Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Fixes and improvements for perf/core:

. Overhaul the tools/ makefiles, gluing them to the top level Makefile, from
  Borislav Petkov.

. Move the UI files from tools/perf/util/ui/ to tools/perf/ui/. Also move
  the GTK+ browser to tools/perf/ui/gtk/, from Namhyung Kim.

. Only fallback to sw cycles counter on ENOENT for the hw cycles, from
  Robert Richter

. Trivial fixes from Robert Richter

. Handle the autogenerated bison/flex files better, from Namhyung and Jiri Olsa.

. Navigate jump instructions in the annotate browser, just press enter or ->,
  still needs support for a jump navigation history, i.e. to go back.

. Search string in the annotate browser: same keys as vim:
     / forward
     n next backward/forward
     ? backward

. Clarify number of events/samples in the report header, from Ashay Rane

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 155 insertions, 0 deletions

diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c
new file mode 100644
index 000000000000..85a69faa09aa
--- /dev/null
+++ b/tools/perf/ui/setup.c
@@ -0,0 +1,155 @@
+#include <newt.h>
+#include <signal.h>
+#include <stdbool.h>
+
+#include "../cache.h"
+#include "../debug.h"
+#include "browser.h"
+#include "helpline.h"
+#include "ui.h"
+#include "util.h"
+#include "libslang.h"
+#include "keysyms.h"
+
+pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
+
+static volatile int ui__need_resize;
+
+void ui__refresh_dimensions(bool force)
+{
+	if (force || ui__need_resize) {
+		ui__need_resize = 0;
+		pthread_mutex_lock(&ui__lock);
+		SLtt_get_screen_size();
+		SLsmg_reinit_smg();
+		pthread_mutex_unlock(&ui__lock);
+	}
+}
+
+static void ui__sigwinch(int sig __used)
+{
+	ui__need_resize = 1;
+}
+
+static void ui__setup_sigwinch(void)
+{
+	static bool done;
+
+	if (done)
+		return;
+
+	done = true;
+	pthread__unblock_sigwinch();
+	signal(SIGWINCH, ui__sigwinch);
+}
+
+int ui__getch(int delay_secs)
+{
+	struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
+	fd_set read_set;
+	int err, key;
+
+	ui__setup_sigwinch();
+
+	FD_ZERO(&read_set);
+	FD_SET(0, &read_set);
+
+	if (delay_secs) {
+		timeout.tv_sec = delay_secs;
+		timeout.tv_usec = 0;
+	}
+
+        err = select(1, &read_set, NULL, NULL, ptimeout);
+
+	if (err == 0)
+		return K_TIMER;
+
+	if (err == -1) {
+		if (errno == EINTR)
+			return K_RESIZE;
+		return K_ERROR;
+	}
+
+	key = SLang_getkey();
+	if (key != K_ESC)
+		return key;
+
+	FD_ZERO(&read_set);
+	FD_SET(0, &read_set);
+	timeout.tv_sec = 0;
+	timeout.tv_usec = 20;
+        err = select(1, &read_set, NULL, NULL, &timeout);
+	if (err == 0)
+		return K_ESC;
+
+	SLang_ungetkey(key);
+	return SLkp_getkey();
+}
+
+static void newt_suspend(void *d __used)
+{
+	newtSuspend();
+	raise(SIGTSTP);
+	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) {
+		use_browser = 0;
+		if (fallback_to_pager)
+			setup_pager();
+		return;
+	}
+
+	use_browser = 1;
+	newtInit();
+	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)
+{
+	if (use_browser > 0) {
+		if (wait_for_ok)
+			ui__question_window("Fatal Error",
+					    ui_helpline__last_msg,
+					    "Press any key...", 0);
+		ui__exit();
+	}
+}