Annotation of sys/sys/exec_elf.h, Revision 1.1.1.1
1.1 nbrk 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_ */
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