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perf tools: Introduce binary__fprintf()

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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@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: yuzhoujian <yuzhoujian@didichuxing.com>
Link: http://lkml.kernel.org/n/tip-6oqnxr6lmgqe6q6p3iugnscx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-10-17 10:35:00 -03:00
parent 7958e54149
commit 923d0c9ae5
5 changed files with 70 additions and 55 deletions
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32
tools/perf/builtin-script.c
View file

@ -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:",