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

Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Add branch type profiling/tracing support. (Jin Yao)

   - Add the PERF_SAMPLE_PHYS_ADDR ABI to allow the tracing/profiling of
     physical memory addresses, where the PMU supports it. (Kan Liang)

   - Export some PMU capability details in the new
     /sys/bus/event_source/devices/cpu/caps/ sysfs directory. (Andi
     Kleen)

   - Aux data fixes and updates (Will Deacon)

   - kprobes fixes and updates (Masami Hiramatsu)

   - AMD uncore PMU driver fixes and updates (Janakarajan Natarajan)

  On the tooling side, here's a (limited!) list of highlights - there
  were many other changes that I could not list, see the shortlog and
  git history for details:

  UI improvements:

   - Implement a visual marker for fused x86 instructions in the
     annotate TUI browser, available now in 'perf report', more work
     needed to have it available as well in 'perf top' (Jin Yao)

     Further explanation from one of Jin's patches:

             │   ┌──cmpl   $0x0,argp_program_version_hook
       81.93 │   ├──je     20
             │   │  lock   cmpxchg %esi,0x38a9a4(%rip)
             │   │↓ jne    29
             │   │↓ jmp    43
       11.47 │20:└─→cmpxch %esi,0x38a999(%rip)

     That means the cmpl+je is a fused instruction pair and they should
     be considered together.

   - Record the branch type and then show statistics and info about in
     callchain entries (Jin Yao)

     Example from one of Jin's patches:

        # perf record -g -j any,save_type
        # perf report --branch-history --stdio --no-children

        38.50%  div.c:45                [.] main                    div
                |
                ---main div.c:42 (RET CROSS_2M cycles:2)
                   compute_flag div.c:28 (cycles:2)
                   compute_flag div.c:27 (RET CROSS_2M cycles:1)
                   rand rand.c:28 (cycles:1)
                   rand rand.c:28 (RET CROSS_2M cycles:1)
                   __random random.c:298 (cycles:1)
                   __random random.c:297 (COND_BWD CROSS_2M cycles:1)
                   __random random.c:295 (cycles:1)
                   __random random.c:295 (COND_BWD CROSS_2M cycles:1)
                   __random random.c:295 (cycles:1)
                   __random random.c:295 (RET CROSS_2M cycles:9)

  namespaces support:

   - Add initial support for namespaces, using setns to access files in
     namespaces, grabbing their build-ids, etc. (Krister Johansen)

  perf trace enhancements:

   - Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Add initial 'clone' syscall args beautifier in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Beautifiers for the 'cmd' arg of several ioctl types, including:
     sound, DRM, KVM, vhost virtio and perf_events. (Arnaldo Carvalho de
     Melo)

   - Add PERF_SAMPLE_CALLCHAIN and PERF_RECORD_MMAP[2] to 'perf data'
     CTF conversion, allowing CTF trace visualization tools to show
     callchains and to resolve symbols (Geneviève Bastien)

   - Beautify the fcntl syscall, which is an interesting one in the
     sense that infrastructure had to be put in place to change the
     formatters of some arguments according to the value in a previous
     one, i.e. cmd dictates how arg and the syscall return will be
     formatted. (Arnaldo Carvalho de Melo

  perf stat enhancements:

   - Use group read for event groups in 'perf stat', reducing overhead
     when groups are defined in the event specification, i.e. when using
     {} to enclose a list of events, asking them to be read at the same
     time, e.g.: "perf stat -e '{cycles,instructions}'" (Jiri Olsa)

  pipe mode improvements:

   - Process tracing data in 'perf annotate' pipe mode (David
     Carrillo-Cisneros)

   - Add header record types to pipe-mode, now this command:

        $ perf record -o - -e cycles sleep 1 | perf report --stdio --header

     Will show the same as in non-pipe mode, i.e. involving a perf.data
     file (David Carrillo-Cisneros)

  Vendor specific hardware event support updates/enhancements:

   - Update POWER9 vendor events tables (Sukadev Bhattiprolu)

   - Add POWER9 PMU events Sukadev (Bhattiprolu)

   - Support additional POWER8+ PVR in PMU mapfile (Shriya)

   - Add Skylake server uncore JSON vendor events (Andi Kleen)

   - Support exporting Intel PT data to sqlite3 with python perf
     scripts, this is in addition to the postgresql support that was
     already there (Adrian Hunter)"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (253 commits)
  perf symbols: Fix plt entry calculation for ARM and AARCH64
  perf probe: Fix kprobe blacklist checking condition
  perf/x86: Fix caps/ for !Intel
  perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR
  perf/core, pt, bts: Get rid of itrace_started
  perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments
  tools headers: Sync cpu features kernel ABI headers with tooling headers
  perf tools: Pass full path of FEATURES_DUMP
  perf tools: Robustify detection of clang binary
  tools lib: Allow external definition of CC, AR and LD
  perf tools: Allow external definition of flex and bison binary names
  tools build tests: Don't hardcode gcc name
  perf report: Group stat values on global event id
  perf values: Zero value buffers
  perf values: Fix allocation check
  perf values: Fix thread index bug
  perf report: Add dump_read function
  perf record: Set read_format for inherit_stat
  perf c2c: Fix remote HITM detection for Skylake
  perf tools: Fix static build with newer toolchains
  ...

1 files changed, 70 insertions, 24 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 27f41f28dcb4..ba0aee576a2b 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -9,14 +9,16 @@
 #include "../../util/symbol.h"
 #include "../../util/evsel.h"
 #include "../../util/config.h"
+#include "../../util/evlist.h"
 #include <inttypes.h>
 #include <pthread.h>
 #include <linux/kernel.h>
+#include <linux/string.h>
 #include <sys/ttydefaults.h>
 
 struct disasm_line_samples {
-	double		percent;
-	u64		nr;
+	double		      percent;
+	struct sym_hist_entry he;
 };
 
 #define IPC_WIDTH 6
@@ -40,6 +42,7 @@ static struct annotate_browser_opt {
 	     jump_arrows,
 	     show_linenr,
 	     show_nr_jumps,
+	     show_nr_samples,
 	     show_total_period;
 } annotate_browser__opts = {
 	.use_offset	= true,
@@ -108,11 +111,12 @@ static int annotate_browser__set_jumps_percent_color(struct annotate_browser *br
 
 static int annotate_browser__pcnt_width(struct annotate_browser *ab)
 {
-	int w = 7 * ab->nr_events;
+	return (annotate_browser__opts.show_total_period ? 12 : 7) * ab->nr_events;
+}
 
-	if (ab->have_cycles)
-		w += IPC_WIDTH + CYCLES_WIDTH;
-	return w;
+static int annotate_browser__cycles_width(struct annotate_browser *ab)
+{
+	return ab->have_cycles ? IPC_WIDTH + CYCLES_WIDTH : 0;
 }
 
 static void annotate_browser__write(struct ui_browser *browser, void *entry, int row)
@@ -125,7 +129,8 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 			     (!current_entry || (browser->use_navkeypressed &&
 					         !browser->navkeypressed)));
 	int width = browser->width, printed;
-	int i, pcnt_width = annotate_browser__pcnt_width(ab);
+	int i, pcnt_width = annotate_browser__pcnt_width(ab),
+	       cycles_width = annotate_browser__cycles_width(ab);
 	double percent_max = 0.0;
 	char bf[256];
 	bool show_title = false;
@@ -149,8 +154,11 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 						bdl->samples[i].percent,
 						current_entry);
 			if (annotate_browser__opts.show_total_period) {
+				ui_browser__printf(browser, "%11" PRIu64 " ",
+						   bdl->samples[i].he.period);
+			} else if (annotate_browser__opts.show_nr_samples) {
 				ui_browser__printf(browser, "%6" PRIu64 " ",
-						   bdl->samples[i].nr);
+						   bdl->samples[i].he.nr_samples);
 			} else {
 				ui_browser__printf(browser, "%6.2f ",
 						   bdl->samples[i].percent);
@@ -160,9 +168,12 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 		ui_browser__set_percent_color(browser, 0, current_entry);
 
 		if (!show_title)
-			ui_browser__write_nstring(browser, " ", 7 * ab->nr_events);
-		else
-			ui_browser__printf(browser, "%*s", 7, "Percent");
+			ui_browser__write_nstring(browser, " ", pcnt_width);
+		else {
+			ui_browser__printf(browser, "%*s", pcnt_width,
+					   annotate_browser__opts.show_total_period ? "Period" :
+					   annotate_browser__opts.show_nr_samples ? "Samples" : "Percent");
+		}
 	}
 	if (ab->have_cycles) {
 		if (dl->ipc)
@@ -188,7 +199,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 		width += 1;
 
 	if (!*dl->line)
-		ui_browser__write_nstring(browser, " ", width - pcnt_width);
+		ui_browser__write_nstring(browser, " ", width - pcnt_width - cycles_width);
 	else if (dl->offset == -1) {
 		if (dl->line_nr && annotate_browser__opts.show_linenr)
 			printed = scnprintf(bf, sizeof(bf), "%-*d ",
@@ -197,7 +208,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 			printed = scnprintf(bf, sizeof(bf), "%*s  ",
 				    ab->addr_width, " ");
 		ui_browser__write_nstring(browser, bf, printed);
-		ui_browser__write_nstring(browser, dl->line, width - printed - pcnt_width + 1);
+		ui_browser__write_nstring(browser, dl->line, width - printed - pcnt_width - cycles_width + 1);
 	} else {
 		u64 addr = dl->offset;
 		int color = -1;
@@ -254,7 +265,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
 		}
 
 		disasm_line__scnprintf(dl, bf, sizeof(bf), !annotate_browser__opts.use_offset);
-		ui_browser__write_nstring(browser, bf, width - pcnt_width - 3 - printed);
+		ui_browser__write_nstring(browser, bf, width - pcnt_width - cycles_width - 3 - printed);
 	}
 
 	if (current_entry)
@@ -272,6 +283,25 @@ static bool disasm_line__is_valid_jump(struct disasm_line *dl, struct symbol *sy
 	return true;
 }
 
+static bool is_fused(struct annotate_browser *ab, struct disasm_line *cursor)
+{
+	struct disasm_line *pos = list_prev_entry(cursor, node);
+	const char *name;
+
+	if (!pos)
+		return false;
+
+	if (ins__is_lock(&pos->ins))
+		name = pos->ops.locked.ins.name;
+	else
+		name = pos->ins.name;
+
+	if (!name || !cursor->ins.name)
+		return false;
+
+	return ins__is_fused(ab->arch, name, cursor->ins.name);
+}
+
 static void annotate_browser__draw_current_jump(struct ui_browser *browser)
 {
 	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
@@ -307,6 +337,13 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
 	ui_browser__set_color(browser, HE_COLORSET_JUMP_ARROWS);
 	__ui_browser__line_arrow(browser, pcnt_width + 2 + ab->addr_width,
 				 from, to);
+
+	if (is_fused(ab, cursor)) {
+		ui_browser__mark_fused(browser,
+				       pcnt_width + 3 + ab->addr_width,
+				       from - 1,
+				       to > from ? true : false);
+	}
 }
 
 static unsigned int annotate_browser__refresh(struct ui_browser *browser)
@@ -422,14 +459,14 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
 		next = disasm__get_next_ip_line(&notes->src->source, pos);
 
 		for (i = 0; i < browser->nr_events; i++) {
-			u64 nr_samples;
+			struct sym_hist_entry sample;
 
 			bpos->samples[i].percent = disasm__calc_percent(notes,
 						evsel->idx + i,
 						pos->offset,
 						next ? next->offset : len,
-						&path, &nr_samples);
-			bpos->samples[i].nr = nr_samples;
+						&path, &sample);
+			bpos->samples[i].he = sample;
 
 			if (max_percent < bpos->samples[i].percent)
 				max_percent = bpos->samples[i].percent;
@@ -798,7 +835,7 @@ static int annotate_browser__run(struct annotate_browser *browser,
 		"n             Search next string\n"
 		"o             Toggle disassembler output/simplified view\n"
 		"s             Toggle source code view\n"
-		"t             Toggle total period view\n"
+		"t             Circulate percent, total period, samples view\n"
 		"/             Search string\n"
 		"k             Toggle line numbers\n"
 		"r             Run available scripts\n"
@@ -875,8 +912,13 @@ show_sup_ins:
 			}
 			continue;
 		case 't':
-			annotate_browser__opts.show_total_period =
-			  !annotate_browser__opts.show_total_period;
+			if (annotate_browser__opts.show_total_period) {
+				annotate_browser__opts.show_total_period = false;
+				annotate_browser__opts.show_nr_samples = true;
+			} else if (annotate_browser__opts.show_nr_samples)
+				annotate_browser__opts.show_nr_samples = false;
+			else
+				annotate_browser__opts.show_total_period = true;
 			annotate_browser__update_addr_width(browser);
 			continue;
 		case K_LEFT:
@@ -899,9 +941,11 @@ out:
 int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
 			     struct hist_browser_timer *hbt)
 {
-	/* Set default value for show_total_period.  */
+	/* Set default value for show_total_period and show_nr_samples  */
 	annotate_browser__opts.show_total_period =
-	  symbol_conf.show_total_period;
+		symbol_conf.show_total_period;
+	annotate_browser__opts.show_nr_samples =
+		symbol_conf.show_nr_samples;
 
 	return symbol__tui_annotate(ms->sym, ms->map, evsel, hbt);
 }
@@ -1074,7 +1118,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 	}
 
 	err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
-				  sizeof_bdl, &browser.arch);
+				  sizeof_bdl, &browser.arch,
+				  perf_evsel__env_cpuid(evsel));
 	if (err) {
 		char msg[BUFSIZ];
 		symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
@@ -1151,6 +1196,7 @@ static struct annotate_config {
 	ANNOTATE_CFG(jump_arrows),
 	ANNOTATE_CFG(show_linenr),
 	ANNOTATE_CFG(show_nr_jumps),
+	ANNOTATE_CFG(show_nr_samples),
 	ANNOTATE_CFG(show_total_period),
 	ANNOTATE_CFG(use_offset),
 };
@@ -1170,7 +1216,7 @@ static int annotate__config(const char *var, const char *value,
 	struct annotate_config *cfg;
 	const char *name;
 
-	if (prefixcmp(var, "annotate.") != 0)
+	if (!strstarts(var, "annotate."))
 		return 0;
 
 	name = var + 9;