[tip:perf/core] perf c2c report: Add 'iaddr' dimension key

From: tip-bot for Jiri Olsa
Date: Sat Oct 22 2016 - 04:39:01 EST


Commit-ID: 43575a95207a88e2f8ccb5e4130a808e325816a7
Gitweb: http://git.kernel.org/tip/43575a95207a88e2f8ccb5e4130a808e325816a7
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Tue, 3 May 2016 21:48:56 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 19 Oct 2016 13:18:31 -0300

perf c2c report: Add 'iaddr' dimension key

It displays the code address (as hex number) responsible for the
accesses.

Using c2c wrapper to standard 'symbol_iaddr' object to define own header
and simple (just address) code address output.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Joe Mario <jmario@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-rhshygbst6kr75kju0muwt5x@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-c2c.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 01d541f..bb9d018 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -328,6 +328,27 @@ offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
return (int64_t)(r - l);
}

+static int
+iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ uint64_t addr = 0;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[20];
+
+ if (he->mem_info)
+ addr = he->mem_info->iaddr.addr;
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
+}
+
+static int64_t
+iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ return sort__iaddr_cmp(left, right);
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -379,9 +400,18 @@ static struct c2c_dimension dim_offset = {
.width = 18,
};

+static struct c2c_dimension dim_iaddr = {
+ .header = HEADER_LOW("Code address"),
+ .name = "iaddr",
+ .cmp = iaddr_cmp,
+ .entry = iaddr_entry,
+ .width = 18,
+};
+
static struct c2c_dimension *dimensions[] = {
&dim_dcacheline,
&dim_offset,
+ &dim_iaddr,
NULL,
};