| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1281471339-10878-8-git-send-email-acme@infradead.org>
Date: Tue, 10 Aug 2010 17:15:37 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 7/9] perf ui: Move hists browser to util/ui/browsers/
From: Arnaldo Carvalho de Melo <acme@...hat.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/Makefile | 4 +
tools/perf/util/newt.c | 965 +----------------------------------
tools/perf/util/pstack.h | 2 +
tools/perf/util/ui/browsers/hists.c | 950 ++++++++++++++++++++++++++++++++++
4 files changed, 967 insertions(+), 954 deletions(-)
create mode 100644 tools/perf/util/ui/browsers/hists.c
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index d118020..62e4d6f 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -570,6 +570,7 @@ else
LIB_OBJS += $(OUTPUT)util/newt.o
LIB_OBJS += $(OUTPUT)util/ui/browser.o
LIB_OBJS += $(OUTPUT)util/ui/browsers/annotate.o
+ LIB_OBJS += $(OUTPUT)util/ui/browsers/hists.o
LIB_OBJS += $(OUTPUT)util/ui/browsers/map.o
LIB_OBJS += $(OUTPUT)util/ui/helpline.o
LIB_OBJS += $(OUTPUT)util/ui/progress.o
@@ -984,6 +985,9 @@ $(OUTPUT)util/ui/browser.o: util/ui/browser.c $(OUTPUT)PERF-CFLAGS
$(OUTPUT)util/ui/browsers/annotate.o: util/ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+$(OUTPUT)util/ui/browsers/hists.o: util/ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
+ $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
$(OUTPUT)util/ui/browsers/map.o: util/ui/browsers/map.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index b596926..6bccdaa 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -1,24 +1,19 @@
-#define _GNU_SOURCE
-#include <stdio.h>
-#undef _GNU_SOURCE
-#include "ui/libslang.h"
-#include <signal.h>
-#include <stdlib.h>
-#include <elf.h>
#include <newt.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
#include <sys/ttydefaults.h>
#include "cache.h"
-#include "hist.h"
-#include "pstack.h"
-#include "session.h"
-#include "sort.h"
-#include "symbol.h"
+#include "debug.h"
#include "ui/browser.h"
#include "ui/helpline.h"
-#include "ui/browsers/map.h"
newtComponent newt_form__new(void);
+int popup_menu(int argc, char * const argv[]);
+int ui__help_window(const char *text);
+bool dialog_yesno(const char *msg);
char browser__last_msg[1024];
@@ -57,7 +52,7 @@ newtComponent newt_form__new(void)
return self;
}
-static int popup_menu(int argc, char * const argv[])
+int popup_menu(int argc, char * const argv[])
{
struct newtExitStruct es;
int i, rc = -1, max_len = 5;
@@ -91,7 +86,7 @@ out_destroy_form:
return rc;
}
-static int ui__help_window(const char *text)
+int ui__help_window(const char *text)
{
struct newtExitStruct es;
newtComponent tb, form = newt_form__new();
@@ -133,316 +128,13 @@ out_destroy_form:
return rc;
}
-static bool dialog_yesno(const char *msg)
+bool dialog_yesno(const char *msg)
{
/* newtWinChoice should really be accepting const char pointers... */
char yes[] = "Yes", no[] = "No";
return newtWinChoice(NULL, yes, no, (char *)msg) == 1;
}
-static char *callchain_list__sym_name(struct callchain_list *self,
- char *bf, size_t bfsize)
-{
- if (self->ms.sym)
- return self->ms.sym->name;
-
- snprintf(bf, bfsize, "%#Lx", self->ip);
- return bf;
-}
-
-struct hist_browser {
- struct ui_browser b;
- struct hists *hists;
- struct hist_entry *he_selection;
- struct map_symbol *selection;
-};
-
-static void hist_browser__reset(struct hist_browser *self);
-static int hist_browser__run(struct hist_browser *self, const char *title,
- struct newtExitStruct *es);
-static unsigned int hist_browser__refresh(struct ui_browser *self);
-static void ui_browser__hists_seek(struct ui_browser *self,
- off_t offset, int whence);
-
-static struct hist_browser *hist_browser__new(struct hists *hists)
-{
- struct hist_browser *self = zalloc(sizeof(*self));
-
- if (self) {
- self->hists = hists;
- self->b.refresh = hist_browser__refresh;
- self->b.seek = ui_browser__hists_seek;
- }
-
- return self;
-}
-
-static void hist_browser__delete(struct hist_browser *self)
-{
- newtFormDestroy(self->b.form);
- newtPopWindow();
- free(self);
-}
-
-static struct hist_entry *hist_browser__selected_entry(struct hist_browser *self)
-{
- return self->he_selection;
-}
-
-static struct thread *hist_browser__selected_thread(struct hist_browser *self)
-{
- return self->he_selection->thread;
-}
-
-static int hist_browser__title(char *bf, size_t size, const char *ev_name,
- const struct dso *dso, const struct thread *thread)
-{
- int printed = 0;
-
- if (thread)
- printed += snprintf(bf + printed, size - printed,
- "Thread: %s(%d)",
- (thread->comm_set ? thread->comm : ""),
- thread->pid);
- if (dso)
- printed += snprintf(bf + printed, size - printed,
- "%sDSO: %s", thread ? " " : "",
- dso->short_name);
- return printed ?: snprintf(bf, size, "Event: %s", ev_name);
-}
-
-int hists__browse(struct hists *self, const char *helpline, const char *ev_name)
-{
- struct hist_browser *browser = hist_browser__new(self);
- struct pstack *fstack;
- const struct thread *thread_filter = NULL;
- const struct dso *dso_filter = NULL;
- struct newtExitStruct es;
- char msg[160];
- int key = -1;
-
- if (browser == NULL)
- return -1;
-
- fstack = pstack__new(2);
- if (fstack == NULL)
- goto out;
-
- ui_helpline__push(helpline);
-
- hist_browser__title(msg, sizeof(msg), ev_name,
- dso_filter, thread_filter);
-
- while (1) {
- const struct thread *thread;
- const struct dso *dso;
- char *options[16];
- int nr_options = 0, choice = 0, i,
- annotate = -2, zoom_dso = -2, zoom_thread = -2,
- browse_map = -2;
-
- if (hist_browser__run(browser, msg, &es))
- break;
-
- thread = hist_browser__selected_thread(browser);
- dso = browser->selection->map ? browser->selection->map->dso : NULL;
-
- if (es.reason == NEWT_EXIT_HOTKEY) {
- key = es.u.key;
-
- switch (key) {
- case NEWT_KEY_F1:
- goto do_help;
- case NEWT_KEY_TAB:
- case NEWT_KEY_UNTAB:
- /*
- * Exit the browser, let hists__browser_tree
- * go to the next or previous
- */
- goto out_free_stack;
- default:;
- }
-
- key = toupper(key);
- switch (key) {
- case 'A':
- if (browser->selection->map == NULL &&
- browser->selection->map->dso->annotate_warned)
- continue;
- goto do_annotate;
- case 'D':
- goto zoom_dso;
- case 'T':
- goto zoom_thread;
- case 'H':
- case '?':
-do_help:
- ui__help_window("-> Zoom into DSO/Threads & Annotate current symbol\n"
- "<- Zoom out\n"
- "a Annotate current symbol\n"
- "h/?/F1 Show this window\n"
- "d Zoom into current DSO\n"
- "t Zoom into current Thread\n"
- "q/CTRL+C Exit browser");
- continue;
- default:;
- }
- if (is_exit_key(key)) {
- if (key == NEWT_KEY_ESCAPE) {
- if (dialog_yesno("Do you really want to exit?"))
- break;
- else
- continue;
- } else
- break;
- }
-
- if (es.u.key == NEWT_KEY_LEFT) {
- const void *top;
-
- if (pstack__empty(fstack))
- continue;
- top = pstack__pop(fstack);
- if (top == &dso_filter)
- goto zoom_out_dso;
- if (top == &thread_filter)
- goto zoom_out_thread;
- continue;
- }
- }
-
- if (browser->selection->sym != NULL &&
- !browser->selection->map->dso->annotate_warned &&
- asprintf(&options[nr_options], "Annotate %s",
- browser->selection->sym->name) > 0)
- annotate = nr_options++;
-
- if (thread != NULL &&
- asprintf(&options[nr_options], "Zoom %s %s(%d) thread",
- (thread_filter ? "out of" : "into"),
- (thread->comm_set ? thread->comm : ""),
- thread->pid) > 0)
- zoom_thread = nr_options++;
-
- if (dso != NULL &&
- asprintf(&options[nr_options], "Zoom %s %s DSO",
- (dso_filter ? "out of" : "into"),
- (dso->kernel ? "the Kernel" : dso->short_name)) > 0)
- zoom_dso = nr_options++;
-
- if (browser->selection->map != NULL &&
- asprintf(&options[nr_options], "Browse map details") > 0)
- browse_map = nr_options++;
-
- options[nr_options++] = (char *)"Exit";
-
- choice = popup_menu(nr_options, options);
-
- for (i = 0; i < nr_options - 1; ++i)
- free(options[i]);
-
- if (choice == nr_options - 1)
- break;
-
- if (choice == -1)
- continue;
-
- if (choice == annotate) {
- struct hist_entry *he;
-do_annotate:
- if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) {
- browser->selection->map->dso->annotate_warned = 1;
- ui_helpline__puts("No vmlinux file found, can't "
- "annotate with just a "
- "kallsyms file");
- continue;
- }
-
- he = hist_browser__selected_entry(browser);
- if (he == NULL)
- continue;
-
- hist_entry__tui_annotate(he);
- } else if (choice == browse_map)
- map__browse(browser->selection->map);
- else if (choice == zoom_dso) {
-zoom_dso:
- if (dso_filter) {
- pstack__remove(fstack, &dso_filter);
-zoom_out_dso:
- ui_helpline__pop();
- dso_filter = NULL;
- } else {
- if (dso == NULL)
- continue;
- ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
- dso->kernel ? "the Kernel" : dso->short_name);
- dso_filter = dso;
- pstack__push(fstack, &dso_filter);
- }
- hists__filter_by_dso(self, dso_filter);
- hist_browser__title(msg, sizeof(msg), ev_name,
- dso_filter, thread_filter);
- hist_browser__reset(browser);
- } else if (choice == zoom_thread) {
-zoom_thread:
- if (thread_filter) {
- pstack__remove(fstack, &thread_filter);
-zoom_out_thread:
- ui_helpline__pop();
- thread_filter = NULL;
- } else {
- ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
- thread->comm_set ? thread->comm : "",
- thread->pid);
- thread_filter = thread;
- pstack__push(fstack, &thread_filter);
- }
- hists__filter_by_thread(self, thread_filter);
- hist_browser__title(msg, sizeof(msg), ev_name,
- dso_filter, thread_filter);
- hist_browser__reset(browser);
- }
- }
-out_free_stack:
- pstack__delete(fstack);
-out:
- hist_browser__delete(browser);
- return key;
-}
-
-int hists__tui_browse_tree(struct rb_root *self, const char *help)
-{
- struct rb_node *first = rb_first(self), *nd = first, *next;
- int key = 0;
-
- while (nd) {
- struct hists *hists = rb_entry(nd, struct hists, rb_node);
- const char *ev_name = __event_name(hists->type, hists->config);
-
- key = hists__browse(hists, help, ev_name);
-
- if (is_exit_key(key))
- break;
-
- switch (key) {
- case NEWT_KEY_TAB:
- next = rb_next(nd);
- if (next)
- nd = next;
- break;
- case NEWT_KEY_UNTAB:
- if (nd == first)
- continue;
- nd = rb_prev(nd);
- default:
- break;
- }
- }
-
- return key;
-}
-
static void newt_suspend(void *d __used)
{
newtSuspend();
@@ -476,638 +168,3 @@ void exit_browser(bool wait_for_ok)
newtFinished();
}
}
-
-static void hist_browser__refresh_dimensions(struct hist_browser *self)
-{
- /* 3 == +/- toggle symbol before actual hist_entry rendering */
- self->b.width = 3 + (hists__sort_list_width(self->hists) +
- sizeof("[k]"));
-}
-
-static void hist_browser__reset(struct hist_browser *self)
-{
- self->b.nr_entries = self->hists->nr_entries;
- hist_browser__refresh_dimensions(self);
- ui_browser__reset_index(&self->b);
-}
-
-static char tree__folded_sign(bool unfolded)
-{
- return unfolded ? '-' : '+';
-}
-
-static char map_symbol__folded(const struct map_symbol *self)
-{
- return self->has_children ? tree__folded_sign(self->unfolded) : ' ';
-}
-
-static char hist_entry__folded(const struct hist_entry *self)
-{
- return map_symbol__folded(&self->ms);
-}
-
-static char callchain_list__folded(const struct callchain_list *self)
-{
- return map_symbol__folded(&self->ms);
-}
-
-static bool map_symbol__toggle_fold(struct map_symbol *self)
-{
- if (!self->has_children)
- return false;
-
- self->unfolded = !self->unfolded;
- return true;
-}
-
-#define LEVEL_OFFSET_STEP 3
-
-static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *self,
- struct callchain_node *chain_node,
- u64 total, int level,
- unsigned short row,
- off_t *row_offset,
- bool *is_current_entry)
-{
- struct rb_node *node;
- int first_row = row, width, offset = level * LEVEL_OFFSET_STEP;
- u64 new_total, remaining;
-
- if (callchain_param.mode == CHAIN_GRAPH_REL)
- new_total = chain_node->children_hit;
- else
- new_total = total;
-
- remaining = new_total;
- node = rb_first(&chain_node->rb_root);
- while (node) {
- struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
- struct rb_node *next = rb_next(node);
- u64 cumul = cumul_hits(child);
- struct callchain_list *chain;
- char folded_sign = ' ';
- int first = true;
- int extra_offset = 0;
-
- remaining -= cumul;
-
- list_for_each_entry(chain, &child->val, list) {
- char ipstr[BITS_PER_LONG / 4 + 1], *alloc_str;
- const char *str;
- int color;
- bool was_first = first;
-
- if (first) {
- first = false;
- chain->ms.has_children = chain->list.next != &child->val ||
- rb_first(&child->rb_root) != NULL;
- } else {
- extra_offset = LEVEL_OFFSET_STEP;
- chain->ms.has_children = chain->list.next == &child->val &&
- rb_first(&child->rb_root) != NULL;
- }
-
- folded_sign = callchain_list__folded(chain);
- if (*row_offset != 0) {
- --*row_offset;
- goto do_next;
- }
-
- alloc_str = NULL;
- str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
- if (was_first) {
- double percent = cumul * 100.0 / new_total;
-
- if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
- str = "Not enough memory!";
- else
- str = alloc_str;
- }
-
- color = HE_COLORSET_NORMAL;
- width = self->b.width - (offset + extra_offset + 2);
- if (ui_browser__is_current_entry(&self->b, row)) {
- self->selection = &chain->ms;
- color = HE_COLORSET_SELECTED;
- *is_current_entry = true;
- }
-
- SLsmg_set_color(color);
- SLsmg_gotorc(self->b.y + row, self->b.x);
- slsmg_write_nstring(" ", offset + extra_offset);
- slsmg_printf("%c ", folded_sign);
- slsmg_write_nstring(str, width);
- free(alloc_str);
-
- if (++row == self->b.height)
- goto out;
-do_next:
- if (folded_sign == '+')
- break;
- }
-
- if (folded_sign == '-') {
- const int new_level = level + (extra_offset ? 2 : 1);
- row += hist_browser__show_callchain_node_rb_tree(self, child, new_total,
- new_level, row, row_offset,
- is_current_entry);
- }
- if (row == self->b.height)
- goto out;
- node = next;
- }
-out:
- return row - first_row;
-}
-
-static int hist_browser__show_callchain_node(struct hist_browser *self,
- struct callchain_node *node,
- int level, unsigned short row,
- off_t *row_offset,
- bool *is_current_entry)
-{
- struct callchain_list *chain;
- int first_row = row,
- offset = level * LEVEL_OFFSET_STEP,
- width = self->b.width - offset;
- char folded_sign = ' ';
-
- list_for_each_entry(chain, &node->val, list) {
- char ipstr[BITS_PER_LONG / 4 + 1], *s;
- int color;
- /*
- * FIXME: This should be moved to somewhere else,
- * probably when the callchain is created, so as not to
- * traverse it all over again
- */
- chain->ms.has_children = rb_first(&node->rb_root) != NULL;
- folded_sign = callchain_list__folded(chain);
-
- if (*row_offset != 0) {
- --*row_offset;
- continue;
- }
-
- color = HE_COLORSET_NORMAL;
- if (ui_browser__is_current_entry(&self->b, row)) {
- self->selection = &chain->ms;
- color = HE_COLORSET_SELECTED;
- *is_current_entry = true;
- }
-
- s = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
- SLsmg_gotorc(self->b.y + row, self->b.x);
- SLsmg_set_color(color);
- slsmg_write_nstring(" ", offset);
- slsmg_printf("%c ", folded_sign);
- slsmg_write_nstring(s, width - 2);
-
- if (++row == self->b.height)
- goto out;
- }
-
- if (folded_sign == '-')
- row += hist_browser__show_callchain_node_rb_tree(self, node,
- self->hists->stats.total_period,
- level + 1, row,
- row_offset,
- is_current_entry);
-out:
- return row - first_row;
-}
-
-static int hist_browser__show_callchain(struct hist_browser *self,
- struct rb_root *chain,
- int level, unsigned short row,
- off_t *row_offset,
- bool *is_current_entry)
-{
- struct rb_node *nd;
- int first_row = row;
-
- for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
- struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
-
- row += hist_browser__show_callchain_node(self, node, level,
- row, row_offset,
- is_current_entry);
- if (row == self->b.height)
- break;
- }
-
- return row - first_row;
-}
-
-static int hist_browser__show_entry(struct hist_browser *self,
- struct hist_entry *entry,
- unsigned short row)
-{
- char s[256];
- double percent;
- int printed = 0;
- int color, width = self->b.width;
- char folded_sign = ' ';
- bool current_entry = ui_browser__is_current_entry(&self->b, row);
- off_t row_offset = entry->row_offset;
-
- if (current_entry) {
- self->he_selection = entry;
- self->selection = &entry->ms;
- }
-
- if (symbol_conf.use_callchain) {
- entry->ms.has_children = !RB_EMPTY_ROOT(&entry->sorted_chain);
- folded_sign = hist_entry__folded(entry);
- }
-
- if (row_offset == 0) {
- hist_entry__snprintf(entry, s, sizeof(s), self->hists, NULL, false,
- 0, false, self->hists->stats.total_period);
- percent = (entry->period * 100.0) / self->hists->stats.total_period;
-
- color = HE_COLORSET_SELECTED;
- if (!current_entry) {
- if (percent >= MIN_RED)
- color = HE_COLORSET_TOP;
- else if (percent >= MIN_GREEN)
- color = HE_COLORSET_MEDIUM;
- else
- color = HE_COLORSET_NORMAL;
- }
-
- SLsmg_set_color(color);
- SLsmg_gotorc(self->b.y + row, self->b.x);
- if (symbol_conf.use_callchain) {
- slsmg_printf("%c ", folded_sign);
- width -= 2;
- }
- slsmg_write_nstring(s, width);
- ++row;
- ++printed;
- } else
- --row_offset;
-
- if (folded_sign == '-' && row != self->b.height) {
- printed += hist_browser__show_callchain(self, &entry->sorted_chain,
- 1, row, &row_offset,
- ¤t_entry);
- if (current_entry)
- self->he_selection = entry;
- }
-
- return printed;
-}
-
-static unsigned int hist_browser__refresh(struct ui_browser *self)
-{
- unsigned row = 0;
- struct rb_node *nd;
- struct hist_browser *hb = container_of(self, struct hist_browser, b);
-
- if (self->top == NULL)
- self->top = rb_first(&hb->hists->entries);
-
- for (nd = self->top; nd; nd = rb_next(nd)) {
- struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
-
- if (h->filtered)
- continue;
-
- row += hist_browser__show_entry(hb, h, row);
- if (row == self->height)
- break;
- }
-
- return row;
-}
-
-static void callchain_node__init_have_children_rb_tree(struct callchain_node *self)
-{
- struct rb_node *nd = rb_first(&self->rb_root);
-
- for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
- struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
- struct callchain_list *chain;
- int first = true;
-
- list_for_each_entry(chain, &child->val, list) {
- if (first) {
- first = false;
- chain->ms.has_children = chain->list.next != &child->val ||
- rb_first(&child->rb_root) != NULL;
- } else
- chain->ms.has_children = chain->list.next == &child->val &&
- rb_first(&child->rb_root) != NULL;
- }
-
- callchain_node__init_have_children_rb_tree(child);
- }
-}
-
-static void callchain_node__init_have_children(struct callchain_node *self)
-{
- struct callchain_list *chain;
-
- list_for_each_entry(chain, &self->val, list)
- chain->ms.has_children = rb_first(&self->rb_root) != NULL;
-
- callchain_node__init_have_children_rb_tree(self);
-}
-
-static void callchain__init_have_children(struct rb_root *self)
-{
- struct rb_node *nd;
-
- for (nd = rb_first(self); nd; nd = rb_next(nd)) {
- struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
- callchain_node__init_have_children(node);
- }
-}
-
-static void hist_entry__init_have_children(struct hist_entry *self)
-{
- if (!self->init_have_children) {
- callchain__init_have_children(&self->sorted_chain);
- self->init_have_children = true;
- }
-}
-
-static struct rb_node *hists__filter_entries(struct rb_node *nd)
-{
- while (nd != NULL) {
- struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
- if (!h->filtered)
- return nd;
-
- nd = rb_next(nd);
- }
-
- return NULL;
-}
-
-static struct rb_node *hists__filter_prev_entries(struct rb_node *nd)
-{
- while (nd != NULL) {
- struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
- if (!h->filtered)
- return nd;
-
- nd = rb_prev(nd);
- }
-
- return NULL;
-}
-
-static void ui_browser__hists_seek(struct ui_browser *self,
- off_t offset, int whence)
-{
- struct hist_entry *h;
- struct rb_node *nd;
- bool first = true;
-
- switch (whence) {
- case SEEK_SET:
- nd = hists__filter_entries(rb_first(self->entries));
- break;
- case SEEK_CUR:
- nd = self->top;
- goto do_offset;
- case SEEK_END:
- nd = hists__filter_prev_entries(rb_last(self->entries));
- first = false;
- break;
- default:
- return;
- }
-
- /*
- * Moves not relative to the first visible entry invalidates its
- * row_offset:
- */
- h = rb_entry(self->top, struct hist_entry, rb_node);
- h->row_offset = 0;
-
- /*
- * Here we have to check if nd is expanded (+), if it is we can't go
- * the next top level hist_entry, instead we must compute an offset of
- * what _not_ to show and not change the first visible entry.
- *
- * This offset increments when we are going from top to bottom and
- * decreases when we're going from bottom to top.
- *
- * As we don't have backpointers to the top level in the callchains
- * structure, we need to always print the whole hist_entry callchain,
- * skipping the first ones that are before the first visible entry
- * and stop when we printed enough lines to fill the screen.
- */
-do_offset:
- if (offset > 0) {
- do {
- h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded) {
- u16 remaining = h->nr_rows - h->row_offset;
- if (offset > remaining) {
- offset -= remaining;
- h->row_offset = 0;
- } else {
- h->row_offset += offset;
- offset = 0;
- self->top = nd;
- break;
- }
- }
- nd = hists__filter_entries(rb_next(nd));
- if (nd == NULL)
- break;
- --offset;
- self->top = nd;
- } while (offset != 0);
- } else if (offset < 0) {
- while (1) {
- h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded) {
- if (first) {
- if (-offset > h->row_offset) {
- offset += h->row_offset;
- h->row_offset = 0;
- } else {
- h->row_offset += offset;
- offset = 0;
- self->top = nd;
- break;
- }
- } else {
- if (-offset > h->nr_rows) {
- offset += h->nr_rows;
- h->row_offset = 0;
- } else {
- h->row_offset = h->nr_rows + offset;
- offset = 0;
- self->top = nd;
- break;
- }
- }
- }
-
- nd = hists__filter_prev_entries(rb_prev(nd));
- if (nd == NULL)
- break;
- ++offset;
- self->top = nd;
- if (offset == 0) {
- /*
- * Last unfiltered hist_entry, check if it is
- * unfolded, if it is then we should have
- * row_offset at its last entry.
- */
- h = rb_entry(nd, struct hist_entry, rb_node);
- if (h->ms.unfolded)
- h->row_offset = h->nr_rows;
- break;
- }
- first = false;
- }
- } else {
- self->top = nd;
- h = rb_entry(nd, struct hist_entry, rb_node);
- h->row_offset = 0;
- }
-}
-
-static int callchain_node__count_rows_rb_tree(struct callchain_node *self)
-{
- int n = 0;
- struct rb_node *nd;
-
- for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
- struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
- struct callchain_list *chain;
- char folded_sign = ' '; /* No children */
-
- list_for_each_entry(chain, &child->val, list) {
- ++n;
- /* We need this because we may not have children */
- folded_sign = callchain_list__folded(chain);
- if (folded_sign == '+')
- break;
- }
-
- if (folded_sign == '-') /* Have children and they're unfolded */
- n += callchain_node__count_rows_rb_tree(child);
- }
-
- return n;
-}
-
-static int callchain_node__count_rows(struct callchain_node *node)
-{
- struct callchain_list *chain;
- bool unfolded = false;
- int n = 0;
-
- list_for_each_entry(chain, &node->val, list) {
- ++n;
- unfolded = chain->ms.unfolded;
- }
-
- if (unfolded)
- n += callchain_node__count_rows_rb_tree(node);
-
- return n;
-}
-
-static int callchain__count_rows(struct rb_root *chain)
-{
- struct rb_node *nd;
- int n = 0;
-
- for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
- struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
- n += callchain_node__count_rows(node);
- }
-
- return n;
-}
-
-static bool hist_browser__toggle_fold(struct hist_browser *self)
-{
- if (map_symbol__toggle_fold(self->selection)) {
- struct hist_entry *he = self->he_selection;
-
- hist_entry__init_have_children(he);
- self->hists->nr_entries -= he->nr_rows;
-
- if (he->ms.unfolded)
- he->nr_rows = callchain__count_rows(&he->sorted_chain);
- else
- he->nr_rows = 0;
- self->hists->nr_entries += he->nr_rows;
- self->b.nr_entries = self->hists->nr_entries;
-
- return true;
- }
-
- /* If it doesn't have children, no toggling performed */
- return false;
-}
-
-static int hist_browser__run(struct hist_browser *self, const char *title,
- struct newtExitStruct *es)
-{
- char str[256], unit;
- unsigned long nr_events = self->hists->stats.nr_events[PERF_RECORD_SAMPLE];
-
- self->b.entries = &self->hists->entries;
- self->b.nr_entries = self->hists->nr_entries;
-
- hist_browser__refresh_dimensions(self);
-
- nr_events = convert_unit(nr_events, &unit);
- snprintf(str, sizeof(str), "Events: %lu%c ",
- nr_events, unit);
- newtDrawRootText(0, 0, str);
-
- if (ui_browser__show(&self->b, title) < 0)
- return -1;
-
- newtFormAddHotKey(self->b.form, 'A');
- newtFormAddHotKey(self->b.form, 'a');
- newtFormAddHotKey(self->b.form, '?');
- newtFormAddHotKey(self->b.form, 'h');
- newtFormAddHotKey(self->b.form, 'H');
- newtFormAddHotKey(self->b.form, 'd');
-
- newtFormAddHotKey(self->b.form, NEWT_KEY_LEFT);
- newtFormAddHotKey(self->b.form, NEWT_KEY_RIGHT);
- newtFormAddHotKey(self->b.form, NEWT_KEY_ENTER);
-
- while (1) {
- ui_browser__run(&self->b, es);
-
- if (es->reason != NEWT_EXIT_HOTKEY)
- break;
- switch (es->u.key) {
- case 'd': { /* Debug */
- static int seq;
- struct hist_entry *h = rb_entry(self->b.top,
- struct hist_entry, rb_node);
- ui_helpline__pop();
- ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
- seq++, self->b.nr_entries,
- self->hists->nr_entries,
- self->b.height,
- self->b.index,
- self->b.top_idx,
- h->row_offset, h->nr_rows);
- }
- continue;
- case NEWT_KEY_ENTER:
- if (hist_browser__toggle_fold(self))
- break;
- /* fall thru */
- default:
- return 0;
- }
- }
- return 0;
-}
diff --git a/tools/perf/util/pstack.h b/tools/perf/util/pstack.h
index 5ad0702..4cedea5 100644
--- a/tools/perf/util/pstack.h
+++ b/tools/perf/util/pstack.h
@@ -1,6 +1,8 @@
#ifndef _PERF_PSTACK_
#define _PERF_PSTACK_
+#include <stdbool.h>
+
struct pstack;
struct pstack *pstack__new(unsigned short max_nr_entries);
void pstack__delete(struct pstack *self);
diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c
new file mode 100644
index 0000000..9d32a41
--- /dev/null
+++ b/tools/perf/util/ui/browsers/hists.c
@@ -0,0 +1,950 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#undef _GNU_SOURCE
+#include "../libslang.h"
+#include <stdlib.h>
+#include <string.h>
+#include <newt.h>
+#include <linux/rbtree.h>
+
+#include "../../hist.h"
+#include "../../pstack.h"
+#include "../../sort.h"
+#include "../../util.h"
+
+#include "../browser.h"
+#include "../helpline.h"
+#include "../util.h"
+#include "map.h"
+
+int ui__help_window(const char *text);
+bool dialog_yesno(const char *msg);
+int popup_menu(int argc, char * const argv[]);
+
+struct hist_browser {
+ struct ui_browser b;
+ struct hists *hists;
+ struct hist_entry *he_selection;
+ struct map_symbol *selection;
+};
+
+static void hist_browser__refresh_dimensions(struct hist_browser *self)
+{
+ /* 3 == +/- toggle symbol before actual hist_entry rendering */
+ self->b.width = 3 + (hists__sort_list_width(self->hists) +
+ sizeof("[k]"));
+}
+
+static void hist_browser__reset(struct hist_browser *self)
+{
+ self->b.nr_entries = self->hists->nr_entries;
+ hist_browser__refresh_dimensions(self);
+ ui_browser__reset_index(&self->b);
+}
+
+static char tree__folded_sign(bool unfolded)
+{
+ return unfolded ? '-' : '+';
+}
+
+static char map_symbol__folded(const struct map_symbol *self)
+{
+ return self->has_children ? tree__folded_sign(self->unfolded) : ' ';
+}
+
+static char hist_entry__folded(const struct hist_entry *self)
+{
+ return map_symbol__folded(&self->ms);
+}
+
+static char callchain_list__folded(const struct callchain_list *self)
+{
+ return map_symbol__folded(&self->ms);
+}
+
+static int callchain_node__count_rows_rb_tree(struct callchain_node *self)
+{
+ int n = 0;
+ struct rb_node *nd;
+
+ for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
+ struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
+ struct callchain_list *chain;
+ char folded_sign = ' '; /* No children */
+
+ list_for_each_entry(chain, &child->val, list) {
+ ++n;
+ /* We need this because we may not have children */
+ folded_sign = callchain_list__folded(chain);
+ if (folded_sign == '+')
+ break;
+ }
+
+ if (folded_sign == '-') /* Have children and they're unfolded */
+ n += callchain_node__count_rows_rb_tree(child);
+ }
+
+ return n;
+}
+
+static int callchain_node__count_rows(struct callchain_node *node)
+{
+ struct callchain_list *chain;
+ bool unfolded = false;
+ int n = 0;
+
+ list_for_each_entry(chain, &node->val, list) {
+ ++n;
+ unfolded = chain->ms.unfolded;
+ }
+
+ if (unfolded)
+ n += callchain_node__count_rows_rb_tree(node);
+
+ return n;
+}
+
+static int callchain__count_rows(struct rb_root *chain)
+{
+ struct rb_node *nd;
+ int n = 0;
+
+ for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
+ struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
+ n += callchain_node__count_rows(node);
+ }
+
+ return n;
+}
+
+static bool map_symbol__toggle_fold(struct map_symbol *self)
+{
+ if (!self->has_children)
+ return false;
+
+ self->unfolded = !self->unfolded;
+ return true;
+}
+
+static void callchain_node__init_have_children_rb_tree(struct callchain_node *self)
+{
+ struct rb_node *nd = rb_first(&self->rb_root);
+
+ for (nd = rb_first(&self->rb_root); nd; nd = rb_next(nd)) {
+ struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
+ struct callchain_list *chain;
+ int first = true;
+
+ list_for_each_entry(chain, &child->val, list) {
+ if (first) {
+ first = false;
+ chain->ms.has_children = chain->list.next != &child->val ||
+ rb_first(&child->rb_root) != NULL;
+ } else
+ chain->ms.has_children = chain->list.next == &child->val &&
+ rb_first(&child->rb_root) != NULL;
+ }
+
+ callchain_node__init_have_children_rb_tree(child);
+ }
+}
+
+static void callchain_node__init_have_children(struct callchain_node *self)
+{
+ struct callchain_list *chain;
+
+ list_for_each_entry(chain, &self->val, list)
+ chain->ms.has_children = rb_first(&self->rb_root) != NULL;
+
+ callchain_node__init_have_children_rb_tree(self);
+}
+
+static void callchain__init_have_children(struct rb_root *self)
+{
+ struct rb_node *nd;
+
+ for (nd = rb_first(self); nd; nd = rb_next(nd)) {
+ struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
+ callchain_node__init_have_children(node);
+ }
+}
+
+static void hist_entry__init_have_children(struct hist_entry *self)
+{
+ if (!self->init_have_children) {
+ callchain__init_have_children(&self->sorted_chain);
+ self->init_have_children = true;
+ }
+}
+
+static bool hist_browser__toggle_fold(struct hist_browser *self)
+{
+ if (map_symbol__toggle_fold(self->selection)) {
+ struct hist_entry *he = self->he_selection;
+
+ hist_entry__init_have_children(he);
+ self->hists->nr_entries -= he->nr_rows;
+
+ if (he->ms.unfolded)
+ he->nr_rows = callchain__count_rows(&he->sorted_chain);
+ else
+ he->nr_rows = 0;
+ self->hists->nr_entries += he->nr_rows;
+ self->b.nr_entries = self->hists->nr_entries;
+
+ return true;
+ }
+
+ /* If it doesn't have children, no toggling performed */
+ return false;
+}
+
+static int hist_browser__run(struct hist_browser *self, const char *title,
+ struct newtExitStruct *es)
+{
+ char str[256], unit;
+ unsigned long nr_events = self->hists->stats.nr_events[PERF_RECORD_SAMPLE];
+
+ self->b.entries = &self->hists->entries;
+ self->b.nr_entries = self->hists->nr_entries;
+
+ hist_browser__refresh_dimensions(self);
+
+ nr_events = convert_unit(nr_events, &unit);
+ snprintf(str, sizeof(str), "Events: %lu%c ",
+ nr_events, unit);
+ newtDrawRootText(0, 0, str);
+
+ if (ui_browser__show(&self->b, title) < 0)
+ return -1;
+
+ newtFormAddHotKey(self->b.form, 'A');
+ newtFormAddHotKey(self->b.form, 'a');
+ newtFormAddHotKey(self->b.form, '?');
+ newtFormAddHotKey(self->b.form, 'h');
+ newtFormAddHotKey(self->b.form, 'H');
+ newtFormAddHotKey(self->b.form, 'd');
+
+ newtFormAddHotKey(self->b.form, NEWT_KEY_LEFT);
+ newtFormAddHotKey(self->b.form, NEWT_KEY_RIGHT);
+ newtFormAddHotKey(self->b.form, NEWT_KEY_ENTER);
+
+ while (1) {
+ ui_browser__run(&self->b, es);
+
+ if (es->reason != NEWT_EXIT_HOTKEY)
+ break;
+ switch (es->u.key) {
+ case 'd': { /* Debug */
+ static int seq;
+ struct hist_entry *h = rb_entry(self->b.top,
+ struct hist_entry, rb_node);
+ ui_helpline__pop();
+ ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
+ seq++, self->b.nr_entries,
+ self->hists->nr_entries,
+ self->b.height,
+ self->b.index,
+ self->b.top_idx,
+ h->row_offset, h->nr_rows);
+ }
+ continue;
+ case NEWT_KEY_ENTER:
+ if (hist_browser__toggle_fold(self))
+ break;
+ /* fall thru */
+ default:
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static char *callchain_list__sym_name(struct callchain_list *self,
+ char *bf, size_t bfsize)
+{
+ if (self->ms.sym)
+ return self->ms.sym->name;
+
+ snprintf(bf, bfsize, "%#Lx", self->ip);
+ return bf;
+}
+
+#define LEVEL_OFFSET_STEP 3
+
+static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *self,
+ struct callchain_node *chain_node,
+ u64 total, int level,
+ unsigned short row,
+ off_t *row_offset,
+ bool *is_current_entry)
+{
+ struct rb_node *node;
+ int first_row = row, width, offset = level * LEVEL_OFFSET_STEP;
+ u64 new_total, remaining;
+
+ if (callchain_param.mode == CHAIN_GRAPH_REL)
+ new_total = chain_node->children_hit;
+ else
+ new_total = total;
+
+ remaining = new_total;
+ node = rb_first(&chain_node->rb_root);
+ while (node) {
+ struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
+ struct rb_node *next = rb_next(node);
+ u64 cumul = cumul_hits(child);
+ struct callchain_list *chain;
+ char folded_sign = ' ';
+ int first = true;
+ int extra_offset = 0;
+
+ remaining -= cumul;
+
+ list_for_each_entry(chain, &child->val, list) {
+ char ipstr[BITS_PER_LONG / 4 + 1], *alloc_str;
+ const char *str;
+ int color;
+ bool was_first = first;
+
+ if (first) {
+ first = false;
+ chain->ms.has_children = chain->list.next != &child->val ||
+ rb_first(&child->rb_root) != NULL;
+ } else {
+ extra_offset = LEVEL_OFFSET_STEP;
+ chain->ms.has_children = chain->list.next == &child->val &&
+ rb_first(&child->rb_root) != NULL;
+ }
+
+ folded_sign = callchain_list__folded(chain);
+ if (*row_offset != 0) {
+ --*row_offset;
+ goto do_next;
+ }
+
+ alloc_str = NULL;
+ str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+ if (was_first) {
+ double percent = cumul * 100.0 / new_total;
+
+ if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
+ str = "Not enough memory!";
+ else
+ str = alloc_str;
+ }
+
+ color = HE_COLORSET_NORMAL;
+ width = self->b.width - (offset + extra_offset + 2);
+ if (ui_browser__is_current_entry(&self->b, row)) {
+ self->selection = &chain->ms;
+ color = HE_COLORSET_SELECTED;
+ *is_current_entry = true;
+ }
+
+ SLsmg_set_color(color);
+ SLsmg_gotorc(self->b.y + row, self->b.x);
+ slsmg_write_nstring(" ", offset + extra_offset);
+ slsmg_printf("%c ", folded_sign);
+ slsmg_write_nstring(str, width);
+ free(alloc_str);
+
+ if (++row == self->b.height)
+ goto out;
+do_next:
+ if (folded_sign == '+')
+ break;
+ }
+
+ if (folded_sign == '-') {
+ const int new_level = level + (extra_offset ? 2 : 1);
+ row += hist_browser__show_callchain_node_rb_tree(self, child, new_total,
+ new_level, row, row_offset,
+ is_current_entry);
+ }
+ if (row == self->b.height)
+ goto out;
+ node = next;
+ }
+out:
+ return row - first_row;
+}
+
+static int hist_browser__show_callchain_node(struct hist_browser *self,
+ struct callchain_node *node,
+ int level, unsigned short row,
+ off_t *row_offset,
+ bool *is_current_entry)
+{
+ struct callchain_list *chain;
+ int first_row = row,
+ offset = level * LEVEL_OFFSET_STEP,
+ width = self->b.width - offset;
+ char folded_sign = ' ';
+
+ list_for_each_entry(chain, &node->val, list) {
+ char ipstr[BITS_PER_LONG / 4 + 1], *s;
+ int color;
+ /*
+ * FIXME: This should be moved to somewhere else,
+ * probably when the callchain is created, so as not to
+ * traverse it all over again
+ */
+ chain->ms.has_children = rb_first(&node->rb_root) != NULL;
+ folded_sign = callchain_list__folded(chain);
+
+ if (*row_offset != 0) {
+ --*row_offset;
+ continue;
+ }
+
+ color = HE_COLORSET_NORMAL;
+ if (ui_browser__is_current_entry(&self->b, row)) {
+ self->selection = &chain->ms;
+ color = HE_COLORSET_SELECTED;
+ *is_current_entry = true;
+ }
+
+ s = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
+ SLsmg_gotorc(self->b.y + row, self->b.x);
+ SLsmg_set_color(color);
+ slsmg_write_nstring(" ", offset);
+ slsmg_printf("%c ", folded_sign);
+ slsmg_write_nstring(s, width - 2);
+
+ if (++row == self->b.height)
+ goto out;
+ }
+
+ if (folded_sign == '-')
+ row += hist_browser__show_callchain_node_rb_tree(self, node,
+ self->hists->stats.total_period,
+ level + 1, row,
+ row_offset,
+ is_current_entry);
+out:
+ return row - first_row;
+}
+
+static int hist_browser__show_callchain(struct hist_browser *self,
+ struct rb_root *chain,
+ int level, unsigned short row,
+ off_t *row_offset,
+ bool *is_current_entry)
+{
+ struct rb_node *nd;
+ int first_row = row;
+
+ for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
+ struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
+
+ row += hist_browser__show_callchain_node(self, node, level,
+ row, row_offset,
+ is_current_entry);
+ if (row == self->b.height)
+ break;
+ }
+
+ return row - first_row;
+}
+
+static int hist_browser__show_entry(struct hist_browser *self,
+ struct hist_entry *entry,
+ unsigned short row)
+{
+ char s[256];
+ double percent;
+ int printed = 0;
+ int color, width = self->b.width;
+ char folded_sign = ' ';
+ bool current_entry = ui_browser__is_current_entry(&self->b, row);
+ off_t row_offset = entry->row_offset;
+
+ if (current_entry) {
+ self->he_selection = entry;
+ self->selection = &entry->ms;
+ }
+
+ if (symbol_conf.use_callchain) {
+ entry->ms.has_children = !RB_EMPTY_ROOT(&entry->sorted_chain);
+ folded_sign = hist_entry__folded(entry);
+ }
+
+ if (row_offset == 0) {
+ hist_entry__snprintf(entry, s, sizeof(s), self->hists, NULL, false,
+ 0, false, self->hists->stats.total_period);
+ percent = (entry->period * 100.0) / self->hists->stats.total_period;
+
+ color = HE_COLORSET_SELECTED;
+ if (!current_entry) {
+ if (percent >= MIN_RED)
+ color = HE_COLORSET_TOP;
+ else if (percent >= MIN_GREEN)
+ color = HE_COLORSET_MEDIUM;
+ else
+ color = HE_COLORSET_NORMAL;
+ }
+
+ SLsmg_set_color(color);
+ SLsmg_gotorc(self->b.y + row, self->b.x);
+ if (symbol_conf.use_callchain) {
+ slsmg_printf("%c ", folded_sign);
+ width -= 2;
+ }
+ slsmg_write_nstring(s, width);
+ ++row;
+ ++printed;
+ } else
+ --row_offset;
+
+ if (folded_sign == '-' && row != self->b.height) {
+ printed += hist_browser__show_callchain(self, &entry->sorted_chain,
+ 1, row, &row_offset,
+ ¤t_entry);
+ if (current_entry)
+ self->he_selection = entry;
+ }
+
+ return printed;
+}
+
+static unsigned int hist_browser__refresh(struct ui_browser *self)
+{
+ unsigned row = 0;
+ struct rb_node *nd;
+ struct hist_browser *hb = container_of(self, struct hist_browser, b);
+
+ if (self->top == NULL)
+ self->top = rb_first(&hb->hists->entries);
+
+ for (nd = self->top; nd; nd = rb_next(nd)) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+
+ if (h->filtered)
+ continue;
+
+ row += hist_browser__show_entry(hb, h, row);
+ if (row == self->height)
+ break;
+ }
+
+ return row;
+}
+
+static struct rb_node *hists__filter_entries(struct rb_node *nd)
+{
+ while (nd != NULL) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ if (!h->filtered)
+ return nd;
+
+ nd = rb_next(nd);
+ }
+
+ return NULL;
+}
+
+static struct rb_node *hists__filter_prev_entries(struct rb_node *nd)
+{
+ while (nd != NULL) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ if (!h->filtered)
+ return nd;
+
+ nd = rb_prev(nd);
+ }
+
+ return NULL;
+}
+
+static void ui_browser__hists_seek(struct ui_browser *self,
+ off_t offset, int whence)
+{
+ struct hist_entry *h;
+ struct rb_node *nd;
+ bool first = true;
+
+ switch (whence) {
+ case SEEK_SET:
+ nd = hists__filter_entries(rb_first(self->entries));
+ break;
+ case SEEK_CUR:
+ nd = self->top;
+ goto do_offset;
+ case SEEK_END:
+ nd = hists__filter_prev_entries(rb_last(self->entries));
+ first = false;
+ break;
+ default:
+ return;
+ }
+
+ /*
+ * Moves not relative to the first visible entry invalidates its
+ * row_offset:
+ */
+ h = rb_entry(self->top, struct hist_entry, rb_node);
+ h->row_offset = 0;
+
+ /*
+ * Here we have to check if nd is expanded (+), if it is we can't go
+ * the next top level hist_entry, instead we must compute an offset of
+ * what _not_ to show and not change the first visible entry.
+ *
+ * This offset increments when we are going from top to bottom and
+ * decreases when we're going from bottom to top.
+ *
+ * As we don't have backpointers to the top level in the callchains
+ * structure, we need to always print the whole hist_entry callchain,
+ * skipping the first ones that are before the first visible entry
+ * and stop when we printed enough lines to fill the screen.
+ */
+do_offset:
+ if (offset > 0) {
+ do {
+ h = rb_entry(nd, struct hist_entry, rb_node);
+ if (h->ms.unfolded) {
+ u16 remaining = h->nr_rows - h->row_offset;
+ if (offset > remaining) {
+ offset -= remaining;
+ h->row_offset = 0;
+ } else {
+ h->row_offset += offset;
+ offset = 0;
+ self->top = nd;
+ break;
+ }
+ }
+ nd = hists__filter_entries(rb_next(nd));
+ if (nd == NULL)
+ break;
+ --offset;
+ self->top = nd;
+ } while (offset != 0);
+ } else if (offset < 0) {
+ while (1) {
+ h = rb_entry(nd, struct hist_entry, rb_node);
+ if (h->ms.unfolded) {
+ if (first) {
+ if (-offset > h->row_offset) {
+ offset += h->row_offset;
+ h->row_offset = 0;
+ } else {
+ h->row_offset += offset;
+ offset = 0;
+ self->top = nd;
+ break;
+ }
+ } else {
+ if (-offset > h->nr_rows) {
+ offset += h->nr_rows;
+ h->row_offset = 0;
+ } else {
+ h->row_offset = h->nr_rows + offset;
+ offset = 0;
+ self->top = nd;
+ break;
+ }
+ }
+ }
+
+ nd = hists__filter_prev_entries(rb_prev(nd));
+ if (nd == NULL)
+ break;
+ ++offset;
+ self->top = nd;
+ if (offset == 0) {
+ /*
+ * Last unfiltered hist_entry, check if it is
+ * unfolded, if it is then we should have
+ * row_offset at its last entry.
+ */
+ h = rb_entry(nd, struct hist_entry, rb_node);
+ if (h->ms.unfolded)
+ h->row_offset = h->nr_rows;
+ break;
+ }
+ first = false;
+ }
+ } else {
+ self->top = nd;
+ h = rb_entry(nd, struct hist_entry, rb_node);
+ h->row_offset = 0;
+ }
+}
+
+static struct hist_browser *hist_browser__new(struct hists *hists)
+{
+ struct hist_browser *self = zalloc(sizeof(*self));
+
+ if (self) {
+ self->hists = hists;
+ self->b.refresh = hist_browser__refresh;
+ self->b.seek = ui_browser__hists_seek;
+ }
+
+ return self;
+}
+
+static void hist_browser__delete(struct hist_browser *self)
+{
+ newtFormDestroy(self->b.form);
+ newtPopWindow();
+ free(self);
+}
+
+static struct hist_entry *hist_browser__selected_entry(struct hist_browser *self)
+{
+ return self->he_selection;
+}
+
+static struct thread *hist_browser__selected_thread(struct hist_browser *self)
+{
+ return self->he_selection->thread;
+}
+
+static int hist_browser__title(char *bf, size_t size, const char *ev_name,
+ const struct dso *dso, const struct thread *thread)
+{
+ int printed = 0;
+
+ if (thread)
+ printed += snprintf(bf + printed, size - printed,
+ "Thread: %s(%d)",
+ (thread->comm_set ? thread->comm : ""),
+ thread->pid);
+ if (dso)
+ printed += snprintf(bf + printed, size - printed,
+ "%sDSO: %s", thread ? " " : "",
+ dso->short_name);
+ return printed ?: snprintf(bf, size, "Event: %s", ev_name);
+}
+
+int hists__browse(struct hists *self, const char *helpline, const char *ev_name)
+{
+ struct hist_browser *browser = hist_browser__new(self);
+ struct pstack *fstack;
+ const struct thread *thread_filter = NULL;
+ const struct dso *dso_filter = NULL;
+ struct newtExitStruct es;
+ char msg[160];
+ int key = -1;
+
+ if (browser == NULL)
+ return -1;
+
+ fstack = pstack__new(2);
+ if (fstack == NULL)
+ goto out;
+
+ ui_helpline__push(helpline);
+
+ hist_browser__title(msg, sizeof(msg), ev_name,
+ dso_filter, thread_filter);
+
+ while (1) {
+ const struct thread *thread;
+ const struct dso *dso;
+ char *options[16];
+ int nr_options = 0, choice = 0, i,
+ annotate = -2, zoom_dso = -2, zoom_thread = -2,
+ browse_map = -2;
+
+ if (hist_browser__run(browser, msg, &es))
+ break;
+
+ thread = hist_browser__selected_thread(browser);
+ dso = browser->selection->map ? browser->selection->map->dso : NULL;
+
+ if (es.reason == NEWT_EXIT_HOTKEY) {
+ key = es.u.key;
+
+ switch (key) {
+ case NEWT_KEY_F1:
+ goto do_help;
+ case NEWT_KEY_TAB:
+ case NEWT_KEY_UNTAB:
+ /*
+ * Exit the browser, let hists__browser_tree
+ * go to the next or previous
+ */
+ goto out_free_stack;
+ default:;
+ }
+
+ key = toupper(key);
+ switch (key) {
+ case 'A':
+ if (browser->selection->map == NULL &&
+ browser->selection->map->dso->annotate_warned)
+ continue;
+ goto do_annotate;
+ case 'D':
+ goto zoom_dso;
+ case 'T':
+ goto zoom_thread;
+ case 'H':
+ case '?':
+do_help:
+ ui__help_window("-> Zoom into DSO/Threads & Annotate current symbol\n"
+ "<- Zoom out\n"
+ "a Annotate current symbol\n"
+ "h/?/F1 Show this window\n"
+ "d Zoom into current DSO\n"
+ "t Zoom into current Thread\n"
+ "q/CTRL+C Exit browser");
+ continue;
+ default:;
+ }
+ if (is_exit_key(key)) {
+ if (key == NEWT_KEY_ESCAPE &&
+ !dialog_yesno("Do you really want to exit?"))
+ continue;
+ break;
+ }
+
+ if (es.u.key == NEWT_KEY_LEFT) {
+ const void *top;
+
+ if (pstack__empty(fstack))
+ continue;
+ top = pstack__pop(fstack);
+ if (top == &dso_filter)
+ goto zoom_out_dso;
+ if (top == &thread_filter)
+ goto zoom_out_thread;
+ continue;
+ }
+ }
+
+ if (browser->selection->sym != NULL &&
+ !browser->selection->map->dso->annotate_warned &&
+ asprintf(&options[nr_options], "Annotate %s",
+ browser->selection->sym->name) > 0)
+ annotate = nr_options++;
+
+ if (thread != NULL &&
+ asprintf(&options[nr_options], "Zoom %s %s(%d) thread",
+ (thread_filter ? "out of" : "into"),
+ (thread->comm_set ? thread->comm : ""),
+ thread->pid) > 0)
+ zoom_thread = nr_options++;
+
+ if (dso != NULL &&
+ asprintf(&options[nr_options], "Zoom %s %s DSO",
+ (dso_filter ? "out of" : "into"),
+ (dso->kernel ? "the Kernel" : dso->short_name)) > 0)
+ zoom_dso = nr_options++;
+
+ if (browser->selection->map != NULL &&
+ asprintf(&options[nr_options], "Browse map details") > 0)
+ browse_map = nr_options++;
+
+ options[nr_options++] = (char *)"Exit";
+
+ choice = popup_menu(nr_options, options);
+
+ for (i = 0; i < nr_options - 1; ++i)
+ free(options[i]);
+
+ if (choice == nr_options - 1)
+ break;
+
+ if (choice == -1)
+ continue;
+
+ if (choice == annotate) {
+ struct hist_entry *he;
+do_annotate:
+ if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) {
+ browser->selection->map->dso->annotate_warned = 1;
+ ui_helpline__puts("No vmlinux file found, can't "
+ "annotate with just a "
+ "kallsyms file");
+ continue;
+ }
+
+ he = hist_browser__selected_entry(browser);
+ if (he == NULL)
+ continue;
+
+ hist_entry__tui_annotate(he);
+ } else if (choice == browse_map)
+ map__browse(browser->selection->map);
+ else if (choice == zoom_dso) {
+zoom_dso:
+ if (dso_filter) {
+ pstack__remove(fstack, &dso_filter);
+zoom_out_dso:
+ ui_helpline__pop();
+ dso_filter = NULL;
+ } else {
+ if (dso == NULL)
+ continue;
+ ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
+ dso->kernel ? "the Kernel" : dso->short_name);
+ dso_filter = dso;
+ pstack__push(fstack, &dso_filter);
+ }
+ hists__filter_by_dso(self, dso_filter);
+ hist_browser__title(msg, sizeof(msg), ev_name,
+ dso_filter, thread_filter);
+ hist_browser__reset(browser);
+ } else if (choice == zoom_thread) {
+zoom_thread:
+ if (thread_filter) {
+ pstack__remove(fstack, &thread_filter);
+zoom_out_thread:
+ ui_helpline__pop();
+ thread_filter = NULL;
+ } else {
+ ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
+ thread->comm_set ? thread->comm : "",
+ thread->pid);
+ thread_filter = thread;
+ pstack__push(fstack, &thread_filter);
+ }
+ hists__filter_by_thread(self, thread_filter);
+ hist_browser__title(msg, sizeof(msg), ev_name,
+ dso_filter, thread_filter);
+ hist_browser__reset(browser);
+ }
+ }
+out_free_stack:
+ pstack__delete(fstack);
+out:
+ hist_browser__delete(browser);
+ return key;
+}
+
+int hists__tui_browse_tree(struct rb_root *self, const char *help)
+{
+ struct rb_node *first = rb_first(self), *nd = first, *next;
+ int key = 0;
+
+ while (nd) {
+ struct hists *hists = rb_entry(nd, struct hists, rb_node);
+ const char *ev_name = __event_name(hists->type, hists->config);
+
+ key = hists__browse(hists, help, ev_name);
+
+ if (is_exit_key(key))
+ break;
+
+ switch (key) {
+ case NEWT_KEY_TAB:
+ next = rb_next(nd);
+ if (next)
+ nd = next;
+ break;
+ case NEWT_KEY_UNTAB:
+ if (nd == first)
+ continue;
+ nd = rb_prev(nd);
+ default:
+ break;
+ }
+ }
+
+ return key;
+}
--
1.6.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists