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[PAHOLE]: Introduce --bit_holes 

So that we can see only the structs that have more than the specified number of
bit holes.

Can be combined with --holes to see structs that have bit and byte holes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-12-07 13:08:20 -02:00
parent 2ac0afbf8e
commit c5a4d29825
1 changed files with 11 additions and 6 deletions
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17
pahole.c
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@ -24,6 +24,9 @@ static size_t cu__exclude_prefix_len;
static char *decl_exclude_prefix;
static size_t decl_exclude_prefix_len;
static unsigned short nr_holes;
static unsigned short nr_bit_holes;
struct structure {
struct list_head node;
const struct class *class;
@ -143,6 +146,7 @@ static struct option long_options[] = {
{ "cacheline_size", required_argument, NULL, 'c' },
{ "class_name_len", no_argument, NULL, 'N' },
{ "help", no_argument, NULL, 'h' },
{ "bit_holes", required_argument, NULL, 'B' },
{ "holes", required_argument, NULL, 'H' },
{ "nr_members", no_argument, NULL, 'n' },
{ "sizes", no_argument, NULL, 's' },
@ -159,6 +163,7 @@ static void usage(void)
"usage: pfunct [options] <file_name> {<function_name>}\n"
" where: \n"
" -h, --help show usage info\n"
" -B, --bit_holes <nr_holes> show only structs at least <nr_holes> bit holes\n"
" -H, --holes <nr_holes> show only structs at least <nr_holes> holes\n"
" -c, --cacheline_size <size> set cacheline size (default=%d)\n"
" -n, --nr_members show number of members\n"
@ -201,9 +206,9 @@ static int cu_sizes_iterator(struct cu *cu, void *cookie)
static int holes_iterator(struct class *class, void *cookie)
{
const unsigned int nr_holes = *(unsigned int *)cookie;
class__find_holes(class);
if (class->nr_holes >= nr_holes)
if ((nr_holes != 0 && class->nr_holes >= nr_holes) ||
(nr_bit_holes != 0 && class->nr_bit_holes >= nr_bit_holes))
class__print(class);
return 0;
}
@ -251,13 +256,13 @@ int main(int argc, char *argv[])
FLAG_show_class_name_len,
FLAG_show_total_structure_stats
};
int nr_holes = 0;
while ((option = getopt_long(argc, argv, "c:D:hH:nNstx:X:",
while ((option = getopt_long(argc, argv, "B:c:D:hH:nNstx:X:",
long_options, &option_index)) >= 0)
switch (option) {
case 'c': cacheline_size = atoi(optarg); break;
case 'H': nr_holes = atoi(optarg); break;
case 'B': nr_bit_holes = atoi(optarg); break;
case 's': opts |= FLAG_show_sizes; break;
case 'n': opts |= FLAG_show_nr_members; break;
case 'N': opts |= FLAG_show_class_name_len; break;
@ -311,8 +316,8 @@ int main(int argc, char *argv[])
else if (opts & FLAG_show_class_name_len)
cus__for_each_cu(cus, cu_class_name_len_iterator, NULL,
cu__filter);
else if (nr_holes > 0)
cus__for_each_cu(cus, cu_holes_iterator, &nr_holes, cu__filter);
else if (nr_holes > 0 || nr_bit_holes > 0)
cus__for_each_cu(cus, cu_holes_iterator, NULL, cu__filter);
else if (class_name != NULL) {
struct class *class = cus__find_class_by_name(cus, class_name);
struct class *alias;