Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (121 commits)
  perf symbols: Increase symbol KSYM_NAME_LEN size
  perf hists browser: Refuse 'a' hotkey on non symbolic views
  perf ui browser: Use libslang to read keys
  perf tools: Fix tracing info recording
  perf hists browser: Elide DSO column when it is set to just one DSO, ditto for threads
  perf hists: Don't consider filtered entries when calculating column widths
  perf hists: Don't decay total_period for filtered entries
  perf hists browser: Honour symbol_conf.show_{nr_samples,total_period}
  perf hists browser: Do not exit on tab key with single event
  perf annotate browser: Don't change selection line when returning from callq
  perf tools: handle endianness of feature bitmap
  perf tools: Add prelink suggestion to dso update message
  perf script: Fix unknown feature comment
  perf hists browser: Apply the dso and thread filters when merging new batches
  perf hists: Move the dso and thread filters from hist_browser
  perf ui browser: Honour the xterm colors
  perf top tui: Give color hints just on the percentage, like on --stdio
  perf ui browser: Make the colors configurable and change the defaults
  perf tui: Remove unneeded call to newtCls on startup
  perf hists: Don't format the percentage on hist_entry__snprintf
  ...

Fix up conflicts in arch/x86/kernel/kprobes.c manually.

Ingo's tree did the insane "add volatile to const array", which just
doesn't make sense ("volatile const"?).  But we could remove the const
*and* make the array volatile to make doubly sure that gcc doesn't
optimize it away..

Also fix up kernel/trace/ring_buffer.c non-data-conflicts manually: the
reader_lock has been turned into a raw lock by the core locking merge,
and there was a new user of it introduced in this perf core merge.  Make
sure that new use also uses the raw accessor functions.

1 files changed, 36 insertions, 2 deletions

diff --git a/tools/perf/util/ui/setup.c b/tools/perf/util/ui/setup.c
index ee46d671db5..1e6ba06980c 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 +18,33 @@ static void newt_suspend(void *d __used)
 	newtResume();
 }
 
+static int ui__init(void)
+{
+	int err = SLkp_init();
+
+	if (err < 0)
+		goto out;
+
+	SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
+out:
+	return err;
+}
+
+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) {
@@ -28,10 +56,16 @@ void setup_browser(bool fallback_to_pager)
 
 	use_browser = 1;
 	newtInit();
-	newtCls();
+	ui__init();
 	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 +75,6 @@ void exit_browser(bool wait_for_ok)
 			char title[] = "Fatal Error", ok[] = "Ok";
 			newtWinMessage(title, ok, ui_helpline__last_msg);
 		}
-		newtFinished();
+		ui__exit();
 	}
 }