elf.h revision b68cf9d6
1/*
2 * Copyright 2002-2016 Haiku, Inc. All rights reserved.
3 * Distributed under the terms of the MIT License.
4 */
5#ifndef _ELF_H
6#define _ELF_H
7
8
9#include <SupportDefs.h>
10#include <ByteOrder.h>
11
12
13typedef uint32 Elf32_Addr;
14typedef uint16 Elf32_Half;
15typedef uint32 Elf32_Off;
16typedef int32 Elf32_Sword;
17typedef uint32 Elf32_Word;
18
19typedef Elf32_Half Elf32_Versym;
20
21typedef uint64 Elf64_Addr;
22typedef uint64 Elf64_Off;
23typedef uint16 Elf64_Half;
24typedef uint32 Elf64_Word;
25typedef int32 Elf64_Sword;
26typedef uint64 Elf64_Xword;
27typedef int64 Elf64_Sxword;
28
29typedef Elf64_Half Elf64_Versym;
30
31
32/*** ELF header ***/
33
34#define EI_NIDENT	16
35
36typedef struct {
37	uint8		e_ident[EI_NIDENT];
38	Elf32_Half	e_type;
39	Elf32_Half	e_machine;
40	Elf32_Word	e_version;
41	Elf32_Addr	e_entry;
42	Elf32_Off	e_phoff;
43	Elf32_Off	e_shoff;
44	Elf32_Word	e_flags;
45	Elf32_Half	e_ehsize;
46	Elf32_Half	e_phentsize;
47	Elf32_Half	e_phnum;
48	Elf32_Half	e_shentsize;
49	Elf32_Half	e_shnum;
50	Elf32_Half	e_shstrndx;
51
52#ifdef __cplusplus
53	bool IsHostEndian() const;
54#endif
55} Elf32_Ehdr;
56
57typedef struct {
58	uint8		e_ident[EI_NIDENT];
59	Elf64_Half	e_type;
60	Elf64_Half	e_machine;
61	Elf64_Word	e_version;
62	Elf64_Addr	e_entry;
63	Elf64_Off	e_phoff;
64	Elf64_Off	e_shoff;
65	Elf64_Word	e_flags;
66	Elf64_Half	e_ehsize;
67	Elf64_Half	e_phentsize;
68	Elf64_Half	e_phnum;
69	Elf64_Half	e_shentsize;
70	Elf64_Half	e_shnum;
71	Elf64_Half	e_shstrndx;
72
73#ifdef __cplusplus
74	bool IsHostEndian() const;
75#endif
76} Elf64_Ehdr;
77
78/* e_ident[] indices */
79#define EI_MAG0		0
80#define EI_MAG1		1
81#define EI_MAG2		2
82#define EI_MAG3		3
83#define EI_CLASS	4
84#define EI_DATA		5
85#define EI_VERSION	6
86#define EI_PAD		7
87
88/* Values for the magic number bytes. */
89#define ELFMAG0		0x7f
90#define ELFMAG1		'E'
91#define ELFMAG2		'L'
92#define ELFMAG3		'F'
93#define ELFMAG		"\x7f""ELF"
94#define SELFMAG		4
95
96/* e_type (Object file type) */
97#define ET_NONE			0 /* No file type */
98#define ET_REL			1 /* Relocatable file */
99#define ET_EXEC			2 /* Executable file */
100#define ET_DYN			3 /* Shared-object file */
101#define ET_CORE			4 /* Core file */
102#define ET_LOOS			0xfe00 /* OS-specific range start */
103#define ET_HIOS			0xfeff /* OS-specific range end */
104#define ET_LOPROC		0xff00 /* Processor-specific range start */
105#define ET_HIPROC		0xffff /* Processor-specific range end */
106
107/* e_machine (Architecture) */
108#define EM_NONE			0 /* No machine */
109#define EM_M32			1 /* AT&T WE 32100 */
110#define EM_SPARC		2 /* Sparc */
111#define EM_386			3 /* Intel 80386 */
112#define EM_68K			4 /* Motorola m68k family */
113#define EM_88K			5 /* Motorola m88k family */
114#define EM_486			6 /* Intel 80486, Reserved for future use */
115#define EM_860			7 /* Intel 80860 */
116#define EM_MIPS			8 /* MIPS R3000 (officially, big-endian only) */
117#define EM_S370			9 /* IBM System/370 */
118#define EM_MIPS_RS3_LE	10 /* MIPS R3000 little-endian, Deprecated */
119#define EM_PARISC		15 /* HPPA */
120#define EM_VPP550		17 /* Fujitsu VPP500 */
121#define EM_SPARC32PLUS	18 /* Sun "v8plus" */
122#define EM_960			19 /* Intel 80960 */
123#define EM_PPC			20 /* PowerPC */
124#define EM_PPC64		21 /* 64-bit PowerPC */
125#define EM_S390			22 /* IBM S/390 */
126#define EM_V800			36 /* NEC V800 series */
127#define EM_FR20			37 /* Fujitsu FR20 */
128#define EM_RH32			38 /* TRW RH32 */
129#define EM_MCORE		39 /* Motorola M*Core */
130#define EM_RCE			39 /* Old name for MCore */
131#define EM_ARM			40 /* ARM */
132#define EM_OLD_ALPHA	41 /* Digital Alpha */
133#define EM_SH			42 /* Renesas / SuperH SH */
134#define EM_SPARCV9		43 /* SPARC v9 64-bit */
135#define EM_TRICORE		44 /* Siemens Tricore embedded processor */
136#define EM_ARC			45 /* ARC Cores */
137#define EM_H8_300		46 /* Renesas H8/300 */
138#define EM_H8_300H		47 /* Renesas H8/300H */
139#define EM_H8S			48 /* Renesas H8S */
140#define EM_H8_500		49 /* Renesas H8/500 */
141#define EM_IA_64		50 /* Intel IA-64 Processor */
142#define EM_MIPS_X		51 /* Stanford MIPS-X */
143#define EM_COLDFIRE		52 /* Motorola Coldfire */
144#define EM_68HC12		53 /* Motorola M68HC12 */
145#define EM_MMA			54 /* Fujitsu Multimedia Accelerator */
146#define EM_PCP			55 /* Siemens PCP */
147#define EM_NCPU			56 /* Sony nCPU embedded RISC processor */
148#define EM_NDR1			57 /* Denso NDR1 microprocesspr */
149#define EM_STARCORE		58 /* Motorola Star*Core processor */
150#define EM_ME16			59 /* Toyota ME16 processor */
151#define EM_ST100		60 /* STMicroelectronics ST100 processor */
152#define EM_TINYJ		61 /* Advanced Logic Corp. TinyJ embedded processor */
153#define EM_X86_64		62 /* Advanced Micro Devices X86-64 processor */
154#define EM_PDSP			63 /* Sony DSP Processor */
155
156#define EM_FX66			66 /* Siemens FX66 microcontroller */
157#define EM_ST9PLUS		67 /* STMicroelectronics ST9+ 8/16 mc */
158#define EM_ST7			68 /* STmicroelectronics ST7 8 bit mc */
159#define EM_68HC16		69 /* Motorola MC68HC16 microcontroller */
160#define EM_68HC11		70 /* Motorola MC68HC11 microcontroller */
161#define EM_68HC08		71 /* Motorola MC68HC08 microcontroller */
162#define EM_68HC05		72 /* Motorola MC68HC05 microcontroller */
163#define EM_SVX			73 /* Silicon Graphics SVx */
164#define EM_ST19			74 /* STMicroelectronics ST19 8 bit mc */
165#define EM_VAX			75 /* Digital VAX */
166#define EM_CRIS			76 /* Axis Communications 32-bit embedded processor */
167#define EM_JAVELIN		77 /* Infineon Technologies 32-bit embedded processor */
168#define EM_FIREPATH		78 /* Element 14 64-bit DSP Processor */
169#define EM_ZSP			79 /* LSI Logic 16-bit DSP Processor */
170#define EM_MMIX			80 /* Donald Knuth's educational 64-bit processor */
171#define EM_HUANY		81 /* Harvard University machine-independent object files */
172#define EM_PRISM		82 /* SiTera Prism */
173#define EM_AVR			83 /* Atmel AVR 8-bit microcontroller */
174#define EM_FR30			84 /* Fujitsu FR30 */
175#define EM_D10V			85 /* Mitsubishi D10V */
176#define EM_D30V			86 /* Mitsubishi D30V */
177#define EM_V850			87 /* NEC v850 */
178#define EM_M32R			88 /* Mitsubishi M32R */
179#define EM_MN10300		89 /* Matsushita MN10300 */
180#define EM_MN10200		90 /* Matsushita MN10200 */
181#define EM_PJ			91 /* picoJava */
182#define EM_OPENRISC		92 /* OpenRISC 32-bit embedded processor */
183#define EM_ARC_A5		93 /* ARC Cores Tangent-A5 */
184#define EM_XTENSA		94 /* Tensilica Xtensa Architecture */
185#define EM_NUM			95
186
187/* architecture class (EI_CLASS) */
188#define ELFCLASSNONE	0
189#define ELFCLASS32		1
190#define ELFCLASS64		2
191
192/* endian (EI_DATA) */
193#define ELFDATANONE	0	/* invalid */
194#define ELFDATA2LSB	1	/* little endian */
195#define ELFDATA2MSB	2	/* big endian */
196
197/* ELF version (EI_VERSION) */
198#define EV_NONE		0	/* invalid */
199#define EV_CURRENT	1	/* current version */
200
201/*** section header ***/
202
203typedef struct {
204	Elf32_Word	sh_name;
205	Elf32_Word	sh_type;
206	Elf32_Word	sh_flags;
207	Elf32_Addr	sh_addr;
208	Elf32_Off	sh_offset;
209	Elf32_Word	sh_size;
210	Elf32_Word	sh_link;
211	Elf32_Word	sh_info;
212	Elf32_Word	sh_addralign;
213	Elf32_Word	sh_entsize;
214} Elf32_Shdr;
215
216typedef struct {
217	Elf64_Word	sh_name;
218	Elf64_Word	sh_type;
219	Elf64_Xword	sh_flags;
220	Elf64_Addr	sh_addr;
221	Elf64_Off	sh_offset;
222	Elf64_Xword	sh_size;
223	Elf64_Word	sh_link;
224	Elf64_Word	sh_info;
225	Elf64_Xword	sh_addralign;
226	Elf64_Xword	sh_entsize;
227} Elf64_Shdr;
228
229/* special section indices */
230#define SHN_UNDEF		0
231#define SHN_LORESERVE	0xff00
232#define SHN_LOPROC		0xff00
233#define SHN_HIPROC		0xff1f
234#define SHN_ABS			0xfff1
235#define SHN_COMMON		0xfff2
236#define SHN_HIRESERVE	0xffff
237
238/* section header type */
239#define SHT_NULL		0
240#define SHT_PROGBITS	1
241#define SHT_SYMTAB		2
242#define SHT_STRTAB		3
243#define SHT_RELA		4
244#define SHT_HASH		5
245#define SHT_DYNAMIC		6
246#define SHT_NOTE		7
247#define SHT_NOBITS		8
248#define SHT_REL			9
249#define SHT_SHLIB		10
250#define SHT_DYNSYM		11
251
252#define SHT_GNU_verdef	0x6ffffffd    /* version definition section */
253#define SHT_GNU_verneed	0x6ffffffe    /* version needs section */
254#define SHT_GNU_versym	0x6fffffff    /* version symbol table */
255
256#define SHT_LOPROC		0x70000000
257#define SHT_HIPROC		0x7fffffff
258#define SHT_LOUSER		0x80000000
259#define SHT_HIUSER		0xffffffff
260
261/* section header flags */
262#define SHF_WRITE		1
263#define SHF_ALLOC		2
264#define SHF_EXECINSTR	4
265
266#define SHF_MASKPROC	0xf0000000
267
268
269/*** program header ***/
270
271typedef struct {
272	Elf32_Word	p_type;
273	Elf32_Off	p_offset;	/* offset from the beginning of the file of the segment */
274	Elf32_Addr	p_vaddr;	/* virtual address for the segment in memory */
275	Elf32_Addr	p_paddr;
276	Elf32_Word	p_filesz;	/* the size of the segment in the file */
277	Elf32_Word	p_memsz;	/* the size of the segment in memory */
278	Elf32_Word	p_flags;
279	Elf32_Word	p_align;
280
281#ifdef __cplusplus
282	bool IsReadWrite() const;
283	bool IsExecutable() const;
284#endif
285} Elf32_Phdr;
286
287typedef struct {
288	Elf64_Word	p_type;
289	Elf64_Word	p_flags;
290	Elf64_Off	p_offset;	/* offset from the beginning of the file of the segment */
291	Elf64_Addr	p_vaddr;	/* virtual address for the segment in memory */
292	Elf64_Addr	p_paddr;
293	Elf64_Xword	p_filesz;	/* the size of the segment in the file */
294	Elf64_Xword	p_memsz;	/* the size of the segment in memory */
295	Elf64_Xword	p_align;
296
297#ifdef __cplusplus
298	bool IsReadWrite() const;
299	bool IsExecutable() const;
300#endif
301} Elf64_Phdr;
302
303/* program header segment types */
304#define PT_NULL			0
305#define PT_LOAD			1
306#define PT_DYNAMIC		2
307#define PT_INTERP		3
308#define PT_NOTE			4
309#define PT_SHLIB		5
310#define PT_PHDR			6
311#define PT_TLS			7
312#define PT_STACK		0x6474e551
313#define PT_RELRO		0x6474e552
314
315#define PT_LOPROC		0x70000000
316#define PT_ARM_UNWIND	0x70000001
317#define PT_HIPROC		0x7fffffff
318
319/* program header segment flags */
320#define PF_EXECUTE	0x1
321#define PF_WRITE	0x2
322#define PF_READ		0x4
323#define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ)
324
325#define PF_MASKPROC	0xf0000000
326
327
328/* symbol table entry */
329
330typedef struct {
331	Elf32_Word	st_name;
332	Elf32_Addr	st_value;
333	Elf32_Word	st_size;
334	uint8		st_info;
335	uint8 		st_other;
336	Elf32_Half	st_shndx;
337
338#ifdef __cplusplus
339	uint8 Bind() const;
340	uint8 Type() const;
341	void SetInfo(uint8 bind, uint8 type);
342#endif
343} Elf32_Sym;
344
345typedef struct {
346	Elf64_Word	st_name;
347	uint8		st_info;
348	uint8		st_other;
349	Elf64_Half	st_shndx;
350	Elf64_Addr	st_value;
351	Elf64_Xword	st_size;
352
353#ifdef __cplusplus
354	uint8 Bind() const;
355	uint8 Type() const;
356	void SetInfo(uint8 bind, uint8 type);
357#endif
358} Elf64_Sym;
359
360#define ELF32_ST_BIND(i) ((i) >> 4)
361#define ELF32_ST_TYPE(i) ((i) & 0xf)
362#define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf))
363
364#define ELF64_ST_BIND(i) ((i) >> 4)
365#define ELF64_ST_TYPE(i) ((i) & 0xf)
366#define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf))
367
368/* symbol types */
369#define STT_NOTYPE 0
370#define STT_OBJECT 1
371#define STT_FUNC 2
372#define STT_SECTION 3
373#define STT_FILE 4
374#define STT_TLS		6
375#define STT_LOPROC 13
376#define STT_HIPROC 15
377
378/* symbol binding */
379#define STB_LOCAL 0
380#define STB_GLOBAL 1
381#define STB_WEAK 2
382#define STB_LOPROC 13
383#define STB_HIPROC 15
384
385/* special symbol indices */
386#define STN_UNDEF 0
387
388
389/* relocation table entry */
390
391typedef struct {
392	Elf32_Addr r_offset;
393	Elf32_Word r_info;
394
395#ifdef __cplusplus
396	uint8 SymbolIndex() const;
397	uint8 Type() const;
398#endif
399} Elf32_Rel;
400
401typedef struct {
402	Elf64_Addr	r_offset;
403	Elf64_Xword	r_info;
404
405#ifdef __cplusplus
406	uint8 SymbolIndex() const;
407	uint8 Type() const;
408#endif
409} Elf64_Rel;
410
411#ifdef __cplusplus
412typedef struct Elf32_Rela : public Elf32_Rel {
413#else
414typedef struct {
415	Elf32_Addr r_offset;
416	Elf32_Word r_info;
417#endif
418	Elf32_Sword r_addend;
419} Elf32_Rela;
420
421#ifdef __cplusplus
422typedef struct Elf64_Rela : public Elf64_Rel {
423#else
424typedef struct {
425	Elf64_Addr		r_offset;
426	Elf64_Xword		r_info;
427#endif
428	Elf64_Sxword	r_addend;
429} Elf64_Rela;
430
431#define ELF32_R_SYM(i) ((i) >> 8)
432#define ELF32_R_TYPE(i) ((unsigned char)(i))
433#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t))
434
435#define ELF64_R_SYM(i) ((i) >> 32)
436#define ELF64_R_TYPE(i) ((i) & 0xffffffffL)
437#define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL))
438
439
440/* dynamic section entry */
441
442typedef struct {
443	Elf32_Sword d_tag;
444	union {
445		Elf32_Word d_val;
446		Elf32_Addr d_ptr;
447	} d_un;
448} Elf32_Dyn;
449
450typedef struct {
451	Elf64_Sxword d_tag;
452	union {
453		Elf64_Xword	d_val;
454		Elf64_Addr	d_ptr;
455	} d_un;
456} Elf64_Dyn;
457
458/* dynamic entry type */
459#define DT_NULL				0
460#define DT_NEEDED			1
461#define DT_PLTRELSZ			2
462#define DT_PLTGOT			3
463#define DT_HASH				4
464#define DT_STRTAB			5
465#define DT_SYMTAB			6
466#define DT_RELA				7
467#define DT_RELASZ			8
468#define DT_RELAENT			9
469#define DT_STRSZ			10
470#define DT_SYMENT			11
471#define DT_INIT				12
472#define DT_FINI				13
473#define DT_SONAME			14
474#define DT_RPATH			15
475#define DT_SYMBOLIC			16
476#define DT_REL				17
477#define DT_RELSZ			18
478#define DT_RELENT			19
479#define DT_PLTREL			20
480#define DT_DEBUG			21
481#define DT_TEXTREL			22
482#define DT_JMPREL			23
483#define DT_BIND_NOW			24	/* no lazy binding */
484#define DT_INIT_ARRAY		25	/* init function array */
485#define DT_FINI_ARRAY		26	/* termination function array */
486#define DT_INIT_ARRAYSZ		27	/* init function array size */
487#define DT_FINI_ARRAYSZ		28	/* termination function array size */
488#define DT_RUNPATH			29	/* library search path (supersedes DT_RPATH) */
489#define DT_FLAGS			30	/* flags (see below) */
490#define DT_ENCODING			32
491#define DT_PREINIT_ARRAY	32	/* preinitialization array */
492#define DT_PREINIT_ARRAYSZ	33	/* preinitialization array size */
493
494#define DT_VERSYM       0x6ffffff0	/* symbol version table */
495#define DT_VERDEF		0x6ffffffc	/* version definition table */
496#define DT_VERDEFNUM	0x6ffffffd	/* number of version definitions */
497#define DT_VERNEED		0x6ffffffe 	/* table with needed versions */
498#define DT_VERNEEDNUM	0x6fffffff	/* number of needed versions */
499
500#define DT_LOPROC		0x70000000
501#define DT_HIPROC		0x7fffffff
502
503/* DT_FLAGS values */
504#define DF_ORIGIN		0x01
505#define DF_SYMBOLIC		0x02
506#define DF_TEXTREL		0x04
507#define DF_BIND_NOW		0x08
508#define DF_STATIC_TLS	0x10
509
510
511/* version definition section */
512
513typedef struct {
514	Elf32_Half	vd_version;		/* version revision */
515	Elf32_Half	vd_flags;		/* version information flags */
516	Elf32_Half	vd_ndx;			/* version index as specified in the
517								   symbol version table */
518	Elf32_Half	vd_cnt;			/* number of associated verdaux entries */
519	Elf32_Word	vd_hash;		/* version name hash value */
520	Elf32_Word	vd_aux;			/* byte offset to verdaux array */
521	Elf32_Word	vd_next;		/* byte offset to next verdef entry */
522} Elf32_Verdef;
523
524typedef struct {
525	Elf64_Half	vd_version;		/* version revision */
526	Elf64_Half	vd_flags;		/* version information flags */
527	Elf64_Half	vd_ndx;			/* version index as specified in the
528								   symbol version table */
529	Elf64_Half	vd_cnt;			/* number of associated verdaux entries */
530	Elf64_Word	vd_hash;		/* version name hash value */
531	Elf64_Word	vd_aux;			/* byte offset to verdaux array */
532	Elf64_Word	vd_next;		/* byte offset to next verdef entry */
533} Elf64_Verdef;
534
535/* values for vd_version (version revision) */
536#define VER_DEF_NONE		0		/* no version */
537#define VER_DEF_CURRENT		1		/* current version */
538#define VER_DEF_NUM			2		/* given version number */
539
540/* values for vd_flags (version information flags) */
541#define VER_FLG_BASE		0x1		/* version definition of file itself */
542#define VER_FLG_WEAK		0x2 	/* weak version identifier */
543
544/* values for versym symbol index */
545#define VER_NDX_LOCAL		0		/* symbol is local */
546#define VER_NDX_GLOBAL		1		/* symbol is global/unversioned */
547#define VER_NDX_INITIAL		2		/* initial version -- that's the one given
548									   to symbols when a library becomes
549									   versioned; handled by the linker (and
550									   runtime loader) similar to
551									   VER_NDX_GLOBAL */
552#define VER_NDX_LORESERVE	0xff00	/* beginning of reserved entries */
553#define VER_NDX_ELIMINATE	0xff01	/* symbol is to be eliminated */
554
555#define VER_NDX_FLAG_HIDDEN	0x8000	/* flag: version is hidden */
556#define VER_NDX_MASK		0x7fff	/* mask to get the actual version index */
557#define VER_NDX(x)			((x) & VER_NDX_MASK)
558
559
560/* auxiliary version information */
561
562typedef struct {
563	Elf32_Word	vda_name;		/* string table offset to version or dependency
564								   name */
565	Elf32_Word	vda_next;		/* byte offset to next verdaux entry */
566} Elf32_Verdaux;
567
568typedef struct {
569	Elf64_Word	vda_name;		/* string table offset to version or dependency
570								   name */
571	Elf64_Word	vda_next;		/* byte offset to next verdaux entry */
572} Elf64_Verdaux;
573
574
575/* version dependency section */
576
577typedef struct {
578	Elf32_Half	vn_version;		/* version of structure */
579	Elf32_Half	vn_cnt;			/* number of associated vernaux entries */
580	Elf32_Word	vn_file;		/* byte offset to file name for this
581								   dependency */
582	Elf32_Word	vn_aux;			/* byte offset to vernaux array */
583	Elf32_Word	vn_next;		/* byte offset to next verneed entry */
584} Elf32_Verneed;
585
586typedef struct {
587	Elf64_Half	vn_version;		/* version of structure */
588	Elf64_Half	vn_cnt;			/* number of associated vernaux entries */
589	Elf64_Word	vn_file;		/* byte offset to file name for this
590								   dependency */
591	Elf64_Word	vn_aux;			/* byte offset to vernaux array */
592	Elf64_Word	vn_next;		/* byte offset to next verneed entry */
593} Elf64_Verneed;
594
595/* values for vn_version (version revision) */
596#define VER_NEED_NONE		0	/* no version */
597#define VER_NEED_CURRENT	1	/* current version */
598#define VER_NEED_NUM		2	/* given version number */
599
600
601/* auxiliary needed version information */
602
603typedef struct {
604	Elf32_Word	vna_hash;		/* dependency name hash value */
605	Elf32_Half	vna_flags;		/* dependency specific information flags */
606	Elf32_Half	vna_other;		/* version index as specified in the symbol
607								   version table */
608	Elf32_Word	vna_name;		/* string table offset to dependency name */
609	Elf32_Word	vna_next;		/* byte offset to next vernaux entry */
610} Elf32_Vernaux;
611
612typedef struct {
613	Elf64_Word	vna_hash;		/* dependency name hash value */
614	Elf64_Half	vna_flags;		/* dependency specific information flags */
615	Elf64_Half	vna_other;		/* version index as specified in the symbol
616								   version table */
617	Elf64_Word	vna_name;		/* string table offset to dependency name */
618	Elf64_Word	vna_next;		/* byte offset to next vernaux entry */
619} Elf64_Vernaux;
620
621/* values for vna_flags */
622#define VER_FLG_WEAK	0x2		/* weak version identifier */
623
624
625/*** core files ***/
626
627/* note section header */
628
629typedef struct {
630	Elf32_Word n_namesz;		/* length of the note's name */
631	Elf32_Word n_descsz;		/* length of the note's descriptor */
632	Elf32_Word n_type;			/* note type */
633} Elf32_Nhdr;
634
635typedef struct {
636	Elf64_Word n_namesz;		/* length of the note's name */
637	Elf64_Word n_descsz;		/* length of the note's descriptor */
638	Elf64_Word n_type;			/* note type */
639} Elf64_Nhdr;
640
641/* values for note name */
642#define ELF_NOTE_CORE		"CORE"
643#define ELF_NOTE_HAIKU		"Haiku"
644
645/* values for note type (n_type) */
646/* ELF_NOTE_CORE/... */
647#define NT_FILE				0x46494c45 /* mapped files */
648
649/* ELF_NOTE_HAIKU/... */
650#define NT_TEAM				0x7465616d 	/* team */
651#define NT_AREAS			0x61726561 	/* areas */
652#define NT_IMAGES			0x696d6167 	/* images */
653#define NT_THREADS			0x74687264 	/* threads */
654#define NT_SYMBOLS			0x73796d73 	/* symbols */
655
656/* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */
657typedef struct {
658	int32		nt_id;				/* team ID */
659	int32		nt_uid;				/* team owner ID */
660	int32		nt_gid;				/* team group ID */
661} Elf32_Note_Team;
662
663typedef Elf32_Note_Team Elf64_Note_Team;
664
665/* NT_AREAS:
666 * uint32 count;
667 * uint32 entrySize;
668 * Elf32_Note_Area_Entry[count];
669 * char[] names
670 */
671typedef struct {
672	int32		na_id;				/* area ID */
673	uint32		na_lock;			/* lock type (B_NO_LOCK, ...) */
674	uint32		na_protection;		/* protection (B_READ_AREA | ...) */
675	uint32		na_base;			/* area base address */
676	uint32		na_size;			/* area size */
677	uint32		na_ram_size;		/* physical memory used */
678} Elf32_Note_Area_Entry;
679
680/* NT_AREAS:
681 * uint32 count;
682 * uint32 entrySize;
683 * Elf64_Note_Area_Entry[count];
684 * char[] names
685 */
686typedef struct {
687	int32		na_id;				/* area ID */
688	uint32		na_lock;			/* lock type (B_NO_LOCK, ...) */
689	uint32		na_protection;		/* protection (B_READ_AREA | ...) */
690	uint32		na_pad1;
691	uint64		na_base;			/* area base address */
692	uint64		na_size;			/* area size */
693	uint64		na_ram_size;		/* physical memory used */
694} Elf64_Note_Area_Entry;
695
696/* NT_IMAGES:
697 * uint32 count;
698 * uint32 entrySize;
699 * Elf32_Note_Image_Entry[count];
700 * char[] names
701 */
702typedef struct {
703	int32		ni_id;				/* image ID */
704	int32		ni_type;			/* image type (B_APP_IMAGE, ...) */
705	uint32		ni_init_routine;	/* address of init function */
706	uint32		ni_term_routine;	/* address of termination function */
707	int32		ni_device;			/* device ID of mapped file */
708	int64		ni_node;			/* node ID of mapped file */
709	uint32		ni_text_base;		/* base address of text segment */
710	uint32		ni_text_size;		/* size of text segment */
711	int32		ni_text_delta;		/* delta of the text segment relative to
712									   load address specified in the ELF file */
713	uint32		ni_data_base;		/* base address of data segment */
714	uint32		ni_data_size;		/* size of data segment */
715	uint32		ni_symbol_table;	/* address of dynamic symbol table */
716	uint32		ni_symbol_hash;		/* address of dynamic symbol hash */
717	uint32		ni_string_table;	/* address of dynamic string table */
718} Elf32_Note_Image_Entry;
719
720/* NT_IMAGES:
721 * uint32 count;
722 * uint32 entrySize;
723 * Elf64_Note_Image_Entry[count];
724 * char[] names
725 */
726typedef struct {
727	int32		ni_id;				/* image ID */
728	int32		ni_type;			/* image type (B_APP_IMAGE, ...) */
729	uint64		ni_init_routine;	/* address of init function */
730	uint64		ni_term_routine;	/* address of termination function */
731	uint32		ni_pad1;
732	int32		ni_device;			/* device ID of mapped file */
733	int64		ni_node;			/* node ID of mapped file */
734	uint64		ni_text_base;		/* base address of text segment */
735	uint64		ni_text_size;		/* size of text segment */
736	int64		ni_text_delta;		/* delta of the text segment relative to
737									   load address specified in the ELF file */
738	uint64		ni_data_base;		/* base address of data segment */
739	uint64		ni_data_size;		/* size of data segment */
740	uint64		ni_symbol_table;	/* address of dynamic symbol table */
741	uint64		ni_symbol_hash;		/* address of dynamic symbol hash */
742	uint64		ni_string_table;	/* address of dynamic string table */
743} Elf64_Note_Image_Entry;
744
745/* NT_THREADS:
746 * uint32 count;
747 * uint32 entrySize;
748 * uint32 cpuStateSize;
749 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count];
750 * char[] names
751 */
752typedef struct {
753	int32		nth_id;				/* thread ID */
754	int32		nth_state;			/* thread state (B_THREAD_RUNNING, ...) */
755	int32		nth_priority;		/* thread priority */
756	uint32		nth_stack_base;		/* thread stack base address */
757	uint32		nth_stack_end;		/* thread stack end address */
758} Elf32_Note_Thread_Entry;
759
760/* NT_THREADS:
761 * uint32 count;
762 * uint32 entrySize;
763 * uint32 cpuStateSize;
764 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count];
765 * char[] names
766 */
767typedef struct {
768	int32		nth_id;				/* thread ID */
769	int32		nth_state;			/* thread state (B_THREAD_RUNNING, ...) */
770	int32		nth_priority;		/* thread priority */
771	uint32		nth_pad1;
772	uint64		nth_stack_base;		/* thread stack base address */
773	uint64		nth_stack_end;		/* thread stack end address */
774} Elf64_Note_Thread_Entry;
775
776/* NT_SYMBOLS:
777 * int32 imageId;
778 * uint32 symbolCount;
779 * uint32 entrySize;
780 * Elf{32,64}_Sym[count];
781 * char[] strings
782 */
783
784
785/*** inline functions ***/
786
787#ifdef __cplusplus
788
789inline bool
790Elf32_Ehdr::IsHostEndian() const
791{
792#if B_HOST_IS_LENDIAN
793	return e_ident[EI_DATA] == ELFDATA2LSB;
794#elif B_HOST_IS_BENDIAN
795	return e_ident[EI_DATA] == ELFDATA2MSB;
796#endif
797}
798
799
800inline bool
801Elf64_Ehdr::IsHostEndian() const
802{
803#if B_HOST_IS_LENDIAN
804	return e_ident[EI_DATA] == ELFDATA2LSB;
805#elif B_HOST_IS_BENDIAN
806	return e_ident[EI_DATA] == ELFDATA2MSB;
807#endif
808}
809
810
811inline bool
812Elf32_Phdr::IsReadWrite() const
813{
814	return !(~p_flags & (PF_READ | PF_WRITE));
815}
816
817
818inline bool
819Elf32_Phdr::IsExecutable() const
820{
821	return (p_flags & PF_EXECUTE) != 0;
822}
823
824
825inline bool
826Elf64_Phdr::IsReadWrite() const
827{
828	return !(~p_flags & (PF_READ | PF_WRITE));
829}
830
831
832inline bool
833Elf64_Phdr::IsExecutable() const
834{
835	return (p_flags & PF_EXECUTE) != 0;
836}
837
838
839inline uint8
840Elf32_Sym::Bind() const
841{
842	return ELF32_ST_BIND(st_info);
843}
844
845
846inline uint8
847Elf32_Sym::Type() const
848{
849	return ELF32_ST_TYPE(st_info);
850}
851
852
853inline void
854Elf32_Sym::SetInfo(uint8 bind, uint8 type)
855{
856	st_info = ELF32_ST_INFO(bind, type);
857}
858
859
860inline uint8
861Elf64_Sym::Bind() const
862{
863	return ELF64_ST_BIND(st_info);
864}
865
866
867inline uint8
868Elf64_Sym::Type() const
869{
870	return ELF64_ST_TYPE(st_info);
871}
872
873
874inline void
875Elf64_Sym::SetInfo(uint8 bind, uint8 type)
876{
877	st_info = ELF64_ST_INFO(bind, type);
878}
879
880
881inline uint8
882Elf32_Rel::SymbolIndex() const
883{
884	return ELF32_R_SYM(r_info);
885}
886
887
888inline uint8
889Elf32_Rel::Type() const
890{
891	return ELF32_R_TYPE(r_info);
892}
893
894
895inline uint8
896Elf64_Rel::SymbolIndex() const
897{
898	return ELF64_R_SYM(r_info);
899}
900
901
902inline uint8
903Elf64_Rel::Type() const
904{
905	return ELF64_R_TYPE(r_info);
906}
907
908#endif	/* __cplusplus */
909
910
911#endif	/* _ELF_H */
912