1181624Skmacy#ifndef __XEN_PUBLIC_ELFSTRUCTS_H__
2181624Skmacy#define __XEN_PUBLIC_ELFSTRUCTS_H__ 1
3181624Skmacy/*
4181624Skmacy * Copyright (c) 1995, 1996 Erik Theisen.  All rights reserved.
5181624Skmacy *
6181624Skmacy * Redistribution and use in source and binary forms, with or without
7181624Skmacy * modification, are permitted provided that the following conditions
8181624Skmacy * are met:
9181624Skmacy * 1. Redistributions of source code must retain the above copyright
10181624Skmacy *    notice, this list of conditions and the following disclaimer.
11181624Skmacy * 2. Redistributions in binary form must reproduce the above copyright
12181624Skmacy *    notice, this list of conditions and the following disclaimer in the
13181624Skmacy *    documentation and/or other materials provided with the distribution.
14181624Skmacy * 3. The name of the author may not be used to endorse or promote products
15181624Skmacy *    derived from this software without specific prior written permission
16181624Skmacy *
17181624Skmacy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18181624Skmacy * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19181624Skmacy * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20181624Skmacy * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21181624Skmacy * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22181624Skmacy * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23181624Skmacy * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24181624Skmacy * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25181624Skmacy * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26181624Skmacy * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27181624Skmacy */
28181624Skmacy
29181624Skmacytypedef uint8_t		Elf_Byte;
30181624Skmacy
31181624Skmacytypedef uint32_t	Elf32_Addr;	/* Unsigned program address */
32181624Skmacytypedef uint32_t	Elf32_Off;	/* Unsigned file offset */
33181624Skmacytypedef int32_t		Elf32_Sword;	/* Signed large integer */
34181624Skmacytypedef uint32_t	Elf32_Word;	/* Unsigned large integer */
35181624Skmacytypedef uint16_t	Elf32_Half;	/* Unsigned medium integer */
36181624Skmacy
37181624Skmacytypedef uint64_t	Elf64_Addr;
38181624Skmacytypedef uint64_t	Elf64_Off;
39181624Skmacytypedef int32_t		Elf64_Shalf;
40181624Skmacy
41181624Skmacytypedef int32_t		Elf64_Sword;
42181624Skmacytypedef uint32_t	Elf64_Word;
43181624Skmacy
44181624Skmacytypedef int64_t		Elf64_Sxword;
45181624Skmacytypedef uint64_t	Elf64_Xword;
46181624Skmacy
47181624Skmacytypedef uint32_t	Elf64_Half;
48181624Skmacytypedef uint16_t	Elf64_Quarter;
49181624Skmacy
50181624Skmacy/*
51181624Skmacy * e_ident[] identification indexes
52181624Skmacy * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
53181624Skmacy */
54181624Skmacy#define EI_MAG0		0		/* file ID */
55181624Skmacy#define EI_MAG1		1		/* file ID */
56181624Skmacy#define EI_MAG2		2		/* file ID */
57181624Skmacy#define EI_MAG3		3		/* file ID */
58181624Skmacy#define EI_CLASS	4		/* file class */
59181624Skmacy#define EI_DATA		5		/* data encoding */
60181624Skmacy#define EI_VERSION	6		/* ELF header version */
61181624Skmacy#define EI_OSABI	7		/* OS/ABI ID */
62181624Skmacy#define EI_ABIVERSION	8		/* ABI version */
63181624Skmacy#define EI_PAD		9		/* start of pad bytes */
64181624Skmacy#define EI_NIDENT	16		/* Size of e_ident[] */
65181624Skmacy
66181624Skmacy/* e_ident[] magic number */
67181624Skmacy#define	ELFMAG0		0x7f		/* e_ident[EI_MAG0] */
68181624Skmacy#define	ELFMAG1		'E'		/* e_ident[EI_MAG1] */
69181624Skmacy#define	ELFMAG2		'L'		/* e_ident[EI_MAG2] */
70181624Skmacy#define	ELFMAG3		'F'		/* e_ident[EI_MAG3] */
71181624Skmacy#define	ELFMAG		"\177ELF"	/* magic */
72181624Skmacy#define	SELFMAG		4		/* size of magic */
73181624Skmacy
74181624Skmacy/* e_ident[] file class */
75181624Skmacy#define	ELFCLASSNONE	0		/* invalid */
76181624Skmacy#define	ELFCLASS32	1		/* 32-bit objs */
77181624Skmacy#define	ELFCLASS64	2		/* 64-bit objs */
78181624Skmacy#define	ELFCLASSNUM	3		/* number of classes */
79181624Skmacy
80181624Skmacy/* e_ident[] data encoding */
81181624Skmacy#define ELFDATANONE	0		/* invalid */
82181624Skmacy#define ELFDATA2LSB	1		/* Little-Endian */
83181624Skmacy#define ELFDATA2MSB	2		/* Big-Endian */
84181624Skmacy#define ELFDATANUM	3		/* number of data encode defines */
85181624Skmacy
86181624Skmacy/* e_ident[] Operating System/ABI */
87181624Skmacy#define ELFOSABI_SYSV		0	/* UNIX System V ABI */
88181624Skmacy#define ELFOSABI_HPUX		1	/* HP-UX operating system */
89181624Skmacy#define ELFOSABI_NETBSD		2	/* NetBSD */
90181624Skmacy#define ELFOSABI_LINUX		3	/* GNU/Linux */
91181624Skmacy#define ELFOSABI_HURD		4	/* GNU/Hurd */
92181624Skmacy#define ELFOSABI_86OPEN		5	/* 86Open common IA32 ABI */
93181624Skmacy#define ELFOSABI_SOLARIS	6	/* Solaris */
94181624Skmacy#define ELFOSABI_MONTEREY	7	/* Monterey */
95181624Skmacy#define ELFOSABI_IRIX		8	/* IRIX */
96181624Skmacy#define ELFOSABI_FREEBSD	9	/* FreeBSD */
97181624Skmacy#define ELFOSABI_TRU64		10	/* TRU64 UNIX */
98181624Skmacy#define ELFOSABI_MODESTO	11	/* Novell Modesto */
99181624Skmacy#define ELFOSABI_OPENBSD	12	/* OpenBSD */
100181624Skmacy#define ELFOSABI_ARM		97	/* ARM */
101181624Skmacy#define ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */
102181624Skmacy
103181624Skmacy/* e_ident */
104181624Skmacy#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
105181624Skmacy                      (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
106181624Skmacy                      (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
107181624Skmacy                      (ehdr).e_ident[EI_MAG3] == ELFMAG3)
108181624Skmacy
109181624Skmacy/* ELF Header */
110181624Skmacytypedef struct elfhdr {
111181624Skmacy	unsigned char	e_ident[EI_NIDENT]; /* ELF Identification */
112181624Skmacy	Elf32_Half	e_type;		/* object file type */
113181624Skmacy	Elf32_Half	e_machine;	/* machine */
114181624Skmacy	Elf32_Word	e_version;	/* object file version */
115181624Skmacy	Elf32_Addr	e_entry;	/* virtual entry point */
116181624Skmacy	Elf32_Off	e_phoff;	/* program header table offset */
117181624Skmacy	Elf32_Off	e_shoff;	/* section header table offset */
118181624Skmacy	Elf32_Word	e_flags;	/* processor-specific flags */
119181624Skmacy	Elf32_Half	e_ehsize;	/* ELF header size */
120181624Skmacy	Elf32_Half	e_phentsize;	/* program header entry size */
121181624Skmacy	Elf32_Half	e_phnum;	/* number of program header entries */
122181624Skmacy	Elf32_Half	e_shentsize;	/* section header entry size */
123181624Skmacy	Elf32_Half	e_shnum;	/* number of section header entries */
124181624Skmacy	Elf32_Half	e_shstrndx;	/* section header table's "section
125181624Skmacy					   header string table" entry offset */
126181624Skmacy} Elf32_Ehdr;
127181624Skmacy
128181624Skmacytypedef struct {
129181624Skmacy	unsigned char	e_ident[EI_NIDENT];	/* Id bytes */
130181624Skmacy	Elf64_Quarter	e_type;			/* file type */
131181624Skmacy	Elf64_Quarter	e_machine;		/* machine type */
132181624Skmacy	Elf64_Half	e_version;		/* version number */
133181624Skmacy	Elf64_Addr	e_entry;		/* entry point */
134181624Skmacy	Elf64_Off	e_phoff;		/* Program hdr offset */
135181624Skmacy	Elf64_Off	e_shoff;		/* Section hdr offset */
136181624Skmacy	Elf64_Half	e_flags;		/* Processor flags */
137181624Skmacy	Elf64_Quarter	e_ehsize;		/* sizeof ehdr */
138181624Skmacy	Elf64_Quarter	e_phentsize;		/* Program header entry size */
139181624Skmacy	Elf64_Quarter	e_phnum;		/* Number of program headers */
140181624Skmacy	Elf64_Quarter	e_shentsize;		/* Section header entry size */
141181624Skmacy	Elf64_Quarter	e_shnum;		/* Number of section headers */
142181624Skmacy	Elf64_Quarter	e_shstrndx;		/* String table index */
143181624Skmacy} Elf64_Ehdr;
144181624Skmacy
145181624Skmacy/* e_type */
146181624Skmacy#define ET_NONE		0		/* No file type */
147181624Skmacy#define ET_REL		1		/* relocatable file */
148181624Skmacy#define ET_EXEC		2		/* executable file */
149181624Skmacy#define ET_DYN		3		/* shared object file */
150181624Skmacy#define ET_CORE		4		/* core file */
151181624Skmacy#define ET_NUM		5		/* number of types */
152181624Skmacy#define ET_LOPROC	0xff00		/* reserved range for processor */
153181624Skmacy#define ET_HIPROC	0xffff		/*  specific e_type */
154181624Skmacy
155181624Skmacy/* e_machine */
156181624Skmacy#define EM_NONE		0		/* No Machine */
157181624Skmacy#define EM_M32		1		/* AT&T WE 32100 */
158181624Skmacy#define EM_SPARC	2		/* SPARC */
159181624Skmacy#define EM_386		3		/* Intel 80386 */
160181624Skmacy#define EM_68K		4		/* Motorola 68000 */
161181624Skmacy#define EM_88K		5		/* Motorola 88000 */
162181624Skmacy#define EM_486		6		/* Intel 80486 - unused? */
163181624Skmacy#define EM_860		7		/* Intel 80860 */
164181624Skmacy#define EM_MIPS		8		/* MIPS R3000 Big-Endian only */
165181624Skmacy/*
166181624Skmacy * Don't know if EM_MIPS_RS4_BE,
167181624Skmacy * EM_SPARC64, EM_PARISC,
168181624Skmacy * or EM_PPC are ABI compliant
169181624Skmacy */
170181624Skmacy#define EM_MIPS_RS4_BE	10		/* MIPS R4000 Big-Endian */
171181624Skmacy#define EM_SPARC64	11		/* SPARC v9 64-bit unoffical */
172181624Skmacy#define EM_PARISC	15		/* HPPA */
173181624Skmacy#define EM_SPARC32PLUS	18		/* Enhanced instruction set SPARC */
174181624Skmacy#define EM_PPC		20		/* PowerPC */
175181624Skmacy#define EM_PPC64	21		/* PowerPC 64-bit */
176181624Skmacy#define EM_ARM		40		/* Advanced RISC Machines ARM */
177181624Skmacy#define EM_ALPHA	41		/* DEC ALPHA */
178181624Skmacy#define EM_SPARCV9	43		/* SPARC version 9 */
179181624Skmacy#define EM_ALPHA_EXP	0x9026		/* DEC ALPHA */
180181624Skmacy#define EM_IA_64	50		/* Intel Merced */
181181624Skmacy#define EM_X86_64	62		/* AMD x86-64 architecture */
182181624Skmacy#define EM_VAX		75		/* DEC VAX */
183181624Skmacy
184181624Skmacy/* Version */
185181624Skmacy#define EV_NONE		0		/* Invalid */
186181624Skmacy#define EV_CURRENT	1		/* Current */
187181624Skmacy#define EV_NUM		2		/* number of versions */
188181624Skmacy
189181624Skmacy/* Section Header */
190181624Skmacytypedef struct {
191181624Skmacy	Elf32_Word	sh_name;	/* name - index into section header
192181624Skmacy					   string table section */
193181624Skmacy	Elf32_Word	sh_type;	/* type */
194181624Skmacy	Elf32_Word	sh_flags;	/* flags */
195181624Skmacy	Elf32_Addr	sh_addr;	/* address */
196181624Skmacy	Elf32_Off	sh_offset;	/* file offset */
197181624Skmacy	Elf32_Word	sh_size;	/* section size */
198181624Skmacy	Elf32_Word	sh_link;	/* section header table index link */
199181624Skmacy	Elf32_Word	sh_info;	/* extra information */
200181624Skmacy	Elf32_Word	sh_addralign;	/* address alignment */
201181624Skmacy	Elf32_Word	sh_entsize;	/* section entry size */
202181624Skmacy} Elf32_Shdr;
203181624Skmacy
204181624Skmacytypedef struct {
205181624Skmacy	Elf64_Half	sh_name;	/* section name */
206181624Skmacy	Elf64_Half	sh_type;	/* section type */
207181624Skmacy	Elf64_Xword	sh_flags;	/* section flags */
208181624Skmacy	Elf64_Addr	sh_addr;	/* virtual address */
209181624Skmacy	Elf64_Off	sh_offset;	/* file offset */
210181624Skmacy	Elf64_Xword	sh_size;	/* section size */
211181624Skmacy	Elf64_Half	sh_link;	/* link to another */
212181624Skmacy	Elf64_Half	sh_info;	/* misc info */
213181624Skmacy	Elf64_Xword	sh_addralign;	/* memory alignment */
214181624Skmacy	Elf64_Xword	sh_entsize;	/* table entry size */
215181624Skmacy} Elf64_Shdr;
216181624Skmacy
217181624Skmacy/* Special Section Indexes */
218181624Skmacy#define SHN_UNDEF	0		/* undefined */
219181624Skmacy#define SHN_LORESERVE	0xff00		/* lower bounds of reserved indexes */
220181624Skmacy#define SHN_LOPROC	0xff00		/* reserved range for processor */
221181624Skmacy#define SHN_HIPROC	0xff1f		/*   specific section indexes */
222181624Skmacy#define SHN_ABS		0xfff1		/* absolute value */
223181624Skmacy#define SHN_COMMON	0xfff2		/* common symbol */
224181624Skmacy#define SHN_HIRESERVE	0xffff		/* upper bounds of reserved indexes */
225181624Skmacy
226181624Skmacy/* sh_type */
227181624Skmacy#define SHT_NULL	0		/* inactive */
228181624Skmacy#define SHT_PROGBITS	1		/* program defined information */
229181624Skmacy#define SHT_SYMTAB	2		/* symbol table section */
230181624Skmacy#define SHT_STRTAB	3		/* string table section */
231181624Skmacy#define SHT_RELA	4		/* relocation section with addends*/
232181624Skmacy#define SHT_HASH	5		/* symbol hash table section */
233181624Skmacy#define SHT_DYNAMIC	6		/* dynamic section */
234181624Skmacy#define SHT_NOTE	7		/* note section */
235181624Skmacy#define SHT_NOBITS	8		/* no space section */
236181624Skmacy#define SHT_REL		9		/* relation section without addends */
237181624Skmacy#define SHT_SHLIB	10		/* reserved - purpose unknown */
238181624Skmacy#define SHT_DYNSYM	11		/* dynamic symbol table section */
239181624Skmacy#define SHT_NUM		12		/* number of section types */
240181624Skmacy#define SHT_LOPROC	0x70000000	/* reserved range for processor */
241181624Skmacy#define SHT_HIPROC	0x7fffffff	/*  specific section header types */
242181624Skmacy#define SHT_LOUSER	0x80000000	/* reserved range for application */
243181624Skmacy#define SHT_HIUSER	0xffffffff	/*  specific indexes */
244181624Skmacy
245181624Skmacy/* Section names */
246181624Skmacy#define ELF_BSS         ".bss"		/* uninitialized data */
247181624Skmacy#define ELF_DATA        ".data"		/* initialized data */
248181624Skmacy#define ELF_DEBUG       ".debug"	/* debug */
249181624Skmacy#define ELF_DYNAMIC     ".dynamic"	/* dynamic linking information */
250181624Skmacy#define ELF_DYNSTR      ".dynstr"	/* dynamic string table */
251181624Skmacy#define ELF_DYNSYM      ".dynsym"	/* dynamic symbol table */
252181624Skmacy#define ELF_FINI        ".fini"		/* termination code */
253181624Skmacy#define ELF_GOT         ".got"		/* global offset table */
254181624Skmacy#define ELF_HASH        ".hash"		/* symbol hash table */
255181624Skmacy#define ELF_INIT        ".init"		/* initialization code */
256181624Skmacy#define ELF_REL_DATA    ".rel.data"	/* relocation data */
257181624Skmacy#define ELF_REL_FINI    ".rel.fini"	/* relocation termination code */
258181624Skmacy#define ELF_REL_INIT    ".rel.init"	/* relocation initialization code */
259181624Skmacy#define ELF_REL_DYN     ".rel.dyn"	/* relocaltion dynamic link info */
260181624Skmacy#define ELF_REL_RODATA  ".rel.rodata"	/* relocation read-only data */
261181624Skmacy#define ELF_REL_TEXT    ".rel.text"	/* relocation code */
262181624Skmacy#define ELF_RODATA      ".rodata"	/* read-only data */
263181624Skmacy#define ELF_SHSTRTAB    ".shstrtab"	/* section header string table */
264181624Skmacy#define ELF_STRTAB      ".strtab"	/* string table */
265181624Skmacy#define ELF_SYMTAB      ".symtab"	/* symbol table */
266181624Skmacy#define ELF_TEXT        ".text"		/* code */
267181624Skmacy
268181624Skmacy
269181624Skmacy/* Section Attribute Flags - sh_flags */
270181624Skmacy#define SHF_WRITE	0x1		/* Writable */
271181624Skmacy#define SHF_ALLOC	0x2		/* occupies memory */
272181624Skmacy#define SHF_EXECINSTR	0x4		/* executable */
273181624Skmacy#define SHF_MASKPROC	0xf0000000	/* reserved bits for processor */
274181624Skmacy					/*  specific section attributes */
275181624Skmacy
276181624Skmacy/* Symbol Table Entry */
277181624Skmacytypedef struct elf32_sym {
278181624Skmacy	Elf32_Word	st_name;	/* name - index into string table */
279181624Skmacy	Elf32_Addr	st_value;	/* symbol value */
280181624Skmacy	Elf32_Word	st_size;	/* symbol size */
281181624Skmacy	unsigned char	st_info;	/* type and binding */
282181624Skmacy	unsigned char	st_other;	/* 0 - no defined meaning */
283181624Skmacy	Elf32_Half	st_shndx;	/* section header index */
284181624Skmacy} Elf32_Sym;
285181624Skmacy
286181624Skmacytypedef struct {
287181624Skmacy	Elf64_Half	st_name;	/* Symbol name index in str table */
288181624Skmacy	Elf_Byte	st_info;	/* type / binding attrs */
289181624Skmacy	Elf_Byte	st_other;	/* unused */
290181624Skmacy	Elf64_Quarter	st_shndx;	/* section index of symbol */
291181624Skmacy	Elf64_Xword	st_value;	/* value of symbol */
292181624Skmacy	Elf64_Xword	st_size;	/* size of symbol */
293181624Skmacy} Elf64_Sym;
294181624Skmacy
295181624Skmacy/* Symbol table index */
296181624Skmacy#define STN_UNDEF	0		/* undefined */
297181624Skmacy
298181624Skmacy/* Extract symbol info - st_info */
299181624Skmacy#define ELF32_ST_BIND(x)	((x) >> 4)
300181624Skmacy#define ELF32_ST_TYPE(x)	(((unsigned int) x) & 0xf)
301181624Skmacy#define ELF32_ST_INFO(b,t)	(((b) << 4) + ((t) & 0xf))
302181624Skmacy
303181624Skmacy#define ELF64_ST_BIND(x)	((x) >> 4)
304181624Skmacy#define ELF64_ST_TYPE(x)	(((unsigned int) x) & 0xf)
305181624Skmacy#define ELF64_ST_INFO(b,t)	(((b) << 4) + ((t) & 0xf))
306181624Skmacy
307181624Skmacy/* Symbol Binding - ELF32_ST_BIND - st_info */
308181624Skmacy#define STB_LOCAL	0		/* Local symbol */
309181624Skmacy#define STB_GLOBAL	1		/* Global symbol */
310181624Skmacy#define STB_WEAK	2		/* like global - lower precedence */
311181624Skmacy#define STB_NUM		3		/* number of symbol bindings */
312181624Skmacy#define STB_LOPROC	13		/* reserved range for processor */
313181624Skmacy#define STB_HIPROC	15		/*  specific symbol bindings */
314181624Skmacy
315181624Skmacy/* Symbol type - ELF32_ST_TYPE - st_info */
316181624Skmacy#define STT_NOTYPE	0		/* not specified */
317181624Skmacy#define STT_OBJECT	1		/* data object */
318181624Skmacy#define STT_FUNC	2		/* function */
319181624Skmacy#define STT_SECTION	3		/* section */
320181624Skmacy#define STT_FILE	4		/* file */
321181624Skmacy#define STT_NUM		5		/* number of symbol types */
322181624Skmacy#define STT_LOPROC	13		/* reserved range for processor */
323181624Skmacy#define STT_HIPROC	15		/*  specific symbol types */
324181624Skmacy
325181624Skmacy/* Relocation entry with implicit addend */
326181624Skmacytypedef struct {
327181624Skmacy	Elf32_Addr	r_offset;	/* offset of relocation */
328181624Skmacy	Elf32_Word	r_info;		/* symbol table index and type */
329181624Skmacy} Elf32_Rel;
330181624Skmacy
331181624Skmacy/* Relocation entry with explicit addend */
332181624Skmacytypedef struct {
333181624Skmacy	Elf32_Addr	r_offset;	/* offset of relocation */
334181624Skmacy	Elf32_Word	r_info;		/* symbol table index and type */
335181624Skmacy	Elf32_Sword	r_addend;
336181624Skmacy} Elf32_Rela;
337181624Skmacy
338181624Skmacy/* Extract relocation info - r_info */
339181624Skmacy#define ELF32_R_SYM(i)		((i) >> 8)
340181624Skmacy#define ELF32_R_TYPE(i)		((unsigned char) (i))
341181624Skmacy#define ELF32_R_INFO(s,t) 	(((s) << 8) + (unsigned char)(t))
342181624Skmacy
343181624Skmacytypedef struct {
344181624Skmacy	Elf64_Xword	r_offset;	/* where to do it */
345181624Skmacy	Elf64_Xword	r_info;		/* index & type of relocation */
346181624Skmacy} Elf64_Rel;
347181624Skmacy
348181624Skmacytypedef struct {
349181624Skmacy	Elf64_Xword	r_offset;	/* where to do it */
350181624Skmacy	Elf64_Xword	r_info;		/* index & type of relocation */
351181624Skmacy	Elf64_Sxword	r_addend;	/* adjustment value */
352181624Skmacy} Elf64_Rela;
353181624Skmacy
354181624Skmacy#define	ELF64_R_SYM(info)	((info) >> 32)
355181624Skmacy#define	ELF64_R_TYPE(info)	((info) & 0xFFFFFFFF)
356181624Skmacy#define ELF64_R_INFO(s,t) 	(((s) << 32) + (u_int32_t)(t))
357181624Skmacy
358181624Skmacy/* Program Header */
359181624Skmacytypedef struct {
360181624Skmacy	Elf32_Word	p_type;		/* segment type */
361181624Skmacy	Elf32_Off	p_offset;	/* segment offset */
362181624Skmacy	Elf32_Addr	p_vaddr;	/* virtual address of segment */
363181624Skmacy	Elf32_Addr	p_paddr;	/* physical address - ignored? */
364181624Skmacy	Elf32_Word	p_filesz;	/* number of bytes in file for seg. */
365181624Skmacy	Elf32_Word	p_memsz;	/* number of bytes in mem. for seg. */
366181624Skmacy	Elf32_Word	p_flags;	/* flags */
367181624Skmacy	Elf32_Word	p_align;	/* memory alignment */
368181624Skmacy} Elf32_Phdr;
369181624Skmacy
370181624Skmacytypedef struct {
371181624Skmacy	Elf64_Half	p_type;		/* entry type */
372181624Skmacy	Elf64_Half	p_flags;	/* flags */
373181624Skmacy	Elf64_Off	p_offset;	/* offset */
374181624Skmacy	Elf64_Addr	p_vaddr;	/* virtual address */
375181624Skmacy	Elf64_Addr	p_paddr;	/* physical address */
376181624Skmacy	Elf64_Xword	p_filesz;	/* file size */
377181624Skmacy	Elf64_Xword	p_memsz;	/* memory size */
378181624Skmacy	Elf64_Xword	p_align;	/* memory & file alignment */
379181624Skmacy} Elf64_Phdr;
380181624Skmacy
381181624Skmacy/* Segment types - p_type */
382181624Skmacy#define PT_NULL		0		/* unused */
383181624Skmacy#define PT_LOAD		1		/* loadable segment */
384181624Skmacy#define PT_DYNAMIC	2		/* dynamic linking section */
385181624Skmacy#define PT_INTERP	3		/* the RTLD */
386181624Skmacy#define PT_NOTE		4		/* auxiliary information */
387181624Skmacy#define PT_SHLIB	5		/* reserved - purpose undefined */
388181624Skmacy#define PT_PHDR		6		/* program header */
389181624Skmacy#define PT_NUM		7		/* Number of segment types */
390181624Skmacy#define PT_LOPROC	0x70000000	/* reserved range for processor */
391181624Skmacy#define PT_HIPROC	0x7fffffff	/*  specific segment types */
392181624Skmacy
393181624Skmacy/* Segment flags - p_flags */
394181624Skmacy#define PF_X		0x1		/* Executable */
395181624Skmacy#define PF_W		0x2		/* Writable */
396181624Skmacy#define PF_R		0x4		/* Readable */
397181624Skmacy#define PF_MASKPROC	0xf0000000	/* reserved bits for processor */
398181624Skmacy					/*  specific segment flags */
399181624Skmacy
400181624Skmacy/* Dynamic structure */
401181624Skmacytypedef struct {
402181624Skmacy	Elf32_Sword	d_tag;		/* controls meaning of d_val */
403181624Skmacy	union {
404181624Skmacy		Elf32_Word	d_val;	/* Multiple meanings - see d_tag */
405181624Skmacy		Elf32_Addr	d_ptr;	/* program virtual address */
406181624Skmacy	} d_un;
407181624Skmacy} Elf32_Dyn;
408181624Skmacy
409181624Skmacytypedef struct {
410181624Skmacy	Elf64_Xword	d_tag;		/* controls meaning of d_val */
411181624Skmacy	union {
412181624Skmacy		Elf64_Addr	d_ptr;
413181624Skmacy		Elf64_Xword	d_val;
414181624Skmacy	} d_un;
415181624Skmacy} Elf64_Dyn;
416181624Skmacy
417181624Skmacy/* Dynamic Array Tags - d_tag */
418181624Skmacy#define DT_NULL		0		/* marks end of _DYNAMIC array */
419181624Skmacy#define DT_NEEDED	1		/* string table offset of needed lib */
420181624Skmacy#define DT_PLTRELSZ	2		/* size of relocation entries in PLT */
421181624Skmacy#define DT_PLTGOT	3		/* address PLT/GOT */
422181624Skmacy#define DT_HASH		4		/* address of symbol hash table */
423181624Skmacy#define DT_STRTAB	5		/* address of string table */
424181624Skmacy#define DT_SYMTAB	6		/* address of symbol table */
425181624Skmacy#define DT_RELA		7		/* address of relocation table */
426181624Skmacy#define DT_RELASZ	8		/* size of relocation table */
427181624Skmacy#define DT_RELAENT	9		/* size of relocation entry */
428181624Skmacy#define DT_STRSZ	10		/* size of string table */
429181624Skmacy#define DT_SYMENT	11		/* size of symbol table entry */
430181624Skmacy#define DT_INIT		12		/* address of initialization func. */
431181624Skmacy#define DT_FINI		13		/* address of termination function */
432181624Skmacy#define DT_SONAME	14		/* string table offset of shared obj */
433181624Skmacy#define DT_RPATH	15		/* string table offset of library
434181624Skmacy					   search path */
435181624Skmacy#define DT_SYMBOLIC	16		/* start sym search in shared obj. */
436181624Skmacy#define DT_REL		17		/* address of rel. tbl. w addends */
437181624Skmacy#define DT_RELSZ	18		/* size of DT_REL relocation table */
438181624Skmacy#define DT_RELENT	19		/* size of DT_REL relocation entry */
439181624Skmacy#define DT_PLTREL	20		/* PLT referenced relocation entry */
440181624Skmacy#define DT_DEBUG	21		/* bugger */
441181624Skmacy#define DT_TEXTREL	22		/* Allow rel. mod. to unwritable seg */
442181624Skmacy#define DT_JMPREL	23		/* add. of PLT's relocation entries */
443181624Skmacy#define DT_BIND_NOW	24		/* Bind now regardless of env setting */
444181624Skmacy#define DT_NUM		25		/* Number used. */
445181624Skmacy#define DT_LOPROC	0x70000000	/* reserved range for processor */
446181624Skmacy#define DT_HIPROC	0x7fffffff	/*  specific dynamic array tags */
447181624Skmacy
448181624Skmacy/* Standard ELF hashing function */
449181624Skmacyunsigned int elf_hash(const unsigned char *name);
450181624Skmacy
451181624Skmacy/*
452181624Skmacy * Note Definitions
453181624Skmacy */
454181624Skmacytypedef struct {
455181624Skmacy	Elf32_Word namesz;
456181624Skmacy	Elf32_Word descsz;
457181624Skmacy	Elf32_Word type;
458181624Skmacy} Elf32_Note;
459181624Skmacy
460181624Skmacytypedef struct {
461181624Skmacy	Elf64_Half namesz;
462181624Skmacy	Elf64_Half descsz;
463181624Skmacy	Elf64_Half type;
464181624Skmacy} Elf64_Note;
465181624Skmacy
466181624Skmacy
467181624Skmacy#if defined(ELFSIZE)
468181624Skmacy#define CONCAT(x,y)	__CONCAT(x,y)
469181624Skmacy#define ELFNAME(x)	CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
470181624Skmacy#define ELFNAME2(x,y)	CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
471181624Skmacy#define ELFNAMEEND(x)	CONCAT(x,CONCAT(_elf,ELFSIZE))
472181624Skmacy#define ELFDEFNNAME(x)	CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
473181624Skmacy#endif
474181624Skmacy
475181624Skmacy#if defined(ELFSIZE) && (ELFSIZE == 32)
476181624Skmacy#define Elf_Ehdr	Elf32_Ehdr
477181624Skmacy#define Elf_Phdr	Elf32_Phdr
478181624Skmacy#define Elf_Shdr	Elf32_Shdr
479181624Skmacy#define Elf_Sym		Elf32_Sym
480181624Skmacy#define Elf_Rel		Elf32_Rel
481181624Skmacy#define Elf_RelA	Elf32_Rela
482181624Skmacy#define Elf_Dyn		Elf32_Dyn
483181624Skmacy#define Elf_Word	Elf32_Word
484181624Skmacy#define Elf_Sword	Elf32_Sword
485181624Skmacy#define Elf_Addr	Elf32_Addr
486181624Skmacy#define Elf_Off		Elf32_Off
487181624Skmacy#define Elf_Nhdr	Elf32_Nhdr
488181624Skmacy#define Elf_Note	Elf32_Note
489181624Skmacy
490181624Skmacy#define ELF_R_SYM	ELF32_R_SYM
491181624Skmacy#define ELF_R_TYPE	ELF32_R_TYPE
492181624Skmacy#define ELF_R_INFO	ELF32_R_INFO
493181624Skmacy#define ELFCLASS	ELFCLASS32
494181624Skmacy
495181624Skmacy#define ELF_ST_BIND	ELF32_ST_BIND
496181624Skmacy#define ELF_ST_TYPE	ELF32_ST_TYPE
497181624Skmacy#define ELF_ST_INFO	ELF32_ST_INFO
498181624Skmacy
499181624Skmacy#define AuxInfo		Aux32Info
500181624Skmacy#elif defined(ELFSIZE) && (ELFSIZE == 64)
501181624Skmacy#define Elf_Ehdr	Elf64_Ehdr
502181624Skmacy#define Elf_Phdr	Elf64_Phdr
503181624Skmacy#define Elf_Shdr	Elf64_Shdr
504181624Skmacy#define Elf_Sym		Elf64_Sym
505181624Skmacy#define Elf_Rel		Elf64_Rel
506181624Skmacy#define Elf_RelA	Elf64_Rela
507181624Skmacy#define Elf_Dyn		Elf64_Dyn
508181624Skmacy#define Elf_Word	Elf64_Word
509181624Skmacy#define Elf_Sword	Elf64_Sword
510181624Skmacy#define Elf_Addr	Elf64_Addr
511181624Skmacy#define Elf_Off		Elf64_Off
512181624Skmacy#define Elf_Nhdr	Elf64_Nhdr
513181624Skmacy#define Elf_Note	Elf64_Note
514181624Skmacy
515181624Skmacy#define ELF_R_SYM	ELF64_R_SYM
516181624Skmacy#define ELF_R_TYPE	ELF64_R_TYPE
517181624Skmacy#define ELF_R_INFO	ELF64_R_INFO
518181624Skmacy#define ELFCLASS	ELFCLASS64
519181624Skmacy
520181624Skmacy#define ELF_ST_BIND	ELF64_ST_BIND
521181624Skmacy#define ELF_ST_TYPE	ELF64_ST_TYPE
522181624Skmacy#define ELF_ST_INFO	ELF64_ST_INFO
523181624Skmacy
524181624Skmacy#define AuxInfo		Aux64Info
525181624Skmacy#endif
526181624Skmacy
527181624Skmacy#endif /* __XEN_PUBLIC_ELFSTRUCTS_H__ */
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