2 * File dwarf.c - read dwarf2 information from the ELF modules
4 * Copyright (C) 2005, Raphael Junqueira
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <sys/types.h>
25 #ifdef HAVE_SYS_STAT_H
26 # include <sys/stat.h>
28 #ifdef HAVE_SYS_MMAN_H
39 #define PATH_MAX MAX_PATH
49 #include "dbghelp_private.h"
51 #include "wine/debug.h"
53 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp_dwarf
);
56 static void dump(const void* ptr
, unsigned len
)
60 static const char hexof
[] = "0123456789abcdef";
61 const BYTE
* x
= (const BYTE
*)ptr
;
63 for (i
= 0; i
< len
; i
+= 16)
65 sprintf(msg
, "%08x: ", i
);
66 memset(msg
+ 10, ' ', 3 * 16 + 1 + 16);
67 for (j
= 0; j
< min(16, len
- i
); j
++)
69 msg
[10 + 3 * j
+ 0] = hexof
[x
[i
+ j
] >> 4];
70 msg
[10 + 3 * j
+ 1] = hexof
[x
[i
+ j
] & 15];
71 msg
[10 + 3 * j
+ 2] = ' ';
72 msg
[10 + 3 * 16 + 1 + j
] = (x
[i
+ j
] >= 0x20 && x
[i
+ j
] < 0x7f) ?
75 msg
[10 + 3 * 16] = ' ';
76 msg
[10 + 3 * 16 + 1 + 16] = '\0';
85 * http://www.eagercon.com/dwarf/dwarf3std.htm
86 * http://www.eagercon.com/dwarf/dwarf-2.0.0.pdf
88 * dwarf2.h: http://www.hakpetzna.com/b/binutils/dwarf2_8h-source.html
90 * example of projects who do dwarf2 parsing:
91 * http://www.x86-64.org/cgi-bin/cvsweb.cgi/binutils.dead/binutils/readelf.c?rev=1.1.1.2
92 * http://elis.ugent.be/diota/log/ltrace_elf.c
96 unsigned char length
[4];
97 unsigned char version
[2];
98 unsigned char abbrev_offset
[4];
99 unsigned char word_size
[1];
100 } dwarf2_comp_unit_stream_t
;
103 unsigned long length
;
104 unsigned short version
;
105 unsigned long abbrev_offset
;
106 unsigned char word_size
;
107 } dwarf2_comp_unit_t
;
111 unsigned short version
;
112 unsigned int prologue_length
;
113 unsigned char min_insn_length
;
114 unsigned char default_is_stmt
;
116 unsigned char line_range
;
117 unsigned char opcode_base
;
118 } dwarf2_line_info_t
;
120 typedef enum dwarf_tag_e
{
121 DW_TAG_padding
= 0x00,
122 DW_TAG_array_type
= 0x01,
123 DW_TAG_class_type
= 0x02,
124 DW_TAG_entry_point
= 0x03,
125 DW_TAG_enumeration_type
= 0x04,
126 DW_TAG_formal_parameter
= 0x05,
127 DW_TAG_imported_declaration
= 0x08,
129 DW_TAG_lexical_block
= 0x0b,
130 DW_TAG_member
= 0x0d,
131 DW_TAG_pointer_type
= 0x0f,
132 DW_TAG_reference_type
= 0x10,
133 DW_TAG_compile_unit
= 0x11,
134 DW_TAG_string_type
= 0x12,
135 DW_TAG_structure_type
= 0x13,
136 DW_TAG_subroutine_type
= 0x15,
137 DW_TAG_typedef
= 0x16,
138 DW_TAG_union_type
= 0x17,
139 DW_TAG_unspecified_parameters
= 0x18,
140 DW_TAG_variant
= 0x19,
141 DW_TAG_common_block
= 0x1a,
142 DW_TAG_common_inclusion
= 0x1b,
143 DW_TAG_inheritance
= 0x1c,
144 DW_TAG_inlined_subroutine
= 0x1d,
145 DW_TAG_module
= 0x1e,
146 DW_TAG_ptr_to_member_type
= 0x1f,
147 DW_TAG_set_type
= 0x20,
148 DW_TAG_subrange_type
= 0x21,
149 DW_TAG_with_stmt
= 0x22,
150 DW_TAG_access_declaration
= 0x23,
151 DW_TAG_base_type
= 0x24,
152 DW_TAG_catch_block
= 0x25,
153 DW_TAG_const_type
= 0x26,
154 DW_TAG_constant
= 0x27,
155 DW_TAG_enumerator
= 0x28,
156 DW_TAG_file_type
= 0x29,
157 DW_TAG_friend
= 0x2a,
158 DW_TAG_namelist
= 0x2b,
159 DW_TAG_namelist_item
= 0x2c,
160 DW_TAG_packed_type
= 0x2d,
161 DW_TAG_subprogram
= 0x2e,
162 DW_TAG_template_type_param
= 0x2f,
163 DW_TAG_template_value_param
= 0x30,
164 DW_TAG_thrown_type
= 0x31,
165 DW_TAG_try_block
= 0x32,
166 DW_TAG_variant_part
= 0x33,
167 DW_TAG_variable
= 0x34,
168 DW_TAG_volatile_type
= 0x35,
170 DW_TAG_MIPS_loop
= 0x4081,
171 DW_TAG_format_label
= 0x4101,
172 DW_TAG_function_template
= 0x4102,
173 DW_TAG_class_template
= 0x4103
176 typedef enum dwarf_attribute_e
{
177 DW_AT_sibling
= 0x01,
178 DW_AT_location
= 0x02,
180 DW_AT_ordering
= 0x09,
181 DW_AT_subscr_data
= 0x0a,
182 DW_AT_byte_size
= 0x0b,
183 DW_AT_bit_offset
= 0x0c,
184 DW_AT_bit_size
= 0x0d,
185 DW_AT_element_list
= 0x0f,
186 DW_AT_stmt_list
= 0x10,
188 DW_AT_high_pc
= 0x12,
189 DW_AT_language
= 0x13,
192 DW_AT_discr_value
= 0x16,
193 DW_AT_visibility
= 0x17,
195 DW_AT_string_length
= 0x19,
196 DW_AT_common_reference
= 0x1a,
197 DW_AT_comp_dir
= 0x1b,
198 DW_AT_const_value
= 0x1c,
199 DW_AT_containing_type
= 0x1d,
200 DW_AT_default_value
= 0x1e,
202 DW_AT_is_optional
= 0x21,
203 DW_AT_lower_bound
= 0x22,
204 DW_AT_producer
= 0x25,
205 DW_AT_prototyped
= 0x27,
206 DW_AT_return_addr
= 0x2a,
207 DW_AT_start_scope
= 0x2c,
208 DW_AT_stride_size
= 0x2e,
209 DW_AT_upper_bound
= 0x2f,
210 DW_AT_abstract_origin
= 0x31,
211 DW_AT_accessibility
= 0x32,
212 DW_AT_address_class
= 0x33,
213 DW_AT_artificial
= 0x34,
214 DW_AT_base_types
= 0x35,
215 DW_AT_calling_convention
= 0x36,
217 DW_AT_data_member_location
= 0x38,
218 DW_AT_decl_column
= 0x39,
219 DW_AT_decl_file
= 0x3a,
220 DW_AT_decl_line
= 0x3b,
221 DW_AT_declaration
= 0x3c,
222 DW_AT_discr_list
= 0x3d,
223 DW_AT_encoding
= 0x3e,
224 DW_AT_external
= 0x3f,
225 DW_AT_frame_base
= 0x40,
227 DW_AT_identifier_case
= 0x42,
228 DW_AT_macro_info
= 0x43,
229 DW_AT_namelist_items
= 0x44,
230 DW_AT_priority
= 0x45,
231 DW_AT_segment
= 0x46,
232 DW_AT_specification
= 0x47,
233 DW_AT_static_link
= 0x48,
235 DW_AT_use_location
= 0x4a,
236 DW_AT_variable_parameter
= 0x4b,
237 DW_AT_virtuality
= 0x4c,
238 DW_AT_vtable_elem_location
= 0x4d,
242 DW_AT_MIPS_fde
= 0x2001,
243 DW_AT_MIPS_loop_begin
= 0x2002,
244 DW_AT_MIPS_tail_loop_begin
= 0x2003,
245 DW_AT_MIPS_epilog_begin
= 0x2004,
246 DW_AT_MIPS_loop_unroll_factor
= 0x2005,
247 DW_AT_MIPS_software_pipeline_depth
= 0x2006,
248 DW_AT_MIPS_linkage_name
= 0x2007,
249 DW_AT_MIPS_stride
= 0x2008,
250 DW_AT_MIPS_abstract_name
= 0x2009,
251 DW_AT_MIPS_clone_origin
= 0x200a,
252 DW_AT_MIPS_has_inlines
= 0x200b,
253 DW_AT_sf_names
= 0x2101,
254 DW_AT_src_info
= 0x2102,
255 DW_AT_mac_info
= 0x2103,
256 DW_AT_src_coords
= 0x2104,
257 DW_AT_body_begin
= 0x2105,
258 DW_AT_body_end
= 0x2106
261 typedef enum dwarf_form_e
{
263 DW_FORM_block2
= 0x03,
264 DW_FORM_block4
= 0x04,
265 DW_FORM_data2
= 0x05,
266 DW_FORM_data4
= 0x06,
267 DW_FORM_data8
= 0x07,
268 DW_FORM_string
= 0x08,
269 DW_FORM_block
= 0x09,
270 DW_FORM_block1
= 0x0a,
271 DW_FORM_data1
= 0x0b,
273 DW_FORM_sdata
= 0x0d,
275 DW_FORM_udata
= 0x0f,
276 DW_FORM_ref_addr
= 0x10,
281 DW_FORM_ref_udata
= 0x15,
282 DW_FORM_indirect
= 0x16
286 typedef enum dwarf_type_e
{
288 DW_ATE_address
= 0x1,
289 DW_ATE_boolean
= 0x2,
290 DW_ATE_complex_float
= 0x3,
293 DW_ATE_signed_char
= 0x6,
294 DW_ATE_unsigned
= 0x7,
295 DW_ATE_unsigned_char
= 0x8
298 typedef enum dwarf_operation_e
{
301 DW_OP_const1u
= 0x08,
302 DW_OP_const1s
= 0x09,
303 DW_OP_const2u
= 0x0a,
304 DW_OP_const2s
= 0x0b,
305 DW_OP_const4u
= 0x0c,
306 DW_OP_const4s
= 0x0d,
307 DW_OP_const8u
= 0x0e,
308 DW_OP_const8s
= 0x0f,
328 DW_OP_plus_uconst
= 0x23,
441 DW_OP_deref_size
= 0x94,
442 DW_OP_xderef_size
= 0x95,
446 enum dwarf_calling_convention
453 #define DW_CC_lo_user 0x40
454 #define DW_CC_hi_user 0xff
461 typedef struct dwarf2_abbrev_entry_attr_s
{
462 unsigned long attribute
;
464 struct dwarf2_abbrev_entry_attr_s
* next
;
465 } dwarf2_abbrev_entry_attr_t
;
467 typedef struct dwarf2_abbrev_entry_s
{
468 unsigned long entry_code
;
470 unsigned char have_child
;
471 dwarf2_abbrev_entry_attr_t
* attrs
;
472 struct dwarf2_abbrev_entry_s
* next
;
473 } dwarf2_abbrev_entry_t
;
475 typedef struct dwarf2_abbrev_table_s
{
476 dwarf2_abbrev_entry_t
* first
;
478 } dwarf2_abbrev_table_t
;
480 typedef struct dwarf2_parse_context_s
{
481 dwarf2_abbrev_table_t
* abbrev_table
;
482 const unsigned char* data_stream
;
483 const unsigned char* data
;
484 const unsigned char* start_data
;
485 const unsigned char* end_data
;
486 const unsigned char* str_section
;
487 unsigned long offset
;
488 unsigned char word_size
;
490 } dwarf2_parse_context_t
;
492 static unsigned char dwarf2_parse_byte(dwarf2_parse_context_t
* ctx
)
494 unsigned char uvalue
= *(const unsigned char*) ctx
->data
;
499 static unsigned short dwarf2_parse_u2(dwarf2_parse_context_t
* ctx
)
501 unsigned short uvalue
= *(const unsigned short*) ctx
->data
;
506 static unsigned long dwarf2_parse_u4(dwarf2_parse_context_t
* ctx
)
508 unsigned long uvalue
= *(const unsigned int*) ctx
->data
;
513 static unsigned long dwarf2_leb128_as_unsigned(dwarf2_parse_context_t
* ctx
)
515 unsigned long ret
= 0;
519 assert( NULL
!= ctx
);
522 byte
= dwarf2_parse_byte(ctx
);
523 ret
|= (byte
& 0x7f) << shift
;
525 if (0 == (byte
& 0x80)) { break ; }
531 static long dwarf2_leb128_as_signed(dwarf2_parse_context_t
* ctx
)
536 const unsigned size
= sizeof(int) * 8;
538 assert( NULL
!= ctx
);
541 byte
= dwarf2_parse_byte(ctx
);
542 ret
|= (byte
& 0x7f) << shift
;
544 if (0 == (byte
& 0x80)) { break ; }
546 /* as spec: sign bit of byte is 2nd high order bit (80x40)
547 * -> 0x80 is used as flag.
549 if ((shift
< size
) && (byte
& 0x40)) {
550 ret
|= - (1 << shift
);
555 static const char* dwarf2_debug_ctx(dwarf2_parse_context_t
* ctx
)
557 /*return wine_dbg_sprintf("ctx(0x%x,%u)", ctx->data - ctx->start_data, ctx->level); */
558 return wine_dbg_sprintf("ctx(0x%x,%u)", ctx
->data
- ctx
->data_stream
, ctx
->level
);
560 static const char* dwarf2_debug_attr(dwarf2_abbrev_entry_attr_t
* attr
)
562 return wine_dbg_sprintf("attr(attr:0x%lx,form:0x%lx)", attr
->attribute
, attr
->form
);
565 static void dwarf2_check_sibling(dwarf2_parse_context_t
* ctx
, unsigned long next_sibling
)
567 if (0 < next_sibling
&& ctx
->data
!= ctx
->data_stream
+ next_sibling
) {
568 if ((ctx
->data
+ 1) != ctx
->data_stream
+ next_sibling
) {
570 WARN("cursor error for %s should be sibling<0x%lx>\n", dwarf2_debug_ctx(ctx
), next_sibling
);
572 ctx
->data
= ctx
->data_stream
+ next_sibling
;
577 static dwarf2_abbrev_entry_attr_t
* dwarf2_abbrev_entry_add_attr(dwarf2_abbrev_entry_t
* abbrev_entry
, unsigned long attribute
, unsigned long form
)
579 dwarf2_abbrev_entry_attr_t
* ret
= NULL
;
580 dwarf2_abbrev_entry_attr_t
* it
= NULL
;
582 assert( NULL
!= abbrev_entry
);
583 ret
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(dwarf2_abbrev_entry_attr_t
));
584 assert( NULL
!= ret
);
586 ret
->attribute
= attribute
;
590 if (NULL
== abbrev_entry
->attrs
) {
591 abbrev_entry
->attrs
= ret
;
593 for (it
= abbrev_entry
->attrs
; NULL
!= it
->next
; it
= it
->next
) ;
599 static dwarf2_abbrev_entry_t
* dwarf2_abbrev_table_add_entry(dwarf2_abbrev_table_t
* abbrev_table
, unsigned long entry_code
, unsigned long tag
, unsigned char have_child
)
601 dwarf2_abbrev_entry_t
* ret
= NULL
;
603 assert( NULL
!= abbrev_table
);
604 ret
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(dwarf2_abbrev_entry_t
));
605 assert( NULL
!= ret
);
607 TRACE("(table:%p,n_entries:%u) entry_code(%lu) tag(0x%lx) have_child(%u) -> %p\n", abbrev_table
, abbrev_table
->n_entries
, entry_code
, tag
, have_child
, ret
);
609 ret
->entry_code
= entry_code
;
611 ret
->have_child
= have_child
;
614 ret
->next
= abbrev_table
->first
;
615 abbrev_table
->first
= ret
;
616 abbrev_table
->n_entries
++;
620 static dwarf2_abbrev_entry_t
* dwarf2_abbrev_table_find_entry(dwarf2_abbrev_table_t
* abbrev_table
, unsigned long entry_code
)
622 dwarf2_abbrev_entry_t
* ret
= NULL
;
624 assert( NULL
!= abbrev_table
);
625 for (ret
= abbrev_table
->first
; ret
; ret
= ret
->next
) {
626 if (ret
->entry_code
== entry_code
) { break ; }
631 static void dwarf2_abbrev_table_free(dwarf2_abbrev_table_t
* abbrev_table
)
633 dwarf2_abbrev_entry_t
* entry
= NULL
;
634 dwarf2_abbrev_entry_t
* next_entry
= NULL
;
635 assert( NULL
!= abbrev_table
);
636 for (entry
= abbrev_table
->first
; NULL
!= entry
; entry
= next_entry
) {
637 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
638 dwarf2_abbrev_entry_attr_t
* next_attr
= NULL
;
639 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= next_attr
) {
640 next_attr
= attr
->next
;
641 HeapFree(GetProcessHeap(), 0, attr
);
643 next_entry
= entry
->next
;
644 HeapFree(GetProcessHeap(), 0, entry
);
646 abbrev_table
->first
= NULL
;
647 abbrev_table
->n_entries
= 0;
650 static dwarf2_abbrev_table_t
* dwarf2_parse_abbrev_set(dwarf2_parse_context_t
* abbrev_ctx
)
652 dwarf2_abbrev_table_t
* abbrev_table
= NULL
;
654 TRACE("%s, end at %p\n", dwarf2_debug_ctx(abbrev_ctx
), abbrev_ctx
->end_data
);
656 assert( NULL
!= abbrev_ctx
);
657 abbrev_table
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(dwarf2_abbrev_table_t
));
658 assert( NULL
!= abbrev_table
);
660 while (abbrev_ctx
->data
< abbrev_ctx
->end_data
) {
661 unsigned long entry_code
;
663 unsigned char have_child
;
664 dwarf2_abbrev_entry_t
* abbrev_entry
;
666 TRACE("now at %s\n", dwarf2_debug_ctx(abbrev_ctx
));
667 entry_code
= dwarf2_leb128_as_unsigned(abbrev_ctx
);
668 TRACE("found entry_code %lu\n", entry_code
);
669 if (0 == entry_code
) {
670 TRACE("NULL entry code at %s\n", dwarf2_debug_ctx(abbrev_ctx
));
673 tag
= dwarf2_leb128_as_unsigned(abbrev_ctx
);
674 have_child
= dwarf2_parse_byte(abbrev_ctx
);
676 abbrev_entry
= dwarf2_abbrev_table_add_entry(abbrev_table
, entry_code
, tag
, have_child
);
677 assert( NULL
!= abbrev_entry
);
679 unsigned long attribute
;
681 attribute
= dwarf2_leb128_as_unsigned(abbrev_ctx
);
682 form
= dwarf2_leb128_as_unsigned(abbrev_ctx
);
683 if (0 == attribute
) break;
684 dwarf2_abbrev_entry_add_attr(abbrev_entry
, attribute
, form
);
688 TRACE("found %u entries\n", abbrev_table
->n_entries
);
692 static const char* dwarf2_parse_attr_as_string(dwarf2_abbrev_entry_attr_t
* attr
,
693 dwarf2_parse_context_t
* ctx
)
695 const char* ret
= NULL
;
696 switch (attr
->form
) {
698 ret
= (const char*) ctx
->data
;
699 ctx
->data
+= strlen(ret
) + 1;
703 unsigned long offset
= dwarf2_parse_u4(ctx
);
704 ret
= (const char*) ctx
->str_section
+ offset
;
705 /*FIXME("Unsupported indirect string format offset 0x%lx (in .debug_str)\n", offset);*/
709 ERR("Unsupported string format 0x%lx for attr 0x%lx\n", attr
->form
, attr
->attribute
);
714 static unsigned long dwarf2_parse_attr_as_addr(dwarf2_abbrev_entry_attr_t
* attr
,
715 dwarf2_parse_context_t
* ctx
)
717 unsigned long offset
= 0;
718 switch (ctx
->word_size
) {
720 offset
= *(const unsigned int*) ctx
->data
;
724 FIXME("Unsupported Word Size %u\n", ctx
->word_size
);
726 ctx
->data
+= ctx
->word_size
;
730 static unsigned long dwarf2_parse_attr_as_ref(dwarf2_abbrev_entry_attr_t
* attr
,
731 dwarf2_parse_context_t
* ctx
)
733 unsigned long uvalue
= 0;
734 switch (attr
->form
) {
736 uvalue
= ctx
->offset
+ dwarf2_parse_byte(ctx
);
737 TRACE("ref1<0x%lx>\n", uvalue
);
741 uvalue
= ctx
->offset
+ dwarf2_parse_u2(ctx
);
742 TRACE("ref2<0x%lx>\n", uvalue
);
746 uvalue
= ctx
->offset
+ dwarf2_parse_u4(ctx
);
747 TRACE("ref4<0x%lx>\n", uvalue
);
751 /* FIXME: 64bits support */
753 uvalue = ctx->offset + dwarf2_parse_u8(ctx);
754 TRACE("ref8<0x%lx>\n", uvalue);
763 static unsigned long dwarf2_parse_attr_as_data(dwarf2_abbrev_entry_attr_t
* attr
,
764 dwarf2_parse_context_t
* ctx
)
766 unsigned long uvalue
= 0;
767 switch (attr
->form
) {
769 uvalue
= dwarf2_parse_byte(ctx
);
770 TRACE("data1<%lu>\n", uvalue
);
774 uvalue
= dwarf2_parse_u2(ctx
);
775 TRACE("data2<%lu>\n", uvalue
);
779 uvalue
= dwarf2_parse_u4(ctx
);
780 TRACE("data4<%lu>\n", uvalue
);
784 FIXME("Unsupported 64bits support\n");
791 static void dwarf2_parse_attr(dwarf2_abbrev_entry_attr_t
* attr
,
792 dwarf2_parse_context_t
* ctx
)
794 const unsigned long attribute
= attr
->attribute
;
795 const unsigned long form
= attr
->form
;
796 unsigned long uvalue
= 0;
798 const char* str
= NULL
;
800 TRACE("(attr:0x%lx,form:0x%lx)\n", attribute
, form
);
803 case DW_FORM_ref_addr
:
805 uvalue
= dwarf2_parse_attr_as_addr(attr
, ctx
);
809 uvalue
= dwarf2_parse_byte(ctx
);
810 TRACE("flag<0x%lx>\n", uvalue
);
814 uvalue
= dwarf2_parse_byte(ctx
);
815 TRACE("data1<%lu>\n", uvalue
);
819 uvalue
= dwarf2_parse_u2(ctx
);
820 TRACE("data2<%lu>\n", uvalue
);
824 uvalue
= dwarf2_parse_u4(ctx
);
825 TRACE("data4<%lu>\n", uvalue
);
832 uvalue
= dwarf2_parse_attr_as_ref(attr
, ctx
);
833 /*TRACE("ref<0x%lx>\n", ctx->offset + uvalue);*/
837 FIXME("Unsupported 64bits support\n");
842 svalue
= dwarf2_leb128_as_signed(ctx
);
845 case DW_FORM_ref_udata
:
847 uvalue
= dwarf2_leb128_as_unsigned(ctx
);
852 str
= dwarf2_parse_attr_as_string(attr
, ctx
);
853 TRACE("string<%s>\n", str
);
857 uvalue
= dwarf2_leb128_as_unsigned(ctx
);
862 uvalue
= dwarf2_parse_byte(ctx
);
867 uvalue
= dwarf2_parse_u2(ctx
);
872 uvalue
= dwarf2_parse_u4(ctx
);
881 static struct symt
* dwarf2_find_symt_by_ref(struct module
* module
, unsigned long ref
)
883 TRACE("want ref<0x%lx>\n", ref
);
887 static struct symt
* dwarf2_add_symt_ref(struct module
* module
, unsigned long ref
, struct symt
* symt
)
889 if (NULL
!= symt
) return NULL
;
893 static struct symt_basic
* dwarf2_parse_base_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
895 struct symt_basic
* symt
= NULL
;
896 const char* name
= NULL
;
898 unsigned encoding
= 0;
900 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
902 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
904 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
905 switch (attr
->attribute
) {
907 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
908 TRACE("found name %s\n", name
);
910 case DW_AT_byte_size
:
911 size
= dwarf2_parse_byte(ctx
);
914 encoding
= dwarf2_parse_byte(ctx
);
917 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
918 dwarf2_parse_attr(attr
, ctx
);
922 case DW_ATE_void
: bt
= btVoid
; break;
923 case DW_ATE_address
: bt
= btULong
; break;
924 case DW_ATE_boolean
: bt
= btBool
; break;
925 case DW_ATE_complex_float
: bt
= btComplex
; break;
926 case DW_ATE_float
: bt
= btFloat
; break;
927 case DW_ATE_signed
: bt
= btInt
; break;
928 case DW_ATE_unsigned
: bt
= btUInt
; break;
929 case DW_ATE_signed_char
: bt
= btChar
; break;
930 case DW_ATE_unsigned_char
: bt
= btChar
; break;
934 /*TRACE("symt_new_basic(%p, %u, %s, %u)", module, bt, name, size);*/
935 symt
= symt_new_basic(module
, bt
, name
, size
);
937 if (entry
->have_child
) {
938 FIXME("Unsupported children\n");
943 static struct symt_typedef
* dwarf2_parse_typedef(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
945 struct symt_typedef
* symt
= NULL
;
946 struct symt
* ref_type
= NULL
;
947 const char* name
= NULL
;
948 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
950 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
952 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
953 switch (attr
->attribute
) {
955 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
956 TRACE("found name %s\n", name
);
960 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
961 ref_type
= dwarf2_find_symt_by_ref(module
, ref
);
964 case DW_AT_decl_file
:
965 case DW_AT_decl_line
:
966 dwarf2_parse_attr(attr
, ctx
);
969 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
970 dwarf2_parse_attr(attr
, ctx
);
974 symt
= symt_new_typedef(module
, ref_type
, name
);
977 if (entry
->have_child
) {
978 FIXME("Unsupported children\n");
983 static struct symt_pointer
* dwarf2_parse_pointer_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
985 struct symt_pointer
* symt
= NULL
;
986 struct symt
* ref_type
= NULL
;
988 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
990 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
992 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
993 switch (attr
->attribute
) {
994 case DW_AT_byte_size
:
995 size
= dwarf2_parse_byte(ctx
);
999 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1000 ref_type
= dwarf2_find_symt_by_ref(module
, ref
);
1004 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1005 dwarf2_parse_attr(attr
, ctx
);
1008 symt
= symt_new_pointer(module
, ref_type
);
1010 if (entry
->have_child
) {
1011 FIXME("Unsupported children\n");
1016 static void dwarf2_parse_array_subrange_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_array
* parent
)
1020 struct symt
* idx_type
= NULL
;
1021 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1023 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1025 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1026 switch (attr
->attribute
) {
1029 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1030 idx_type
= dwarf2_find_symt_by_ref(module
, ref
);
1031 /** check if idx_type is a basic_type integer */
1034 case DW_AT_lower_bound
:
1035 TRACE("%s %s, lower_bound\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1036 min
= dwarf2_parse_attr_as_data(attr
, ctx
);
1038 case DW_AT_upper_bound
:
1039 TRACE("%s %s, upper_bound\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1040 max
= dwarf2_parse_attr_as_data(attr
, ctx
);
1043 TRACE("%s %s, count min:%u\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
), min
);
1044 max
= min
+ dwarf2_parse_attr_as_data(attr
, ctx
);
1047 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1048 dwarf2_parse_attr(attr
, ctx
);
1051 parent
->start
= min
;
1054 TRACE("found min:%u max:%u\n", min
, max
);
1056 if (entry
->have_child
) {
1057 FIXME("Unsupported children\n");
1062 static struct symt_array
* dwarf2_parse_array_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1064 struct symt_array
* symt
= NULL
;
1065 struct symt
* ref_type
= NULL
;
1068 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1069 unsigned long next_sibling
= 0;
1071 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1073 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1074 switch (attr
->attribute
) {
1076 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1080 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1081 ref_type
= dwarf2_find_symt_by_ref(module
, ref
);
1085 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1086 dwarf2_parse_attr(attr
, ctx
);
1090 symt
= symt_new_array(module
, min
, max
, ref_type
);
1092 if (entry
->have_child
) { /** any interest to not have child ? */
1094 while (ctx
->data
< ctx
->end_data
) {
1095 dwarf2_abbrev_entry_t
* entry
= NULL
;
1096 unsigned long entry_code
;
1097 unsigned long entry_ref
= 0;
1099 entry_ref
= ctx
->data
- ctx
->data_stream
;
1101 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1102 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1103 if (0 == entry_code
) {
1107 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1108 assert( NULL
!= entry
);
1110 switch (entry
->tag
) {
1111 case DW_TAG_subrange_type
:
1112 dwarf2_parse_array_subrange_type(module
, entry
, ctx
, symt
);
1116 dwarf2_abbrev_entry_attr_t
* attr
;
1117 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1118 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1119 dwarf2_parse_attr(attr
, ctx
);
1128 /** set correct data cursor */
1129 dwarf2_check_sibling(ctx
, next_sibling
);
1134 static struct symt_typedef
* dwarf2_parse_const_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1136 struct symt_typedef
* symt
= NULL
;
1137 struct symt
* ref_type
= NULL
;
1138 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1139 unsigned long next_sibling
= 0;
1141 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1143 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1144 switch (attr
->attribute
) {
1147 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1148 ref_type
= dwarf2_find_symt_by_ref(module
, ref
);
1152 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1153 dwarf2_parse_attr(attr
, ctx
);
1156 FIXME("need to generate a name\n");
1157 symt
= symt_new_typedef(module
, ref_type
, "");
1159 if (entry
->have_child
) {
1160 FIXME("Unsupported children\n");
1163 /** set correct data cursor */
1164 dwarf2_check_sibling(ctx
, next_sibling
);
1169 static struct symt_typedef
* dwarf2_parse_reference_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1171 struct symt_typedef
* symt
= NULL
;
1172 struct symt
* ref_type
= NULL
;
1173 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1174 unsigned long next_sibling
= 0;
1176 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1178 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1179 switch (attr
->attribute
) {
1181 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1185 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1186 ref_type
= dwarf2_find_symt_by_ref(module
, ref
);
1190 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1191 dwarf2_parse_attr(attr
, ctx
);
1194 FIXME("need to generate a name\n");
1195 symt
= symt_new_typedef(module
, ref_type
, "");
1197 if (entry
->have_child
) {
1198 FIXME("Unsupported children\n");
1201 /** set correct data cursor */
1202 dwarf2_check_sibling(ctx
, next_sibling
);
1207 static void dwarf2_parse_udt_member(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_udt
* parent
)
1209 struct symt
* elt_type
= NULL
;
1210 const char* name
= NULL
;
1211 unsigned long offset
= 0;
1213 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1214 unsigned long next_sibling
= 0;
1216 assert( NULL
!= parent
);
1218 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1220 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1221 switch (attr
->attribute
) {
1223 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1226 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1227 TRACE("found name %s\n", name
);
1231 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1232 elt_type
= dwarf2_find_symt_by_ref(module
, ref
);
1235 case DW_AT_data_member_location
:
1237 unsigned long uvalue
= 0;
1238 TRACE("found member_location at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1239 /*offset = dwarf2_parse_attr_as_data(attr, ctx);*/
1240 switch (attr
->form
) {
1242 uvalue
= dwarf2_leb128_as_unsigned(ctx
);
1244 case DW_FORM_block1
:
1245 uvalue
= dwarf2_parse_byte(ctx
);
1247 case DW_FORM_block2
:
1248 uvalue
= dwarf2_parse_u2(ctx
);
1250 case DW_FORM_block4
:
1251 uvalue
= dwarf2_parse_u4(ctx
);
1254 TRACE("Unhandled attr form at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1255 dwarf2_parse_attr(attr
, ctx
);
1258 unsigned char op
= dwarf2_parse_byte(ctx
);
1261 case DW_OP_plus_uconst
:
1262 offset
= dwarf2_leb128_as_unsigned(ctx
);
1265 TRACE("Unhandled attr op at %s, for %s, op:%u\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
), op
);
1266 ctx
->data
+= uvalue
;
1268 TRACE("found offset:%lu\n", offset
);
1272 case DW_AT_decl_file
:
1273 case DW_AT_decl_line
:
1274 dwarf2_parse_attr(attr
, ctx
);
1277 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1278 dwarf2_parse_attr(attr
, ctx
);
1281 symt_add_udt_element(module
, parent
, name
, elt_type
, offset
, size
);
1283 if (entry
->have_child
) {
1284 FIXME("Unsupported children\n");
1287 /** set correct data cursor */
1288 dwarf2_check_sibling(ctx
, next_sibling
);
1291 static void dwarf2_parse_udt_members(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_udt
* symt
)
1293 if (entry
->have_child
) { /** any interest to not have child ? */
1295 while (ctx
->data
< ctx
->end_data
) {
1296 dwarf2_abbrev_entry_t
* entry
= NULL
;
1297 unsigned long entry_code
;
1298 unsigned long entry_ref
= 0;
1300 entry_ref
= ctx
->data
- ctx
->data_stream
;
1302 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1303 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1304 if (0 == entry_code
) {
1308 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1309 assert( NULL
!= entry
);
1311 switch (entry
->tag
) {
1313 dwarf2_parse_udt_member(module
, entry
, ctx
, symt
);
1317 dwarf2_abbrev_entry_attr_t
* attr
;
1318 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1319 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1320 dwarf2_parse_attr(attr
, ctx
);
1330 static struct symt_udt
* dwarf2_parse_class_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1332 struct symt_udt
* symt
= NULL
;
1333 const char* name
= NULL
;
1335 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1336 unsigned long next_sibling
= 0;
1338 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1340 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1341 switch (attr
->attribute
) {
1343 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1346 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1347 TRACE("found name %s\n", name
);
1349 case DW_AT_byte_size
:
1350 size
= dwarf2_parse_byte(ctx
);
1352 case DW_AT_decl_file
:
1353 case DW_AT_decl_line
:
1354 dwarf2_parse_attr(attr
, ctx
);
1357 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1358 dwarf2_parse_attr(attr
, ctx
);
1361 symt
= symt_new_udt(module
, name
, size
, UdtClass
);
1362 dwarf2_parse_udt_members(module
, entry
, ctx
, symt
);
1364 /** set correct data cursor */
1365 dwarf2_check_sibling(ctx
, next_sibling
);
1370 static struct symt_udt
* dwarf2_parse_struct_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1372 struct symt_udt
* symt
= NULL
;
1373 const char* name
= NULL
;
1375 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1376 unsigned long next_sibling
= 0;
1378 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1380 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1381 switch (attr
->attribute
) {
1383 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1386 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1387 TRACE("found name %s\n", name
);
1389 case DW_AT_byte_size
:
1390 size
= dwarf2_parse_byte(ctx
);
1392 case DW_AT_decl_file
:
1393 case DW_AT_decl_line
:
1394 dwarf2_parse_attr(attr
, ctx
);
1397 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1398 dwarf2_parse_attr(attr
, ctx
);
1401 symt
= symt_new_udt(module
, name
, size
, UdtStruct
);
1402 dwarf2_parse_udt_members(module
, entry
, ctx
, symt
);
1404 /** set correct data cursor */
1405 dwarf2_check_sibling(ctx
, next_sibling
);
1410 static struct symt_udt
* dwarf2_parse_union_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1412 struct symt_udt
* symt
= NULL
;
1413 const char* name
= NULL
;
1415 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1416 unsigned long next_sibling
= 0;
1418 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1420 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1421 switch (attr
->attribute
) {
1423 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1426 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1427 TRACE("found name %s\n", name
);
1429 case DW_AT_byte_size
:
1430 size
= dwarf2_parse_byte(ctx
);
1432 case DW_AT_decl_file
:
1433 case DW_AT_decl_line
:
1434 dwarf2_parse_attr(attr
, ctx
);
1437 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1438 dwarf2_parse_attr(attr
, ctx
);
1441 symt
= symt_new_udt(module
, name
, size
, UdtUnion
);
1442 dwarf2_parse_udt_members(module
, entry
, ctx
, symt
);
1444 /** set correct data cursor */
1445 dwarf2_check_sibling(ctx
, next_sibling
);
1450 static void dwarf2_parse_enumerator(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_enum
* parent
)
1452 const char* name
= NULL
;
1454 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1456 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1458 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1459 switch (attr
->attribute
) {
1461 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1462 TRACE("found name %s\n", name
);
1464 case DW_AT_const_value
:
1465 switch (attr
->form
) {
1467 value
= dwarf2_leb128_as_signed(ctx
);
1468 TRACE("found value %ld\n", value
);
1471 value
= dwarf2_leb128_as_unsigned(ctx
);
1472 TRACE("found value %ld\n", value
);
1475 TRACE("Unhandled attr form at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1476 dwarf2_parse_attr(attr
, ctx
);
1480 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1481 dwarf2_parse_attr(attr
, ctx
);
1484 symt_add_enum_element(module
, parent
, name
, value
);
1486 if (entry
->have_child
) {
1487 FIXME("Unsupported children\n");
1491 static struct symt_enum
* dwarf2_parse_enumeration_type(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1493 struct symt_enum
* symt
= NULL
;
1494 const char* name
= NULL
;
1495 unsigned long size
= 0;
1496 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1497 unsigned long next_sibling
= 0;
1499 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1501 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1502 switch (attr
->attribute
) {
1504 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1507 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1508 TRACE("found name %s\n", name
);
1510 case DW_AT_byte_size
:
1511 size
= dwarf2_parse_attr_as_data(attr
, ctx
);
1513 case DW_AT_decl_file
:
1514 case DW_AT_decl_line
:
1515 dwarf2_parse_attr(attr
, ctx
);
1518 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1519 dwarf2_parse_attr(attr
, ctx
);
1522 symt
= symt_new_enum(module
, name
);
1524 if (entry
->have_child
) { /** any interest to not have child ? */
1526 while (ctx
->data
< ctx
->end_data
) {
1527 dwarf2_abbrev_entry_t
* entry
= NULL
;
1528 unsigned long entry_code
;
1529 unsigned long entry_ref
= 0;
1531 entry_ref
= ctx
->data
- ctx
->data_stream
;
1533 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1534 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1535 if (0 == entry_code
) {
1539 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1540 assert( NULL
!= entry
);
1542 switch (entry
->tag
) {
1543 case DW_TAG_enumerator
:
1544 dwarf2_parse_enumerator(module
, entry
, ctx
, symt
);
1548 dwarf2_abbrev_entry_attr_t
* attr
;
1549 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1550 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1551 dwarf2_parse_attr(attr
, ctx
);
1560 /** set correct data cursor */
1561 dwarf2_check_sibling(ctx
, next_sibling
);
1566 static void dwarf2_parse_variable(struct module
* module
,
1567 dwarf2_abbrev_entry_t
* entry
,
1568 dwarf2_parse_context_t
* ctx
)
1570 struct symt
* var_type
= NULL
;
1571 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1572 const char* name
= NULL
;
1573 unsigned long next_sibling
= 0;
1575 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1577 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1578 switch (attr
->attribute
) {
1580 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1584 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1585 var_type
= dwarf2_find_symt_by_ref(module
, ref
);
1589 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1590 TRACE("found name %s\n", name
);
1592 case DW_AT_decl_file
:
1593 case DW_AT_decl_line
:
1594 dwarf2_parse_attr(attr
, ctx
);
1597 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1598 dwarf2_parse_attr(attr
, ctx
);
1602 if (entry
->have_child
) {
1603 FIXME("Unsupported children\n");
1606 /** set correct data cursor */
1607 dwarf2_check_sibling(ctx
, next_sibling
);
1610 static void dwarf2_parse_subprogram_parameter(struct module
* module
,
1611 dwarf2_abbrev_entry_t
* entry
,
1612 dwarf2_parse_context_t
* ctx
,
1613 struct symt_function_signature
* sig_type
,
1614 struct symt_function
* func_type
)
1616 struct symt
* param_type
= NULL
;
1617 const char* name
= NULL
;
1618 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1619 unsigned long next_sibling
= 0;
1621 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1623 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1624 switch (attr
->attribute
) {
1626 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1630 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1631 param_type
= dwarf2_find_symt_by_ref(module
, ref
);
1635 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1636 TRACE("found name %s\n", name
);
1638 case DW_AT_decl_file
:
1639 case DW_AT_decl_line
:
1640 dwarf2_parse_attr(attr
, ctx
);
1642 case DW_AT_location
:
1643 dwarf2_parse_attr(attr
, ctx
);
1646 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1647 dwarf2_parse_attr(attr
, ctx
);
1650 if (NULL
!= sig_type
) {
1651 symt_add_function_signature_parameter(module
, sig_type
, param_type
);
1654 if (entry
->have_child
) {
1655 FIXME("Unsupported children\n");
1658 /** set correct data cursor */
1659 dwarf2_check_sibling(ctx
, next_sibling
);
1662 static void dwarf2_parse_inlined_subroutine(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
1664 const char* name
= NULL
;
1665 unsigned long addr
= 0;
1666 unsigned long low_pc
= 0;
1667 unsigned long high_pc
= 0;
1669 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1670 unsigned long next_sibling
= 0;
1672 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1674 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1675 switch (attr
->attribute
) {
1677 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1680 low_pc
= dwarf2_parse_attr_as_addr(attr
, ctx
);
1681 addr
= module
->module
.BaseOfImage
+ low_pc
;
1684 high_pc
= dwarf2_parse_attr_as_addr(attr
, ctx
);
1685 size
= high_pc
- low_pc
;
1688 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1689 TRACE("found name %s\n", name
);
1691 case DW_AT_decl_file
:
1692 case DW_AT_decl_line
:
1693 dwarf2_parse_attr(attr
, ctx
);
1696 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1697 dwarf2_parse_attr(attr
, ctx
);
1701 if (entry
->have_child
) { /** any interest to not have child ? */
1703 while (ctx
->data
< ctx
->end_data
) {
1704 dwarf2_abbrev_entry_t
* entry
= NULL
;
1705 unsigned long entry_code
;
1706 unsigned long entry_ref
= 0;
1708 entry_ref
= ctx
->data
- ctx
->data_stream
;
1710 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1711 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1712 if (0 == entry_code
) {
1716 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1717 assert( NULL
!= entry
);
1719 switch (entry
->tag
) {
1720 case DW_TAG_formal_parameter
:
1721 dwarf2_parse_subprogram_parameter(module
, entry
, ctx
, NULL
, NULL
);
1723 case DW_TAG_variable
:
1724 dwarf2_parse_variable(module
, entry
, ctx
);
1729 dwarf2_abbrev_entry_attr_t
* attr
;
1730 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1731 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1732 dwarf2_parse_attr(attr
, ctx
);
1741 /** set correct data cursor */
1742 dwarf2_check_sibling(ctx
, next_sibling
);
1746 static void dwarf2_parse_subprogram_block(struct module
* module
,
1747 dwarf2_abbrev_entry_t
* entry
,
1748 dwarf2_parse_context_t
* ctx
,
1749 struct symt_function_signature
* sig_type
,
1750 struct symt_function
* func_type
)
1752 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1753 const char* name
= NULL
;
1754 unsigned long next_sibling
= 0;
1756 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1758 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1759 switch (attr
->attribute
) {
1761 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1764 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1765 TRACE("found name %s\n", name
);
1767 case DW_AT_decl_file
:
1768 case DW_AT_decl_line
:
1769 dwarf2_parse_attr(attr
, ctx
);
1771 case DW_AT_ranges
: /** what to do ? */
1772 dwarf2_parse_attr(attr
, ctx
);
1775 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1776 dwarf2_parse_attr(attr
, ctx
);
1780 if (entry
->have_child
) { /** any interest to not have child ? */
1782 while (ctx
->data
< ctx
->end_data
) {
1783 dwarf2_abbrev_entry_t
* entry
= NULL
;
1784 unsigned long entry_code
;
1785 unsigned long entry_ref
= 0;
1787 entry_ref
= ctx
->data
- ctx
->data_stream
;
1789 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1790 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1791 if (0 == entry_code
) {
1795 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1796 assert( NULL
!= entry
);
1798 switch (entry
->tag
) {
1799 case DW_TAG_inlined_subroutine
:
1800 dwarf2_parse_inlined_subroutine(module
, entry
, ctx
);
1802 case DW_TAG_variable
:
1803 dwarf2_parse_variable(module
, entry
, ctx
);
1808 dwarf2_abbrev_entry_attr_t
* attr
;
1809 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1810 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1811 dwarf2_parse_attr(attr
, ctx
);
1820 /** set correct data cursor */
1821 dwarf2_check_sibling(ctx
, next_sibling
);
1824 static void dwarf2_parse_subprogram_content(struct module
* module
,
1825 dwarf2_abbrev_entry_t
* entry
,
1826 dwarf2_parse_context_t
* ctx
,
1827 struct symt_function_signature
* sig_type
,
1828 struct symt_function
* func_type
)
1830 if (entry
->have_child
) { /** any interest to not have child ? */
1832 while (ctx
->data
< ctx
->end_data
) {
1833 dwarf2_abbrev_entry_t
* entry
= NULL
;
1834 unsigned long entry_code
;
1835 unsigned long entry_ref
= 0;
1837 entry_ref
= ctx
->data
- ctx
->data_stream
;
1839 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1840 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1841 if (0 == entry_code
) {
1845 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1846 assert( NULL
!= entry
);
1848 switch (entry
->tag
) {
1849 case DW_TAG_formal_parameter
:
1850 dwarf2_parse_subprogram_parameter(module
, entry
, ctx
, sig_type
, func_type
);
1852 case DW_TAG_lexical_block
:
1853 dwarf2_parse_subprogram_block(module
, entry
, ctx
, sig_type
, func_type
);
1855 case DW_TAG_variable
:
1856 dwarf2_parse_variable(module
, entry
, ctx
);
1861 dwarf2_abbrev_entry_attr_t
* attr
;
1862 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1863 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1864 dwarf2_parse_attr(attr
, ctx
);
1874 static struct symt_function
* dwarf2_parse_subprogram(struct module
* module
, dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_compiland
* compiland
)
1876 struct symt_function
* func_type
= NULL
;
1877 const char* name
= NULL
;
1878 struct symt
* ret_type
= NULL
;
1879 struct symt_function_signature
* sig_type
= NULL
;
1880 unsigned long addr
= 0;
1881 unsigned long low_pc
= 0;
1882 unsigned long high_pc
= 0;
1884 unsigned char is_decl
= 0;
1885 unsigned char inl_flags
= 0;
1886 unsigned char decl_file
= 0;
1887 unsigned char decl_line
= 0;
1888 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
1889 unsigned long next_sibling
= 0;
1890 enum CV_call_e call_conv
= CV_CALL_FAR_C
; /* FIXME: assuming C source code */
1893 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx
), entry
->entry_code
);
1895 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
1896 switch (attr
->attribute
) {
1898 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1901 low_pc
= dwarf2_parse_attr_as_addr(attr
, ctx
);
1902 addr
= module
->module
.BaseOfImage
+ low_pc
;
1905 high_pc
= dwarf2_parse_attr_as_addr(attr
, ctx
);
1906 size
= high_pc
- low_pc
;
1909 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
1910 TRACE("found name %s\n", name
);
1914 unsigned long ref
= dwarf2_parse_attr_as_ref(attr
, ctx
);
1915 ret_type
= dwarf2_find_symt_by_ref(module
, ref
);
1918 case DW_AT_declaration
:
1919 is_decl
= dwarf2_parse_byte(ctx
);
1922 inl_flags
= dwarf2_parse_byte(ctx
);
1924 case DW_AT_calling_convention
:
1925 switch (cc
= dwarf2_parse_byte(ctx
))
1927 case DW_CC_normal
: break;
1928 case DW_CC_nocall
: call_conv
= -1;
1929 default: FIXME("Unsupported calling convention %d\n", cc
);
1932 /* not work yet, need parsing .debug_line and using Compil Unit stmt_list
1933 case DW_AT_decl_file:
1934 decl_file = dwarf2_parse_byte(ctx);
1936 case DW_AT_decl_line:
1937 decl_line = dwarf2_parse_byte(ctx);
1941 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
1942 dwarf2_parse_attr(attr
, ctx
);
1945 sig_type
= symt_new_function_signature(module
, ret_type
, call_conv
);
1947 func_type
= symt_new_function(module
, compiland
, name
, addr
, size
, &sig_type
->symt
);
1948 if (low_pc
&& high_pc
) {
1949 symt_add_function_point(module
, func_type
, SymTagFuncDebugStart
, low_pc
, NULL
);
1950 symt_add_function_point(module
, func_type
, SymTagFuncDebugEnd
, high_pc
, NULL
);
1952 if (decl_file
&& decl_line
) {
1953 symt_add_func_line(module
, func_type
, decl_file
, decl_line
, low_pc
);
1956 dwarf2_parse_subprogram_content(module
, entry
, ctx
, sig_type
, func_type
);
1957 symt_normalize_function(module
, func_type
);
1959 /** set correct data cursor */
1960 dwarf2_check_sibling(ctx
, next_sibling
);
1965 static void dwarf2_parse_compiland_content(struct module
* module
, const dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
, struct symt_compiland
* compiland
)
1967 if (entry
->have_child
) { /** any interest to not have child ? */
1969 while (ctx
->data
< ctx
->end_data
) {
1970 dwarf2_abbrev_entry_t
* entry
= NULL
;
1971 unsigned long entry_code
;
1972 unsigned long entry_ref
= 0;
1974 entry_ref
= ctx
->data
- ctx
->data_stream
;
1976 entry_code
= dwarf2_leb128_as_unsigned(ctx
);
1977 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
1978 if (0 == entry_code
) {
1982 entry
= dwarf2_abbrev_table_find_entry(ctx
->abbrev_table
, entry_code
);
1983 assert( NULL
!= entry
);
1985 switch (entry
->tag
) {
1986 case DW_TAG_typedef
:
1988 struct symt_typedef
* symt
= dwarf2_parse_typedef(module
, entry
, ctx
);
1989 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
1992 case DW_TAG_base_type
:
1994 struct symt_basic
* symt
= dwarf2_parse_base_type(module
, entry
, ctx
);
1995 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
1998 case DW_TAG_pointer_type
:
2000 struct symt_pointer
* symt
= dwarf2_parse_pointer_type(module
, entry
, ctx
);
2001 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2004 case DW_TAG_class_type
:
2006 struct symt_udt
* symt
= dwarf2_parse_class_type(module
, entry
, ctx
);
2007 if (NULL
!= symt
) dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2010 case DW_TAG_structure_type
:
2012 struct symt_udt
* symt
= dwarf2_parse_struct_type(module
, entry
, ctx
);
2013 if (NULL
!= symt
) dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2016 case DW_TAG_union_type
:
2018 struct symt_udt
* symt
= dwarf2_parse_union_type(module
, entry
, ctx
);
2019 if (NULL
!= symt
) dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2022 case DW_TAG_array_type
:
2024 struct symt_array
* symt
= dwarf2_parse_array_type(module
, entry
, ctx
);
2025 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2028 case DW_TAG_const_type
:
2030 struct symt_typedef
* symt
= dwarf2_parse_const_type(module
, entry
, ctx
);
2031 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2034 case DW_TAG_reference_type
:
2036 struct symt_typedef
* symt
= dwarf2_parse_reference_type(module
, entry
, ctx
);
2037 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2040 case DW_TAG_enumeration_type
:
2042 struct symt_enum
* symt
= dwarf2_parse_enumeration_type(module
, entry
, ctx
);
2043 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2046 case DW_TAG_subprogram
:
2048 struct symt_function
* symt
= dwarf2_parse_subprogram(module
, entry
, ctx
, compiland
);
2049 if (NULL
!= symt
) dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2055 dwarf2_abbrev_entry_attr_t
* attr
;
2056 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(ctx
), entry
->entry_code
);
2057 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
2058 dwarf2_parse_attr(attr
, ctx
);
2068 static struct symt_compiland
* dwarf2_parse_compiland(struct module
* module
, const dwarf2_abbrev_entry_t
* entry
, dwarf2_parse_context_t
* ctx
)
2070 struct symt_compiland
* compiland
= NULL
;
2071 const char* name
= NULL
;
2072 unsigned long next_sibling
= 0;
2073 dwarf2_abbrev_entry_attr_t
* attr
= NULL
;
2075 TRACE("beginning at Ox%x, for %lu\n", ctx
->data
- ctx
->start_data
, entry
->entry_code
);
2077 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
2078 switch (attr
->attribute
) {
2080 next_sibling
= dwarf2_parse_attr_as_ref(attr
, ctx
);
2083 name
= dwarf2_parse_attr_as_string(attr
, ctx
);
2084 TRACE("found name %s\n", name
);
2087 TRACE("Unhandled attr at %s, for %s\n", dwarf2_debug_ctx(ctx
), dwarf2_debug_attr(attr
));
2088 dwarf2_parse_attr(attr
, ctx
);
2091 compiland
= symt_new_compiland(module
, name
);
2092 dwarf2_parse_compiland_content(module
, entry
, ctx
, compiland
);
2094 dwarf2_check_sibling(ctx
, next_sibling
);
2099 BOOL
dwarf2_parse(struct module
* module
, unsigned long load_offset
,
2100 const unsigned char* debug
, unsigned int debug_size
,
2101 const unsigned char* abbrev
, unsigned int abbrev_size
,
2102 const unsigned char* str
, unsigned int str_sz
)
2104 const unsigned char* comp_unit_cursor
= debug
;
2105 const unsigned char* end_debug
= debug
+ debug_size
;
2108 while (comp_unit_cursor
< end_debug
) {
2109 dwarf2_abbrev_table_t
* abbrev_table
;
2110 const dwarf2_comp_unit_stream_t
* comp_unit_stream
;
2111 dwarf2_comp_unit_t comp_unit
;
2112 dwarf2_parse_context_t ctx
;
2113 dwarf2_parse_context_t abbrev_ctx
;
2114 struct symt_compiland
* compiland
= NULL
;
2116 comp_unit_stream
= (const dwarf2_comp_unit_stream_t
*) comp_unit_cursor
;
2118 comp_unit
.length
= *(unsigned long*) comp_unit_stream
->length
;
2119 comp_unit
.version
= *(unsigned short*) comp_unit_stream
->version
;
2120 comp_unit
.abbrev_offset
= *(unsigned long*) comp_unit_stream
->abbrev_offset
;
2121 comp_unit
.word_size
= *(unsigned char*) comp_unit_stream
->word_size
;
2123 TRACE("Compilation Unit Herder found at 0x%x:\n", comp_unit_cursor
- debug
);
2124 TRACE("- length: %lu\n", comp_unit
.length
);
2125 TRACE("- version: %u\n", comp_unit
.version
);
2126 TRACE("- abbrev_offset: %lu\n", comp_unit
.abbrev_offset
);
2127 TRACE("- word_size: %u\n", comp_unit
.word_size
);
2129 ctx
.data_stream
= debug
;
2130 ctx
.data
= ctx
.start_data
= comp_unit_cursor
+ sizeof(dwarf2_comp_unit_stream_t
);
2131 ctx
.offset
= comp_unit_cursor
- debug
;
2132 ctx
.word_size
= comp_unit
.word_size
;
2133 ctx
.str_section
= str
;
2136 comp_unit_cursor
+= comp_unit
.length
+ sizeof(unsigned);
2137 ctx
.end_data
= comp_unit_cursor
;
2139 if (2 != comp_unit
.version
) {
2140 WARN("%u DWARF version unsupported. Wine dbghelp only support DWARF 2.\n", comp_unit
.version
);
2144 abbrev_ctx
.abbrev_table
= NULL
;
2145 abbrev_ctx
.data_stream
= abbrev
;
2146 abbrev_ctx
.data
= abbrev_ctx
.start_data
= abbrev
+ comp_unit
.abbrev_offset
;
2147 abbrev_ctx
.end_data
= abbrev
+ abbrev_size
;
2148 abbrev_ctx
.offset
= comp_unit
.abbrev_offset
;
2149 abbrev_ctx
.str_section
= str
;
2150 abbrev_table
= dwarf2_parse_abbrev_set(&abbrev_ctx
);
2152 ctx
.abbrev_table
= abbrev_table
;
2154 while (ctx
.data
< ctx
.end_data
) {
2155 const dwarf2_abbrev_entry_t
* entry
= NULL
;
2156 unsigned long entry_code
;
2157 unsigned long entry_ref
= 0;
2159 entry_ref
= ctx
.data
- ctx
.data_stream
;
2161 entry_code
= dwarf2_leb128_as_unsigned(&ctx
);
2162 TRACE("found entry_code %lu at 0x%lx\n", entry_code
, entry_ref
);
2163 if (0 == entry_code
) {
2166 entry
= dwarf2_abbrev_table_find_entry(abbrev_table
, entry_code
);
2167 if (NULL
== entry
) {
2168 WARN("Cannot find abbrev entry for %lu at 0x%lx\n", entry_code
, entry_ref
);
2169 dwarf2_abbrev_table_free(abbrev_table
);
2173 switch (entry
->tag
) {
2174 case DW_TAG_compile_unit
:
2176 struct symt_compiland
* symt
= dwarf2_parse_compiland(module
, entry
, &ctx
);
2177 dwarf2_add_symt_ref(module
, entry_ref
, &symt
->symt
);
2183 dwarf2_abbrev_entry_attr_t
* attr
;
2184 TRACE("Unhandled Tag type 0x%lx at %s, for %lu\n", entry
->tag
, dwarf2_debug_ctx(&ctx
), entry
->entry_code
);
2185 for (attr
= entry
->attrs
; NULL
!= attr
; attr
= attr
->next
) {
2186 dwarf2_parse_attr(attr
, &ctx
);
2192 dwarf2_abbrev_table_free(abbrev_table
);