Line data Source code
1 : /* Interfaces for libdw.
2 : Copyright (C) 2002-2010, 2013, 2014, 2016 Red Hat, Inc.
3 : This file is part of elfutils.
4 :
5 : This file is free software; you can redistribute it and/or modify
6 : it under the terms of either
7 :
8 : * the GNU Lesser General Public License as published by the Free
9 : Software Foundation; either version 3 of the License, or (at
10 : your option) any later version
11 :
12 : or
13 :
14 : * the GNU General Public License as published by the Free
15 : Software Foundation; either version 2 of the License, or (at
16 : your option) any later version
17 :
18 : or both in parallel, as here.
19 :
20 : elfutils is distributed in the hope that it will be useful, but
21 : WITHOUT ANY WARRANTY; without even the implied warranty of
22 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 : General Public License for more details.
24 :
25 : You should have received copies of the GNU General Public License and
26 : the GNU Lesser General Public License along with this program. If
27 : not, see <http://www.gnu.org/licenses/>. */
28 :
29 : #ifndef _LIBDW_H
30 : #define _LIBDW_H 1
31 :
32 : #include <gelf.h>
33 : #include <stdbool.h>
34 : #include <stddef.h>
35 : #include <stdint.h>
36 :
37 : /* Mode for the session. */
38 : typedef enum
39 : {
40 : DWARF_C_READ, /* Read .. */
41 : DWARF_C_RDWR, /* Read and write .. */
42 : DWARF_C_WRITE, /* Write .. */
43 : }
44 : Dwarf_Cmd;
45 :
46 :
47 : /* Callback results. */
48 : enum
49 : {
50 : DWARF_CB_OK = 0,
51 : DWARF_CB_ABORT
52 : };
53 :
54 :
55 : /* Error values. */
56 : enum
57 : {
58 : DW_TAG_invalid = 0
59 : #define DW_TAG_invalid DW_TAG_invalid
60 : };
61 :
62 :
63 : /* Type for offset in DWARF file. */
64 : typedef GElf_Off Dwarf_Off;
65 :
66 : /* Type for address in DWARF file. */
67 : typedef GElf_Addr Dwarf_Addr;
68 :
69 : /* Integer types. Big enough to hold any numeric value. */
70 : typedef GElf_Xword Dwarf_Word;
71 : typedef GElf_Sxword Dwarf_Sword;
72 : /* For the times we know we do not need that much. */
73 : typedef GElf_Half Dwarf_Half;
74 :
75 :
76 : /* DWARF abbreviation record. */
77 : typedef struct Dwarf_Abbrev Dwarf_Abbrev;
78 :
79 : /* Returned to show the last DIE has be returned. */
80 : #define DWARF_END_ABBREV ((Dwarf_Abbrev *) -1l)
81 :
82 : /* Source code line information for CU. */
83 : typedef struct Dwarf_Lines_s Dwarf_Lines;
84 :
85 : /* One source code line information. */
86 : typedef struct Dwarf_Line_s Dwarf_Line;
87 :
88 : /* Source file information. */
89 : typedef struct Dwarf_Files_s Dwarf_Files;
90 :
91 : /* One address range record. */
92 : typedef struct Dwarf_Arange_s Dwarf_Arange;
93 :
94 : /* Address ranges of a file. */
95 : typedef struct Dwarf_Aranges_s Dwarf_Aranges;
96 :
97 : /* CU representation. */
98 : struct Dwarf_CU;
99 : typedef struct Dwarf_CU Dwarf_CU;
100 :
101 : /* Macro information. */
102 : typedef struct Dwarf_Macro_s Dwarf_Macro;
103 :
104 : /* Attribute representation. */
105 : typedef struct
106 : {
107 : unsigned int code;
108 : unsigned int form;
109 : unsigned char *valp;
110 : struct Dwarf_CU *cu;
111 : } Dwarf_Attribute;
112 :
113 :
114 : /* Data block representation. */
115 : typedef struct
116 : {
117 : Dwarf_Word length;
118 : unsigned char *data;
119 : } Dwarf_Block;
120 :
121 :
122 : /* DIE information. */
123 : typedef struct
124 : {
125 : /* The offset can be computed from the address. */
126 : void *addr;
127 : struct Dwarf_CU *cu;
128 : Dwarf_Abbrev *abbrev;
129 : // XXX We'll see what other information will be needed.
130 : long int padding__;
131 : } Dwarf_Die;
132 :
133 : /* Returned to show the last DIE has be returned. */
134 : #define DWARF_END_DIE ((Dwarf_Die *) -1l)
135 :
136 :
137 : /* Global symbol information. */
138 : typedef struct
139 : {
140 : Dwarf_Off cu_offset;
141 : Dwarf_Off die_offset;
142 : const char *name;
143 : } Dwarf_Global;
144 :
145 :
146 : /* One operation in a DWARF location expression.
147 : A location expression is an array of these. */
148 : typedef struct
149 : {
150 : uint8_t atom; /* Operation */
151 : Dwarf_Word number; /* Operand */
152 : Dwarf_Word number2; /* Possible second operand */
153 : Dwarf_Word offset; /* Offset in location expression */
154 : } Dwarf_Op;
155 :
156 :
157 : /* This describes one Common Information Entry read from a CFI section.
158 : Pointers here point into the DATA->d_buf block passed to dwarf_next_cfi. */
159 : typedef struct
160 : {
161 : Dwarf_Off CIE_id; /* Always DW_CIE_ID_64 in Dwarf_CIE structures. */
162 :
163 : /* Instruction stream describing initial state used by FDEs. If
164 : we did not understand the whole augmentation string and it did
165 : not use 'z', then there might be more augmentation data here
166 : (and in FDEs) before the actual instructions. */
167 : const uint8_t *initial_instructions;
168 : const uint8_t *initial_instructions_end;
169 :
170 : Dwarf_Word code_alignment_factor;
171 : Dwarf_Sword data_alignment_factor;
172 : Dwarf_Word return_address_register;
173 :
174 : const char *augmentation; /* Augmentation string. */
175 :
176 : /* Augmentation data, might be NULL. The size is correct only if
177 : we understood the augmentation string sufficiently. */
178 : const uint8_t *augmentation_data;
179 : size_t augmentation_data_size;
180 : size_t fde_augmentation_data_size;
181 : } Dwarf_CIE;
182 :
183 : /* This describes one Frame Description Entry read from a CFI section.
184 : Pointers here point into the DATA->d_buf block passed to dwarf_next_cfi. */
185 : typedef struct
186 : {
187 : /* Section offset of CIE this FDE refers to. This will never be
188 : DW_CIE_ID_64 in an FDE. If this value is DW_CIE_ID_64, this is
189 : actually a Dwarf_CIE structure. */
190 : Dwarf_Off CIE_pointer;
191 :
192 : /* We can't really decode anything further without looking up the CIE
193 : and checking its augmentation string. Here follows the encoded
194 : initial_location and address_range, then any augmentation data,
195 : then the instruction stream. This FDE describes PC locations in
196 : the byte range [initial_location, initial_location+address_range).
197 : When the CIE augmentation string uses 'z', the augmentation data is
198 : a DW_FORM_block (self-sized). Otherwise, when we understand the
199 : augmentation string completely, fde_augmentation_data_size gives
200 : the number of bytes of augmentation data before the instructions. */
201 : const uint8_t *start;
202 : const uint8_t *end;
203 : } Dwarf_FDE;
204 :
205 : /* Each entry in a CFI section is either a CIE described by Dwarf_CIE or
206 : an FDE described by Dward_FDE. Check CIE_id to see which you have. */
207 : typedef union
208 : {
209 : Dwarf_Off CIE_id; /* Always DW_CIE_ID_64 in Dwarf_CIE structures. */
210 : Dwarf_CIE cie;
211 : Dwarf_FDE fde;
212 : } Dwarf_CFI_Entry;
213 :
214 : #define dwarf_cfi_cie_p(entry) ((entry)->cie.CIE_id == DW_CIE_ID_64)
215 :
216 : /* Opaque type representing a frame state described by CFI. */
217 : typedef struct Dwarf_Frame_s Dwarf_Frame;
218 :
219 : /* Opaque type representing a CFI section found in a DWARF or ELF file. */
220 : typedef struct Dwarf_CFI_s Dwarf_CFI;
221 :
222 :
223 : /* Handle for debug sessions. */
224 : typedef struct Dwarf Dwarf;
225 :
226 :
227 : /* Out-Of-Memory handler. */
228 : typedef void (*__noreturn_attribute__ Dwarf_OOM) (void);
229 :
230 :
231 : #ifdef __cplusplus
232 : extern "C" {
233 : #endif
234 :
235 : /* Create a handle for a new debug session. */
236 : extern Dwarf *dwarf_begin (int fildes, Dwarf_Cmd cmd);
237 :
238 : /* Create a handle for a new debug session for an ELF file. */
239 : extern Dwarf *dwarf_begin_elf (Elf *elf, Dwarf_Cmd cmd, Elf_Scn *scngrp);
240 :
241 : /* Retrieve ELF descriptor used for DWARF access. */
242 : extern Elf *dwarf_getelf (Dwarf *dwarf);
243 :
244 : /* Retieve DWARF descriptor used for a Dwarf_Die or Dwarf_Attribute.
245 : A Dwarf_Die or a Dwarf_Attribute is associated with a particular
246 : Dwarf_CU handle. This function returns the DWARF descriptor for
247 : that Dwarf_CU. */
248 : extern Dwarf *dwarf_cu_getdwarf (Dwarf_CU *cu);
249 :
250 : /* Retrieves the DWARF descriptor for debugaltlink data. Returns NULL
251 : if no alternate debug data has been supplied. */
252 : extern Dwarf *dwarf_getalt (Dwarf *main);
253 :
254 : /* Provides the data referenced by the .gnu_debugaltlink section. The
255 : caller should check that MAIN and ALT match (i.e., they have the
256 : same build ID). It is the responsibility of the caller to ensure
257 : that the data referenced by ALT stays valid while it is used by
258 : MAIN, until dwarf_setalt is called on MAIN with a different
259 : descriptor, or dwarf_end. */
260 : extern void dwarf_setalt (Dwarf *main, Dwarf *alt);
261 :
262 : /* Release debugging handling context. */
263 : extern int dwarf_end (Dwarf *dwarf);
264 :
265 :
266 : /* Get the data block for the .debug_info section. */
267 : extern Elf_Data *dwarf_getscn_info (Dwarf *dwarf);
268 :
269 : /* Read the header for the DWARF CU. */
270 : extern int dwarf_nextcu (Dwarf *dwarf, Dwarf_Off off, Dwarf_Off *next_off,
271 : size_t *header_sizep, Dwarf_Off *abbrev_offsetp,
272 : uint8_t *address_sizep, uint8_t *offset_sizep)
273 : __nonnull_attribute__ (3);
274 :
275 : /* Read the header of a DWARF CU or type unit. If TYPE_SIGNATUREP is not
276 : null, this reads a type unit from the .debug_types section; otherwise
277 : this reads a CU from the .debug_info section. */
278 : extern int dwarf_next_unit (Dwarf *dwarf, Dwarf_Off off, Dwarf_Off *next_off,
279 : size_t *header_sizep, Dwarf_Half *versionp,
280 : Dwarf_Off *abbrev_offsetp,
281 : uint8_t *address_sizep, uint8_t *offset_sizep,
282 : uint64_t *type_signaturep, Dwarf_Off *type_offsetp)
283 : __nonnull_attribute__ (3);
284 :
285 :
286 : /* Decode one DWARF CFI entry (CIE or FDE) from the raw section data.
287 : The E_IDENT from the originating ELF file indicates the address
288 : size and byte order used in the CFI section contained in DATA;
289 : EH_FRAME_P should be true for .eh_frame format and false for
290 : .debug_frame format. OFFSET is the byte position in the section
291 : to start at; on return *NEXT_OFFSET is filled in with the byte
292 : position immediately after this entry.
293 :
294 : On success, returns 0 and fills in *ENTRY; use dwarf_cfi_cie_p to
295 : see whether ENTRY->cie or ENTRY->fde is valid.
296 :
297 : On errors, returns -1. Some format errors will permit safely
298 : skipping to the next CFI entry though the current one is unusable.
299 : In that case, *NEXT_OFF will be updated before a -1 return.
300 :
301 : If there are no more CFI entries left in the section,
302 : returns 1 and sets *NEXT_OFFSET to (Dwarf_Off) -1. */
303 : extern int dwarf_next_cfi (const unsigned char e_ident[],
304 : Elf_Data *data, bool eh_frame_p,
305 : Dwarf_Off offset, Dwarf_Off *next_offset,
306 : Dwarf_CFI_Entry *entry)
307 : __nonnull_attribute__ (1, 2, 5, 6);
308 :
309 : /* Use the CFI in the DWARF .debug_frame section.
310 : Returns NULL if there is no such section (not an error).
311 : The pointer returned can be used until dwarf_end is called on DWARF,
312 : and must not be passed to dwarf_cfi_end.
313 : Calling this more than once returns the same pointer. */
314 : extern Dwarf_CFI *dwarf_getcfi (Dwarf *dwarf);
315 :
316 : /* Use the CFI in the ELF file's exception-handling data.
317 : Returns NULL if there is no such data.
318 : The pointer returned can be used until elf_end is called on ELF,
319 : and must be passed to dwarf_cfi_end before then.
320 : Calling this more than once allocates independent data structures. */
321 : extern Dwarf_CFI *dwarf_getcfi_elf (Elf *elf);
322 :
323 : /* Release resources allocated by dwarf_getcfi_elf. */
324 : extern int dwarf_cfi_end (Dwarf_CFI *cache);
325 :
326 :
327 : /* Return DIE at given offset in .debug_info section. */
328 : extern Dwarf_Die *dwarf_offdie (Dwarf *dbg, Dwarf_Off offset,
329 : Dwarf_Die *result) __nonnull_attribute__ (3);
330 :
331 : /* Return DIE at given offset in .debug_types section. */
332 : extern Dwarf_Die *dwarf_offdie_types (Dwarf *dbg, Dwarf_Off offset,
333 : Dwarf_Die *result)
334 : __nonnull_attribute__ (3);
335 :
336 : /* Return offset of DIE. */
337 : extern Dwarf_Off dwarf_dieoffset (Dwarf_Die *die);
338 :
339 : /* Return offset of DIE in CU. */
340 : extern Dwarf_Off dwarf_cuoffset (Dwarf_Die *die);
341 :
342 : /* Return CU DIE containing given DIE. */
343 : extern Dwarf_Die *dwarf_diecu (Dwarf_Die *die, Dwarf_Die *result,
344 : uint8_t *address_sizep, uint8_t *offset_sizep)
345 : __nonnull_attribute__ (2);
346 :
347 : /* Return the CU DIE and the header info associated with a Dwarf_Die
348 : or Dwarf_Attribute. A Dwarf_Die or a Dwarf_Attribute is associated
349 : with a particular Dwarf_CU handle. This function returns the CU or
350 : type unit DIE and header information for that Dwarf_CU. The
351 : returned DIE is either a compile_unit, partial_unit or type_unit.
352 : If it is a type_unit, then the type signature and type offset are
353 : also provided, otherwise type_offset will be set to zero. See also
354 : dwarf_diecu and dwarf_next_unit. */
355 : extern Dwarf_Die *dwarf_cu_die (Dwarf_CU *cu, Dwarf_Die *result,
356 : Dwarf_Half *versionp,
357 : Dwarf_Off *abbrev_offsetp,
358 : uint8_t *address_sizep,
359 : uint8_t *offset_sizep,
360 : uint64_t *type_signaturep,
361 : Dwarf_Off *type_offsetp)
362 : __nonnull_attribute__ (2);
363 :
364 : /* Return CU DIE containing given address. */
365 : extern Dwarf_Die *dwarf_addrdie (Dwarf *dbg, Dwarf_Addr addr,
366 : Dwarf_Die *result) __nonnull_attribute__ (3);
367 :
368 : /* Return child of current DIE. */
369 : extern int dwarf_child (Dwarf_Die *die, Dwarf_Die *result)
370 : __nonnull_attribute__ (2);
371 :
372 : /* Locates the first sibling of DIE and places it in RESULT.
373 : Returns 0 if a sibling was found, -1 if something went wrong.
374 : Returns 1 if no sibling could be found and, if RESULT is not
375 : the same as DIE, it sets RESULT->addr to the address of the
376 : (non-sibling) DIE that follows this one, or NULL if this DIE
377 : was the last one in the compilation unit. */
378 : extern int dwarf_siblingof (Dwarf_Die *die, Dwarf_Die *result)
379 : __nonnull_attribute__ (2);
380 :
381 : /* For type aliases and qualifier type DIEs, which don't modify or
382 : change the structural layout of the underlying type, follow the
383 : DW_AT_type attribute (recursively) and return the underlying type
384 : Dwarf_Die.
385 :
386 : Returns 0 when RESULT contains a Dwarf_Die (possibly equal to the
387 : given DIE) that isn't a type alias or qualifier type. Returns 1
388 : when RESULT contains a type alias or qualifier Dwarf_Die that
389 : couldn't be peeled further (it doesn't have a DW_TAG_type
390 : attribute). Returns -1 when an error occured.
391 :
392 : The current DWARF specification defines one type alias tag
393 : (DW_TAG_typedef) and seven modifier/qualifier type tags
394 : (DW_TAG_const_type, DW_TAG_volatile_type, DW_TAG_restrict_type,
395 : DW_TAG_atomic_type, DW_TAG_immutable_type, DW_TAG_packed_type and
396 : DW_TAG_shared_type). This function won't peel modifier type
397 : tags that change the way the underlying type is accessed such
398 : as the pointer or reference type tags (DW_TAG_pointer_type,
399 : DW_TAG_reference_type or DW_TAG_rvalue_reference_type).
400 :
401 : A future version of this function might peel other alias or
402 : qualifier type tags if a future DWARF version or GNU extension
403 : defines other type aliases or qualifier type tags that don't modify,
404 : change the structural layout or the way to access the underlying type. */
405 : extern int dwarf_peel_type (Dwarf_Die *die, Dwarf_Die *result)
406 : __nonnull_attribute__ (2);
407 :
408 : /* Check whether the DIE has children. */
409 : extern int dwarf_haschildren (Dwarf_Die *die) __nonnull_attribute__ (1);
410 :
411 : /* Walks the attributes of DIE, starting at the one OFFSET bytes in,
412 : calling the CALLBACK function for each one. Stops if the callback
413 : function ever returns a value other than DWARF_CB_OK and returns the
414 : offset of the offending attribute. If the end of the attributes
415 : is reached 1 is returned. If something goes wrong -1 is returned and
416 : the dwarf error number is set. */
417 : extern ptrdiff_t dwarf_getattrs (Dwarf_Die *die,
418 : int (*callback) (Dwarf_Attribute *, void *),
419 : void *arg, ptrdiff_t offset)
420 : __nonnull_attribute__ (2);
421 :
422 : /* Return tag of given DIE. */
423 : extern int dwarf_tag (Dwarf_Die *die) __nonnull_attribute__ (1);
424 :
425 :
426 : /* Return specific attribute of DIE. */
427 : extern Dwarf_Attribute *dwarf_attr (Dwarf_Die *die, unsigned int search_name,
428 : Dwarf_Attribute *result)
429 : __nonnull_attribute__ (3);
430 :
431 : /* Check whether given DIE has specific attribute. */
432 : extern int dwarf_hasattr (Dwarf_Die *die, unsigned int search_name);
433 :
434 : /* These are the same as dwarf_attr and dwarf_hasattr, respectively,
435 : but they resolve an indirect attribute through DW_AT_abstract_origin. */
436 : extern Dwarf_Attribute *dwarf_attr_integrate (Dwarf_Die *die,
437 : unsigned int search_name,
438 : Dwarf_Attribute *result)
439 : __nonnull_attribute__ (3);
440 : extern int dwarf_hasattr_integrate (Dwarf_Die *die, unsigned int search_name);
441 :
442 :
443 :
444 :
445 : /* Check whether given attribute has specific form. */
446 : extern int dwarf_hasform (Dwarf_Attribute *attr, unsigned int search_form);
447 :
448 : /* Return attribute code of given attribute. */
449 : extern unsigned int dwarf_whatattr (Dwarf_Attribute *attr);
450 :
451 : /* Return form code of given attribute. */
452 : extern unsigned int dwarf_whatform (Dwarf_Attribute *attr);
453 :
454 :
455 : /* Return string associated with given attribute. */
456 : extern const char *dwarf_formstring (Dwarf_Attribute *attrp);
457 :
458 : /* Return unsigned constant represented by attribute. */
459 : extern int dwarf_formudata (Dwarf_Attribute *attr, Dwarf_Word *return_uval)
460 : __nonnull_attribute__ (2);
461 :
462 : /* Return signed constant represented by attribute. */
463 : extern int dwarf_formsdata (Dwarf_Attribute *attr, Dwarf_Sword *return_uval)
464 : __nonnull_attribute__ (2);
465 :
466 : /* Return address represented by attribute. */
467 : extern int dwarf_formaddr (Dwarf_Attribute *attr, Dwarf_Addr *return_addr)
468 : __nonnull_attribute__ (2);
469 :
470 : /* This function is deprecated. Always use dwarf_formref_die instead.
471 : Return reference offset represented by attribute. */
472 : extern int dwarf_formref (Dwarf_Attribute *attr, Dwarf_Off *return_offset)
473 : __nonnull_attribute__ (2) __deprecated_attribute__;
474 :
475 : /* Look up the DIE in a reference-form attribute. */
476 : extern Dwarf_Die *dwarf_formref_die (Dwarf_Attribute *attr, Dwarf_Die *die_mem)
477 : __nonnull_attribute__ (2);
478 :
479 : /* Return block represented by attribute. */
480 : extern int dwarf_formblock (Dwarf_Attribute *attr, Dwarf_Block *return_block)
481 : __nonnull_attribute__ (2);
482 :
483 : /* Return flag represented by attribute. */
484 : extern int dwarf_formflag (Dwarf_Attribute *attr, bool *return_bool)
485 : __nonnull_attribute__ (2);
486 :
487 :
488 : /* Simplified attribute value access functions. */
489 :
490 : /* Return string in name attribute of DIE. */
491 : extern const char *dwarf_diename (Dwarf_Die *die);
492 :
493 : /* Return high PC attribute of DIE. */
494 : extern int dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr)
495 : __nonnull_attribute__ (2);
496 :
497 : /* Return low PC attribute of DIE. */
498 : extern int dwarf_lowpc (Dwarf_Die *die, Dwarf_Addr *return_addr)
499 : __nonnull_attribute__ (2);
500 :
501 : /* Return entry_pc or low_pc attribute of DIE. */
502 : extern int dwarf_entrypc (Dwarf_Die *die, Dwarf_Addr *return_addr)
503 : __nonnull_attribute__ (2);
504 :
505 : /* Return 1 if DIE's lowpc/highpc or ranges attributes match the PC address,
506 : 0 if not, or -1 for errors. */
507 : extern int dwarf_haspc (Dwarf_Die *die, Dwarf_Addr pc);
508 :
509 : /* Enumerate the PC address ranges covered by this DIE, covering all
510 : addresses where dwarf_haspc returns true. In the first call OFFSET
511 : should be zero and *BASEP need not be initialized. Returns -1 for
512 : errors, zero when there are no more address ranges to report, or a
513 : nonzero OFFSET value to pass to the next call. Each subsequent call
514 : must preserve *BASEP from the prior call. Successful calls fill in
515 : *STARTP and *ENDP with a contiguous address range. */
516 : extern ptrdiff_t dwarf_ranges (Dwarf_Die *die,
517 : ptrdiff_t offset, Dwarf_Addr *basep,
518 : Dwarf_Addr *startp, Dwarf_Addr *endp);
519 :
520 :
521 : /* Return byte size attribute of DIE. */
522 : extern int dwarf_bytesize (Dwarf_Die *die);
523 :
524 : /* Return bit size attribute of DIE. */
525 : extern int dwarf_bitsize (Dwarf_Die *die);
526 :
527 : /* Return bit offset attribute of DIE. */
528 : extern int dwarf_bitoffset (Dwarf_Die *die);
529 :
530 : /* Return array order attribute of DIE. */
531 : extern int dwarf_arrayorder (Dwarf_Die *die);
532 :
533 : /* Return source language attribute of DIE. */
534 : extern int dwarf_srclang (Dwarf_Die *die);
535 :
536 :
537 : /* Get abbreviation at given offset for given DIE. */
538 : extern Dwarf_Abbrev *dwarf_getabbrev (Dwarf_Die *die, Dwarf_Off offset,
539 : size_t *lengthp);
540 :
541 : /* Get abbreviation at given offset in .debug_abbrev section. */
542 : extern int dwarf_offabbrev (Dwarf *dbg, Dwarf_Off offset, size_t *lengthp,
543 : Dwarf_Abbrev *abbrevp)
544 : __nonnull_attribute__ (4);
545 :
546 : /* Get abbreviation code. */
547 : extern unsigned int dwarf_getabbrevcode (Dwarf_Abbrev *abbrev);
548 :
549 : /* Get abbreviation tag. */
550 : extern unsigned int dwarf_getabbrevtag (Dwarf_Abbrev *abbrev);
551 :
552 : /* Return true if abbreviation is children flag set. */
553 : extern int dwarf_abbrevhaschildren (Dwarf_Abbrev *abbrev);
554 :
555 : /* Get number of attributes of abbreviation. */
556 : extern int dwarf_getattrcnt (Dwarf_Abbrev *abbrev, size_t *attrcntp)
557 : __nonnull_attribute__ (2);
558 :
559 : /* Get specific attribute of abbreviation. */
560 : extern int dwarf_getabbrevattr (Dwarf_Abbrev *abbrev, size_t idx,
561 : unsigned int *namep, unsigned int *formp,
562 : Dwarf_Off *offset);
563 :
564 :
565 : /* Get string from-debug_str section. */
566 : extern const char *dwarf_getstring (Dwarf *dbg, Dwarf_Off offset,
567 : size_t *lenp);
568 :
569 :
570 : /* Get public symbol information. */
571 : extern ptrdiff_t dwarf_getpubnames (Dwarf *dbg,
572 : int (*callback) (Dwarf *, Dwarf_Global *,
573 : void *),
574 : void *arg, ptrdiff_t offset)
575 : __nonnull_attribute__ (2);
576 :
577 :
578 : /* Get source file information for CU. */
579 : extern int dwarf_getsrclines (Dwarf_Die *cudie, Dwarf_Lines **lines,
580 : size_t *nlines) __nonnull_attribute__ (2, 3);
581 :
582 : /* Return one of the source lines of the CU. */
583 : extern Dwarf_Line *dwarf_onesrcline (Dwarf_Lines *lines, size_t idx);
584 :
585 : /* Get the file source files used in the CU. */
586 : extern int dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files,
587 : size_t *nfiles)
588 : __nonnull_attribute__ (2);
589 :
590 :
591 : /* Get source for address in CU. */
592 : extern Dwarf_Line *dwarf_getsrc_die (Dwarf_Die *cudie, Dwarf_Addr addr);
593 :
594 : /* Get source for file and line number. */
595 : extern int dwarf_getsrc_file (Dwarf *dbg, const char *fname, int line, int col,
596 : Dwarf_Line ***srcsp, size_t *nsrcs)
597 : __nonnull_attribute__ (2, 5, 6);
598 :
599 :
600 : /* Return line address. */
601 : extern int dwarf_lineaddr (Dwarf_Line *line, Dwarf_Addr *addrp);
602 :
603 : /* Return line VLIW operation index. */
604 : extern int dwarf_lineop_index (Dwarf_Line *line, unsigned int *op_indexp);
605 :
606 : /* Return line number. */
607 : extern int dwarf_lineno (Dwarf_Line *line, int *linep)
608 : __nonnull_attribute__ (2);
609 :
610 : /* Return column in line. */
611 : extern int dwarf_linecol (Dwarf_Line *line, int *colp)
612 : __nonnull_attribute__ (2);
613 :
614 : /* Return true if record is for beginning of a statement. */
615 : extern int dwarf_linebeginstatement (Dwarf_Line *line, bool *flagp)
616 : __nonnull_attribute__ (2);
617 :
618 : /* Return true if record is for end of sequence. */
619 : extern int dwarf_lineendsequence (Dwarf_Line *line, bool *flagp)
620 : __nonnull_attribute__ (2);
621 :
622 : /* Return true if record is for beginning of a basic block. */
623 : extern int dwarf_lineblock (Dwarf_Line *line, bool *flagp)
624 : __nonnull_attribute__ (2);
625 :
626 : /* Return true if record is for end of prologue. */
627 : extern int dwarf_lineprologueend (Dwarf_Line *line, bool *flagp)
628 : __nonnull_attribute__ (2);
629 :
630 : /* Return true if record is for beginning of epilogue. */
631 : extern int dwarf_lineepiloguebegin (Dwarf_Line *line, bool *flagp)
632 : __nonnull_attribute__ (2);
633 :
634 : /* Return instruction-set architecture in this record. */
635 : extern int dwarf_lineisa (Dwarf_Line *line, unsigned int *isap)
636 : __nonnull_attribute__ (2);
637 :
638 : /* Return code path discriminator in this record. */
639 : extern int dwarf_linediscriminator (Dwarf_Line *line, unsigned int *discp)
640 : __nonnull_attribute__ (2);
641 :
642 :
643 : /* Find line information for address. */
644 : extern const char *dwarf_linesrc (Dwarf_Line *line,
645 : Dwarf_Word *mtime, Dwarf_Word *length);
646 :
647 : /* Return file information. */
648 : extern const char *dwarf_filesrc (Dwarf_Files *file, size_t idx,
649 : Dwarf_Word *mtime, Dwarf_Word *length);
650 :
651 : /* Return the Dwarf_Files and index associated with the given Dwarf_Line. */
652 : extern int dwarf_line_file (Dwarf_Line *line,
653 : Dwarf_Files **files, size_t *idx)
654 : __nonnull_attribute__ (2, 3);
655 :
656 : /* Return the directory list used in the file information extracted.
657 : (*RESULT)[0] is the CU's DW_AT_comp_dir value, and may be null.
658 : (*RESULT)[0..*NDIRS-1] are the compile-time include directory path
659 : encoded by the compiler. */
660 : extern int dwarf_getsrcdirs (Dwarf_Files *files,
661 : const char *const **result, size_t *ndirs)
662 : __nonnull_attribute__ (2, 3);
663 :
664 :
665 : /* Return location expression, decoded as a list of operations. */
666 : extern int dwarf_getlocation (Dwarf_Attribute *attr, Dwarf_Op **expr,
667 : size_t *exprlen) __nonnull_attribute__ (2, 3);
668 :
669 : /* Return location expressions. If the attribute uses a location list,
670 : ADDRESS selects the relevant location expressions from the list.
671 : There can be multiple matches, resulting in multiple expressions to
672 : return. EXPRS and EXPRLENS are parallel arrays of NLOCS slots to
673 : fill in. Returns the number of locations filled in, or -1 for
674 : errors. If EXPRS is a null pointer, stores nothing and returns the
675 : total number of locations. A return value of zero means that the
676 : location list indicated no value is accessible. */
677 : extern int dwarf_getlocation_addr (Dwarf_Attribute *attr, Dwarf_Addr address,
678 : Dwarf_Op **exprs, size_t *exprlens,
679 : size_t nlocs);
680 :
681 : /* Enumerate the locations ranges and descriptions covered by the
682 : given attribute. In the first call OFFSET should be zero and
683 : *BASEP need not be initialized. Returns -1 for errors, zero when
684 : there are no more locations to report, or a nonzero OFFSET
685 : value to pass to the next call. Each subsequent call must preserve
686 : *BASEP from the prior call. Successful calls fill in *STARTP and
687 : *ENDP with a contiguous address range and *EXPR with a pointer to
688 : an array of operations with length *EXPRLEN. If the attribute
689 : describes a single location description and not a location list the
690 : first call (with OFFSET zero) will return the location description
691 : in *EXPR with *STARTP set to zero and *ENDP set to minus one. */
692 : extern ptrdiff_t dwarf_getlocations (Dwarf_Attribute *attr,
693 : ptrdiff_t offset, Dwarf_Addr *basep,
694 : Dwarf_Addr *startp, Dwarf_Addr *endp,
695 : Dwarf_Op **expr, size_t *exprlen);
696 :
697 : /* Return the block associated with a DW_OP_implicit_value operation.
698 : The OP pointer must point into an expression that dwarf_getlocation
699 : or dwarf_getlocation_addr has returned given the same ATTR. */
700 : extern int dwarf_getlocation_implicit_value (Dwarf_Attribute *attr,
701 : const Dwarf_Op *op,
702 : Dwarf_Block *return_block)
703 : __nonnull_attribute__ (2, 3);
704 :
705 : /* Return the attribute indicated by a DW_OP_GNU_implicit_pointer operation.
706 : The OP pointer must point into an expression that dwarf_getlocation
707 : or dwarf_getlocation_addr has returned given the same ATTR.
708 : The result is the DW_AT_location or DW_AT_const_value attribute
709 : of the OP->number DIE. */
710 : extern int dwarf_getlocation_implicit_pointer (Dwarf_Attribute *attr,
711 : const Dwarf_Op *op,
712 : Dwarf_Attribute *result)
713 : __nonnull_attribute__ (2, 3);
714 :
715 : /* Return the DIE associated with an operation such as
716 : DW_OP_GNU_implicit_pointer, DW_OP_GNU_parameter_ref, DW_OP_GNU_convert,
717 : DW_OP_GNU_reinterpret, DW_OP_GNU_const_type, DW_OP_GNU_regval_type or
718 : DW_OP_GNU_deref_type. The OP pointer must point into an expression that
719 : dwarf_getlocation or dwarf_getlocation_addr has returned given the same
720 : ATTR. The RESULT is a DIE that expresses a type or value needed by the
721 : given OP. */
722 : extern int dwarf_getlocation_die (Dwarf_Attribute *attr,
723 : const Dwarf_Op *op,
724 : Dwarf_Die *result)
725 : __nonnull_attribute__ (2, 3);
726 :
727 : /* Return the attribute expressing a value associated with an operation such
728 : as DW_OP_implicit_value, DW_OP_GNU_entry_value or DW_OP_GNU_const_type.
729 : The OP pointer must point into an expression that dwarf_getlocation
730 : or dwarf_getlocation_addr has returned given the same ATTR.
731 : The RESULT is a value expressed by an attribute such as DW_AT_location
732 : or DW_AT_const_value. */
733 : extern int dwarf_getlocation_attr (Dwarf_Attribute *attr,
734 : const Dwarf_Op *op,
735 : Dwarf_Attribute *result)
736 : __nonnull_attribute__ (2, 3);
737 :
738 :
739 : /* Compute the byte-size of a type DIE according to DWARF rules.
740 : For most types, this is just DW_AT_byte_size.
741 : For DW_TAG_array_type it can apply much more complex rules. */
742 : extern int dwarf_aggregate_size (Dwarf_Die *die, Dwarf_Word *size);
743 :
744 : /* Given a language code, as returned by dwarf_srclan, get the default
745 : lower bound for a subrange type without a lower bound attribute.
746 : Returns zero on success or -1 on failure when the given language
747 : wasn't recognized. */
748 : extern int dwarf_default_lower_bound (int lang, Dwarf_Sword *result)
749 : __nonnull_attribute__ (2);
750 :
751 : /* Return scope DIEs containing PC address.
752 : Sets *SCOPES to a malloc'd array of Dwarf_Die structures,
753 : and returns the number of elements in the array.
754 : (*SCOPES)[0] is the DIE for the innermost scope containing PC,
755 : (*SCOPES)[1] is the DIE for the scope containing that scope, and so on.
756 : Returns -1 for errors or 0 if no scopes match PC. */
757 : extern int dwarf_getscopes (Dwarf_Die *cudie, Dwarf_Addr pc,
758 : Dwarf_Die **scopes);
759 :
760 : /* Return scope DIEs containing the given DIE.
761 : Sets *SCOPES to a malloc'd array of Dwarf_Die structures,
762 : and returns the number of elements in the array.
763 : (*SCOPES)[0] is a copy of DIE.
764 : (*SCOPES)[1] is the DIE for the scope containing that scope, and so on.
765 : Returns -1 for errors or 0 if DIE is not found in any scope entry. */
766 : extern int dwarf_getscopes_die (Dwarf_Die *die, Dwarf_Die **scopes);
767 :
768 :
769 : /* Search SCOPES[0..NSCOPES-1] for a variable called NAME.
770 : Ignore the first SKIP_SHADOWS scopes that match the name.
771 : If MATCH_FILE is not null, accept only declaration in that source file;
772 : if MATCH_LINENO or MATCH_LINECOL are also nonzero, accept only declaration
773 : at that line and column.
774 :
775 : If successful, fill in *RESULT with the DIE of the variable found,
776 : and return N where SCOPES[N] is the scope defining the variable.
777 : Return -1 for errors or -2 for no matching variable found. */
778 : extern int dwarf_getscopevar (Dwarf_Die *scopes, int nscopes,
779 : const char *name, int skip_shadows,
780 : const char *match_file,
781 : int match_lineno, int match_linecol,
782 : Dwarf_Die *result);
783 :
784 :
785 :
786 : /* Return list address ranges. */
787 : extern int dwarf_getaranges (Dwarf *dbg, Dwarf_Aranges **aranges,
788 : size_t *naranges)
789 : __nonnull_attribute__ (2);
790 :
791 : /* Return one of the address range entries. */
792 : extern Dwarf_Arange *dwarf_onearange (Dwarf_Aranges *aranges, size_t idx);
793 :
794 : /* Return information in address range record. */
795 : extern int dwarf_getarangeinfo (Dwarf_Arange *arange, Dwarf_Addr *addrp,
796 : Dwarf_Word *lengthp, Dwarf_Off *offsetp);
797 :
798 : /* Get address range which includes given address. */
799 : extern Dwarf_Arange *dwarf_getarange_addr (Dwarf_Aranges *aranges,
800 : Dwarf_Addr addr);
801 :
802 :
803 :
804 : /* Get functions in CUDIE. The given callback will be called for all
805 : defining DW_TAG_subprograms in the CU DIE tree. If the callback
806 : returns DWARF_CB_ABORT the return value can be used as offset argument
807 : to resume the function to find all remaining functions (this is not
808 : really recommended, since it needs to rewalk the CU DIE tree first till
809 : that offset is found again). If the callback returns DWARF_CB_OK
810 : dwarf_getfuncs will not return but keep calling the callback for each
811 : function DIE it finds. Pass zero for offset on the first call to walk
812 : the full CU DIE tree. If no more functions can be found and the callback
813 : returned DWARF_CB_OK then the function returns zero. */
814 : extern ptrdiff_t dwarf_getfuncs (Dwarf_Die *cudie,
815 : int (*callback) (Dwarf_Die *, void *),
816 : void *arg, ptrdiff_t offset);
817 :
818 :
819 : /* Return file name containing definition of the given declaration. */
820 : extern const char *dwarf_decl_file (Dwarf_Die *decl);
821 :
822 : /* Get line number of beginning of given declaration. */
823 : extern int dwarf_decl_line (Dwarf_Die *decl, int *linep)
824 : __nonnull_attribute__ (2);
825 :
826 : /* Get column number of beginning of given declaration. */
827 : extern int dwarf_decl_column (Dwarf_Die *decl, int *colp)
828 : __nonnull_attribute__ (2);
829 :
830 :
831 : /* Return nonzero if given function is an abstract inline definition. */
832 : extern int dwarf_func_inline (Dwarf_Die *func);
833 :
834 : /* Find each concrete inlined instance of the abstract inline definition. */
835 : extern int dwarf_func_inline_instances (Dwarf_Die *func,
836 : int (*callback) (Dwarf_Die *, void *),
837 : void *arg);
838 :
839 :
840 : /* Find the appropriate PC location or locations for function entry
841 : breakpoints for the given DW_TAG_subprogram DIE. Returns -1 for errors.
842 : On success, returns the number of breakpoint locations (never zero)
843 : and sets *BKPTS to a malloc'd vector of addresses. */
844 : extern int dwarf_entry_breakpoints (Dwarf_Die *die, Dwarf_Addr **bkpts);
845 :
846 :
847 : /* Iterate through the macro unit referenced by CUDIE and call
848 : CALLBACK for each macro information entry. To start the iteration,
849 : one would pass DWARF_GETMACROS_START for TOKEN.
850 :
851 : The iteration continues while CALLBACK returns DWARF_CB_OK. If the
852 : callback returns DWARF_CB_ABORT, the iteration stops and a
853 : continuation token is returned, which can be used to restart the
854 : iteration at the point where it ended. Returns -1 for errors or 0
855 : if there are no more macro entries.
856 :
857 : Note that the Dwarf_Macro pointer passed to the callback is only
858 : valid for the duration of the callback invocation.
859 :
860 : For backward compatibility, a token of 0 is accepted for starting
861 : the iteration as well, but in that case this interface will refuse
862 : to serve opcode 0xff from .debug_macro sections. Such opcode would
863 : be considered invalid and would cause dwarf_getmacros to return
864 : with error. */
865 : #define DWARF_GETMACROS_START PTRDIFF_MIN
866 : extern ptrdiff_t dwarf_getmacros (Dwarf_Die *cudie,
867 : int (*callback) (Dwarf_Macro *, void *),
868 : void *arg, ptrdiff_t token)
869 : __nonnull_attribute__ (2);
870 :
871 : /* This is similar in operation to dwarf_getmacros, but selects the
872 : unit to iterate through by offset instead of by CU, and always
873 : iterates .debug_macro. This can be used for handling
874 : DW_MACRO_GNU_transparent_include's or similar opcodes.
875 :
876 : TOKEN value of DWARF_GETMACROS_START can be used to start the
877 : iteration.
878 :
879 : It is not appropriate to obtain macro unit offset by hand from a CU
880 : DIE and then request iteration through this interface. The reason
881 : for this is that if a dwarf_macro_getsrcfiles is later called,
882 : there would be no way to figure out what DW_AT_comp_dir was present
883 : on the CU DIE, and file names referenced in either the macro unit
884 : itself, or the .debug_line unit that it references, might be wrong.
885 : Use dwarf_getmacros. */
886 : extern ptrdiff_t dwarf_getmacros_off (Dwarf *dbg, Dwarf_Off macoff,
887 : int (*callback) (Dwarf_Macro *, void *),
888 : void *arg, ptrdiff_t token)
889 : __nonnull_attribute__ (3);
890 :
891 : /* Get the source files used by the macro entry. You shouldn't assume
892 : that Dwarf_Files references will remain valid after MACRO becomes
893 : invalid. (Which is to say it's only valid within the
894 : dwarf_getmacros* callback.) Returns 0 for success or a negative
895 : value in case of an error. */
896 : extern int dwarf_macro_getsrcfiles (Dwarf *dbg, Dwarf_Macro *macro,
897 : Dwarf_Files **files, size_t *nfiles)
898 : __nonnull_attribute__ (2, 3, 4);
899 :
900 : /* Return macro opcode. That's a constant that can be either from
901 : DW_MACINFO_* domain or DW_MACRO_GNU_* domain. The two domains have
902 : compatible values, so it's OK to use either of them for
903 : comparisons. The only differences is 0xff, which could be either
904 : DW_MACINFO_vendor_ext or a vendor-defined DW_MACRO_* constant. One
905 : would need to look if the CU DIE which the iteration was requested
906 : for has attribute DW_AT_macro_info, or either of DW_AT_GNU_macros
907 : or DW_AT_macros to differentiate the two interpretations. */
908 : extern int dwarf_macro_opcode (Dwarf_Macro *macro, unsigned int *opcodep)
909 : __nonnull_attribute__ (2);
910 :
911 : /* Get number of parameters of MACRO and store it to *PARAMCNTP. */
912 : extern int dwarf_macro_getparamcnt (Dwarf_Macro *macro, size_t *paramcntp);
913 :
914 : /* Get IDX-th parameter of MACRO (numbered from zero), and stores it
915 : to *ATTRIBUTE. Returns 0 on success or -1 for errors.
916 :
917 : After a successful call, you can query ATTRIBUTE by dwarf_whatform
918 : to determine which of the dwarf_formX calls to make to get actual
919 : value out of ATTRIBUTE. Note that calling dwarf_whatattr is not
920 : meaningful for pseudo-attributes formed this way. */
921 : extern int dwarf_macro_param (Dwarf_Macro *macro, size_t idx,
922 : Dwarf_Attribute *attribute);
923 :
924 : /* Return macro parameter with index 0. This will return -1 if the
925 : parameter is not an integral value. Use dwarf_macro_param for more
926 : general access. */
927 : extern int dwarf_macro_param1 (Dwarf_Macro *macro, Dwarf_Word *paramp)
928 : __nonnull_attribute__ (2);
929 :
930 : /* Return macro parameter with index 1. This will return -1 if the
931 : parameter is not an integral or string value. Use
932 : dwarf_macro_param for more general access. */
933 : extern int dwarf_macro_param2 (Dwarf_Macro *macro, Dwarf_Word *paramp,
934 : const char **strp);
935 :
936 : /* Compute what's known about a call frame when the PC is at ADDRESS.
937 : Returns 0 for success or -1 for errors.
938 : On success, *FRAME is a malloc'd pointer. */
939 : extern int dwarf_cfi_addrframe (Dwarf_CFI *cache,
940 : Dwarf_Addr address, Dwarf_Frame **frame)
941 : __nonnull_attribute__ (3);
942 :
943 : /* Return the DWARF register number used in FRAME to denote
944 : the return address in FRAME's caller frame. The remaining
945 : arguments can be non-null to fill in more information.
946 :
947 : Fill [*START, *END) with the PC range to which FRAME's information applies.
948 : Fill in *SIGNALP to indicate whether this is a signal-handling frame.
949 : If true, this is the implicit call frame that calls a signal handler.
950 : This frame's "caller" is actually the interrupted state, not a call;
951 : its return address is an exact PC, not a PC after a call instruction. */
952 : extern int dwarf_frame_info (Dwarf_Frame *frame,
953 : Dwarf_Addr *start, Dwarf_Addr *end, bool *signalp);
954 :
955 : /* Return a DWARF expression that yields the Canonical Frame Address at
956 : this frame state. Returns -1 for errors, or zero for success, with
957 : *NOPS set to the number of operations stored at *OPS. That pointer
958 : can be used only as long as FRAME is alive and unchanged. *NOPS is
959 : zero if the CFA cannot be determined here. Note that if nonempty,
960 : *OPS is a DWARF expression, not a location description--append
961 : DW_OP_stack_value to a get a location description for the CFA. */
962 : extern int dwarf_frame_cfa (Dwarf_Frame *frame, Dwarf_Op **ops, size_t *nops)
963 : __nonnull_attribute__ (2);
964 :
965 : /* Deliver a DWARF location description that yields the location or
966 : value of DWARF register number REGNO in the state described by FRAME.
967 :
968 : Returns -1 for errors or zero for success, setting *NOPS to the
969 : number of operations in the array stored at *OPS. Note the last
970 : operation is DW_OP_stack_value if there is no mutable location but
971 : only a computable value.
972 :
973 : *NOPS zero with *OPS set to OPS_MEM means CFI says the caller's
974 : REGNO is "undefined", i.e. it's call-clobbered and cannot be recovered.
975 :
976 : *NOPS zero with *OPS set to a null pointer means CFI says the
977 : caller's REGNO is "same_value", i.e. this frame did not change it;
978 : ask the caller frame where to find it.
979 :
980 : For common simple expressions *OPS is OPS_MEM. For arbitrary DWARF
981 : expressions in the CFI, *OPS is an internal pointer that can be used as
982 : long as the Dwarf_CFI used to create FRAME remains alive. */
983 : extern int dwarf_frame_register (Dwarf_Frame *frame, int regno,
984 : Dwarf_Op ops_mem[3],
985 : Dwarf_Op **ops, size_t *nops)
986 : __nonnull_attribute__ (3, 4, 5);
987 :
988 :
989 : /* Return error code of last failing function call. This value is kept
990 : separately for each thread. */
991 : extern int dwarf_errno (void);
992 :
993 : /* Return error string for ERROR. If ERROR is zero, return error string
994 : for most recent error or NULL is none occurred. If ERROR is -1 the
995 : behaviour is similar to the last case except that not NULL but a legal
996 : string is returned. */
997 : extern const char *dwarf_errmsg (int err);
998 :
999 :
1000 : /* Register new Out-Of-Memory handler. The old handler is returned. */
1001 : extern Dwarf_OOM dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler);
1002 :
1003 :
1004 : /* Inline optimizations. */
1005 : #ifdef __OPTIMIZE__
1006 : /* Return attribute code of given attribute. */
1007 : __libdw_extern_inline unsigned int
1008 : dwarf_whatattr (Dwarf_Attribute *attr)
1009 : {
1010 2782169 : return attr == NULL ? 0 : attr->code;
1011 : }
1012 :
1013 : /* Return attribute code of given attribute. */
1014 : __libdw_extern_inline unsigned int
1015 : dwarf_whatform (Dwarf_Attribute *attr)
1016 : {
1017 2782169 : return attr == NULL ? 0 : attr->form;
1018 : }
1019 : #endif /* Optimize. */
1020 :
1021 : #ifdef __cplusplus
1022 : }
1023 : #endif
1024 :
1025 : #endif /* libdw.h */
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