cregit-Linux how code gets into the kernel

Release 4.10 tools/perf/ui/gtk/hists.c

#include "../evlist.h"
#include "../cache.h"
#include "../evsel.h"
#include "../sort.h"
#include "../hist.h"
#include "../helpline.h"
#include "gtk.h"


#define MAX_COLUMNS			32


static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...) { int ret = 0; int len; va_list args; double percent; const char *markup; char *buf = hpp->buf; size_t size = hpp->size; va_start(args, fmt); len = va_arg(args, int); percent = va_arg(args, double); va_end(args); markup = perf_gtk__get_percent_color(percent); if (markup) ret += scnprintf(buf, size, markup); ret += scnprintf(buf + ret, size - ret, fmt, len, percent); if (markup) ret += scnprintf(buf + ret, size - ret, "</span>"); return ret; }

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#define __HPP_COLOR_PERCENT_FN(_type, _field) \ static u64 he_get_##_field(struct hist_entry *he) \ { \ return he->stat._field; \ } \ \ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%", \ __percent_color_snprintf, true); \ } #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \ static u64 he_get_acc_##_field(struct hist_entry *he) \ { \ return he->stat_acc->_field; \ } \ \ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", \ __percent_color_snprintf, true); \ } __HPP_COLOR_PERCENT_FN(overhead, period) __HPP_COLOR_PERCENT_FN(overhead_sys, period_sys) __HPP_COLOR_PERCENT_FN(overhead_us, period_us) __HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys) __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us) __HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period) #undef __HPP_COLOR_PERCENT_FN
void perf_gtk__init_hpp(void) { perf_hpp__format[PERF_HPP__OVERHEAD].color = perf_gtk__hpp_color_overhead; perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color = perf_gtk__hpp_color_overhead_sys; perf_hpp__format[PERF_HPP__OVERHEAD_US].color = perf_gtk__hpp_color_overhead_us; perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color = perf_gtk__hpp_color_overhead_guest_sys; perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color = perf_gtk__hpp_color_overhead_guest_us; perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color = perf_gtk__hpp_color_overhead_acc; }

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static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store, GtkTreeIter *parent, int col, u64 total) { struct rb_node *nd; bool has_single_node = (rb_first(root) == rb_last(root)); for (nd = rb_first(root); nd; nd = rb_next(nd)) { struct callchain_node *node; struct callchain_list *chain; GtkTreeIter iter, new_parent; bool need_new_parent; node = rb_entry(nd, struct callchain_node, rb_node); new_parent = *parent; need_new_parent = !has_single_node; callchain_node__make_parent_list(node); list_for_each_entry(chain, &node->parent_val, list) { char buf[128]; gtk_tree_store_append(store, &iter, &new_parent); callchain_node__scnprintf_value(node, buf, sizeof(buf), total); gtk_tree_store_set(store, &iter, 0, buf, -1); callchain_list__sym_name(chain, buf, sizeof(buf), false); gtk_tree_store_set(store, &iter, col, buf, -1); if (need_new_parent) { /* * Only show the top-most symbol in a callchain * if it's not the only callchain. */ new_parent = iter; need_new_parent = false; } } list_for_each_entry(chain, &node->val, list) { char buf[128]; gtk_tree_store_append(store, &iter, &new_parent); callchain_node__scnprintf_value(node, buf, sizeof(buf), total); gtk_tree_store_set(store, &iter, 0, buf, -1); callchain_list__sym_name(chain, buf, sizeof(buf), false); gtk_tree_store_set(store, &iter, col, buf, -1); if (need_new_parent) { /* * Only show the top-most symbol in a callchain * if it's not the only callchain. */ new_parent = iter; need_new_parent = false; } } } }

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static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store, GtkTreeIter *parent, int col, u64 total) { struct rb_node *nd; for (nd = rb_first(root); nd; nd = rb_next(nd)) { struct callchain_node *node; struct callchain_list *chain; GtkTreeIter iter; char buf[64]; char *str, *str_alloc = NULL; bool first = true; node = rb_entry(nd, struct callchain_node, rb_node); callchain_node__make_parent_list(node); list_for_each_entry(chain, &node->parent_val, list) { char name[1024]; callchain_list__sym_name(chain, name, sizeof(name), false); if (asprintf(&str, "%s%s%s", first ? "" : str_alloc, first ? "" : symbol_conf.field_sep ?: "; ", name) < 0) return; first = false; free(str_alloc); str_alloc = str; } list_for_each_entry(chain, &node->val, list) { char name[1024]; callchain_list__sym_name(chain, name, sizeof(name), false); if (asprintf(&str, "%s%s%s", first ? "" : str_alloc, first ? "" : symbol_conf.field_sep ?: "; ", name) < 0) return; first = false; free(str_alloc); str_alloc = str; } gtk_tree_store_append(store, &iter, parent); callchain_node__scnprintf_value(node, buf, sizeof(buf), total); gtk_tree_store_set(store, &iter, 0, buf, -1); gtk_tree_store_set(store, &iter, col, str, -1); free(str_alloc); } }

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static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store, GtkTreeIter *parent, int col, u64 total) { struct rb_node *nd; bool has_single_node = (rb_first(root) == rb_last(root)); for (nd = rb_first(root); nd; nd = rb_next(nd)) { struct callchain_node *node; struct callchain_list *chain; GtkTreeIter iter, new_parent; bool need_new_parent; u64 child_total; node = rb_entry(nd, struct callchain_node, rb_node); new_parent = *parent; need_new_parent = !has_single_node && (node->val_nr > 1); list_for_each_entry(chain, &node->val, list) { char buf[128]; gtk_tree_store_append(store, &iter, &new_parent); callchain_node__scnprintf_value(node, buf, sizeof(buf), total); gtk_tree_store_set(store, &iter, 0, buf, -1); callchain_list__sym_name(chain, buf, sizeof(buf), false); gtk_tree_store_set(store, &iter, col, buf, -1); if (need_new_parent) { /* * Only show the top-most symbol in a callchain * if it's not the only callchain. */ new_parent = iter; need_new_parent = false; } } if (callchain_param.mode == CHAIN_GRAPH_REL) child_total = node->children_hit; else child_total = total; /* Now 'iter' contains info of the last callchain_list */ perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col, child_total); } }

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static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store, GtkTreeIter *parent, int col, u64 total) { if (callchain_param.mode == CHAIN_FLAT) perf_gtk__add_callchain_flat(root, store, parent, col, total); else if (callchain_param.mode == CHAIN_FOLDED) perf_gtk__add_callchain_folded(root, store, parent, col, total); else perf_gtk__add_callchain_graph(root, store, parent, col, total); }

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static void on_row_activated(GtkTreeView *view, GtkTreePath *path, GtkTreeViewColumn *col __maybe_unused, gpointer user_data __maybe_unused) { bool expanded = gtk_tree_view_row_expanded(view, path); if (expanded) gtk_tree_view_collapse_row(view, path); else gtk_tree_view_expand_row(view, path, FALSE); }

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static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists, float min_pcnt) { struct perf_hpp_fmt *fmt; GType col_types[MAX_COLUMNS]; GtkCellRenderer *renderer; GtkTreeStore *store; struct rb_node *nd; GtkWidget *view; int col_idx; int sym_col = -1; int nr_cols; char s[512]; struct perf_hpp hpp = { .buf = s, .size = sizeof(s), }; nr_cols = 0; hists__for_each_format(hists, fmt) col_types[nr_cols++] = G_TYPE_STRING; store = gtk_tree_store_newv(nr_cols, col_types); view = gtk_tree_view_new(); renderer = gtk_cell_renderer_text_new(); col_idx = 0; hists__for_each_format(hists, fmt) { if (perf_hpp__should_skip(fmt, hists)) continue; /* * XXX no way to determine where symcol column is.. * Just use last column for now. */ if (perf_hpp__is_sort_entry(fmt)) sym_col = col_idx; gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1, fmt->name, renderer, "markup", col_idx++, NULL); } for (col_idx = 0; col_idx < nr_cols; col_idx++) { GtkTreeViewColumn *column; column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx); gtk_tree_view_column_set_resizable(column, TRUE); if (col_idx == sym_col) { gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view), column); } } gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store)); g_object_unref(GTK_TREE_MODEL(store)); for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) { struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); GtkTreeIter iter; u64 total = hists__total_period(h->hists); float percent; if (h->filtered) continue; percent = hist_entry__get_percent_limit(h); if (percent < min_pcnt) continue; gtk_tree_store_append(store, &iter, NULL); col_idx = 0; hists__for_each_format(hists, fmt) { if (perf_hpp__should_skip(fmt, h->hists)) continue; if (fmt->color) fmt->color(fmt, &hpp, h); else fmt->entry(fmt, &hpp, h); gtk_tree_store_set(store, &iter, col_idx++, s, -1); } if (symbol_conf.use_callchain && hists__has(hists, sym)) { if (callchain_param.mode == CHAIN_GRAPH_REL) total = symbol_conf.cumulate_callchain ? h->stat_acc->period : h->stat.period; perf_gtk__add_callchain(&h->sorted_chain, store, &iter, sym_col, total); } } gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE); g_signal_connect(view, "row-activated", G_CALLBACK(on_row_activated), NULL); gtk_container_add(GTK_CONTAINER(window), view); }

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static void perf_gtk__add_hierarchy_entries(struct hists *hists, struct rb_root *root, GtkTreeStore *store, GtkTreeIter *parent, struct perf_hpp *hpp, float min_pcnt) { int col_idx = 0; struct rb_node *node; struct hist_entry *he; struct perf_hpp_fmt *fmt; struct perf_hpp_list_node *fmt_node; u64 total = hists__total_period(hists); int size; for (node = rb_first(root); node; node = rb_next(node)) { GtkTreeIter iter; float percent; char *bf; he = rb_entry(node, struct hist_entry, rb_node); if (he->filtered) continue; percent = hist_entry__get_percent_limit(he); if (percent < min_pcnt) continue; gtk_tree_store_append(store, &iter, parent); col_idx = 0; /* the first hpp_list_node is for overhead columns */ fmt_node = list_first_entry(&hists->hpp_formats, struct perf_hpp_list_node, list); perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { if (fmt->color) fmt->color(fmt, hpp, he); else fmt->entry(fmt, hpp, he); gtk_tree_store_set(store, &iter, col_idx++, hpp->buf, -1); } bf = hpp->buf; size = hpp->size; perf_hpp_list__for_each_format(he->hpp_list, fmt) { int ret; if (fmt->color) ret = fmt->color(fmt, hpp, he); else ret = fmt->entry(fmt, hpp, he); snprintf(hpp->buf + ret, hpp->size - ret, " "); advance_hpp(hpp, ret + 2); } gtk_tree_store_set(store, &iter, col_idx, ltrim(rtrim(bf)), -1); if (!he->leaf) { hpp->buf = bf; hpp->size = size; perf_gtk__add_hierarchy_entries(hists, &he->hroot_out, store, &iter, hpp, min_pcnt); if (!hist_entry__has_hierarchy_children(he, min_pcnt)) { char buf[32]; GtkTreeIter child; snprintf(buf, sizeof(buf), "no entry >= %.2f%%", min_pcnt); gtk_tree_store_append(store, &child, &iter); gtk_tree_store_set(store, &child, col_idx, buf, -1); } } if (symbol_conf.use_callchain && he->leaf) { if (callchain_param.mode == CHAIN_GRAPH_REL) total = symbol_conf.cumulate_callchain ? he->stat_acc->period : he->stat.period; perf_gtk__add_callchain(&he->sorted_chain, store, &iter, col_idx, total); } } }

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static void perf_gtk__show_hierarchy(GtkWidget *window, struct hists *hists, float min_pcnt) { struct perf_hpp_fmt *fmt; struct perf_hpp_list_node *fmt_node; GType col_types[MAX_COLUMNS]; GtkCellRenderer *renderer; GtkTreeStore *store; GtkWidget *view; int col_idx; int nr_cols = 0; char s[512]; char buf[512]; bool first_node, first_col; struct perf_hpp hpp = { .buf = s, .size = sizeof(s), }; hists__for_each_format(hists, fmt) { if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt)) break; col_types[nr_cols++] = G_TYPE_STRING; } col_types[nr_cols++] = G_TYPE_STRING; store = gtk_tree_store_newv(nr_cols, col_types); view = gtk_tree_view_new(); renderer = gtk_cell_renderer_text_new(); col_idx = 0; /* the first hpp_list_node is for overhead columns */ fmt_node = list_first_entry(&hists->hpp_formats, struct perf_hpp_list_node, list); perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1, fmt->name, renderer, "markup", col_idx++, NULL); } /* construct merged column header since sort keys share single column */ buf[0] = '\0'; first_node = true; list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) { if (!first_node) strcat(buf, " / "); first_node = false; first_col = true; perf_hpp_list__for_each_format(&fmt_node->hpp ,fmt) { if (perf_hpp__should_skip(fmt, hists)) continue; if (!first_col) strcat(buf, "+"); first_col = false; fmt->header(fmt, &hpp, hists, 0, NULL); strcat(buf, ltrim(rtrim(hpp.buf))); } } gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1, buf, renderer, "markup", col_idx++, NULL); for (col_idx = 0; col_idx < nr_cols; col_idx++) { GtkTreeViewColumn *column; column = gtk_tree_view_get_column(GTK_TREE_VIEW(view), col_idx); gtk_tree_view_column_set_resizable(column, TRUE); if (col_idx == 0) { gtk_tree_view_set_expander_column(GTK_TREE_VIEW(view), column); } } gtk_tree_view_set_model(GTK_TREE_VIEW(view), GTK_TREE_MODEL(store)); g_object_unref(GTK_TREE_MODEL(store)); perf_gtk__add_hierarchy_entries(hists, &hists->entries, store, NULL, &hpp, min_pcnt); gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(view), TRUE); g_signal_connect(view, "row-activated", G_CALLBACK(on_row_activated), NULL); gtk_container_add(GTK_CONTAINER(window), view); }

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int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help, struct hist_browser_timer *hbt __maybe_unused, float min_pcnt) { struct perf_evsel *pos; GtkWidget *vbox; GtkWidget *notebook; GtkWidget *info_bar; GtkWidget *statbar; GtkWidget *window; signal(SIGSEGV, perf_gtk__signal); signal(SIGFPE, perf_gtk__signal); signal(SIGINT, perf_gtk__signal); signal(SIGQUIT, perf_gtk__signal); signal(SIGTERM, perf_gtk__signal); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(window), "perf report"); g_signal_connect(window, "delete_event", gtk_main_quit, NULL); pgctx = perf_gtk__activate_context(window); if (!pgctx) return -1; vbox = gtk_vbox_new(FALSE, 0); notebook = gtk_notebook_new(); gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0); info_bar = perf_gtk__setup_info_bar(); if (info_bar) gtk_box_pack_start(GTK_BOX(vbox), info_bar, FALSE, FALSE, 0); statbar = perf_gtk__setup_statusbar(); gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0); gtk_container_add(GTK_CONTAINER(window), vbox); evlist__for_each_entry(evlist, pos) { struct hists *hists = evsel__hists(pos); const char *evname = perf_evsel__name(pos); GtkWidget *scrolled_window; GtkWidget *tab_label; char buf[512]; size_t size = sizeof(buf); if (symbol_conf