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[tip:perf/core] perf ui helpline: Provide a printf variant

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  [tip:perf/core] perf ui helpline: Provide a printf variant tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com> - 2016-12-02 11:40 +0100

#1534810 — [tip:perf/core] perf ui helpline: Provide a printf variant

Commit-ID:  9484b86e9cad903d3295d75c03961c3bdd1444a8
Gitweb:     http://git.kernel.org/tip/9484b86e9cad903d3295d75c03961c3bdd1444a8
Author:     Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Fri, 25 Nov 2016 15:48:25 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 25 Nov 2016 15:49:16 -0300

perf ui helpline: Provide a printf variant

To print some values, like in the annotation code with invalid jump
offsets.

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>
Link: http://lkml.kernel.org/n/tip-1vk0g5twas2ioswn1mmvnvwq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/helpline.c | 10 ++++++++++
 tools/perf/ui/helpline.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/tools/perf/ui/helpline.c b/tools/perf/ui/helpline.c
index 5b74a7e..379039a 100644
--- a/tools/perf/ui/helpline.c
+++ b/tools/perf/ui/helpline.c
@@ -72,3 +72,13 @@ int ui_helpline__vshow(const char *fmt, va_list ap)
 {
 	return helpline_fns->show(fmt, ap);
 }
+
+void ui_helpline__printf(const char *fmt, ...)
+{
+	va_list ap;
+
+	ui_helpline__pop();
+	va_start(ap, fmt);
+	ui_helpline__vpush(fmt, ap);
+	va_end(ap);
+}
diff --git a/tools/perf/ui/helpline.h b/tools/perf/ui/helpline.h
index 46181f4..d52d0a1 100644
--- a/tools/perf/ui/helpline.h
+++ b/tools/perf/ui/helpline.h
@@ -21,6 +21,7 @@ void ui_helpline__push(const char *msg);
 void ui_helpline__vpush(const char *fmt, va_list ap);
 void ui_helpline__fpush(const char *fmt, ...);
 void ui_helpline__puts(const char *msg);
+void ui_helpline__printf(const char *fmt, ...);
 int  ui_helpline__vshow(const char *fmt, va_list ap);
 
 extern char ui_helpline__current[512];

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