[PATCH v2 10/10] perf tools: Move TUI-specific fields out of map_symbol

From: Namhyung Kim
Date: Mon May 04 2015 - 21:19:34 EST


The has_children and unfolded fields don't belong to struct map_symbol
since they're used by TUI only. Move those fields out of map_symbol
since the struct is also used by other places.

This will also help to compact the sizeof struct hist_entry.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1429687101-4360-11-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
fix segfault due to recursion in hist_entry__set_folding().

tools/perf/ui/browsers/hists.c | 57 +++++++++++++++++++-----------------------
tools/perf/util/callchain.h | 4 +++
tools/perf/util/hist.c | 2 +-
tools/perf/util/sort.h | 2 ++
tools/perf/util/symbol.h | 2 --
5 files changed, 33 insertions(+), 34 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 8733d577db78..7a70493e938c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -63,7 +63,7 @@ static int hist_browser__get_folding(struct hist_browser *browser)
struct hist_entry *he =
rb_entry(nd, struct hist_entry, rb_node);

- if (he->ms.unfolded)
+ if (he->unfolded)
unfolded_rows += he->nr_rows;
}
return unfolded_rows;
@@ -139,24 +139,19 @@ static char tree__folded_sign(bool unfolded)
return unfolded ? '-' : '+';
}

-static char map_symbol__folded(const struct map_symbol *ms)
-{
- return ms->has_children ? tree__folded_sign(ms->unfolded) : ' ';
-}
-
static char hist_entry__folded(const struct hist_entry *he)
{
- return map_symbol__folded(&he->ms);
+ return he->has_children ? tree__folded_sign(he->unfolded) : ' ';
}

static char callchain_list__folded(const struct callchain_list *cl)
{
- return map_symbol__folded(&cl->ms);
+ return cl->has_children ? tree__folded_sign(cl->unfolded) : ' ';
}

-static void map_symbol__set_folding(struct map_symbol *ms, bool unfold)
+static void callchain_list__set_folding(struct callchain_list *cl, bool unfold)
{
- ms->unfolded = unfold ? ms->has_children : false;
+ cl->unfolded = unfold ? cl->has_children : false;
}

static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
@@ -192,7 +187,7 @@ static int callchain_node__count_rows(struct callchain_node *node)

list_for_each_entry(chain, &node->val, list) {
++n;
- unfolded = chain->ms.unfolded;
+ unfolded = chain->unfolded;
}

if (unfolded)
@@ -214,15 +209,15 @@ static int callchain__count_rows(struct rb_root *chain)
return n;
}

-static bool map_symbol__toggle_fold(struct map_symbol *ms)
+static bool hist_entry__toggle_fold(struct hist_entry *he)
{
- if (!ms)
+ if (!he)
return false;

- if (!ms->has_children)
+ if (!he->has_children)
return false;

- ms->unfolded = !ms->unfolded;
+ he->unfolded = !he->unfolded;
return true;
}

@@ -238,10 +233,10 @@ static void callchain_node__init_have_children_rb_tree(struct callchain_node *no
list_for_each_entry(chain, &child->val, list) {
if (first) {
first = false;
- chain->ms.has_children = chain->list.next != &child->val ||
+ chain->has_children = chain->list.next != &child->val ||
!RB_EMPTY_ROOT(&child->rb_root);
} else
- chain->ms.has_children = chain->list.next == &child->val &&
+ chain->has_children = chain->list.next == &child->val &&
!RB_EMPTY_ROOT(&child->rb_root);
}

@@ -255,11 +250,11 @@ static void callchain_node__init_have_children(struct callchain_node *node,
struct callchain_list *chain;

chain = list_entry(node->val.next, struct callchain_list, list);
- chain->ms.has_children = has_sibling;
+ chain->has_children = has_sibling;

if (!list_empty(&node->val)) {
chain = list_entry(node->val.prev, struct callchain_list, list);
- chain->ms.has_children = !RB_EMPTY_ROOT(&node->rb_root);
+ chain->has_children = !RB_EMPTY_ROOT(&node->rb_root);
}

callchain_node__init_have_children_rb_tree(node);
@@ -279,7 +274,7 @@ static void callchain__init_have_children(struct rb_root *root)
static void hist_entry__init_have_children(struct hist_entry *he)
{
if (!he->init_have_children) {
- he->ms.has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
+ he->has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
callchain__init_have_children(&he->sorted_chain);
he->init_have_children = true;
}
@@ -287,14 +282,14 @@ static void hist_entry__init_have_children(struct hist_entry *he)

static bool hist_browser__toggle_fold(struct hist_browser *browser)
{
- if (map_symbol__toggle_fold(browser->selection)) {
+ if (hist_entry__toggle_fold(browser->he_selection)) {
struct hist_entry *he = browser->he_selection;

hist_entry__init_have_children(he);
browser->b.nr_entries -= he->nr_rows;
browser->nr_callchain_rows -= he->nr_rows;

- if (he->ms.unfolded)
+ if (he->unfolded)
he->nr_rows = callchain__count_rows(&he->sorted_chain);
else
he->nr_rows = 0;
@@ -321,8 +316,8 @@ static int callchain_node__set_folding_rb_tree(struct callchain_node *node, bool

list_for_each_entry(chain, &child->val, list) {
++n;
- map_symbol__set_folding(&chain->ms, unfold);
- has_children = chain->ms.has_children;
+ callchain_list__set_folding(chain, unfold);
+ has_children = chain->has_children;
}

if (has_children)
@@ -340,8 +335,8 @@ static int callchain_node__set_folding(struct callchain_node *node, bool unfold)

list_for_each_entry(chain, &node->val, list) {
++n;
- map_symbol__set_folding(&chain->ms, unfold);
- has_children = chain->ms.has_children;
+ callchain_list__set_folding(chain, unfold);
+ has_children = chain->has_children;
}

if (has_children)
@@ -366,9 +361,9 @@ static int callchain__set_folding(struct rb_root *chain, bool unfold)
static void hist_entry__set_folding(struct hist_entry *he, bool unfold)
{
hist_entry__init_have_children(he);
- map_symbol__set_folding(&he->ms, unfold);
+ he->unfolded = unfold ? he->has_children : false;

- if (he->ms.has_children) {
+ if (he->has_children) {
int n = callchain__set_folding(&he->sorted_chain, unfold);
he->nr_rows = unfold ? n : 0;
} else
@@ -1019,7 +1014,7 @@ do_offset:
if (offset > 0) {
do {
h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded) {
+ if (h->unfolded) {
u16 remaining = h->nr_rows - h->row_offset;
if (offset > remaining) {
offset -= remaining;
@@ -1040,7 +1035,7 @@ do_offset:
} else if (offset < 0) {
while (1) {
h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded) {
+ if (h->unfolded) {
if (first) {
if (-offset > h->row_offset) {
offset += h->row_offset;
@@ -1077,7 +1072,7 @@ do_offset:
* row_offset at its last entry.
*/
h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded)
+ if (h->unfolded)
h->row_offset = h->nr_rows;
break;
}
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 6033a0a212ca..679c2c6d8ade 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -72,6 +72,10 @@ extern struct callchain_param callchain_param;
struct callchain_list {
u64 ip;
struct map_symbol ms;
+ struct /* for TUI */ {
+ bool unfolded;
+ bool has_children;
+ };
char *srcline;
struct list_head list;
};
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cc22b9158b93..338770679863 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1163,7 +1163,7 @@ static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h
return;

/* force fold unfiltered entry for simplicity */
- h->ms.unfolded = false;
+ h->unfolded = false;
h->row_offset = 0;
h->nr_rows = 0;

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 4d923e6e0069..e97cd476d336 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -109,6 +109,8 @@ struct hist_entry {
u16 row_offset;
u16 nr_rows;
bool init_have_children;
+ bool unfolded;
+ bool has_children;
};
};
char *srcline;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 90965296c129..bef47ead1d9b 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -158,8 +158,6 @@ struct ref_reloc_sym {
struct map_symbol {
struct map *map;
struct symbol *sym;
- bool unfolded;
- bool has_children;
};

struct addr_map_symbol {
--
2.3.7

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