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dbghelp/dwarf: Support DW_FORM_ref_addr in type DIE lookup using the new cross-CU DIE mechanisms. 

Signed-off-by: Eric Pouech <eric.pouech@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Eric Pouech 2021-09-15 10:38:17 +02:00 committed by Alexandre Julliard
parent 8c22d665a8
commit 34b06f873a
1 changed files with 16 additions and 3 deletions
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19
dlls/dbghelp/dwarf.c
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@ -1044,8 +1044,21 @@ static struct symt* dwarf2_lookup_type(dwarf2_parse_context_t* ctx,
return ctx->module_ctx->symt_cache[sc_void]; return ctx->module_ctx->symt_cache[sc_void];
if (!(type = sparse_array_find(&ctx->debug_info_table, attr.u.uvalue))) if (!(type = sparse_array_find(&ctx->debug_info_table, attr.u.uvalue)))
{ {
FIXME("Unable to find back reference to type %lx\n", attr.u.uvalue); if (attr.form == DW_FORM_ref_addr)
return ctx->module_ctx->symt_cache[sc_unknown]; {
dwarf2_parse_context_t* ref_ctx = dwarf2_locate_cu(ctx->module_ctx, attr.u.uvalue);
/* ensure CU is fully loaded */
if (ref_ctx && dwarf2_parse_compilation_unit(ref_ctx))
{
type = sparse_array_find(&ref_ctx->debug_info_table, attr.u.uvalue);
if (type) TRACE("Found type ref %lx in another CU %s\n", attr.u.uvalue, dwarf2_debug_ctx(ref_ctx));
}
}
if (!type)
{
FIXME("Unable to find back reference to type 0x%lx (form=0x%lx)\n", attr.u.uvalue, attr.form);
return ctx->module_ctx->symt_cache[sc_unknown];
}
} }
if (type == di) if (type == di)
{ {
@ -2454,7 +2467,7 @@ unsigned dwarf2_cache_cuhead(struct dwarf2_module_info_s* module, struct symt_co
return TRUE; return TRUE;
} }
static inline dwarf2_parse_context_t* dwarf2_locate_cu(dwarf2_parse_module_context_t* module_ctx, ULONG_PTR ref) static dwarf2_parse_context_t* dwarf2_locate_cu(dwarf2_parse_module_context_t* module_ctx, ULONG_PTR ref)
{ {
unsigned i; unsigned i;
dwarf2_parse_context_t* ctx; dwarf2_parse_context_t* ctx;