Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Internal definitions for libdwarf. |
Mark Wielaard | df85bf9 | 2014-05-01 14:48:27 +0200 | [diff] [blame] | 2 | Copyright (C) 2002-2011, 2013, 2014 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
| 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifndef _LIBDWP_H |
| 31 | #define _LIBDWP_H 1 |
| 32 | |
| 33 | #include <libintl.h> |
| 34 | #include <stdbool.h> |
| 35 | |
| 36 | #include <libdw.h> |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 37 | #include <dwarf.h> |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 38 | |
| 39 | |
| 40 | /* gettext helper macros. */ |
| 41 | #define _(Str) dgettext ("elfutils", Str) |
| 42 | |
| 43 | |
Roland McGrath | 6724c90 | 2005-10-28 07:07:19 +0000 | [diff] [blame] | 44 | /* Known location expressions already decoded. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 45 | struct loc_s |
| 46 | { |
| 47 | void *addr; |
Roland McGrath | 6724c90 | 2005-10-28 07:07:19 +0000 | [diff] [blame] | 48 | Dwarf_Op *loc; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 49 | size_t nloc; |
| 50 | }; |
| 51 | |
Roland McGrath | f037104 | 2009-09-10 12:39:09 -0700 | [diff] [blame] | 52 | /* Known DW_OP_implicit_value blocks already decoded. |
| 53 | This overlaps struct loc_s exactly, but only the |
| 54 | first member really has to match. */ |
| 55 | struct loc_block_s |
| 56 | { |
| 57 | void *addr; |
| 58 | unsigned char *data; |
| 59 | size_t length; |
| 60 | }; |
| 61 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 62 | /* Already decoded .debug_line units. */ |
| 63 | struct files_lines_s |
| 64 | { |
| 65 | Dwarf_Off debug_line_offset; |
| 66 | Dwarf_Files *files; |
| 67 | Dwarf_Lines *lines; |
| 68 | }; |
| 69 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 70 | /* Valid indeces for the section data. */ |
| 71 | enum |
| 72 | { |
| 73 | IDX_debug_info = 0, |
Roland McGrath | 827d4d1 | 2010-06-01 20:17:36 -0700 | [diff] [blame] | 74 | IDX_debug_types, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 75 | IDX_debug_abbrev, |
| 76 | IDX_debug_aranges, |
| 77 | IDX_debug_line, |
| 78 | IDX_debug_frame, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 79 | IDX_debug_loc, |
| 80 | IDX_debug_pubnames, |
| 81 | IDX_debug_str, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 82 | IDX_debug_macinfo, |
Mark Wielaard | a0172d7 | 2012-06-25 17:18:53 +0200 | [diff] [blame] | 83 | IDX_debug_macro, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 84 | IDX_debug_ranges, |
Florian Weimer | efa72a0 | 2014-04-15 14:04:19 +0200 | [diff] [blame] | 85 | IDX_gnu_debugaltlink, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 86 | IDX_last |
| 87 | }; |
| 88 | |
| 89 | |
| 90 | /* Error values. */ |
| 91 | enum |
| 92 | { |
| 93 | DWARF_E_NOERROR = 0, |
| 94 | DWARF_E_UNKNOWN_ERROR, |
| 95 | DWARF_E_INVALID_ACCESS, |
| 96 | DWARF_E_NO_REGFILE, |
| 97 | DWARF_E_IO_ERROR, |
| 98 | DWARF_E_INVALID_ELF, |
| 99 | DWARF_E_NO_DWARF, |
| 100 | DWARF_E_NOELF, |
| 101 | DWARF_E_GETEHDR_ERROR, |
| 102 | DWARF_E_NOMEM, |
| 103 | DWARF_E_UNIMPL, |
| 104 | DWARF_E_INVALID_CMD, |
| 105 | DWARF_E_INVALID_VERSION, |
| 106 | DWARF_E_INVALID_FILE, |
| 107 | DWARF_E_NO_ENTRY, |
| 108 | DWARF_E_INVALID_DWARF, |
| 109 | DWARF_E_NO_STRING, |
| 110 | DWARF_E_NO_ADDR, |
| 111 | DWARF_E_NO_CONSTANT, |
| 112 | DWARF_E_NO_REFERENCE, |
| 113 | DWARF_E_INVALID_REFERENCE, |
| 114 | DWARF_E_NO_DEBUG_LINE, |
| 115 | DWARF_E_INVALID_DEBUG_LINE, |
| 116 | DWARF_E_TOO_BIG, |
| 117 | DWARF_E_VERSION, |
| 118 | DWARF_E_INVALID_DIR_IDX, |
| 119 | DWARF_E_ADDR_OUTOFRANGE, |
| 120 | DWARF_E_NO_LOCLIST, |
| 121 | DWARF_E_NO_BLOCK, |
| 122 | DWARF_E_INVALID_LINE_IDX, |
| 123 | DWARF_E_INVALID_ARANGE_IDX, |
| 124 | DWARF_E_NO_MATCH, |
| 125 | DWARF_E_NO_FLAG, |
| 126 | DWARF_E_INVALID_OFFSET, |
| 127 | DWARF_E_NO_DEBUG_RANGES, |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 128 | DWARF_E_INVALID_CFI, |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 129 | DWARF_E_NO_ALT_DEBUGLINK, |
| 130 | DWARF_E_INVALID_OPCODE, |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 131 | }; |
| 132 | |
| 133 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 134 | #include "dwarf_sig8_hash.h" |
| 135 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 136 | /* This is the structure representing the debugging state. */ |
| 137 | struct Dwarf |
| 138 | { |
| 139 | /* The underlying ELF file. */ |
| 140 | Elf *elf; |
| 141 | |
Mark Wielaard | 775375e | 2012-06-22 12:02:45 +0200 | [diff] [blame] | 142 | /* dwz alternate DWARF file. */ |
| 143 | Dwarf *alt_dwarf; |
| 144 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 145 | /* The section data. */ |
| 146 | Elf_Data *sectiondata[IDX_last]; |
| 147 | |
Roland McGrath | 725aad5 | 2011-02-23 19:52:46 -0800 | [diff] [blame] | 148 | #if USE_ZLIB |
| 149 | /* The 1 << N bit is set if sectiondata[N] is malloc'd decompressed data. */ |
| 150 | unsigned int sectiondata_gzip_mask:IDX_last; |
| 151 | #endif |
| 152 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 153 | /* True if the file has a byte order different from the host. */ |
| 154 | bool other_byte_order; |
| 155 | |
| 156 | /* If true, we allocated the ELF descriptor ourselves. */ |
| 157 | bool free_elf; |
| 158 | |
| 159 | /* Information for traversing the .debug_pubnames section. This is |
| 160 | an array and separately allocated with malloc. */ |
| 161 | struct pubnames_s |
| 162 | { |
| 163 | Dwarf_Off cu_offset; |
| 164 | Dwarf_Off set_start; |
| 165 | unsigned int cu_header_size; |
| 166 | int address_len; |
| 167 | } *pubnames_sets; |
| 168 | size_t pubnames_nsets; |
| 169 | |
| 170 | /* Search tree for the CUs. */ |
| 171 | void *cu_tree; |
| 172 | Dwarf_Off next_cu_offset; |
| 173 | |
Roland McGrath | 2b1f095 | 2010-06-20 17:55:50 -0700 | [diff] [blame] | 174 | /* Search tree and sig8 hash table for .debug_types type units. */ |
| 175 | void *tu_tree; |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 176 | Dwarf_Off next_tu_offset; |
Roland McGrath | 2b1f095 | 2010-06-20 17:55:50 -0700 | [diff] [blame] | 177 | Dwarf_Sig8_Hash sig8_hash; |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 178 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 179 | /* Search tree for .debug_macro operator tables. */ |
| 180 | void *macro_ops; |
| 181 | |
| 182 | /* Search tree for decoded .debug_line units. */ |
| 183 | void *files_lines; |
| 184 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 185 | /* Address ranges. */ |
| 186 | Dwarf_Aranges *aranges; |
| 187 | |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 188 | /* Cached info from the CFI section. */ |
| 189 | struct Dwarf_CFI_s *cfi; |
| 190 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 191 | /* Internal memory handling. This is basically a simplified |
| 192 | reimplementation of obstacks. Unfortunately the standard obstack |
| 193 | implementation is not usable in libraries. */ |
| 194 | struct libdw_memblock |
| 195 | { |
| 196 | size_t size; |
| 197 | size_t remaining; |
| 198 | struct libdw_memblock *prev; |
| 199 | char mem[0]; |
| 200 | } *mem_tail; |
| 201 | |
| 202 | /* Default size of allocated memory blocks. */ |
| 203 | size_t mem_default_size; |
| 204 | |
| 205 | /* Registered OOM handler. */ |
| 206 | Dwarf_OOM oom_handler; |
| 207 | }; |
| 208 | |
| 209 | |
| 210 | /* Abbreviation representation. */ |
| 211 | struct Dwarf_Abbrev |
| 212 | { |
Roland McGrath | 1f6d201 | 2008-12-31 00:21:04 -0800 | [diff] [blame] | 213 | Dwarf_Off offset; |
| 214 | unsigned char *attrp; |
| 215 | unsigned int attrcnt; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 216 | unsigned int code; |
| 217 | unsigned int tag; |
Roland McGrath | 1f6d201 | 2008-12-31 00:21:04 -0800 | [diff] [blame] | 218 | bool has_children; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 219 | }; |
| 220 | |
| 221 | #include "dwarf_abbrev_hash.h" |
| 222 | |
| 223 | |
| 224 | /* Files in line information records. */ |
| 225 | struct Dwarf_Files_s |
| 226 | { |
Roland McGrath | 43da989 | 2007-04-16 23:13:37 +0000 | [diff] [blame] | 227 | unsigned int ndirs; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 228 | unsigned int nfiles; |
| 229 | struct Dwarf_Fileinfo_s |
| 230 | { |
| 231 | char *name; |
| 232 | Dwarf_Word mtime; |
| 233 | Dwarf_Word length; |
| 234 | } info[0]; |
Roland McGrath | 43da989 | 2007-04-16 23:13:37 +0000 | [diff] [blame] | 235 | /* nfiles of those, followed by char *[ndirs]. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 236 | }; |
| 237 | typedef struct Dwarf_Fileinfo_s Dwarf_Fileinfo; |
| 238 | |
| 239 | |
| 240 | /* Representation of a row in the line table. */ |
Roland McGrath | 03288f0 | 2009-01-28 22:00:54 -0800 | [diff] [blame] | 241 | |
| 242 | struct Dwarf_Line_s |
| 243 | { |
Roland McGrath | 6e1f465 | 2009-07-08 14:48:34 -0700 | [diff] [blame] | 244 | Dwarf_Files *files; |
| 245 | |
Roland McGrath | 03288f0 | 2009-01-28 22:00:54 -0800 | [diff] [blame] | 246 | Dwarf_Addr addr; |
| 247 | unsigned int file; |
| 248 | int line; |
| 249 | unsigned short int column; |
| 250 | unsigned int is_stmt:1; |
| 251 | unsigned int basic_block:1; |
| 252 | unsigned int end_sequence:1; |
| 253 | unsigned int prologue_end:1; |
| 254 | unsigned int epilogue_begin:1; |
Roland McGrath | c70cf4e | 2010-06-18 17:01:05 -0700 | [diff] [blame] | 255 | /* The remaining bit fields are not flags, but hold values presumed to be |
| 256 | small. All the flags and other bit fields should add up to 48 bits |
| 257 | to give the whole struct a nice round size. */ |
| 258 | unsigned int op_index:8; |
| 259 | unsigned int isa:8; |
| 260 | unsigned int discriminator:24; |
Roland McGrath | 03288f0 | 2009-01-28 22:00:54 -0800 | [diff] [blame] | 261 | }; |
| 262 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 263 | struct Dwarf_Lines_s |
Roland McGrath | 03288f0 | 2009-01-28 22:00:54 -0800 | [diff] [blame] | 264 | { |
| 265 | size_t nlines; |
| 266 | struct Dwarf_Line_s info[0]; |
| 267 | }; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 268 | |
| 269 | /* Representation of address ranges. */ |
| 270 | struct Dwarf_Aranges_s |
| 271 | { |
| 272 | Dwarf *dbg; |
| 273 | size_t naranges; |
| 274 | |
| 275 | struct Dwarf_Arange_s |
| 276 | { |
| 277 | Dwarf_Addr addr; |
| 278 | Dwarf_Word length; |
| 279 | Dwarf_Off offset; |
| 280 | } info[0]; |
| 281 | }; |
| 282 | |
| 283 | |
| 284 | /* CU representation. */ |
| 285 | struct Dwarf_CU |
| 286 | { |
| 287 | Dwarf *dbg; |
| 288 | Dwarf_Off start; |
| 289 | Dwarf_Off end; |
| 290 | uint8_t address_size; |
| 291 | uint8_t offset_size; |
Roland McGrath | e4c22ea | 2007-10-23 13:07:39 +0000 | [diff] [blame] | 292 | uint16_t version; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 293 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 294 | /* Zero if this is a normal CU. Nonzero if it is a type unit. */ |
| 295 | size_t type_offset; |
| 296 | uint64_t type_sig8; |
| 297 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 298 | /* Hash table for the abbreviations. */ |
| 299 | Dwarf_Abbrev_Hash abbrev_hash; |
| 300 | /* Offset of the first abbreviation. */ |
| 301 | size_t orig_abbrev_offset; |
| 302 | /* Offset past last read abbreviation. */ |
| 303 | size_t last_abbrev_offset; |
| 304 | |
| 305 | /* The srcline information. */ |
| 306 | Dwarf_Lines *lines; |
| 307 | |
| 308 | /* The source file information. */ |
| 309 | Dwarf_Files *files; |
| 310 | |
| 311 | /* Known location lists. */ |
| 312 | void *locs; |
| 313 | }; |
| 314 | |
Ulrich Drepper | 35f08c4 | 2008-01-18 19:59:08 +0000 | [diff] [blame] | 315 | /* Compute the offset of a CU's first DIE from its offset. This |
| 316 | is either: |
| 317 | LEN VER OFFSET ADDR |
| 318 | 4-bytes + 2-bytes + 4-bytes + 1-byte for 32-bit dwarf |
| 319 | 12-bytes + 2-bytes + 8-bytes + 1-byte for 64-bit dwarf |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 320 | or in .debug_types, SIGNATURE TYPE-OFFSET |
| 321 | 4-bytes + 2-bytes + 4-bytes + 1-byte + 8-bytes + 4-bytes for 32-bit |
| 322 | 12-bytes + 2-bytes + 8-bytes + 1-byte + 8-bytes + 8-bytes for 64-bit |
Ulrich Drepper | a969d8e | 2008-01-22 06:15:00 +0000 | [diff] [blame] | 323 | |
Ulrich Drepper | 35f08c4 | 2008-01-18 19:59:08 +0000 | [diff] [blame] | 324 | Note the trick in the computation. If the offset_size is 4 |
| 325 | the '- 4' term changes the '3 *' into a '2 *'. If the |
| 326 | offset_size is 8 it accounts for the 4-byte escape value |
| 327 | used at the start of the length. */ |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 328 | #define DIE_OFFSET_FROM_CU_OFFSET(cu_offset, offset_size, type_unit) \ |
| 329 | ((type_unit) ? ((cu_offset) + 4 * (offset_size) - 4 + 3 + 8) \ |
| 330 | : ((cu_offset) + 3 * (offset_size) - 4 + 3)) |
Ulrich Drepper | 35f08c4 | 2008-01-18 19:59:08 +0000 | [diff] [blame] | 331 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 332 | #define CUDIE(fromcu) \ |
Roland McGrath | 6724c90 | 2005-10-28 07:07:19 +0000 | [diff] [blame] | 333 | ((Dwarf_Die) \ |
| 334 | { \ |
| 335 | .cu = (fromcu), \ |
Roland McGrath | 5cc030d | 2010-06-20 17:25:35 -0700 | [diff] [blame] | 336 | .addr = ((char *) cu_data (fromcu)->d_buf \ |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 337 | + DIE_OFFSET_FROM_CU_OFFSET ((fromcu)->start, \ |
| 338 | (fromcu)->offset_size, \ |
| 339 | (fromcu)->type_offset != 0)) \ |
| 340 | }) \ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 341 | |
| 342 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 343 | /* Prototype of a single .debug_macro operator. */ |
| 344 | typedef struct |
| 345 | { |
| 346 | Dwarf_Word nforms; |
| 347 | unsigned char const *forms; |
| 348 | } Dwarf_Macro_Op_Proto; |
| 349 | |
| 350 | /* Prototype table. */ |
| 351 | typedef struct |
| 352 | { |
| 353 | /* Offset of .debug_macro section. */ |
| 354 | Dwarf_Off offset; |
| 355 | |
| 356 | /* Offset of associated .debug_line section. */ |
| 357 | Dwarf_Off line_offset; |
| 358 | |
| 359 | /* The source file information. */ |
| 360 | Dwarf_Files *files; |
| 361 | |
| 362 | /* If this macro unit was opened through dwarf_getmacros or |
| 363 | dwarf_getmacros_die, this caches value of DW_AT_comp_dir, if |
| 364 | present. */ |
| 365 | const char *comp_dir; |
| 366 | |
| 367 | /* Header length. */ |
| 368 | Dwarf_Half header_len; |
| 369 | |
| 370 | uint16_t version; |
| 371 | bool is_64bit; |
| 372 | uint8_t sec_index; /* IDX_debug_macro or IDX_debug_macinfo. */ |
| 373 | |
| 374 | /* Shows where in TABLE each opcode is defined. Since opcode 0 is |
| 375 | never used, it stores index of opcode X in X-1'th element. The |
| 376 | value of 0xff means not stored at all. */ |
| 377 | unsigned char opcodes[255]; |
| 378 | |
| 379 | /* Individual opcode prototypes. */ |
| 380 | Dwarf_Macro_Op_Proto table[]; |
| 381 | } Dwarf_Macro_Op_Table; |
| 382 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 383 | struct Dwarf_Macro_s |
| 384 | { |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 385 | Dwarf_Macro_Op_Table *table; |
| 386 | Dwarf_Attribute *attributes; |
| 387 | uint8_t opcode; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 388 | }; |
| 389 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 390 | static inline Dwarf_Word |
| 391 | libdw_macro_nforms (Dwarf_Macro *macro) |
| 392 | { |
| 393 | return macro->table->table[macro->table->opcodes[macro->opcode - 1]].nforms; |
| 394 | } |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 395 | |
| 396 | /* We have to include the file at this point because the inline |
| 397 | functions access internals of the Dwarf structure. */ |
| 398 | #include "memory-access.h" |
| 399 | |
| 400 | |
| 401 | /* Set error value. */ |
| 402 | extern void __libdw_seterrno (int value) internal_function; |
| 403 | |
| 404 | |
| 405 | /* Memory handling, the easy parts. This macro does not do any locking. */ |
Ulrich Drepper | db1d543 | 2006-10-10 15:34:34 +0000 | [diff] [blame] | 406 | #define libdw_alloc(dbg, type, tsize, cnt) \ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 407 | ({ struct libdw_memblock *_tail = (dbg)->mem_tail; \ |
| 408 | size_t _required = (tsize) * (cnt); \ |
| 409 | type *_result = (type *) (_tail->mem + (_tail->size - _tail->remaining));\ |
| 410 | size_t _padding = ((__alignof (type) \ |
| 411 | - ((uintptr_t) _result & (__alignof (type) - 1))) \ |
| 412 | & (__alignof (type) - 1)); \ |
| 413 | if (unlikely (_tail->remaining < _required + _padding)) \ |
Roland McGrath | c373d85 | 2006-10-10 00:25:21 +0000 | [diff] [blame] | 414 | _result = (type *) __libdw_allocate (dbg, _required, __alignof (type));\ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 415 | else \ |
| 416 | { \ |
| 417 | _required += _padding; \ |
| 418 | _result = (type *) ((char *) _result + _padding); \ |
Roland McGrath | c373d85 | 2006-10-10 00:25:21 +0000 | [diff] [blame] | 419 | _tail->remaining -= _required; \ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 420 | } \ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 421 | _result; }) |
| 422 | |
| 423 | #define libdw_typed_alloc(dbg, type) \ |
| 424 | libdw_alloc (dbg, type, sizeof (type), 1) |
| 425 | |
| 426 | /* Callback to allocate more. */ |
Roland McGrath | c373d85 | 2006-10-10 00:25:21 +0000 | [diff] [blame] | 427 | extern void *__libdw_allocate (Dwarf *dbg, size_t minsize, size_t align) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 428 | __attribute__ ((__malloc__)) __nonnull_attribute__ (1); |
| 429 | |
| 430 | /* Default OOM handler. */ |
| 431 | extern void __libdw_oom (void) __attribute ((noreturn, visibility ("hidden"))); |
| 432 | |
Roland McGrath | 725aad5 | 2011-02-23 19:52:46 -0800 | [diff] [blame] | 433 | #if USE_ZLIB |
| 434 | extern void __libdw_free_zdata (Dwarf *dwarf) internal_function; |
| 435 | #else |
| 436 | # define __libdw_free_zdata(dwarf) ((void) (dwarf)) |
| 437 | #endif |
| 438 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 439 | /* Allocate the internal data for a unit not seen before. */ |
| 440 | extern struct Dwarf_CU *__libdw_intern_next_unit (Dwarf *dbg, bool debug_types) |
| 441 | __nonnull_attribute__ (1) internal_function; |
| 442 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 443 | /* Find CU for given offset. */ |
Roland McGrath | 2b1f095 | 2010-06-20 17:55:50 -0700 | [diff] [blame] | 444 | extern struct Dwarf_CU *__libdw_findcu (Dwarf *dbg, Dwarf_Off offset, bool tu) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 445 | __nonnull_attribute__ (1) internal_function; |
| 446 | |
Josh Stone | b849f81 | 2014-12-10 18:28:04 -0800 | [diff] [blame^] | 447 | /* Get abbreviation with given code. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 448 | extern Dwarf_Abbrev *__libdw_findabbrev (struct Dwarf_CU *cu, |
| 449 | unsigned int code) |
| 450 | __nonnull_attribute__ (1) internal_function; |
| 451 | |
| 452 | /* Get abbreviation at given offset. */ |
| 453 | extern Dwarf_Abbrev *__libdw_getabbrev (Dwarf *dbg, struct Dwarf_CU *cu, |
| 454 | Dwarf_Off offset, size_t *lengthp, |
| 455 | Dwarf_Abbrev *result) |
| 456 | __nonnull_attribute__ (1) internal_function; |
| 457 | |
Josh Stone | b849f81 | 2014-12-10 18:28:04 -0800 | [diff] [blame^] | 458 | /* Get abbreviation of given DIE, and optionally set *READP to the DIE memory |
| 459 | just past the abbreviation code. */ |
| 460 | static inline Dwarf_Abbrev * |
| 461 | __nonnull_attribute__ (1) |
| 462 | __libdw_dieabbrev (Dwarf_Die *die, const unsigned char **readp) |
| 463 | { |
| 464 | /* Do we need to get the abbreviation, or need to read after the code? */ |
| 465 | if (die->abbrev == NULL || readp != NULL) |
| 466 | { |
| 467 | /* Get the abbreviation code. */ |
| 468 | unsigned int code; |
| 469 | const unsigned char *addr = die->addr; |
| 470 | get_uleb128 (code, addr); |
| 471 | if (readp != NULL) |
| 472 | *readp = addr; |
| 473 | |
| 474 | /* Find the abbreviation. */ |
| 475 | if (die->abbrev == NULL) |
| 476 | die->abbrev = __libdw_findabbrev (die->cu, code); |
| 477 | } |
| 478 | return die->abbrev; |
| 479 | } |
| 480 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 481 | /* Helper functions for form handling. */ |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 482 | extern size_t __libdw_form_val_compute_len (Dwarf *dbg, struct Dwarf_CU *cu, |
| 483 | unsigned int form, |
Mark Wielaard | cb73b5a | 2014-12-04 21:43:44 +0100 | [diff] [blame] | 484 | const unsigned char *valp, |
| 485 | const unsigned char *endp) |
| 486 | __nonnull_attribute__ (1, 2, 4, 5) internal_function; |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 487 | |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 488 | /* Find the length of a form attribute. */ |
| 489 | static inline size_t |
Mark Wielaard | cb73b5a | 2014-12-04 21:43:44 +0100 | [diff] [blame] | 490 | __nonnull_attribute__ (1, 2, 4, 5) |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 491 | __libdw_form_val_len (Dwarf *dbg, struct Dwarf_CU *cu, |
Mark Wielaard | cb73b5a | 2014-12-04 21:43:44 +0100 | [diff] [blame] | 492 | unsigned int form, const unsigned char *valp, |
| 493 | const unsigned char *endp) |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 494 | { |
| 495 | /* Small lookup table of forms with fixed lengths. Absent indexes are |
| 496 | initialized 0, so any truly desired 0 is set to 0x80 and masked. */ |
| 497 | static const uint8_t form_lengths[] = |
| 498 | { |
| 499 | [DW_FORM_flag_present] = 0x80, |
| 500 | [DW_FORM_data1] = 1, [DW_FORM_ref1] = 1, [DW_FORM_flag] = 1, |
| 501 | [DW_FORM_data2] = 2, [DW_FORM_ref2] = 2, |
| 502 | [DW_FORM_data4] = 4, [DW_FORM_ref4] = 4, |
| 503 | [DW_FORM_data8] = 8, [DW_FORM_ref8] = 8, [DW_FORM_ref_sig8] = 8, |
| 504 | }; |
| 505 | |
| 506 | /* Return immediately for forms with fixed lengths. */ |
| 507 | if (form < sizeof form_lengths / sizeof form_lengths[0]) |
| 508 | { |
| 509 | uint8_t len = form_lengths[form]; |
| 510 | if (len != 0) |
Mark Wielaard | cb73b5a | 2014-12-04 21:43:44 +0100 | [diff] [blame] | 511 | { |
| 512 | len &= 0x7f; /* Mask to allow 0x80 -> 0. */ |
| 513 | if (unlikely (len > (size_t) (endp - valp))) |
| 514 | { |
| 515 | __libdw_seterrno (DWARF_E_INVALID_DWARF); |
| 516 | return -1; |
| 517 | } |
| 518 | return len; |
| 519 | } |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | /* Other forms require some computation. */ |
Mark Wielaard | cb73b5a | 2014-12-04 21:43:44 +0100 | [diff] [blame] | 523 | return __libdw_form_val_compute_len (dbg, cu, form, valp, endp); |
Josh Stone | c0d2a0b | 2013-12-09 13:52:10 -0800 | [diff] [blame] | 524 | } |
| 525 | |
Roland McGrath | e4c22ea | 2007-10-23 13:07:39 +0000 | [diff] [blame] | 526 | /* Helper function for DW_FORM_ref* handling. */ |
| 527 | extern int __libdw_formref (Dwarf_Attribute *attr, Dwarf_Off *return_offset) |
| 528 | __nonnull_attribute__ (1, 2) internal_function; |
| 529 | |
| 530 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 531 | /* Helper function to locate attribute. */ |
| 532 | extern unsigned char *__libdw_find_attr (Dwarf_Die *die, |
| 533 | unsigned int search_name, |
| 534 | unsigned int *codep, |
| 535 | unsigned int *formp) |
| 536 | __nonnull_attribute__ (1) internal_function; |
| 537 | |
| 538 | /* Helper function to access integer attribute. */ |
Roland McGrath | 6724c90 | 2005-10-28 07:07:19 +0000 | [diff] [blame] | 539 | extern int __libdw_attr_intval (Dwarf_Die *die, int *valp, int attval) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 540 | __nonnull_attribute__ (1, 2) internal_function; |
| 541 | |
Roland McGrath | 1ecb606 | 2005-08-15 09:53:04 +0000 | [diff] [blame] | 542 | /* Helper function to walk scopes. */ |
Roland McGrath | 71e15a0 | 2005-08-27 10:33:26 +0000 | [diff] [blame] | 543 | struct Dwarf_Die_Chain |
| 544 | { |
| 545 | Dwarf_Die die; |
| 546 | struct Dwarf_Die_Chain *parent; |
| 547 | bool prune; /* The PREVISIT function can set this. */ |
| 548 | }; |
| 549 | extern int __libdw_visit_scopes (unsigned int depth, |
| 550 | struct Dwarf_Die_Chain *root, |
| 551 | int (*previsit) (unsigned int depth, |
| 552 | struct Dwarf_Die_Chain *, |
| 553 | void *arg), |
| 554 | int (*postvisit) (unsigned int depth, |
| 555 | struct Dwarf_Die_Chain *, |
| 556 | void *arg), |
Roland McGrath | 1ecb606 | 2005-08-15 09:53:04 +0000 | [diff] [blame] | 557 | void *arg) |
| 558 | __nonnull_attribute__ (2, 3) internal_function; |
| 559 | |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 560 | /* Parse a DWARF Dwarf_Block into an array of Dwarf_Op's, |
| 561 | and cache the result (via tsearch). */ |
| 562 | extern int __libdw_intern_expression (Dwarf *dbg, |
| 563 | bool other_byte_order, |
| 564 | unsigned int address_size, |
Roland McGrath | 688f7fc | 2010-05-08 03:22:59 -0700 | [diff] [blame] | 565 | unsigned int ref_size, |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 566 | void **cache, const Dwarf_Block *block, |
Roland McGrath | 0ab9783 | 2010-04-26 11:50:27 -0700 | [diff] [blame] | 567 | bool cfap, bool valuep, |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 568 | Dwarf_Op **llbuf, size_t *listlen, |
| 569 | int sec_index) |
Roland McGrath | 688f7fc | 2010-05-08 03:22:59 -0700 | [diff] [blame] | 570 | __nonnull_attribute__ (5, 6, 9, 10) internal_function; |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 571 | |
Roland McGrath | 932585d | 2010-05-08 04:01:14 -0700 | [diff] [blame] | 572 | extern Dwarf_Die *__libdw_offdie (Dwarf *dbg, Dwarf_Off offset, |
| 573 | Dwarf_Die *result, bool debug_types) |
| 574 | internal_function; |
| 575 | |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 576 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 577 | /* Return error code of last failing function call. This value is kept |
| 578 | separately for each thread. */ |
| 579 | extern int __dwarf_errno_internal (void); |
| 580 | |
| 581 | |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 582 | /* Reader hooks. */ |
| 583 | |
| 584 | /* Relocation hooks return -1 on error (in that case the error code |
| 585 | must already have been set), 0 if there is no relocation and 1 if a |
| 586 | relocation was present.*/ |
| 587 | |
| 588 | static inline int |
| 589 | __libdw_relocate_address (Dwarf *dbg __attribute__ ((unused)), |
| 590 | int sec_index __attribute__ ((unused)), |
| 591 | const void *addr __attribute__ ((unused)), |
| 592 | int width __attribute__ ((unused)), |
| 593 | Dwarf_Addr *val __attribute__ ((unused))) |
| 594 | { |
| 595 | return 0; |
| 596 | } |
| 597 | |
| 598 | static inline int |
| 599 | __libdw_relocate_offset (Dwarf *dbg __attribute__ ((unused)), |
| 600 | int sec_index __attribute__ ((unused)), |
| 601 | const void *addr __attribute__ ((unused)), |
| 602 | int width __attribute__ ((unused)), |
| 603 | Dwarf_Off *val __attribute__ ((unused))) |
| 604 | { |
| 605 | return 0; |
| 606 | } |
| 607 | |
| 608 | static inline Elf_Data * |
| 609 | __libdw_checked_get_data (Dwarf *dbg, int sec_index) |
| 610 | { |
| 611 | Elf_Data *data = dbg->sectiondata[sec_index]; |
| 612 | if (unlikely (data == NULL) |
| 613 | || unlikely (data->d_buf == NULL)) |
| 614 | { |
| 615 | __libdw_seterrno (DWARF_E_INVALID_DWARF); |
| 616 | return NULL; |
| 617 | } |
| 618 | return data; |
| 619 | } |
| 620 | |
| 621 | static inline int |
| 622 | __libdw_offset_in_section (Dwarf *dbg, int sec_index, |
| 623 | Dwarf_Off offset, size_t size) |
| 624 | { |
| 625 | Elf_Data *data = __libdw_checked_get_data (dbg, sec_index); |
| 626 | if (data == NULL) |
| 627 | return -1; |
| 628 | if (unlikely (offset > data->d_size) |
| 629 | || unlikely (data->d_size - offset < size)) |
| 630 | { |
| 631 | __libdw_seterrno (DWARF_E_INVALID_OFFSET); |
| 632 | return -1; |
| 633 | } |
| 634 | |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | static inline bool |
| 639 | __libdw_in_section (Dwarf *dbg, int sec_index, |
| 640 | const void *addr, size_t size) |
| 641 | { |
| 642 | Elf_Data *data = __libdw_checked_get_data (dbg, sec_index); |
| 643 | if (data == NULL) |
| 644 | return false; |
| 645 | if (unlikely (addr < data->d_buf) |
| 646 | || unlikely (data->d_size - (addr - data->d_buf) < size)) |
| 647 | { |
| 648 | __libdw_seterrno (DWARF_E_INVALID_OFFSET); |
| 649 | return false; |
| 650 | } |
| 651 | |
| 652 | return true; |
| 653 | } |
| 654 | |
| 655 | #define READ_AND_RELOCATE(RELOC_HOOK, VAL) \ |
| 656 | ({ \ |
| 657 | if (!__libdw_in_section (dbg, sec_index, addr, width)) \ |
| 658 | return -1; \ |
| 659 | \ |
| 660 | const unsigned char *orig_addr = addr; \ |
| 661 | if (width == 4) \ |
| 662 | VAL = read_4ubyte_unaligned_inc (dbg, addr); \ |
| 663 | else \ |
| 664 | VAL = read_8ubyte_unaligned_inc (dbg, addr); \ |
| 665 | \ |
| 666 | int status = RELOC_HOOK (dbg, sec_index, orig_addr, width, &VAL); \ |
| 667 | if (status < 0) \ |
| 668 | return status; \ |
| 669 | status > 0; \ |
| 670 | }) |
| 671 | |
| 672 | static inline int |
| 673 | __libdw_read_address_inc (Dwarf *dbg, |
Roland McGrath | 05c4e04 | 2009-06-18 13:56:02 -0700 | [diff] [blame] | 674 | int sec_index, const unsigned char **addrp, |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 675 | int width, Dwarf_Addr *ret) |
| 676 | { |
Roland McGrath | 05c4e04 | 2009-06-18 13:56:02 -0700 | [diff] [blame] | 677 | const unsigned char *addr = *addrp; |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 678 | READ_AND_RELOCATE (__libdw_relocate_address, (*ret)); |
| 679 | *addrp = addr; |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | static inline int |
| 684 | __libdw_read_address (Dwarf *dbg, |
| 685 | int sec_index, const unsigned char *addr, |
| 686 | int width, Dwarf_Addr *ret) |
| 687 | { |
| 688 | READ_AND_RELOCATE (__libdw_relocate_address, (*ret)); |
| 689 | return 0; |
| 690 | } |
| 691 | |
| 692 | static inline int |
| 693 | __libdw_read_offset_inc (Dwarf *dbg, |
Roland McGrath | 05c4e04 | 2009-06-18 13:56:02 -0700 | [diff] [blame] | 694 | int sec_index, const unsigned char **addrp, |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 695 | int width, Dwarf_Off *ret, int sec_ret, |
| 696 | size_t size) |
| 697 | { |
Roland McGrath | 05c4e04 | 2009-06-18 13:56:02 -0700 | [diff] [blame] | 698 | const unsigned char *addr = *addrp; |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 699 | READ_AND_RELOCATE (__libdw_relocate_offset, (*ret)); |
| 700 | *addrp = addr; |
| 701 | return __libdw_offset_in_section (dbg, sec_ret, *ret, size); |
| 702 | } |
| 703 | |
| 704 | static inline int |
Mark Wielaard | 775375e | 2012-06-22 12:02:45 +0200 | [diff] [blame] | 705 | __libdw_read_offset (Dwarf *dbg, Dwarf *dbg_ret, |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 706 | int sec_index, const unsigned char *addr, |
| 707 | int width, Dwarf_Off *ret, int sec_ret, |
| 708 | size_t size) |
| 709 | { |
| 710 | READ_AND_RELOCATE (__libdw_relocate_offset, (*ret)); |
Mark Wielaard | 775375e | 2012-06-22 12:02:45 +0200 | [diff] [blame] | 711 | return __libdw_offset_in_section (dbg_ret, sec_ret, *ret, size); |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 712 | } |
| 713 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 714 | static inline size_t |
| 715 | cu_sec_idx (struct Dwarf_CU *cu) |
| 716 | { |
| 717 | return cu->type_offset == 0 ? IDX_debug_info : IDX_debug_types; |
| 718 | } |
| 719 | |
| 720 | static inline Elf_Data * |
| 721 | cu_data (struct Dwarf_CU *cu) |
| 722 | { |
| 723 | return cu->dbg->sectiondata[cu_sec_idx (cu)]; |
| 724 | } |
| 725 | |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 726 | /* Read up begin/end pair and increment read pointer. |
| 727 | - If it's normal range record, set up *BEGINP and *ENDP and return 0. |
| 728 | - If it's base address selection record, set up *BASEP and return 1. |
| 729 | - If it's end of rangelist, don't set anything and return 2 |
| 730 | - If an error occurs, don't set anything and return <0. */ |
| 731 | int __libdw_read_begin_end_pair_inc (Dwarf *dbg, int sec_index, |
| 732 | unsigned char **addr, int width, |
| 733 | Dwarf_Addr *beginp, Dwarf_Addr *endp, |
| 734 | Dwarf_Addr *basep) |
| 735 | internal_function; |
| 736 | |
| 737 | unsigned char * __libdw_formptr (Dwarf_Attribute *attr, int sec_index, |
| 738 | int err_nodata, unsigned char **endpp, |
| 739 | Dwarf_Off *offsetp) |
| 740 | internal_function; |
| 741 | |
Mark Wielaard | 3951f2e | 2013-12-09 16:33:26 +0100 | [diff] [blame] | 742 | /* Fills in the given attribute to point at an empty location expression. */ |
| 743 | void __libdw_empty_loc_attr (Dwarf_Attribute *attr, struct Dwarf_CU *cu) |
| 744 | internal_function; |
| 745 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 746 | /* Load .debug_line unit at DEBUG_LINE_OFFSET. COMP_DIR is a value of |
| 747 | DW_AT_comp_dir or NULL if that attribute is not available. Caches |
| 748 | the loaded unit and optionally set *LINESP and/or *FILESP (if not |
| 749 | NULL) with loaded information. Returns 0 for success or a negative |
| 750 | value for failure. */ |
| 751 | int __libdw_getsrclines (Dwarf *dbg, Dwarf_Off debug_line_offset, |
| 752 | const char *comp_dir, unsigned address_size, |
| 753 | Dwarf_Lines **linesp, Dwarf_Files **filesp) |
| 754 | internal_function |
| 755 | __nonnull_attribute__ (1); |
| 756 | |
| 757 | /* Load and return value of DW_AT_comp_dir from CUDIE. */ |
| 758 | const char *__libdw_getcompdir (Dwarf_Die *cudie); |
| 759 | |
Ulrich Drepper | 99d2372 | 2009-06-14 20:19:45 -0700 | [diff] [blame] | 760 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 761 | /* Aliases to avoid PLTs. */ |
Roland McGrath | ebc5c88 | 2010-01-05 22:53:31 -0800 | [diff] [blame] | 762 | INTDECL (dwarf_aggregate_size) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 763 | INTDECL (dwarf_attr) |
| 764 | INTDECL (dwarf_attr_integrate) |
Mark Wielaard | 775375e | 2012-06-22 12:02:45 +0200 | [diff] [blame] | 765 | INTDECL (dwarf_begin) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 766 | INTDECL (dwarf_begin_elf) |
| 767 | INTDECL (dwarf_child) |
| 768 | INTDECL (dwarf_dieoffset) |
Roland McGrath | 71e15a0 | 2005-08-27 10:33:26 +0000 | [diff] [blame] | 769 | INTDECL (dwarf_diename) |
Roland McGrath | 4959bf8 | 2005-08-09 10:31:08 +0000 | [diff] [blame] | 770 | INTDECL (dwarf_end) |
Roland McGrath | 07d4f2f | 2005-10-28 06:56:24 +0000 | [diff] [blame] | 771 | INTDECL (dwarf_entrypc) |
Roland McGrath | 4959bf8 | 2005-08-09 10:31:08 +0000 | [diff] [blame] | 772 | INTDECL (dwarf_errmsg) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 773 | INTDECL (dwarf_formaddr) |
| 774 | INTDECL (dwarf_formblock) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 775 | INTDECL (dwarf_formref_die) |
| 776 | INTDECL (dwarf_formsdata) |
| 777 | INTDECL (dwarf_formstring) |
| 778 | INTDECL (dwarf_formudata) |
Florian Weimer | 35e2a76 | 2014-04-15 14:31:55 +0200 | [diff] [blame] | 779 | INTDECL (dwarf_getalt) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 780 | INTDECL (dwarf_getarange_addr) |
| 781 | INTDECL (dwarf_getarangeinfo) |
| 782 | INTDECL (dwarf_getaranges) |
Mark Wielaard | b2535b6 | 2013-08-30 23:55:12 +0200 | [diff] [blame] | 783 | INTDECL (dwarf_getlocation_die) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 784 | INTDECL (dwarf_getsrcfiles) |
| 785 | INTDECL (dwarf_getsrclines) |
| 786 | INTDECL (dwarf_hasattr) |
| 787 | INTDECL (dwarf_haschildren) |
| 788 | INTDECL (dwarf_haspc) |
| 789 | INTDECL (dwarf_highpc) |
| 790 | INTDECL (dwarf_lowpc) |
| 791 | INTDECL (dwarf_nextcu) |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 792 | INTDECL (dwarf_next_unit) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 793 | INTDECL (dwarf_offdie) |
Mark Wielaard | 3a36e8a | 2014-10-06 22:00:16 +0200 | [diff] [blame] | 794 | INTDECL (dwarf_peel_type) |
Roland McGrath | 07d4f2f | 2005-10-28 06:56:24 +0000 | [diff] [blame] | 795 | INTDECL (dwarf_ranges) |
Florian Weimer | 35e2a76 | 2014-04-15 14:31:55 +0200 | [diff] [blame] | 796 | INTDECL (dwarf_setalt) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 797 | INTDECL (dwarf_siblingof) |
Roland McGrath | ebc5c88 | 2010-01-05 22:53:31 -0800 | [diff] [blame] | 798 | INTDECL (dwarf_srclang) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 799 | INTDECL (dwarf_tag) |
| 800 | |
| 801 | #endif /* libdwP.h */ |