2 * File dwarf.c - read dwarf2 information from the ELF modules
4 * Copyright (C) 2005, Raphael Junqueira
5 * Copyright (C) 2006, Eric Pouech
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #define NONAMELESSUNION
26 #include <sys/types.h>
28 #ifdef HAVE_SYS_STAT_H
29 # include <sys/stat.h>
31 #ifdef HAVE_SYS_MMAN_H
42 #define PATH_MAX MAX_PATH
53 #include "dbghelp_private.h"
55 #include "wine/debug.h"
57 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp_dwarf);
61 * o unspecified parameters
63 * o Debug{Start|End}Point
66 * o proper types loading (nesting)
70 static void dump(const void* ptr, unsigned len)
74 static const char hexof[] = "0123456789abcdef";
77 for (i = 0; i < len; i += 16)
79 sprintf(msg, "%08x: ", i);
80 memset(msg + 10, ' ', 3 * 16 + 1 + 16);
81 for (j = 0; j < min(16, len - i); j++)
83 msg[10 + 3 * j + 0] = hexof[x[i + j] >> 4];
84 msg[10 + 3 * j + 1] = hexof[x[i + j] & 15];
85 msg[10 + 3 * j + 2] = ' ';
86 msg[10 + 3 * 16 + 1 + j] = (x[i + j] >= 0x20 && x[i + j] < 0x7f) ?
89 msg[10 + 3 * 16] = ' ';
90 msg[10 + 3 * 16 + 1 + 16] = '\0';
99 * http://www.eagercon.com/dwarf/dwarf3std.htm
100 * http://www.eagercon.com/dwarf/dwarf-2.0.0.pdf
102 * dwarf2.h: http://www.hakpetzna.com/b/binutils/dwarf2_8h-source.html
104 * example of projects who do dwarf2 parsing:
105 * http://www.x86-64.org/cgi-bin/cvsweb.cgi/binutils.dead/binutils/readelf.c?rev=1.1.1.2
106 * http://elis.ugent.be/diota/log/ltrace_elf.c
114 typedef struct dwarf2_abbrev_entry_attr_s
116 unsigned long attribute;
118 struct dwarf2_abbrev_entry_attr_s* next;
119 } dwarf2_abbrev_entry_attr_t;
121 typedef struct dwarf2_abbrev_entry_s
123 unsigned long entry_code;
125 unsigned char have_child;
127 dwarf2_abbrev_entry_attr_t* attrs;
128 } dwarf2_abbrev_entry_t;
133 const unsigned char* ptr;
141 unsigned long uvalue;
144 struct dwarf2_block block;
148 typedef struct dwarf2_debug_info_s
150 const dwarf2_abbrev_entry_t*abbrev;
152 const unsigned char** data;
153 struct vector children;
154 } dwarf2_debug_info_t;
156 typedef struct dwarf2_section_s
158 const unsigned char* address;
162 enum dwarf2_sections {section_debug, section_string, section_abbrev, section_line, section_max};
164 typedef struct dwarf2_traverse_context_s
166 const unsigned char* data;
167 const unsigned char* start_data;
168 const unsigned char* end_data;
169 unsigned char word_size;
170 } dwarf2_traverse_context_t;
172 /* symt_cache indexes */
179 typedef struct dwarf2_parse_context_s
181 const dwarf2_section_t* sections;
184 struct module* module;
185 const struct elf_thunk_area*thunks;
186 struct sparse_array abbrev_table;
187 struct sparse_array debug_info_table;
188 unsigned long load_offset;
189 unsigned long ref_offset;
190 unsigned char word_size;
191 struct symt* symt_cache[sc_num]; /* void, int1, int2, int4 */
192 } dwarf2_parse_context_t;
194 /* stored in the dbghelp's module internal structure for later reuse */
195 struct dwarf2_module_info_s
197 dwarf2_section_t debug_loc;
200 #define loc_dwarf2_location_list (loc_user + 0)
201 #define loc_dwarf2_block (loc_user + 1)
203 /* forward declarations */
204 static struct symt* dwarf2_parse_enumeration_type(dwarf2_parse_context_t* ctx, dwarf2_debug_info_t* entry);
206 static unsigned char dwarf2_get_byte(const unsigned char* ptr)
211 static unsigned char dwarf2_parse_byte(dwarf2_traverse_context_t* ctx)
213 unsigned char uvalue = dwarf2_get_byte(ctx->data);
218 static unsigned short dwarf2_get_u2(const unsigned char* ptr)
220 return *(const unsigned short*)ptr;
223 static unsigned short dwarf2_parse_u2(dwarf2_traverse_context_t* ctx)
225 unsigned short uvalue = dwarf2_get_u2(ctx->data);
230 static unsigned long dwarf2_get_u4(const unsigned char* ptr)
232 return *(const unsigned long*)ptr;
235 static unsigned long dwarf2_parse_u4(dwarf2_traverse_context_t* ctx)
237 unsigned long uvalue = dwarf2_get_u4(ctx->data);
242 static unsigned long dwarf2_get_leb128_as_unsigned(const unsigned char* ptr, const unsigned char** end)
244 unsigned long ret = 0;
250 byte = dwarf2_get_byte(ptr++);
251 ret |= (byte & 0x7f) << shift;
253 } while (byte & 0x80);
259 static unsigned long dwarf2_leb128_as_unsigned(dwarf2_traverse_context_t* ctx)
265 ret = dwarf2_get_leb128_as_unsigned(ctx->data, &ctx->data);
270 static long dwarf2_get_leb128_as_signed(const unsigned char* ptr, const unsigned char** end)
275 const unsigned size = sizeof(int) * 8;
279 byte = dwarf2_get_byte(ptr++);
280 ret |= (byte & 0x7f) << shift;
282 } while (byte & 0x80);
285 /* as spec: sign bit of byte is 2nd high order bit (80x40)
286 * -> 0x80 is used as flag.
288 if ((shift < size) && (byte & 0x40))
290 ret |= - (1 << shift);
295 static long dwarf2_leb128_as_signed(dwarf2_traverse_context_t* ctx)
301 ret = dwarf2_get_leb128_as_signed(ctx->data, &ctx->data);
305 static unsigned dwarf2_leb128_length(const dwarf2_traverse_context_t* ctx)
308 for (ret = 0; ctx->data[ret] & 0x80; ret++);
312 static unsigned long dwarf2_get_addr(const unsigned char* ptr, unsigned word_size)
319 ret = dwarf2_get_u4(ptr);
322 FIXME("Unsupported Word Size %u\n", word_size);
328 static unsigned long dwarf2_parse_addr(dwarf2_traverse_context_t* ctx)
330 unsigned long ret = dwarf2_get_addr(ctx->data, ctx->word_size);
331 ctx->data += ctx->word_size;
335 static const char* dwarf2_debug_traverse_ctx(const dwarf2_traverse_context_t* ctx)
337 return wine_dbg_sprintf("ctx(%p)", ctx->data);
340 static const char* dwarf2_debug_ctx(const dwarf2_parse_context_t* ctx)
342 return wine_dbg_sprintf("ctx(%p,%s)",
343 ctx, debugstr_w(ctx->module->module.ModuleName));
346 static const char* dwarf2_debug_di(const dwarf2_debug_info_t* di)
348 return wine_dbg_sprintf("debug_info(abbrev:%p,symt:%p)",
349 di->abbrev, di->symt);
352 static dwarf2_abbrev_entry_t*
353 dwarf2_abbrev_table_find_entry(const struct sparse_array* abbrev_table,
354 unsigned long entry_code)
356 assert( NULL != abbrev_table );
357 return sparse_array_find(abbrev_table, entry_code);
360 static void dwarf2_parse_abbrev_set(dwarf2_traverse_context_t* abbrev_ctx,
361 struct sparse_array* abbrev_table,
364 unsigned long entry_code;
365 dwarf2_abbrev_entry_t* abbrev_entry;
366 dwarf2_abbrev_entry_attr_t* new = NULL;
367 dwarf2_abbrev_entry_attr_t* last = NULL;
368 unsigned long attribute;
371 assert( NULL != abbrev_ctx );
373 TRACE("%s, end at %p\n",
374 dwarf2_debug_traverse_ctx(abbrev_ctx), abbrev_ctx->end_data);
376 sparse_array_init(abbrev_table, sizeof(dwarf2_abbrev_entry_t), 32);
377 while (abbrev_ctx->data < abbrev_ctx->end_data)
379 TRACE("now at %s\n", dwarf2_debug_traverse_ctx(abbrev_ctx));
380 entry_code = dwarf2_leb128_as_unsigned(abbrev_ctx);
381 TRACE("found entry_code %lu\n", entry_code);
384 TRACE("NULL entry code at %s\n", dwarf2_debug_traverse_ctx(abbrev_ctx));
387 abbrev_entry = sparse_array_add(abbrev_table, entry_code, pool);
388 assert( NULL != abbrev_entry );
390 abbrev_entry->entry_code = entry_code;
391 abbrev_entry->tag = dwarf2_leb128_as_unsigned(abbrev_ctx);
392 abbrev_entry->have_child = dwarf2_parse_byte(abbrev_ctx);
393 abbrev_entry->attrs = NULL;
394 abbrev_entry->num_attr = 0;
396 TRACE("table:(%p,#%u) entry_code(%lu) tag(0x%lx) have_child(%u) -> %p\n",
397 abbrev_table, sparse_array_length(abbrev_table),
398 entry_code, abbrev_entry->tag, abbrev_entry->have_child, abbrev_entry);
403 attribute = dwarf2_leb128_as_unsigned(abbrev_ctx);
404 form = dwarf2_leb128_as_unsigned(abbrev_ctx);
405 if (!attribute) break;
407 new = pool_alloc(pool, sizeof(dwarf2_abbrev_entry_attr_t));
410 new->attribute = attribute;
413 if (abbrev_entry->attrs) last->next = new;
414 else abbrev_entry->attrs = new;
416 abbrev_entry->num_attr++;
419 TRACE("found %u entries\n", sparse_array_length(abbrev_table));
422 static void dwarf2_swallow_attribute(dwarf2_traverse_context_t* ctx,
423 const dwarf2_abbrev_entry_attr_t* abbrev_attr)
427 TRACE("(attr:0x%lx,form:0x%lx)\n", abbrev_attr->attribute, abbrev_attr->form);
429 switch (abbrev_attr->form)
431 case DW_FORM_ref_addr:
432 case DW_FORM_addr: step = ctx->word_size; break;
435 case DW_FORM_ref1: step = 1; break;
437 case DW_FORM_ref2: step = 2; break;
440 case DW_FORM_strp: step = 4; break;
442 case DW_FORM_ref8: step = 8; break;
444 case DW_FORM_ref_udata:
445 case DW_FORM_udata: step = dwarf2_leb128_length(ctx); break;
446 case DW_FORM_string: step = strlen((const char*)ctx->data) + 1; break;
447 case DW_FORM_block: step = dwarf2_leb128_as_unsigned(ctx); break;
448 case DW_FORM_block1: step = dwarf2_parse_byte(ctx); break;
449 case DW_FORM_block2: step = dwarf2_parse_u2(ctx); break;
450 case DW_FORM_block4: step = dwarf2_parse_u4(ctx); break;
452 FIXME("Unhandled attribute form %lx\n", abbrev_attr->form);
458 static void dwarf2_fill_attr(const dwarf2_parse_context_t* ctx,
459 const dwarf2_abbrev_entry_attr_t* abbrev_attr,
460 const unsigned char* data,
461 struct attribute* attr)
463 attr->form = abbrev_attr->form;
466 case DW_FORM_ref_addr:
468 attr->u.uvalue = dwarf2_get_addr(data, ctx->word_size);
469 TRACE("addr<0x%lx>\n", attr->u.uvalue);
473 attr->u.uvalue = dwarf2_get_byte(data);
474 TRACE("flag<0x%lx>\n", attr->u.uvalue);
478 attr->u.uvalue = dwarf2_get_byte(data);
479 TRACE("data1<%lu>\n", attr->u.uvalue);
483 attr->u.uvalue = dwarf2_get_u2(data);
484 TRACE("data2<%lu>\n", attr->u.uvalue);
488 attr->u.uvalue = dwarf2_get_u4(data);
489 TRACE("data4<%lu>\n", attr->u.uvalue);
493 FIXME("Unhandled 64bits support\n");
497 attr->u.uvalue = ctx->ref_offset + dwarf2_get_byte(data);
498 TRACE("ref1<0x%lx>\n", attr->u.uvalue);
502 attr->u.uvalue = ctx->ref_offset + dwarf2_get_u2(data);
503 TRACE("ref2<0x%lx>\n", attr->u.uvalue);
507 attr->u.uvalue = ctx->ref_offset + dwarf2_get_u4(data);
508 TRACE("ref4<0x%lx>\n", attr->u.uvalue);
512 FIXME("Unhandled 64 bit support\n");
516 attr->u.svalue = dwarf2_get_leb128_as_signed(data, NULL);
519 case DW_FORM_ref_udata:
520 attr->u.uvalue = dwarf2_get_leb128_as_unsigned(data, NULL);
524 attr->u.uvalue = dwarf2_get_leb128_as_unsigned(data, NULL);
528 attr->u.string = (const char *)data;
529 TRACE("string<%s>\n", attr->u.string);
534 unsigned long offset = dwarf2_get_u4(data);
535 attr->u.string = (const char*)ctx->sections[section_string].address + offset;
537 TRACE("strp<%s>\n", attr->u.string);
541 attr->u.block.size = dwarf2_get_leb128_as_unsigned(data, &attr->u.block.ptr);
545 attr->u.block.size = dwarf2_get_byte(data);
546 attr->u.block.ptr = data + 1;
550 attr->u.block.size = dwarf2_get_u2(data);
551 attr->u.block.ptr = data + 2;
555 attr->u.block.size = dwarf2_get_u4(data);
556 attr->u.block.ptr = data + 4;
560 FIXME("Unhandled attribute form %lx\n", abbrev_attr->form);
565 static BOOL dwarf2_find_attribute(const dwarf2_parse_context_t* ctx,
566 const dwarf2_debug_info_t* di,
567 unsigned at, struct attribute* attr)
570 dwarf2_abbrev_entry_attr_t* abbrev_attr;
571 dwarf2_abbrev_entry_attr_t* abstract_abbrev_attr;
575 abstract_abbrev_attr = NULL;
576 for (i = 0, abbrev_attr = di->abbrev->attrs; abbrev_attr; i++, abbrev_attr = abbrev_attr->next)
578 if (abbrev_attr->attribute == at)
580 dwarf2_fill_attr(ctx, abbrev_attr, di->data[i], attr);
583 if (abbrev_attr->attribute == DW_AT_abstract_origin &&
586 abstract_abbrev_attr = abbrev_attr;
590 /* do we have an abstract origin debug entry to look into ? */
591 if (!abstract_abbrev_attr) break;
592 dwarf2_fill_attr(ctx, abstract_abbrev_attr, di->data[ai], attr);
593 if (!(di = sparse_array_find(&ctx->debug_info_table, attr->u.uvalue)))
594 FIXME("Should have found the debug info entry\n");
599 static void dwarf2_load_one_entry(dwarf2_parse_context_t*, dwarf2_debug_info_t*,
600 struct symt_compiland*);
602 #define Wine_DW_no_register 0x7FFFFFFF
604 static unsigned dwarf2_map_register(int regno)
610 case Wine_DW_no_register: FIXME("What the heck map reg 0x%x\n",regno); reg = 0; break;
611 case 0: reg = CV_REG_EAX; break;
612 case 1: reg = CV_REG_ECX; break;
613 case 2: reg = CV_REG_EDX; break;
614 case 3: reg = CV_REG_EBX; break;
615 case 4: reg = CV_REG_ESP; break;
616 case 5: reg = CV_REG_EBP; break;
617 case 6: reg = CV_REG_ESI; break;
618 case 7: reg = CV_REG_EDI; break;
619 case 8: reg = CV_REG_EIP; break;
620 case 9: reg = CV_REG_EFLAGS; break;
621 case 10: reg = CV_REG_CS; break;
622 case 11: reg = CV_REG_SS; break;
623 case 12: reg = CV_REG_DS; break;
624 case 13: reg = CV_REG_ES; break;
625 case 14: reg = CV_REG_FS; break;
626 case 15: reg = CV_REG_GS; break;
627 case 16: case 17: case 18: case 19:
628 case 20: case 21: case 22: case 23:
629 reg = CV_REG_ST0 + regno - 16; break;
630 case 24: reg = CV_REG_CTRL; break;
631 case 25: reg = CV_REG_STAT; break;
632 case 26: reg = CV_REG_TAG; break;
640 case 32: case 33: case 34: case 35:
641 case 36: case 37: case 38: case 39:
642 reg = CV_REG_XMM0 + regno - 32; break;
643 case 40: reg = CV_REG_MXCSR; break;
645 FIXME("Don't know how to map register %d\n", regno);
651 static enum location_error
652 compute_location(dwarf2_traverse_context_t* ctx, struct location* loc,
653 HANDLE hproc, const struct location* frame)
655 unsigned long stack[64];
658 BOOL piece_found = FALSE;
662 loc->kind = loc_absolute;
663 loc->reg = Wine_DW_no_register;
665 while (ctx->data < ctx->end_data)
667 op = dwarf2_parse_byte(ctx);
670 case DW_OP_addr: stack[++stk] = dwarf2_parse_addr(ctx); break;
671 case DW_OP_const1u: stack[++stk] = dwarf2_parse_byte(ctx); break;
672 case DW_OP_const1s: stack[++stk] = (long)(signed char)dwarf2_parse_byte(ctx); break;
673 case DW_OP_const2u: stack[++stk] = dwarf2_parse_u2(ctx); break;
674 case DW_OP_const2s: stack[++stk] = (long)(short)dwarf2_parse_u2(ctx); break;
675 case DW_OP_const4u: stack[++stk] = dwarf2_parse_u4(ctx); break;
676 case DW_OP_const4s: stack[++stk] = dwarf2_parse_u4(ctx); break;
677 case DW_OP_constu: stack[++stk] = dwarf2_leb128_as_unsigned(ctx); break;
678 case DW_OP_consts: stack[++stk] = dwarf2_leb128_as_signed(ctx); break;
679 case DW_OP_plus_uconst:
680 stack[stk] += dwarf2_leb128_as_unsigned(ctx); break;
681 case DW_OP_reg0: case DW_OP_reg1: case DW_OP_reg2: case DW_OP_reg3:
682 case DW_OP_reg4: case DW_OP_reg5: case DW_OP_reg6: case DW_OP_reg7:
683 case DW_OP_reg8: case DW_OP_reg9: case DW_OP_reg10: case DW_OP_reg11:
684 case DW_OP_reg12: case DW_OP_reg13: case DW_OP_reg14: case DW_OP_reg15:
685 case DW_OP_reg16: case DW_OP_reg17: case DW_OP_reg18: case DW_OP_reg19:
686 case DW_OP_reg20: case DW_OP_reg21: case DW_OP_reg22: case DW_OP_reg23:
687 case DW_OP_reg24: case DW_OP_reg25: case DW_OP_reg26: case DW_OP_reg27:
688 case DW_OP_reg28: case DW_OP_reg29: case DW_OP_reg30: case DW_OP_reg31:
689 /* dbghelp APIs don't know how to cope with this anyway
690 * (for example 'long long' stored in two registers)
691 * FIXME: We should tell winedbg how to deal with it (sigh)
695 if (loc->reg != Wine_DW_no_register)
696 FIXME("Only supporting one reg (%d -> %d)\n",
697 loc->reg, dwarf2_map_register(op - DW_OP_reg0));
698 loc->reg = dwarf2_map_register(op - DW_OP_reg0);
700 loc->kind = loc_register;
702 case DW_OP_breg0: case DW_OP_breg1: case DW_OP_breg2: case DW_OP_breg3:
703 case DW_OP_breg4: case DW_OP_breg5: case DW_OP_breg6: case DW_OP_breg7:
704 case DW_OP_breg8: case DW_OP_breg9: case DW_OP_breg10: case DW_OP_breg11:
705 case DW_OP_breg12: case DW_OP_breg13: case DW_OP_breg14: case DW_OP_breg15:
706 case DW_OP_breg16: case DW_OP_breg17: case DW_OP_breg18: case DW_OP_breg19:
707 case DW_OP_breg20: case DW_OP_breg21: case DW_OP_breg22: case DW_OP_breg23:
708 case DW_OP_breg24: case DW_OP_breg25: case DW_OP_breg26: case DW_OP_breg27:
709 case DW_OP_breg28: case DW_OP_breg29: case DW_OP_breg30: case DW_OP_breg31:
710 /* dbghelp APIs don't know how to cope with this anyway
711 * (for example 'long long' stored in two registers)
712 * FIXME: We should tell winedbg how to deal with it (sigh)
716 if (loc->reg != Wine_DW_no_register)
717 FIXME("Only supporting one reg (%d -> %d)\n",
718 loc->reg, dwarf2_map_register(op - DW_OP_breg0));
719 loc->reg = dwarf2_map_register(op - DW_OP_breg0);
721 stack[++stk] = dwarf2_leb128_as_signed(ctx);
722 loc->kind = loc_regrel;
725 if (loc->reg != Wine_DW_no_register)
726 FIXME("Only supporting one reg (%d -> -2)\n", loc->reg);
727 if (frame && frame->kind == loc_register)
729 loc->kind = loc_regrel;
730 loc->reg = frame->reg;
731 stack[++stk] = dwarf2_leb128_as_signed(ctx);
733 else if (frame && frame->kind == loc_regrel)
735 loc->kind = loc_regrel;
736 loc->reg = frame->reg;
737 stack[++stk] = dwarf2_leb128_as_signed(ctx) + frame->offset;
741 /* FIXME: this could be later optimized by not recomputing
742 * this very location expression
744 loc->kind = loc_dwarf2_block;
745 stack[++stk] = dwarf2_leb128_as_signed(ctx);
750 unsigned sz = dwarf2_leb128_as_unsigned(ctx);
751 WARN("Not handling OP_piece (size=%d)\n", sz);
758 FIXME("Unexpected empty stack\n");
759 return loc_err_internal;
761 if (loc->reg != Wine_DW_no_register)
763 WARN("Too complex expression for deref\n");
764 return loc_err_too_complex;
768 DWORD addr = stack[stk--];
771 if (!ReadProcessMemory(hproc, (void*)addr, &deref, sizeof(deref), NULL))
773 WARN("Couldn't read memory at %x\n", addr);
774 return loc_err_cant_read;
776 stack[++stk] = deref;
780 loc->kind = loc_dwarf2_block;
784 if (op < DW_OP_lo_user) /* as DW_OP_hi_user is 0xFF, we don't need to test against it */
785 FIXME("Unhandled attr op: %x\n", op);
786 /* FIXME else unhandled extension */
787 return loc_err_internal;
790 loc->offset = stack[stk];
794 static BOOL dwarf2_compute_location_attr(dwarf2_parse_context_t* ctx,
795 const dwarf2_debug_info_t* di,
797 struct location* loc,
798 const struct location* frame)
800 struct attribute xloc;
802 if (!dwarf2_find_attribute(ctx, di, dw, &xloc)) return FALSE;
806 case DW_FORM_data1: case DW_FORM_data2:
807 case DW_FORM_udata: case DW_FORM_sdata:
808 loc->kind = loc_absolute;
810 loc->offset = xloc.u.uvalue;
812 case DW_FORM_data4: case DW_FORM_data8:
813 loc->kind = loc_dwarf2_location_list;
814 loc->reg = Wine_DW_no_register;
815 loc->offset = xloc.u.uvalue;
819 /* assume we have a block form */
821 if (xloc.u.block.size)
823 dwarf2_traverse_context_t lctx;
824 enum location_error err;
826 lctx.data = xloc.u.block.ptr;
827 lctx.end_data = xloc.u.block.ptr + xloc.u.block.size;
828 lctx.word_size = ctx->word_size;
830 err = compute_location(&lctx, loc, NULL, frame);
833 loc->kind = loc_error;
836 else if (loc->kind == loc_dwarf2_block)
838 unsigned* ptr = pool_alloc(&ctx->module->pool,
839 sizeof(unsigned) + xloc.u.block.size);
840 *ptr = xloc.u.block.size;
841 memcpy(ptr + 1, xloc.u.block.ptr, xloc.u.block.size);
842 loc->offset = (unsigned long)ptr;
848 static struct symt* dwarf2_lookup_type(dwarf2_parse_context_t* ctx,
849 const dwarf2_debug_info_t* di)
851 struct attribute attr;
853 if (dwarf2_find_attribute(ctx, di, DW_AT_type, &attr))
855 dwarf2_debug_info_t* type;
857 type = sparse_array_find(&ctx->debug_info_table, attr.u.uvalue);
858 if (!type) FIXME("Unable to find back reference to type %lx\n", attr.u.uvalue);
861 /* load the debug info entity */
862 dwarf2_load_one_entry(ctx, type, NULL);
869 /******************************************************************
870 * dwarf2_read_one_debug_info
872 * Loads into memory one debug info entry, and recursively its children (if any)
874 static BOOL dwarf2_read_one_debug_info(dwarf2_parse_context_t* ctx,
875 dwarf2_traverse_context_t* traverse,
876 dwarf2_debug_info_t** pdi)
878 const dwarf2_abbrev_entry_t*abbrev;
879 unsigned long entry_code;
880 unsigned long offset;
881 dwarf2_debug_info_t* di;
882 dwarf2_debug_info_t* child;
883 dwarf2_debug_info_t** where;
884 dwarf2_abbrev_entry_attr_t* attr;
886 struct attribute sibling;
888 offset = traverse->data - ctx->sections[ctx->section].address;
889 entry_code = dwarf2_leb128_as_unsigned(traverse);
890 TRACE("found entry_code %lu at 0x%lx\n", entry_code, offset);
896 abbrev = dwarf2_abbrev_table_find_entry(&ctx->abbrev_table, entry_code);
899 WARN("Cannot find abbrev entry for %lu at 0x%lx\n", entry_code, offset);
902 di = sparse_array_add(&ctx->debug_info_table, offset, &ctx->pool);
903 if (!di) return FALSE;
907 if (abbrev->num_attr)
909 di->data = pool_alloc(&ctx->pool, abbrev->num_attr * sizeof(const char*));
910 for (i = 0, attr = abbrev->attrs; attr; i++, attr = attr->next)
912 di->data[i] = traverse->data;
913 dwarf2_swallow_attribute(traverse, attr);
916 else di->data = NULL;
917 if (abbrev->have_child)
919 vector_init(&di->children, sizeof(dwarf2_debug_info_t*), 16);
920 while (traverse->data < traverse->end_data)
922 if (!dwarf2_read_one_debug_info(ctx, traverse, &child)) return FALSE;
924 where = vector_add(&di->children, &ctx->pool);
925 if (!where) return FALSE;
929 if (dwarf2_find_attribute(ctx, di, DW_AT_sibling, &sibling) &&
930 traverse->data != ctx->sections[ctx->section].address + sibling.u.uvalue)
932 WARN("setting cursor for %s to next sibling <0x%lx>\n",
933 dwarf2_debug_traverse_ctx(traverse), sibling.u.uvalue);
934 traverse->data = ctx->sections[ctx->section].address + sibling.u.uvalue;
940 static struct symt* dwarf2_parse_base_type(dwarf2_parse_context_t* ctx,
941 dwarf2_debug_info_t* di)
943 struct attribute name;
944 struct attribute size;
945 struct attribute encoding;
948 if (di->symt) return di->symt;
950 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
952 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name))
953 name.u.string = NULL;
954 if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &size)) size.u.uvalue = 0;
955 if (!dwarf2_find_attribute(ctx, di, DW_AT_encoding, &encoding)) encoding.u.uvalue = DW_ATE_void;
957 switch (encoding.u.uvalue)
959 case DW_ATE_void: bt = btVoid; break;
960 case DW_ATE_address: bt = btULong; break;
961 case DW_ATE_boolean: bt = btBool; break;
962 case DW_ATE_complex_float: bt = btComplex; break;
963 case DW_ATE_float: bt = btFloat; break;
964 case DW_ATE_signed: bt = btInt; break;
965 case DW_ATE_unsigned: bt = btUInt; break;
966 case DW_ATE_signed_char: bt = btChar; break;
967 case DW_ATE_unsigned_char: bt = btChar; break;
968 default: bt = btNoType; break;
970 di->symt = &symt_new_basic(ctx->module, bt, name.u.string, size.u.uvalue)->symt;
974 assert(size.u.uvalue == 0);
978 switch (size.u.uvalue)
980 case 1: cache_idx = sc_int1; break;
981 case 2: cache_idx = sc_int2; break;
982 case 4: cache_idx = sc_int4; break;
987 if (cache_idx != -1 && !ctx->symt_cache[cache_idx])
988 ctx->symt_cache[cache_idx] = di->symt;
990 if (di->abbrev->have_child) FIXME("Unsupported children\n");
994 static struct symt* dwarf2_parse_typedef(dwarf2_parse_context_t* ctx,
995 dwarf2_debug_info_t* di)
997 struct symt* ref_type;
998 struct attribute name;
1000 if (di->symt) return di->symt;
1002 TRACE("%s, for %lu\n", dwarf2_debug_ctx(ctx), di->abbrev->entry_code);
1004 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) name.u.string = NULL;
1005 ref_type = dwarf2_lookup_type(ctx, di);
1008 di->symt = &symt_new_typedef(ctx->module, ref_type, name.u.string)->symt;
1009 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1013 static struct symt* dwarf2_parse_pointer_type(dwarf2_parse_context_t* ctx,
1014 dwarf2_debug_info_t* di)
1016 struct symt* ref_type;
1017 struct attribute size;
1019 if (di->symt) return di->symt;
1021 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1023 if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &size)) size.u.uvalue = 0;
1024 if (!(ref_type = dwarf2_lookup_type(ctx, di)))
1026 ref_type = ctx->symt_cache[sc_void];
1029 di->symt = &symt_new_pointer(ctx->module, ref_type)->symt;
1030 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1034 static struct symt* dwarf2_parse_array_type(dwarf2_parse_context_t* ctx,
1035 dwarf2_debug_info_t* di)
1037 struct symt* ref_type;
1038 struct symt* idx_type = NULL;
1039 struct attribute min, max, cnt;
1040 dwarf2_debug_info_t* child;
1043 if (di->symt) return di->symt;
1045 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1047 if (!di->abbrev->have_child)
1049 FIXME("array without range information\n");
1052 ref_type = dwarf2_lookup_type(ctx, di);
1054 for (i=0; i<vector_length(&di->children); i++)
1056 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1057 switch (child->abbrev->tag)
1059 case DW_TAG_subrange_type:
1060 idx_type = dwarf2_lookup_type(ctx, child);
1061 if (!dwarf2_find_attribute(ctx, child, DW_AT_lower_bound, &min))
1063 if (!dwarf2_find_attribute(ctx, child, DW_AT_upper_bound, &max))
1065 if (dwarf2_find_attribute(ctx, child, DW_AT_count, &cnt))
1066 max.u.uvalue = min.u.uvalue + cnt.u.uvalue;
1069 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1070 child->abbrev->tag, dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1074 di->symt = &symt_new_array(ctx->module, min.u.uvalue, max.u.uvalue, ref_type, idx_type)->symt;
1078 static struct symt* dwarf2_parse_const_type(dwarf2_parse_context_t* ctx,
1079 dwarf2_debug_info_t* di)
1081 struct symt* ref_type;
1083 if (di->symt) return di->symt;
1085 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1087 ref_type = dwarf2_lookup_type(ctx, di);
1088 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1089 di->symt = ref_type;
1094 static struct symt* dwarf2_parse_volatile_type(dwarf2_parse_context_t* ctx,
1095 dwarf2_debug_info_t* di)
1097 struct symt* ref_type;
1099 if (di->symt) return di->symt;
1101 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1103 ref_type = dwarf2_lookup_type(ctx, di);
1104 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1105 di->symt = ref_type;
1110 static struct symt* dwarf2_parse_reference_type(dwarf2_parse_context_t* ctx,
1111 dwarf2_debug_info_t* di)
1113 struct symt* ref_type = NULL;
1115 if (di->symt) return di->symt;
1117 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1119 ref_type = dwarf2_lookup_type(ctx, di);
1120 /* FIXME: for now, we hard-wire C++ references to pointers */
1121 di->symt = &symt_new_pointer(ctx->module, ref_type)->symt;
1123 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1128 static void dwarf2_parse_udt_member(dwarf2_parse_context_t* ctx,
1129 const dwarf2_debug_info_t* di,
1130 struct symt_udt* parent)
1132 struct symt* elt_type;
1133 struct attribute name;
1134 struct attribute bit_size;
1135 struct attribute bit_offset;
1136 struct location loc;
1140 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1142 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) name.u.string = NULL;
1143 elt_type = dwarf2_lookup_type(ctx, di);
1144 if (dwarf2_compute_location_attr(ctx, di, DW_AT_data_member_location, &loc, NULL))
1146 if (loc.kind != loc_absolute)
1148 FIXME("Found register, while not expecting it\n");
1152 TRACE("found member_location at %s -> %lu\n",
1153 dwarf2_debug_ctx(ctx), loc.offset);
1157 if (!dwarf2_find_attribute(ctx, di, DW_AT_bit_size, &bit_size))
1158 bit_size.u.uvalue = 0;
1159 if (dwarf2_find_attribute(ctx, di, DW_AT_bit_offset, &bit_offset))
1161 /* FIXME: we should only do this when implementation is LSB (which is
1162 * the case on i386 processors)
1164 struct attribute nbytes;
1165 if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &nbytes))
1168 nbytes.u.uvalue = symt_get_info(elt_type, TI_GET_LENGTH, &size) ? (unsigned long)size : 0;
1170 bit_offset.u.uvalue = nbytes.u.uvalue * 8 - bit_offset.u.uvalue - bit_size.u.uvalue;
1172 else bit_offset.u.uvalue = 0;
1173 symt_add_udt_element(ctx->module, parent, name.u.string, elt_type,
1174 (loc.offset << 3) + bit_offset.u.uvalue,
1177 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1180 static struct symt* dwarf2_parse_udt_type(dwarf2_parse_context_t* ctx,
1181 dwarf2_debug_info_t* di,
1184 struct attribute name;
1185 struct attribute size;
1187 if (di->symt) return di->symt;
1189 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1191 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) name.u.string = NULL;
1192 if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &size)) size.u.uvalue = 0;
1194 di->symt = &symt_new_udt(ctx->module, name.u.string, size.u.uvalue, udt)->symt;
1196 if (di->abbrev->have_child) /** any interest to not have child ? */
1198 dwarf2_debug_info_t* child;
1201 for (i=0; i<vector_length(&di->children); i++)
1203 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1205 switch (child->abbrev->tag)
1208 /* FIXME: should I follow the sibling stuff ?? */
1209 dwarf2_parse_udt_member(ctx, child, (struct symt_udt*)di->symt);
1211 case DW_TAG_enumeration_type:
1212 dwarf2_parse_enumeration_type(ctx, child);
1214 case DW_TAG_structure_type:
1215 case DW_TAG_class_type:
1216 case DW_TAG_union_type:
1217 case DW_TAG_typedef:
1218 /* FIXME: we need to handle nested udt definitions */
1221 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1222 child->abbrev->tag, dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1231 static void dwarf2_parse_enumerator(dwarf2_parse_context_t* ctx,
1232 const dwarf2_debug_info_t* di,
1233 struct symt_enum* parent)
1235 struct attribute name;
1236 struct attribute value;
1238 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1240 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) return;
1241 if (!dwarf2_find_attribute(ctx, di, DW_AT_const_value, &value)) value.u.svalue = 0;
1242 symt_add_enum_element(ctx->module, parent, name.u.string, value.u.svalue);
1244 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1247 static struct symt* dwarf2_parse_enumeration_type(dwarf2_parse_context_t* ctx,
1248 dwarf2_debug_info_t* di)
1250 struct attribute name;
1251 struct attribute size;
1252 struct symt_basic* basetype;
1254 if (di->symt) return di->symt;
1256 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1258 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name)) name.u.string = NULL;
1259 if (!dwarf2_find_attribute(ctx, di, DW_AT_byte_size, &size)) size.u.uvalue = 4;
1261 switch (size.u.uvalue) /* FIXME: that's wrong */
1263 case 1: basetype = symt_new_basic(ctx->module, btInt, "char", 1); break;
1264 case 2: basetype = symt_new_basic(ctx->module, btInt, "short", 2); break;
1266 case 4: basetype = symt_new_basic(ctx->module, btInt, "int", 4); break;
1269 di->symt = &symt_new_enum(ctx->module, name.u.string, &basetype->symt)->symt;
1271 if (di->abbrev->have_child) /* any interest to not have child ? */
1273 dwarf2_debug_info_t* child;
1276 /* FIXME: should we use the sibling stuff ?? */
1277 for (i=0; i<vector_length(&di->children); i++)
1279 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1281 switch (child->abbrev->tag)
1283 case DW_TAG_enumerator:
1284 dwarf2_parse_enumerator(ctx, child, (struct symt_enum*)di->symt);
1287 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1288 di->abbrev->tag, dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1295 /* structure used to pass information around when parsing a subprogram */
1296 typedef struct dwarf2_subprogram_s
1298 dwarf2_parse_context_t* ctx;
1299 struct symt_compiland* compiland;
1300 struct symt_function* func;
1301 BOOL non_computed_variable;
1302 struct location frame;
1303 } dwarf2_subprogram_t;
1305 /******************************************************************
1306 * dwarf2_parse_variable
1308 * Parses any variable (parameter, local/global variable)
1310 static void dwarf2_parse_variable(dwarf2_subprogram_t* subpgm,
1311 struct symt_block* block,
1312 dwarf2_debug_info_t* di)
1314 struct symt* param_type;
1315 struct attribute name, value;
1316 struct location loc;
1319 TRACE("%s, for %s\n", dwarf2_debug_ctx(subpgm->ctx), dwarf2_debug_di(di));
1321 is_pmt = !block && di->abbrev->tag == DW_TAG_formal_parameter;
1322 param_type = dwarf2_lookup_type(subpgm->ctx, di);
1324 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_name, &name)) {
1325 /* cannot do much without the name, the functions below won't like it. */
1328 if (dwarf2_compute_location_attr(subpgm->ctx, di, DW_AT_location,
1329 &loc, &subpgm->frame))
1331 struct attribute ext;
1333 TRACE("found parameter %s (kind=%d, offset=%ld, reg=%d) at %s\n",
1334 name.u.string, loc.kind, loc.offset, loc.reg,
1335 dwarf2_debug_ctx(subpgm->ctx));
1342 /* it's a global variable */
1343 /* FIXME: we don't handle its scope yet */
1344 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_external, &ext))
1346 symt_new_global_variable(subpgm->ctx->module, subpgm->compiland,
1347 name.u.string, !ext.u.uvalue,
1348 subpgm->ctx->load_offset + loc.offset,
1352 subpgm->non_computed_variable = TRUE;
1356 /* either a pmt/variable relative to frame pointer or
1357 * pmt/variable in a register
1359 assert(subpgm->func);
1360 symt_add_func_local(subpgm->ctx->module, subpgm->func,
1361 is_pmt ? DataIsParam : DataIsLocal,
1362 &loc, block, param_type, name.u.string);
1366 else if (dwarf2_find_attribute(subpgm->ctx, di, DW_AT_const_value, &value))
1369 if (subpgm->func) WARN("Unsupported constant %s in function\n", name.u.string);
1370 if (is_pmt) FIXME("Unsupported constant (parameter) %s in function\n", name.u.string);
1378 v.n1.n2.vt = VT_UI4;
1379 v.n1.n2.n3.lVal = value.u.uvalue;
1384 v.n1.n2.n3.lVal = value.u.svalue;
1388 case DW_FORM_string:
1389 /* FIXME: native doesn't report const strings from here !!
1390 * however, the value of the string is in the code somewhere
1392 v.n1.n2.vt = VT_I1 | VT_BYREF;
1393 v.n1.n2.n3.byref = pool_strdup(&subpgm->ctx->module->pool, value.u.string);
1397 case DW_FORM_block1:
1398 case DW_FORM_block2:
1399 case DW_FORM_block4:
1401 switch (value.u.block.size)
1403 case 1: v.n1.n2.n3.lVal = *(BYTE*)value.u.block.ptr; break;
1404 case 2: v.n1.n2.n3.lVal = *(USHORT*)value.u.block.ptr; break;
1405 case 4: v.n1.n2.n3.lVal = *(DWORD*)value.u.block.ptr; break;
1407 v.n1.n2.vt = VT_I1 | VT_BYREF;
1408 v.n1.n2.n3.byref = pool_alloc(&subpgm->ctx->module->pool, value.u.block.size);
1409 memcpy(v.n1.n2.n3.byref, value.u.block.ptr, value.u.block.size);
1415 FIXME("Unsupported form for const value %s (%lx)\n",
1416 name.u.string, value.form);
1417 v.n1.n2.vt = VT_EMPTY;
1419 di->symt = &symt_new_constant(subpgm->ctx->module, subpgm->compiland,
1420 name.u.string, param_type, &v)->symt;
1422 if (is_pmt && subpgm->func && subpgm->func->type)
1423 symt_add_function_signature_parameter(subpgm->ctx->module,
1424 (struct symt_function_signature*)subpgm->func->type,
1427 if (di->abbrev->have_child) FIXME("Unsupported children\n");
1430 static void dwarf2_parse_subprogram_label(dwarf2_subprogram_t* subpgm,
1431 const dwarf2_debug_info_t* di)
1433 struct attribute name;
1434 struct attribute low_pc;
1435 struct location loc;
1437 TRACE("%s, for %s\n", dwarf2_debug_ctx(subpgm->ctx), dwarf2_debug_di(di));
1439 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_low_pc, &low_pc)) low_pc.u.uvalue = 0;
1440 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_name, &name))
1441 name.u.string = NULL;
1443 loc.kind = loc_absolute;
1444 loc.offset = subpgm->ctx->load_offset + low_pc.u.uvalue;
1445 symt_add_function_point(subpgm->ctx->module, subpgm->func, SymTagLabel,
1446 &loc, name.u.string);
1449 static void dwarf2_parse_subprogram_block(dwarf2_subprogram_t* subpgm,
1450 struct symt_block* parent_block,
1451 const dwarf2_debug_info_t* di);
1453 static void dwarf2_parse_inlined_subroutine(dwarf2_subprogram_t* subpgm,
1454 struct symt_block* parent_block,
1455 const dwarf2_debug_info_t* di)
1457 struct symt_block* block;
1458 struct attribute low_pc;
1459 struct attribute high_pc;
1461 TRACE("%s, for %s\n", dwarf2_debug_ctx(subpgm->ctx), dwarf2_debug_di(di));
1463 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_low_pc, &low_pc)) low_pc.u.uvalue = 0;
1464 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_high_pc, &high_pc)) high_pc.u.uvalue = 0;
1466 block = symt_open_func_block(subpgm->ctx->module, subpgm->func, parent_block,
1467 subpgm->ctx->load_offset + low_pc.u.uvalue - subpgm->func->address,
1468 high_pc.u.uvalue - low_pc.u.uvalue);
1470 if (di->abbrev->have_child) /** any interest to not have child ? */
1472 dwarf2_debug_info_t* child;
1475 for (i=0; i<vector_length(&di->children); i++)
1477 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1479 switch (child->abbrev->tag)
1481 case DW_TAG_formal_parameter:
1482 case DW_TAG_variable:
1483 dwarf2_parse_variable(subpgm, block, child);
1485 case DW_TAG_lexical_block:
1486 dwarf2_parse_subprogram_block(subpgm, block, child);
1488 case DW_TAG_inlined_subroutine:
1489 dwarf2_parse_inlined_subroutine(subpgm, block, child);
1492 dwarf2_parse_subprogram_label(subpgm, child);
1495 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1496 child->abbrev->tag, dwarf2_debug_ctx(subpgm->ctx),
1497 dwarf2_debug_di(di));
1501 symt_close_func_block(subpgm->ctx->module, subpgm->func, block, 0);
1504 static void dwarf2_parse_subprogram_block(dwarf2_subprogram_t* subpgm,
1505 struct symt_block* parent_block,
1506 const dwarf2_debug_info_t* di)
1508 struct symt_block* block;
1509 struct attribute low_pc;
1510 struct attribute high_pc;
1512 TRACE("%s, for %s\n", dwarf2_debug_ctx(subpgm->ctx), dwarf2_debug_di(di));
1514 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_low_pc, &low_pc))
1515 low_pc.u.uvalue = 0;
1516 if (!dwarf2_find_attribute(subpgm->ctx, di, DW_AT_high_pc, &high_pc))
1517 high_pc.u.uvalue = 0;
1519 block = symt_open_func_block(subpgm->ctx->module, subpgm->func, parent_block,
1520 subpgm->ctx->load_offset + low_pc.u.uvalue - subpgm->func->address,
1521 high_pc.u.uvalue - low_pc.u.uvalue);
1523 if (di->abbrev->have_child) /** any interest to not have child ? */
1525 dwarf2_debug_info_t* child;
1528 for (i=0; i<vector_length(&di->children); i++)
1530 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1532 switch (child->abbrev->tag)
1534 case DW_TAG_inlined_subroutine:
1535 dwarf2_parse_inlined_subroutine(subpgm, block, child);
1537 case DW_TAG_variable:
1538 dwarf2_parse_variable(subpgm, block, child);
1540 case DW_TAG_lexical_block:
1541 dwarf2_parse_subprogram_block(subpgm, block, child);
1543 case DW_TAG_subprogram:
1544 /* FIXME: likely a declaration (to be checked)
1548 case DW_TAG_formal_parameter:
1549 /* FIXME: likely elements for exception handling (GCC flavor)
1554 dwarf2_parse_subprogram_label(subpgm, child);
1556 case DW_TAG_class_type:
1557 case DW_TAG_structure_type:
1558 case DW_TAG_union_type:
1559 case DW_TAG_enumeration_type:
1560 case DW_TAG_typedef:
1561 /* the type referred to will be loaded when we need it, so skip it */
1564 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1565 child->abbrev->tag, dwarf2_debug_ctx(subpgm->ctx), dwarf2_debug_di(di));
1570 symt_close_func_block(subpgm->ctx->module, subpgm->func, block, 0);
1573 static struct symt* dwarf2_parse_subprogram(dwarf2_parse_context_t* ctx,
1574 dwarf2_debug_info_t* di,
1575 struct symt_compiland* compiland)
1577 struct attribute name;
1578 struct attribute low_pc;
1579 struct attribute high_pc;
1580 struct attribute is_decl;
1581 struct attribute inline_flags;
1582 struct symt* ret_type;
1583 struct symt_function_signature* sig_type;
1584 dwarf2_subprogram_t subpgm;
1586 if (di->symt) return di->symt;
1588 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1590 if (!dwarf2_find_attribute(ctx, di, DW_AT_name, &name))
1592 WARN("No name for function... dropping function\n");
1595 /* if it's an abstract representation of an inline function, there should be
1596 * a concrete object that we'll handle
1598 if (dwarf2_find_attribute(ctx, di, DW_AT_inline, &inline_flags))
1600 TRACE("Function %s declared as inlined (%ld)... skipping\n",
1601 name.u.string ? name.u.string : "(null)", inline_flags.u.uvalue);
1605 if (!dwarf2_find_attribute(ctx, di, DW_AT_low_pc, &low_pc)) low_pc.u.uvalue = 0;
1606 if (!dwarf2_find_attribute(ctx, di, DW_AT_high_pc, &high_pc)) high_pc.u.uvalue = 0;
1607 /* As functions (defined as inline assembly) get debug info with dwarf
1608 * (not the case for stabs), we just drop Wine's thunks here...
1609 * Actual thunks will be created in elf_module from the symbol table
1611 if (elf_is_in_thunk_area(ctx->load_offset + low_pc.u.uvalue,
1614 if (!dwarf2_find_attribute(ctx, di, DW_AT_declaration, &is_decl))
1615 is_decl.u.uvalue = 0;
1617 if (!(ret_type = dwarf2_lookup_type(ctx, di)))
1619 ret_type = ctx->symt_cache[sc_void];
1623 /* FIXME: assuming C source code */
1624 sig_type = symt_new_function_signature(ctx->module, ret_type, CV_CALL_FAR_C);
1625 if (!is_decl.u.uvalue)
1627 subpgm.func = symt_new_function(ctx->module, compiland, name.u.string,
1628 ctx->load_offset + low_pc.u.uvalue,
1629 high_pc.u.uvalue - low_pc.u.uvalue,
1631 di->symt = &subpgm.func->symt;
1633 else subpgm.func = NULL;
1636 subpgm.compiland = compiland;
1637 if (!dwarf2_compute_location_attr(ctx, di, DW_AT_frame_base,
1638 &subpgm.frame, NULL))
1641 subpgm.frame.kind = loc_regrel;
1642 subpgm.frame.reg = 0;
1643 subpgm.frame.offset = 0;
1645 subpgm.non_computed_variable = FALSE;
1647 if (di->abbrev->have_child) /** any interest to not have child ? */
1649 dwarf2_debug_info_t* child;
1652 for (i=0; i<vector_length(&di->children); i++)
1654 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1656 switch (child->abbrev->tag)
1658 case DW_TAG_variable:
1659 case DW_TAG_formal_parameter:
1660 dwarf2_parse_variable(&subpgm, NULL, child);
1662 case DW_TAG_lexical_block:
1663 dwarf2_parse_subprogram_block(&subpgm, NULL, child);
1665 case DW_TAG_inlined_subroutine:
1666 dwarf2_parse_inlined_subroutine(&subpgm, NULL, child);
1668 case DW_TAG_subprogram:
1669 /* FIXME: likely a declaration (to be checked)
1674 dwarf2_parse_subprogram_label(&subpgm, child);
1676 case DW_TAG_class_type:
1677 case DW_TAG_structure_type:
1678 case DW_TAG_union_type:
1679 case DW_TAG_enumeration_type:
1680 case DW_TAG_typedef:
1681 /* the type referred to will be loaded when we need it, so skip it */
1683 case DW_TAG_unspecified_parameters:
1684 /* FIXME: no support in dbghelp's internals so far */
1687 FIXME("Unhandled Tag type 0x%lx at %s, for %s\n",
1688 child->abbrev->tag, dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1693 if (subpgm.non_computed_variable || subpgm.frame.kind >= loc_user)
1695 symt_add_function_point(ctx->module, subpgm.func, SymTagCustom,
1696 &subpgm.frame, NULL);
1698 if (subpgm.func) symt_normalize_function(subpgm.ctx->module, subpgm.func);
1703 static struct symt* dwarf2_parse_subroutine_type(dwarf2_parse_context_t* ctx,
1704 dwarf2_debug_info_t* di)
1706 struct symt* ret_type;
1707 struct symt_function_signature* sig_type;
1709 if (di->symt) return di->symt;
1711 TRACE("%s, for %s\n", dwarf2_debug_ctx(ctx), dwarf2_debug_di(di));
1713 if (!(ret_type = dwarf2_lookup_type(ctx, di)))
1715 ret_type = ctx->symt_cache[sc_void];
1719 /* FIXME: assuming C source code */
1720 sig_type = symt_new_function_signature(ctx->module, ret_type, CV_CALL_FAR_C);
1722 if (di->abbrev->have_child) /** any interest to not have child ? */
1724 dwarf2_debug_info_t* child;
1727 for (i=0; i<vector_length(&di->children); i++)
1729 child = *(dwarf2_debug_info_t**)vector_at(&di->children, i);
1731 switch (child->abbrev->tag)
1733 case DW_TAG_formal_parameter:
1734 symt_add_function_signature_parameter(ctx->module, sig_type,
1735 dwarf2_lookup_type(ctx, child));
1737 case DW_TAG_unspecified_parameters:
1738 WARN("Unsupported unspecified parameters\n");
1744 return di->symt = &sig_type->symt;
1747 static void dwarf2_load_one_entry(dwarf2_parse_context_t* ctx,
1748 dwarf2_debug_info_t* di,
1749 struct symt_compiland* compiland)
1751 switch (di->abbrev->tag)
1753 case DW_TAG_typedef:
1754 dwarf2_parse_typedef(ctx, di);
1756 case DW_TAG_base_type:
1757 dwarf2_parse_base_type(ctx, di);
1759 case DW_TAG_pointer_type:
1760 dwarf2_parse_pointer_type(ctx, di);
1762 case DW_TAG_class_type:
1763 dwarf2_parse_udt_type(ctx, di, UdtClass);
1765 case DW_TAG_structure_type:
1766 dwarf2_parse_udt_type(ctx, di, UdtStruct);
1768 case DW_TAG_union_type:
1769 dwarf2_parse_udt_type(ctx, di, UdtUnion);
1771 case DW_TAG_array_type:
1772 dwarf2_parse_array_type(ctx, di);
1774 case DW_TAG_const_type:
1775 dwarf2_parse_const_type(ctx, di);
1777 case DW_TAG_volatile_type:
1778 dwarf2_parse_volatile_type(ctx, di);
1780 case DW_TAG_reference_type:
1781 dwarf2_parse_reference_type(ctx, di);
1783 case DW_TAG_enumeration_type:
1784 dwarf2_parse_enumeration_type(ctx, di);
1786 case DW_TAG_subprogram:
1787 dwarf2_parse_subprogram(ctx, di, compiland);
1789 case DW_TAG_subroutine_type:
1790 dwarf2_parse_subroutine_type(ctx, di);
1792 case DW_TAG_variable:
1794 dwarf2_subprogram_t subpgm;
1797 subpgm.compiland = compiland;
1799 subpgm.frame.kind = loc_absolute;
1800 subpgm.frame.offset = 0;
1801 subpgm.frame.reg = Wine_DW_no_register;
1802 dwarf2_parse_variable(&subpgm, NULL, di);
1806 FIXME("Unhandled Tag type 0x%lx at %s, for %lu\n",
1807 di->abbrev->tag, dwarf2_debug_ctx(ctx), di->abbrev->entry_code);
1811 static void dwarf2_set_line_number(struct module* module, unsigned long address,
1812 const struct vector* v, unsigned file, unsigned line)
1814 struct symt_function* func;
1815 struct symt_ht* symt;
1818 if (!file || !(psrc = vector_at(v, file - 1))) return;
1820 TRACE("%s %lx %s %u\n",
1821 debugstr_w(module->module.ModuleName), address, source_get(module, *psrc), line);
1822 if (!(symt = symt_find_nearest(module, address)) ||
1823 symt->symt.tag != SymTagFunction) return;
1824 func = (struct symt_function*)symt;
1825 symt_add_func_line(module, func, *psrc, line, address - func->address);
1828 static BOOL dwarf2_parse_line_numbers(const dwarf2_section_t* sections,
1829 dwarf2_parse_context_t* ctx,
1830 const char* compile_dir,
1831 unsigned long offset)
1833 dwarf2_traverse_context_t traverse;
1834 unsigned long length;
1835 unsigned version, header_len, insn_size, default_stmt;
1836 unsigned line_range, opcode_base;
1838 const unsigned char* opcode_len;
1840 struct vector files;
1843 /* section with line numbers stripped */
1844 if (sections[section_line].address == ELF_NO_MAP)
1847 traverse.data = sections[section_line].address + offset;
1848 traverse.start_data = traverse.data;
1849 traverse.end_data = traverse.data + 4;
1850 traverse.word_size = ctx->word_size;
1852 length = dwarf2_parse_u4(&traverse);
1853 traverse.end_data = traverse.start_data + length;
1855 version = dwarf2_parse_u2(&traverse);
1856 header_len = dwarf2_parse_u4(&traverse);
1857 insn_size = dwarf2_parse_byte(&traverse);
1858 default_stmt = dwarf2_parse_byte(&traverse);
1859 line_base = (signed char)dwarf2_parse_byte(&traverse);
1860 line_range = dwarf2_parse_byte(&traverse);
1861 opcode_base = dwarf2_parse_byte(&traverse);
1863 opcode_len = traverse.data;
1864 traverse.data += opcode_base - 1;
1866 vector_init(&dirs, sizeof(const char*), 4);
1867 p = vector_add(&dirs, &ctx->pool);
1868 *p = compile_dir ? compile_dir : ".";
1869 while (*traverse.data)
1871 const char* rel = (const char*)traverse.data;
1872 unsigned rellen = strlen(rel);
1873 TRACE("Got include %s\n", rel);
1874 traverse.data += rellen + 1;
1875 p = vector_add(&dirs, &ctx->pool);
1877 if (*rel == '/' || !compile_dir)
1881 /* include directory relative to compile directory */
1882 unsigned baselen = strlen(compile_dir);
1883 char* tmp = pool_alloc(&ctx->pool, baselen + 1 + rellen + 1);
1884 strcpy(tmp, compile_dir);
1885 if (tmp[baselen - 1] != '/') tmp[baselen++] = '/';
1886 strcpy(&tmp[baselen], rel);
1893 vector_init(&files, sizeof(unsigned), 16);
1894 while (*traverse.data)
1896 unsigned int dir_index, mod_time, length;
1901 name = (const char*)traverse.data;
1902 traverse.data += strlen(name) + 1;
1903 dir_index = dwarf2_leb128_as_unsigned(&traverse);
1904 mod_time = dwarf2_leb128_as_unsigned(&traverse);
1905 length = dwarf2_leb128_as_unsigned(&traverse);
1906 dir = *(const char**)vector_at(&dirs, dir_index);
1907 TRACE("Got file %s/%s (%u,%u)\n", dir, name, mod_time, length);
1908 psrc = vector_add(&files, &ctx->pool);
1909 *psrc = source_new(ctx->module, dir, name);
1913 while (traverse.data < traverse.end_data)
1915 unsigned long address = 0;
1918 unsigned is_stmt = default_stmt;
1919 BOOL basic_block = FALSE, end_sequence = FALSE;
1920 unsigned opcode, extopcode, i;
1922 while (!end_sequence)
1924 opcode = dwarf2_parse_byte(&traverse);
1925 TRACE("Got opcode %x\n", opcode);
1927 if (opcode >= opcode_base)
1929 unsigned delta = opcode - opcode_base;
1931 address += (delta / line_range) * insn_size;
1932 line += line_base + (delta % line_range);
1934 dwarf2_set_line_number(ctx->module, address, &files, file, line);
1941 basic_block = FALSE;
1942 dwarf2_set_line_number(ctx->module, address, &files, file, line);
1944 case DW_LNS_advance_pc:
1945 address += insn_size * dwarf2_leb128_as_unsigned(&traverse);
1947 case DW_LNS_advance_line:
1948 line += dwarf2_leb128_as_signed(&traverse);
1950 case DW_LNS_set_file:
1951 file = dwarf2_leb128_as_unsigned(&traverse);
1953 case DW_LNS_set_column:
1954 dwarf2_leb128_as_unsigned(&traverse);
1956 case DW_LNS_negate_stmt:
1959 case DW_LNS_set_basic_block:
1962 case DW_LNS_const_add_pc:
1963 address += ((255 - opcode_base) / line_range) * insn_size;
1965 case DW_LNS_fixed_advance_pc:
1966 address += dwarf2_parse_u2(&traverse);
1968 case DW_LNS_extended_op:
1969 dwarf2_leb128_as_unsigned(&traverse);
1970 extopcode = dwarf2_parse_byte(&traverse);
1973 case DW_LNE_end_sequence:
1974 dwarf2_set_line_number(ctx->module, address, &files, file, line);
1975 end_sequence = TRUE;
1977 case DW_LNE_set_address:
1978 address = ctx->load_offset + dwarf2_parse_addr(&traverse);
1980 case DW_LNE_define_file:
1981 FIXME("not handled %s\n", traverse.data);
1982 traverse.data += strlen((const char *)traverse.data) + 1;
1983 dwarf2_leb128_as_unsigned(&traverse);
1984 dwarf2_leb128_as_unsigned(&traverse);
1985 dwarf2_leb128_as_unsigned(&traverse);
1988 FIXME("Unsupported extended opcode %x\n", extopcode);
1993 WARN("Unsupported opcode %x\n", opcode);
1994 for (i = 0; i < opcode_len[opcode]; i++)
1995 dwarf2_leb128_as_unsigned(&traverse);
2004 static BOOL dwarf2_parse_compilation_unit(const dwarf2_section_t* sections,
2005 struct module* module,
2006 const struct elf_thunk_area* thunks,
2007 dwarf2_traverse_context_t* mod_ctx,
2008 unsigned long load_offset)
2010 dwarf2_parse_context_t ctx;
2011 dwarf2_traverse_context_t abbrev_ctx;
2012 dwarf2_debug_info_t* di;
2013 dwarf2_traverse_context_t cu_ctx;
2014 const unsigned char* comp_unit_start = mod_ctx->data;
2015 unsigned long cu_length;
2016 unsigned short cu_version;
2017 unsigned long cu_abbrev_offset;
2020 cu_length = dwarf2_parse_u4(mod_ctx);
2021 cu_ctx.data = cu_ctx.start_data = mod_ctx->data;
2022 cu_ctx.end_data = mod_ctx->data + cu_length;
2023 mod_ctx->data += cu_length;
2024 cu_version = dwarf2_parse_u2(&cu_ctx);
2025 cu_abbrev_offset = dwarf2_parse_u4(&cu_ctx);
2026 cu_ctx.word_size = dwarf2_parse_byte(&cu_ctx);
2028 TRACE("Compilation Unit Header found at 0x%x:\n",
2029 comp_unit_start - sections[section_debug].address);
2030 TRACE("- length: %lu\n", cu_length);
2031 TRACE("- version: %u\n", cu_version);
2032 TRACE("- abbrev_offset: %lu\n", cu_abbrev_offset);
2033 TRACE("- word_size: %u\n", cu_ctx.word_size);
2035 if (cu_version != 2)
2037 WARN("%u DWARF version unsupported. Wine dbghelp only support DWARF 2.\n",
2042 pool_init(&ctx.pool, 65536);
2043 ctx.sections = sections;
2044 ctx.section = section_debug;
2045 ctx.module = module;
2046 ctx.word_size = cu_ctx.word_size;
2047 ctx.thunks = thunks;
2048 ctx.load_offset = load_offset;
2049 ctx.ref_offset = comp_unit_start - sections[section_debug].address;
2050 memset(ctx.symt_cache, 0, sizeof(ctx.symt_cache));
2051 ctx.symt_cache[sc_void] = &symt_new_basic(module, btVoid, "void", 0)->symt;
2053 abbrev_ctx.start_data = sections[section_abbrev].address + cu_abbrev_offset;
2054 abbrev_ctx.data = abbrev_ctx.start_data;
2055 abbrev_ctx.end_data = sections[section_abbrev].address + sections[section_abbrev].size;
2056 abbrev_ctx.word_size = cu_ctx.word_size;
2057 dwarf2_parse_abbrev_set(&abbrev_ctx, &ctx.abbrev_table, &ctx.pool);
2059 sparse_array_init(&ctx.debug_info_table, sizeof(dwarf2_debug_info_t), 128);
2060 dwarf2_read_one_debug_info(&ctx, &cu_ctx, &di);
2062 if (di->abbrev->tag == DW_TAG_compile_unit)
2064 struct attribute name;
2065 dwarf2_debug_info_t** pdi = NULL;
2066 struct attribute stmt_list, low_pc;
2067 struct attribute comp_dir;
2069 if (!dwarf2_find_attribute(&ctx, di, DW_AT_name, &name))
2070 name.u.string = NULL;
2072 /* get working directory of current compilation unit */
2073 if (!dwarf2_find_attribute(&ctx, di, DW_AT_comp_dir, &comp_dir))
2074 comp_dir.u.string = NULL;
2076 if (!dwarf2_find_attribute(&ctx, di, DW_AT_low_pc, &low_pc))
2077 low_pc.u.uvalue = 0;
2078 di->symt = &symt_new_compiland(module,
2079 ctx.load_offset + low_pc.u.uvalue,
2080 source_new(module, comp_dir.u.string, name.u.string))->symt;
2082 if (di->abbrev->have_child)
2085 for (i=0; i<vector_length(&di->children); i++)
2087 pdi = vector_at(&di->children, i);
2088 dwarf2_load_one_entry(&ctx, *pdi, (struct symt_compiland*)di->symt);
2091 if (dwarf2_find_attribute(&ctx, di, DW_AT_stmt_list, &stmt_list))
2093 if (dwarf2_parse_line_numbers(sections, &ctx, comp_dir.u.string, stmt_list.u.uvalue))
2094 module->module.LineNumbers = TRUE;
2098 else FIXME("Should have a compilation unit here\n");
2099 pool_destroy(&ctx.pool);
2103 static BOOL dwarf2_lookup_loclist(const struct module* module, const BYTE* start,
2105 dwarf2_traverse_context_t* lctx)
2108 const BYTE* ptr = start;
2111 while (ptr < module->dwarf2_info->debug_loc.address + module->dwarf2_info->debug_loc.size)
2113 beg = dwarf2_get_u4(ptr); ptr += 4;
2114 end = dwarf2_get_u4(ptr); ptr += 4;
2115 if (!beg && !end) break;
2116 len = dwarf2_get_u2(ptr); ptr += 2;
2118 if (beg <= ip && ip < end)
2121 lctx->end_data = ptr + len;
2122 lctx->word_size = 4; /* FIXME word size !!! */
2127 WARN("Couldn't find ip in location list\n");
2131 static enum location_error loc_compute_frame(struct process* pcs,
2132 const struct module* module,
2133 const struct symt_function* func,
2134 DWORD ip, struct location* frame)
2136 struct symt** psym = NULL;
2137 struct location* pframe;
2138 dwarf2_traverse_context_t lctx;
2139 enum location_error err;
2142 for (i=0; i<vector_length(&func->vchildren); i++)
2144 psym = vector_at(&func->vchildren, i);
2145 if ((*psym)->tag == SymTagCustom)
2147 pframe = &((struct symt_hierarchy_point*)*psym)->loc;
2149 /* First, recompute the frame information, if needed */
2150 switch (pframe->kind)
2156 case loc_dwarf2_location_list:
2157 WARN("Searching loclist for %s\n", func->hash_elt.name);
2158 if (!dwarf2_lookup_loclist(module,
2159 module->dwarf2_info->debug_loc.address + pframe->offset,
2161 return loc_err_out_of_scope;
2162 if ((err = compute_location(&lctx, frame, pcs->handle, NULL)) < 0) return err;
2163 if (frame->kind >= loc_user)
2165 WARN("Couldn't compute runtime frame location\n");
2166 return loc_err_too_complex;
2170 WARN("Unsupported frame kind %d\n", pframe->kind);
2171 return loc_err_internal;
2176 WARN("Couldn't find Custom function point, whilst location list offset is searched\n");
2177 return loc_err_internal;
2180 static void dwarf2_location_compute(struct process* pcs,
2181 const struct module* module,
2182 const struct symt_function* func,
2183 struct location* loc)
2185 struct location frame;
2188 dwarf2_traverse_context_t lctx;
2190 if (!func->container || func->container->tag != SymTagCompiland)
2192 WARN("We'd expect function %s's container to exist and be a compiland\n", func->hash_elt.name);
2193 err = loc_err_internal;
2197 /* instruction pointer relative to compiland's start */
2198 ip = pcs->ctx_frame.InstructionOffset - ((struct symt_compiland*)func->container)->address;
2200 if ((err = loc_compute_frame(pcs, module, func, ip, &frame)) == 0)
2204 case loc_dwarf2_location_list:
2205 /* Then, if the variable has a location list, find it !! */
2206 if (dwarf2_lookup_loclist(module,
2207 module->dwarf2_info->debug_loc.address + loc->offset,
2210 err = loc_err_out_of_scope;
2212 case loc_dwarf2_block:
2213 /* or if we have a copy of an existing block, get ready for it */
2215 unsigned* ptr = (unsigned*)loc->offset;
2217 lctx.data = (const BYTE*)(ptr + 1);
2218 lctx.end_data = lctx.data + *ptr;
2219 lctx.word_size = 4; /* FIXME !! */
2222 /* now get the variable */
2223 err = compute_location(&lctx, loc, pcs->handle, &frame);
2230 WARN("Unsupported local kind %d\n", loc->kind);
2231 err = loc_err_internal;
2237 loc->kind = loc_register;
2242 BOOL dwarf2_parse(struct module* module, unsigned long load_offset,
2243 const struct elf_thunk_area* thunks,
2244 const unsigned char* debug, unsigned int debug_size,
2245 const unsigned char* abbrev, unsigned int abbrev_size,
2246 const unsigned char* str, unsigned int str_size,
2247 const unsigned char* line, unsigned int line_size,
2248 const unsigned char* loclist, unsigned int loclist_size)
2250 dwarf2_section_t section[section_max];
2252 dwarf2_traverse_context_t mod_ctx;
2254 mod_ctx.start_data = mod_ctx.data = debug;
2255 mod_ctx.end_data = debug + debug_size;
2257 module->loc_compute = dwarf2_location_compute;
2259 section[section_debug].address = debug;
2260 section[section_debug].size = debug_size;
2261 section[section_abbrev].address = abbrev;
2262 section[section_abbrev].size = abbrev_size;
2263 section[section_string].address = str;
2264 section[section_string].size = str_size;
2265 section[section_line].address = line;
2266 section[section_line].size = line_size;
2270 /* initialize the dwarf2 specific info block for this module.
2271 * As we'll need later on the .debug_loc section content, we copy it in
2272 * the module structure for later reuse
2274 module->dwarf2_info = HeapAlloc(GetProcessHeap(), 0, sizeof(*module->dwarf2_info) + loclist_size);
2275 if (!module->dwarf2_info) return FALSE;
2276 ptr = (unsigned char*)(module->dwarf2_info + 1);
2277 memcpy(ptr, loclist, loclist_size);
2278 module->dwarf2_info->debug_loc.address = ptr;
2279 module->dwarf2_info->debug_loc.size = loclist_size;
2282 while (mod_ctx.data < mod_ctx.end_data)
2284 dwarf2_parse_compilation_unit(section, module, thunks, &mod_ctx, load_offset);
2286 module->module.SymType = SymDia;
2287 module->module.CVSig = 'D' | ('W' << 8) | ('A' << 16) | ('R' << 24);
2288 /* FIXME: we could have a finer grain here */
2289 module->module.GlobalSymbols = TRUE;
2290 module->module.TypeInfo = TRUE;
2291 module->module.SourceIndexed = TRUE;
2292 module->module.Publics = TRUE;