blob: f6403881bff19f5f7d4ae09308ef0a14fc92c5ce [file] [log] [blame]
wdenka2cecab2002-09-30 20:45:01 +00001/*
2 * Copyright (c) 1995, 1996, 2001, 2002
3 * Erik Theisen. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28/*
29 * This is the ELF ABI header file
30 * formerly known as "elf_abi.h".
31 */
32
33#ifndef _ELF_H
34#define _ELF_H
35
36#if defined(__BEOS__) || \
37 defined(__NetBSD__) || \
38 defined(__FreeBSD__) || \
39 defined(__sun__) || \
40 defined(__APPLE__)
41#include <inttypes.h>
Peter Tyser24d2ae52009-03-13 18:54:28 -050042#elif (defined(__linux__) && defined(USE_HOSTCC)) || defined(__WIN32__)
wdenka2cecab2002-09-30 20:45:01 +000043#include <stdint.h>
44#endif
45
wdenka2cecab2002-09-30 20:45:01 +000046/*
47 * This version doesn't work for 64-bit ABIs - Erik.
48 */
49
50/*
51 * These typedefs need to be handled better.
52 */
53typedef uint32_t Elf32_Addr; /* Unsigned program address */
54typedef uint32_t Elf32_Off; /* Unsigned file offset */
55typedef int32_t Elf32_Sword; /* Signed large integer */
56typedef uint32_t Elf32_Word; /* Unsigned large integer */
57typedef uint16_t Elf32_Half; /* Unsigned medium integer */
58
59/* e_ident[] identification indexes */
60#define EI_MAG0 0 /* file ID */
61#define EI_MAG1 1 /* file ID */
62#define EI_MAG2 2 /* file ID */
63#define EI_MAG3 3 /* file ID */
64#define EI_CLASS 4 /* file class */
65#define EI_DATA 5 /* data encoding */
66#define EI_VERSION 6 /* ELF header version */
67#define EI_OSABI 7 /* OS/ABI specific ELF extensions */
68#define EI_ABIVERSION 8 /* ABI target version */
69#define EI_PAD 9 /* start of pad bytes */
70#define EI_NIDENT 16 /* Size of e_ident[] */
71
72/* e_ident[] magic number */
73#define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
74#define ELFMAG1 'E' /* e_ident[EI_MAG1] */
75#define ELFMAG2 'L' /* e_ident[EI_MAG2] */
76#define ELFMAG3 'F' /* e_ident[EI_MAG3] */
77#define ELFMAG "\177ELF" /* magic */
78#define SELFMAG 4 /* size of magic */
79
80/* e_ident[] file class */
81#define ELFCLASSNONE 0 /* invalid */
82#define ELFCLASS32 1 /* 32-bit objs */
83#define ELFCLASS64 2 /* 64-bit objs */
84#define ELFCLASSNUM 3 /* number of classes */
85
86/* e_ident[] data encoding */
87#define ELFDATANONE 0 /* invalid */
88#define ELFDATA2LSB 1 /* Little-Endian */
89#define ELFDATA2MSB 2 /* Big-Endian */
90#define ELFDATANUM 3 /* number of data encode defines */
91
92/* e_ident[] OS/ABI specific ELF extensions */
93#define ELFOSABI_NONE 0 /* No extension specified */
94#define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */
95#define ELFOSABI_NETBSD 2 /* NetBSD */
96#define ELFOSABI_LINUX 3 /* Linux */
97#define ELFOSABI_SOLARIS 6 /* Sun Solaris */
98#define ELFOSABI_AIX 7 /* AIX */
99#define ELFOSABI_IRIX 8 /* IRIX */
100#define ELFOSABI_FREEBSD 9 /* FreeBSD */
101#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */
102#define ELFOSABI_MODESTO 11 /* Novell Modesto */
103#define ELFOSABI_OPENBSD 12 /* OpenBSD */
104/* 64-255 Architecture-specific value range */
105
106/* e_ident[] ABI Version */
107#define ELFABIVERSION 0
108
109/* e_ident */
110#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
wdenk8bde7f72003-06-27 21:31:46 +0000111 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
112 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
113 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
wdenka2cecab2002-09-30 20:45:01 +0000114
115/* ELF Header */
116typedef struct elfhdr{
117 unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
118 Elf32_Half e_type; /* object file type */
119 Elf32_Half e_machine; /* machine */
120 Elf32_Word e_version; /* object file version */
121 Elf32_Addr e_entry; /* virtual entry point */
122 Elf32_Off e_phoff; /* program header table offset */
123 Elf32_Off e_shoff; /* section header table offset */
124 Elf32_Word e_flags; /* processor-specific flags */
125 Elf32_Half e_ehsize; /* ELF header size */
126 Elf32_Half e_phentsize; /* program header entry size */
127 Elf32_Half e_phnum; /* number of program header entries */
128 Elf32_Half e_shentsize; /* section header entry size */
129 Elf32_Half e_shnum; /* number of section header entries */
130 Elf32_Half e_shstrndx; /* section header table's "section
131 header string table" entry offset */
132} Elf32_Ehdr;
133
134/* e_type */
135#define ET_NONE 0 /* No file type */
136#define ET_REL 1 /* relocatable file */
137#define ET_EXEC 2 /* executable file */
138#define ET_DYN 3 /* shared object file */
139#define ET_CORE 4 /* core file */
140#define ET_NUM 5 /* number of types */
141#define ET_LOOS 0xfe00 /* reserved range for operating */
142#define ET_HIOS 0xfeff /* system specific e_type */
143#define ET_LOPROC 0xff00 /* reserved range for processor */
144#define ET_HIPROC 0xffff /* specific e_type */
145
146/* e_machine */
147#define EM_NONE 0 /* No Machine */
148#define EM_M32 1 /* AT&T WE 32100 */
149#define EM_SPARC 2 /* SPARC */
150#define EM_386 3 /* Intel 80386 */
151#define EM_68K 4 /* Motorola 68000 */
152#define EM_88K 5 /* Motorola 88000 */
153#if 0
154#define EM_486 6 /* RESERVED - was Intel 80486 */
155#endif
156#define EM_860 7 /* Intel 80860 */
157#define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
158#define EM_S370 9 /* IBM System/370 Processor */
159#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
160#if 0
161#define EM_SPARC64 11 /* RESERVED - was SPARC v9
162 64-bit unoffical */
163#endif
164/* RESERVED 11-14 for future use */
165#define EM_PARISC 15 /* HPPA */
166/* RESERVED 16 for future use */
167#define EM_VPP500 17 /* Fujitsu VPP500 */
168#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
169#define EM_960 19 /* Intel 80960 */
170#define EM_PPC 20 /* PowerPC */
171#define EM_PPC64 21 /* 64-bit PowerPC */
172#define EM_S390 22 /* IBM System/390 Processor */
173/* RESERVED 23-35 for future use */
174#define EM_V800 36 /* NEC V800 */
175#define EM_FR20 37 /* Fujitsu FR20 */
176#define EM_RH32 38 /* TRW RH-32 */
177#define EM_RCE 39 /* Motorola RCE */
178#define EM_ARM 40 /* Advanced Risc Machines ARM */
179#define EM_ALPHA 41 /* Digital Alpha */
180#define EM_SH 42 /* Hitachi SH */
181#define EM_SPARCV9 43 /* SPARC Version 9 */
182#define EM_TRICORE 44 /* Siemens TriCore embedded processor */
183#define EM_ARC 45 /* Argonaut RISC Core */
184#define EM_H8_300 46 /* Hitachi H8/300 */
185#define EM_H8_300H 47 /* Hitachi H8/300H */
186#define EM_H8S 48 /* Hitachi H8S */
187#define EM_H8_500 49 /* Hitachi H8/500 */
188#define EM_IA_64 50 /* Intel Merced */
189#define EM_MIPS_X 51 /* Stanford MIPS-X */
190#define EM_COLDFIRE 52 /* Motorola Coldfire */
191#define EM_68HC12 53 /* Motorola M68HC12 */
192#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/
193#define EM_PCP 55 /* Siemens PCP */
194#define EM_NCPU 56 /* Sony nCPU embeeded RISC */
195#define EM_NDR1 57 /* Denso NDR1 microprocessor */
196#define EM_STARCORE 58 /* Motorola Start*Core processor */
197#define EM_ME16 59 /* Toyota ME16 processor */
198#define EM_ST100 60 /* STMicroelectronic ST100 processor */
199#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/
200#define EM_X86_64 62 /* AMD x86-64 */
201#define EM_PDSP 63 /* Sony DSP Processor */
202/* RESERVED 64,65 for future use */
203#define EM_FX66 66 /* Siemens FX66 microcontroller */
204#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
205#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
206#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
207#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
208#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
209#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
210#define EM_SVX 73 /* Silicon Graphics SVx */
211#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
212#define EM_VAX 75 /* Digital VAX */
213#define EM_CHRIS 76 /* Axis Communications embedded proc. */
214#define EM_JAVELIN 77 /* Infineon Technologies emb. proc. */
215#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
216#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
217#define EM_MMIX 80 /* Donald Knuth's edu 64-bit proc. */
218#define EM_HUANY 81 /* Harvard University mach-indep objs */
219#define EM_PRISM 82 /* SiTera Prism */
220#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
221#define EM_FR30 84 /* Fujitsu FR30 */
222#define EM_D10V 85 /* Mitsubishi DV10V */
223#define EM_D30V 86 /* Mitsubishi DV30V */
224#define EM_V850 87 /* NEC v850 */
225#define EM_M32R 88 /* Mitsubishi M32R */
226#define EM_MN10300 89 /* Matsushita MN10200 */
227#define EM_MN10200 90 /* Matsushita MN10200 */
228#define EM_PJ 91 /* picoJava */
229#define EM_NUM 92 /* number of machine types */
230
231/* Version */
232#define EV_NONE 0 /* Invalid */
233#define EV_CURRENT 1 /* Current */
234#define EV_NUM 2 /* number of versions */
235
236/* Section Header */
237typedef struct {
238 Elf32_Word sh_name; /* name - index into section header
239 string table section */
240 Elf32_Word sh_type; /* type */
241 Elf32_Word sh_flags; /* flags */
242 Elf32_Addr sh_addr; /* address */
243 Elf32_Off sh_offset; /* file offset */
244 Elf32_Word sh_size; /* section size */
245 Elf32_Word sh_link; /* section header table index link */
246 Elf32_Word sh_info; /* extra information */
247 Elf32_Word sh_addralign; /* address alignment */
248 Elf32_Word sh_entsize; /* section entry size */
249} Elf32_Shdr;
250
251/* Special Section Indexes */
252#define SHN_UNDEF 0 /* undefined */
253#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
254#define SHN_LOPROC 0xff00 /* reserved range for processor */
255#define SHN_HIPROC 0xff1f /* specific section indexes */
256#define SHN_LOOS 0xff20 /* reserved range for operating */
257#define SHN_HIOS 0xff3f /* specific semantics */
258#define SHN_ABS 0xfff1 /* absolute value */
259#define SHN_COMMON 0xfff2 /* common symbol */
260#define SHN_XINDEX 0xffff /* Index is an extra table */
261#define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
262
263/* sh_type */
264#define SHT_NULL 0 /* inactive */
265#define SHT_PROGBITS 1 /* program defined information */
266#define SHT_SYMTAB 2 /* symbol table section */
267#define SHT_STRTAB 3 /* string table section */
268#define SHT_RELA 4 /* relocation section with addends*/
269#define SHT_HASH 5 /* symbol hash table section */
270#define SHT_DYNAMIC 6 /* dynamic section */
271#define SHT_NOTE 7 /* note section */
272#define SHT_NOBITS 8 /* no space section */
273#define SHT_REL 9 /* relation section without addends */
274#define SHT_SHLIB 10 /* reserved - purpose unknown */
275#define SHT_DYNSYM 11 /* dynamic symbol table section */
276#define SHT_INIT_ARRAY 14 /* Array of constructors */
277#define SHT_FINI_ARRAY 15 /* Array of destructors */
278#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
279#define SHT_GROUP 17 /* Section group */
280#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
281#define SHT_NUM 19 /* number of section types */
282#define SHT_LOOS 0x60000000 /* Start OS-specific */
283#define SHT_HIOS 0x6fffffff /* End OS-specific */
284#define SHT_LOPROC 0x70000000 /* reserved range for processor */
285#define SHT_HIPROC 0x7fffffff /* specific section header types */
286#define SHT_LOUSER 0x80000000 /* reserved range for application */
287#define SHT_HIUSER 0xffffffff /* specific indexes */
288
289/* Section names */
290#define ELF_BSS ".bss" /* uninitialized data */
291#define ELF_COMMENT ".comment" /* version control information */
292#define ELF_DATA ".data" /* initialized data */
293#define ELF_DATA1 ".data1" /* initialized data */
294#define ELF_DEBUG ".debug" /* debug */
295#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
296#define ELF_DYNSTR ".dynstr" /* dynamic string table */
297#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
298#define ELF_FINI ".fini" /* termination code */
299#define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */
300#define ELF_GOT ".got" /* global offset table */
301#define ELF_HASH ".hash" /* symbol hash table */
302#define ELF_INIT ".init" /* initialization code */
303#define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */
304#define ELF_INTERP ".interp" /* Pathname of program interpreter */
305#define ELF_LINE ".line" /* Symbolic line numnber information */
306#define ELF_NOTE ".note" /* Contains note section */
307#define ELF_PLT ".plt" /* Procedure linkage table */
308#define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */
309#define ELF_REL_DATA ".rel.data" /* relocation data */
310#define ELF_REL_FINI ".rel.fini" /* relocation termination code */
311#define ELF_REL_INIT ".rel.init" /* relocation initialization code */
312#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
313#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
314#define ELF_REL_TEXT ".rel.text" /* relocation code */
315#define ELF_RODATA ".rodata" /* read-only data */
316#define ELF_RODATA1 ".rodata1" /* read-only data */
317#define ELF_SHSTRTAB ".shstrtab" /* section header string table */
318#define ELF_STRTAB ".strtab" /* string table */
319#define ELF_SYMTAB ".symtab" /* symbol table */
320#define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */
321#define ELF_TBSS ".tbss" /* thread local uninit data */
322#define ELF_TDATA ".tdata" /* thread local init data */
323#define ELF_TDATA1 ".tdata1" /* thread local init data */
324#define ELF_TEXT ".text" /* code */
325
326/* Section Attribute Flags - sh_flags */
327#define SHF_WRITE 0x1 /* Writable */
328#define SHF_ALLOC 0x2 /* occupies memory */
329#define SHF_EXECINSTR 0x4 /* executable */
330#define SHF_MERGE 0x10 /* Might be merged */
331#define SHF_STRINGS 0x20 /* Contains NULL terminated strings */
332#define SHF_INFO_LINK 0x40 /* sh_info contains SHT index */
333#define SHF_LINK_ORDER 0x80 /* Preserve order after combining*/
334#define SHF_OS_NONCONFORMING 0x100 /* Non-standard OS specific handling */
335#define SHF_GROUP 0x200 /* Member of section group */
336#define SHF_TLS 0x400 /* Thread local storage */
337#define SHF_MASKOS 0x0ff00000 /* OS specific */
338#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
339 /* specific section attributes */
340
341/* Section Group Flags */
342#define GRP_COMDAT 0x1 /* COMDAT group */
343#define GRP_MASKOS 0x0ff00000 /* Mask OS specific flags */
344#define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */
345
346/* Symbol Table Entry */
347typedef struct elf32_sym {
348 Elf32_Word st_name; /* name - index into string table */
349 Elf32_Addr st_value; /* symbol value */
350 Elf32_Word st_size; /* symbol size */
351 unsigned char st_info; /* type and binding */
352 unsigned char st_other; /* 0 - no defined meaning */
353 Elf32_Half st_shndx; /* section header index */
354} Elf32_Sym;
355
356/* Symbol table index */
357#define STN_UNDEF 0 /* undefined */
358
359/* Extract symbol info - st_info */
360#define ELF32_ST_BIND(x) ((x) >> 4)
361#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
362#define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
363#define ELF32_ST_VISIBILITY(x) ((x) & 0x3)
364
365/* Symbol Binding - ELF32_ST_BIND - st_info */
366#define STB_LOCAL 0 /* Local symbol */
367#define STB_GLOBAL 1 /* Global symbol */
368#define STB_WEAK 2 /* like global - lower precedence */
369#define STB_NUM 3 /* number of symbol bindings */
370#define STB_LOOS 10 /* reserved range for operating */
371#define STB_HIOS 12 /* system specific symbol bindings */
372#define STB_LOPROC 13 /* reserved range for processor */
373#define STB_HIPROC 15 /* specific symbol bindings */
374
375/* Symbol type - ELF32_ST_TYPE - st_info */
376#define STT_NOTYPE 0 /* not specified */
377#define STT_OBJECT 1 /* data object */
378#define STT_FUNC 2 /* function */
379#define STT_SECTION 3 /* section */
380#define STT_FILE 4 /* file */
381#define STT_NUM 5 /* number of symbol types */
382#define STT_TLS 6 /* Thread local storage symbol */
383#define STT_LOOS 10 /* reserved range for operating */
384#define STT_HIOS 12 /* system specific symbol types */
385#define STT_LOPROC 13 /* reserved range for processor */
386#define STT_HIPROC 15 /* specific symbol types */
387
388/* Symbol visibility - ELF32_ST_VISIBILITY - st_other */
389#define STV_DEFAULT 0 /* Normal visibility rules */
390#define STV_INTERNAL 1 /* Processor specific hidden class */
391#define STV_HIDDEN 2 /* Symbol unavailable in other mods */
392#define STV_PROTECTED 3 /* Not preemptible, not exported */
393
394
395/* Relocation entry with implicit addend */
396typedef struct
397{
398 Elf32_Addr r_offset; /* offset of relocation */
399 Elf32_Word r_info; /* symbol table index and type */
400} Elf32_Rel;
401
402/* Relocation entry with explicit addend */
403typedef struct
404{
405 Elf32_Addr r_offset; /* offset of relocation */
406 Elf32_Word r_info; /* symbol table index and type */
407 Elf32_Sword r_addend;
408} Elf32_Rela;
409
410/* Extract relocation info - r_info */
411#define ELF32_R_SYM(i) ((i) >> 8)
412#define ELF32_R_TYPE(i) ((unsigned char) (i))
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200413#define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
wdenka2cecab2002-09-30 20:45:01 +0000414
415/* Program Header */
416typedef struct {
417 Elf32_Word p_type; /* segment type */
418 Elf32_Off p_offset; /* segment offset */
419 Elf32_Addr p_vaddr; /* virtual address of segment */
420 Elf32_Addr p_paddr; /* physical address - ignored? */
421 Elf32_Word p_filesz; /* number of bytes in file for seg. */
422 Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
423 Elf32_Word p_flags; /* flags */
424 Elf32_Word p_align; /* memory alignment */
425} Elf32_Phdr;
426
427/* Segment types - p_type */
428#define PT_NULL 0 /* unused */
429#define PT_LOAD 1 /* loadable segment */
430#define PT_DYNAMIC 2 /* dynamic linking section */
431#define PT_INTERP 3 /* the RTLD */
432#define PT_NOTE 4 /* auxiliary information */
433#define PT_SHLIB 5 /* reserved - purpose undefined */
434#define PT_PHDR 6 /* program header */
435#define PT_TLS 7 /* Thread local storage template */
436#define PT_NUM 8 /* Number of segment types */
437#define PT_LOOS 0x60000000 /* reserved range for operating */
438#define PT_HIOS 0x6fffffff /* system specific segment types */
439#define PT_LOPROC 0x70000000 /* reserved range for processor */
440#define PT_HIPROC 0x7fffffff /* specific segment types */
441
442/* Segment flags - p_flags */
443#define PF_X 0x1 /* Executable */
444#define PF_W 0x2 /* Writable */
445#define PF_R 0x4 /* Readable */
446#define PF_MASKOS 0x0ff00000 /* OS specific segment flags */
447#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
448 /* specific segment flags */
449/* Dynamic structure */
450typedef struct
451{
452 Elf32_Sword d_tag; /* controls meaning of d_val */
453 union
454 {
455 Elf32_Word d_val; /* Multiple meanings - see d_tag */
456 Elf32_Addr d_ptr; /* program virtual address */
457 } d_un;
458} Elf32_Dyn;
459
460extern Elf32_Dyn _DYNAMIC[];
461
462/* Dynamic Array Tags - d_tag */
463#define DT_NULL 0 /* marks end of _DYNAMIC array */
464#define DT_NEEDED 1 /* string table offset of needed lib */
465#define DT_PLTRELSZ 2 /* size of relocation entries in PLT */
466#define DT_PLTGOT 3 /* address PLT/GOT */
467#define DT_HASH 4 /* address of symbol hash table */
468#define DT_STRTAB 5 /* address of string table */
469#define DT_SYMTAB 6 /* address of symbol table */
470#define DT_RELA 7 /* address of relocation table */
471#define DT_RELASZ 8 /* size of relocation table */
472#define DT_RELAENT 9 /* size of relocation entry */
473#define DT_STRSZ 10 /* size of string table */
474#define DT_SYMENT 11 /* size of symbol table entry */
475#define DT_INIT 12 /* address of initialization func. */
476#define DT_FINI 13 /* address of termination function */
477#define DT_SONAME 14 /* string table offset of shared obj */
478#define DT_RPATH 15 /* string table offset of library
479 search path */
480#define DT_SYMBOLIC 16 /* start sym search in shared obj. */
481#define DT_REL 17 /* address of rel. tbl. w addends */
482#define DT_RELSZ 18 /* size of DT_REL relocation table */
483#define DT_RELENT 19 /* size of DT_REL relocation entry */
484#define DT_PLTREL 20 /* PLT referenced relocation entry */
485#define DT_DEBUG 21 /* bugger */
486#define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */
487#define DT_JMPREL 23 /* add. of PLT's relocation entries */
488#define DT_BIND_NOW 24 /* Process relocations of object */
489#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */
490#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */
491#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */
492#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */
493#define DT_RUNPATH 29 /* Library search path */
494#define DT_FLAGS 30 /* Flags for the object being loaded */
495#define DT_ENCODING 32 /* Start of encoded range */
496#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
497#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
498#define DT_NUM 34 /* Number used. */
499#define DT_LOOS 0x60000000 /* reserved range for OS */
500#define DT_HIOS 0x6fffffff /* specific dynamic array tags */
501#define DT_LOPROC 0x70000000 /* reserved range for processor */
502#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
503
504/* Dynamic Tag Flags - d_un.d_val */
505#define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */
506#define DF_SYMBOLIC 0x02 /* Symbol resolutions starts here */
507#define DF_TEXTREL 0x04 /* Object contains text relocations */
508#define DF_BIND_NOW 0x08 /* No lazy binding for this object */
509#define DF_STATIC_TLS 0x10 /* Static thread local storage */
510
511/* Standard ELF hashing function */
512unsigned long elf_hash(const unsigned char *name);
513
514#define ELF_TARG_VER 1 /* The ver for which this code is intended */
515
516/*
517 * XXX - PowerPC defines really don't belong in here,
518 * but we'll put them in for simplicity.
519 */
520
521/* Values for Elf32/64_Ehdr.e_flags. */
522#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
523
524/* Cygnus local bits below */
525#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
526#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
wdenk8bde7f72003-06-27 21:31:46 +0000527 flag */
wdenka2cecab2002-09-30 20:45:01 +0000528
529/* PowerPC relocations defined by the ABIs */
530#define R_PPC_NONE 0
531#define R_PPC_ADDR32 1 /* 32bit absolute address */
532#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
533#define R_PPC_ADDR16 3 /* 16bit absolute address */
534#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
535#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
536#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
537#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
538#define R_PPC_ADDR14_BRTAKEN 8
539#define R_PPC_ADDR14_BRNTAKEN 9
540#define R_PPC_REL24 10 /* PC relative 26 bit */
541#define R_PPC_REL14 11 /* PC relative 16 bit */
542#define R_PPC_REL14_BRTAKEN 12
543#define R_PPC_REL14_BRNTAKEN 13
544#define R_PPC_GOT16 14
545#define R_PPC_GOT16_LO 15
546#define R_PPC_GOT16_HI 16
547#define R_PPC_GOT16_HA 17
548#define R_PPC_PLTREL24 18
549#define R_PPC_COPY 19
550#define R_PPC_GLOB_DAT 20
551#define R_PPC_JMP_SLOT 21
552#define R_PPC_RELATIVE 22
553#define R_PPC_LOCAL24PC 23
554#define R_PPC_UADDR32 24
555#define R_PPC_UADDR16 25
556#define R_PPC_REL32 26
557#define R_PPC_PLT32 27
558#define R_PPC_PLTREL32 28
559#define R_PPC_PLT16_LO 29
560#define R_PPC_PLT16_HI 30
561#define R_PPC_PLT16_HA 31
562#define R_PPC_SDAREL16 32
563#define R_PPC_SECTOFF 33
564#define R_PPC_SECTOFF_LO 34
565#define R_PPC_SECTOFF_HI 35
566#define R_PPC_SECTOFF_HA 36
567/* Keep this the last entry. */
568#define R_PPC_NUM 37
569
570/* The remaining relocs are from the Embedded ELF ABI, and are not
571 in the SVR4 ELF ABI. */
572#define R_PPC_EMB_NADDR32 101
573#define R_PPC_EMB_NADDR16 102
574#define R_PPC_EMB_NADDR16_LO 103
575#define R_PPC_EMB_NADDR16_HI 104
576#define R_PPC_EMB_NADDR16_HA 105
577#define R_PPC_EMB_SDAI16 106
578#define R_PPC_EMB_SDA2I16 107
579#define R_PPC_EMB_SDA2REL 108
580#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
581#define R_PPC_EMB_MRKREF 110
582#define R_PPC_EMB_RELSEC16 111
583#define R_PPC_EMB_RELST_LO 112
584#define R_PPC_EMB_RELST_HI 113
585#define R_PPC_EMB_RELST_HA 114
586#define R_PPC_EMB_BIT_FLD 115
587#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
588
589/* Diab tool relocations. */
590#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
591#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
592#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
593#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
594#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
595#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
596
597/* This is a phony reloc to handle any old fashioned TOC16 references
598 that may still be in object files. */
599#define R_PPC_TOC16 255
600
601#endif /* _ELF_H */