diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-18 13:45:16 -0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-18 14:00:25 -0200 |
| commit | 3f7247e0725de9643ce5a02b082c81c617476fd5 (patch) | |
| tree | 4f30641721feb1349ea8e541678d8290e8cd91a5 /tools/perf | |
| parent | 2d5646c0d58697c63e1fe6f227165637ca04a6c4 (diff) | |
| download | linux-3f7247e0725de9643ce5a02b082c81c617476fd5.tar.bz2 | |
perf tui: Catch signals to exit gracefully
Resetting the terminal to a sane state.
Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-myu44ujofadcy3y6an2mk383@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/ui/setup.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tools/perf/util/ui/setup.c b/tools/perf/util/ui/setup.c index ee46d671db59..8b8a57b45560 100644 --- a/tools/perf/util/ui/setup.c +++ b/tools/perf/util/ui/setup.c @@ -7,6 +7,7 @@ #include "browser.h" #include "helpline.h" #include "ui.h" +#include "libslang.h" pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER; @@ -17,6 +18,21 @@ static void newt_suspend(void *d __used) newtResume(); } +static void ui__exit(void) +{ + SLtt_set_cursor_visibility(1); + SLsmg_refresh(); + SLsmg_reset_smg(); + SLang_reset_tty(); +} + +static void ui__signal(int sig) +{ + ui__exit(); + psignal(sig, "perf"); + exit(0); +} + void setup_browser(bool fallback_to_pager) { if (!isatty(1) || !use_browser || dump_trace) { @@ -32,6 +48,12 @@ void setup_browser(bool fallback_to_pager) newtSetSuspendCallback(newt_suspend, NULL); ui_helpline__init(); ui_browser__init(); + + signal(SIGSEGV, ui__signal); + signal(SIGFPE, ui__signal); + signal(SIGINT, ui__signal); + signal(SIGQUIT, ui__signal); + signal(SIGTERM, ui__signal); } void exit_browser(bool wait_for_ok) @@ -41,6 +63,6 @@ void exit_browser(bool wait_for_ok) char title[] = "Fatal Error", ok[] = "Ok"; newtWinMessage(title, ok, ui_helpline__last_msg); } - newtFinished(); + ui__exit(); } } |