elf.h revision dd485ed4
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#define EM_FX66			66 /* Siemens FX66 microcontroller */
156#define EM_ST9PLUS		67 /* STMicroelectronics ST9+ 8/16 mc */
157#define EM_ST7			68 /* STmicroelectronics ST7 8 bit mc */
158#define EM_68HC16		69 /* Motorola MC68HC16 microcontroller */
159#define EM_68HC11		70 /* Motorola MC68HC11 microcontroller */
160#define EM_68HC08		71 /* Motorola MC68HC08 microcontroller */
161#define EM_68HC05		72 /* Motorola MC68HC05 microcontroller */
162#define EM_SVX			73 /* Silicon Graphics SVx */
163#define EM_ST19			74 /* STMicroelectronics ST19 8 bit mc */
164#define EM_VAX			75 /* Digital VAX */
165#define EM_CRIS			76 /* Axis Communications 32-bit embedded processor */
166#define EM_JAVELIN		77 /* Infineon Technologies 32-bit embedded processor */
167#define EM_FIREPATH		78 /* Element 14 64-bit DSP Processor */
168#define EM_ZSP			79 /* LSI Logic 16-bit DSP Processor */
169#define EM_MMIX			80 /* Donald Knuth's educational 64-bit processor */
170#define EM_HUANY		81 /* Harvard University machine-independent object files */
171#define EM_PRISM		82 /* SiTera Prism */
172#define EM_AVR			83 /* Atmel AVR 8-bit microcontroller */
173#define EM_FR30			84 /* Fujitsu FR30 */
174#define EM_D10V			85 /* Mitsubishi D10V */
175#define EM_D30V			86 /* Mitsubishi D30V */
176#define EM_V850			87 /* NEC v850 */
177#define EM_M32R			88 /* Mitsubishi M32R */
178#define EM_MN10300		89 /* Matsushita MN10300 */
179#define EM_MN10200		90 /* Matsushita MN10200 */
180#define EM_PJ			91 /* picoJava */
181#define EM_OPENRISC		92 /* OpenRISC 32-bit embedded processor */
182#define EM_ARC_A5		93 /* ARC Cores Tangent-A5 */
183#define EM_XTENSA		94 /* Tensilica Xtensa Architecture */
184#define EM_VIDCORE		95 /* Alphamosaic VideoCore */
185#define EM_CR			103 /* Nat. Semi. CompactRISC microprocessor */
186#define EM_BLACKFIN		106 /* Analog Devices Blackfin (DSP) processor */
187#define EM_ARCA			109 /* Arca RISC Microprocessor */
188#define EM_VIDCORE3		137 /* Broadcom VideoCore III */
189#define EM_AARCH64		183 /* ARM 64 bit */
190#define EM_AVR32		185 /* AVR-32 */
191#define EM_STM8			186 /* ST STM8S */
192#define EM_CUDA			190 /* Nvidia CUDA */
193#define EM_VIDCORE5		198 /* Broadcom VideoCore V */
194#define EM_NORC			218 /* Nanoradio Optimized RISC */
195#define EM_AMDGPU		224 /* AMD GPU */
196#define EM_RISCV		243 /* RISC-V */
197#define EM_BPF			247 /* Linux kernel bpf virtual machine */
198
199/* architecture class (EI_CLASS) */
200#define ELFCLASSNONE	0
201#define ELFCLASS32		1
202#define ELFCLASS64		2
203
204/* endian (EI_DATA) */
205#define ELFDATANONE	0	/* invalid */
206#define ELFDATA2LSB	1	/* little endian */
207#define ELFDATA2MSB	2	/* big endian */
208
209/* ELF version (EI_VERSION) */
210#define EV_NONE		0	/* invalid */
211#define EV_CURRENT	1	/* current version */
212
213/*** section header ***/
214
215typedef struct {
216	Elf32_Word	sh_name;
217	Elf32_Word	sh_type;
218	Elf32_Word	sh_flags;
219	Elf32_Addr	sh_addr;
220	Elf32_Off	sh_offset;
221	Elf32_Word	sh_size;
222	Elf32_Word	sh_link;
223	Elf32_Word	sh_info;
224	Elf32_Word	sh_addralign;
225	Elf32_Word	sh_entsize;
226} Elf32_Shdr;
227
228typedef struct {
229	Elf64_Word	sh_name;
230	Elf64_Word	sh_type;
231	Elf64_Xword	sh_flags;
232	Elf64_Addr	sh_addr;
233	Elf64_Off	sh_offset;
234	Elf64_Xword	sh_size;
235	Elf64_Word	sh_link;
236	Elf64_Word	sh_info;
237	Elf64_Xword	sh_addralign;
238	Elf64_Xword	sh_entsize;
239} Elf64_Shdr;
240
241/* special section indices */
242#define SHN_UNDEF		0
243#define SHN_LORESERVE	0xff00
244#define SHN_LOPROC		0xff00
245#define SHN_HIPROC		0xff1f
246#define SHN_ABS			0xfff1
247#define SHN_COMMON		0xfff2
248#define SHN_HIRESERVE	0xffff
249
250/* section header type */
251#define SHT_NULL		0
252#define SHT_PROGBITS	1
253#define SHT_SYMTAB		2
254#define SHT_STRTAB		3
255#define SHT_RELA		4
256#define SHT_HASH		5
257#define SHT_DYNAMIC		6
258#define SHT_NOTE		7
259#define SHT_NOBITS		8
260#define SHT_REL			9
261#define SHT_SHLIB		10
262#define SHT_DYNSYM		11
263
264#define SHT_GNU_verdef	0x6ffffffd    /* version definition section */
265#define SHT_GNU_verneed	0x6ffffffe    /* version needs section */
266#define SHT_GNU_versym	0x6fffffff    /* version symbol table */
267
268#define SHT_LOPROC		0x70000000
269#define SHT_HIPROC		0x7fffffff
270#define SHT_LOUSER		0x80000000
271#define SHT_HIUSER		0xffffffff
272
273/* section header flags */
274#define SHF_WRITE		1
275#define SHF_ALLOC		2
276#define SHF_EXECINSTR	4
277
278#define SHF_MASKPROC	0xf0000000
279
280
281/*** program header ***/
282
283typedef struct {
284	Elf32_Word	p_type;
285	Elf32_Off	p_offset;	/* offset from the beginning of the file of the segment */
286	Elf32_Addr	p_vaddr;	/* virtual address for the segment in memory */
287	Elf32_Addr	p_paddr;
288	Elf32_Word	p_filesz;	/* the size of the segment in the file */
289	Elf32_Word	p_memsz;	/* the size of the segment in memory */
290	Elf32_Word	p_flags;
291	Elf32_Word	p_align;
292
293#ifdef __cplusplus
294	bool IsReadWrite() const;
295	bool IsExecutable() const;
296#endif
297} Elf32_Phdr;
298
299typedef struct {
300	Elf64_Word	p_type;
301	Elf64_Word	p_flags;
302	Elf64_Off	p_offset;	/* offset from the beginning of the file of the segment */
303	Elf64_Addr	p_vaddr;	/* virtual address for the segment in memory */
304	Elf64_Addr	p_paddr;
305	Elf64_Xword	p_filesz;	/* the size of the segment in the file */
306	Elf64_Xword	p_memsz;	/* the size of the segment in memory */
307	Elf64_Xword	p_align;
308
309#ifdef __cplusplus
310	bool IsReadWrite() const;
311	bool IsExecutable() const;
312#endif
313} Elf64_Phdr;
314
315/* program header segment types */
316#define PT_NULL			0
317#define PT_LOAD			1
318#define PT_DYNAMIC		2
319#define PT_INTERP		3
320#define PT_NOTE			4
321#define PT_SHLIB		5
322#define PT_PHDR			6
323#define PT_TLS			7
324#define PT_STACK		0x6474e551
325#define PT_RELRO		0x6474e552
326
327#define PT_LOPROC		0x70000000
328#define PT_ARM_UNWIND	0x70000001
329#define PT_HIPROC		0x7fffffff
330
331/* program header segment flags */
332#define PF_EXECUTE	0x1
333#define PF_WRITE	0x2
334#define PF_READ		0x4
335#define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ)
336
337#define PF_MASKPROC	0xf0000000
338
339
340/* symbol table entry */
341
342typedef struct {
343	Elf32_Word	st_name;
344	Elf32_Addr	st_value;
345	Elf32_Word	st_size;
346	uint8		st_info;
347	uint8 		st_other;
348	Elf32_Half	st_shndx;
349
350#ifdef __cplusplus
351	uint8 Bind() const;
352	uint8 Type() const;
353	void SetInfo(uint8 bind, uint8 type);
354#endif
355} Elf32_Sym;
356
357typedef struct {
358	Elf64_Word	st_name;
359	uint8		st_info;
360	uint8		st_other;
361	Elf64_Half	st_shndx;
362	Elf64_Addr	st_value;
363	Elf64_Xword	st_size;
364
365#ifdef __cplusplus
366	uint8 Bind() const;
367	uint8 Type() const;
368	void SetInfo(uint8 bind, uint8 type);
369#endif
370} Elf64_Sym;
371
372#define ELF32_ST_BIND(i) ((i) >> 4)
373#define ELF32_ST_TYPE(i) ((i) & 0xf)
374#define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf))
375
376#define ELF64_ST_BIND(i) ((i) >> 4)
377#define ELF64_ST_TYPE(i) ((i) & 0xf)
378#define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf))
379
380/* symbol types */
381#define STT_NOTYPE 0
382#define STT_OBJECT 1
383#define STT_FUNC 2
384#define STT_SECTION 3
385#define STT_FILE 4
386#define STT_TLS		6
387#define STT_LOPROC 13
388#define STT_HIPROC 15
389
390/* symbol binding */
391#define STB_LOCAL 0
392#define STB_GLOBAL 1
393#define STB_WEAK 2
394#define STB_LOPROC 13
395#define STB_HIPROC 15
396
397/* special symbol indices */
398#define STN_UNDEF 0
399
400
401/* relocation table entry */
402
403typedef struct {
404	Elf32_Addr r_offset;
405	Elf32_Word r_info;
406
407#ifdef __cplusplus
408	uint8 SymbolIndex() const;
409	uint8 Type() const;
410#endif
411} Elf32_Rel;
412
413typedef struct {
414	Elf64_Addr	r_offset;
415	Elf64_Xword	r_info;
416
417#ifdef __cplusplus
418	uint8 SymbolIndex() const;
419	uint8 Type() const;
420#endif
421} Elf64_Rel;
422
423#ifdef __cplusplus
424typedef struct Elf32_Rela : public Elf32_Rel {
425#else
426typedef struct {
427	Elf32_Addr r_offset;
428	Elf32_Word r_info;
429#endif
430	Elf32_Sword r_addend;
431} Elf32_Rela;
432
433#ifdef __cplusplus
434typedef struct Elf64_Rela : public Elf64_Rel {
435#else
436typedef struct {
437	Elf64_Addr		r_offset;
438	Elf64_Xword		r_info;
439#endif
440	Elf64_Sxword	r_addend;
441} Elf64_Rela;
442
443#define ELF32_R_SYM(i) ((i) >> 8)
444#define ELF32_R_TYPE(i) ((unsigned char)(i))
445#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t))
446
447#define ELF64_R_SYM(i) ((i) >> 32)
448#define ELF64_R_TYPE(i) ((i) & 0xffffffffL)
449#define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL))
450
451
452/* dynamic section entry */
453
454typedef struct {
455	Elf32_Sword d_tag;
456	union {
457		Elf32_Word d_val;
458		Elf32_Addr d_ptr;
459	} d_un;
460} Elf32_Dyn;
461
462typedef struct {
463	Elf64_Sxword d_tag;
464	union {
465		Elf64_Xword	d_val;
466		Elf64_Addr	d_ptr;
467	} d_un;
468} Elf64_Dyn;
469
470/* dynamic entry type */
471#define DT_NULL				0
472#define DT_NEEDED			1
473#define DT_PLTRELSZ			2
474#define DT_PLTGOT			3
475#define DT_HASH				4
476#define DT_STRTAB			5
477#define DT_SYMTAB			6
478#define DT_RELA				7
479#define DT_RELASZ			8
480#define DT_RELAENT			9
481#define DT_STRSZ			10
482#define DT_SYMENT			11
483#define DT_INIT				12
484#define DT_FINI				13
485#define DT_SONAME			14
486#define DT_RPATH			15
487#define DT_SYMBOLIC			16
488#define DT_REL				17
489#define DT_RELSZ			18
490#define DT_RELENT			19
491#define DT_PLTREL			20
492#define DT_DEBUG			21
493#define DT_TEXTREL			22
494#define DT_JMPREL			23
495#define DT_BIND_NOW			24	/* no lazy binding */
496#define DT_INIT_ARRAY		25	/* init function array */
497#define DT_FINI_ARRAY		26	/* termination function array */
498#define DT_INIT_ARRAYSZ		27	/* init function array size */
499#define DT_FINI_ARRAYSZ		28	/* termination function array size */
500#define DT_RUNPATH			29	/* library search path (supersedes DT_RPATH) */
501#define DT_FLAGS			30	/* flags (see below) */
502#define DT_ENCODING			32
503#define DT_PREINIT_ARRAY	32	/* preinitialization array */
504#define DT_PREINIT_ARRAYSZ	33	/* preinitialization array size */
505
506#define DT_VERSYM       0x6ffffff0	/* symbol version table */
507#define DT_VERDEF		0x6ffffffc	/* version definition table */
508#define DT_VERDEFNUM	0x6ffffffd	/* number of version definitions */
509#define DT_VERNEED		0x6ffffffe 	/* table with needed versions */
510#define DT_VERNEEDNUM	0x6fffffff	/* number of needed versions */
511
512#define DT_LOPROC		0x70000000
513#define DT_HIPROC		0x7fffffff
514
515/* DT_FLAGS values */
516#define DF_ORIGIN		0x01
517#define DF_SYMBOLIC		0x02
518#define DF_TEXTREL		0x04
519#define DF_BIND_NOW		0x08
520#define DF_STATIC_TLS	0x10
521
522
523/* version definition section */
524
525typedef struct {
526	Elf32_Half	vd_version;		/* version revision */
527	Elf32_Half	vd_flags;		/* version information flags */
528	Elf32_Half	vd_ndx;			/* version index as specified in the
529								   symbol version table */
530	Elf32_Half	vd_cnt;			/* number of associated verdaux entries */
531	Elf32_Word	vd_hash;		/* version name hash value */
532	Elf32_Word	vd_aux;			/* byte offset to verdaux array */
533	Elf32_Word	vd_next;		/* byte offset to next verdef entry */
534} Elf32_Verdef;
535
536typedef struct {
537	Elf64_Half	vd_version;		/* version revision */
538	Elf64_Half	vd_flags;		/* version information flags */
539	Elf64_Half	vd_ndx;			/* version index as specified in the
540								   symbol version table */
541	Elf64_Half	vd_cnt;			/* number of associated verdaux entries */
542	Elf64_Word	vd_hash;		/* version name hash value */
543	Elf64_Word	vd_aux;			/* byte offset to verdaux array */
544	Elf64_Word	vd_next;		/* byte offset to next verdef entry */
545} Elf64_Verdef;
546
547/* values for vd_version (version revision) */
548#define VER_DEF_NONE		0		/* no version */
549#define VER_DEF_CURRENT		1		/* current version */
550#define VER_DEF_NUM			2		/* given version number */
551
552/* values for vd_flags (version information flags) */
553#define VER_FLG_BASE		0x1		/* version definition of file itself */
554#define VER_FLG_WEAK		0x2 	/* weak version identifier */
555
556/* values for versym symbol index */
557#define VER_NDX_LOCAL		0		/* symbol is local */
558#define VER_NDX_GLOBAL		1		/* symbol is global/unversioned */
559#define VER_NDX_INITIAL		2		/* initial version -- that's the one given
560									   to symbols when a library becomes
561									   versioned; handled by the linker (and
562									   runtime loader) similar to
563									   VER_NDX_GLOBAL */
564#define VER_NDX_LORESERVE	0xff00	/* beginning of reserved entries */
565#define VER_NDX_ELIMINATE	0xff01	/* symbol is to be eliminated */
566
567#define VER_NDX_FLAG_HIDDEN	0x8000	/* flag: version is hidden */
568#define VER_NDX_MASK		0x7fff	/* mask to get the actual version index */
569#define VER_NDX(x)			((x) & VER_NDX_MASK)
570
571
572/* auxiliary version information */
573
574typedef struct {
575	Elf32_Word	vda_name;		/* string table offset to version or dependency
576								   name */
577	Elf32_Word	vda_next;		/* byte offset to next verdaux entry */
578} Elf32_Verdaux;
579
580typedef struct {
581	Elf64_Word	vda_name;		/* string table offset to version or dependency
582								   name */
583	Elf64_Word	vda_next;		/* byte offset to next verdaux entry */
584} Elf64_Verdaux;
585
586
587/* version dependency section */
588
589typedef struct {
590	Elf32_Half	vn_version;		/* version of structure */
591	Elf32_Half	vn_cnt;			/* number of associated vernaux entries */
592	Elf32_Word	vn_file;		/* byte offset to file name for this
593								   dependency */
594	Elf32_Word	vn_aux;			/* byte offset to vernaux array */
595	Elf32_Word	vn_next;		/* byte offset to next verneed entry */
596} Elf32_Verneed;
597
598typedef struct {
599	Elf64_Half	vn_version;		/* version of structure */
600	Elf64_Half	vn_cnt;			/* number of associated vernaux entries */
601	Elf64_Word	vn_file;		/* byte offset to file name for this
602								   dependency */
603	Elf64_Word	vn_aux;			/* byte offset to vernaux array */
604	Elf64_Word	vn_next;		/* byte offset to next verneed entry */
605} Elf64_Verneed;
606
607/* values for vn_version (version revision) */
608#define VER_NEED_NONE		0	/* no version */
609#define VER_NEED_CURRENT	1	/* current version */
610#define VER_NEED_NUM		2	/* given version number */
611
612
613/* auxiliary needed version information */
614
615typedef struct {
616	Elf32_Word	vna_hash;		/* dependency name hash value */
617	Elf32_Half	vna_flags;		/* dependency specific information flags */
618	Elf32_Half	vna_other;		/* version index as specified in the symbol
619								   version table */
620	Elf32_Word	vna_name;		/* string table offset to dependency name */
621	Elf32_Word	vna_next;		/* byte offset to next vernaux entry */
622} Elf32_Vernaux;
623
624typedef struct {
625	Elf64_Word	vna_hash;		/* dependency name hash value */
626	Elf64_Half	vna_flags;		/* dependency specific information flags */
627	Elf64_Half	vna_other;		/* version index as specified in the symbol
628								   version table */
629	Elf64_Word	vna_name;		/* string table offset to dependency name */
630	Elf64_Word	vna_next;		/* byte offset to next vernaux entry */
631} Elf64_Vernaux;
632
633/* values for vna_flags */
634#define VER_FLG_WEAK	0x2		/* weak version identifier */
635
636
637/*** core files ***/
638
639/* note section header */
640
641typedef struct {
642	Elf32_Word n_namesz;		/* length of the note's name */
643	Elf32_Word n_descsz;		/* length of the note's descriptor */
644	Elf32_Word n_type;			/* note type */
645} Elf32_Nhdr;
646
647typedef struct {
648	Elf64_Word n_namesz;		/* length of the note's name */
649	Elf64_Word n_descsz;		/* length of the note's descriptor */
650	Elf64_Word n_type;			/* note type */
651} Elf64_Nhdr;
652
653/* values for note name */
654#define ELF_NOTE_CORE		"CORE"
655#define ELF_NOTE_HAIKU		"Haiku"
656
657/* values for note type (n_type) */
658/* ELF_NOTE_CORE/... */
659#define NT_FILE				0x46494c45 /* mapped files */
660
661/* ELF_NOTE_HAIKU/... */
662#define NT_TEAM				0x7465616d 	/* team */
663#define NT_AREAS			0x61726561 	/* areas */
664#define NT_IMAGES			0x696d6167 	/* images */
665#define NT_THREADS			0x74687264 	/* threads */
666#define NT_SYMBOLS			0x73796d73 	/* symbols */
667
668/* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */
669typedef struct {
670	int32		nt_id;				/* team ID */
671	int32		nt_uid;				/* team owner ID */
672	int32		nt_gid;				/* team group ID */
673} Elf32_Note_Team;
674
675typedef Elf32_Note_Team Elf64_Note_Team;
676
677/* NT_AREAS:
678 * uint32 count;
679 * uint32 entrySize;
680 * Elf32_Note_Area_Entry[count];
681 * char[] names
682 */
683typedef struct {
684	int32		na_id;				/* area ID */
685	uint32		na_lock;			/* lock type (B_NO_LOCK, ...) */
686	uint32		na_protection;		/* protection (B_READ_AREA | ...) */
687	uint32		na_base;			/* area base address */
688	uint32		na_size;			/* area size */
689	uint32		na_ram_size;		/* physical memory used */
690} Elf32_Note_Area_Entry;
691
692/* NT_AREAS:
693 * uint32 count;
694 * uint32 entrySize;
695 * Elf64_Note_Area_Entry[count];
696 * char[] names
697 */
698typedef struct {
699	int32		na_id;				/* area ID */
700	uint32		na_lock;			/* lock type (B_NO_LOCK, ...) */
701	uint32		na_protection;		/* protection (B_READ_AREA | ...) */
702	uint32		na_pad1;
703	uint64		na_base;			/* area base address */
704	uint64		na_size;			/* area size */
705	uint64		na_ram_size;		/* physical memory used */
706} Elf64_Note_Area_Entry;
707
708/* NT_IMAGES:
709 * uint32 count;
710 * uint32 entrySize;
711 * Elf32_Note_Image_Entry[count];
712 * char[] names
713 */
714typedef struct {
715	int32		ni_id;				/* image ID */
716	int32		ni_type;			/* image type (B_APP_IMAGE, ...) */
717	uint32		ni_init_routine;	/* address of init function */
718	uint32		ni_term_routine;	/* address of termination function */
719	int32		ni_device;			/* device ID of mapped file */
720	int64		ni_node;			/* node ID of mapped file */
721	uint32		ni_text_base;		/* base address of text segment */
722	uint32		ni_text_size;		/* size of text segment */
723	int32		ni_text_delta;		/* delta of the text segment relative to
724									   load address specified in the ELF file */
725	uint32		ni_data_base;		/* base address of data segment */
726	uint32		ni_data_size;		/* size of data segment */
727	uint32		ni_symbol_table;	/* address of dynamic symbol table */
728	uint32		ni_symbol_hash;		/* address of dynamic symbol hash */
729	uint32		ni_string_table;	/* address of dynamic string table */
730} Elf32_Note_Image_Entry;
731
732/* NT_IMAGES:
733 * uint32 count;
734 * uint32 entrySize;
735 * Elf64_Note_Image_Entry[count];
736 * char[] names
737 */
738typedef struct {
739	int32		ni_id;				/* image ID */
740	int32		ni_type;			/* image type (B_APP_IMAGE, ...) */
741	uint64		ni_init_routine;	/* address of init function */
742	uint64		ni_term_routine;	/* address of termination function */
743	uint32		ni_pad1;
744	int32		ni_device;			/* device ID of mapped file */
745	int64		ni_node;			/* node ID of mapped file */
746	uint64		ni_text_base;		/* base address of text segment */
747	uint64		ni_text_size;		/* size of text segment */
748	int64		ni_text_delta;		/* delta of the text segment relative to
749									   load address specified in the ELF file */
750	uint64		ni_data_base;		/* base address of data segment */
751	uint64		ni_data_size;		/* size of data segment */
752	uint64		ni_symbol_table;	/* address of dynamic symbol table */
753	uint64		ni_symbol_hash;		/* address of dynamic symbol hash */
754	uint64		ni_string_table;	/* address of dynamic string table */
755} Elf64_Note_Image_Entry;
756
757/* NT_THREADS:
758 * uint32 count;
759 * uint32 entrySize;
760 * uint32 cpuStateSize;
761 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count];
762 * char[] names
763 */
764typedef struct {
765	int32		nth_id;				/* thread ID */
766	int32		nth_state;			/* thread state (B_THREAD_RUNNING, ...) */
767	int32		nth_priority;		/* thread priority */
768	uint32		nth_stack_base;		/* thread stack base address */
769	uint32		nth_stack_end;		/* thread stack end address */
770} Elf32_Note_Thread_Entry;
771
772/* NT_THREADS:
773 * uint32 count;
774 * uint32 entrySize;
775 * uint32 cpuStateSize;
776 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count];
777 * char[] names
778 */
779typedef struct {
780	int32		nth_id;				/* thread ID */
781	int32		nth_state;			/* thread state (B_THREAD_RUNNING, ...) */
782	int32		nth_priority;		/* thread priority */
783	uint32		nth_pad1;
784	uint64		nth_stack_base;		/* thread stack base address */
785	uint64		nth_stack_end;		/* thread stack end address */
786} Elf64_Note_Thread_Entry;
787
788/* NT_SYMBOLS:
789 * int32 imageId;
790 * uint32 symbolCount;
791 * uint32 entrySize;
792 * Elf{32,64}_Sym[count];
793 * char[] strings
794 */
795
796
797/*** inline functions ***/
798
799#ifdef __cplusplus
800
801inline bool
802Elf32_Ehdr::IsHostEndian() const
803{
804#if B_HOST_IS_LENDIAN
805	return e_ident[EI_DATA] == ELFDATA2LSB;
806#elif B_HOST_IS_BENDIAN
807	return e_ident[EI_DATA] == ELFDATA2MSB;
808#endif
809}
810
811
812inline bool
813Elf64_Ehdr::IsHostEndian() const
814{
815#if B_HOST_IS_LENDIAN
816	return e_ident[EI_DATA] == ELFDATA2LSB;
817#elif B_HOST_IS_BENDIAN
818	return e_ident[EI_DATA] == ELFDATA2MSB;
819#endif
820}
821
822
823inline bool
824Elf32_Phdr::IsReadWrite() const
825{
826	return !(~p_flags & (PF_READ | PF_WRITE));
827}
828
829
830inline bool
831Elf32_Phdr::IsExecutable() const
832{
833	return (p_flags & PF_EXECUTE) != 0;
834}
835
836
837inline bool
838Elf64_Phdr::IsReadWrite() const
839{
840	return !(~p_flags & (PF_READ | PF_WRITE));
841}
842
843
844inline bool
845Elf64_Phdr::IsExecutable() const
846{
847	return (p_flags & PF_EXECUTE) != 0;
848}
849
850
851inline uint8
852Elf32_Sym::Bind() const
853{
854	return ELF32_ST_BIND(st_info);
855}
856
857
858inline uint8
859Elf32_Sym::Type() const
860{
861	return ELF32_ST_TYPE(st_info);
862}
863
864
865inline void
866Elf32_Sym::SetInfo(uint8 bind, uint8 type)
867{
868	st_info = ELF32_ST_INFO(bind, type);
869}
870
871
872inline uint8
873Elf64_Sym::Bind() const
874{
875	return ELF64_ST_BIND(st_info);
876}
877
878
879inline uint8
880Elf64_Sym::Type() const
881{
882	return ELF64_ST_TYPE(st_info);
883}
884
885
886inline void
887Elf64_Sym::SetInfo(uint8 bind, uint8 type)
888{
889	st_info = ELF64_ST_INFO(bind, type);
890}
891
892
893inline uint8
894Elf32_Rel::SymbolIndex() const
895{
896	return ELF32_R_SYM(r_info);
897}
898
899
900inline uint8
901Elf32_Rel::Type() const
902{
903	return ELF32_R_TYPE(r_info);
904}
905
906
907inline uint8
908Elf64_Rel::SymbolIndex() const
909{
910	return ELF64_R_SYM(r_info);
911}
912
913
914inline uint8
915Elf64_Rel::Type() const
916{
917	return ELF64_R_TYPE(r_info);
918}
919
920#endif	/* __cplusplus */
921
922
923#endif	/* _ELF_H */
924