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perf script: Factor out perf_sample__sprintf_flags()

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Factor out perf_sample__sprintf_flags() so it can be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210525095112.1399-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2021-05-25 12:51:06 +03:00 committed by Arnaldo Carvalho de Melo
parent 3f8e009e01
commit 54cd8b0324
2 changed files with 21 additions and 10 deletions
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28
tools/perf/builtin-script.c
View file

@ -1553,41 +1553,49 @@ static const char *sample_flags_to_name(u32 flags)
return NULL;
}
static int perf_sample__fprintf_flags(u32 flags, FILE *fp)
int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz)
{
const char *chars = PERF_IP_FLAG_CHARS;
const int n = strlen(PERF_IP_FLAG_CHARS);
const size_t n = strlen(PERF_IP_FLAG_CHARS);
bool in_tx = flags & PERF_IP_FLAG_IN_TX;
const char *name = NULL;
char str[33];
int i, pos = 0;
size_t i, pos = 0;
name = sample_flags_to_name(flags & ~PERF_IP_FLAG_IN_TX);
if (name)
return fprintf(fp, " %-15s%4s ", name, in_tx ? "(x)" : "");
return snprintf(str, sz, "%-15s%4s", name, in_tx ? "(x)" : "");
if (flags & PERF_IP_FLAG_TRACE_BEGIN) {
name = sample_flags_to_name(flags & ~(PERF_IP_FLAG_IN_TX | PERF_IP_FLAG_TRACE_BEGIN));
if (name)
return fprintf(fp, " tr strt %-7s%4s ", name, in_tx ? "(x)" : "");
return snprintf(str, sz, "tr strt %-7s%4s", name, in_tx ? "(x)" : "");
}
if (flags & PERF_IP_FLAG_TRACE_END) {
name = sample_flags_to_name(flags & ~(PERF_IP_FLAG_IN_TX | PERF_IP_FLAG_TRACE_END));
if (name)
return fprintf(fp, " tr end %-7s%4s ", name, in_tx ? "(x)" : "");
return snprintf(str, sz, "tr end %-7s%4s", name, in_tx ? "(x)" : "");
}
for (i = 0; i < n; i++, flags >>= 1) {
if (flags & 1)
if ((flags & 1) && pos < sz)
str[pos++] = chars[i];
}
for (; i < 32; i++, flags >>= 1) {
if (flags & 1)
if ((flags & 1) && pos < sz)
str[pos++] = '?';
}
str[pos] = 0;
if (pos < sz)
str[pos] = 0;
return pos;
}
static int perf_sample__fprintf_flags(u32 flags, FILE *fp)
{
char str[SAMPLE_FLAGS_BUF_SIZE];
perf_sample__sprintf_flags(flags, str, sizeof(str));
return fprintf(fp, " %-19s ", str);
}

3
tools/perf/util/trace-event.h
View file

@ -105,4 +105,7 @@ int common_pc(struct scripting_context *context);
int common_flags(struct scripting_context *context);
int common_lock_depth(struct scripting_context *context);
#define SAMPLE_FLAGS_BUF_SIZE 64
int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz);
#endif /* _PERF_UTIL_TRACE_EVENT_H */