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[PAHOLE]: Implement --holes to show only the structs with holes 

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-11-27 15:54:02 -02:00
parent 674d99e8fa
commit fceec841ca
1 changed files with 25 additions and 1 deletions
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26
pahole.c
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@ -92,6 +92,7 @@ static struct option long_options[] = {
{ "cacheline_size", required_argument, NULL, 'c' },
{ "class_name_len", no_argument, NULL, 'N' },
{ "help", no_argument, NULL, 'h' },
{ "holes", no_argument, NULL, 'H' },
{ "nr_members", no_argument, NULL, 'n' },
{ "sizes", no_argument, NULL, 's' },
{ "total_struct_stats", no_argument, NULL, 't' },
@ -104,6 +105,7 @@ static void usage(void)
"usage: pfunct [options] <file_name> {<function_name>}\n"
" where: \n"
" -h, --help show usage info\n"
" -H, --holes show only structs with holes\n"
" -c, --cacheline_size=<size> set cacheline size (default=%d)\n"
" -m, --nr_members show number of members\n"
" -N, --class_name_len show size of classes\n"
@ -152,6 +154,24 @@ static int cu_sizes_iterator(struct cu *cu, void *cookie)
return cu__for_each_class(cu, sizes_iterator, cookie);
}
static int holes_iterator(struct class *class, void *cookie)
{
struct class *typedef_alias;
if (!class__is_struct(class, &typedef_alias))
return 0;
class__find_holes(typedef_alias ?: class);
if (class->nr_holes != 0)
class__print(typedef_alias ?: class);
return 0;
}
static int cu_holes_iterator(struct cu *cu, void *cookie)
{
return cu__for_each_class(cu, holes_iterator, NULL);
}
int main(int argc, char *argv[])
{
int option, option_index;
@ -162,11 +182,13 @@ int main(int argc, char *argv[])
int show_nr_members = 0;
int show_class_name_len = 0;
int show_total_structure_stats = 0;
int show_only_with_holes = 0;
while ((option = getopt_long(argc, argv, "c:hnNst",
while ((option = getopt_long(argc, argv, "c:hHnNst",
long_options, &option_index)) >= 0)
switch (option) {
case 'c': cacheline_size = atoi(optarg); break;
case 'H': show_only_with_holes = 1; break;
case 's': show_sizes = 1; break;
case 'n': show_nr_members = 1; break;
case 'N': show_class_name_len = 1; break;
@ -206,6 +228,8 @@ int main(int argc, char *argv[])
cus__for_each_cu(cus, cu_nr_members_iterator, NULL);
else if (show_sizes)
cus__for_each_cu(cus, cu_sizes_iterator, NULL);
else if (show_only_with_holes)
cus__for_each_cu(cus, cu_holes_iterator, NULL);
else if (class_name != NULL) {
struct class *class = cus__find_class_by_name(cus, class_name);
struct class *alias;