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[PAHOLE] In --packable show just the savings when not in verbose mode 

Example:

[acme@filo pahole]$ pahole -P -e examples/dccp.ko.x86_64 | sort -k2 -nr | head -20
hh_cache: 112
softnet_data: 64
task_struct: 56
net_device: 56
module: 32
inet_hashinfo: 32
zone: 24
device: 24
thread_struct: 16
super_block: 16
mm_struct: 16
dccp_sock: 16
block_device: 16
socket: 8
signal_struct: 8
sighand_struct: 8
rt6_info: 8
proto: 8
pglist_data: 8
nf_bridge_info: 8
[acme@filo pahole]$

Some may well be false positives or gcc DWARF emitter artifacts, checking...

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-04-01 10:03:04 -03:00
parent ef79438fc2
commit 57ff4ea736
1 changed files with 13 additions and 3 deletions
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16
pahole.c
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@ -158,7 +158,13 @@ static void print_classes(void (*formatter)(const struct structure *s))
struct structure *pos;
list_for_each_entry(pos, &structures__list, node)
formatter(pos);
if (show_packable && !global_verbose) {
const struct class *c = pos->class;
const size_t savings = (class__size(c) -
class__size(c->priv));
printf("%s: %zd\n", class__name(c), savings);
} else
formatter(pos);
}
static struct cu *cu__filter(struct cu *cu)
@ -172,7 +178,7 @@ static struct cu *cu__filter(struct cu *cu)
return cu;
}
static int class__packable(const struct class *self, const struct cu *cu)
static int class__packable(struct class *self, const struct cu *cu)
{
struct class *clone;
size_t savings;
@ -185,8 +191,12 @@ static int class__packable(const struct class *self, const struct cu *cu)
return 0;
class__reorganize(clone, cu, 0, stdout);
savings = class__size(self) - class__size(clone);
if (savings != 0) {
self->priv = clone;
return 1;
}
class__delete(clone);
return savings != 0;
return 0;
}
static void class__dupmsg(const struct class *self, const struct cu *cu,