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Date: Mon, 23 Oct 2017 20:47:31 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Adrian Hunter <adrian.hunter@...el.com>,
David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Wang Nan <wangnan0@...wei.com>,
yuzhoujian <yuzhoujian@...ichuxing.com>
Subject: [PATCH 19/24] perf tools: Introduce binary__fprintf()
From: Arnaldo Carvalho de Melo <acme@...hat.com>
Out of print_binary() but receiving a fp pointer and expecting that the
printer be a fprintf like function, i.e. receive a FILE pointer and
return the number of characters printed.
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Cc: yuzhoujian <yuzhoujian@...ichuxing.com>
Link: http://lkml.kernel.org/n/tip-6oqnxr6lmgqe6q6p3iugnscx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-script.c | 32 +++++++++++++++++---------------
tools/perf/builtin-trace.c | 14 +++++++-------
tools/perf/util/debug.c | 31 +++++++++++++++++--------------
tools/perf/util/print_binary.c | 30 ++++++++++++++++--------------
tools/perf/util/print_binary.h | 18 +++++++++++++-----
5 files changed, 70 insertions(+), 55 deletions(-)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 7167df215a42..5a7dfc5691a1 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1164,40 +1164,40 @@ struct printer_data {
bool is_printable;
};
-static void
-print_sample_bpf_output_printer(enum binary_printer_ops op,
- unsigned int val,
- void *extra)
+static int sample__fprintf_bpf_output(enum binary_printer_ops op,
+ unsigned int val,
+ void *extra, FILE *fp)
{
unsigned char ch = (unsigned char)val;
struct printer_data *printer_data = extra;
+ int printed = 0;
switch (op) {
case BINARY_PRINT_DATA_BEGIN:
- printf("\n");
+ printed += fprintf(fp, "\n");
break;
case BINARY_PRINT_LINE_BEGIN:
- printf("%17s", !printer_data->line_no ? "BPF output:" :
+ printed += fprintf(fp, "%17s", !printer_data->line_no ? "BPF output:" :
" ");
break;
case BINARY_PRINT_ADDR:
- printf(" %04x:", val);
+ printed += fprintf(fp, " %04x:", val);
break;
case BINARY_PRINT_NUM_DATA:
- printf(" %02x", val);
+ printed += fprintf(fp, " %02x", val);
break;
case BINARY_PRINT_NUM_PAD:
- printf(" ");
+ printed += fprintf(fp, " ");
break;
case BINARY_PRINT_SEP:
- printf(" ");
+ printed += fprintf(fp, " ");
break;
case BINARY_PRINT_CHAR_DATA:
if (printer_data->hit_nul && ch)
printer_data->is_printable = false;
if (!isprint(ch)) {
- printf("%c", '.');
+ printed += fprintf(fp, "%c", '.');
if (!printer_data->is_printable)
break;
@@ -1207,20 +1207,22 @@ print_sample_bpf_output_printer(enum binary_printer_ops op,
else
printer_data->is_printable = false;
} else {
- printf("%c", ch);
+ printed += fprintf(fp, "%c", ch);
}
break;
case BINARY_PRINT_CHAR_PAD:
- printf(" ");
+ printed += fprintf(fp, " ");
break;
case BINARY_PRINT_LINE_END:
- printf("\n");
+ printed += fprintf(fp, "\n");
printer_data->line_no++;
break;
case BINARY_PRINT_DATA_END:
default:
break;
}
+
+ return printed;
}
static void print_sample_bpf_output(struct perf_sample *sample)
@@ -1229,7 +1231,7 @@ static void print_sample_bpf_output(struct perf_sample *sample)
struct printer_data printer_data = {0, false, true};
print_binary(sample->raw_data, nr_bytes, 8,
- print_sample_bpf_output_printer, &printer_data);
+ sample__fprintf_bpf_output, &printer_data);
if (printer_data.is_printable && printer_data.hit_nul)
printf("%17s \"%s\"\n", "BPF string:",
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index afef6fe46c45..8b23982dd9f2 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1828,16 +1828,14 @@ static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evs
goto out_put;
}
-static void bpf_output__printer(enum binary_printer_ops op,
- unsigned int val, void *extra)
+static int bpf_output__printer(enum binary_printer_ops op,
+ unsigned int val, void *extra __maybe_unused, FILE *fp)
{
- FILE *output = extra;
unsigned char ch = (unsigned char)val;
switch (op) {
case BINARY_PRINT_CHAR_DATA:
- fprintf(output, "%c", isprint(ch) ? ch : '.');
- break;
+ return fprintf(fp, "%c", isprint(ch) ? ch : '.');
case BINARY_PRINT_DATA_BEGIN:
case BINARY_PRINT_LINE_BEGIN:
case BINARY_PRINT_ADDR:
@@ -1850,13 +1848,15 @@ static void bpf_output__printer(enum binary_printer_ops op,
default:
break;
}
+
+ return 0;
}
static void bpf_output__fprintf(struct trace *trace,
struct perf_sample *sample)
{
- print_binary(sample->raw_data, sample->raw_size, 8,
- bpf_output__printer, trace->output);
+ binary__fprintf(sample->raw_data, sample->raw_size, 8,
+ bpf_output__printer, NULL, trace->output);
}
static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index a5b3777ffee6..cd24ebf0da2f 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -111,50 +111,53 @@ int dump_printf(const char *fmt, ...)
return ret;
}
-static void trace_event_printer(enum binary_printer_ops op,
- unsigned int val, void *extra)
+static int trace_event_printer(enum binary_printer_ops op,
+ unsigned int val, void *extra, FILE *fp)
{
const char *color = PERF_COLOR_BLUE;
union perf_event *event = (union perf_event *)extra;
unsigned char ch = (unsigned char)val;
+ int printed = 0;
switch (op) {
case BINARY_PRINT_DATA_BEGIN:
- printf(".");
- color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
- event->header.size);
+ printed += fprintf(fp, ".");
+ printed += color_fprintf(fp, color, "\n. ... raw event: size %d bytes\n",
+ event->header.size);
break;
case BINARY_PRINT_LINE_BEGIN:
- printf(".");
+ printed += fprintf(fp, ".");
break;
case BINARY_PRINT_ADDR:
- color_fprintf(stdout, color, " %04x: ", val);
+ printed += color_fprintf(fp, color, " %04x: ", val);
break;
case BINARY_PRINT_NUM_DATA:
- color_fprintf(stdout, color, " %02x", val);
+ printed += color_fprintf(fp, color, " %02x", val);
break;
case BINARY_PRINT_NUM_PAD:
- color_fprintf(stdout, color, " ");
+ printed += color_fprintf(fp, color, " ");
break;
case BINARY_PRINT_SEP:
- color_fprintf(stdout, color, " ");
+ printed += color_fprintf(fp, color, " ");
break;
case BINARY_PRINT_CHAR_DATA:
- color_fprintf(stdout, color, "%c",
+ printed += color_fprintf(fp, color, "%c",
isprint(ch) ? ch : '.');
break;
case BINARY_PRINT_CHAR_PAD:
- color_fprintf(stdout, color, " ");
+ printed += color_fprintf(fp, color, " ");
break;
case BINARY_PRINT_LINE_END:
- color_fprintf(stdout, color, "\n");
+ printed += color_fprintf(fp, color, "\n");
break;
case BINARY_PRINT_DATA_END:
- printf("\n");
+ printed += fprintf(fp, "\n");
break;
default:
break;
}
+
+ return printed;
}
void trace_event(union perf_event *event)
diff --git a/tools/perf/util/print_binary.c b/tools/perf/util/print_binary.c
index e908177b9976..df55ad3b47a0 100644
--- a/tools/perf/util/print_binary.c
+++ b/tools/perf/util/print_binary.c
@@ -2,40 +2,42 @@
#include <linux/log2.h>
#include "sane_ctype.h"
-void print_binary(unsigned char *data, size_t len,
- size_t bytes_per_line, print_binary_t printer,
- void *extra)
+int binary__fprintf(unsigned char *data, size_t len,
+ size_t bytes_per_line, binary__fprintf_t printer,
+ void *extra, FILE *fp)
{
size_t i, j, mask;
+ int printed = 0;
if (!printer)
- return;
+ return 0;
bytes_per_line = roundup_pow_of_two(bytes_per_line);
mask = bytes_per_line - 1;
- printer(BINARY_PRINT_DATA_BEGIN, 0, extra);
+ printed += printer(BINARY_PRINT_DATA_BEGIN, 0, extra, fp);
for (i = 0; i < len; i++) {
if ((i & mask) == 0) {
- printer(BINARY_PRINT_LINE_BEGIN, -1, extra);
- printer(BINARY_PRINT_ADDR, i, extra);
+ printed += printer(BINARY_PRINT_LINE_BEGIN, -1, extra, fp);
+ printed += printer(BINARY_PRINT_ADDR, i, extra, fp);
}
- printer(BINARY_PRINT_NUM_DATA, data[i], extra);
+ printed += printer(BINARY_PRINT_NUM_DATA, data[i], extra, fp);
if (((i & mask) == mask) || i == len - 1) {
for (j = 0; j < mask-(i & mask); j++)
- printer(BINARY_PRINT_NUM_PAD, -1, extra);
+ printed += printer(BINARY_PRINT_NUM_PAD, -1, extra, fp);
- printer(BINARY_PRINT_SEP, i, extra);
+ printer(BINARY_PRINT_SEP, i, extra, fp);
for (j = i & ~mask; j <= i; j++)
- printer(BINARY_PRINT_CHAR_DATA, data[j], extra);
+ printed += printer(BINARY_PRINT_CHAR_DATA, data[j], extra, fp);
for (j = 0; j < mask-(i & mask); j++)
- printer(BINARY_PRINT_CHAR_PAD, i, extra);
- printer(BINARY_PRINT_LINE_END, -1, extra);
+ printed += printer(BINARY_PRINT_CHAR_PAD, i, extra, fp);
+ printed += printer(BINARY_PRINT_LINE_END, -1, extra, fp);
}
}
- printer(BINARY_PRINT_DATA_END, -1, extra);
+ printed += printer(BINARY_PRINT_DATA_END, -1, extra, fp);
+ return printed;
}
int is_printable_array(char *p, unsigned int len)
diff --git a/tools/perf/util/print_binary.h b/tools/perf/util/print_binary.h
index da0427263d2d..f97918a179db 100644
--- a/tools/perf/util/print_binary.h
+++ b/tools/perf/util/print_binary.h
@@ -2,6 +2,7 @@
#define PERF_PRINT_BINARY_H
#include <stddef.h>
+#include <stdio.h>
enum binary_printer_ops {
BINARY_PRINT_DATA_BEGIN,
@@ -16,12 +17,19 @@ enum binary_printer_ops {
BINARY_PRINT_DATA_END,
};
-typedef void (*print_binary_t)(enum binary_printer_ops op,
- unsigned int val, void *extra);
+typedef int (*binary__fprintf_t)(enum binary_printer_ops op,
+ unsigned int val, void *extra, FILE *fp);
-void print_binary(unsigned char *data, size_t len,
- size_t bytes_per_line, print_binary_t printer,
- void *extra);
+int binary__fprintf(unsigned char *data, size_t len,
+ size_t bytes_per_line, binary__fprintf_t printer,
+ void *extra, FILE *fp);
+
+static inline void print_binary(unsigned char *data, size_t len,
+ size_t bytes_per_line, binary__fprintf_t printer,
+ void *extra)
+{
+ binary__fprintf(data, len, bytes_per_line, printer, extra, stdout);
+}
int is_printable_array(char *p, unsigned int len);
--
2.13.6
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