_libdwarf.h revision 1.1.1.1
1/*- 2 * Copyright (c) 2007 John Birrell (jb@freebsd.org) 3 * Copyright (c) 2009-2011 Kai Wang 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Id: _libdwarf.h 2075 2011-10-27 03:47:28Z jkoshy 28 */ 29 30#ifndef __LIBDWARF_H_ 31#define __LIBDWARF_H_ 32 33#include <sys/param.h> 34#include <sys/queue.h> 35#include <assert.h> 36#include <limits.h> 37#include <stdio.h> 38#include <stdlib.h> 39#include <string.h> 40#include <gelf.h> 41#include "dwarf.h" 42#include "libdwarf.h" 43#include "uthash.h" 44 45#include "_elftc.h" 46 47#define DWARF_DIE_HASH_SIZE 8191 48 49struct _libdwarf_globals { 50 Dwarf_Handler errhand; 51 Dwarf_Ptr errarg; 52 int applyrela; 53}; 54 55extern struct _libdwarf_globals _libdwarf; 56 57#define _DWARF_SET_ERROR(_d, _e, _err, _elf_err) \ 58 _dwarf_set_error(_d, _e, _err, _elf_err, __func__, __LINE__) 59#define DWARF_SET_ERROR(_d, _e, _err) \ 60 _DWARF_SET_ERROR(_d, _e, _err, 0) 61#define DWARF_SET_ELF_ERROR(_d, _e) \ 62 _DWARF_SET_ERROR(_d, _e, DW_DLE_ELF, elf_errno()) 63 64/* 65 * Convenient macros for producer bytes stream generation. 66 */ 67#define WRITE_VALUE(value, bytes) \ 68 dbg->write_alloc(&ds->ds_data, &ds->ds_cap, &ds->ds_size, \ 69 (value), (bytes), error) 70#define WRITE_ULEB128(value) \ 71 _dwarf_write_uleb128_alloc(&ds->ds_data, &ds->ds_cap, \ 72 &ds->ds_size, (value), error) 73#define WRITE_SLEB128(value) \ 74 _dwarf_write_sleb128_alloc(&ds->ds_data, &ds->ds_cap, \ 75 &ds->ds_size, (value), error) 76#define WRITE_STRING(string) \ 77 _dwarf_write_string_alloc(&ds->ds_data, &ds->ds_cap, \ 78 &ds->ds_size, (string), error) 79#define WRITE_BLOCK(blk, size) \ 80 _dwarf_write_block_alloc(&ds->ds_data, &ds->ds_cap, \ 81 &ds->ds_size, (blk), (size), error) 82#define WRITE_PADDING(byte, cnt) \ 83 _dwarf_write_padding_alloc(&ds->ds_data, &ds->ds_cap, \ 84 &ds->ds_size, (byte), (cnt), error) 85#define RCHECK(expr) \ 86 do { \ 87 ret = expr; \ 88 if (ret != DW_DLE_NONE) \ 89 goto gen_fail; \ 90 } while(0) 91 92 93struct _Dwarf_AttrDef { 94 uint64_t ad_attrib; /* DW_AT_XXX */ 95 uint64_t ad_form; /* DW_FORM_XXX */ 96 uint64_t ad_offset; /* Offset in abbrev section. */ 97 STAILQ_ENTRY(_Dwarf_AttrDef) ad_next; /* Next attribute define. */ 98}; 99 100struct _Dwarf_Attribute { 101 Dwarf_Die at_die; /* Ptr to containing DIE. */ 102 Dwarf_Die at_refdie; /* Ptr to reference DIE. */ 103 uint64_t at_offset; /* Offset in info section. */ 104 uint64_t at_attrib; /* DW_AT_XXX */ 105 uint64_t at_form; /* DW_FORM_XXX */ 106 int at_indirect; /* Has indirect form. */ 107 union { 108 uint64_t u64; /* Unsigned value. */ 109 int64_t s64; /* Signed value. */ 110 char *s; /* String. */ 111 uint8_t *u8p; /* Block data. */ 112 } u[2]; /* Value. */ 113 Dwarf_Block at_block; /* Block. */ 114 Dwarf_Locdesc *at_ld; /* at value is locdesc. */ 115 Dwarf_P_Expr at_expr; /* at value is expr. */ 116 uint64_t at_relsym; /* Relocation symbol index. */ 117 const char *at_relsec; /* Rel. to dwarf section. */ 118 STAILQ_ENTRY(_Dwarf_Attribute) at_next; /* Next attribute. */ 119}; 120 121struct _Dwarf_Abbrev { 122 uint64_t ab_entry; /* Abbrev entry. */ 123 uint64_t ab_tag; /* Tag: DW_TAG_ */ 124 uint8_t ab_children; /* DW_CHILDREN_no or DW_CHILDREN_yes */ 125 uint64_t ab_offset; /* Offset in abbrev section. */ 126 uint64_t ab_length; /* Length of this abbrev entry. */ 127 uint64_t ab_atnum; /* Number of attribute defines. */ 128 UT_hash_handle ab_hh; /* Uthash handle. */ 129 STAILQ_HEAD(, _Dwarf_AttrDef) ab_attrdef; /* List of attribute defs. */ 130}; 131 132struct _Dwarf_Die { 133 Dwarf_Die die_parent; /* Parent DIE. */ 134 Dwarf_Die die_child; /* First child DIE. */ 135 Dwarf_Die die_left; /* Left sibling DIE. */ 136 Dwarf_Die die_right; /* Right sibling DIE. */ 137 uint64_t die_offset; /* DIE offset in section. */ 138 uint64_t die_next_off; /* Next DIE offset in section. */ 139 uint64_t die_abnum; /* Abbrev number. */ 140 Dwarf_Abbrev die_ab; /* Abbrev pointer. */ 141 Dwarf_Tag die_tag; /* DW_TAG_ */ 142 Dwarf_Debug die_dbg; /* Dwarf_Debug pointer. */ 143 Dwarf_CU die_cu; /* Compilation unit pointer. */ 144 char *die_name; /* Ptr to the name string. */ 145 Dwarf_Attribute *die_attrarray; /* Array of attributes. */ 146 STAILQ_HEAD(, _Dwarf_Attribute) die_attr; /* List of attributes. */ 147 STAILQ_ENTRY(_Dwarf_Die) die_pro_next; /* Next die in pro-die list. */ 148}; 149 150struct _Dwarf_Loclist { 151 Dwarf_Locdesc **ll_ldlist; /* Array of Locdesc pointer. */ 152 int ll_ldlen; /* Number of Locdesc. */ 153 Dwarf_Unsigned ll_offset; /* Offset in .debug_loc section. */ 154 Dwarf_Unsigned ll_length; /* Length (in bytes) of the loclist. */ 155 TAILQ_ENTRY(_Dwarf_Loclist) ll_next; /* Next loclist in 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 STAILQ_ENTRY(_Dwarf_LineFile) lf_next; /* Next file in list. */ 193}; 194 195struct _Dwarf_LineInfo { 196 Dwarf_Unsigned li_length; /* Length of line info data. */ 197 Dwarf_Half li_version; /* Version of line info. */ 198 Dwarf_Unsigned li_hdrlen; /* Length of line info header. */ 199 Dwarf_Small li_minlen; /* Minimum instrutction length. */ 200 Dwarf_Small li_defstmt; /* Default value of is_stmt. */ 201 int8_t li_lbase; /* Line base for special opcode. */ 202 Dwarf_Small li_lrange; /* Line range for special opcode. */ 203 Dwarf_Small li_opbase; /* Fisrt std opcode number. */ 204 Dwarf_Small *li_oplen; /* Array of std opcode len. */ 205 char **li_incdirs; /* Array of include dirs. */ 206 Dwarf_Unsigned li_inclen; /* Length of inc dir array. */ 207 char **li_lfnarray; /* Array of file names. */ 208 Dwarf_Unsigned li_lflen; /* Length of filename array. */ 209 STAILQ_HEAD(, _Dwarf_LineFile) li_lflist; /* List of files. */ 210 Dwarf_Line *li_lnarray; /* Array of lines. */ 211 Dwarf_Unsigned li_lnlen; /* Length of the line array. */ 212 STAILQ_HEAD(, _Dwarf_Line) li_lnlist; /* List of lines. */ 213}; 214 215struct _Dwarf_NamePair { 216 Dwarf_NameTbl np_nt; /* Ptr to containing name table. */ 217 Dwarf_Die np_die; /* Ptr to Ref. Die. */ 218 Dwarf_Unsigned np_offset; /* Offset in CU. */ 219 char *np_name; /* Object/Type name. */ 220 STAILQ_ENTRY(_Dwarf_NamePair) np_next; /* Next pair in the list. */ 221}; 222 223struct _Dwarf_NameTbl { 224 Dwarf_Unsigned nt_length; /* Name lookup table length. */ 225 Dwarf_Half nt_version; /* Name lookup table version. */ 226 Dwarf_CU nt_cu; /* Ptr to Ref. CU. */ 227 Dwarf_Off nt_cu_offset; /* Ref. CU offset in .debug_info */ 228 Dwarf_Unsigned nt_cu_length; /* Ref. CU length. */ 229 STAILQ_HEAD(, _Dwarf_NamePair) nt_nplist; /* List of offset+name pairs. */ 230 STAILQ_ENTRY(_Dwarf_NameTbl) nt_next; /* Next name table in the list. */ 231}; 232 233struct _Dwarf_NameSec { 234 STAILQ_HEAD(, _Dwarf_NameTbl) ns_ntlist; /* List of name tables. */ 235 Dwarf_NamePair *ns_array; /* Array of pairs of all tables. */ 236 Dwarf_Unsigned ns_len; /* Length of the pair array. */ 237}; 238 239struct _Dwarf_Fde { 240 Dwarf_Debug fde_dbg; /* Ptr to containing dbg. */ 241 Dwarf_Cie fde_cie; /* Ptr to associated CIE. */ 242 Dwarf_FrameSec fde_fs; /* Ptr to containing .debug_frame. */ 243 Dwarf_Ptr fde_addr; /* Ptr to start of the FDE. */ 244 Dwarf_Unsigned fde_offset; /* Offset of the FDE. */ 245 Dwarf_Unsigned fde_length; /* Length of the FDE. */ 246 Dwarf_Unsigned fde_cieoff; /* Offset of associated CIE. */ 247 Dwarf_Unsigned fde_initloc; /* Initial location. */ 248 Dwarf_Unsigned fde_adrange; /* Address range. */ 249 Dwarf_Unsigned fde_auglen; /* Augmentation length. */ 250 uint8_t *fde_augdata; /* Augmentation data. */ 251 uint8_t *fde_inst; /* Instructions. */ 252 Dwarf_Unsigned fde_instlen; /* Length of instructions. */ 253 Dwarf_Unsigned fde_instcap; /* Capacity of inst buffer. */ 254 Dwarf_Unsigned fde_symndx; /* Symbol index for relocation. */ 255 Dwarf_Unsigned fde_esymndx; /* End symbol index for relocation. */ 256 Dwarf_Addr fde_eoff; /* Offset from the end symbol. */ 257 STAILQ_ENTRY(_Dwarf_Fde) fde_next; /* Next FDE in list. */ 258}; 259 260struct _Dwarf_Cie { 261 Dwarf_Debug cie_dbg; /* Ptr to containing dbg. */ 262 Dwarf_Unsigned cie_index; /* Index of the CIE. */ 263 Dwarf_Unsigned cie_offset; /* Offset of the CIE. */ 264 Dwarf_Unsigned cie_length; /* Length of the CIE. */ 265 Dwarf_Half cie_version; /* CIE version. */ 266 uint8_t *cie_augment; /* CIE augmentation (UTF-8). */ 267 Dwarf_Unsigned cie_ehdata; /* Optional EH Data. */ 268 Dwarf_Unsigned cie_caf; /* Code alignment factor. */ 269 Dwarf_Signed cie_daf; /* Data alignment factor. */ 270 Dwarf_Unsigned cie_ra; /* Return address register. */ 271 Dwarf_Unsigned cie_auglen; /* Augmentation length. */ 272 uint8_t *cie_augdata; /* Augmentation data; */ 273 uint8_t cie_fde_encode; /* FDE PC start/range encode. */ 274 Dwarf_Ptr cie_initinst; /* Initial instructions. */ 275 Dwarf_Unsigned cie_instlen; /* Length of init instructions. */ 276 STAILQ_ENTRY(_Dwarf_Cie) cie_next; /* Next CIE in list. */ 277}; 278 279struct _Dwarf_FrameSec { 280 STAILQ_HEAD(, _Dwarf_Cie) fs_cielist; /* List of CIE. */ 281 STAILQ_HEAD(, _Dwarf_Fde) fs_fdelist; /* List of FDE. */ 282 Dwarf_Cie *fs_ciearray; /* Array of CIE. */ 283 Dwarf_Unsigned fs_cielen; /* Length of CIE array. */ 284 Dwarf_Fde *fs_fdearray; /* Array of FDE.*/ 285 Dwarf_Unsigned fs_fdelen; /* Length of FDE array. */ 286}; 287 288struct _Dwarf_Arange { 289 Dwarf_ArangeSet ar_as; /* Ptr to the set it belongs to. */ 290 Dwarf_Unsigned ar_address; /* Start PC. */ 291 Dwarf_Unsigned ar_range; /* PC range. */ 292 Dwarf_Unsigned ar_symndx; /* First symbol index for reloc. */ 293 Dwarf_Unsigned ar_esymndx; /* Second symbol index for reloc. */ 294 Dwarf_Addr ar_eoff; /* Offset from second symbol. */ 295 STAILQ_ENTRY(_Dwarf_Arange) ar_next; /* Next arange in list. */ 296}; 297 298struct _Dwarf_ArangeSet { 299 Dwarf_Unsigned as_length; /* Length of the arange set. */ 300 Dwarf_Half as_version; /* Version of the arange set. */ 301 Dwarf_Off as_cu_offset; /* Offset of associated CU. */ 302 Dwarf_CU as_cu; /* Ptr to associated CU. */ 303 Dwarf_Small as_addrsz; /* Target address size. */ 304 Dwarf_Small as_segsz; /* Target segment size. */ 305 STAILQ_HEAD (, _Dwarf_Arange) as_arlist; /* List of ae entries. */ 306 STAILQ_ENTRY(_Dwarf_ArangeSet) as_next; /* Next set in list. */ 307}; 308 309struct _Dwarf_MacroSet { 310 Dwarf_Macro_Details *ms_mdlist; /* Array of macinfo entries. */ 311 Dwarf_Unsigned ms_cnt; /* Length of the array. */ 312 STAILQ_ENTRY(_Dwarf_MacroSet) ms_next; /* Next set in list. */ 313}; 314 315struct _Dwarf_Rangelist { 316 Dwarf_CU rl_cu; /* Ptr to associated CU. */ 317 Dwarf_Unsigned rl_offset; /* Offset of the rangelist. */ 318 Dwarf_Ranges *rl_rgarray; /* Array of ranges. */ 319 Dwarf_Unsigned rl_rglen; /* Length of the ranges array. */ 320 STAILQ_ENTRY(_Dwarf_Rangelist) rl_next; /* Next rangelist in list. */ 321}; 322 323struct _Dwarf_CU { 324 Dwarf_Debug cu_dbg; /* Ptr to containing dbg. */ 325 Dwarf_Off cu_offset; /* Offset to the this CU. */ 326 uint32_t cu_length; /* Length of CU data. */ 327 uint16_t cu_length_size; /* Size in bytes of the length field. */ 328 uint16_t cu_version; /* DWARF version. */ 329 uint64_t cu_abbrev_offset; /* Offset into .debug_abbrev. */ 330 uint64_t cu_abbrev_offset_cur; /* Current abbrev offset. */ 331 int cu_abbrev_loaded; /* Abbrev table parsed. */ 332 uint64_t cu_abbrev_cnt; /* Abbrev entry count. */ 333 uint64_t cu_lineno_offset; /* Offset into .debug_lineno. */ 334 uint8_t cu_pointer_size;/* Number of bytes in pointer. */ 335 uint8_t cu_dwarf_size; /* CU section dwarf size. */ 336 Dwarf_Off cu_next_offset; /* Offset to the next CU. */ 337 uint64_t cu_1st_offset; /* First DIE offset. */ 338 int cu_pass2; /* Two pass DIE traverse. */ 339 Dwarf_LineInfo cu_lineinfo; /* Ptr to Dwarf_LineInfo. */ 340 Dwarf_Abbrev cu_abbrev_hash; /* Abbrev hash table. */ 341 STAILQ_ENTRY(_Dwarf_CU) cu_next; /* Next compilation unit. */ 342}; 343 344typedef struct _Dwarf_Section { 345 const char *ds_name; /* Section name. */ 346 Dwarf_Small *ds_data; /* Section data. */ 347 Dwarf_Unsigned ds_addr; /* Section virtual addr. */ 348 Dwarf_Unsigned ds_size; /* Section size. */ 349} Dwarf_Section; 350 351typedef struct _Dwarf_P_Section { 352 char *ds_name; /* Section name. */ 353 Dwarf_Small *ds_data; /* Section data. */ 354 Dwarf_Unsigned ds_size; /* Section size. */ 355 Dwarf_Unsigned ds_cap; /* Section capacity. */ 356 Dwarf_Unsigned ds_ndx; /* ELF section index. */ 357 Dwarf_Unsigned ds_symndx; /* Section symbol index. (for reloc) */ 358 STAILQ_ENTRY(_Dwarf_P_Section) ds_next; /* Next section in the list. */ 359} *Dwarf_P_Section; 360 361typedef struct _Dwarf_Rel_Entry { 362 unsigned char dre_type; /* Reloc type. */ 363 unsigned char dre_length; /* Reloc storage unit length. */ 364 Dwarf_Unsigned dre_offset; /* Reloc storage unit offset. */ 365 Dwarf_Unsigned dre_addend; /* Reloc addend. */ 366 Dwarf_Unsigned dre_symndx; /* Reloc symbol index. */ 367 const char *dre_secname; /* Refer to some debug section. */ 368 STAILQ_ENTRY(_Dwarf_Rel_Entry) dre_next; /* Next reloc entry. */ 369} *Dwarf_Rel_Entry; 370 371typedef struct _Dwarf_Rel_Section { 372 struct _Dwarf_P_Section *drs_ds; /* Ptr to actual reloc ELF section. */ 373 struct _Dwarf_P_Section *drs_ref; /* Which debug section it refers. */ 374 struct Dwarf_Relocation_Data_s *drs_drd; /* Reloc data array. */ 375 STAILQ_HEAD(, _Dwarf_Rel_Entry) drs_dre; /* Reloc entry list. */ 376 Dwarf_Unsigned drs_drecnt; /* Count of entries. */ 377 Dwarf_Unsigned drs_size; /* Size of ELF section in bytes. */ 378 int drs_addend; /* Elf_Rel or Elf_Rela */ 379 STAILQ_ENTRY(_Dwarf_Rel_Section) drs_next; /* Next reloc section. */ 380} *Dwarf_Rel_Section; 381 382typedef struct { 383 Elf_Data *ed_data; 384 void *ed_alloc; 385} Dwarf_Elf_Data; 386 387typedef struct { 388 Elf *eo_elf; 389 GElf_Ehdr eo_ehdr; 390 GElf_Shdr *eo_shdr; 391 Dwarf_Elf_Data *eo_data; 392 Dwarf_Unsigned eo_seccnt; 393 size_t eo_strndx; 394 Dwarf_Obj_Access_Methods eo_methods; 395} Dwarf_Elf_Object; 396 397struct _Dwarf_Debug { 398 Dwarf_Obj_Access_Interface *dbg_iface; 399 Dwarf_Section *dbg_section; /* Dwarf section list. */ 400 Dwarf_Section *dbg_info_sec; /* Pointer to info section. */ 401 Dwarf_Off dbg_info_off; /* Current info section offset. */ 402 Dwarf_Unsigned dbg_seccnt; /* Total number of dwarf sections. */ 403 int dbg_mode; /* Access mode. */ 404 int dbg_pointer_size; /* Object address size. */ 405 int dbg_offset_size; /* DWARF offset size. */ 406 int dbg_info_loaded; /* Flag indicating all CU loaded. */ 407 Dwarf_Half dbg_machine; /* ELF machine architecture. */ 408 Dwarf_Handler dbg_errhand; /* Error handler. */ 409 Dwarf_Ptr dbg_errarg; /* Argument to the error handler. */ 410 STAILQ_HEAD(, _Dwarf_CU) dbg_cu;/* List of compilation units. */ 411 Dwarf_CU dbg_cu_current; /* Ptr to the current CU. */ 412 TAILQ_HEAD(, _Dwarf_Loclist) dbg_loclist; /* List of location list. */ 413 Dwarf_NameSec dbg_globals; /* Ptr to pubnames lookup section. */ 414 Dwarf_NameSec dbg_pubtypes; /* Ptr to pubtypes lookup section. */ 415 Dwarf_NameSec dbg_weaks; /* Ptr to weaknames lookup section. */ 416 Dwarf_NameSec dbg_funcs; /* Ptr to static funcs lookup sect. */ 417 Dwarf_NameSec dbg_vars; /* Ptr to static vars lookup sect. */ 418 Dwarf_NameSec dbg_types; /* Ptr to types lookup section. */ 419 Dwarf_FrameSec dbg_frame; /* Ptr to .debug_frame section. */ 420 Dwarf_FrameSec dbg_eh_frame; /* Ptr to .eh_frame section. */ 421 STAILQ_HEAD(, _Dwarf_ArangeSet) dbg_aslist; /* List of arange set. */ 422 Dwarf_Arange *dbg_arange_array; /* Array of arange. */ 423 Dwarf_Unsigned dbg_arange_cnt; /* Length of the arange array. */ 424 char *dbg_strtab; /* Dwarf string table. */ 425 Dwarf_Unsigned dbg_strtab_cap; /* Dwarf string table capacity. */ 426 Dwarf_Unsigned dbg_strtab_size; /* Dwarf string table size. */ 427 STAILQ_HEAD(, _Dwarf_MacroSet) dbg_mslist; /* List of macro set. */ 428 STAILQ_HEAD(, _Dwarf_Rangelist) dbg_rllist; /* List of rangelist. */ 429 uint64_t (*read)(uint8_t *, uint64_t *, int); 430 void (*write)(uint8_t *, uint64_t *, uint64_t, int); 431 int (*write_alloc)(uint8_t **, uint64_t *, uint64_t *, 432 uint64_t, int, Dwarf_Error *); 433 uint64_t (*decode)(uint8_t **, int); 434 435 Dwarf_Half dbg_frame_rule_table_size; 436 Dwarf_Half dbg_frame_rule_initial_value; 437 Dwarf_Half dbg_frame_cfa_value; 438 Dwarf_Half dbg_frame_same_value; 439 Dwarf_Half dbg_frame_undefined_value; 440 441 Dwarf_Regtable3 *dbg_internal_reg_table; 442 443 /* 444 * Fields used by libdwarf producer. 445 */ 446 447 Dwarf_Unsigned dbgp_flags; 448 Dwarf_Unsigned dbgp_isa; 449 Dwarf_Callback_Func dbgp_func; 450 Dwarf_Callback_Func_b dbgp_func_b; 451 Dwarf_Die dbgp_root_die; 452 STAILQ_HEAD(, _Dwarf_Die) dbgp_dielist; 453 STAILQ_HEAD(, _Dwarf_P_Expr) dbgp_pelist; 454 Dwarf_LineInfo dbgp_lineinfo; 455 Dwarf_ArangeSet dbgp_as; 456 Dwarf_Macro_Details *dbgp_mdlist; 457 Dwarf_Unsigned dbgp_mdcnt; 458 STAILQ_HEAD(, _Dwarf_Cie) dbgp_cielist; 459 STAILQ_HEAD(, _Dwarf_Fde) dbgp_fdelist; 460 Dwarf_Unsigned dbgp_cielen; 461 Dwarf_Unsigned dbgp_fdelen; 462 Dwarf_NameTbl dbgp_pubs; 463 Dwarf_NameTbl dbgp_weaks; 464 Dwarf_NameTbl dbgp_funcs; 465 Dwarf_NameTbl dbgp_types; 466 Dwarf_NameTbl dbgp_vars; 467 STAILQ_HEAD(, _Dwarf_P_Section) dbgp_seclist; 468 Dwarf_Unsigned dbgp_seccnt; 469 Dwarf_P_Section dbgp_secpos; 470 Dwarf_P_Section dbgp_info; 471 STAILQ_HEAD(, _Dwarf_Rel_Section) dbgp_drslist; 472 Dwarf_Unsigned dbgp_drscnt; 473 Dwarf_Rel_Section dbgp_drspos; 474}; 475 476/* 477 * Internal function prototypes. 478 */ 479 480int _dwarf_abbrev_add(Dwarf_CU, uint64_t, uint64_t, uint8_t, 481 uint64_t, Dwarf_Abbrev *, Dwarf_Error *); 482void _dwarf_abbrev_cleanup(Dwarf_CU); 483int _dwarf_abbrev_find(Dwarf_CU, uint64_t, Dwarf_Abbrev *, 484 Dwarf_Error *); 485int _dwarf_abbrev_gen(Dwarf_P_Debug, Dwarf_Error *); 486int _dwarf_abbrev_parse(Dwarf_Debug, Dwarf_CU, Dwarf_Unsigned *, 487 Dwarf_Abbrev *, Dwarf_Error *); 488int _dwarf_add_AT_dataref(Dwarf_P_Debug, Dwarf_P_Die, Dwarf_Half, 489 Dwarf_Unsigned, Dwarf_Unsigned, const char *, 490 Dwarf_P_Attribute *, Dwarf_Error *); 491int _dwarf_add_string_attr(Dwarf_P_Die, Dwarf_P_Attribute *, 492 Dwarf_Half, char *, Dwarf_Error *); 493int _dwarf_alloc(Dwarf_Debug *, int, Dwarf_Error *); 494void _dwarf_arange_cleanup(Dwarf_Debug); 495int _dwarf_arange_gen(Dwarf_P_Debug, Dwarf_Error *); 496int _dwarf_arange_init(Dwarf_Debug, Dwarf_Error *); 497void _dwarf_arange_pro_cleanup(Dwarf_P_Debug); 498int _dwarf_attr_alloc(Dwarf_Die, Dwarf_Attribute *, Dwarf_Error *); 499Dwarf_Attribute _dwarf_attr_find(Dwarf_Die, Dwarf_Half); 500int _dwarf_attr_gen(Dwarf_P_Debug, Dwarf_P_Section, Dwarf_Rel_Section, 501 Dwarf_CU, Dwarf_Die, int, Dwarf_Error *); 502int _dwarf_attr_init(Dwarf_Debug, Dwarf_Section *, uint64_t *, int, 503 Dwarf_CU, Dwarf_Die, Dwarf_AttrDef, uint64_t, int, 504 Dwarf_Error *); 505int _dwarf_attrdef_add(Dwarf_Debug, Dwarf_Abbrev, uint64_t, 506 uint64_t, uint64_t, Dwarf_AttrDef *, Dwarf_Error *); 507uint64_t _dwarf_decode_lsb(uint8_t **, int); 508uint64_t _dwarf_decode_msb(uint8_t **, int); 509int64_t _dwarf_decode_sleb128(uint8_t **); 510uint64_t _dwarf_decode_uleb128(uint8_t **); 511void _dwarf_deinit(Dwarf_Debug); 512int _dwarf_die_alloc(Dwarf_Debug, Dwarf_Die *, Dwarf_Error *); 513int _dwarf_die_count_links(Dwarf_P_Die, Dwarf_P_Die, 514 Dwarf_P_Die, Dwarf_P_Die); 515Dwarf_Die _dwarf_die_find(Dwarf_Die, Dwarf_Unsigned); 516int _dwarf_die_gen(Dwarf_P_Debug, Dwarf_CU, Dwarf_Rel_Section, 517 Dwarf_Error *); 518void _dwarf_die_link(Dwarf_P_Die, Dwarf_P_Die, Dwarf_P_Die, 519 Dwarf_P_Die, Dwarf_P_Die); 520int _dwarf_die_parse(Dwarf_Debug, Dwarf_Section *, Dwarf_CU, int, 521 uint64_t, uint64_t, Dwarf_Die *, int, Dwarf_Error *); 522void _dwarf_die_pro_cleanup(Dwarf_P_Debug); 523void _dwarf_elf_deinit(Dwarf_Debug); 524int _dwarf_elf_init(Dwarf_Debug, Elf *, Dwarf_Error *); 525int _dwarf_elf_load_section(void *, Dwarf_Half, Dwarf_Small **, 526 int *); 527Dwarf_Endianness _dwarf_elf_get_byte_order(void *); 528Dwarf_Small _dwarf_elf_get_length_size(void *); 529Dwarf_Small _dwarf_elf_get_pointer_size(void *); 530Dwarf_Unsigned _dwarf_elf_get_section_count(void *); 531int _dwarf_elf_get_section_info(void *, Dwarf_Half, 532 Dwarf_Obj_Access_Section *, int *); 533void _dwarf_expr_cleanup(Dwarf_P_Debug); 534int _dwarf_expr_into_block(Dwarf_P_Expr, Dwarf_Error *); 535Dwarf_Section *_dwarf_find_section(Dwarf_Debug, const char *); 536void _dwarf_frame_cleanup(Dwarf_Debug); 537int _dwarf_frame_fde_add_inst(Dwarf_P_Fde, Dwarf_Small, 538 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Error *); 539int _dwarf_frame_gen(Dwarf_P_Debug, Dwarf_Error *); 540int _dwarf_frame_get_fop(Dwarf_Debug, uint8_t *, Dwarf_Unsigned, 541 Dwarf_Frame_Op **, Dwarf_Signed *, Dwarf_Error *); 542int _dwarf_frame_get_internal_table(Dwarf_Fde, Dwarf_Addr, 543 Dwarf_Regtable3 **, Dwarf_Addr *, Dwarf_Error *); 544int _dwarf_frame_interal_table_init(Dwarf_Debug, Dwarf_Error *); 545void _dwarf_frame_params_init(Dwarf_Debug); 546void _dwarf_frame_pro_cleanup(Dwarf_P_Debug); 547int _dwarf_frame_regtable_copy(Dwarf_Debug, Dwarf_Regtable3 **, 548 Dwarf_Regtable3 *, Dwarf_Error *); 549int _dwarf_frame_section_load(Dwarf_Debug, Dwarf_Error *); 550int _dwarf_frame_section_load_eh(Dwarf_Debug, Dwarf_Error *); 551int _dwarf_generate_sections(Dwarf_P_Debug, Dwarf_Error *); 552Dwarf_Unsigned _dwarf_get_reloc_type(Dwarf_P_Debug, int); 553int _dwarf_get_reloc_size(Dwarf_Debug, Dwarf_Unsigned); 554void _dwarf_info_cleanup(Dwarf_Debug); 555int _dwarf_info_first_cu(Dwarf_Debug, Dwarf_Error *); 556int _dwarf_info_gen(Dwarf_P_Debug, Dwarf_Error *); 557int _dwarf_info_load(Dwarf_Debug, int, Dwarf_Error *); 558int _dwarf_info_next_cu(Dwarf_Debug, Dwarf_Error *); 559void _dwarf_info_pro_cleanup(Dwarf_P_Debug); 560int _dwarf_init(Dwarf_Debug, Dwarf_Unsigned, Dwarf_Handler, 561 Dwarf_Ptr, Dwarf_Error *); 562int _dwarf_lineno_gen(Dwarf_P_Debug, Dwarf_Error *); 563int _dwarf_lineno_init(Dwarf_Die, uint64_t, Dwarf_Error *); 564void _dwarf_lineno_cleanup(Dwarf_LineInfo); 565void _dwarf_lineno_pro_cleanup(Dwarf_P_Debug); 566int _dwarf_loc_fill_locdesc(Dwarf_Debug, Dwarf_Locdesc *, uint8_t *, 567 uint64_t, uint8_t, Dwarf_Error *); 568int _dwarf_loc_fill_locexpr(Dwarf_Debug, Dwarf_Locdesc **, 569 uint8_t *, uint64_t, uint8_t, Dwarf_Error *); 570int _dwarf_loc_add(Dwarf_Die, Dwarf_Attribute, Dwarf_Error *); 571int _dwarf_loc_expr_add_atom(Dwarf_Debug, uint8_t *, uint8_t *, 572 Dwarf_Small, Dwarf_Unsigned, Dwarf_Unsigned, int *, 573 Dwarf_Error *); 574int _dwarf_loclist_find(Dwarf_Debug, Dwarf_CU, uint64_t, 575 Dwarf_Loclist *, Dwarf_Error *); 576void _dwarf_loclist_cleanup(Dwarf_Debug); 577void _dwarf_loclist_free(Dwarf_Loclist); 578int _dwarf_loclist_add(Dwarf_Debug, Dwarf_CU, uint64_t, 579 Dwarf_Loclist *, Dwarf_Error *); 580void _dwarf_macinfo_cleanup(Dwarf_Debug); 581int _dwarf_macinfo_gen(Dwarf_P_Debug, Dwarf_Error *); 582int _dwarf_macinfo_init(Dwarf_Debug, Dwarf_Error *); 583void _dwarf_macinfo_pro_cleanup(Dwarf_P_Debug); 584int _dwarf_nametbl_init(Dwarf_Debug, Dwarf_NameSec *, 585 Dwarf_Section *, Dwarf_Error *); 586void _dwarf_nametbl_cleanup(Dwarf_NameSec *); 587int _dwarf_nametbl_gen(Dwarf_P_Debug, const char *, Dwarf_NameTbl, 588 Dwarf_Error *); 589void _dwarf_nametbl_pro_cleanup(Dwarf_NameTbl *); 590int _dwarf_pro_callback(Dwarf_P_Debug, char *, int, Dwarf_Unsigned, 591 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 592 Dwarf_Unsigned *, int *); 593Dwarf_P_Section _dwarf_pro_find_section(Dwarf_P_Debug, const char *); 594int _dwarf_ranges_add(Dwarf_Debug, Dwarf_CU, uint64_t, 595 Dwarf_Rangelist *, Dwarf_Error *); 596void _dwarf_ranges_cleanup(Dwarf_Debug); 597int _dwarf_ranges_find(Dwarf_Debug, uint64_t, Dwarf_Rangelist *); 598uint64_t _dwarf_read_lsb(uint8_t *, uint64_t *, int); 599uint64_t _dwarf_read_msb(uint8_t *, uint64_t *, int); 600int64_t _dwarf_read_sleb128(uint8_t *, uint64_t *); 601uint64_t _dwarf_read_uleb128(uint8_t *, uint64_t *); 602char *_dwarf_read_string(void *, Dwarf_Unsigned, uint64_t *); 603uint8_t *_dwarf_read_block(void *, uint64_t *, uint64_t); 604int _dwarf_reloc_section_finalize(Dwarf_P_Debug, Dwarf_Rel_Section, 605 Dwarf_Error *); 606int _dwarf_reloc_entry_add(Dwarf_P_Debug, Dwarf_Rel_Section, 607 Dwarf_P_Section, unsigned char, unsigned char, 608 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 609 const char *, Dwarf_Error *); 610int _dwarf_reloc_entry_add_pair(Dwarf_P_Debug, Dwarf_Rel_Section, 611 Dwarf_P_Section, unsigned char, Dwarf_Unsigned, 612 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 613 Dwarf_Unsigned, Dwarf_Error *); 614void _dwarf_reloc_cleanup(Dwarf_P_Debug); 615int _dwarf_reloc_gen(Dwarf_P_Debug, Dwarf_Error *); 616int _dwarf_reloc_section_gen(Dwarf_P_Debug, Dwarf_Rel_Section, 617 Dwarf_Error *); 618int _dwarf_reloc_section_init(Dwarf_P_Debug, Dwarf_Rel_Section *, 619 Dwarf_P_Section, Dwarf_Error *); 620void _dwarf_reloc_section_free(Dwarf_P_Debug, Dwarf_Rel_Section *); 621void _dwarf_section_cleanup(Dwarf_P_Debug); 622int _dwarf_section_callback(Dwarf_P_Debug, Dwarf_P_Section, 623 Dwarf_Unsigned, Dwarf_Unsigned, Dwarf_Unsigned, 624 Dwarf_Unsigned, Dwarf_Error *); 625void _dwarf_section_free(Dwarf_P_Debug, Dwarf_P_Section *); 626int _dwarf_section_init(Dwarf_P_Debug, Dwarf_P_Section *, 627 const char *, int, Dwarf_Error *); 628void _dwarf_set_error(Dwarf_Debug, Dwarf_Error *, int, int, 629 const char *, int); 630int _dwarf_strtab_add(Dwarf_Debug, char *, uint64_t *, 631 Dwarf_Error *); 632void _dwarf_strtab_cleanup(Dwarf_Debug); 633int _dwarf_strtab_gen(Dwarf_P_Debug, Dwarf_Error *); 634char *_dwarf_strtab_get_table(Dwarf_Debug); 635int _dwarf_strtab_init(Dwarf_Debug, Dwarf_Error *); 636void _dwarf_write_block(void *, uint64_t *, uint8_t *, uint64_t); 637int _dwarf_write_block_alloc(uint8_t **, uint64_t *, uint64_t *, 638 uint8_t *, uint64_t, Dwarf_Error *); 639void _dwarf_write_lsb(uint8_t *, uint64_t *, uint64_t, int); 640int _dwarf_write_lsb_alloc(uint8_t **, uint64_t *, uint64_t *, 641 uint64_t, int, Dwarf_Error *); 642void _dwarf_write_msb(uint8_t *, uint64_t *, uint64_t, int); 643int _dwarf_write_msb_alloc(uint8_t **, uint64_t *, uint64_t *, 644 uint64_t, int, Dwarf_Error *); 645void _dwarf_write_padding(void *, uint64_t *, uint8_t, uint64_t); 646int _dwarf_write_padding_alloc(uint8_t **, uint64_t *, uint64_t *, 647 uint8_t, uint64_t, Dwarf_Error *); 648void _dwarf_write_string(void *, uint64_t *, char *); 649int _dwarf_write_string_alloc(uint8_t **, uint64_t *, uint64_t *, 650 char *, Dwarf_Error *); 651int _dwarf_write_sleb128(uint8_t *, uint8_t *, int64_t); 652int _dwarf_write_sleb128_alloc(uint8_t **, uint64_t *, uint64_t *, 653 int64_t, Dwarf_Error *); 654int _dwarf_write_uleb128(uint8_t *, uint8_t *, uint64_t); 655int _dwarf_write_uleb128_alloc(uint8_t **, uint64_t *, uint64_t *, 656 uint64_t, Dwarf_Error *); 657 658#endif /* !__LIBDWARF_H_ */ 659