2 * Copyright (c) 2007 John Birrell (jb@freebsd.org)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include "_libdwarf.h"
34 get_sht_desc(uint32_t sh_type)
40 return "program defined information";
42 return "symbol table section";
44 return "string table section";
46 return "relocation section with addends";
48 return "symbol hash table section";
50 return "dynamic section";
52 return "note section";
54 return "no space section";
56 return "relocation section - no addends";
58 return "reserved - purpose unknown";
60 return "dynamic symbol table section";
62 return "Initialization function pointers.";
64 return "Termination function pointers.";
65 case SHT_PREINIT_ARRAY:
66 return "Pre-initialization function ptrs.";
68 return "Section group.";
69 case SHT_SYMTAB_SHNDX:
70 return "Section indexes (see SHN_XINDEX).";
72 return "Symbol versions provided";
74 return "Symbol versions required";
76 return "Symbol version table";
77 case SHT_AMD64_UNWIND:
78 return "AMD64 unwind";
85 get_attr_desc(uint32_t attr)
88 case DW_AT_abstract_origin:
89 return "DW_AT_abstract_origin";
90 case DW_AT_accessibility:
91 return "DW_AT_accessibility";
92 case DW_AT_address_class:
93 return "DW_AT_address_class";
94 case DW_AT_artificial:
95 return "DW_AT_artificial";
96 case DW_AT_base_types:
97 return "DW_AT_base_types";
98 case DW_AT_bit_offset:
99 return "DW_AT_bit_offset";
101 return "DW_AT_bit_size";
102 case DW_AT_byte_size:
103 return "DW_AT_byte_size";
104 case DW_AT_calling_convention:
105 return "DW_AT_calling_convention";
106 case DW_AT_common_reference:
107 return "DW_AT_common_reference";
109 return "DW_AT_comp_dir";
110 case DW_AT_const_value:
111 return "DW_AT_const_value";
112 case DW_AT_containing_type:
113 return "DW_AT_containing_type";
115 return "DW_AT_count";
116 case DW_AT_data_member_location:
117 return "DW_AT_data_member_location";
118 case DW_AT_decl_column:
119 return "DW_AT_decl_column";
120 case DW_AT_decl_file:
121 return "DW_AT_decl_file";
122 case DW_AT_decl_line:
123 return "DW_AT_decl_line";
124 case DW_AT_declaration:
125 return "DW_AT_declaration";
126 case DW_AT_default_value:
127 return "DW_AT_default_value";
129 return "DW_AT_discr";
130 case DW_AT_discr_list:
131 return "DW_AT_discr_list";
132 case DW_AT_discr_value:
133 return "DW_AT_discr_value";
134 case DW_AT_element_list:
135 return "DW_AT_element_list";
137 return "DW_AT_encoding";
139 return "DW_AT_external";
140 case DW_AT_frame_base:
141 return "DW_AT_frame_base";
143 return "DW_AT_friend";
145 return "DW_AT_high_pc";
146 case DW_AT_identifier_case:
147 return "DW_AT_identifier_case";
149 return "DW_AT_import";
151 return "DW_AT_inline";
152 case DW_AT_is_optional:
153 return "DW_AT_is_optional";
155 return "DW_AT_language";
157 return "DW_AT_location";
159 return "DW_AT_low_pc";
160 case DW_AT_lower_bound:
161 return "DW_AT_lower_bound";
162 case DW_AT_macro_info:
163 return "DW_AT_macro_info";
165 return "DW_AT_member";
168 case DW_AT_namelist_item:
169 return "DW_AT_namelist_item";
171 return "DW_AT_ordering";
173 return "DW_AT_priority";
175 return "DW_AT_producer";
176 case DW_AT_prototyped:
177 return "DW_AT_prototyped";
178 case DW_AT_return_addr:
179 return "DW_AT_return_addr";
181 return "DW_AT_segment";
183 return "DW_AT_sibling";
184 case DW_AT_specification:
185 return "DW_AT_specification";
186 case DW_AT_start_scope:
187 return "DW_AT_start_scope";
188 case DW_AT_static_link:
189 return "DW_AT_static_link";
190 case DW_AT_stmt_list:
191 return "DW_AT_stmt_list";
192 case DW_AT_stride_size:
193 return "DW_AT_stride_size";
194 case DW_AT_string_length:
195 return "DW_AT_string_length";
196 case DW_AT_subscr_data:
197 return "DW_AT_subscr_data";
200 case DW_AT_upper_bound:
201 return "DW_AT_upper_bound";
202 case DW_AT_use_location:
203 return "DW_AT_use_location";
204 case DW_AT_variable_parameter:
205 return "DW_AT_variable_parameter";
206 case DW_AT_virtuality:
207 return "DW_AT_virtuality";
208 case DW_AT_visibility:
209 return "DW_AT_visibility";
210 case DW_AT_vtable_elem_location:
211 return "DW_AT_vtable_elem_location";
216 return "Unknown attribute";
220 get_form_desc(uint32_t form)
224 return "DW_FORM_addr";
226 return "DW_FORM_block";
228 return "DW_FORM_block1";
230 return "DW_FORM_block2";
232 return "DW_FORM_block4";
234 return "DW_FORM_data1";
236 return "DW_FORM_data2";
238 return "DW_FORM_data4";
240 return "DW_FORM_data8";
242 return "DW_FORM_flag";
243 case DW_FORM_indirect:
244 return "DW_FORM_indirect";
246 return "DW_FORM_ref1";
248 return "DW_FORM_ref2";
250 return "DW_FORM_ref4";
252 return "DW_FORM_ref8";
253 case DW_FORM_ref_addr:
254 return "DW_FORM_ref_addr";
255 case DW_FORM_ref_udata:
256 return "DW_FORM_ref_udata";
258 return "DW_FORM_sdata";
260 return "DW_FORM_string";
262 return "DW_FORM_strp";
264 return "DW_FORM_udata";
269 return "Unknown attribute";
273 get_tag_desc(uint32_t tag)
276 case DW_TAG_access_declaration:
277 return "DW_TAG_access_declaration";
278 case DW_TAG_array_type:
279 return "DW_TAG_array_type";
280 case DW_TAG_base_type:
281 return "DW_TAG_base_type";
282 case DW_TAG_catch_block:
283 return "DW_TAG_catch_block";
284 case DW_TAG_class_type:
285 return "DW_TAG_class_type";
286 case DW_TAG_common_block:
287 return "DW_TAG_common_block";
288 case DW_TAG_common_inclusion:
289 return "DW_TAG_common_inclusion";
290 case DW_TAG_compile_unit:
291 return "DW_TAG_compile_unit";
292 case DW_TAG_condition:
293 return "DW_TAG_condition";
294 case DW_TAG_const_type:
295 return "DW_TAG_const_type";
296 case DW_TAG_constant:
297 return "DW_TAG_constant";
298 case DW_TAG_dwarf_procedure:
299 return "DW_TAG_dwarf_procedure";
300 case DW_TAG_entry_point:
301 return "DW_TAG_entry_point";
302 case DW_TAG_enumeration_type:
303 return "DW_TAG_enumeration_type";
304 case DW_TAG_enumerator:
305 return "DW_TAG_enumerator";
306 case DW_TAG_formal_parameter:
307 return "DW_TAG_formal_parameter";
309 return "DW_TAG_friend";
310 case DW_TAG_imported_declaration:
311 return "DW_TAG_imported_declaration";
312 case DW_TAG_imported_module:
313 return "DW_TAG_imported_module";
314 case DW_TAG_imported_unit:
315 return "DW_TAG_imported_unit";
316 case DW_TAG_inheritance:
317 return "DW_TAG_inheritance";
318 case DW_TAG_inlined_subroutine:
319 return "DW_TAG_inlined_subroutine";
320 case DW_TAG_interface_type:
321 return "DW_TAG_interface_type";
323 return "DW_TAG_label";
324 case DW_TAG_lexical_block:
325 return "DW_TAG_lexical_block";
327 return "DW_TAG_member";
329 return "DW_TAG_module";
330 case DW_TAG_namelist:
331 return "DW_TAG_namelist";
332 case DW_TAG_namelist_item:
333 return "DW_TAG_namelist_item";
334 case DW_TAG_namespace:
335 return "DW_TAG_namespace";
336 case DW_TAG_packed_type:
337 return "DW_TAG_packed_type";
338 case DW_TAG_partial_unit:
339 return "DW_TAG_partial_unit";
340 case DW_TAG_pointer_type:
341 return "DW_TAG_pointer_type";
342 case DW_TAG_ptr_to_member_type:
343 return "DW_TAG_ptr_to_member_type";
344 case DW_TAG_reference_type:
345 return "DW_TAG_reference_type";
346 case DW_TAG_restrict_type:
347 return "DW_TAG_restrict_type";
348 case DW_TAG_set_type:
349 return "DW_TAG_set_type";
350 case DW_TAG_shared_type:
351 return "DW_TAG_shared_type";
352 case DW_TAG_string_type:
353 return "DW_TAG_string_type";
354 case DW_TAG_structure_type:
355 return "DW_TAG_structure_type";
356 case DW_TAG_subprogram:
357 return "DW_TAG_subprogram";
358 case DW_TAG_subrange_type:
359 return "DW_TAG_subrange_type";
360 case DW_TAG_subroutine_type:
361 return "DW_TAG_subroutine_type";
362 case DW_TAG_template_type_parameter:
363 return "DW_TAG_template_type_parameter";
364 case DW_TAG_template_value_parameter:
365 return "DW_TAG_template_value_parameter";
366 case DW_TAG_thrown_type:
367 return "DW_TAG_thrown_type";
368 case DW_TAG_try_block:
369 return "DW_TAG_try_block";
371 return "DW_TAG_typedef";
372 case DW_TAG_union_type:
373 return "DW_TAG_union_type";
374 case DW_TAG_unspecified_parameters:
375 return "DW_TAG_unspecified_parameters";
376 case DW_TAG_unspecified_type:
377 return "DW_TAG_unspecified_type";
378 case DW_TAG_variable:
379 return "DW_TAG_variable";
381 return "DW_TAG_variant";
382 case DW_TAG_variant_part:
383 return "DW_TAG_variant_part";
384 case DW_TAG_volatile_type:
385 return "DW_TAG_volatile_type";
386 case DW_TAG_with_stmt:
387 return "DW_TAG_with_stmt";
392 return "Unknown tag";
396 dwarf_dump_abbrev(Dwarf_Debug dbg)
402 printf("Contents of the .debug_abbrev section:\n\nEntry Tag\n");
404 STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
405 STAILQ_FOREACH(a, &cu->cu_abbrev, a_next) {
406 printf("%5lu %-30s [%s children]\n",
407 (u_long) a->a_entry, get_tag_desc(a->a_tag),
408 (a->a_children == DW_CHILDREN_yes) ? "has" : "no");
410 STAILQ_FOREACH(at, &a->a_attrib, at_next)
411 printf(" %-30s %s\n", get_attr_desc(at->at_attrib),
412 get_form_desc(at->at_form));
420 case DW_INL_not_inlined:
421 printf (_("(not inlined)"));
424 printf (_("(inlined)"));
426 case DW_INL_declared_not_inlined:
427 printf (_("(declared as inline but ignored)"));
429 case DW_INL_declared_inlined:
430 printf (_("(declared as inline and inlined)"));
433 printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
441 case DW_LANG_C: printf ("(non-ANSI C)"); break;
442 case DW_LANG_C89: printf ("(ANSI C)"); break;
443 case DW_LANG_C_plus_plus: printf ("(C++)"); break;
444 case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
445 case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
446 case DW_LANG_Modula2: printf ("(Modula 2)"); break;
447 case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
448 case DW_LANG_Ada83: printf ("(Ada)"); break;
449 case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
450 case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
451 /* DWARF 2.1 values. */
452 case DW_LANG_C99: printf ("(ANSI C99)"); break;
453 case DW_LANG_Ada95: printf ("(ADA 95)"); break;
454 case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
455 /* MIPS extension. */
456 case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
458 case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
460 printf ("(Unknown: %lx)", uvalue);
468 case DW_ATE_void: printf ("(void)"); break;
469 case DW_ATE_address: printf ("(machine address)"); break;
470 case DW_ATE_boolean: printf ("(boolean)"); break;
471 case DW_ATE_complex_float: printf ("(complex float)"); break;
472 case DW_ATE_float: printf ("(float)"); break;
473 case DW_ATE_signed: printf ("(signed)"); break;
474 case DW_ATE_signed_char: printf ("(signed char)"); break;
475 case DW_ATE_unsigned: printf ("(unsigned)"); break;
476 case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
477 /* DWARF 2.1 value. */
478 case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
480 if (uvalue >= DW_ATE_lo_user
481 && uvalue <= DW_ATE_hi_user)
482 printf ("(user defined type)");
484 printf ("(unknown type)");
489 case DW_AT_accessibility:
492 case DW_ACCESS_public: printf ("(public)"); break;
493 case DW_ACCESS_protected: printf ("(protected)"); break;
494 case DW_ACCESS_private: printf ("(private)"); break;
496 printf ("(unknown accessibility)");
501 case DW_AT_visibility:
504 case DW_VIS_local: printf ("(local)"); break;
505 case DW_VIS_exported: printf ("(exported)"); break;
506 case DW_VIS_qualified: printf ("(qualified)"); break;
507 default: printf ("(unknown visibility)"); break;
511 case DW_AT_virtuality:
514 case DW_VIRTUALITY_none: printf ("(none)"); break;
515 case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
516 case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
517 default: printf ("(unknown virtuality)"); break;
521 case DW_AT_identifier_case:
524 case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
525 case DW_ID_up_case: printf ("(up_case)"); break;
526 case DW_ID_down_case: printf ("(down_case)"); break;
527 case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
528 default: printf ("(unknown case)"); break;
532 case DW_AT_calling_convention:
535 case DW_CC_normal: printf ("(normal)"); break;
536 case DW_CC_program: printf ("(program)"); break;
537 case DW_CC_nocall: printf ("(nocall)"); break;
539 if (uvalue >= DW_CC_lo_user
540 && uvalue <= DW_CC_hi_user)
541 printf ("(user defined)");
543 printf ("(unknown convention)");
550 case -1: printf ("(undefined)"); break;
551 case 0: printf ("(row major)"); break;
552 case 1: printf ("(column major)"); break;
556 case DW_AT_frame_base:
558 case DW_AT_data_member_location:
559 case DW_AT_vtable_elem_location:
560 case DW_AT_allocated:
561 case DW_AT_associated:
562 case DW_AT_data_location:
564 case DW_AT_upper_bound:
565 case DW_AT_lower_bound:
569 decode_location_expression (block_start, pointer_size, uvalue);
572 else if (form == DW_FORM_data4 || form == DW_FORM_data8)
575 printf ("location list");
582 dwarf_dump_av_attr(Dwarf_Die die __unused, Dwarf_AttrValue av)
584 switch (av->av_attrib) {
585 case DW_AT_accessibility:
588 case DW_AT_calling_convention:
594 case DW_AT_identifier_case:
606 case DW_AT_virtuality:
609 case DW_AT_visibility:
612 case DW_AT_frame_base:
614 case DW_AT_data_member_location:
615 case DW_AT_vtable_elem_location:
616 case DW_AT_upper_bound:
617 case DW_AT_lower_bound:
626 dwarf_dump_av(Dwarf_Die die, Dwarf_AttrValue av)
630 printf(" %-30s : %-16s ",
631 get_attr_desc(av->av_attrib),
632 get_form_desc(av->av_form));
634 switch (av->av_form) {
636 printf("0x%llx", (unsigned long long) av->u[0].u64);
642 printf("%lu byte block:", (u_long) av->u[0].u64);
643 for (i = 0; i < av->u[0].u64; i++)
644 printf(" %02x", av->u[1].u8p[i]);
651 printf("%llu", (unsigned long long) av->u[0].u64);
657 case DW_FORM_ref_udata:
658 printf("<%llx>", (unsigned long long) (av->u[0].u64 +
659 die->die_cu->cu_offset));
662 printf("%s", av->u[0].s);
665 printf("(indirect string, offset 0x%llx): %s",
666 (unsigned long long) av->u[0].u64, av->u[1].s);
669 printf("unknown form");
673 /* Dump any extra attribute-specific information. */
674 dwarf_dump_av_attr(die, av);
680 dwarf_dump_die_at_offset(Dwarf_Debug dbg, Dwarf_Off off)
688 STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
689 STAILQ_FOREACH(die, &cu->cu_die, die_next) {
690 if ((off_t) die->die_offset == off) {
699 dwarf_dump_die(Dwarf_Die die)
703 printf("<%d><%llx>: Abbrev number: %llu (%s)\n",
704 die->die_level, (unsigned long long) die->die_offset,
705 (unsigned long long) die->die_abnum,
706 get_tag_desc(die->die_a->a_tag));
708 STAILQ_FOREACH(av, &die->die_attrval, av_next)
709 dwarf_dump_av(die, av);
713 dwarf_dump_raw(Dwarf_Debug dbg)
716 char *p = (char *) dbg;
719 printf("dbg %p\n",dbg);
724 for (i = 0; i < (int) sizeof(*dbg); i++) {
725 if (*p >= 0x20 && *p < 0x7f) {
726 printf(" %c",*p++ & 0xff);
728 printf(" %02x",*p++ & 0xff);
733 STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
735 printf("cu %p\n",cu);
736 for (i = 0; i < (int) sizeof(*cu); i++) {
737 if (*p >= 0x20 && *p < 0x7f) {
738 printf(" %c",*p++ & 0xff);
740 printf(" %02x",*p++ & 0xff);
748 dwarf_dump_tree_dies(Dwarf_Debug dbg, Dwarf_Die die, Dwarf_Error *error)
756 if ((ret = dwarf_child(die, &child, error) == DWARF_E_NO_ENTRY)) {
758 } else if (ret != DWARF_E_NONE) {
759 printf("Error %s\n", dwarf_errmsg(error));
762 dwarf_dump_tree_dies(dbg, child, error);
764 if (dwarf_siblingof(dbg, die, &die, error) != DWARF_E_NONE)
767 } while (die != NULL);
771 dwarf_dump_tree(Dwarf_Debug dbg)
776 Dwarf_Half cu_pointer_size;
777 Dwarf_Half cu_version;
778 Dwarf_Unsigned cu_abbrev_offset;
779 Dwarf_Unsigned cu_header_length;
780 Dwarf_Unsigned cu_next_offset;
782 STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
783 printf ("\nCompilation Unit @ offset %llx:\n",
784 (unsigned long long) cu->cu_offset);
785 printf (" Length: %lu\n", (u_long) cu->cu_length);
786 printf (" Version: %hu\n", cu->cu_version);
787 printf (" Abbrev Offset: %lu\n", (u_long) cu->cu_abbrev_offset);
788 printf (" Pointer Size: %u\n", (u_int) cu->cu_pointer_size);
790 if (dwarf_next_cu_header(dbg, &cu_header_length,
791 &cu_version, &cu_abbrev_offset, &cu_pointer_size,
792 &cu_next_offset, &error) != DWARF_E_NONE) {
793 printf("Error %s\n", dwarf_errmsg(&error));
797 if (dwarf_siblingof(dbg, NULL, &die, &error) != DWARF_E_NONE) {
798 printf("Error %s\n", dwarf_errmsg(&error));
802 dwarf_dump_tree_dies(dbg, die, &error);
808 dwarf_dump_info(Dwarf_Debug dbg)
813 printf("Contents of the .debug_info section:\n");
815 STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
816 printf ("\nCompilation Unit @ offset %llx:\n",
817 (unsigned long long) cu->cu_offset);
818 printf (" Length: %lu\n", (u_long) cu->cu_length);
819 printf (" Version: %hu\n", cu->cu_version);
820 printf (" Abbrev Offset: %lu\n", (u_long) cu->cu_abbrev_offset);
821 printf (" Pointer Size: %u\n", (u_int) cu->cu_pointer_size);
823 STAILQ_FOREACH(die, &cu->cu_die, die_next)
830 dwarf_dump_shstrtab(Dwarf_Debug dbg)
835 printf("---------------------\nSection header string table contents:\n");
836 while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_stnum, indx)) != NULL) {
837 printf("%5d '%s'\n",indx,name);
838 indx += strlen(name) + 1;
843 dwarf_dump_strtab(Dwarf_Debug dbg)
848 printf("---------------------\nString table contents:\n");
849 while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_strtab].s_shnum, indx)) != NULL) {
850 printf("%5d '%s'\n",indx,name);
851 indx += strlen(name) + 1;
856 dwarf_dump_dbgstr(Dwarf_Debug dbg)
861 printf("---------------------\nDebug string table contents:\n");
862 while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_debug_str].s_shnum, indx)) != NULL) {
863 printf("%5d '%s'\n",indx,name);
864 indx += strlen(name) + 1;
869 dwarf_dump_symtab(Dwarf_Debug dbg)
875 printf("---------------------\nSymbol table contents:\n");
876 while (gelf_getsym(dbg->dbg_s[DWARF_symtab].s_data, indx++, &sym) != NULL) {
877 if ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_strtab].s_shnum, sym.st_name)) == NULL)
878 printf("sym.st_name %u indx %d sym.st_size %lu\n",sym.st_name,indx,(u_long) sym.st_size);
880 printf("'%s' sym.st_name %u indx %d sym.st_size %lu\n",name,sym.st_name,indx,(u_long) sym.st_size);
885 dwarf_dump(Dwarf_Debug dbg)
887 dwarf_dump_strtab(dbg);
888 dwarf_dump_shstrtab(dbg);
889 dwarf_dump_dbgstr(dbg);
890 dwarf_dump_symtab(dbg);
891 dwarf_dump_info(dbg);