID 2002 /* egid */
534 #define AT_SUN_RGID 2003 /* rgid */
535 
536  /* Solaris kernel specific */
537 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */
538 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */
539 #define AT_SUN_LDNAME 2006 /* dynamic linker's name */
540 #define AT_SUN_LPGSIZE 2007 /* large pagesize */
541 
542  /* Other information */
543 #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */
544 #define AT_SUN_HWCAP 2009 /* process hardware capabilities */
545 #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */
546 #define AT_SUN_CPU 2011 /* cpu name */
547  /* ibcs2 emulation band aid */
548 #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */
549 #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */
550  /* Executable's fully resolved name */
551 #define AT_SUN_EXECNAME 2014
552 
553 /*
554  * Note Headers
555  */
556 typedef struct {
560 } Elf32_Nhdr;
561 
562 typedef struct {
566 } Elf64_Nhdr;
567 
568 #define ELF_NOTE_TYPE_OSVERSION 1
569 
570 /* NetBSD-specific note type: OS Version. desc is 4-byte NetBSD integer. */
571 #define ELF_NOTE_NETBSD_TYPE_OSVERSION ELF_NOTE_TYPE_OSVERSION
572 
573 /* NetBSD-specific note type: Emulation name. desc is emul name string. */
574 #define ELF_NOTE_NETBSD_TYPE_EMULNAME 2
575 
576 /* NetBSD-specific note name and description sizes */
577 #define ELF_NOTE_NETBSD_NAMESZ 7
578 #define ELF_NOTE_NETBSD_DESCSZ 4
579 /* NetBSD-specific note name */
580 #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0"
581 
582 /* GNU-specific note name and description sizes */
583 #define ELF_NOTE_GNU_NAMESZ 4
584 #define ELF_NOTE_GNU_DESCSZ 4
585 /* GNU-specific note name */
586 #define ELF_NOTE_GNU_NAME "GNU\0"
587 
588 /* GNU-specific OS/version value stuff */
589 #define ELF_NOTE_GNU_OSMASK (u_int32_t)0xff000000
590 #define ELF_NOTE_GNU_OSLINUX (u_int32_t)0x01000000
591 #define ELF_NOTE_GNU_OSMACH (u_int32_t)0x00000000
592 
593 #if defined(ELFSIZE)
594 #define CONCAT(x,y) __CONCAT(x,y)
595 #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
596 #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
597 #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE))
598 #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
599 #endif
600 
601 /* #include <machine/elf_machdep.h> */
602 
603 #if defined(ELFSIZE) && (ELFSIZE == 32)
604 #define Elf_Ehdr Elf32_Ehdr
605 #define Elf_Phdr Elf32_Phdr
606 #define Elf_Shdr Elf32_Shdr
607 #define Elf_Sym Elf32_Sym
608 #define Elf_Rel Elf32_Rel
609 #define Elf_Rela Elf32_Rela
610 #define Elf_Dyn Elf32_Dyn
611 #define Elf_Word Elf32_Word
612 #define Elf_Sword Elf32_Sword
613 #define Elf_Addr Elf32_Addr
614 #define Elf_Off Elf32_Off
615 #define Elf_Nhdr Elf32_Nhdr
616 
617 #define ELF_R_SYM ELF32_R_SYM
618 #define ELF_R_TYPE ELF32_R_TYPE
619 #define ELFCLASS ELFCLASS32
620 
621 #define ELF_ST_BIND ELF32_ST_BIND
622 #define ELF_ST_TYPE ELF32_ST_TYPE
623 #define ELF_ST_INFO ELF32_ST_INFO
624 
625 #define AuxInfo Aux32Info
626 #elif defined(ELFSIZE) && (ELFSIZE == 64)
627 #define Elf_Ehdr Elf64_Ehdr
628 #define Elf_Phdr Elf64_Phdr
629 #define Elf_Shdr Elf64_Shdr
630 #define Elf_Sym Elf64_Sym
631 #define Elf_Rel Elf64_Rel
632 #define Elf_Rela Elf64_Rela
633 #define Elf_Dyn Elf64_Dyn
634 #define Elf_Word Elf64_Word
635 #define Elf_Sword Elf64_Sword
636 #define Elf_Addr Elf64_Addr
637 #define Elf_Off Elf64_Off
638 #define Elf_Nhdr Elf64_Nhdr
639 
640 #define ELF_R_SYM ELF64_R_SYM
641 #define ELF_R_TYPE ELF64_R_TYPE
642 #define ELFCLASS ELFCLASS64
643 
644 #define ELF_ST_BIND ELF64_ST_BIND
645 #define ELF_ST_TYPE ELF64_ST_TYPE
646 #define ELF_ST_INFO ELF64_ST_INFO
647 
648 #define AuxInfo Aux64Info
649 #endif
650 
651 #ifdef _KERNEL
652 
653 #define ELF_AUX_ENTRIES 8 /* Size of aux array passed to loader */
654 #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */
655 #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */
656 
657 #if defined(ELFSIZE) && (ELFSIZE == 64)
658 #define ELF_NO_ADDR ELF64_NO_ADDR
659 #elif defined(ELFSIZE) && (ELFSIZE == 32)
660 #define ELF_NO_ADDR ELF32_NO_ADDR
661 #endif
662 
663 #if defined(ELFSIZE)
664 struct elf_args {
665  Elf_Addr arg_entry; /* program entry point */
666  Elf_Addr arg_interp; /* Interpreter load address */
667  Elf_Addr arg_phaddr; /* program header address */
668  Elf_Addr arg_phentsize; /* Size of program header */
669  Elf_Addr arg_phnum; /* Number of program headers */
670 };
671 #endif
672 
673 #ifndef _LKM
674 #include "opt_execfmt.h"
675 #endif
676 
677 #ifdef EXEC_ELF32
678 int exec_elf32_makecmds __P((struct proc *, struct exec_package *));
679 int elf32_read_from __P((struct proc *, struct vnode *, u_long,
680  caddr_t, int));
681 void *elf32_copyargs __P((struct exec_package *, struct ps_strings *,
682  void *, void *));
683 #endif
684 
685 #ifdef EXEC_ELF64
686 int exec_elf64_makecmds __P((struct proc *, struct exec_package *));
687 int elf64_read_from __P((struct proc *, struct vnode *, u_long,
688  caddr_t, int));
689 void *elf64_copyargs __P((struct exec_package *, struct ps_strings *,
690  void *, void *));
691 #endif
692 
693 /* common */
694 int exec_elf_setup_stack __P((struct proc *, struct exec_package *));
695 
696 #endif /* _KERNEL */
697 
698 #endif /* __EXEC_ELF_H */
699 
uint8_t Elf_Byte
Definition: exec_elf.h:47
Elf64_Addr e_entry
Definition: exec_elf.h:114
uint32_t Elf64_Half
Definition: exec_elf.h:82
Elf64_Half n_namesz
Definition: exec_elf.h:563
Elf64_Xword d_tag
Definition: exec_elf.h:456
Elf32_Addr p_paddr
Definition: exec_elf.h:232
Elf_Byte st_other
Definition: exec_elf.h:347
Elf32_Word r_info
Definition: exec_elf.h:414
Elf32_Word st_value
Definition: exec_elf.h:337
Elf32_Word sh_flags
Definition: exec_elf.h:279
Elf32_Off e_shoff
Definition: exec_elf.h:99
Elf32_Word e_version
Definition: exec_elf.h:96
Elf32_Word e_flags
Definition: exec_elf.h:100
Elf64_Quarter e_shstrndx
Definition: exec_elf.h:123
Elf64_Xword r_info
Definition: exec_elf.h:435
Elf32_Word d_val
Definition: exec_elf.h:451
Elf32_Word n_namesz
Definition: exec_elf.h:557
Elf64_Quarter e_type
Definition: exec_elf.h:111
Elf32_Half e_type
Definition: exec_elf.h:94
Elf64_Half n_type
Definition: exec_elf.h:565
Elf32_Half e_shnum
Definition: exec_elf.h:105
Elf_Byte st_info
Definition: exec_elf.h:339
Elf32_Word sh_link
Definition: exec_elf.h:283
Elf64_Xword sh_flags
Definition: exec_elf.h:292
Elf32_Half e_phentsize
Definition: exec_elf.h:102
Elf64_Quarter e_shentsize
Definition: exec_elf.h:121
Elf32_Sword r_addend
Definition: exec_elf.h:420
Elf64_Sxword r_addend
Definition: exec_elf.h:436
Elf32_Word sh_addralign
Definition: exec_elf.h:285
uint32_t Elf32_Off
Definition: exec_elf.h:51
uint32_t Elf32_Addr
Definition: exec_elf.h:49
Elf64_Half st_name
Definition: exec_elf.h:345
Elf32_Word n_descsz
Definition: exec_elf.h:558
uint32_t Elf32_Word
Definition: exec_elf.h:55
Elf32_Word sh_info
Definition: exec_elf.h:284
Elf32_Word a_v
Definition: exec_elf.h:505
Elf32_Word r_offset
Definition: exec_elf.h:418
Elf64_Addr d_ptr
Definition: exec_elf.h:458
Elf64_Xword sh_entsize
Definition: exec_elf.h:299
Elf64_Xword r_info
Definition: exec_elf.h:430
uint16_t Elf64_Quarter
Definition: exec_elf.h:84
Elf_Byte st_other
Definition: exec_elf.h:340
Elf64_Xword p_align
Definition: exec_elf.h:247
Elf64_Quarter e_shnum
Definition: exec_elf.h:122
uint64_t Elf64_Word
Definition: exec_elf.h:75
Elf64_Half n_descsz
Definition: exec_elf.h:564
Elf32_Word d_tag
Definition: exec_elf.h:448
Elf64_Xword d_val
Definition: exec_elf.h:459
Elf32_Word sh_size
Definition: exec_elf.h:282
Elf64_Half p_flags
Definition: exec_elf.h:241
Elf32_Word r_info
Definition: exec_elf.h:419
Elf64_Xword st_size
Definition: exec_elf.h:350
uint64_t Elf64_Addr
Definition: exec_elf.h:60
Elf32_Addr sh_addr
Definition: exec_elf.h:280
Elf32_Word p_memsz
Definition: exec_elf.h:234
#define ELF_NIDENT
Definition: exec_elf.h:90
Elf32_Word p_align
Definition: exec_elf.h:236
Elf32_Half e_shstrndx
Definition: exec_elf.h:106
Elf32_Word r_offset
Definition: exec_elf.h:413
uint64_t Elf64_Off
Definition: exec_elf.h:62
Elf32_Addr p_vaddr
Definition: exec_elf.h:231
Elf32_Word p_filesz
Definition: exec_elf.h:233
int32_t Elf32_Sword
Definition: exec_elf.h:53
Elf32_Word sh_entsize
Definition: exec_elf.h:286
Elf64_Addr p_paddr
Definition: exec_elf.h:244
Elf64_Xword p_filesz
Definition: exec_elf.h:245
Elf64_Addr r_offset
Definition: exec_elf.h:434
Elf64_Half p_type
Definition: exec_elf.h:240
Elf64_Half sh_type
Definition: exec_elf.h:291
Elf64_Quarter e_machine
Definition: exec_elf.h:112
Elf_Byte st_info
Definition: exec_elf.h:346
Elf64_Off sh_offset
Definition: exec_elf.h:294
Elf32_Off e_phoff
Definition: exec_elf.h:98
Elf64_Quarter e_ehsize
Definition: exec_elf.h:118
Elf64_Xword sh_addralign
Definition: exec_elf.h:298
int64_t Elf64_Sxword
Definition: exec_elf.h:78
Elf64_Half sh_link
Definition: exec_elf.h:296
uint16_t Elf32_Half
Definition: exec_elf.h:57
Elf64_Quarter st_shndx
Definition: exec_elf.h:348
Elf32_Addr e_entry
Definition: exec_elf.h:97
Elf32_Word sh_name
Definition: exec_elf.h:277
Elf64_Half sh_name
Definition: exec_elf.h:290
Elf32_Word st_name
Definition: exec_elf.h:336
Elf32_Half e_shentsize
Definition: exec_elf.h:104
Elf32_Addr d_ptr
Definition: exec_elf.h:450
Elf32_Word p_type
Definition: exec_elf.h:229
Elf64_Xword p_memsz
Definition: exec_elf.h:246
Elf32_Word a_type
Definition: exec_elf.h:504
#define __P(x)
Definition: dec_prom.h:6
int64_t Elf64_Sword
Definition: exec_elf.h:73
Elf32_Half st_shndx
Definition: exec_elf.h:341
Elf32_Off p_offset
Definition: exec_elf.h:230
int32_t Elf64_Shalf
Definition: exec_elf.h:64
Elf64_Quarter e_phnum
Definition: exec_elf.h:120
Elf64_Half e_flags
Definition: exec_elf.h:117
Elf64_Half a_type
Definition: exec_elf.h:509
Elf64_Off e_shoff
Definition: exec_elf.h:116
Elf32_Half e_phnum
Definition: exec_elf.h:103
Elf64_Quarter e_phentsize
Definition: exec_elf.h:119
Elf32_Word sh_type
Definition: exec_elf.h:278
Elf64_Addr sh_addr
Definition: exec_elf.h:293
Elf32_Word st_size
Definition: exec_elf.h:338
uint64_t Elf64_Xword
Definition: exec_elf.h:80
Elf32_Half e_machine
Definition: exec_elf.h:95
Elf32_Half e_ehsize
Definition: exec_elf.h:101
Elf64_Xword a_v
Definition: exec_elf.h:510
Elf32_Word n_type
Definition: exec_elf.h:559
Elf64_Half sh_info
Definition: exec_elf.h:297
Elf32_Off sh_offset
Definition: exec_elf.h:281
Elf32_Word p_flags
Definition: exec_elf.h:235
Elf64_Xword sh_size
Definition: exec_elf.h:295
Elf64_Addr r_offset
Definition: exec_elf.h:429
Elf64_Off p_offset
Definition: exec_elf.h:242
Elf64_Addr st_value
Definition: exec_elf.h:349
Elf64_Off e_phoff
Definition: exec_elf.h:115
Elf64_Half e_version
Definition: exec_elf.h:113
Elf64_Addr p_vaddr
Definition: exec_elf.h:243

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