OpenE2K
/
dwarves
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

[PAHOLE]: Check if types of struct and union members were already resized 

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2008-01-12 15:25:12 -02:00
parent f086201b9e
commit 2c58da36fa
3 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dwarves.c
View File

@ -432,6 +432,7 @@ static void type__init(struct type *self, Dwarf_Die *die)
self->specification = attr_type(die, DW_AT_specification);
self->definition_emitted = 0;
self->fwd_decl_emitted = 0;
self->resized = 0;
self->nr_members = 0;
}

1
dwarves.h
View File

@ -112,6 +112,7 @@ struct type {
uint8_t declaration; /* only one bit used */
uint8_t definition_emitted:1;
uint8_t fwd_decl_emitted:1;
uint8_t resized:1;
};
static inline struct class *type__class(const struct type *self)

22
pahole.c
View File

@ -388,6 +388,8 @@ static int cu_unique_iterator(struct cu *cu, void *cookie)
return cu__for_each_tag(cu, unique_iterator, cookie, tag__filter);
}
static void union__find_new_size(struct tag *tag, struct cu *cu);
static void class__resize_LP(struct tag *tag, struct cu *cu)
{
struct tag *tag_pos;
@ -395,6 +397,11 @@ static void class__resize_LP(struct tag *tag, struct cu *cu)
size_t word_size_diff;
size_t orig_size = self->type.size;
if (tag__type(tag)->resized)
return;
tag__type(tag)->resized = 1;
if (original_word_size > word_size)
word_size_diff = original_word_size - word_size;
else
@ -424,6 +431,10 @@ static void class__resize_LP(struct tag *tag, struct cu *cu)
break;
case DW_TAG_structure_type:
case DW_TAG_union_type:
if (type->tag == DW_TAG_union_type)
union__find_new_size(type, cu);
else
class__resize_LP(type, cu);
diff = tag__type(type)->size_diff;
break;
}
@ -455,6 +466,11 @@ static void union__find_new_size(struct tag *tag, struct cu *cu)
struct type *self = tag__type(tag);
size_t max_size = 0;
if (self->resized)
return;
self->resized = 1;
type__for_each_tag(self, tag_pos) {
struct tag *type;
size_t size;
@ -465,6 +481,12 @@ static void union__find_new_size(struct tag *tag, struct cu *cu)
continue;
type = cu__find_tag_by_id(cu, tag_pos->type);
if (type->tag == DW_TAG_union_type)
union__find_new_size(type, cu);
else if (type->tag == DW_TAG_structure_type)
class__resize_LP(type, cu);
size = tag__size(type, cu);
if (size > max_size)
max_size = size;