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From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Jiri Olsa <jolsa@redhat.com>, Andi Kleen <ak@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 04/10] perf script: Factor out perf_sample__sprintf_flags()
Date: Tue, 25 May 2021 12:51:06 +0300	[thread overview]
Message-ID: <20210525095112.1399-5-adrian.hunter@intel.com> (raw)
In-Reply-To: <20210525095112.1399-1-adrian.hunter@intel.com>

Factor out perf_sample__sprintf_flags() so it can be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 tools/perf/builtin-script.c   | 28 ++++++++++++++++++----------
 tools/perf/util/trace-event.h |  3 +++
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index f502d1c8a353..69bce65ea430 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -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);
 }
 
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 24694463c0be..7276674e2971 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -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 */
-- 
2.17.1


  parent reply	other threads:[~2021-05-25  9:51 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25  9:51 [PATCH 00/10] perf scripting python: Improve general scripting for Intel PT Adrian Hunter
2021-05-25  9:51 ` [PATCH 01/10] perf scripting python: Fix tuple_set_u64() Adrian Hunter
2021-05-25  9:51 ` [PATCH 02/10] perf scripting python: Factor out set_sym_in_dict() Adrian Hunter
2021-05-25  9:51 ` [PATCH 03/10] perf scripting python: Add 'addr_location' for 'addr' Adrian Hunter
2021-05-25  9:51 ` Adrian Hunter [this message]
2021-05-25  9:51 ` [PATCH 05/10] perf scripting python: Add sample flags Adrian Hunter
2021-05-25  9:51 ` [PATCH 06/10] perf scripting python: Add IPC Adrian Hunter
2021-05-25  9:51 ` [PATCH 07/10] perf scripting python: Add cpumode Adrian Hunter
2021-05-25  9:51 ` [PATCH 08/10] perf scripting python: Add context switch Adrian Hunter
2021-05-25  9:51 ` [PATCH 09/10] perf scripting python: Add auxtrace error Adrian Hunter
2021-05-25 13:03   ` Arnaldo Carvalho de Melo
2021-05-25 18:30     ` Adrian Hunter
2021-05-25 19:54       ` Arnaldo Carvalho de Melo
2021-05-25  9:51 ` [PATCH 10/10] perf scripts python: intel-pt-events.py: Add branches to script Adrian Hunter
2021-05-25 12:58 ` [PATCH 00/10] perf scripting python: Improve general scripting for Intel PT Arnaldo Carvalho de Melo

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