From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
Jin Yao <yao.jin@linux.intel.com>,
Namhyung Kim <namhyung@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/1] perf report/top TUI: Fix title line formatting
Date: Mon, 30 Mar 2020 12:43:14 -0300 [thread overview]
Message-ID: <20200330154314.GB4576@kernel.org> (raw)
Acks? :)
---
In d10ec006dcd7 ("perf hists browser: Allow passing an initial hotkey")
the hist_entry__title() call was cut'n'pasted to a function where the
'title' variable is a pointer, not an array, so the sizeof(title)
continues syntactically valid but ends up reducing the real size of the
buffer where to format the first line in the screen to 8 bytes, which
makes the formatting at the title at each refresh to produce just the
string "Samples ", duh, fix it by passing the size of the buffer.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Fixes: d10ec006dcd7 ("perf hists browser: Allow passing an initial hotkey")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/hists.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 95ac5e2ea949..487e54ef56a9 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -677,7 +677,7 @@ static int hist_browser__title(struct hist_browser *browser, char *bf, size_t si
return browser->title ? browser->title(browser, bf, size) : 0;
}
-static int hist_browser__handle_hotkey(struct hist_browser *browser, bool warn_lost_event, char *title, int key)
+static int hist_browser__handle_hotkey(struct hist_browser *browser, bool warn_lost_event, char *title, size_t size, int key)
{
switch (key) {
case K_TIMER: {
@@ -703,7 +703,7 @@ static int hist_browser__handle_hotkey(struct hist_browser *browser, bool warn_l
ui_browser__warn_lost_events(&browser->b);
}
- hist_browser__title(browser, title, sizeof(title));
+ hist_browser__title(browser, title, size);
ui_browser__show_title(&browser->b, title);
break;
}
@@ -764,13 +764,13 @@ int hist_browser__run(struct hist_browser *browser, const char *help,
if (ui_browser__show(&browser->b, title, "%s", help) < 0)
return -1;
- if (key && hist_browser__handle_hotkey(browser, warn_lost_event, title, key))
+ if (key && hist_browser__handle_hotkey(browser, warn_lost_event, title, sizeof(title), key))
goto out;
while (1) {
key = ui_browser__run(&browser->b, delay_secs);
- if (hist_browser__handle_hotkey(browser, warn_lost_event, title, key))
+ if (hist_browser__handle_hotkey(browser, warn_lost_event, title, sizeof(title), key))
break;
}
out:
--
2.25.1
next reply other threads:[~2020-03-30 15:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-30 15:43 Arnaldo Carvalho de Melo [this message]
2020-04-04 8:41 ` [tip: perf/urgent] perf report/top TUI: Fix title line formatting tip-bot2 for Arnaldo Carvalho de Melo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200330154314.GB4576@kernel.org \
--to=acme@redhat.com \
--cc=adrian.hunter@intel.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=namhyung@kernel.org \
--cc=yao.jin@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).