1/* $NetBSD: _libdwarf.h,v 1.4 2024/03/03 17:37:30 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2007 John Birrell (jb@freebsd.org) 5 * Copyright (c) 2009-2014,2023 Kai Wang 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * Id: _libdwarf.h 4019 2023-10-22 03:06:17Z kaiwang27 30 */ 31 32#ifndef __LIBDWARF_H_ 33#define __LIBDWARF_H_ 34 35#if HAVE_NBTOOL_CONFIG_H 36# include "nbtool_config.h" 37#endif 38 39#include <sys/param.h> 40#include <sys/queue.h> 41#include <assert.h> 42#include <limits.h> 43#include <stdio.h> 44#include <stdlib.h> 45#include <string.h> 46#include <gelf.h> 47#include "dwarf.h" 48#include "libdwarf.h" 49#include "uthash.h" 50 51#include "_elftc.h" 52 53#define DWARF_DIE_HASH_SIZE 8191 54 55struct _libdwarf_globals { 56 Dwarf_Handler errhand; 57 Dwarf_Ptr errarg; 58 int applyreloc; 59}; 60 61extern struct _libdwarf_globals _libdwarf; 62 63#define _DWARF_SET_ERROR(_d, _e, _err, _elf_err) \ 64 _dwarf_set_error(_d, _e, _err, _elf_err, __func__, __LINE__) 65#define DWARF_SET_ERROR(_d, _e, _err) \ 66 _DWARF_SET_ERROR(_d, _e, _err, 0) 67#define DWARF_SET_ELF_ERROR(_d, _e) \ 68 _DWARF_SET_ERROR(_d, _e, DW_DLE_ELF, elf_errno()) 69 70/* 71 * Convenient macros for producer bytes stream generation. 72 */ 73#define WRITE_VALUE(value, bytes) \ 74 dbg->write_alloc(&ds->ds_data, &ds->ds_cap, &ds->ds_size, \ 75 (value), (bytes), error) 76#define WRITE_ULEB128(value) \ 77 _dwarf_write_uleb128_alloc(&ds->ds_data, &ds->ds_cap, \ 78 &ds->ds_size, (value), error) 79#define WRITE_SLEB128(value) \ 80 _dwarf_write_sleb128_alloc(&ds->ds_data, &ds->ds_cap, \ 81 &ds->ds_size, (value), error) 82#define WRITE_STRING(string) \ 83 _dwarf_write_string_alloc(&ds->ds_data, &ds->ds_cap, \ 84 &ds->ds_size, (string), error) 85#define WRITE_BLOCK(blk, size) \ 86 _dwarf_write_block_alloc(&ds->ds_data, &ds->ds_cap, \ 87 &ds->ds_size, (blk), (size), error) 88#define WRITE_PADDING(byte, cnt) \ 89 _dwarf_write_padding_alloc(&ds->ds_data, &ds->ds_cap, \ 90 &ds->ds_size, (byte), (cnt), error) 91#define RCHECK(expr) \ 92 do { \ 93 ret = expr; \ 94 if (ret != DW_DLE_NONE) \ 95 goto gen_fail; \ 96 } while (/* CONSTCOND */ 0) 97 98typedef struct _Dwarf_CU *Dwarf_CU; 99 100struct _Dwarf_AttrDef { 101 Dwarf_Half ad_attrib; /* DW_AT_XXX */ 102 Dwarf_Half ad_form; /* DW_FORM_XXX */ 103 uint64_t ad_offset; /* Offset in abbrev section. */ 104 int64_t ad_const; /* Implicit constant */ 105 STAILQ_ENTRY(_Dwarf_AttrDef) ad_next; /* Next attribute define. */ 106}; 107 108struct _Dwarf_Attribute { 109 Dwarf_Die at_die; /* Ptr to containing DIE. */ 110 Dwarf_Die at_refdie; /* Ptr to reference DIE. */ 111 uint64_t at_offset; /* Offset in info section. */ 112 Dwarf_Half at_attrib; /* DW_AT_XXX */ 113 Dwarf_Half at_form; /* DW_FORM_XXX */ 114 int at_indirect; /* Has indirect form. */ 115 union { 116 uint64_t u64; /* Unsigned value. */ 117 int64_t s64; /* Signed value. */ 118 char *s; /* String. */ 119 uint8_t *u8p; /* Block data. */ 120 } u[2]; /* Value. */ 121 Dwarf_Block at_block; /* Block. */ 122 Dwarf_Locdesc *at_ld; /* at value is locdesc. */ 123 Dwarf_P_Expr at_expr; /* at value is expr. */ 124 uint64_t at_relsym; /* Relocation symbol index. */ 125 const char *at_relsec; /* Rel. to dwarf section. */ 126 STAILQ_ENTRY(_Dwarf_Attribute) at_next; /* Next attribute. */ 127}; 128 129struct _Dwarf_Abbrev { 130 uint64_t ab_entry; /* Abbrev entry. */ 131 uint64_t ab_tag; /* Tag: DW_TAG_ */ 132 uint8_t ab_children; /* DW_CHILDREN_no or DW_CHILDREN_yes */ 133 uint64_t ab_offset; /* Offset in abbrev section. */ 134 uint64_t ab_length; /* Length of this abbrev entry. */ 135 uint64_t ab_atnum; /* Number of attribute defines. */ 136 UT_hash_handle ab_hh; /* Uthash handle. */ 137 STAILQ_HEAD(, _Dwarf_AttrDef) ab_attrdef; /* List of attribute defs. */ 138}; 139 140struct _Dwarf_Die { 141 Dwarf_Die die_parent; /* Parent DIE. */ 142 Dwarf_Die die_child; /* First child DIE. */ 143 Dwarf_Die die_left; /* Left sibling DIE. */ 144 Dwarf_Die die_right; /* Right sibling DIE. */ 145 uint64_t die_offset; /* DIE offset in section. */ 146 uint64_t die_next_off; /* Next DIE offset in section. */ 147 uint64_t die_abnum; /* Abbrev number. */ 148 Dwarf_Abbrev die_ab; /* Abbrev pointer. */ 149 Dwarf_Tag die_tag; /* DW_TAG_ */ 150 Dwarf_Debug die_dbg; /* Dwarf_Debug pointer. */ 151 Dwarf_CU die_cu; /* Compilation unit pointer. */ 152 char *die_name; /* Ptr to the name string. */ 153 Dwarf_Attribute *die_attrarray; /* Array of attributes. */ 154 STAILQ_HEAD(, _Dwarf_Attribute) die_attr; /* List of attributes. */ 155 STAILQ_ENTRY(_Dwarf_Die) die_pro_next; /* Next die in pro-die list. */ 156}; 157 158struct _Dwarf_P_Expr_Entry { 159 Dwarf_Loc ee_loc; /* Location expression. */ 160 Dwarf_Unsigned ee_sym; /* Optional related reloc sym index. */ 161 STAILQ_ENTRY(_Dwarf_P_Expr_Entry) ee_next; /* Next entry in list. */ 162}; 163 164struct _Dwarf_P_Expr { 165 Dwarf_Debug pe_dbg; /* Dwarf_Debug pointer. */ 166 uint8_t *pe_block; /* Expression block data. */ 167 int pe_invalid; /* Block data is up-to-date or not. */ 168 Dwarf_Unsigned pe_length; /* Length of the block. */ 169 STAILQ_HEAD(, _Dwarf_P_Expr_Entry) pe_eelist; /* List of entries. */ 170 STAILQ_ENTRY(_Dwarf_P_Expr) pe_next; /* Next expr in list. */ 171}; 172 173struct _Dwarf_Line { 174 Dwarf_LineInfo ln_li; /* Ptr to line info. */ 175 Dwarf_Addr ln_addr; /* Line address. */ 176 Dwarf_Unsigned ln_symndx; /* Symbol index for relocation. */ 177 Dwarf_Unsigned ln_fileno; /* File number. */ 178 Dwarf_Unsigned ln_lineno; /* Line number. */ 179 Dwarf_Signed ln_column; /* Column number. */ 180 Dwarf_Bool ln_bblock; /* Basic block flag. */ 181 Dwarf_Bool ln_stmt; /* Begin statement flag. */ 182 Dwarf_Bool ln_endseq; /* End sequence flag. */ 183 STAILQ_ENTRY(_Dwarf_Line) ln_next; /* Next line in list. */ 184}; 185 186struct _Dwarf_LineFile { 187 char *lf_fname; /* Filename. */ 188 char *lf_fullpath; /* Full pathname of the file. */ 189 Dwarf_Unsigned lf_dirndx; /* Dir index. */ 190 Dwarf_Unsigned lf_mtime; /* Modification time. */ 191 Dwarf_Unsigned lf_size; /* File size. */ 192 Dwarf_Form_Data16 lf_md5; /* File md5 digest. */ 193 STAILQ_ENTRY(_Dwarf_LineFile) lf_next; /* Next file in list. */ 194}; 195 196struct _Dwarf_LineInfo { 197 Dwarf_Unsigned li_length; /* Length of line info data. */ 198 Dwarf_Half li_version; /* Version of line info. */ 199 Dwarf_Unsigned li_hdrlen; /* Length of line info header. */ 200 Dwarf_Small li_minlen; /* Minimum instrutction length. */ 201 Dwarf_Small li_maxop; /* Maximum operations per inst. */ 202 Dwarf_Small li_defstmt; /* Default value of is_stmt. */ 203 int8_t li_lbase; /* Line base for special opcode. */ 204 Dwarf_Small li_lrange; /* Line range for special opcode. */ 205 Dwarf_Small li_opbase; /* Fisrt std opcode number. */ 206 Dwarf_Small *li_oplen; /* Array of std opcode len. */ 207 char **li_incdirs; /* Array of include dirs. */ 208 Dwarf_Unsigned li_inclen; /* Length of inc dir array. */ 209 char **li_lfnarray; /* Array of file names. */ 210 Dwarf_Unsigned li_lflen; /* Length of filename array. */ 211 STAILQ_HEAD(, _Dwarf_LineFile) li_lflist; /* List of files. */ 212 Dwarf_Line *li_lnarray; /* Array of lines. */ 213 Dwarf_Unsigned li_lnlen; /* Length of the line array. */ 214 STAILQ_HEAD(, _Dwarf_Line) li_lnlist; /* List of lines. */ 215}; 216 217struct _Dwarf_NamePair { 218 Dwarf_NameTbl np_nt; /* Ptr to containing name table. */ 219 Dwarf_Die np_die; /* Ptr to Ref. Die. */ 220 Dwarf_Unsigned np_offset; /* Offset in CU. */ 221 char *np_name; /* Object/Type name. */ 222 STAILQ_ENTRY(_Dwarf_NamePair) np_next; /* Next pair in the list. */ 223}; 224 225struct _Dwarf_NameTbl { 226 Dwarf_Unsigned nt_length; /* Name lookup table length. */ 227 Dwarf_Half nt_version; /* Name lookup table version. */ 228 Dwarf_CU nt_cu; /* Ptr to Ref. CU. */ 229 Dwarf_Off nt_cu_offset; /* Ref. CU offset in .debug_info */ 230 Dwarf_Unsigned nt_cu_length; /* Ref. CU length. */ 231 STAILQ_HEAD(, _Dwarf_NamePair) nt_nplist; /* List of offset+name pairs. */ 232 STAILQ_ENTRY(_Dwarf_NameTbl) nt_next; /* Next name table in the list. */ 233}; 234 235struct _Dwarf_NameSec { 236 STAILQ_HEAD(, _Dwarf_NameTbl) ns_ntlist; /* List of name tables. */ 237 Dwarf_NamePair *ns_array; /* Array of pairs of all tables. */ 238 Dwarf_Unsigned ns_len; /* Length of the pair array. */ 239}; 240 241struct _Dwarf_Fde { 242 Dwarf_Debug fde_dbg; /* Ptr to containing dbg. */ 243 Dwarf_Cie fde_cie; /* Ptr to associated CIE. */ 244 Dwarf_FrameSec fde_fs; /* Ptr to containing .debug_frame. */ 245 Dwarf_Ptr fde_addr; /* Ptr to start of the FDE. */ 246 Dwarf_Unsigned fde_offset; /* Offset of the FDE. */ 247 Dwarf_Unsigned fde_length; /* Length of the FDE. */ 248 Dwarf_Unsigned fde_cieoff; /* Offset of associated CIE. */ 249 Dwarf_Unsigned fde_initloc; /* Initial location. */ 250 Dwarf_Unsigned fde_adrange; /* Address range. */ 251 Dwarf_Unsigned fde_auglen; /* Augmentation length. */ 252 uint8_t *fde_augdata; /* Augmentation data. */ 253 uint8_t *fde_inst; /* Instructions. */ 254 Dwarf_Unsigned fde_instlen; /* Length of instructions. */ 255 Dwarf_Unsigned fde_instcap; /* Capacity of inst buffer. */ 256 Dwarf_Unsigned fde_symndx; /* Symbol index for relocation. */ 257 Dwarf_Unsigned fde_esymndx; /* End symbol index for relocation. */ 258 Dwarf_Addr fde_eoff; /* Offset from the end symbol. */ 259 STAILQ_ENTRY(_Dwarf_Fde) fde_next; /* Next FDE in list. */ 260}; 261 262struct _Dwarf_Cie { 263 Dwarf_Debug cie_dbg; /* Ptr to containing dbg. */ 264 Dwarf_Unsigned cie_index; /* Index of the CIE. */ 265 Dwarf_Unsigned cie_offset; /* Offset of the CIE. */ 266 Dwarf_Unsigned cie_length; /* Length of the CIE. */ 267 Dwarf_Half cie_version; /* CIE version. */ 268 uint8_t *cie_augment; /* CIE augmentation (UTF-8). */ 269 Dwarf_Unsigned cie_ehdata; /* Optional EH Data. */ 270 uint8_t cie_addrsize; /* Address size. (DWARF4) */ 271 uint8_t cie_segmentsize; /* Segment size. (DWARF4) */ 272 Dwarf_Unsigned cie_caf; /* Code alignment factor. */ 273 Dwarf_Signed cie_daf; /* Data alignment factor. */ 274 Dwarf_Unsigned cie_ra; /* Return address register. */ 275 Dwarf_Unsigned cie_auglen; /* Augmentation length. */ 276 uint8_t *cie_augdata; /* Augmentation data; */ 277 uint8_t cie_fde_encode; /* FDE PC start/range encode. */ 278 Dwarf_Ptr cie_initinst; /* Initial instructions. */ 279 Dwarf_Unsigned cie_instlen; /* Length of init instructions. */ 280 STAILQ_ENTRY(_Dwarf_Cie) cie_next; /* Next CIE in list. */ 281}; 282 283struct _Dwarf_FrameSec { 284 STAILQ_HEAD(, _Dwarf_Cie) fs_cielist; /* List of CIE. */ 285 STAILQ_HEAD(, _Dwarf_Fde) fs_fdelist; /* List of FDE. */ 286 Dwarf_Cie *fs_ciearray; /* Array of CIE. */ 287 Dwarf_Unsigned fs_cielen; /* Length of CIE array. */ 288 Dwarf_Fde *fs_fdearray; /* Array of FDE.*/ 289 Dwarf_Unsigned fs_fdelen; /* Length of FDE array. */ 290}; 291 292struct _Dwarf_Arange { 293 Dwarf_ArangeSet ar_as; /* Ptr to the set it belongs to. */ 294 Dwarf_Unsigned ar_address; /* Start PC. */ 295 Dwarf_Unsigned ar_range; /* PC range. */ 296 Dwarf_Unsigned ar_symndx; /* First symbol index for reloc. */ 297 Dwarf_Unsigned ar_esymndx; /* Second symbol index for reloc. */ 298 Dwarf_Addr ar_eoff; /* Offset from second symbol. */ 299 STAILQ_ENTRY(_Dwarf_Arange) ar_next; /* Next arange in list. */ 300}; 301 302struct _Dwarf_ArangeSet { 303 Dwarf_Unsigned as_length; /* Length of the arange set. */ 304 Dwarf_Half as_version; /* Version of the arange set. */ 305 Dwarf_Off as_cu_offset; /* Offset of associated CU. */ 306 Dwarf_CU as_cu; /* Ptr to associated CU. */ 307 Dwarf_Small as_addrsz; /* Target address size. */ 308 Dwarf_Small as_segsz; /* Target segment size. */ 309 STAILQ_HEAD (, _Dwarf_Arange) as_arlist; /* List of ae entries. */ 310 STAILQ_ENTRY(_Dwarf_ArangeSet) as_next; /* Next set in list. */ 311}; 312 313struct _Dwarf_MacroSet { 314 Dwarf_Macro_Details *ms_mdlist; /* Array of macinfo entries. */ 315 Dwarf_Unsigned ms_cnt; /* Length of the array. */ 316 STAILQ_ENTRY(_Dwarf_MacroSet) ms_next; /* Next set in list. */ 317}; 318 319struct _Dwarf_Rangelist { 320 Dwarf_CU rl_cu; /* Ptr to associated CU. */ 321 Dwarf_Unsigned rl_offset; /* Offset of the rangelist. */ 322 Dwarf_Ranges *rl_rgarray; /* Array of ranges. */ 323 Dwarf_Unsigned rl_rglen; /* Length of the ranges array. */ 324 STAILQ_ENTRY(_Dwarf_Rangelist) rl_next; /* Next rangelist in list. */ 325}; 326 327struct _Dwarf_CU { 328 Dwarf_Debug cu_dbg; /* Ptr to containing dbg. */ 329 Dwarf_Off cu_offset; /* Offset to the this CU. */ 330 uint32_t cu_length; /* Length of CU data. */ 331 uint16_t cu_length_size; /* Size in bytes of the length field. */ 332 uint16_t cu_version; /* DWARF version. */ 333 uint64_t cu_abbrev_offset; /* Offset into .debug_abbrev. */ 334 uint64_t cu_abbrev_offset_cur; /* Current abbrev offset. */ 335 int cu_abbrev_loaded; /* Abbrev table parsed. */ 336 uint64_t cu_abbrev_cnt; /* Abbrev entry count. */ 337 uint64_t cu_lineno_offset; /* Offset into .debug_lineno. */ 338 uint64_t cu_dwo_id; /* DWARF5 dwo id. */ 339 uint8_t cu_pointer_size;/* Number of bytes in pointer. */ 340 uint8_t cu_dwarf_size; /* CU section dwarf size. */ 341 uint8_t cu_unit_type; /* DWARF5 unit type. */ 342 Dwarf_Sig8 cu_type_sig; /* Type unit's signature. */ 343 uint64_t cu_type_offset; /* Type unit's type offset. */ 344 Dwarf_Off cu_next_offset; /* Offset to the next CU. */ 345 uint64_t cu_1st_offset; /* First DIE offset. */ 346 int cu_pass2; /* Two pass DIE traverse. */ 347 Dwarf_LineInfo cu_lineinfo; /* Ptr to Dwarf_LineInfo. */ 348 Dwarf_Abbrev cu_abbrev_hash; /* Abbrev hash table. */ 349 Dwarf_Bool cu_is_info; /* Compilation/type unit flag. */ 350 STAILQ_ENTRY(_Dwarf_CU) cu_next; /* Next compilation unit. */ 351}; 352 353typedef struct _Dwarf_Section { 354 const char *ds_name; /* Section name. */ 355 Dwarf_Small *ds_data; /* Section data. */ 356 Dwarf_Unsigned ds_addr; /* Section virtual addr. */ 357 Dwarf_Unsigned ds_size; /* Section size. */ 358} Dwarf_Section; 359 360typedef struct _Dwarf_P_Section { 361 char *ds_name; /* Section name. */ 362 Dwarf_Small *ds_data; /* Section data. */ 363 Dwarf_Unsigned ds_size; /* Section size. */ 364 Dwarf_Unsigned ds_cap; /* Section capacity. */ 365 Dwarf_Unsigned ds_ndx; /* ELF section index. */ 366 Dwarf_Unsigned ds_symndx; /* Section symbol index. (for reloc) */ 367 STAILQ_ENTRY(_Dwarf_P_Section) ds_next; /* Next section in the list. */ 368} *Dwarf_P_Section; 369 370typedef struct _Dwarf_Rel_Entry { 371 unsigned char dre_type; /* Reloc type. */ 372 unsigned char dre_length; /* Reloc storage unit length. */ 373 Dwarf_Unsigned dre_offset; /* Reloc storage unit offset. */ 374 Dwarf_Unsigned dre_addend; /* Reloc addend. */ 375 Dwarf_Unsigned dre_symndx; /* Reloc symbol index. */ 376 const char *dre_secname; /* Refer to some debug section. */ 377 STAILQ_ENTRY(_Dwarf_Rel_Entry) dre_next; /* Next reloc entry. */ 378} *Dwarf_Rel_Entry; 379 380typedef struct _Dwarf_Rel_Section { 381 struct _Dwarf_P_Section *drs_ds; /* Ptr to actual reloc ELF section. */ 382 struct _Dwarf_P_Section *drs_ref; /* Which debug section it refers. */ 383 struct Dwarf_Relocation_Data_s *drs_drd; /* Reloc data array. */ 384 STAILQ_HEAD(, _Dwarf_Rel_Entry) drs_dre; /* Reloc entry list. */ 385 Dwarf_Unsigned drs_drecnt; /* Count of entries. */ 386 Dwarf_Unsigned drs_size; /* Size of ELF section in bytes. */ 387 int drs_addend; /* Elf_Rel or Elf_Rela */ 388 STAILQ_ENTRY(_Dwarf_Rel_Section) drs_next; /* Next reloc section. */ 389} *Dwarf_Rel_Section; 390 391typedef struct { 392 Elf_Data *ed_data; 393 void *ed_alloc; 394} Dwarf_Elf_Data; 395 396typedef struct { 397 Elf *eo_elf; 398 GElf_Ehdr eo_ehdr; 399 GElf_Shdr *eo_shdr; 400 Dwarf_Elf_Data *eo_data; 401 Dwarf_Unsigned eo_seccnt; 402 size_t eo_strndx; 403 Dwarf_Obj_Access_Methods eo_methods; 404} Dwarf_Elf_Object; 405 406struct _Dwarf_Debug { 407 Dwarf_Obj_Access_Interface *dbg_iface; 408 Dwarf_Section *dbg_section; /* Dwarf section list. */ 409 Dwarf_Section *dbg_info_sec; /* Pointer to info section. */ 410 Dwarf_Off dbg_info_off; /* Current info section offset. */ 411 Dwarf_Section *dbg_types_sec; /* Pointer to type section. */ 412 Dwarf_Off dbg_types_off; /* Current types section offset. */ 413 Dwarf_Unsigned dbg_seccnt; /* Total number of dwarf sections. */ 414 int dbg_mode; /* Access mode. */ 415 int dbg_pointer_size; /* Object address size. */ 416 int dbg_offset_size; /* DWARF offset size. */ 417 int dbg_info_loaded; /* Flag indicating all CU loaded. */ 418 int dbg_types_loaded; /* Flag indicating all TU loaded. */ 419 Dwarf_Half dbg_machine; /* ELF machine architecture. */ 420 Dwarf_Handler dbg_errhand; /* Error handler. */ 421 Dwarf_Ptr dbg_errarg; /* Argument to the error handler. */ 422 STAILQ_HEAD(, _Dwarf_CU) dbg_cu;/* List of compilation units. */ 423 STAILQ_HEAD(, _Dwarf_CU) dbg_tu;/* List of type units. */ 424 Dwarf_CU dbg_cu_current; /* Ptr to the current CU. */ 425 Dwarf_CU dbg_tu_current; /* Ptr to the current TU. */ 426 Dwarf_NameSec dbg_globals; /* Ptr to pubnames lookup section. */ 427 Dwarf_NameSec dbg_pubtypes; /* Ptr to pubtypes lookup section. */ 428 Dwarf_NameSec dbg_weaks; /* Ptr to weaknames lookup section. */ 429 Dwarf_NameSec dbg_funcs; /* Ptr to static funcs lookup sect. */ 430 Dwarf_NameSec dbg_vars; /* Ptr to static vars lookup sect. */ 431 Dwarf_NameSec dbg_types; /* Ptr to types lookup section. */ 432 Dwarf_FrameSec dbg_frame; /* Ptr to .debug_frame section. */ 433 Dwarf_FrameSec dbg_eh_frame; /* Ptr to .eh_frame section. */ 434 STAILQ_HEAD(, _Dwarf_ArangeSet) dbg_aslist; /* List of arange set. */ 435 Dwarf_Arange *dbg_arange_array; /* Array of arange. */ 436 Dwarf_Unsigned dbg_arange_cnt; /* Length of the arange array. */ 437 char *dbg_strtab; /* Dwarf string table. */ 438 Dwarf_Unsigned dbg_strtab_cap; /* Dwarf string table capacity. */ 439 Dwarf_Unsigned dbg_strtab_size; /* Dwarf string table size. */ 440 char *dbg_line_strtab;/* Dwarf line info string table. */ 441 STAILQ_HEAD(, _Dwarf_MacroSet) dbg_mslist; /* List of macro set. */ 442 STAILQ_HEAD(, _Dwarf_Rangelist) dbg_rllist; /* List of rangelist. */ 443 uint64_t (*read)(uint8_t *, uint64_t *, int); 444 void (*write)(uint8_t *, uint64_t *, uint64_t, int); 445 int (*write_alloc)(uint8_t **, uint64_t *, uint64_t *, 446 uint64_t, int, Dwarf_Error *); 447 uint64_t (*decode)(uint8_t **, int); 448 449 Dwarf_Half dbg_frame_rule_table_size; 450 Dwarf_Half dbg_frame_rule_initial_value; 451 Dwarf_Half dbg_frame_cfa_value; 452 Dwarf_Half dbg_frame_same_value; 453 Dwarf_Half dbg_frame_undefined_value; 454 455 Dwarf_Regtable3 *dbg_internal_reg_table; 456 457 /* 458 * Fields used by libdwarf producer. 459 */ 460 461 Dwarf_Unsigned dbgp_flags; 462 Dwarf_Unsigned dbgp_isa; 463 Dwarf_Callback_Func dbgp_func; 464 Dwarf_Callback_Func_b dbgp_func_b; 465 Dwarf_Die dbgp_root_die; 466 STAILQ_HEAD(, _Dwarf_Die) dbgp_dielist; 467 STAILQ_HEAD(, _Dwarf_P_Expr) dbgp_pelist; 468 Dwarf_LineInfo dbgp_lineinfo; 469 Dwarf_ArangeSet dbgp_as; 470 Dwarf_Macro_Details *dbgp_mdlist; 471 Dwarf_Unsigned dbgp_mdcnt; 472 STAILQ_HEAD(, _Dwarf_Cie) dbgp_cielist; 473 STAILQ_HEAD(, _Dwarf_Fde) dbgp_fdelist; 474 Dwarf_Unsigned dbgp_cielen; 475 Dwarf_Unsigned dbgp_fdelen; 476 Dwarf_NameTbl dbgp_pubs; 477 Dwarf_NameTbl dbgp_weaks; 478 Dwarf_NameTbl dbgp_funcs; 479 Dwarf_NameTbl dbgp_types; 480 Dwarf_NameTbl dbgp_vars; 481 STAILQ_HEAD(, _Dwarf_P_Section) dbgp_seclist; 482 Dwarf_Unsigned dbgp_seccnt; 483 Dwarf_P_Section dbgp_secpos; 484 Dwarf_P_Section dbgp_info; 485 STAILQ_HEAD(, _Dwarf_Rel_Section) dbgp_drslist; 486 Dwarf_Unsigned dbgp_drscnt; 487 Dwarf_Rel_Section dbgp_drspos; 488}; 489 490/* 491 * Internal function prototypes. 492 */ 493 494int _dwarf_abbrev_add(Dwarf_CU, uint64_t, uint64_t, uint8_t, 495 uint64_t, Dwarf_Abbrev *, Dwarf_Error *); 496void _dwarf_abbrev_cleanup(Dwarf_CU); 497int _dwarf_abbrev_find(Dwarf_CU, uint64_t, Dwarf_Abbrev *, 498 Dwarf_Error *); 499int _dwarf_abbrev_gen(Dwarf_P_Debug, Dwarf_Error *); 500int _dwarf_abbrev_parse(Dwarf_Debug, Dwarf_CU, Dwarf_Unsigned *, 501 Dwarf_Abbrev *, Dwarf_Error *); 502int _dwarf_add_AT_dataref(Dwarf_P_Debug, Dwarf_P_Die, Dwarf_Half, 503 Dwarf_Unsigned, Dwarf_Unsigned, const char *, 504 Dwarf_P_Attribute *, Dwarf_Error *); 505int _dwarf_add_string_attr(Dwarf_P_Die, Dwarf_P_Attribute *, 506 Dwarf_Half, char *, Dwarf_Error *); 507int _dwarf_alloc(Dwarf_Debug *, int, Dwarf_Error *); 508void _dwarf_arange_cleanup(Dwarf_Debug); 509int _dwarf_arange_gen(Dwarf_P_Debug, Dwarf_Error *); 510int _dwarf_arange_init(Dwarf_Debug, Dwarf_Error *); 511void _dwarf_arange_pro_cleanup(Dwarf_P_Debug); 512int _dwarf_attr_alloc(Dwarf_Die, Dwarf_Attribute *, Dwarf_Error *); 513Dwarf_Attribute _dwarf_attr_find(Dwarf_Die, Dwarf_Half); 514int _dwarf_attr_gen(Dwarf_P_Debug, Dwarf_P_Section, Dwarf_Rel_Section, 515 Dwarf_CU, Dwarf_Die, int, Dwarf_Error *); 516int _dwarf_attr_init(Dwarf_Debug, Dwarf_Section *, uint64_t *, int, 517 Dwarf_CU, Dwarf_Die, Dwarf_AttrDef, uint64_t, int, 518 Dwarf_Error *); 519int _dwarf_attrdef_add(Dwarf_Debug, Dwarf_Abbrev, uint64_t, 520 uint64_t, int64_t, uint64_t, Dwarf_AttrDef *, 521 Dwarf_Error *); 522uint64_t _dwarf_decode_lsb(uint8_t **, int); 523uint64_t _dwarf_decode_msb(uint8_t **, int); 524int64_t _dwarf_decode_sleb128(uint8_t **); 525uint64_t _dwarf_decode_uleb128(uint8_t **); 526void _dwarf_deinit(Dwarf_Debug); 527int _dwarf_die_alloc(Dwarf_Debug, Dwarf_Die *, Dwarf_Error *); 528int _dwarf_die_count_links(Dwarf_P_Die, Dwarf_P_Die, 529 Dwarf_P_Die, Dwarf_P_Die); 530Dwarf_Die _dwarf_die_find(Dwarf_Die, Dwarf_Unsigned); 531int _dwarf_die_gen(Dwarf_P_Debug, Dwarf_CU, Dwarf_Rel_Section, 532 Dwarf_Error *); 533void _dwarf_die_link(Dwarf_P_Die, Dwarf_P_Die, Dwarf_P_Die, 534 Dwarf_P_Die, Dwarf_P_Die); 535int _dwarf_die_parse(Dwarf_Debug, Dwarf_Section *, Dwarf_CU, int, 536 uint64_t, uint64_t, Dwarf_Die *, int, Dwarf_Error *); 537void _dwarf_die_pro_cleanup(Dwarf_P_Debug); 538void _dwarf_elf_deinit(Dwarf_Debug); 539int _dwarf_elf_init(Dwarf_Debug, Elf *, Dwarf_Error *); 540int _dwarf_elf_load_section(void *, Dwarf_Half, Dwarf_Small **, 541 int *); 542Dwarf_Endianness _dwarf_elf_get_byte_order(void *); 543Dwarf_Small _dwarf_elf_get_length_size(void *); 544Dwarf_Small _dwarf_elf_get_pointer_size(void *); 545Dwarf_Unsigned _dwarf_elf_get_section_count(void *); 546int _dwarf_elf_get_section_info(void *, Dwarf_Half, 547 Dwarf_Obj_Access_Section *, int *); 548void _dwarf_expr_cleanup(Dwarf_P_Debug); 549int _dwarf_expr_into_block(Dwarf_P_Expr, Dwarf_Error *); 550Dwarf_Section *_dwarf_find_next_types_section(Dwarf_Debug, Dwarf_Section *); 551Dwarf_Section *_dwarf_find_section(Dwarf_Debug, const char *); 552void _dwarf_frame_cleanup(Dwarf_Debug); 553int _dwarf_frame_fde_add_inst(Dwarf_P_Fde, Dwarf_Small, 554 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Error *); 555int _dwarf_frame_gen(Dwarf_P_Debug, Dwarf_Error *); 556int _dwarf_frame_get_fop(Dwarf_Debug, uint8_t, uint8_t *, 557 Dwarf_Unsigned, Dwarf_Frame_Op **, Dwarf_Signed *, 558 Dwarf_Error *); 559int _dwarf_frame_get_internal_table(Dwarf_Fde, Dwarf_Addr, 560 Dwarf_Regtable3 **, Dwarf_Addr *, Dwarf_Error *); 561int _dwarf_frame_interal_table_init(Dwarf_Debug, Dwarf_Error *); 562void _dwarf_frame_params_init(Dwarf_Debug); 563void _dwarf_frame_pro_cleanup(Dwarf_P_Debug); 564int _dwarf_frame_regtable_copy(Dwarf_Debug, Dwarf_Regtable3 **, 565 Dwarf_Regtable3 *, Dwarf_Error *); 566int _dwarf_frame_section_load(Dwarf_Debug, Dwarf_Error *); 567int _dwarf_frame_section_load_eh(Dwarf_Debug, Dwarf_Error *); 568int _dwarf_generate_sections(Dwarf_P_Debug, Dwarf_Error *); 569Dwarf_Unsigned _dwarf_get_reloc_type(Dwarf_P_Debug, int); 570int _dwarf_get_reloc_size(Dwarf_Debug, Dwarf_Unsigned); 571void _dwarf_info_cleanup(Dwarf_Debug); 572int _dwarf_info_first_cu(Dwarf_Debug, Dwarf_Error *); 573int _dwarf_info_first_tu(Dwarf_Debug, Dwarf_Error *); 574int _dwarf_info_gen(Dwarf_P_Debug, Dwarf_Error *); 575int _dwarf_info_load(Dwarf_Debug, Dwarf_Bool, Dwarf_Bool, 576 Dwarf_Error *); 577int _dwarf_info_next_cu(Dwarf_Debug, Dwarf_Error *); 578int _dwarf_info_next_tu(Dwarf_Debug, Dwarf_Error *); 579void _dwarf_info_pro_cleanup(Dwarf_P_Debug); 580int _dwarf_init(Dwarf_Debug, Dwarf_Unsigned, Dwarf_Handler, 581 Dwarf_Ptr, Dwarf_Error *); 582int _dwarf_lineno_gen(Dwarf_P_Debug, Dwarf_Error *); 583int _dwarf_lineno_init(Dwarf_Die, uint64_t, Dwarf_Error *); 584void _dwarf_lineno_cleanup(Dwarf_LineInfo); 585void _dwarf_lineno_pro_cleanup(Dwarf_P_Debug); 586int _dwarf_loc_fill_locdesc(Dwarf_Debug, Dwarf_Locdesc *, 587 uint8_t *, uint64_t, uint8_t, uint8_t, uint8_t, 588 Dwarf_Error *); 589int _dwarf_loc_fill_locexpr(Dwarf_Debug, Dwarf_Locdesc **, 590 uint8_t *, uint64_t, uint8_t, uint8_t, uint8_t, 591 Dwarf_Error *); 592int _dwarf_loc_add(Dwarf_Die, Dwarf_Attribute, Dwarf_Error *); 593int _dwarf_loc_expr_add_atom(Dwarf_Debug, uint8_t *, uint8_t *, 594 Dwarf_Small, Dwarf_Unsigned, Dwarf_Unsigned, int *, 595 Dwarf_Error *); 596int _dwarf_loclist_find(Dwarf_Debug, Dwarf_CU, uint64_t, 597 Dwarf_Locdesc ***, Dwarf_Signed *, Dwarf_Unsigned *, 598 Dwarf_Error *); 599void _dwarf_macinfo_cleanup(Dwarf_Debug); 600int _dwarf_macinfo_gen(Dwarf_P_Debug, Dwarf_Error *); 601int _dwarf_macinfo_init(Dwarf_Debug, Dwarf_Error *); 602void _dwarf_macinfo_pro_cleanup(Dwarf_P_Debug); 603int _dwarf_nametbl_init(Dwarf_Debug, Dwarf_NameSec *, 604 Dwarf_Section *, Dwarf_Error *); 605void _dwarf_nametbl_cleanup(Dwarf_NameSec *); 606int _dwarf_nametbl_gen(Dwarf_P_Debug, const char *, Dwarf_NameTbl, 607 Dwarf_Error *); 608void _dwarf_nametbl_pro_cleanup(Dwarf_NameTbl *); 609int _dwarf_pro_callback(Dwarf_P_Debug, char *, int, Dwarf_Unsigned, 610 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 611 Dwarf_Unsigned *, int *); 612Dwarf_P_Section _dwarf_pro_find_section(Dwarf_P_Debug, const char *); 613int _dwarf_ranges_add(Dwarf_Debug, Dwarf_CU, uint64_t, 614 Dwarf_Rangelist *, Dwarf_Error *); 615void _dwarf_ranges_cleanup(Dwarf_Debug); 616int _dwarf_ranges_find(Dwarf_Debug, uint64_t, Dwarf_Rangelist *); 617uint64_t _dwarf_read_lsb(uint8_t *, uint64_t *, int); 618uint64_t _dwarf_read_msb(uint8_t *, uint64_t *, int); 619int64_t _dwarf_read_sleb128(uint8_t *, uint64_t *); 620uint64_t _dwarf_read_uleb128(uint8_t *, uint64_t *); 621char *_dwarf_read_string(void *, Dwarf_Unsigned, uint64_t *); 622uint8_t *_dwarf_read_block(void *, uint64_t *, uint64_t); 623int _dwarf_reloc_section_finalize(Dwarf_P_Debug, Dwarf_Rel_Section, 624 Dwarf_Error *); 625int _dwarf_reloc_entry_add(Dwarf_P_Debug, Dwarf_Rel_Section, 626 Dwarf_P_Section, unsigned char, unsigned char, 627 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 628 const char *, Dwarf_Error *); 629int _dwarf_reloc_entry_add_pair(Dwarf_P_Debug, Dwarf_Rel_Section, 630 Dwarf_P_Section, unsigned char, Dwarf_Unsigned, 631 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 632 Dwarf_Unsigned, Dwarf_Error *); 633void _dwarf_reloc_cleanup(Dwarf_P_Debug); 634int _dwarf_reloc_gen(Dwarf_P_Debug, Dwarf_Error *); 635int _dwarf_reloc_section_gen(Dwarf_P_Debug, Dwarf_Rel_Section, 636 Dwarf_Error *); 637int _dwarf_reloc_section_init(Dwarf_P_Debug, Dwarf_Rel_Section *, 638 Dwarf_P_Section, Dwarf_Error *); 639void _dwarf_reloc_section_free(Dwarf_P_Debug, Dwarf_Rel_Section *); 640void _dwarf_section_cleanup(Dwarf_P_Debug); 641int _dwarf_section_callback(Dwarf_P_Debug, Dwarf_P_Section, 642 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 643 Dwarf_Unsigned, Dwarf_Error *); 644void _dwarf_section_free(Dwarf_P_Debug, Dwarf_P_Section *); 645int _dwarf_section_init(Dwarf_P_Debug, Dwarf_P_Section *, 646 const char *, int, Dwarf_Error *); 647void _dwarf_set_error(Dwarf_Debug, Dwarf_Error *, int, int, 648 const char *, int); 649int _dwarf_strtab_add(Dwarf_Debug, char *, uint64_t *, 650 Dwarf_Error *); 651void _dwarf_strtab_cleanup(Dwarf_Debug); 652int _dwarf_strtab_gen(Dwarf_P_Debug, Dwarf_Error *); 653char *_dwarf_strtab_get_table(Dwarf_Debug); 654char *_dwarf_strtab_get_line_table(Dwarf_Debug); 655int _dwarf_strtab_init(Dwarf_Debug, Dwarf_Error *); 656void _dwarf_type_unit_cleanup(Dwarf_Debug); 657void _dwarf_write_block(void *, uint64_t *, uint8_t *, uint64_t); 658int _dwarf_write_block_alloc(uint8_t **, uint64_t *, uint64_t *, 659 uint8_t *, uint64_t, Dwarf_Error *); 660void _dwarf_write_lsb(uint8_t *, uint64_t *, uint64_t, int); 661int _dwarf_write_lsb_alloc(uint8_t **, uint64_t *, uint64_t *, 662 uint64_t, int, Dwarf_Error *); 663void _dwarf_write_msb(uint8_t *, uint64_t *, uint64_t, int); 664int _dwarf_write_msb_alloc(uint8_t **, uint64_t *, uint64_t *, 665 uint64_t, int, Dwarf_Error *); 666void _dwarf_write_padding(void *, uint64_t *, uint8_t, uint64_t); 667int _dwarf_write_padding_alloc(uint8_t **, uint64_t *, uint64_t *, 668 uint8_t, uint64_t, Dwarf_Error *); 669void _dwarf_write_string(void *, uint64_t *, char *); 670int _dwarf_write_string_alloc(uint8_t **, uint64_t *, uint64_t *, 671 char *, Dwarf_Error *); 672int _dwarf_write_sleb128(uint8_t *, uint8_t *, int64_t); 673int _dwarf_write_sleb128_alloc(uint8_t **, uint64_t *, uint64_t *, 674 int64_t, Dwarf_Error *); 675int _dwarf_write_uleb128(uint8_t *, uint8_t *, uint64_t); 676int _dwarf_write_uleb128_alloc(uint8_t **, uint64_t *, uint64_t *, 677 uint64_t, Dwarf_Error *); 678 679#endif /* !__LIBDWARF_H_ */ 680