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Subject[PATCH 05/10] perf, tools: Use a common function to resolve symbol or name
Date
From: Andi Kleen <ak@linux.intel.com>

Refactor the duplicated code to resolve the symbol name or
the address of a symbol into a single function.

Used in next patch to add common functionality.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/ui/browsers/hists.c | 17 -----------------
tools/perf/ui/gtk/hists.c | 11 +----------
tools/perf/ui/stdio/hist.c | 23 +++++++++--------------
tools/perf/util/callchain.c | 19 +++++++++++++++++++
tools/perf/util/callchain.h | 3 +++
5 files changed, 32 insertions(+), 41 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index cfb976b..12c17c5 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -463,23 +463,6 @@ out:
return key;
}

-static char *callchain_list__sym_name(struct callchain_list *cl,
- char *bf, size_t bfsize, bool show_dso)
-{
- int printed;
-
- if (cl->ms.sym)
- printed = scnprintf(bf, bfsize, "%s", cl->ms.sym->name);
- else
- printed = scnprintf(bf, bfsize, "%#" PRIx64, cl->ip);
-
- if (show_dso)
- scnprintf(bf + printed, bfsize - printed, " %s",
- cl->ms.map ? cl->ms.map->dso->short_name : "unknown");
-
- return bf;
-}
-
struct callchain_print_arg {
/* for hists browser */
off_t row_offset;
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index fc654fb..4b3585e 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -89,15 +89,6 @@ void perf_gtk__init_hpp(void)
perf_gtk__hpp_color_overhead_acc;
}

-static void callchain_list__sym_name(struct callchain_list *cl,
- char *bf, size_t bfsize)
-{
- if (cl->ms.sym)
- scnprintf(bf, bfsize, "%s", cl->ms.sym->name);
- else
- scnprintf(bf, bfsize, "%#" PRIx64, cl->ip);
-}
-
static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
GtkTreeIter *parent, int col, u64 total)
{
@@ -128,7 +119,7 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
scnprintf(buf, sizeof(buf), "%5.2f%%", percent);
gtk_tree_store_set(store, &iter, 0, buf, -1);

- callchain_list__sym_name(chain, buf, sizeof(buf));
+ callchain_list__sym_name(chain, buf, sizeof(buf), false);
gtk_tree_store_set(store, &iter, col, buf, -1);

if (need_new_parent) {
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 15b451a..dfcbc90 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -41,6 +41,7 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
{
int i;
size_t ret = 0;
+ char bf[1024];

ret += callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++) {
@@ -56,11 +57,8 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
} else
ret += fprintf(fp, "%s", " ");
}
- if (chain->ms.sym)
- ret += fprintf(fp, "%s\n", chain->ms.sym->name);
- else
- ret += fprintf(fp, "0x%0" PRIx64 "\n", chain->ip);
-
+ fputs(callchain_list__sym_name(chain, bf, sizeof(bf), false), fp);
+ fputc('\n', fp);
return ret;
}

@@ -168,6 +166,7 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
struct rb_node *node;
int i = 0;
int ret = 0;
+ char bf[1024];

/*
* If have one single callchain root, don't bother printing
@@ -196,10 +195,8 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
} else
ret += callchain__fprintf_left_margin(fp, left_margin);

- if (chain->ms.sym)
- ret += fprintf(fp, " %s\n", chain->ms.sym->name);
- else
- ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
+ ret += fprintf(fp, "%s\n", callchain_list__sym_name(chain, bf, sizeof(bf),
+ false));

if (++entries_printed == callchain_param.print_limit)
break;
@@ -219,6 +216,7 @@ static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
{
struct callchain_list *chain;
size_t ret = 0;
+ char bf[1024];

if (!node)
return 0;
@@ -229,11 +227,8 @@ static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
list_for_each_entry(chain, &node->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
- if (chain->ms.sym)
- ret += fprintf(fp, " %s\n", chain->ms.sym->name);
- else
- ret += fprintf(fp, " %p\n",
- (void *)(long)chain->ip);
+ ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
+ bf, sizeof(bf), false));
}

return ret;
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 7131ee3..10870c9 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -812,3 +812,22 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
out:
return 1;
}
+
+char *callchain_list__sym_name(struct callchain_list *cl,
+ char *bf, size_t bfsize, bool show_dso)
+{
+ int printed;
+
+ if (cl->ms.sym) {
+ printed = scnprintf(bf, bfsize, "%s", cl->ms.sym->name);
+ } else
+ printed = scnprintf(bf, bfsize, "%#" PRIx64, cl->ip);
+
+ if (show_dso)
+ scnprintf(bf + printed, bfsize - printed, " %s",
+ cl->ms.map ?
+ cl->ms.map->dso->short_name :
+ "unknown");
+
+ return bf;
+}
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index f570b8e..5d5200c 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -194,4 +194,7 @@ static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused,
}
#endif

+char *callchain_list__sym_name(struct callchain_list *cl,
+ char *bf, size_t bfsize, bool show_dso);
+
#endif /* __PERF_CALLCHAIN_H */
--
1.9.3


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