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Subject[PATCH 01/17] perf tools: Add ->cmp(), ->collapse() and ->sort() to perf_hpp_fmt
Date
Those function pointers will be used to sort report output based on
the selected fields. This is a preparation of later change.

Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/ui/hist.c | 39 +++++++++++++++++++++++++++++++++++----
tools/perf/util/hist.h | 3 +++
2 files changed, 38 insertions(+), 4 deletions(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 0912805c08f4..d4a4f2e7eb43 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -192,6 +192,14 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
hpp_entry_scnprintf, true); \
}

+#define __HPP_SORT_FN(_type, _field) \
+static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \
+{ \
+ s64 __a = he_get_##_field(a); \
+ s64 __b = he_get_##_field(b); \
+ return __a - __b; \
+}
+
#define __HPP_ENTRY_RAW_FN(_type, _field) \
static u64 he_get_raw_##_field(struct hist_entry *he) \
{ \
@@ -206,16 +214,27 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
hpp_entry_scnprintf, false); \
}

+#define __HPP_SORT_RAW_FN(_type, _field) \
+static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \
+{ \
+ s64 __a = he_get_raw_##_field(a); \
+ s64 __b = he_get_raw_##_field(b); \
+ return __a - __b; \
+}
+
+
#define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width) \
__HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \
__HPP_WIDTH_FN(_type, _min_width, _unit_width) \
__HPP_COLOR_PERCENT_FN(_type, _field) \
-__HPP_ENTRY_PERCENT_FN(_type, _field)
+__HPP_ENTRY_PERCENT_FN(_type, _field) \
+__HPP_SORT_FN(_type, _field)

#define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width) \
__HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \
__HPP_WIDTH_FN(_type, _min_width, _unit_width) \
-__HPP_ENTRY_RAW_FN(_type, _field)
+__HPP_ENTRY_RAW_FN(_type, _field) \
+__HPP_SORT_RAW_FN(_type, _field)


HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8)
@@ -227,19 +246,31 @@ HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8)
HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12)
HPP_RAW_FNS(period, "Period", period, 12, 12)

+static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused,
+ struct hist_entry *b __maybe_unused)
+{
+ return 0;
+}
+
#define HPP__COLOR_PRINT_FNS(_name) \
{ \
.header = hpp__header_ ## _name, \
.width = hpp__width_ ## _name, \
.color = hpp__color_ ## _name, \
- .entry = hpp__entry_ ## _name \
+ .entry = hpp__entry_ ## _name, \
+ .cmp = hpp__nop_cmp, \
+ .collapse = hpp__nop_cmp, \
+ .sort = hpp__sort_ ## _name, \
}

#define HPP__PRINT_FNS(_name) \
{ \
.header = hpp__header_ ## _name, \
.width = hpp__width_ ## _name, \
- .entry = hpp__entry_ ## _name \
+ .entry = hpp__entry_ ## _name, \
+ .cmp = hpp__nop_cmp, \
+ .collapse = hpp__nop_cmp, \
+ .sort = hpp__sort_ ## _name, \
}

struct perf_hpp_fmt perf_hpp__format[] = {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 5a0343eb22e2..9ef3b3a75f03 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -153,6 +153,9 @@ struct perf_hpp_fmt {
struct hist_entry *he);
int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he);
+ int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
+ int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
+ int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);

struct list_head list;
};
--
1.9.2


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