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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-perf-users@vger.kernel.org
Subject: [PATCH v5 06/12] perf annotate: Return printed number from disasm_line__write()
Date: Fri, 15 Aug 2025 20:16:29 -0700	[thread overview]
Message-ID: <20250816031635.25318-7-namhyung@kernel.org> (raw)
In-Reply-To: <20250816031635.25318-1-namhyung@kernel.org>

Like other print functions, make disasm_line__write() return the number
of printed characters.  It'll be used to skip unnecessary operations
when the screen is full.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/annotate.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 6389292ad8f95d89..698bc4f559e83043 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1743,7 +1743,7 @@ static double annotation_line__max_percent(struct annotation_line *al,
 	return percent_max;
 }
 
-static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
+static int disasm_line__write(struct disasm_line *dl, struct annotation *notes,
 			       void *obj, char *bf, size_t size,
 			       void (*obj__printf)(void *obj, const char *fmt, ...),
 			       void (*obj__write_graph)(void *obj, int graph))
@@ -1771,8 +1771,8 @@ static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
 		obj__printf(obj, "  ");
 	}
 
-	disasm_line__scnprintf(dl, bf, size, !annotate_opts.use_offset,
-			       notes->src->widths.max_ins_name);
+	return disasm_line__scnprintf(dl, bf, size, !annotate_opts.use_offset,
+				      notes->src->widths.max_ins_name) + 2;
 }
 
 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
-- 
2.50.1


  parent reply	other threads:[~2025-08-16  3:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-16  3:16 [PATCHSET v5 00/12] perf annotate: Support --code-with-type on TUI Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 01/12] perf annotate: Rename to __hist_entry__tui_annotate() Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 02/12] perf annotate: Remove annotation_print_data.start Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 03/12] perf annotate: Remove __annotation_line__write() Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 04/12] perf annotate: Pass annotation_print_data to annotation_line__write() Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 05/12] perf annotate: Simplify width calculation in annotation_line__write() Namhyung Kim
2025-08-16  3:16 ` Namhyung Kim [this message]
2025-08-16  3:16 ` [PATCH v5 07/12] perf annotate: Add --code-with-type support for TUI Namhyung Kim
2025-08-20 18:54   ` Arnaldo Carvalho de Melo
2025-08-20 23:38     ` Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 08/12] perf annotate: Add 'T' hot key to toggle data type display Namhyung Kim
2025-08-20 21:13   ` Arnaldo Carvalho de Melo
2025-08-20 23:43     ` Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 09/12] perf annotate: Show warning when debuginfo is not available Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 10/12] perf annotate: Hide data-type for stack operation and canary Namhyung Kim
2025-08-20 21:28   ` Arnaldo Carvalho de Melo
2025-08-20 21:30     ` Arnaldo Carvalho de Melo
2025-08-16  3:16 ` [PATCH v5 11/12] perf annotate: Add dso__debuginfo() helper Namhyung Kim
2025-08-16  3:16 ` [PATCH v5 12/12] perf annotate: Use a hashmap to save type data Namhyung Kim
2025-08-20 21:37   ` Arnaldo Carvalho de Melo
2025-08-20 23:46     ` Namhyung Kim
2025-08-20 21:40 ` [PATCHSET v5 00/12] perf annotate: Support --code-with-type on TUI Arnaldo Carvalho de Melo
2025-08-20 21:43   ` Arnaldo Carvalho de Melo
2025-08-20 23:47     ` Namhyung Kim

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