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dbghelp: Added an unknown type in symt_cache for handling bad references to types.
Signed-off-by: Eric Pouech <eric.pouech@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -163,8 +163,9 @@ typedef struct dwarf2_traverse_context_s
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} dwarf2_traverse_context_t;
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/* symt_cache indexes */
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#define sc_void 0
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#define sc_num 1
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#define sc_void 0
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#define sc_unknown 1
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#define sc_num 2
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typedef struct dwarf2_parse_context_s
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{
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@ -178,7 +179,7 @@ typedef struct dwarf2_parse_context_s
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struct sparse_array debug_info_table;
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ULONG_PTR load_offset;
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ULONG_PTR ref_offset;
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struct symt* symt_cache[sc_num]; /* void */
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struct symt* symt_cache[sc_num]; /* void, unknown */
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char* cpp_name;
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} dwarf2_parse_context_t;
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@ -946,11 +947,12 @@ static struct symt* dwarf2_lookup_type(dwarf2_parse_context_t* ctx,
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dwarf2_debug_info_t* type;
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if (!dwarf2_find_attribute(ctx, di, DW_AT_type, &attr))
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/* this is only valid if current language of CU is C or C++ */
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return ctx->symt_cache[sc_void];
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if (!(type = sparse_array_find(&ctx->debug_info_table, attr.u.uvalue)))
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{
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FIXME("Unable to find back reference to type %lx\n", attr.u.uvalue);
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return ctx->symt_cache[sc_void];
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return ctx->symt_cache[sc_unknown];
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}
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if (!type->symt)
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{
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@ -959,7 +961,7 @@ static struct symt* dwarf2_lookup_type(dwarf2_parse_context_t* ctx,
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if (!type->symt)
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{
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FIXME("Unable to load forward reference for tag %lx\n", type->abbrev->tag);
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return ctx->symt_cache[sc_void];
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return ctx->symt_cache[sc_unknown];
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}
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}
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return type->symt;
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@ -2373,6 +2375,7 @@ static BOOL dwarf2_parse_compilation_unit(const dwarf2_section_t* sections,
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ctx.ref_offset = comp_unit_start - sections[section_debug].address;
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memset(ctx.symt_cache, 0, sizeof(ctx.symt_cache));
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ctx.symt_cache[sc_void] = &symt_new_basic(module, btVoid, "void", 0)->symt;
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ctx.symt_cache[sc_unknown] = &symt_new_basic(module, btNoType, "# unknown", 0)->symt;
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ctx.cpp_name = NULL;
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abbrev_ctx.data = sections[section_abbrev].address + cu_abbrev_offset;
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