[GIT PULL 0/6] perf/core improvements and fixes for 2.6.36

[GIT PULL 0/6] perf/core improvements and fixes for 2.6.36

[Arnaldo Carvalho de Melo]

Hi Ingo,

        Please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 perf/core

Regards,

- Arnaldo

Arnaldo Carvalho de Melo (4):
  perf ui: Introduce routine ui_browser__is_current_entry
  perf ui: Introduce ui_browser->seek to support multiple list structures
  perf ui: Separate showing the entries from running the browser
  perf ui: Move objdump_line specific stuff out of ui_browser

Gui Jianfeng (1):
  perf kvm: Get rid of unused guest_kallsyms

Tom Zanussi (1):
  perf scripts perl: Makefile fix

 tools/perf/Makefile         |    2 +-
 tools/perf/builtin-record.c |    9 --
 tools/perf/util/newt.c      |  185 +++++++++++++++++++++++++------------------
 3 files changed, 109 insertions(+), 87 deletions(-)

[PATCH 1/6] perf scripts perl: Makefile fix

[Arnaldo Carvalho de Melo]

From: Tom Zanussi <tzanussi@gmail.com>

Fix a typo introduced by recent Makefile changes, in f9af3a4.  Without it, Perl
scripting support won't get compiled in.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <1276836006.7762.15.camel@tropicana>
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6aa2fe3..17a3692 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -577,7 +577,7 @@ ifdef NO_LIBPERL
 else
 	PERL_EMBED_LDOPTS = `perl -MExtUtils::Embed -e ldopts 2>/dev/null`
 	PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
-	PERL_EMBED_FLAGS=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
+	FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 
 	ifneq ($(call try-cc,$(SOURCE_PERL_EMBED),$(FLAGS_PERL_EMBED)),y)
 		BASIC_CFLAGS += -DNO_LIBPERL
-- 
1.6.2.5

[PATCH 2/6] perf ui: Introduce routine ui_browser__is_current_entry

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Will be used in more places in the new tree widget.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/newt.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index cf182ca..1e774e7 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -270,6 +270,11 @@ struct ui_browser {
 	u32		nr_entries;
 };
 
+static bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row)
+{
+	return (self->first_visible_entry_idx + row) == self->index;
+}
+
 static void ui_browser__refresh_dimensions(struct ui_browser *self)
 {
 	int cols, rows;
@@ -286,8 +291,8 @@ static void ui_browser__refresh_dimensions(struct ui_browser *self)
 
 static void ui_browser__reset_index(struct ui_browser *self)
 {
-        self->index = self->first_visible_entry_idx = 0;
-        self->first_visible_entry = NULL;
+	self->index = self->first_visible_entry_idx = 0;
+	self->first_visible_entry = NULL;
 }
 
 static int objdump_line__show(struct objdump_line *self, struct list_head *head,
@@ -353,7 +358,7 @@ static int ui_browser__refresh_entries(struct ui_browser *self)
 	pos = list_entry(self->first_visible_entry, struct objdump_line, node);
 
 	list_for_each_entry_from(pos, head, node) {
-		bool current_entry = (self->first_visible_entry_idx + row) == self->index;
+		bool current_entry = ui_browser__is_current_entry(self, row);
 		SLsmg_gotorc(self->top + row, self->left);
 		objdump_line__show(pos, head, self->width,
 				   he, len, current_entry);
-- 
1.6.2.5

[PATCH 3/6] perf ui: Introduce ui_browser->seek to support multiple list structures

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

So that we can use the ui_browser on things like an rb_tree, etc.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/newt.c |   69 ++++++++++++++++++++++++++++++------------------
 1 files changed, 43 insertions(+), 26 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 1e774e7..0ffc828 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -267,9 +267,42 @@ struct ui_browser {
 	void		*first_visible_entry, *entries;
 	u16		top, left, width, height;
 	void		*priv;
+	void		(*seek)(struct ui_browser *self,
+				off_t offset, int whence);
 	u32		nr_entries;
 };
 
+static void ui_browser__list_head_seek(struct ui_browser *self,
+				       off_t offset, int whence)
+{
+	struct list_head *head = self->entries;
+	struct list_head *pos;
+
+	switch (whence) {
+	case SEEK_SET:
+		pos = head->next;
+		break;
+	case SEEK_CUR:
+		pos = self->first_visible_entry;
+		break;
+	case SEEK_END:
+		pos = head->prev;
+		break;
+	default:
+		return;
+	}
+
+	if (offset > 0) {
+		while (offset-- != 0)
+			pos = pos->next;
+	} else {
+		while (offset++ != 0)
+			pos = pos->prev;
+	}
+
+	self->first_visible_entry = pos;
+}
+
 static bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row)
 {
 	return (self->first_visible_entry_idx + row) == self->index;
@@ -292,7 +325,7 @@ static void ui_browser__refresh_dimensions(struct ui_browser *self)
 static void ui_browser__reset_index(struct ui_browser *self)
 {
 	self->index = self->first_visible_entry_idx = 0;
-	self->first_visible_entry = NULL;
+	self->seek(self, 0, SEEK_SET);
 }
 
 static int objdump_line__show(struct objdump_line *self, struct list_head *head,
@@ -408,7 +441,7 @@ static int ui_browser__run(struct ui_browser *self, const char *title,
 	newtFormAddComponent(self->form, self->sb);
 
 	while (1) {
-		unsigned int offset;
+		off_t offset;
 
 		newtFormRun(self->form, es);
 
@@ -422,9 +455,8 @@ static int ui_browser__run(struct ui_browser *self, const char *title,
 				break;
 			++self->index;
 			if (self->index == self->first_visible_entry_idx + self->height) {
-				struct list_head *pos = self->first_visible_entry;
 				++self->first_visible_entry_idx;
-				self->first_visible_entry = pos->next;
+				self->seek(self, +1, SEEK_CUR);
 			}
 			break;
 		case NEWT_KEY_UP:
@@ -432,9 +464,8 @@ static int ui_browser__run(struct ui_browser *self, const char *title,
 				break;
 			--self->index;
 			if (self->index < self->first_visible_entry_idx) {
-				struct list_head *pos = self->first_visible_entry;
 				--self->first_visible_entry_idx;
-				self->first_visible_entry = pos->prev;
+				self->seek(self, -1, SEEK_CUR);
 			}
 			break;
 		case NEWT_KEY_PGDN:
@@ -447,12 +478,7 @@ static int ui_browser__run(struct ui_browser *self, const char *title,
 				offset = self->nr_entries - 1 - self->index;
 			self->index += offset;
 			self->first_visible_entry_idx += offset;
-
-			while (offset--) {
-				struct list_head *pos = self->first_visible_entry;
-				self->first_visible_entry = pos->next;
-			}
-
+			self->seek(self, +offset, SEEK_CUR);
 			break;
 		case NEWT_KEY_PGUP:
 			if (self->first_visible_entry_idx == 0)
@@ -465,29 +491,19 @@ static int ui_browser__run(struct ui_browser *self, const char *title,
 
 			self->index -= offset;
 			self->first_visible_entry_idx -= offset;
-
-			while (offset--) {
-				struct list_head *pos = self->first_visible_entry;
-				self->first_visible_entry = pos->prev;
-			}
+			self->seek(self, -offset, SEEK_CUR);
 			break;
 		case NEWT_KEY_HOME:
 			ui_browser__reset_index(self);
 			break;
-		case NEWT_KEY_END: {
-			struct list_head *head = self->entries;
+		case NEWT_KEY_END:
 			offset = self->height - 1;
 
 			if (offset > self->nr_entries)
 				offset = self->nr_entries;
 
 			self->index = self->first_visible_entry_idx = self->nr_entries - 1 - offset;
-			self->first_visible_entry = head->prev;
-			while (offset-- != 0) {
-				struct list_head *pos = self->first_visible_entry;
-				self->first_visible_entry = pos->prev;
-			}
-		}
+			self->seek(self, -offset, SEEK_END);
 			break;
 		case NEWT_KEY_RIGHT:
 		case NEWT_KEY_LEFT:
@@ -706,7 +722,8 @@ int hist_entry__tui_annotate(struct hist_entry *self)
 	ui_helpline__push("Press <- or ESC to exit");
 
 	memset(&browser, 0, sizeof(browser));
-	browser.entries = &head;
+	browser.entries		= &head;
+	browser.seek		= ui_browser__list_head_seek;
 	browser.priv = self;
 	list_for_each_entry(pos, &head, node) {
 		size_t line_len = strlen(pos->line);
-- 
1.6.2.5

[PATCH 4/6] perf ui: Separate showing the entries from running the browser

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Another patch eroding the changes I had to move to a tree widget that
doesn't requires adding all entries in an existing list/tree structure
to a generic tree widget, but instead allows traversing just the entries
that should appear on the screen on a given moment.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/newt.c |   60 +++++++++++++++++++++++------------------------
 1 files changed, 29 insertions(+), 31 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 0ffc828..9fa5b20 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -328,6 +328,32 @@ static void ui_browser__reset_index(struct ui_browser *self)
 	self->seek(self, 0, SEEK_SET);
 }
 
+static int ui_browser__show(struct ui_browser *self, const char *title)
+{
+	if (self->form != NULL)
+		return 0;
+	ui_browser__refresh_dimensions(self);
+	newtCenteredWindow(self->width + 2, self->height, title);
+	self->form = newt_form__new();
+	if (self->form == NULL)
+		return -1;
+
+	self->sb = newtVerticalScrollbar(self->width + 1, 0, self->height,
+					 HE_COLORSET_NORMAL,
+					 HE_COLORSET_SELECTED);
+	if (self->sb == NULL)
+		return -1;
+
+	newtFormAddHotKey(self->form, NEWT_KEY_UP);
+	newtFormAddHotKey(self->form, NEWT_KEY_DOWN);
+	newtFormAddHotKey(self->form, NEWT_KEY_PGUP);
+	newtFormAddHotKey(self->form, NEWT_KEY_PGDN);
+	newtFormAddHotKey(self->form, NEWT_KEY_HOME);
+	newtFormAddHotKey(self->form, NEWT_KEY_END);
+	newtFormAddComponent(self->form, self->sb);
+	return 0;
+}
+
 static int objdump_line__show(struct objdump_line *self, struct list_head *head,
 			      int width, struct hist_entry *he, int len,
 			      bool current_entry)
@@ -406,39 +432,10 @@ static int ui_browser__refresh_entries(struct ui_browser *self)
 	return 0;
 }
 
-static int ui_browser__run(struct ui_browser *self, const char *title,
-			   struct newtExitStruct *es)
+static int ui_browser__run(struct ui_browser *self, struct newtExitStruct *es)
 {
-	if (self->form) {
-		newtFormDestroy(self->form);
-		newtPopWindow();
-	}
-
-	ui_browser__refresh_dimensions(self);
-	newtCenteredWindow(self->width + 2, self->height, title);
-	self->form = newt_form__new();
-	if (self->form == NULL)
-		return -1;
-
-	self->sb = newtVerticalScrollbar(self->width + 1, 0, self->height,
-					 HE_COLORSET_NORMAL,
-					 HE_COLORSET_SELECTED);
-	if (self->sb == NULL)
-		return -1;
-
-	newtFormAddHotKey(self->form, NEWT_KEY_UP);
-	newtFormAddHotKey(self->form, NEWT_KEY_DOWN);
-	newtFormAddHotKey(self->form, NEWT_KEY_PGUP);
-	newtFormAddHotKey(self->form, NEWT_KEY_PGDN);
-	newtFormAddHotKey(self->form, ' ');
-	newtFormAddHotKey(self->form, NEWT_KEY_HOME);
-	newtFormAddHotKey(self->form, NEWT_KEY_END);
-	newtFormAddHotKey(self->form, NEWT_KEY_TAB);
-	newtFormAddHotKey(self->form, NEWT_KEY_RIGHT);
-
 	if (ui_browser__refresh_entries(self) < 0)
 		return -1;
-	newtFormAddComponent(self->form, self->sb);
 
 	while (1) {
 		off_t offset;
@@ -733,7 +730,8 @@ int hist_entry__tui_annotate(struct hist_entry *self)
 	}
 
 	browser.width += 18; /* Percentage */
-	ret = ui_browser__run(&browser, self->ms.sym->name, &es);
+	ui_browser__show(&browser, self->ms.sym->name);
+	ui_browser__run(&browser, &es);
 	newtFormDestroy(browser.form);
 	newtPopWindow();
 	list_for_each_entry_safe(pos, n, &head, node) {
-- 
1.6.2.5

[PATCH 5/6] perf ui: Move objdump_line specific stuff out of ui_browser

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

By adding a ui_browser->refresh_entries() pure virtual member.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/newt.c |   49 +++++++++++++++++++++++++++++------------------
 1 files changed, 30 insertions(+), 19 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 9fa5b20..7bdbfd3 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -267,6 +267,7 @@ struct ui_browser {
 	void		*first_visible_entry, *entries;
 	u16		top, left, width, height;
 	void		*priv;
+	unsigned int	(*refresh_entries)(struct ui_browser *self);
 	void		(*seek)(struct ui_browser *self,
 				off_t offset, int whence);
 	u32		nr_entries;
@@ -405,26 +406,10 @@ static int objdump_line__show(struct objdump_line *self, struct list_head *head,
 
 static int ui_browser__refresh_entries(struct ui_browser *self)
 {
-	struct objdump_line *pos;
-	struct list_head *head = self->entries;
-	struct hist_entry *he = self->priv;
-	int row = 0;
-	int len = he->ms.sym->end - he->ms.sym->start;
-
-	if (self->first_visible_entry == NULL || self->first_visible_entry == self->entries)
-                self->first_visible_entry = head->next;
-
-	pos = list_entry(self->first_visible_entry, struct objdump_line, node);
-
-	list_for_each_entry_from(pos, head, node) {
-		bool current_entry = ui_browser__is_current_entry(self, row);
-		SLsmg_gotorc(self->top + row, self->left);
-		objdump_line__show(pos, head, self->width,
-				   he, len, current_entry);
-		if (++row == self->height)
-			break;
-	}
+	int row;
 
+	newtScrollbarSet(self->sb, self->index, self->nr_entries - 1);
+	row = self->refresh_entries(self);
 	SLsmg_set_color(HE_COLORSET_NORMAL);
 	SLsmg_fill_region(self->top + row, self->left,
 			  self->height - row, self->width, ' ');
@@ -557,6 +542,31 @@ static char *callchain_list__sym_name(struct callchain_list *self,
 	return bf;
 }
 
+static unsigned int hist_entry__annotate_browser_refresh(struct ui_browser *self)
+{
+	struct objdump_line *pos;
+	struct list_head *head = self->entries;
+	struct hist_entry *he = self->priv;
+	int row = 0;
+	int len = he->ms.sym->end - he->ms.sym->start;
+
+	if (self->first_visible_entry == NULL || self->first_visible_entry == self->entries)
+                self->first_visible_entry = head->next;
+
+	pos = list_entry(self->first_visible_entry, struct objdump_line, node);
+
+	list_for_each_entry_from(pos, head, node) {
+		bool current_entry = ui_browser__is_current_entry(self, row);
+		SLsmg_gotorc(self->top + row, self->left);
+		objdump_line__show(pos, head, self->width,
+				   he, len, current_entry);
+		if (++row == self->height)
+			break;
+	}
+
+	return row;
+}
+
 static void __callchain__append_graph_browser(struct callchain_node *self,
 					      newtComponent tree, u64 total,
 					      int *indexes, int depth)
@@ -720,6 +730,7 @@ int hist_entry__tui_annotate(struct hist_entry *self)
 
 	memset(&browser, 0, sizeof(browser));
 	browser.entries		= &head;
+	browser.refresh_entries = hist_entry__annotate_browser_refresh;
 	browser.seek		= ui_browser__list_head_seek;
 	browser.priv = self;
 	list_for_each_entry(pos, &head, node) {
-- 
1.6.2.5

[PATCH 6/6] perf kvm: Get rid of unused guest_kallsyms

[Arnaldo Carvalho de Melo]

From: Gui Jianfeng <guijianfeng@cn.fujitsu.com>

guest_kallsyms is redundant here, remove it.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Yanmin Zhang <yanmin_zhang@linux.intel.com>
LKML-Reference: <4C241140.9090008@cn.fujitsu.com>
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 86b1c3b..0df6408 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -445,8 +445,6 @@ static void atexit_header(void)
 static void event__synthesize_guest_os(struct machine *machine, void *data)
 {
 	int err;
-	char *guest_kallsyms;
-	char path[PATH_MAX];
 	struct perf_session *psession = data;
 
 	if (machine__is_host(machine))
@@ -466,13 +464,6 @@ static void event__synthesize_guest_os(struct machine *machine, void *data)
 		pr_err("Couldn't record guest kernel [%d]'s reference"
 		       " relocation symbol.\n", machine->pid);
 
-	if (machine__is_default_guest(machine))
-		guest_kallsyms = (char *) symbol_conf.default_guest_kallsyms;
-	else {
-		sprintf(path, "%s/proc/kallsyms", machine->root_dir);
-		guest_kallsyms = path;
-	}
-
 	/*
 	 * We use _stext for guest kernel because guest kernel's /proc/kallsyms
 	 * have no _text sometimes.
-- 
1.6.2.5

Re: [GIT PULL 0/6] perf/core improvements and fixes for 2.6.36

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
>         Please pull from:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 perf/core
> 
> Regards,
> 
> - Arnaldo
> 
> Arnaldo Carvalho de Melo (4):
>   perf ui: Introduce routine ui_browser__is_current_entry
>   perf ui: Introduce ui_browser->seek to support multiple list structures
>   perf ui: Separate showing the entries from running the browser
>   perf ui: Move objdump_line specific stuff out of ui_browser
> 
> Gui Jianfeng (1):
>   perf kvm: Get rid of unused guest_kallsyms
> 
> Tom Zanussi (1):
>   perf scripts perl: Makefile fix
> 
>  tools/perf/Makefile         |    2 +-
>  tools/perf/builtin-record.c |    9 --
>  tools/perf/util/newt.c      |  185 +++++++++++++++++++++++++------------------
>  3 files changed, 109 insertions(+), 87 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo