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[LIB]: Add support for DW_AT_specification in DW_TAG_subprogram 

C++ feature, we have to look for the id, then abstract_origin and then
specification.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-01-13 11:37:41 -02:00
parent 5dcd02daa3
commit 7e57db18d7
2 changed files with 27 additions and 8 deletions
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34
dwarves.c
View File

@ -680,6 +680,17 @@ static struct variable *cu__find_variable_by_id(const struct cu *self,
return NULL;
}
static struct tag *ftype__find_parm_by_id(const struct ftype *self,
const Dwarf_Off id)
{
struct tag *pos;
list_for_each_entry(pos, &self->parms, node)
if (pos->id == id)
return pos;
return 0;
}
static struct parameter *cu__find_parameter_by_id(const struct cu *self,
const Dwarf_Off id)
{
@ -691,11 +702,14 @@ static struct parameter *cu__find_parameter_by_id(const struct cu *self,
if (pos->tag == DW_TAG_subprogram) {
struct function *fn = tag__function(pos);
struct tag *tag =
lexblock__find_tag_by_id(&fn->lexblock, id);
if (tag != NULL)
return tag__parameter(tag);
struct tag *tag = ftype__find_parm_by_id(&fn->proto,
id);
if (tag != NULL) {
tag = lexblock__find_tag_by_id(&fn->lexblock,
id);
if (tag != NULL)
return tag__parameter(tag);
}
}
return NULL;
@ -1290,6 +1304,7 @@ static struct function *function__new(Dwarf_Die *die)
self->external = dwarf_hasattr(die, DW_AT_external);
self->abstract_origin = attr_numeric(die,
DW_AT_abstract_origin);
self->specification = attr_numeric(die, DW_AT_specification);
}
return self;
@ -1303,8 +1318,12 @@ const char *function__name(struct function *self, const struct cu *cu)
struct tag *tag = cu__find_tag_by_id(cu,
self->abstract_origin);
if (tag == NULL) {
tag__type_not_found(&self->proto.tag, cu);
return NULL;
/* ... or a DW_TAG_specification... */
tag = cu__find_tag_by_id(cu, self->specification);
if (tag == NULL) {
tag__type_not_found(&self->proto.tag, cu);
return NULL;
}
}
/* ... and now we cache the result in this tag ->name field */
self->name = tag__function(tag)->name;
@ -1618,7 +1637,6 @@ size_t ftype__snprintf(const struct ftype *self, const struct cu *cu,
name = parameter__name(pos, cu);
type = cu__find_tag_by_id(cu, parameter__type(pos, cu));
if (type == NULL) {
tag__type_not_found(&pos->tag, cu);
stype = "<ERROR>";
goto print_it;
}

1
dwarves.h
View File

@ -169,6 +169,7 @@ struct function {
struct lexblock lexblock;
const char *name;
Dwarf_Off abstract_origin;
Dwarf_Off specification;
size_t cu_total_size_inline_expansions;
uint16_t cu_total_nr_inline_expansions;
uint8_t inlined; /* two bits used */