1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef __ELFDUMP_H 28 #define __ELFDUMP_H 29 30 #include <_machelf.h> 31 #include <debug.h> 32 33 /* 34 * Local include file for elfdump. 35 */ 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /* 41 * flags: This is a bitmask that controls elfdump's operations. There 42 * are three categories of flag: 43 * 44 * SHOW - Specify categories of things in the ELF object to display. 45 * CALC - Compute something based on the contents of the ELF object. 46 * CTL - Control options specify general options that are not 47 * specific to any specific part of the ELF object, but 48 * which apply at a higher level. 49 * 50 * To simplify masking these categories, they are assigned bit ranges 51 * as follows: 52 * SHOW: Bottom 24-bits 53 * CALC: Upper 2 bits of most significant byte 54 * CTL: Lower 6 bits of most significant byte 55 */ 56 #define FLG_SHOW_DYNAMIC 0x00000001 57 #define FLG_SHOW_EHDR 0x00000002 58 #define FLG_SHOW_INTERP 0x00000004 59 #define FLG_SHOW_SHDR 0x00000008 60 #define FLG_SHOW_NOTE 0x00000010 61 #define FLG_SHOW_PHDR 0x00000020 62 #define FLG_SHOW_RELOC 0x00000040 63 #define FLG_SHOW_SYMBOLS 0x00000080 64 #define FLG_SHOW_VERSIONS 0x00000100 65 #define FLG_SHOW_HASH 0x00000200 66 #define FLG_SHOW_GOT 0x00000400 67 #define FLG_SHOW_SYMINFO 0x00000800 68 #define FLG_SHOW_MOVE 0x00001000 69 #define FLG_SHOW_GROUP 0x00002000 70 #define FLG_SHOW_CAP 0x00004000 71 #define FLG_SHOW_UNWIND 0x00008000 72 #define FLG_SHOW_SORT 0x00010000 73 74 #define FLG_CTL_LONGNAME 0x01000000 75 #define FLG_CTL_DEMANGLE 0x02000000 76 #define FLG_CTL_FAKESHDR 0x04000000 77 #define FLG_CTL_MATCH 0x08000000 78 #define FLG_CTL_OSABI 0x10000000 79 80 #define FLG_CALC_CHECKSUM 0x40000000 81 82 /* Bitmasks that isolate the parts of a flag value */ 83 #define FLG_MASK_SHOW 0x00ffffff 84 #define FLG_MASK_CTL 0x3f000000 85 #define FLG_MASK_CALC 0xc0000000 86 87 /* 88 * Mask that selects the show flags that do not require the ELF 89 * object to have a section header array. 90 */ 91 #define FLG_MASK_SHOW_NOSHDR (FLG_SHOW_EHDR | FLG_SHOW_PHDR) 92 93 /* 94 * Masks to select the flags that require the ELF object to 95 * have a section header array, within each flag type. 96 */ 97 #define FLG_MASK_SHOW_SHDR (FLG_MASK_SHOW & ~FLG_MASK_SHOW_NOSHDR) 98 #define FLG_MASK_CALC_SHDR FLG_CALC_CHECKSUM 99 100 101 /* Size of buffer used for formatting an index into textual representation */ 102 #define MAXNDXSIZE 10 103 104 typedef struct cache { 105 Elf_Scn *c_scn; 106 Shdr *c_shdr; 107 Elf_Data *c_data; 108 char *c_name; 109 int c_ndx; /* Section index */ 110 } Cache; 111 112 typedef struct got_info { 113 Word g_reltype; /* it will never happen, but */ 114 /* support mixed relocations */ 115 void *g_rel; 116 const char *g_symname; 117 } Got_info; 118 119 extern const Cache cache_init; 120 121 extern void failure(const char *, const char *); 122 extern const char *demangle(const char *, uint_t); 123 124 125 /* 126 * Flags for the match() function: 127 * MATCH_F_STRICT 128 * A strict match requires an explicit match to 129 * a user specified match (-I, -N, -T) option. A 130 * non-strict match also succeeds if the match 131 * list is empty. 132 * 133 * MATCH_F_PHDR 134 * The match item is a program header. If this 135 * flag is not set, the match item is a section 136 * header. 137 * 138 * MATCH_F_NAME 139 * The name parameter contains valid information. 140 * 141 * MATCH_F_NDX 142 * The ndx argument contains valid information 143 * 144 * MATCH_F_TYPE 145 * The type argument contains valid information 146 */ 147 typedef enum { 148 MATCH_F_STRICT = 1, 149 MATCH_F_PHDR = 2, 150 MATCH_F_NAME = 4, 151 MATCH_F_NDX = 8, 152 MATCH_F_TYPE = 16 153 } match_flags_t; 154 155 /* It is common for calls to match() to specify all three arguments */ 156 #define MATCH_F_ALL (MATCH_F_NAME | MATCH_F_NDX | MATCH_F_TYPE) 157 158 extern int match(match_flags_t, const char *, uint_t, uint_t); 159 160 /* 161 * Possible return values from corenote() 162 */ 163 typedef enum { 164 CORENOTE_R_OK = 0, /* Note data successfully displayed */ 165 CORENOTE_R_OK_DUMP = 1, /* Note OK, but not handled. Display Hex dump */ 166 CORENOTE_R_BADDATA = 2, /* Note data truncated or otherwise malformed */ 167 CORENOTE_R_BADARCH = 3, /* core file note code does not contain */ 168 /* support for given architecture */ 169 CORENOTE_R_BADTYPE = 4 /* Unknown note type */ 170 } corenote_ret_t; 171 172 /* 173 * Define various elfdump() functions into their 32-bit and 64-bit variants. 174 */ 175 #if defined(_ELF64) 176 #define cap cap64 177 #define checksum checksum64 178 #define dynamic dynamic64 179 #define fake_shdr_cache fake_shdr_cache64 180 #define fake_shdr_cache_free fake_shdr_cache_free64 181 #define got got64 182 #define group group64 183 #define hash hash64 184 #define interp interp64 185 #define move move64 186 #define note note64 187 #define note_entry note_entry64 188 #define regular regular64 189 #define reloc reloc64 190 #define sections sections64 191 #define string string64 192 #define symbols symbols64 193 #define syminfo syminfo64 194 #define symlookup symlookup64 195 #define unwind unwind64 196 #define versions versions64 197 #define version_def version_def64 198 #define version_need version_need64 199 #else 200 #define cap cap32 201 #define checksum checksum32 202 #define dynamic dynamic32 203 #define fake_shdr_cache fake_shdr_cache32 204 #define fake_shdr_cache_free fake_shdr_cache_free32 205 #define got got32 206 #define group group32 207 #define hash hash32 208 #define interp interp32 209 #define move move32 210 #define note note32 211 #define note_entry note_entry32 212 #define regular regular32 213 #define reloc reloc32 214 #define sections sections32 215 #define string string32 216 #define symbols symbols32 217 #define syminfo syminfo32 218 #define symlookup symlookup32 219 #define unwind unwind32 220 #define versions versions32 221 #define version_def version_def32 222 #define version_need version_need32 223 #endif 224 225 extern corenote_ret_t corenote(Half, int, Word, const char *, Word); 226 extern void dump_eh_frame(uchar_t *, size_t, uint64_t, Half e_machine, 227 uchar_t *e_ident, uint64_t gotaddr); 228 extern void dump_hex_bytes(const void *, size_t, int, int, int); 229 230 extern int fake_shdr_cache32(const char *, int, Elf *, Elf32_Ehdr *, 231 Cache **, size_t *); 232 extern int fake_shdr_cache64(const char *, int, Elf *, Elf64_Ehdr *, 233 Cache **, size_t *); 234 235 extern void fake_shdr_cache_free32(Cache *, size_t); 236 extern void fake_shdr_cache_free64(Cache *, size_t); 237 238 extern int regular32(const char *, int, Elf *, uint_t, const char *, int, 239 uchar_t); 240 extern int regular64(const char *, int, Elf *, uint_t, const char *, int, 241 uchar_t); 242 243 #ifdef __cplusplus 244 } 245 #endif 246 247 #endif /* __ELFDUMP_H */ 248