readelf.h revision 300899 
1/*
2 * Copyright (c) Christos Zoulas 2003.
3 * 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 immediately at the beginning of the file, without modification,
10 *    this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27/*
28 * @(#)Id: readelf.h,v 1.9 2002/05/16 18:45:56 christos Exp
29 *
30 * Provide elf data structures for non-elf machines, allowing file
31 * non-elf hosts to determine if an elf binary is stripped.
32 * Note: cobbled from the linux header file, with modifications
33 */
34#ifndef __fake_elf_h__
35#define	__fake_elf_h__
36
37#if HAVE_STDINT_H
38#include <stdint.h>
39#endif
40
41typedef uint32_t	Elf32_Addr;
42typedef uint32_t	Elf32_Off;
43typedef uint16_t	Elf32_Half;
44typedef uint32_t	Elf32_Word;
45typedef uint8_t		Elf32_Char;
46
47typedef	uint64_t 	Elf64_Addr;
48typedef	uint64_t 	Elf64_Off;
49typedef uint64_t 	Elf64_Xword;
50typedef uint16_t	Elf64_Half;
51typedef uint32_t	Elf64_Word;
52typedef uint8_t		Elf64_Char;
53
54#define	EI_NIDENT	16
55
56typedef struct {
57	Elf32_Word	a_type;		/* 32-bit id */
58	Elf32_Word	a_v;		/* 32-bit id */
59} Aux32Info;
60
61typedef struct {
62	Elf64_Xword	a_type;		/* 64-bit id */
63	Elf64_Xword	a_v;		/* 64-bit id */
64} Aux64Info;
65
66#define AT_NULL   0     /* end of vector */
67#define AT_IGNORE 1     /* entry should be ignored */
68#define AT_EXECFD 2     /* file descriptor of program */
69#define AT_PHDR   3     /* program headers for program */
70#define AT_PHENT  4     /* size of program header entry */
71#define AT_PHNUM  5     /* number of program headers */
72#define AT_PAGESZ 6     /* system page size */
73#define AT_BASE   7     /* base address of interpreter */
74#define AT_FLAGS  8     /* flags */
75#define AT_ENTRY  9     /* entry point of program */
76#define AT_LINUX_NOTELF 10    /* program is not ELF */
77#define AT_LINUX_UID    11    /* real uid */
78#define AT_LINUX_EUID   12    /* effective uid */
79#define AT_LINUX_GID    13    /* real gid */
80#define AT_LINUX_EGID   14    /* effective gid */
81#define AT_LINUX_PLATFORM 15  /* string identifying CPU for optimizations */
82#define AT_LINUX_HWCAP  16    /* arch dependent hints at CPU capabilities */
83#define AT_LINUX_CLKTCK 17    /* frequency at which times() increments */
84/* AT_* values 18 through 22 are reserved */
85#define AT_LINUX_SECURE 23   /* secure mode boolean */
86#define AT_LINUX_BASE_PLATFORM 24     /* string identifying real platform, may
87                                 * differ from AT_PLATFORM. */
88#define AT_LINUX_RANDOM 25    /* address of 16 random bytes */
89#define AT_LINUX_HWCAP2 26    /* extension of AT_HWCAP */
90#define AT_LINUX_EXECFN 31   /* filename of program */
91
92typedef struct {
93    Elf32_Char	e_ident[EI_NIDENT];
94    Elf32_Half	e_type;
95    Elf32_Half	e_machine;
96    Elf32_Word	e_version;
97    Elf32_Addr	e_entry;  /* Entry point */
98    Elf32_Off	e_phoff;
99    Elf32_Off	e_shoff;
100    Elf32_Word	e_flags;
101    Elf32_Half	e_ehsize;
102    Elf32_Half	e_phentsize;
103    Elf32_Half	e_phnum;
104    Elf32_Half	e_shentsize;
105    Elf32_Half	e_shnum;
106    Elf32_Half	e_shstrndx;
107} Elf32_Ehdr;
108
109typedef struct {
110    Elf64_Char	e_ident[EI_NIDENT];
111    Elf64_Half	e_type;
112    Elf64_Half	e_machine;
113    Elf64_Word	e_version;
114    Elf64_Addr	e_entry;  /* Entry point */
115    Elf64_Off	e_phoff;
116    Elf64_Off	e_shoff;
117    Elf64_Word	e_flags;
118    Elf64_Half	e_ehsize;
119    Elf64_Half	e_phentsize;
120    Elf64_Half	e_phnum;
121    Elf64_Half	e_shentsize;
122    Elf64_Half	e_shnum;
123    Elf64_Half	e_shstrndx;
124} Elf64_Ehdr;
125
126/* e_type */
127#define	ET_REL		1
128#define	ET_EXEC		2
129#define	ET_DYN		3
130#define	ET_CORE		4
131
132/* e_machine (used only for SunOS 5.x hardware capabilities) */
133#define	EM_SPARC	2
134#define	EM_386		3
135#define	EM_SPARC32PLUS	18
136#define	EM_SPARCV9	43
137#define	EM_IA_64	50
138#define	EM_AMD64	62
139
140/* sh_type */
141#define	SHT_SYMTAB	2
142#define	SHT_NOTE	7
143#define	SHT_DYNSYM	11
144#define	SHT_SUNW_cap	0x6ffffff5	/* SunOS 5.x hw/sw capabilites */
145
146/* elf type */
147#define	ELFDATANONE	0		/* e_ident[EI_DATA] */
148#define	ELFDATA2LSB	1
149#define	ELFDATA2MSB	2
150
151/* elf class */
152#define	ELFCLASSNONE	0
153#define	ELFCLASS32	1
154#define	ELFCLASS64	2
155
156/* magic number */
157#define	EI_MAG0		0		/* e_ident[] indexes */
158#define	EI_MAG1		1
159#define	EI_MAG2		2
160#define	EI_MAG3		3
161#define	EI_CLASS	4
162#define	EI_DATA		5
163#define	EI_VERSION	6
164#define	EI_PAD		7
165
166#define	ELFMAG0		0x7f		/* EI_MAG */
167#define	ELFMAG1		'E'
168#define	ELFMAG2		'L'
169#define	ELFMAG3		'F'
170#define	ELFMAG		"\177ELF"
171
172#define	OLFMAG1		'O'
173#define	OLFMAG		"\177OLF"
174
175typedef struct {
176    Elf32_Word	p_type;
177    Elf32_Off	p_offset;
178    Elf32_Addr	p_vaddr;
179    Elf32_Addr	p_paddr;
180    Elf32_Word	p_filesz;
181    Elf32_Word	p_memsz;
182    Elf32_Word	p_flags;
183    Elf32_Word	p_align;
184} Elf32_Phdr;
185
186typedef struct {
187    Elf64_Word	p_type;
188    Elf64_Word	p_flags;
189    Elf64_Off	p_offset;
190    Elf64_Addr	p_vaddr;
191    Elf64_Addr	p_paddr;
192    Elf64_Xword	p_filesz;
193    Elf64_Xword	p_memsz;
194    Elf64_Xword	p_align;
195} Elf64_Phdr;
196
197#define	PT_NULL		0		/* p_type */
198#define	PT_LOAD		1
199#define	PT_DYNAMIC	2
200#define	PT_INTERP	3
201#define	PT_NOTE		4
202#define	PT_SHLIB	5
203#define	PT_PHDR		6
204#define	PT_NUM		7
205
206typedef struct {
207    Elf32_Word	sh_name;
208    Elf32_Word	sh_type;
209    Elf32_Word	sh_flags;
210    Elf32_Addr	sh_addr;
211    Elf32_Off	sh_offset;
212    Elf32_Word	sh_size;
213    Elf32_Word	sh_link;
214    Elf32_Word	sh_info;
215    Elf32_Word	sh_addralign;
216    Elf32_Word	sh_entsize;
217} Elf32_Shdr;
218
219typedef struct {
220    Elf64_Word	sh_name;
221    Elf64_Word	sh_type;
222    Elf64_Off	sh_flags;
223    Elf64_Addr	sh_addr;
224    Elf64_Off	sh_offset;
225    Elf64_Off	sh_size;
226    Elf64_Word	sh_link;
227    Elf64_Word	sh_info;
228    Elf64_Off	sh_addralign;
229    Elf64_Off	sh_entsize;
230} Elf64_Shdr;
231
232#define	NT_NETBSD_CORE_PROCINFO		1
233
234/* Note header in a PT_NOTE section */
235typedef struct elf_note {
236    Elf32_Word	n_namesz;	/* Name size */
237    Elf32_Word	n_descsz;	/* Content size */
238    Elf32_Word	n_type;		/* Content type */
239} Elf32_Nhdr;
240
241typedef struct {
242    Elf64_Word	n_namesz;
243    Elf64_Word	n_descsz;
244    Elf64_Word	n_type;
245} Elf64_Nhdr;
246
247/* Notes used in ET_CORE */
248#define	NT_PRSTATUS	1
249#define	NT_PRFPREG	2
250#define	NT_PRPSINFO	3
251#define	NT_PRXREG	4
252#define	NT_TASKSTRUCT	4
253#define	NT_PLATFORM	5
254#define	NT_AUXV		6
255
256/* Note types used in executables */
257/* NetBSD executables (name = "NetBSD") */
258#define	NT_NETBSD_VERSION	1
259#define	NT_NETBSD_EMULATION	2
260#define	NT_FREEBSD_VERSION	1
261#define	NT_OPENBSD_VERSION	1
262#define	NT_DRAGONFLY_VERSION	1
263/*
264 * GNU executables (name = "GNU")
265 * word[0]: GNU OS tags
266 * word[1]: major version
267 * word[2]: minor version
268 * word[3]: tiny version
269 */
270#define	NT_GNU_VERSION		1
271
272/* GNU OS tags */
273#define	GNU_OS_LINUX	0
274#define	GNU_OS_HURD	1
275#define	GNU_OS_SOLARIS	2
276#define	GNU_OS_KFREEBSD	3
277#define	GNU_OS_KNETBSD	4
278
279/*
280 * GNU Hardware capability information
281 * word[0]: Number of entries
282 * word[1]: Bitmask of enabled entries
283 * Followed by a byte id, and a NUL terminated string per entry
284 */
285#define	NT_GNU_HWCAP		2
286
287/*
288 * GNU Build ID generated by ld
289 * 160 bit SHA1 [default]
290 * 128 bit md5 or uuid
291 */
292#define	NT_GNU_BUILD_ID		3
293
294/*
295 * NetBSD-specific note type: PaX.
296 * There should be 1 NOTE per executable.
297 * name: PaX\0
298 * namesz: 4
299 * desc:
300 *	word[0]: capability bitmask
301 * descsz: 4
302 */
303#define NT_NETBSD_PAX		3
304#define NT_NETBSD_PAX_MPROTECT		0x01	/* Force enable Mprotect */
305#define NT_NETBSD_PAX_NOMPROTECT	0x02	/* Force disable Mprotect */
306#define NT_NETBSD_PAX_GUARD		0x04	/* Force enable Segvguard */
307#define NT_NETBSD_PAX_NOGUARD		0x08	/* Force disable Servguard */
308#define NT_NETBSD_PAX_ASLR		0x10	/* Force enable ASLR */
309#define NT_NETBSD_PAX_NOASLR		0x20	/* Force disable ASLR */
310
311/*
312 * NetBSD-specific note type: MACHINE_ARCH.
313 * There should be 1 NOTE per executable.
314 * name:	NetBSD\0
315 * namesz:	7
316 * desc:	string
317 * descsz:	variable
318 */
319#define NT_NETBSD_MARCH		5
320
321/*
322 * NetBSD-specific note type: COMPILER MODEL.
323 * There should be 1 NOTE per executable.
324 * name:	NetBSD\0
325 * namesz:	7
326 * desc:	string
327 * descsz:	variable
328 */
329#define NT_NETBSD_CMODEL	6
330
331#if !defined(ELFSIZE) && defined(ARCH_ELFSIZE)
332#define ELFSIZE ARCH_ELFSIZE
333#endif
334/* SunOS 5.x hardware/software capabilities */
335typedef struct {
336	Elf32_Word	c_tag;
337	union {
338		Elf32_Word	c_val;
339		Elf32_Addr	c_ptr;
340	} c_un;
341} Elf32_Cap;
342
343typedef struct {
344	Elf64_Xword	c_tag;
345	union {
346		Elf64_Xword	c_val;
347		Elf64_Addr	c_ptr;
348	} c_un;
349} Elf64_Cap;
350
351/* SunOS 5.x hardware/software capability tags */
352#define	CA_SUNW_NULL	0
353#define	CA_SUNW_HW_1	1
354#define	CA_SUNW_SF_1	2
355
356/* SunOS 5.x software capabilities */
357#define	SF1_SUNW_FPKNWN	0x01
358#define	SF1_SUNW_FPUSED	0x02
359#define	SF1_SUNW_MASK	0x03
360
361/* SunOS 5.x hardware capabilities: sparc */
362#define	AV_SPARC_MUL32		0x0001
363#define	AV_SPARC_DIV32		0x0002
364#define	AV_SPARC_FSMULD		0x0004
365#define	AV_SPARC_V8PLUS		0x0008
366#define	AV_SPARC_POPC		0x0010
367#define	AV_SPARC_VIS		0x0020
368#define	AV_SPARC_VIS2		0x0040
369#define	AV_SPARC_ASI_BLK_INIT	0x0080
370#define	AV_SPARC_FMAF		0x0100
371#define	AV_SPARC_FJFMAU		0x4000
372#define	AV_SPARC_IMA		0x8000
373
374/* SunOS 5.x hardware capabilities: 386 */
375#define	AV_386_FPU		0x00000001
376#define	AV_386_TSC		0x00000002
377#define	AV_386_CX8		0x00000004
378#define	AV_386_SEP		0x00000008
379#define	AV_386_AMD_SYSC		0x00000010
380#define	AV_386_CMOV		0x00000020
381#define	AV_386_MMX		0x00000040
382#define	AV_386_AMD_MMX		0x00000080
383#define	AV_386_AMD_3DNow	0x00000100
384#define	AV_386_AMD_3DNowx	0x00000200
385#define	AV_386_FXSR		0x00000400
386#define	AV_386_SSE		0x00000800
387#define	AV_386_SSE2		0x00001000
388#define	AV_386_PAUSE		0x00002000
389#define	AV_386_SSE3		0x00004000
390#define	AV_386_MON		0x00008000
391#define	AV_386_CX16		0x00010000
392#define	AV_386_AHF		0x00020000
393#define	AV_386_TSCP		0x00040000
394#define	AV_386_AMD_SSE4A	0x00080000
395#define	AV_386_POPCNT		0x00100000
396#define	AV_386_AMD_LZCNT	0x00200000
397#define	AV_386_SSSE3		0x00400000
398#define	AV_386_SSE4_1		0x00800000
399#define	AV_386_SSE4_2		0x01000000
400
401#endif
402