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1.1 root 1: // NetBSD の elf.h -> sys/exec_elf.h をベースに書き換えたもの
2: /* $NetBSD: exec_elf.h,v 1.161 2019/06/07 23:35:52 christos Exp $ */
1.1.1.2 ! root 3: /* $OpenBSD: exec_elf.h,v 1.87 2019/12/01 13:10:51 jsg Exp $ */
1.1 root 4:
5: /*-
6: * Copyright (c) 1994 The NetBSD Foundation, Inc.
7: * All rights reserved.
8: *
9: * This code is derived from software contributed to The NetBSD Foundation
10: * by Christos Zoulas.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31: * POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: #ifndef _SYS_EXEC_ELF_H_
35: #define _SYS_EXEC_ELF_H_
36:
37: /*
38: * The current ELF ABI specification is available at:
39: * http://www.sco.com/developers/gabi/
40: *
41: * Current header definitions are in:
42: * http://www.sco.com/developers/gabi/latest/ch4.eheader.html
43: */
44:
45: #if defined(_KERNEL) || defined(_STANDALONE)
46: #include <sys/types.h>
47: #else
48: #include <inttypes.h>
49: #include <stddef.h>
50: #endif /* _KERNEL || _STANDALONE */
51:
52: typedef uint8_t Elf_Byte;
53:
54: typedef uint32_t Elf32_Addr;
55: #define ELF32_FSZ_ADDR 4
56: typedef uint32_t Elf32_Off;
57: typedef int32_t Elf32_SOff;
58: #define ELF32_FSZ_OFF 4
59: typedef int32_t Elf32_Sword;
60: #define ELF32_FSZ_SWORD 4
61: typedef uint32_t Elf32_Word;
62: #define ELF32_FSZ_WORD 4
63: typedef uint16_t Elf32_Half;
64: #define ELF32_FSZ_HALF 2
65: typedef uint64_t Elf32_Lword;
66: #define ELF32_FSZ_LWORD 8
67:
68: typedef uint64_t Elf64_Addr;
69: #define ELF64_FSZ_ADDR 8
70: typedef uint64_t Elf64_Off;
71: typedef int64_t Elf64_SOff;
72: #define ELF64_FSZ_OFF 8
73:
74: typedef int32_t Elf64_Sword;
75: #define ELF64_FSZ_SWORD 4
76: typedef uint32_t Elf64_Word;
77: #define ELF64_FSZ_WORD 4
78:
79: typedef int64_t Elf64_Sxword;
80: #define ELF64_FSZ_SXWORD 8
81: typedef uint64_t Elf64_Xword;
82: #define ELF64_FSZ_XWORD 8
83: typedef uint64_t Elf64_Lword;
84: #define ELF64_FSZ_LWORD 8
85: typedef uint16_t Elf64_Half;
86: #define ELF64_FSZ_HALF 2
87:
88: /*
89: * ELF Header
90: */
91: #define ELF_NIDENT 16
92:
93: typedef struct {
94: unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
95: Elf32_Half e_type; /* file type */
96: Elf32_Half e_machine; /* machine type */
97: Elf32_Word e_version; /* version number */
98: Elf32_Addr e_entry; /* entry point */
99: Elf32_Off e_phoff; /* Program hdr offset */
100: Elf32_Off e_shoff; /* Section hdr offset */
101: Elf32_Word e_flags; /* Processor flags */
102: Elf32_Half e_ehsize; /* sizeof ehdr */
103: Elf32_Half e_phentsize; /* Program header entry size */
104: Elf32_Half e_phnum; /* Number of program headers */
105: Elf32_Half e_shentsize; /* Section header entry size */
106: Elf32_Half e_shnum; /* Number of section headers */
107: Elf32_Half e_shstrndx; /* String table index */
108: } Elf32_Ehdr;
109:
110: typedef struct {
111: unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
112: Elf64_Half e_type; /* file type */
113: Elf64_Half e_machine; /* machine type */
114: Elf64_Word e_version; /* version number */
115: Elf64_Addr e_entry; /* entry point */
116: Elf64_Off e_phoff; /* Program hdr offset */
117: Elf64_Off e_shoff; /* Section hdr offset */
118: Elf64_Word e_flags; /* Processor flags */
119: Elf64_Half e_ehsize; /* sizeof ehdr */
120: Elf64_Half e_phentsize; /* Program header entry size */
121: Elf64_Half e_phnum; /* Number of program headers */
122: Elf64_Half e_shentsize; /* Section header entry size */
123: Elf64_Half e_shnum; /* Number of section headers */
124: Elf64_Half e_shstrndx; /* String table index */
125: } Elf64_Ehdr;
126:
127: /* e_ident offsets */
128: #define EI_MAG0 0 /* '\177' */
129: #define EI_MAG1 1 /* 'E' */
130: #define EI_MAG2 2 /* 'L' */
131: #define EI_MAG3 3 /* 'F' */
132: #define EI_CLASS 4 /* File class */
133: #define EI_DATA 5 /* Data encoding */
134: #define EI_VERSION 6 /* File version */
135: #define EI_OSABI 7 /* Operating system/ABI identification */
136: #define EI_ABIVERSION 8 /* ABI version */
137: #define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/
138: #define EI_NIDENT 16 /* First non-ident header byte */
139:
140: /* e_ident[EI_MAG0,EI_MAG3] */
141: #define ELFMAG0 0x7f
142: #define ELFMAG1 'E'
143: #define ELFMAG2 'L'
144: #define ELFMAG3 'F'
145: #define ELFMAG "\177ELF"
146: #define SELFMAG 4
147:
148: /* e_ident[EI_CLASS] */
149: #define ELFCLASSNONE 0 /* Invalid class */
150: #define ELFCLASS32 1 /* 32-bit objects */
151: #define ELFCLASS64 2 /* 64-bit objects */
152: #define ELFCLASSNUM 3
153:
154: /* e_ident[EI_DATA] */
155: #define ELFDATANONE 0 /* Invalid data encoding */
156: #define ELFDATA2LSB 1 /* 2's complement values, LSB first */
157: #define ELFDATA2MSB 2 /* 2's complement values, MSB first */
158:
159: /* e_ident[EI_VERSION] */
160: #define EV_NONE 0 /* Invalid version */
161: #define EV_CURRENT 1 /* Current version */
162: #define EV_NUM 2
163:
164: /* e_ident[EI_OSABI] */
165: #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
166: #define ELFOSABI_HPUX 1 /* HP-UX operating system */
167: #define ELFOSABI_NETBSD 2 /* NetBSD */
168: #define ELFOSABI_LINUX 3 /* GNU/Linux */
169: #define ELFOSABI_HURD 4 /* GNU/Hurd */
170: #define ELFOSABI_86OPEN 5 /* 86Open */
171: #define ELFOSABI_SOLARIS 6 /* Solaris */
172: #define ELFOSABI_MONTEREY 7 /* Monterey */
173: #define ELFOSABI_IRIX 8 /* IRIX */
174: #define ELFOSABI_FREEBSD 9 /* FreeBSD */
175: #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
176: #define ELFOSABI_MODESTO 11 /* Novell Modesto */
177: #define ELFOSABI_OPENBSD 12 /* OpenBSD */
178: #define ELFOSABI_OPENVMS 13 /* OpenVMS */
179: #define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */
180: #define ELFOSABI_AROS 15 /* Amiga Research OS */
181: /* Unofficial OSABIs follow */
182: #define ELFOSABI_ARM 97 /* ARM */
183: #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
184:
185: #define ELFOSABI_NONE ELFOSABI_SYSV
186: #define ELFOSABI_AIX ELFOSABI_MONTEREY
187:
188: /* e_type */
189: #define ET_NONE 0 /* No file type */
190: #define ET_REL 1 /* Relocatable file */
191: #define ET_EXEC 2 /* Executable file */
192: #define ET_DYN 3 /* Shared object file */
193: #define ET_CORE 4 /* Core file */
194: #define ET_NUM 5
195:
196: #define ET_LOOS 0xfe00 /* Operating system specific range */
197: #define ET_HIOS 0xfeff
198: #define ET_LOPROC 0xff00 /* Processor-specific range */
199: #define ET_HIPROC 0xffff
200:
201: /* e_machine */
202: #define EM_NONE 0 /* No machine */
203: #define EM_M32 1 /* AT&T WE 32100 */
204: #define EM_SPARC 2 /* SPARC */
205: #define EM_386 3 /* Intel 80386 */
206: #define EM_68K 4 /* Motorola 68000 */
207: #define EM_88K 5 /* Motorola 88000 */
208: #define EM_486 6 /* Intel 80486 [old] */
209: #define EM_IAMCU 6 /* Intel MCU. */
210: #define EM_860 7 /* Intel 80860 */
211: #define EM_MIPS 8 /* MIPS I Architecture */
212: #define EM_S370 9 /* Amdahl UTS on System/370 */
213: #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
214: /* 11-14 - Reserved */
215: #define EM_RS6000 11 /* IBM RS/6000 XXX reserved */
216: #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
217: #define EM_NCUBE 16 /* NCube XXX reserved */
218: #define EM_VPP500 17 /* Fujitsu VPP500 */
219: #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
220: #define EM_960 19 /* Intel 80960 */
221: #define EM_PPC 20 /* PowerPC */
222: #define EM_PPC64 21 /* 64-bit PowerPC */
223: /* 22-35 - Reserved */
224: #define EM_S390 22 /* System/390 XXX reserved */
225: #define EM_V800 36 /* NEC V800 */
226: #define EM_FR20 37 /* Fujitsu FR20 */
227: #define EM_RH32 38 /* TRW RH-32 */
228: #define EM_RCE 39 /* Motorola RCE */
229: #define EM_ARM 40 /* Advanced RISC Machines ARM */
230: #define EM_ALPHA 41 /* DIGITAL Alpha */
231: #define EM_SH 42 /* Hitachi Super-H */
232: #define EM_SPARCV9 43 /* SPARC Version 9 */
233: #define EM_TRICORE 44 /* Siemens Tricore */
234: #define EM_ARC 45 /* Argonaut RISC Core */
235: #define EM_H8_300 46 /* Hitachi H8/300 */
236: #define EM_H8_300H 47 /* Hitachi H8/300H */
237: #define EM_H8S 48 /* Hitachi H8S */
238: #define EM_H8_500 49 /* Hitachi H8/500 */
239: #define EM_IA_64 50 /* Intel Merced Processor */
240: #define EM_MIPS_X 51 /* Stanford MIPS-X */
241: #define EM_COLDFIRE 52 /* Motorola Coldfire */
242: #define EM_68HC12 53 /* Motorola MC68HC12 */
243: #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */
244: #define EM_PCP 55 /* Siemens PCP */
245: #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */
246: #define EM_NDR1 57 /* Denso NDR1 microprocessor */
247: #define EM_STARCORE 58 /* Motorola Star*Core processor */
248: #define EM_ME16 59 /* Toyota ME16 processor */
249: #define EM_ST100 60 /* STMicroelectronics ST100 processor */
250: #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded family processor */
251: #define EM_X86_64 62 /* AMD x86-64 architecture */
252: #define EM_PDSP 63 /* Sony DSP Processor */
253: #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */
254: #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */
255: #define EM_FX66 66 /* Siemens FX66 microcontroller */
256: #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */
257: #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */
258: #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */
259: #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */
260: #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */
261: #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */
262: #define EM_SVX 73 /* Silicon Graphics SVx */
263: #define EM_ST19 74 /* STMicroelectronics ST19 8-bit CPU */
264: #define EM_VAX 75 /* Digital VAX */
265: #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
266: #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded CPU */
267: #define EM_FIREPATH 78 /* Element 14 64-bit DSP processor */
268: #define EM_ZSP 79 /* LSI Logic's 16-bit DSP processor */
269: #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */
270: #define EM_HUANY 81 /* Harvard's machine-independent format */
271: #define EM_PRISM 82 /* SiTera Prism */
272: #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
273: #define EM_FR30 84 /* Fujitsu FR30 */
274: #define EM_D10V 85 /* Mitsubishi D10V */
275: #define EM_D30V 86 /* Mitsubishi D30V */
276: #define EM_V850 87 /* NEC v850 */
277: #define EM_M32R 88 /* Mitsubishi M32R */
278: #define EM_MN10300 89 /* Matsushita MN10300 */
279: #define EM_MN10200 90 /* Matsushita MN10200 */
280: #define EM_PJ 91 /* picoJava */
281: #define EM_OR1K 92 /* OpenRISC 32-bit embedded processor */
282: #define EM_OPENRISC EM_OR1K
283: #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
284: #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
285: #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */
286: #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor */
287: #define EM_NS32K 97 /* National Semiconductor 32000 series */
288: #define EM_TPC 98 /* Tenor Network TPC processor */
289: #define EM_SNP1K 99 /* Trebia SNP 1000 processor */
290: #define EM_ST200 100 /* STMicroelectronics ST200 microcontroller */
291: #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */
292: #define EM_MAX 102 /* MAX processor */
293: #define EM_CR 103 /* National Semiconductor CompactRISC micorprocessor */
294: #define EM_F2MC16 104 /* Fujitsu F2MC16 */
295: #define EM_MSP430 105 /* Texas Instruments MSP430 */
296: #define EM_BLACKFIN 106 /* Analog Devices Blackfin DSP */
297: #define EM_SE_C33 107 /* Seiko Epson S1C33 family */
298: #define EM_SEP 108 /* Sharp embedded microprocessor */
299: #define EM_ARCA 109 /* Arca RISC microprocessor */
300: #define EM_UNICORE 110 /* UNICORE from PKU-Unity Ltd. and MPRC Peking University */
301: #define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */
302: #define EM_AARCH64 183 /* AArch64 64-bit ARM microprocessor */
303: #define EM_AVR32 185 /* Atmel Corporation 32-bit microprocessor family*/
304: #define EM_TILE64 187 /* Tilera TILE64 multicore architecture family */
305: #define EM_TILEPRO 188 /* Tilera TILEPro multicore architecture family */
306: #define EM_MICROBLAZE 189 /* Xilinx MicroBlaze 32-bit RISC soft processor core */
307: #define EM_TILEGX 192 /* Tilera TILE-GX multicore architecture family */
308: #define EM_Z80 220 /* Zilog Z80 */
309: #define EM_RISCV 243 /* RISC-V */
310:
311: /* Unofficial machine types follow */
312: #define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */
313: #define EM_NUM 36903
314:
315: /*
316: * Program Header
317: */
318: typedef struct {
319: Elf32_Word p_type; /* entry type */
320: Elf32_Off p_offset; /* offset */
321: Elf32_Addr p_vaddr; /* virtual address */
322: Elf32_Addr p_paddr; /* physical address */
323: Elf32_Word p_filesz; /* file size */
324: Elf32_Word p_memsz; /* memory size */
325: Elf32_Word p_flags; /* flags */
326: Elf32_Word p_align; /* memory & file alignment */
327: } Elf32_Phdr;
328:
329: typedef struct {
330: Elf64_Word p_type; /* entry type */
331: Elf64_Word p_flags; /* flags */
332: Elf64_Off p_offset; /* offset */
333: Elf64_Addr p_vaddr; /* virtual address */
334: Elf64_Addr p_paddr; /* physical address */
335: Elf64_Xword p_filesz; /* file size */
336: Elf64_Xword p_memsz; /* memory size */
337: Elf64_Xword p_align; /* memory & file alignment */
338: } Elf64_Phdr;
339:
340: /* p_type */
341: #define PT_NULL 0 /* Program header table entry unused */
342: #define PT_LOAD 1 /* Loadable program segment */
343: #define PT_DYNAMIC 2 /* Dynamic linking information */
344: #define PT_INTERP 3 /* Program interpreter */
345: #define PT_NOTE 4 /* Auxiliary information */
346: #define PT_SHLIB 5 /* Reserved, unspecified semantics */
347: #define PT_PHDR 6 /* Entry for header table itself */
348: #define PT_TLS 7 /* TLS initialisation image */
349: #define PT_NUM 8
350:
351: #define PT_LOOS 0x60000000 /* OS-specific range */
352:
353: /* GNU-specific */
354: #define PT_GNU_EH_FRAME 0x6474e550 /* EH frame segment */
355: #define PT_GNU_STACK 0x6474e551 /* Indicate executable stack */
356: #define PT_GNU_RELRO 0x6474e552 /* Make read-only after relocation */
357:
358: #define PT_HIOS 0x6fffffff
359: #define PT_LOPROC 0x70000000 /* Processor-specific range */
360: #define PT_HIPROC 0x7fffffff
361:
362: #define PT_MIPS_REGINFO 0x70000000
363: #define PT_MIPS_ABIFLAGS 0x70000003
364:
1.1.1.2 ! root 365: /* From OpenBSD/src/sys/sys/exec_elf.h */
! 366: #define PT_OPENBSD_RANDOMIZE 0x65a3dbe6 /* fill with random data */
! 367: #define PT_OPENBSD_WXNEEDED 0x65a3dbe7 /* program performs W^X violations */
! 368: #define PT_OPENBSD_BOOTDATA 0x65a41be6 /* section for boot arguments */
! 369:
! 370:
1.1 root 371: /* p_flags */
372: #define PF_R 0x4 /* Segment is readable */
373: #define PF_W 0x2 /* Segment is writable */
374: #define PF_X 0x1 /* Segment is executable */
375:
376: #define PF_MASKOS 0x0ff00000 /* Operating system specific values */
377: #define PF_MASKPROC 0xf0000000 /* Processor-specific values */
378:
379: /* Extended program header index. */
380: #define PN_XNUM 0xffff
381:
382: /*
383: * Section Headers
384: */
385: typedef struct {
386: Elf32_Word sh_name; /* section name (.shstrtab index) */
387: Elf32_Word sh_type; /* section type */
388: Elf32_Word sh_flags; /* section flags */
389: Elf32_Addr sh_addr; /* virtual address */
390: Elf32_Off sh_offset; /* file offset */
391: Elf32_Word sh_size; /* section size */
392: Elf32_Word sh_link; /* link to another */
393: Elf32_Word sh_info; /* misc info */
394: Elf32_Word sh_addralign; /* memory alignment */
395: Elf32_Word sh_entsize; /* table entry size */
396: } Elf32_Shdr;
397:
398: typedef struct {
399: Elf64_Word sh_name; /* section name (.shstrtab index) */
400: Elf64_Word sh_type; /* section type */
401: Elf64_Xword sh_flags; /* section flags */
402: Elf64_Addr sh_addr; /* virtual address */
403: Elf64_Off sh_offset; /* file offset */
404: Elf64_Xword sh_size; /* section size */
405: Elf64_Word sh_link; /* link to another */
406: Elf64_Word sh_info; /* misc info */
407: Elf64_Xword sh_addralign; /* memory alignment */
408: Elf64_Xword sh_entsize; /* table entry size */
409: } Elf64_Shdr;
410:
411: /* sh_type */
412: #define SHT_NULL 0 /* Section header table entry unused */
413: #define SHT_PROGBITS 1 /* Program information */
414: #define SHT_SYMTAB 2 /* Symbol table */
415: #define SHT_STRTAB 3 /* String table */
416: #define SHT_RELA 4 /* Relocation information w/ addend */
417: #define SHT_HASH 5 /* Symbol hash table */
418: #define SHT_DYNAMIC 6 /* Dynamic linking information */
419: #define SHT_NOTE 7 /* Auxiliary information */
420: #define SHT_NOBITS 8 /* No space allocated in file image */
421: #define SHT_REL 9 /* Relocation information w/o addend */
422: #define SHT_SHLIB 10 /* Reserved, unspecified semantics */
423: #define SHT_DYNSYM 11 /* Symbol table for dynamic linker */
424: #define SHT_INIT_ARRAY 14 /* Initialization function pointers */
425: #define SHT_FINI_ARRAY 15 /* Termination function pointers */
426: #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs */
427: #define SHT_GROUP 17 /* Section group */
428: #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX) */
429: #define SHT_NUM 19
430:
431: #define SHT_LOOS 0x60000000 /* Operating system specific range */
432: #define SHT_GNU_INCREMENTAL_INPUTS 0x6fff4700 /* GNU incremental build data */
433: #define SHT_LOSUNW 0x6ffffff4
434: #define SHT_SUNW_dof 0x6ffffff4
435: #define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* GNU object attributes */
436: #define SHT_SUNW_cap 0x6ffffff5
437: #define SHT_SUNW_SIGNATURE 0x6ffffff6
438: #define SHT_GNU_HASH 0x6ffffff6 /* GNU style symbol hash table */
439: #define SHT_GNU_LIBLIST 0x6ffffff7 /* GNU list of prelink dependencies */
440: #define SHT_SUNW_move 0x6ffffffa
441: #define SHT_SUNW_COMDAT 0x6ffffffb
442: #define SHT_SUNW_syminfo 0x6ffffffc
443: #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */
444: #define SHT_GNU_verdef SHT_SUNW_verdef
445: #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */
446: #define SHT_GNU_verneed SHT_SUNW_verneed
447: #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */
448: #define SHT_GNU_versym SHT_SUNW_versym
449: #define SHT_HISUNW 0x6fffffff
450: #define SHT_HIOS 0x6fffffff
451: #define SHT_LOPROC 0x70000000 /* Processor-specific range */
452: #define SHT_AMD64_UNWIND 0x70000001 /* unwind information */
453: #define SHT_ARM_EXIDX 0x70000001 /* exception index table */
454: #define SHT_ARM_PREEMPTMAP 0x70000002 /* BPABI DLL dynamic linking
455: * pre-emption map */
456: #define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility
457: * attributes */
458: #define SHT_ARM_DEBUGOVERLAY 0x70000004 /* See DBGOVL for details */
459: #define SHT_ARM_OVERLAYSECTION 0x70000005
460: #define SHT_MIPS_REGINFO 0x70000006
461: #define SHT_MIPS_OPTIONS 0x7000000d
462: #define SHT_MIPS_DWARF 0x7000001e /* MIPS gcc uses MIPS_DWARF */
463: #define SHT_HIPROC 0x7fffffff
464: #define SHT_LOUSER 0x80000000 /* Application-specific range */
465: #define SHT_HIUSER 0xffffffff
466:
467: /* sh_flags */
468: #define SHF_WRITE 0x00000001 /* Contains writable data */
469: #define SHF_ALLOC 0x00000002 /* Occupies memory */
470: #define SHF_EXECINSTR 0x00000004 /* Contains executable insns */
471: #define SHF_MERGE 0x00000010 /* Might be merged */
472: #define SHF_STRINGS 0x00000020 /* Contains nul terminated strings */
473: #define SHF_INFO_LINK 0x00000040 /* "sh_info" contains SHT index */
474: #define SHF_LINK_ORDER 0x00000080 /* Preserve order after combining */
475: #define SHF_OS_NONCONFORMING 0x00000100 /* OS specific handling required */
476: #define SHF_GROUP 0x00000200 /* Is member of a group */
477: #define SHF_TLS 0x00000400 /* Holds thread-local data */
478: #define SHF_MASKOS 0x0ff00000 /* Operating system specific values */
479: #define SHF_MASKPROC 0xf0000000 /* Processor-specific values */
480: #define SHF_ORDERED 0x40000000 /* Ordering requirement (Solaris) */
481: #define SHF_EXCLUDE 0x80000000 /* Excluded unless unles ref/alloc
482: (Solaris).*/
483: /*
484: * Symbol Table
485: */
486: typedef struct {
487: Elf32_Word st_name; /* Symbol name (.strtab index) */
488: Elf32_Word st_value; /* value of symbol */
489: Elf32_Word st_size; /* size of symbol */
490: Elf_Byte st_info; /* type / binding attrs */
491: Elf_Byte st_other; /* unused */
492: Elf32_Half st_shndx; /* section index of symbol */
493: } Elf32_Sym;
494:
495: typedef struct {
496: Elf64_Word st_name; /* Symbol name (.strtab index) */
497: Elf_Byte st_info; /* type / binding attrs */
498: Elf_Byte st_other; /* unused */
499: Elf64_Half st_shndx; /* section index of symbol */
500: Elf64_Addr st_value; /* value of symbol */
501: Elf64_Xword st_size; /* size of symbol */
502: } Elf64_Sym;
503:
504: /* Symbol Table index of the undefined symbol */
505: #define ELF_SYM_UNDEFINED 0
506:
507: #define STN_UNDEF 0 /* undefined index */
508:
509: /* st_info: Symbol Bindings */
510: #define STB_LOCAL 0 /* local symbol */
511: #define STB_GLOBAL 1 /* global symbol */
512: #define STB_WEAK 2 /* weakly defined global symbol */
513: #define STB_NUM 3
514:
515: #define STB_LOOS 10 /* Operating system specific range */
516: #define STB_HIOS 12
517: #define STB_LOPROC 13 /* Processor-specific range */
518: #define STB_HIPROC 15
519:
520: /* st_info: Symbol Types */
521: #define STT_NOTYPE 0 /* Type not specified */
522: #define STT_OBJECT 1 /* Associated with a data object */
523: #define STT_FUNC 2 /* Associated with a function */
524: #define STT_SECTION 3 /* Associated with a section */
525: #define STT_FILE 4 /* Associated with a file name */
526: #define STT_COMMON 5 /* Uninitialised common block */
527: #define STT_TLS 6 /* Thread local data object */
528: #define STT_NUM 7
529:
530: #define STT_LOOS 10 /* Operating system specific range */
531: #define STT_GNU_IFUNC 10 /* GNU extension: indirect function */
532: #define STT_HIOS 12
533: #define STT_LOPROC 13 /* Processor-specific range */
534: #define STT_HIPROC 15
535:
536: /* st_other: Visibility Types */
537: #define STV_DEFAULT 0 /* use binding type */
538: #define STV_INTERNAL 1 /* not referenced from outside */
539: #define STV_HIDDEN 2 /* not visible, may be used via ptr */
540: #define STV_PROTECTED 3 /* visible, not preemptible */
541: #define STV_EXPORTED 4
542: #define STV_SINGLETON 5
543: #define STV_ELIMINATE 6
544:
545: /* st_info/st_other utility macros */
546: #define ELF_ST_BIND(info) ((uint32_t)(info) >> 4)
547: #define ELF_ST_TYPE(info) ((uint32_t)(info) & 0xf)
548: #define ELF_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | \
549: ((type) & 0xf)))
550: #define ELF_ST_VISIBILITY(other) ((uint32_t)(other) & 3)
551:
552: /*
553: * Special section indexes
554: */
555: #define SHN_UNDEF 0 /* Undefined section */
556:
557: #define SHN_LORESERVE 0xff00 /* Reserved range */
558: #define SHN_ABS 0xfff1 /* Absolute symbols */
559: #define SHN_COMMON 0xfff2 /* Common symbols */
560: #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere */
561: #define SHN_HIRESERVE 0xffff
562:
563: #define SHN_LOPROC 0xff00 /* Processor-specific range */
564: #define SHN_HIPROC 0xff1f
565: #define SHN_LOOS 0xff20 /* Operating system specific range */
566: #define SHN_HIOS 0xff3f
567:
568: #define SHN_MIPS_ACOMMON 0xff00
569: #define SHN_MIPS_TEXT 0xff01
570: #define SHN_MIPS_DATA 0xff02
571: #define SHN_MIPS_SCOMMON 0xff03
572:
573: /*
574: * Relocation Entries
575: */
576: typedef struct {
577: Elf32_Word r_offset; /* where to do it */
578: Elf32_Word r_info; /* index & type of relocation */
579: } Elf32_Rel;
580:
581: typedef struct {
582: Elf32_Word r_offset; /* where to do it */
583: Elf32_Word r_info; /* index & type of relocation */
584: Elf32_Sword r_addend; /* adjustment value */
585: } Elf32_Rela;
586:
587: /* r_info utility macros */
588: #define ELF32_R_SYM(info) ((info) >> 8)
589: #define ELF32_R_TYPE(info) ((info) & 0xff)
590: #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
591:
592: typedef struct {
593: Elf64_Addr r_offset; /* where to do it */
594: Elf64_Xword r_info; /* index & type of relocation */
595: } Elf64_Rel;
596:
597: typedef struct {
598: Elf64_Addr r_offset; /* where to do it */
599: Elf64_Xword r_info; /* index & type of relocation */
600: Elf64_Sxword r_addend; /* adjustment value */
601: } Elf64_Rela;
602:
603: /* r_info utility macros */
604: #define ELF64_R_SYM(info) ((info) >> 32)
605: #define ELF64_R_TYPE(info) ((info) & 0xffffffff)
606: #define ELF64_R_INFO(sym,type) (((sym) << 32) + (type))
607:
608: /*
609: * Move entries
610: */
611: typedef struct {
612: Elf32_Lword m_value; /* symbol value */
613: Elf32_Word m_info; /* size + index */
614: Elf32_Word m_poffset; /* symbol offset */
615: Elf32_Half m_repeat; /* repeat count */
616: Elf32_Half m_stride; /* stride info */
617: } Elf32_Move;
618:
619: #define ELF32_M_SYM(info) ((info) >> 8)
620: #define ELF32_M_SIZE(info) ((info) & 0xff)
621: #define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size))
622:
623: typedef struct {
624: Elf64_Lword m_value; /* symbol value */
625: Elf64_Xword m_info; /* size + index */
626: Elf64_Xword m_poffset; /* symbol offset */
627: Elf64_Word m_repeat; /* repeat count */
628: Elf64_Word m_stride; /* stride info */
629: } Elf64_Move;
630:
631: #define ELF64_M_SYM(info) ((info) >> 8)
632: #define ELF64_M_SIZE(info) ((info) & 0xff)
633: #define ELF64_M_INFO(sym, size) (((sym) << 8) + (unsigned char)(size))
634:
635: /*
636: * Hardware/software capabilities entry
637: */
638: typedef struct {
639: Elf32_Word c_tag; /* entry tag value */
640: union {
641: Elf32_Addr c_ptr;
642: Elf32_Word c_val;
643: } c_un;
644: } Elf32_Cap;
645:
646: typedef struct {
647: Elf64_Xword c_tag; /* entry tag value */
648: union {
649: Elf64_Addr c_ptr;
650: Elf64_Xword c_val;
651: } c_un;
652: } Elf64_Cap;
653:
654: /*
655: * Dynamic Section structure array
656: */
657: typedef struct {
658: Elf32_Word d_tag; /* entry tag value */
659: union {
660: Elf32_Addr d_ptr;
661: Elf32_Word d_val;
662: } d_un;
663: } Elf32_Dyn;
664:
665: typedef struct {
666: Elf64_Xword d_tag; /* entry tag value */
667: union {
668: Elf64_Addr d_ptr;
669: Elf64_Xword d_val;
670: } d_un;
671: } Elf64_Dyn;
672:
673: /* d_tag */
674: #define DT_NULL 0 /* Marks end of dynamic array */
675: #define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */
676: #define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */
677: #define DT_PLTGOT 3 /* Address of PLT and/or GOT */
678: #define DT_HASH 4 /* Address of symbol hash table */
679: #define DT_STRTAB 5 /* Address of string table */
680: #define DT_SYMTAB 6 /* Address of symbol table */
681: #define DT_RELA 7 /* Address of Rela relocation table */
682: #define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */
683: #define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */
684: #define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */
685: #define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */
686: #define DT_INIT 12 /* Address of initialization function */
687: #define DT_FINI 13 /* Address of termination function */
688: #define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */
689: #define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */
690: #define DT_SYMBOLIC 16 /* Start symbol search within local object */
691: #define DT_REL 17 /* Address of Rel relocation table */
692: #define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */
693: #define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */
694: #define DT_PLTREL 20 /* Type of PLT relocation entries */
695: #define DT_DEBUG 21 /* Used for debugging; unspecified */
696: #define DT_TEXTREL 22 /* Relocations might modify non-writable seg */
697: #define DT_JMPREL 23 /* Address of relocations associated with PLT */
698: #define DT_BIND_NOW 24 /* Process all relocations at load-time */
699: #define DT_INIT_ARRAY 25 /* Address of initialization function array */
700: #define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */
701: #define DT_INIT_ARRAYSZ 27 /* Address of termination function array */
702: #define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/
703: #define DT_RUNPATH 29 /* overrides DT_RPATH */
704: #define DT_FLAGS 30 /* Encodes ORIGIN, SYMBOLIC, TEXTREL, BIND_NOW, STATIC_TLS */
705: #define DT_ENCODING 31 /* ??? */
706: #define DT_PREINIT_ARRAY 32 /* Address of pre-init function array */
707: #define DT_PREINIT_ARRAYSZ 33 /* Size, in bytes, of DT_PREINIT_ARRAY array */
708: #define DT_NUM 34
709:
710: #define DT_LOOS 0x60000000 /* Operating system specific range */
711: #define DT_VERSYM 0x6ffffff0 /* Symbol versions */
712: #define DT_FLAGS_1 0x6ffffffb /* ELF dynamic flags */
713: #define DT_VERDEF 0x6ffffffc /* Versions defined by file */
714: #define DT_VERDEFNUM 0x6ffffffd /* Number of versions defined by file */
715: #define DT_VERNEED 0x6ffffffe /* Versions needed by file */
716: #define DT_VERNEEDNUM 0x6fffffff /* Number of versions needed by file */
717: #define DT_HIOS 0x6fffffff
718: #define DT_LOPROC 0x70000000 /* Processor-specific range */
719: #define DT_HIPROC 0x7fffffff
720:
721: /* Flag values for DT_FLAGS */
722: #define DF_ORIGIN 0x00000001 /* uses $ORIGIN */
723: #define DF_SYMBOLIC 0x00000002 /* */
724: #define DF_TEXTREL 0x00000004 /* */
725: #define DF_BIND_NOW 0x00000008 /* */
726: #define DF_STATIC_TLS 0x00000010 /* */
727:
728: /* Flag values for DT_FLAGS_1 */
729: #define DF_1_NOW 0x00000001 /* Same as DF_BIND_NOW */
730: #define DF_1_GLOBAL 0x00000002 /* Unused */
731: #define DF_1_GROUP 0x00000004 /* Is member of group */
732: #define DF_1_NODELETE 0x00000008 /* Cannot be deleted from process */
733: #define DF_1_LOADFLTR 0x00000010 /* Immediate loading of filters */
734: #define DF_1_INITFIRST 0x00000020 /* init/fini takes priority */
735: #define DF_1_NOOPEN 0x00000040 /* Do not allow loading on dlopen() */
736: #define DF_1_ORIGIN 0x00000080 /* Require $ORIGIN processing */
737: #define DF_1_DIRECT 0x00000100 /* Enable direct bindings */
738: #define DF_1_INTERPOSE 0x00000400 /* Is an interposer */
739: #define DF_1_NODEFLIB 0x00000800 /* Ignore default library search path */
740: #define DF_1_NODUMP 0x00001000 /* Cannot be dumped with dldump(3C) */
741: #define DF_1_CONFALT 0x00002000 /* Configuration alternative */
742: #define DF_1_ENDFILTEE 0x00004000 /* Filtee ends filter's search */
743: #define DF_1_DISPRELDNE 0x00008000 /* Did displacement relocation */
744: #define DF_1_DISPRELPND 0x00010000 /* Pending displacement relocation */
745: #define DF_1_NODIRECT 0x00020000 /* Has non-direct bindings */
746: #define DF_1_IGNMULDEF 0x00040000 /* Used internally */
747: #define DF_1_NOKSYMS 0x00080000 /* Used internally */
748: #define DF_1_NOHDR 0x00100000 /* Used internally */
749: #define DF_1_EDITED 0x00200000 /* Has been modified since build */
750: #define DF_1_NORELOC 0x00400000 /* Used internally */
751: #define DF_1_SYMINTPOSE 0x00800000 /* Has individual symbol interposers */
752: #define DF_1_GLOBAUDIT 0x01000000 /* Require global auditing */
753: #define DF_1_SINGLETON 0x02000000 /* Has singleton symbols */
754: #define DF_1_STUB 0x04000000 /* Stub */
755: #define DF_1_PIE 0x08000000 /* Position Independent Executable */
756:
757: /*
758: * Auxiliary Vectors
759: */
760: typedef struct {
761: Elf32_Word a_type; /* 32-bit id */
762: Elf32_Word a_v; /* 32-bit id */
763: } Aux32Info;
764:
765: typedef struct {
766: Elf64_Word a_type; /* 32-bit id */
767: Elf64_Xword a_v; /* 64-bit id */
768: } Aux64Info;
769:
770: /* a_type */
771: #define AT_NULL 0 /* Marks end of array */
772: #define AT_IGNORE 1 /* No meaning, a_un is undefined */
773: #define AT_EXECFD 2 /* Open file descriptor of object file */
774: #define AT_PHDR 3 /* &phdr[0] */
775: #define AT_PHENT 4 /* sizeof(phdr[0]) */
776: #define AT_PHNUM 5 /* # phdr entries */
777: #define AT_PAGESZ 6 /* PAGESIZE */
778: #define AT_BASE 7 /* Interpreter base addr */
779: #define AT_FLAGS 8 /* Processor flags */
780: #define AT_ENTRY 9 /* Entry address of executable */
781: #define AT_DCACHEBSIZE 10 /* Data cache block size */
782: #define AT_ICACHEBSIZE 11 /* Instruction cache block size */
783: #define AT_UCACHEBSIZE 12 /* Unified cache block size */
784: #define AT_STACKBASE 13 /* Base address of the main thread */
785:
786: /* Vendor specific */
787: #define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */
788:
789: #define AT_EUID 2000 /* euid (solaris compatible numbers) */
790: #define AT_RUID 2001 /* ruid (solaris compatible numbers) */
791: #define AT_EGID 2002 /* egid (solaris compatible numbers) */
792: #define AT_RGID 2003 /* rgid (solaris compatible numbers) */
793:
794: /* Solaris kernel specific */
795: #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */
796: #define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */
797: #define AT_SUN_LDNAME 2006 /* dynamic linker's name */
798: #define AT_SUN_LPGSIZE 2007 /* large pagesize */
799:
800: /* Other information */
801: #define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */
802: #define AT_SUN_HWCAP 2009 /* process hardware capabilities */
803: #define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */
804: #define AT_SUN_CPU 2011 /* CPU name */
805: /* ibcs2 emulation band aid */
806: #define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */
807: #define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */
808: /* Executable's fully resolved name */
809: #define AT_SUN_EXECNAME 2014
810:
811: /*
812: * The header for GNU-style hash sections.
813: */
814: typedef struct {
815: uint32_t gh_nbuckets; /* Number of hash buckets. */
816: uint32_t gh_symndx; /* First visible symbol in .dynsym. */
817: uint32_t gh_maskwords; /* #maskwords used in bloom filter. */
818: uint32_t gh_shift2; /* Bloom filter shift count. */
819: } Elf_GNU_Hash_Header;
820:
821: /*
822: * Note Headers
823: */
824: typedef struct {
825: Elf32_Word n_namesz;
826: Elf32_Word n_descsz;
827: Elf32_Word n_type;
828: } Elf32_Nhdr;
829:
830: typedef struct {
831: Elf64_Word n_namesz;
832: Elf64_Word n_descsz;
833: Elf64_Word n_type;
834: } Elf64_Nhdr;
835:
836: #define ELF_NOTE_GNU_NAMESZ 4
837: #define ELF_NOTE_GNU_NAME "GNU\0"
838:
839: /*
840: * GNU-specific note type: ABI tag
841: * name: GNU\0
842: * namesz: 4
843: * desc:
844: * word[0]: OS tag
845: * word[1]: major version
846: * word[2]: minor version
847: * word[3]: teeny version
848: * descsz: 16
849: */
850: /* GNU-specific note name and description sizes */
851: #define ELF_NOTE_TYPE_ABI_TAG 1
852: #define ELF_NOTE_ABI_NAME ELF_NOTE_GNU_NAME
853: #define ELF_NOTE_ABI_NAMESZ ELF_NOTE_GNU_NAMESZ
854: #define ELF_NOTE_ABI_DESCSZ 16
855: /* GNU-specific OS/version value stuff */
856: #define ELF_NOTE_ABI_OS_LINUX 0
857: #define ELF_NOTE_ABI_OS_HURD 1
858: #define ELF_NOTE_ABI_OS_SOLARIS 2
859: #define ELF_NOTE_ABI_OS_KFREEBSD 3
860: #define ELF_NOTE_ABI_OS_KNETBSD 4
861:
862: /* Old gcc style, under the ABI tag */
863: #define ELF_NOTE_OGCC_NAMESZ 8
864: #define ELF_NOTE_OGCC_NAME "01.01\0\0\0\0"
865: #define ELF_NOTE_OGCC_DESCSZ 0
866:
867: /*
868: * GNU-specific note type: Hardware capabilities
869: * name: GNU\0
870: * namesz: 4
871: * desc:
872: * word[0]: Number of entries
873: * word[1]: Bitmask of enabled entries
874: * Followed by a byte id, and a NUL terminated string per entry
875: * descsz: variable
876: */
877: #define ELF_NOTE_TYPE_GNU_HWCAP 2
878:
879: /*
880: * GNU-specific note type: Build ID generated by ld
881: * name: GNU\0
882: * desc:
883: * word[0..4] SHA1 [default]
884: * or
885: * word[0..3] md5 or uuid
886: * descsz: 16 or 20
887: */
888: #define ELF_NOTE_TYPE_GNU_BUILD_ID 3
889:
890: /* SuSE-specific note type: ABI
891: * name: SuSE\0
892: * namesz: 5
893: * desc:
894: * half[0] = MMmm
895: *
896: * M = product major version
897: * m = product minor version
898: * descsz: 2
899: */
900: #define ELF_NOTE_TYPE_SUSE_TAG 1
901: /* SuSE-specific note name and description sizes */
902: #define ELF_NOTE_SUSE_NAMESZ 5
903: #define ELF_NOTE_SUSE_DESCSZ 2
904: /* SuSE-specific note name */
905: #define ELF_NOTE_SUSE_NAME "SuSE\0"
906:
907: /* SuSE-specific note type: version
908: * name: SuSE\0\0\0\0
909: * namesz: 8
910: * desc:
911: * word[0] = VVTTMMmm
912: *
913: * V = version of following data
914: * T = product type: [box, sles, nld, whatever]
915: * M = product major version
916: * m = product minor version
917: * descsz: 8
918: */
919: #define ELF_NOTE_TYPE_SUSE_VERSION_TAG 0x45537553 /* SuSE in LE */
920: /* SuSE-specific note name and description sizes */
921: #define ELF_NOTE_SUSE_VERSION_NAMESZ 8
922: #define ELF_NOTE_SUSE_VERSION_DESCSZ 8
923: /* SuSE-specific note name */
924: #define ELF_NOTE_SUSE_VERSION_NAME "SuSE\0\0\0\0"
925:
926: /* Go-specific note type: buildid
927: * name: Go\0\0
928: * namesz: 4
929: * desc:
930: * words[10]
931: * descsz: 40
932: */
933: #define ELF_NOTE_TYPE_GO_BUILDID_TAG 4
934: #define ELF_NOTE_GO_BUILDID_NAMESZ 4
935: #define ELF_NOTE_GO_BUILDID_DESCSZ 40
936: #define ELF_NOTE_GO_BUILDID_NAME "Go\0\0"
937:
938: /* NetBSD-specific note type: NetBSD ABI version.
939: * name: NetBSD\0\0
940: * namesz: 8
941: * desc:
942: * word[0]: MMmmrrpp00
943: *
944: * M = major version
945: * m = minor version
946: * r = release ["",A-Z,Z[A-Z] but numeric]
947: * p = patchlevel
948: * descsz: 4
949: */
950: #define ELF_NOTE_TYPE_NETBSD_TAG 1
951: /* NetBSD-specific note name and description sizes */
952: #define ELF_NOTE_NETBSD_NAMESZ 7
953: #define ELF_NOTE_NETBSD_DESCSZ 4
954: /* NetBSD-specific note name */
955: #define ELF_NOTE_NETBSD_NAME "NetBSD\0\0"
956:
957: /* NetBSD-specific note type: Emulation (obsolete; last used early 2000)
958: * name: NetBSD\0\0
959: * namesz: 8
960: * desc:
961: * "netbsd\0"
962: *
963: * descsz: 8
964: */
965: #define ELF_NOTE_TYPE_NETBSD_EMUL_TAG 2
966: #define ELF_NOTE_NETBSD_EMUL_NAMESZ 7
967: #define ELF_NOTE_NETBSD_EMUL_DESCSZ 7
968: /* NetBSD-specific note name */
969: #define ELF_NOTE_NETBSD_EMUL_NAME "NetBSD\0\0"
970:
971: /*
972: * NetBSD-specific note type: PaX.
973: * There should be 1 NOTE per executable.
974: * name: PaX\0
975: * namesz: 4
976: * desc:
977: * word[0]: capability bitmask
978: * descsz: 4
979: */
980: #define ELF_NOTE_TYPE_PAX_TAG 3
981: #define ELF_NOTE_PAX_MPROTECT 0x01 /* Force enable Mprotect */
982: #define ELF_NOTE_PAX_NOMPROTECT 0x02 /* Force disable Mprotect */
983: #define ELF_NOTE_PAX_GUARD 0x04 /* Force enable Segvguard */
984: #define ELF_NOTE_PAX_NOGUARD 0x08 /* Force disable Segvguard */
985: #define ELF_NOTE_PAX_ASLR 0x10 /* Force enable ASLR */
986: #define ELF_NOTE_PAX_NOASLR 0x20 /* Force disable ASLR */
987: #define ELF_NOTE_PAX_NAMESZ 4
988: #define ELF_NOTE_PAX_NAME "PaX\0"
989: #define ELF_NOTE_PAX_DESCSZ 4
990:
991: /*
992: * NetBSD-specific core file information.
993: *
994: * NetBSD ELF core files use notes to provide information about
995: * the process's state. The note name is "NetBSD-CORE" for
996: * information that is global to the process, and "NetBSD-CORE@nn",
997: * where "nn" is the lwpid of the LWP that the information belongs
998: * to (such as register state).
999: *
1000: * We use the following note identifiers:
1001: *
1002: * ELF_NOTE_NETBSD_CORE_PROCINFO
1003: * Note is a "netbsd_elfcore_procinfo" structure.
1004: * ELF_NOTE_NETBSD_CORE_AUXV
1005: * Note is an array of AuxInfo structures.
1006: *
1007: * We also use ptrace(2) request numbers (the ones that exist in
1008: * machine-dependent space) to identify register info notes. The
1009: * info in such notes is in the same format that ptrace(2) would
1010: * export that information.
1011: *
1012: * Please try to keep the members of this structure nicely aligned,
1013: * and if you add elements, add them to the end and bump the version.
1014: */
1015:
1016: #define ELF_NOTE_NETBSD_CORE_NAME "NetBSD-CORE"
1017:
1018: #define ELF_NOTE_NETBSD_CORE_PROCINFO 1
1019: #define ELF_NOTE_NETBSD_CORE_AUXV 2
1020:
1021: #define NETBSD_ELFCORE_PROCINFO_VERSION 1
1022:
1023: struct netbsd_elfcore_procinfo {
1024: /* Version 1 fields start here. */
1025: uint32_t cpi_version; /* our version */
1026: uint32_t cpi_cpisize; /* sizeof(this struct) */
1027: uint32_t cpi_signo; /* killing signal */
1028: uint32_t cpi_sigcode; /* signal code */
1029: uint32_t cpi_sigpend[4]; /* pending signals */
1030: uint32_t cpi_sigmask[4]; /* blocked signals */
1031: uint32_t cpi_sigignore[4]; /* ignored signals */
1032: uint32_t cpi_sigcatch[4]; /* caught signals */
1033: int32_t cpi_pid; /* process ID */
1034: int32_t cpi_ppid; /* parent process ID */
1035: int32_t cpi_pgrp; /* process group ID */
1036: int32_t cpi_sid; /* session ID */
1037: uint32_t cpi_ruid; /* real user ID */
1038: uint32_t cpi_euid; /* effective user ID */
1039: uint32_t cpi_svuid; /* saved user ID */
1040: uint32_t cpi_rgid; /* real group ID */
1041: uint32_t cpi_egid; /* effective group ID */
1042: uint32_t cpi_svgid; /* saved group ID */
1043: uint32_t cpi_nlwps; /* number of LWPs */
1044: int8_t cpi_name[32]; /* copy of p->p_comm */
1045: /* Add version 2 fields below here. */
1046: int32_t cpi_siglwp; /* LWP target of killing signal */
1047: };
1048:
1049: /*
1050: * NetBSD-specific note type: MACHINE_ARCH.
1051: * There should be 1 NOTE per executable.
1052: * name: NetBSD\0
1053: * namesz: 7
1054: * desc: string
1055: * descsz: variable
1056: */
1057: #define ELF_NOTE_TYPE_MARCH_TAG 5
1058: /* NetBSD-specific note name and description sizes */
1059: #define ELF_NOTE_MARCH_NAMESZ ELF_NOTE_NETBSD_NAMESZ
1060: /* NetBSD-specific note name */
1061: #define ELF_NOTE_MARCH_NAME ELF_NOTE_NETBSD_NAME
1062:
1063: /*
1064: * NetBSD-specific note type: MCMODEL
1065: * There should be 1 NOTE per executable.
1066: * name: NetBSD\0
1067: * namesz: 7
1068: * code model: string
1069: */
1070:
1071: #define ELF_NOTE_TYPE_MCMODEL_TAG 6
1072: /* NetBSD-specific note name and description sizes */
1073: #define ELF_NOTE_MCMODEL_NAMESZ ELF_NOTE_NETBSD_NAMESZ
1074: /* NetBSD-specific note name */
1075: #define ELF_NOTE_MCMODEL_NAME ELF_NOTE_NETBSD_NAME
1076:
1077:
1078: #if !defined(ELFSIZE)
1079: # if defined(_RUMPKERNEL) || !defined(_KERNEL)
1080: # define ELFSIZE ARCH_ELFSIZE
1081: # else
1082: # define ELFSIZE KERN_ELFSIZE
1083: # endif
1084: #endif
1085:
1086: #if defined(ELFSIZE)
1087: #define CONCAT(x,y) __CONCAT(x,y)
1088: #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
1089: #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
1090: #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE))
1091: #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
1092: #define ElfW(x) CONCAT(Elf,CONCAT(ELFSIZE,CONCAT(_,x)))
1093: #endif
1094:
1095: #if defined(ELFSIZE) && (ELFSIZE == 32)
1096: #define Elf_Ehdr Elf32_Ehdr
1097: #define Elf_Phdr Elf32_Phdr
1098: #define Elf_Shdr Elf32_Shdr
1099: #define Elf_Sym Elf32_Sym
1100: #define Elf_Rel Elf32_Rel
1101: #define Elf_Rela Elf32_Rela
1102: #define Elf_Dyn Elf32_Dyn
1103: #define Elf_Word Elf32_Word
1104: #define Elf_Sword Elf32_Sword
1105: #define Elf_Half Elf32_Half
1106: #define Elf_Addr Elf32_Addr
1107: #define Elf_Off Elf32_Off
1108: #define Elf_SOff Elf32_SOff
1109: #define Elf_Nhdr Elf32_Nhdr
1110: #define Elf_Verdef Elf32_Verdef
1111: #define Elf_Verdaux Elf32_Verdaux
1112: #define Elf_Verneed Elf32_Verneed
1113: #define Elf_Vernaux Elf32_Vernaux
1114: #define Elf_Versym Elf32_Versym
1115:
1116: #define ELF_R_SYM ELF32_R_SYM
1117: #define ELF_R_TYPE ELF32_R_TYPE
1118: #define ELFCLASS ELFCLASS32
1119:
1120: #define AuxInfo Aux32Info
1121: #elif defined(ELFSIZE) && (ELFSIZE == 64)
1122: #define Elf_Ehdr Elf64_Ehdr
1123: #define Elf_Phdr Elf64_Phdr
1124: #define Elf_Shdr Elf64_Shdr
1125: #define Elf_Sym Elf64_Sym
1126: #define Elf_Rel Elf64_Rel
1127: #define Elf_Rela Elf64_Rela
1128: #define Elf_Dyn Elf64_Dyn
1129: #define Elf_Word Elf64_Word
1130: #define Elf_Sword Elf64_Sword
1131: #define Elf_Half Elf64_Half
1132: #define Elf_Addr Elf64_Addr
1133: #define Elf_Off Elf64_Off
1134: #define Elf_SOff Elf64_SOff
1135: #define Elf_Nhdr Elf64_Nhdr
1136: #define Elf_Verdef Elf64_Verdef
1137: #define Elf_Verdaux Elf64_Verdaux
1138: #define Elf_Verneed Elf64_Verneed
1139: #define Elf_Vernaux Elf64_Vernaux
1140: #define Elf_Versym Elf64_Versym
1141:
1142: #define ELF_R_SYM ELF64_R_SYM
1143: #define ELF_R_TYPE ELF64_R_TYPE
1144: #define ELFCLASS ELFCLASS64
1145:
1146: #define AuxInfo Aux64Info
1147: #endif
1148:
1149: #ifndef Elf_Symindx
1150: #define Elf_Symindx uint32_t
1151: #endif
1152:
1153: #define ELF32_ST_BIND(info) ELF_ST_BIND(info)
1154: #define ELF32_ST_TYPE(info) ELF_ST_TYPE(info)
1155: #define ELF32_ST_INFO(bind,type) ELF_ST_INFO(bind,type)
1156: #define ELF32_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other)
1157:
1158: #define ELF64_ST_BIND(info) ELF_ST_BIND(info)
1159: #define ELF64_ST_TYPE(info) ELF_ST_TYPE(info)
1160: #define ELF64_ST_INFO(bind,type) ELF_ST_INFO(bind,type)
1161: #define ELF64_ST_VISIBILITY(other) ELF_ST_VISIBILITY(other)
1162:
1163: typedef struct {
1164: Elf32_Half si_boundto; /* direct bindings - symbol bound to */
1165: Elf32_Half si_flags; /* per symbol flags */
1166: } Elf32_Syminfo;
1167:
1168: typedef struct {
1169: Elf64_Word si_boundto; /* direct bindings - symbol bound to */
1170: Elf64_Word si_flags; /* per symbol flags */
1171: } Elf64_Syminfo;
1172:
1173: #define SYMINFO_FLG_DIRECT 0x0001 /* symbol ref has direct association
1174: to object containing definition */
1175: #define SYMINFO_FLG_PASSTHRU 0x0002 /* ignored - see SYMINFO_FLG_FILTER */
1176: #define SYMINFO_FLG_COPY 0x0004 /* symbol is a copy-reloc */
1177: #define SYMINFO_FLG_LAZYLOAD 0x0008 /* object containing defn should be
1178: lazily-loaded */
1179: #define SYMINFO_FLG_DIRECTBIND 0x0010 /* ref should be bound directly to
1180: object containing definition */
1181: #define SYMINFO_FLG_NOEXTDIRECT 0x0020 /* don't let an external reference
1182: directly bind to this symbol */
1183: #define SYMINFO_FLG_FILTER 0x0002 /* symbol ref is associated to a */
1184: #define SYMINFO_FLG_AUXILIARY 0x0040 /* standard or auxiliary filter */
1185:
1186: #define SYMINFO_BT_SELF 0xffff /* symbol bound to self */
1187: #define SYMINFO_BT_PARENT 0xfffe /* symbol bound to parent */
1188: #define SYMINFO_BT_NONE 0xfffd /* no special symbol binding */
1189: #define SYMINFO_BT_EXTERN 0xfffc /* symbol defined as external */
1190: #define SYMINFO_BT_LOWRESERVE 0xff00 /* beginning of reserved entries */
1191:
1192: #define SYMINFO_NONE 0 /* Syminfo version */
1193: #define SYMINFO_CURRENT 1
1194: #define SYMINFO_NUM 2
1195:
1196: /*
1197: * These constants are used for Elf32_Verdef struct's version number.
1198: */
1199: #define VER_DEF_NONE 0
1200: #define VER_DEF_CURRENT 1
1201:
1202: /*
1203: * These constants are used for Elf32_Verdef struct's vd_ndx.
1204: */
1205: #define VER_DEF_IDX(x) VER_NDX(x)
1206:
1207: /*
1208: * These constants are used for Elf32_Verdef struct's vd_flags.
1209: */
1210: #define VER_FLG_BASE 0x1
1211: #define VER_FLG_WEAK 0x2
1212:
1213: /*
1214: * These are used in an Elf32_Versym field.
1215: */
1216: #define VER_NDX_LOCAL 0
1217: #define VER_NDX_GLOBAL 1
1218: #define VER_NDX_GIVEN 2
1219:
1220: /*
1221: * These constants are used for Elf32_Verneed struct's version number.
1222: */
1223: #define VER_NEED_NONE 0
1224: #define VER_NEED_CURRENT 1
1225:
1226: /*
1227: * These constants are used for Elf32_Vernaux struct's vna_other.
1228: */
1229: #define VER_NEED_HIDDEN VER_NDX_HIDDEN
1230: #define VER_NEED_IDX(x) VER_NDX(x)
1231:
1232: /* index */
1233: #define VER_NDX_HIDDEN 0x8000
1234: #define VER_NDX(x) ((x) & ~VER_NDX_HIDDEN)
1235:
1236: /*
1237: * GNU Extension hidding symbol
1238: */
1239: #define VERSYM_HIDDEN 0x8000
1240: #define VERSYM_VERSION 0x7fff
1241:
1242: #define ELF_VER_CHR '@'
1243:
1244: /*
1245: * These are current size independent.
1246: */
1247:
1248: typedef struct {
1249: Elf32_Half vd_version; /* version number of structure */
1250: Elf32_Half vd_flags; /* flags (VER_FLG_*) */
1251: Elf32_Half vd_ndx; /* version index */
1252: Elf32_Half vd_cnt; /* number of verdaux entries */
1253: Elf32_Word vd_hash; /* hash of name */
1254: Elf32_Word vd_aux; /* offset to verdaux entries */
1255: Elf32_Word vd_next; /* offset to next verdef */
1256: } Elf32_Verdef;
1257: typedef Elf32_Verdef Elf64_Verdef;
1258:
1259: typedef struct {
1260: Elf32_Word vda_name; /* string table offset of name */
1261: Elf32_Word vda_next; /* offset to verdaux */
1262: } Elf32_Verdaux;
1263: typedef Elf32_Verdaux Elf64_Verdaux;
1264:
1265: typedef struct {
1266: Elf32_Half vn_version; /* version number of structure */
1267: Elf32_Half vn_cnt; /* number of vernaux entries */
1268: Elf32_Word vn_file; /* string table offset of library name*/
1269: Elf32_Word vn_aux; /* offset to vernaux entries */
1270: Elf32_Word vn_next; /* offset to next verneed */
1271: } Elf32_Verneed;
1272: typedef Elf32_Verneed Elf64_Verneed;
1273:
1274: typedef struct {
1275: Elf32_Word vna_hash; /* Hash of dependency name */
1276: Elf32_Half vna_flags; /* flags (VER_FLG_*) */
1277: Elf32_Half vna_other; /* unused */
1278: Elf32_Word vna_name; /* string table offset to version name*/
1279: Elf32_Word vna_next; /* offset to next vernaux */
1280: } Elf32_Vernaux;
1281: typedef Elf32_Vernaux Elf64_Vernaux;
1282:
1283: typedef struct {
1284: Elf32_Half vs_vers;
1285: } Elf32_Versym;
1286: typedef Elf32_Versym Elf64_Versym;
1287:
1288: #ifdef _KERNEL
1289:
1290: /*
1291: * Arbitrary limits to avoid DoS for excessive memory allocation.
1292: */
1293: #define ELF_MAXPHNUM 128
1294: #define ELF_MAXSHNUM 32768
1295: #define ELF_MAXNOTESIZE 1024
1296:
1297: #define ELF_AUX_ENTRIES 15 /* Max size of aux array passed to loader */
1298: #define ELF32_NO_ADDR (~(Elf32_Addr)0) /* Indicates addr. not yet filled in */
1299: #define ELF32_LINK_ADDR ((Elf32_Addr)-2) /* advises to use link address */
1300: #define ELF64_NO_ADDR (~(Elf64_Addr)0) /* Indicates addr. not yet filled in */
1301: #define ELF64_LINK_ADDR ((Elf64_Addr)-2) /* advises to use link address */
1302:
1303: #if defined(ELFSIZE) && (ELFSIZE == 64)
1304: #define ELF_NO_ADDR ELF64_NO_ADDR
1305: #define ELF_LINK_ADDR ELF64_LINK_ADDR
1306: #elif defined(ELFSIZE) && (ELFSIZE == 32)
1307: #define ELF_NO_ADDR ELF32_NO_ADDR
1308: #define ELF_LINK_ADDR ELF32_LINK_ADDR
1309: #endif
1310:
1311: #ifndef ELF32_EHDR_FLAGS_OK
1312: #define ELF32_EHDR_FLAGS_OK(eh) 1
1313: #endif
1314:
1315: #ifndef ELF64_EHDR_FLAGS_OK
1316: #define ELF64_EHDR_FLAGS_OK(eh) 1
1317: #endif
1318:
1319: #if defined(ELFSIZE) && (ELFSIZE == 64)
1320: #define ELF_EHDR_FLAGS_OK(eh) ELF64_EHDR_FLAGS_OK(eh)
1321: #else
1322: #define ELF_EHDR_FLAGS_OK(eh) ELF32_EHDR_FLAGS_OK(eh)
1323: #endif
1324:
1325: #if defined(ELFSIZE)
1326: struct elf_args {
1327: Elf_Addr arg_entry; /* program entry point */
1328: Elf_Addr arg_interp; /* Interpreter load address */
1329: Elf_Addr arg_phaddr; /* program header address */
1330: Elf_Addr arg_phentsize; /* Size of program header */
1331: Elf_Addr arg_phnum; /* Number of program headers */
1332: };
1333: #endif
1334:
1335: #ifdef _KERNEL_OPT
1336: #include "opt_execfmt.h"
1337: #endif
1338:
1339: struct ps_strings;
1340: struct coredump_iostate;
1341: struct note_state;
1342: struct exec_package;
1343:
1344: #ifdef EXEC_ELF32
1345: int exec_elf32_makecmds(struct lwp *, struct exec_package *);
1346: int elf32_populate_auxv(struct lwp *, struct exec_package *, char **);
1347: int elf32_copyargs(struct lwp *, struct exec_package *,
1348: struct ps_strings *, char **, void *);
1349:
1350: int coredump_elf32(struct lwp *, struct coredump_iostate *);
1351: void coredump_savenote_elf32(struct note_state *, unsigned int,
1352: const char *, void *, size_t);
1353:
1354: int elf32_check_header(Elf32_Ehdr *);
1355: #endif
1356:
1357: #ifdef EXEC_ELF64
1358: int exec_elf64_makecmds(struct lwp *, struct exec_package *);
1359: int elf64_populate_auxv(struct lwp *, struct exec_package *, char **);
1360: int elf64_copyargs(struct lwp *, struct exec_package *,
1361: struct ps_strings *, char **, void *);
1362:
1363: int coredump_elf64(struct lwp *, struct coredump_iostate *);
1364: void coredump_savenote_elf64(struct note_state *, unsigned int,
1365: const char *, void *, size_t);
1366:
1367: int elf64_check_header(Elf64_Ehdr *);
1368: #endif
1369:
1370: #endif /* _KERNEL */
1371:
1372: #endif /* !_SYS_EXEC_ELF_H_ */
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