tools/perf/util/newt.c

   1 #define _GNU_SOURCE
   2 #include <stdio.h>
   3 #undef _GNU_SOURCE
   4 /*
   5  * slang versions <= 2.0.6 have a "#if HAVE_LONG_LONG" that breaks
   6  * the build if it isn't defined. Use the equivalent one that glibc
   7  * has on features.h.
   8  */
   9 #include <features.h>
  10 #ifndef HAVE_LONG_LONG
  11 #define HAVE_LONG_LONG __GLIBC_HAVE_LONG_LONG
  12 #endif
  13 #include <slang.h>
  14 #include <stdlib.h>
  15 #include <newt.h>
  16 #include <sys/ttydefaults.h>
  17
  18 #include "cache.h"
  19 #include "hist.h"
  20 #include "pstack.h"
  21 #include "session.h"
  22 #include "sort.h"
  23 #include "symbol.h"
  24
  25 #if SLANG_VERSION < 20104
  26 #define slsmg_printf(msg, args...) SLsmg_printf((char *)msg, ##args)
  27 #define slsmg_write_nstring(msg, len) SLsmg_write_nstring((char *)msg, len)
  28 #define sltt_set_color(obj, name, fg, bg) SLtt_set_color(obj,(char *)name,\
  29                                                          (char *)fg, (char *)bg)
  30 #else
  31 #define slsmg_printf SLsmg_printf
  32 #define slsmg_write_nstring SLsmg_write_nstring
  33 #define sltt_set_color SLtt_set_color
  34 #endif
  35
  36 struct ui_progress {
  37         newtComponent form, scale;
  38 };
  39
  40 struct ui_progress *ui_progress__new(const char *title, u64 total)
  41 {
  42         struct ui_progress *self = malloc(sizeof(*self));
  43
  44         if (self != NULL) {
  45                 int cols;
  46                 newtGetScreenSize(&cols, NULL);
  47                 cols -= 4;
  48                 newtCenteredWindow(cols, 1, title);
  49                 self->form  = newtForm(NULL, NULL, 0);
  50                 if (self->form == NULL)
  51                         goto out_free_self;
  52                 self->scale = newtScale(0, 0, cols, total);
  53                 if (self->scale == NULL)
  54                         goto out_free_form;
  55                 newtFormAddComponent(self->form, self->scale);
  56                 newtRefresh();
  57         }
  58
  59         return self;
  60
  61 out_free_form:
  62         newtFormDestroy(self->form);
  63 out_free_self:
  64         free(self);
  65         return NULL;
  66 }
  67
  68 void ui_progress__update(struct ui_progress *self, u64 curr)
  69 {
  70         newtScaleSet(self->scale, curr);
  71         newtRefresh();
  72 }
  73
  74 void ui_progress__delete(struct ui_progress *self)
  75 {
  76         newtFormDestroy(self->form);
  77         newtPopWindow();
  78         free(self);
  79 }
  80
  81 static void ui_helpline__pop(void)
  82 {
  83         newtPopHelpLine();
  84 }
  85
  86 static void ui_helpline__push(const char *msg)
  87 {
  88         newtPushHelpLine(msg);
  89 }
  90
  91 static void ui_helpline__vpush(const char *fmt, va_list ap)
  92 {
  93         char *s;
  94
  95         if (vasprintf(&s, fmt, ap) < 0)
  96                 vfprintf(stderr, fmt, ap);
  97         else {
  98                 ui_helpline__push(s);
  99                 free(s);
 100         }
 101 }
 102
 103 static void ui_helpline__fpush(const char *fmt, ...)
 104 {
 105         va_list ap;
 106
 107         va_start(ap, fmt);
 108         ui_helpline__vpush(fmt, ap);
 109         va_end(ap);
 110 }
 111
 112 static void ui_helpline__puts(const char *msg)
 113 {
 114         ui_helpline__pop();
 115         ui_helpline__push(msg);
 116 }
 117
 118 static char browser__last_msg[1024];
 119
 120 int browser__show_help(const char *format, va_list ap)
 121 {
 122         int ret;
 123         static int backlog;
 124
 125         ret = vsnprintf(browser__last_msg + backlog,
 126                         sizeof(browser__last_msg) - backlog, format, ap);
 127         backlog += ret;
 128
 129         if (browser__last_msg[backlog - 1] == '\n') {
 130                 ui_helpline__puts(browser__last_msg);
 131                 newtRefresh();
 132                 backlog = 0;
 133         }
 134
 135         return ret;
 136 }
 137
 138 static void newt_form__set_exit_keys(newtComponent self)
 139 {
 140         newtFormAddHotKey(self, NEWT_KEY_LEFT);
 141         newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
 142         newtFormAddHotKey(self, 'Q');
 143         newtFormAddHotKey(self, 'q');
 144         newtFormAddHotKey(self, CTRL('c'));
 145 }
 146
 147 static newtComponent newt_form__new(void)
 148 {
 149         newtComponent self = newtForm(NULL, NULL, 0);
 150         if (self)
 151                 newt_form__set_exit_keys(self);
 152         return self;
 153 }
 154
 155 static int popup_menu(int argc, char * const argv[])
 156 {
 157         struct newtExitStruct es;
 158         int i, rc = -1, max_len = 5;
 159         newtComponent listbox, form = newt_form__new();
 160
 161         if (form == NULL)
 162                 return -1;
 163
 164         listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
 165         if (listbox == NULL)
 166                 goto out_destroy_form;
 167
 168         newtFormAddComponent(form, listbox);
 169
 170         for (i = 0; i < argc; ++i) {
 171                 int len = strlen(argv[i]);
 172                 if (len > max_len)
 173                         max_len = len;
 174                 if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
 175                         goto out_destroy_form;
 176         }
 177
 178         newtCenteredWindow(max_len, argc, NULL);
 179         newtFormRun(form, &es);
 180         rc = newtListboxGetCurrent(listbox) - NULL;
 181         if (es.reason == NEWT_EXIT_HOTKEY)
 182                 rc = -1;
 183         newtPopWindow();
 184 out_destroy_form:
 185         newtFormDestroy(form);
 186         return rc;
 187 }
 188
 189 static int ui__help_window(const char *text)
 190 {
 191         struct newtExitStruct es;
 192         newtComponent tb, form = newt_form__new();
 193         int rc = -1;
 194         int max_len = 0, nr_lines = 0;
 195         const char *t;
 196
 197         if (form == NULL)
 198                 return -1;
 199
 200         t = text;
 201         while (1) {
 202                 const char *sep = strchr(t, '\n');
 203                 int len;
 204
 205                 if (sep == NULL)
 206                         sep = strchr(t, '\0');
 207                 len = sep - t;
 208                 if (max_len < len)
 209                         max_len = len;
 210                 ++nr_lines;
 211                 if (*sep == '\0')
 212                         break;
 213                 t = sep + 1;
 214         }
 215
 216         tb = newtTextbox(0, 0, max_len, nr_lines, 0);
 217         if (tb == NULL)
 218                 goto out_destroy_form;
 219
 220         newtTextboxSetText(tb, text);
 221         newtFormAddComponent(form, tb);
 222         newtCenteredWindow(max_len, nr_lines, NULL);
 223         newtFormRun(form, &es);
 224         newtPopWindow();
 225         rc = 0;
 226 out_destroy_form:
 227         newtFormDestroy(form);
 228         return rc;
 229 }
 230
 231 static bool dialog_yesno(const char *msg)
 232 {
 233         /* newtWinChoice should really be accepting const char pointers... */
 234         char yes[] = "Yes", no[] = "No";
 235         return newtWinChoice(NULL, yes, no, (char *)msg) == 1;
 236 }
 237
 238 #define HE_COLORSET_TOP         50
 239 #define HE_COLORSET_MEDIUM      51
 240 #define HE_COLORSET_NORMAL      52
 241 #define HE_COLORSET_SELECTED    53
 242 #define HE_COLORSET_CODE        54
 243
 244 static int ui_browser__percent_color(double percent, bool current)
 245 {
 246         if (current)
 247                 return HE_COLORSET_SELECTED;
 248         if (percent >= MIN_RED)
 249                 return HE_COLORSET_TOP;
 250         if (percent >= MIN_GREEN)
 251                 return HE_COLORSET_MEDIUM;
 252         return HE_COLORSET_NORMAL;
 253 }
 254
 255 struct ui_browser {
 256         newtComponent   form, sb;
 257         u64             index, first_visible_entry_idx;
 258         void            *first_visible_entry, *entries;
 259         u16             top, left, width, height;
 260         void            *priv;
 261         u32             nr_entries;
 262 };
 263
 264 static void ui_browser__refresh_dimensions(struct ui_browser *self)
 265 {
 266         int cols, rows;
 267         newtGetScreenSize(&cols, &rows);
 268
 269         if (self->width > cols - 4)
 270                 self->width = cols - 4;
 271         self->height = rows - 5;
 272         if (self->height > self->nr_entries)
 273                 self->height = self->nr_entries;
 274         self->top  = (rows - self->height) / 2;
 275         self->left = (cols - self->width) / 2;
 276 }
 277
 278 static void ui_browser__reset_index(struct ui_browser *self)
 279 {
 280         self->index = self->first_visible_entry_idx = 0;
 281         self->first_visible_entry = NULL;
 282 }
 283
 284 static int objdump_line__show(struct objdump_line *self, struct list_head *head,
 285                               int width, struct hist_entry *he, int len,
 286                               bool current_entry)
 287 {
 288         if (self->offset != -1) {
 289                 struct symbol *sym = he->ms.sym;
 290                 unsigned int hits = 0;
 291                 double percent = 0.0;
 292                 int color;
 293                 struct sym_priv *priv = symbol__priv(sym);
 294                 struct sym_ext *sym_ext = priv->ext;
 295                 struct sym_hist *h = priv->hist;
 296                 s64 offset = self->offset;
 297                 struct objdump_line *next = objdump__get_next_ip_line(head, self);
 298
 299                 while (offset < (s64)len &&
 300                        (next == NULL || offset < next->offset)) {
 301                         if (sym_ext) {
 302                                 percent += sym_ext[offset].percent;
 303                         } else
 304                                 hits += h->ip[offset];
 305
 306                         ++offset;
 307                 }
 308
 309                 if (sym_ext == NULL && h->sum)
 310                         percent = 100.0 * hits / h->sum;
 311
 312                 color = ui_browser__percent_color(percent, current_entry);
 313                 SLsmg_set_color(color);
 314                 slsmg_printf(" %7.2f ", percent);
 315                 if (!current_entry)
 316                         SLsmg_set_color(HE_COLORSET_CODE);
 317         } else {
 318                 int color = ui_browser__percent_color(0, current_entry);
 319                 SLsmg_set_color(color);
 320                 slsmg_write_nstring(" ", 9);
 321         }
 322
 323         SLsmg_write_char(':');
 324         slsmg_write_nstring(" ", 8);
 325         if (!*self->line)
 326                 slsmg_write_nstring(" ", width - 18);
 327         else
 328                 slsmg_write_nstring(self->line, width - 18);
 329
 330         return 0;
 331 }
 332
 333 static int ui_browser__refresh_entries(struct ui_browser *self)
 334 {
 335         struct objdump_line *pos;
 336         struct list_head *head = self->entries;
 337         struct hist_entry *he = self->priv;
 338         int row = 0;
 339         int len = he->ms.sym->end - he->ms.sym->start;
 340
 341         if (self->first_visible_entry == NULL || self->first_visible_entry == self->entries)
 342                 self->first_visible_entry = head->next;
 343
 344         pos = list_entry(self->first_visible_entry, struct objdump_line, node);
 345
 346         list_for_each_entry_from(pos, head, node) {
 347                 bool current_entry = (self->first_visible_entry_idx + row) == self->index;
 348                 SLsmg_gotorc(self->top + row, self->left);
 349                 objdump_line__show(pos, head, self->width,
 350                                    he, len, current_entry);
 351                 if (++row == self->height)
 352                         break;
 353         }
 354
 355         SLsmg_set_color(HE_COLORSET_NORMAL);
 356         SLsmg_fill_region(self->top + row, self->left,
 357                           self->height - row, self->width, ' ');
 358
 359         return 0;
 360 }
 361
 362 static int ui_browser__run(struct ui_browser *self, const char *title,
 363                            struct newtExitStruct *es)
 364 {
 365         if (self->form) {
 366                 newtFormDestroy(self->form);
 367                 newtPopWindow();
 368         }
 369
 370         ui_browser__refresh_dimensions(self);
 371         newtCenteredWindow(self->width + 2, self->height, title);
 372         self->form = newt_form__new();
 373         if (self->form == NULL)
 374                 return -1;
 375
 376         self->sb = newtVerticalScrollbar(self->width + 1, 0, self->height,
 377                                          HE_COLORSET_NORMAL,
 378                                          HE_COLORSET_SELECTED);
 379         if (self->sb == NULL)
 380                 return -1;
 381
 382         newtFormAddHotKey(self->form, NEWT_KEY_UP);
 383         newtFormAddHotKey(self->form, NEWT_KEY_DOWN);
 384         newtFormAddHotKey(self->form, NEWT_KEY_PGUP);
 385         newtFormAddHotKey(self->form, NEWT_KEY_PGDN);
 386         newtFormAddHotKey(self->form, NEWT_KEY_HOME);
 387         newtFormAddHotKey(self->form, NEWT_KEY_END);
 388
 389         if (ui_browser__refresh_entries(self) < 0)
 390                 return -1;
 391         newtFormAddComponent(self->form, self->sb);
 392
 393         while (1) {
 394                 unsigned int offset;
 395
 396                 newtFormRun(self->form, es);
 397
 398                 if (es->reason != NEWT_EXIT_HOTKEY)
 399                         break;
 400                 switch (es->u.key) {
 401                 case NEWT_KEY_DOWN:
 402                         if (self->index == self->nr_entries - 1)
 403                                 break;
 404                         ++self->index;
 405                         if (self->index == self->first_visible_entry_idx + self->height) {
 406                                 struct list_head *pos = self->first_visible_entry;
 407                                 ++self->first_visible_entry_idx;
 408                                 self->first_visible_entry = pos->next;
 409                         }
 410                         break;
 411                 case NEWT_KEY_UP:
 412                         if (self->index == 0)
 413                                 break;
 414                         --self->index;
 415                         if (self->index < self->first_visible_entry_idx) {
 416                                 struct list_head *pos = self->first_visible_entry;
 417                                 --self->first_visible_entry_idx;
 418                                 self->first_visible_entry = pos->prev;
 419                         }
 420                         break;
 421                 case NEWT_KEY_PGDN:
 422                         if (self->first_visible_entry_idx + self->height > self->nr_entries - 1)
 423                                 break;
 424
 425                         offset = self->height;
 426                         if (self->index + offset > self->nr_entries - 1)
 427                                 offset = self->nr_entries - 1 - self->index;
 428                         self->index += offset;
 429                         self->first_visible_entry_idx += offset;
 430
 431                         while (offset--) {
 432                                 struct list_head *pos = self->first_visible_entry;
 433                                 self->first_visible_entry = pos->next;
 434                         }
 435
 436                         break;
 437                 case NEWT_KEY_PGUP:
 438                         if (self->first_visible_entry_idx == 0)
 439                                 break;
 440
 441                         if (self->first_visible_entry_idx < self->height)
 442                                 offset = self->first_visible_entry_idx;
 443                         else
 444                                 offset = self->height;
 445
 446                         self->index -= offset;
 447                         self->first_visible_entry_idx -= offset;
 448
 449                         while (offset--) {
 450                                 struct list_head *pos = self->first_visible_entry;
 451                                 self->first_visible_entry = pos->prev;
 452                         }
 453                         break;
 454                 case NEWT_KEY_HOME:
 455                         ui_browser__reset_index(self);
 456                         break;
 457                 case NEWT_KEY_END: {
 458                         struct list_head *head = self->entries;
 459                         offset = self->height - 1;
 460
 461                         if (offset > self->nr_entries)
 462                                 offset = self->nr_entries;
 463
 464                         self->index = self->first_visible_entry_idx = self->nr_entries - 1 - offset;
 465                         self->first_visible_entry = head->prev;
 466                         while (offset-- != 0) {
 467                                 struct list_head *pos = self->first_visible_entry;
 468                                 self->first_visible_entry = pos->prev;
 469                         }
 470                 }
 471                         break;
 472                 case NEWT_KEY_ESCAPE:
 473                 case NEWT_KEY_LEFT:
 474                 case CTRL('c'):
 475                 case 'Q':
 476                 case 'q':
 477                         return 0;
 478                 default:
 479                         continue;
 480                 }
 481                 if (ui_browser__refresh_entries(self) < 0)
 482                         return -1;
 483         }
 484         return 0;
 485 }
 486
 487 /*
 488  * When debugging newt problems it was useful to be able to "unroll"
 489  * the calls to newtCheckBoxTreeAdd{Array,Item}, so that we can generate
 490  * a source file with the sequence of calls to these methods, to then
 491  * tweak the arrays to get the intended results, so I'm keeping this code
 492  * here, may be useful again in the future.
 493  */
 494 #undef NEWT_DEBUG
 495
 496 static void newt_checkbox_tree__add(newtComponent tree, const char *str,
 497                                     void *priv, int *indexes)
 498 {
 499 #ifdef NEWT_DEBUG
 500         /* Print the newtCheckboxTreeAddArray to tinker with its index arrays */
 501         int i = 0, len = 40 - strlen(str);
 502
 503         fprintf(stderr,
 504                 "\tnewtCheckboxTreeAddItem(tree, %*.*s\"%s\", (void *)%p, 0, ",
 505                 len, len, " ", str, priv);
 506         while (indexes[i] != NEWT_ARG_LAST) {
 507                 if (indexes[i] != NEWT_ARG_APPEND)
 508                         fprintf(stderr, " %d,", indexes[i]);
 509                 else
 510                         fprintf(stderr, " %s,", "NEWT_ARG_APPEND");
 511                 ++i;
 512         }
 513         fprintf(stderr, " %s", " NEWT_ARG_LAST);\n");
 514         fflush(stderr);
 515 #endif
 516         newtCheckboxTreeAddArray(tree, str, priv, 0, indexes);
 517 }
 518
 519 static char *callchain_list__sym_name(struct callchain_list *self,
 520                                       char *bf, size_t bfsize)
 521 {
 522         if (self->ms.sym)
 523                 return self->ms.sym->name;
 524
 525         snprintf(bf, bfsize, "%#Lx", self->ip);
 526         return bf;
 527 }
 528
 529 static void __callchain__append_graph_browser(struct callchain_node *self,
 530                                               newtComponent tree, u64 total,
 531                                               int *indexes, int depth)
 532 {
 533         struct rb_node *node;
 534         u64 new_total, remaining;
 535         int idx = 0;
 536
 537         if (callchain_param.mode == CHAIN_GRAPH_REL)
 538                 new_total = self->children_hit;
 539         else
 540                 new_total = total;
 541
 542         remaining = new_total;
 543         node = rb_first(&self->rb_root);
 544         while (node) {
 545                 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
 546                 struct rb_node *next = rb_next(node);
 547                 u64 cumul = cumul_hits(child);
 548                 struct callchain_list *chain;
 549                 int first = true, printed = 0;
 550                 int chain_idx = -1;
 551                 remaining -= cumul;
 552
 553                 indexes[depth] = NEWT_ARG_APPEND;
 554                 indexes[depth + 1] = NEWT_ARG_LAST;
 555
 556                 list_for_each_entry(chain, &child->val, list) {
 557                         char ipstr[BITS_PER_LONG / 4 + 1],
 558                              *alloc_str = NULL;
 559                         const char *str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
 560
 561                         if (first) {
 562                                 double percent = cumul * 100.0 / new_total;
 563
 564                                 first = false;
 565                                 if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
 566                                         str = "Not enough memory!";
 567                                 else
 568                                         str = alloc_str;
 569                         } else {
 570                                 indexes[depth] = idx;
 571                                 indexes[depth + 1] = NEWT_ARG_APPEND;
 572                                 indexes[depth + 2] = NEWT_ARG_LAST;
 573                                 ++chain_idx;
 574                         }
 575                         newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
 576                         free(alloc_str);
 577                         ++printed;
 578                 }
 579
 580                 indexes[depth] = idx;
 581                 if (chain_idx != -1)
 582                         indexes[depth + 1] = chain_idx;
 583                 if (printed != 0)
 584                         ++idx;
 585                 __callchain__append_graph_browser(child, tree, new_total, indexes,
 586                                                   depth + (chain_idx != -1 ? 2 : 1));
 587                 node = next;
 588         }
 589 }
 590
 591 static void callchain__append_graph_browser(struct callchain_node *self,
 592                                             newtComponent tree, u64 total,
 593                                             int *indexes, int parent_idx)
 594 {
 595         struct callchain_list *chain;
 596         int i = 0;
 597
 598         indexes[1] = NEWT_ARG_APPEND;
 599         indexes[2] = NEWT_ARG_LAST;
 600
 601         list_for_each_entry(chain, &self->val, list) {
 602                 char ipstr[BITS_PER_LONG / 4 + 1], *str;
 603
 604                 if (chain->ip >= PERF_CONTEXT_MAX)
 605                         continue;
 606
 607                 if (!i++ && sort__first_dimension == SORT_SYM)
 608                         continue;
 609
 610                 str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
 611                 newt_checkbox_tree__add(tree, str, &chain->ms, indexes);
 612         }
 613
 614         indexes[1] = parent_idx;
 615         indexes[2] = NEWT_ARG_APPEND;
 616         indexes[3] = NEWT_ARG_LAST;
 617         __callchain__append_graph_browser(self, tree, total, indexes, 2);
 618 }
 619
 620 static void hist_entry__append_callchain_browser(struct hist_entry *self,
 621                                                  newtComponent tree, u64 total, int parent_idx)
 622 {
 623         struct rb_node *rb_node;
 624         int indexes[1024] = { [0] = parent_idx, };
 625         int idx = 0;
 626         struct callchain_node *chain;
 627
 628         rb_node = rb_first(&self->sorted_chain);
 629         while (rb_node) {
 630                 chain = rb_entry(rb_node, struct callchain_node, rb_node);
 631                 switch (callchain_param.mode) {
 632                 case CHAIN_FLAT:
 633                         break;
 634                 case CHAIN_GRAPH_ABS: /* falldown */
 635                 case CHAIN_GRAPH_REL:
 636                         callchain__append_graph_browser(chain, tree, total, indexes, idx++);
 637                         break;
 638                 case CHAIN_NONE:
 639                 default:
 640                         break;
 641                 }
 642                 rb_node = rb_next(rb_node);
 643         }
 644 }
 645
 646 static size_t hist_entry__append_browser(struct hist_entry *self,
 647                                          newtComponent tree, u64 total)
 648 {
 649         char s[256];
 650         size_t ret;
 651
 652         if (symbol_conf.exclude_other && !self->parent)
 653                 return 0;
 654
 655         ret = hist_entry__snprintf(self, s, sizeof(s), NULL,
 656                                    false, 0, false, total);
 657         if (symbol_conf.use_callchain) {
 658                 int indexes[2];
 659
 660                 indexes[0] = NEWT_ARG_APPEND;
 661                 indexes[1] = NEWT_ARG_LAST;
 662                 newt_checkbox_tree__add(tree, s, &self->ms, indexes);
 663         } else
 664                 newtListboxAppendEntry(tree, s, &self->ms);
 665
 666         return ret;
 667 }
 668
 669 static void hist_entry__annotate_browser(struct hist_entry *self)
 670 {
 671         struct ui_browser browser;
 672         struct newtExitStruct es;
 673         struct objdump_line *pos, *n;
 674         LIST_HEAD(head);
 675
 676         if (self->ms.sym == NULL)
 677                 return;
 678
 679         if (hist_entry__annotate(self, &head) < 0)
 680                 return;
 681
 682         ui_helpline__push("Press <- or ESC to exit");
 683
 684         memset(&browser, 0, sizeof(browser));
 685         browser.entries = &head;
 686         browser.priv = self;
 687         list_for_each_entry(pos, &head, node) {
 688                 size_t line_len = strlen(pos->line);
 689                 if (browser.width < line_len)
 690                         browser.width = line_len;
 691                 ++browser.nr_entries;
 692         }
 693
 694         browser.width += 18; /* Percentage */
 695         ui_browser__run(&browser, self->ms.sym->name, &es);
 696         newtFormDestroy(browser.form);
 697         newtPopWindow();
 698         list_for_each_entry_safe(pos, n, &head, node) {
 699                 list_del(&pos->node);
 700                 objdump_line__free(pos);
 701         }
 702         ui_helpline__pop();
 703 }
 704
 705 static const void *newt__symbol_tree_get_current(newtComponent self)
 706 {
 707         if (symbol_conf.use_callchain)
 708                 return newtCheckboxTreeGetCurrent(self);
 709         return newtListboxGetCurrent(self);
 710 }
 711
 712 static void hist_browser__selection(newtComponent self, void *data)
 713 {
 714         const struct map_symbol **symbol_ptr = data;
 715         *symbol_ptr = newt__symbol_tree_get_current(self);
 716 }
 717
 718 struct hist_browser {
 719         newtComponent           form, tree;
 720         const struct map_symbol *selection;
 721 };
 722
 723 static struct hist_browser *hist_browser__new(void)
 724 {
 725         struct hist_browser *self = malloc(sizeof(*self));
 726
 727         if (self != NULL)
 728                 self->form = NULL;
 729
 730         return self;
 731 }
 732
 733 static void hist_browser__delete(struct hist_browser *self)
 734 {
 735         newtFormDestroy(self->form);
 736         newtPopWindow();
 737         free(self);
 738 }
 739
 740 static int hist_browser__populate(struct hist_browser *self, struct hists *hists,
 741                                   const char *title)
 742 {
 743         int max_len = 0, idx, cols, rows;
 744         struct ui_progress *progress;
 745         struct rb_node *nd;
 746         u64 curr_hist = 0;
 747         char seq[] = ".", unit;
 748         char str[256];
 749         unsigned long nr_events = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 750
 751         if (self->form) {
 752                 newtFormDestroy(self->form);
 753                 newtPopWindow();
 754         }
 755
 756         nr_events = convert_unit(nr_events, &unit);
 757         snprintf(str, sizeof(str), "Events: %lu%c                            ",
 758                  nr_events, unit);
 759         newtDrawRootText(0, 0, str);
 760
 761         newtGetScreenSize(NULL, &rows);
 762
 763         if (symbol_conf.use_callchain)
 764                 self->tree = newtCheckboxTreeMulti(0, 0, rows - 5, seq,
 765                                                    NEWT_FLAG_SCROLL);
 766         else
 767                 self->tree = newtListbox(0, 0, rows - 5,
 768                                         (NEWT_FLAG_SCROLL |
 769                                          NEWT_FLAG_RETURNEXIT));
 770
 771         newtComponentAddCallback(self->tree, hist_browser__selection,
 772                                  &self->selection);
 773
 774         progress = ui_progress__new("Adding entries to the browser...",
 775                                     hists->nr_entries);
 776         if (progress == NULL)
 777                 return -1;
 778
 779         idx = 0;
 780         for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
 781                 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 782                 int len;
 783
 784                 if (h->filtered)
 785                         continue;
 786
 787                 len = hist_entry__append_browser(h, self->tree, hists->stats.total_period);
 788                 if (len > max_len)
 789                         max_len = len;
 790                 if (symbol_conf.use_callchain)
 791                         hist_entry__append_callchain_browser(h, self->tree,
 792                                                              hists->stats.total_period, idx++);
 793                 ++curr_hist;
 794                 if (curr_hist % 5)
 795                         ui_progress__update(progress, curr_hist);
 796         }
 797
 798         ui_progress__delete(progress);
 799
 800         newtGetScreenSize(&cols, &rows);
 801
 802         if (max_len > cols)
 803                 max_len = cols - 3;
 804
 805         if (!symbol_conf.use_callchain)
 806                 newtListboxSetWidth(self->tree, max_len);
 807
 808         newtCenteredWindow(max_len + (symbol_conf.use_callchain ? 5 : 0),
 809                            rows - 5, title);
 810         self->form = newt_form__new();
 811         if (self->form == NULL)
 812                 return -1;
 813
 814         newtFormAddHotKey(self->form, 'A');
 815         newtFormAddHotKey(self->form, 'a');
 816         newtFormAddHotKey(self->form, 'D');
 817         newtFormAddHotKey(self->form, 'd');
 818         newtFormAddHotKey(self->form, 'T');
 819         newtFormAddHotKey(self->form, 't');
 820         newtFormAddHotKey(self->form, '?');
 821         newtFormAddHotKey(self->form, 'H');
 822         newtFormAddHotKey(self->form, 'h');
 823         newtFormAddHotKey(self->form, NEWT_KEY_F1);
 824         newtFormAddHotKey(self->form, NEWT_KEY_RIGHT);
 825         newtFormAddComponents(self->form, self->tree, NULL);
 826         self->selection = newt__symbol_tree_get_current(self->tree);
 827
 828         return 0;
 829 }
 830
 831 static struct hist_entry *hist_browser__selected_entry(struct hist_browser *self)
 832 {
 833         int *indexes;
 834
 835         if (!symbol_conf.use_callchain)
 836                 goto out;
 837
 838         indexes = newtCheckboxTreeFindItem(self->tree, (void *)self->selection);
 839         if (indexes) {
 840                 bool is_hist_entry = indexes[1] == NEWT_ARG_LAST;
 841                 free(indexes);
 842                 if (is_hist_entry)
 843                         goto out;
 844         }
 845         return NULL;
 846 out:
 847         return container_of(self->selection, struct hist_entry, ms);
 848 }
 849
 850 static struct thread *hist_browser__selected_thread(struct hist_browser *self)
 851 {
 852         struct hist_entry *he = hist_browser__selected_entry(self);
 853         return he ? he->thread : NULL;
 854 }
 855
 856 static int hist_browser__title(char *bf, size_t size, const char *input_name,
 857                                const struct dso *dso, const struct thread *thread)
 858 {
 859         int printed = 0;
 860
 861         if (thread)
 862                 printed += snprintf(bf + printed, size - printed,
 863                                     "Thread: %s(%d)",
 864                                     (thread->comm_set ?  thread->comm : ""),
 865                                     thread->pid);
 866         if (dso)
 867                 printed += snprintf(bf + printed, size - printed,
 868                                     "%sDSO: %s", thread ? " " : "",
 869                                     dso->short_name);
 870         return printed ?: snprintf(bf, size, "Report: %s", input_name);
 871 }
 872
 873 int hists__browse(struct hists *self, const char *helpline, const char *input_name)
 874 {
 875         struct hist_browser *browser = hist_browser__new();
 876         struct pstack *fstack = pstack__new(2);
 877         const struct thread *thread_filter = NULL;
 878         const struct dso *dso_filter = NULL;
 879         struct newtExitStruct es;
 880         char msg[160];
 881         int err = -1;
 882
 883         if (browser == NULL)
 884                 return -1;
 885
 886         fstack = pstack__new(2);
 887         if (fstack == NULL)
 888                 goto out;
 889
 890         ui_helpline__push(helpline);
 891
 892         hist_browser__title(msg, sizeof(msg), input_name,
 893                             dso_filter, thread_filter);
 894         if (hist_browser__populate(browser, self, msg) < 0)
 895                 goto out_free_stack;
 896
 897         while (1) {
 898                 const struct thread *thread;
 899                 const struct dso *dso;
 900                 char *options[16];
 901                 int nr_options = 0, choice = 0, i,
 902                     annotate = -2, zoom_dso = -2, zoom_thread = -2;
 903
 904                 newtFormRun(browser->form, &es);
 905
 906                 thread = hist_browser__selected_thread(browser);
 907                 dso = browser->selection->map ? browser->selection->map->dso : NULL;
 908
 909                 if (es.reason == NEWT_EXIT_HOTKEY) {
 910                         if (es.u.key == NEWT_KEY_F1)
 911                                 goto do_help;
 912
 913                         switch (toupper(es.u.key)) {
 914                         case 'A':
 915                                 goto do_annotate;
 916                         case 'D':
 917                                 goto zoom_dso;
 918                         case 'T':
 919                                 goto zoom_thread;
 920                         case 'H':
 921                         case '?':
 922 do_help:
 923                                 ui__help_window("->        Zoom into DSO/Threads & Annotate current symbol\n"
 924                                                 "<-        Zoom out\n"
 925                                                 "a         Annotate current symbol\n"
 926                                                 "h/?/F1    Show this window\n"
 927                                                 "d         Zoom into current DSO\n"
 928                                                 "t         Zoom into current Thread\n"
 929                                                 "q/CTRL+C  Exit browser");
 930                                 continue;
 931                         default:;
 932                         }
 933                         if (toupper(es.u.key) == 'Q' ||
 934                             es.u.key == CTRL('c'))
 935                                 break;
 936                         if (es.u.key == NEWT_KEY_ESCAPE) {
 937                                 if (dialog_yesno("Do you really want to exit?"))
 938                                         break;
 939                                 else
 940                                         continue;
 941                         }
 942
 943                         if (es.u.key == NEWT_KEY_LEFT) {
 944                                 const void *top;
 945
 946                                 if (pstack__empty(fstack))
 947                                         continue;
 948                                 top = pstack__pop(fstack);
 949                                 if (top == &dso_filter)
 950                                         goto zoom_out_dso;
 951                                 if (top == &thread_filter)
 952                                         goto zoom_out_thread;
 953                                 continue;
 954                         }
 955                 }
 956
 957                 if (browser->selection->sym != NULL &&
 958                     asprintf(&options[nr_options], "Annotate %s",
 959                              browser->selection->sym->name) > 0)
 960                         annotate = nr_options++;
 961
 962                 if (thread != NULL &&
 963                     asprintf(&options[nr_options], "Zoom %s %s(%d) thread",
 964                              (thread_filter ? "out of" : "into"),
 965                              (thread->comm_set ? thread->comm : ""),
 966                              thread->pid) > 0)
 967                         zoom_thread = nr_options++;
 968
 969                 if (dso != NULL &&
 970                     asprintf(&options[nr_options], "Zoom %s %s DSO",
 971                              (dso_filter ? "out of" : "into"),
 972                              (dso->kernel ? "the Kernel" : dso->short_name)) > 0)
 973                         zoom_dso = nr_options++;
 974
 975                 options[nr_options++] = (char *)"Exit";
 976
 977                 choice = popup_menu(nr_options, options);
 978
 979                 for (i = 0; i < nr_options - 1; ++i)
 980                         free(options[i]);
 981
 982                 if (choice == nr_options - 1)
 983                         break;
 984
 985                 if (choice == -1)
 986                         continue;
 987
 988                 if (choice == annotate) {
 989                         struct hist_entry *he;
 990 do_annotate:
 991                         if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) {
 992                                 ui_helpline__puts("No vmlinux file found, can't "
 993                                                  "annotate with just a "
 994                                                  "kallsyms file");
 995                                 continue;
 996                         }
 997
 998                         he = hist_browser__selected_entry(browser);
 999                         if (he == NULL)
1000                                 continue;
1001
1002                         hist_entry__annotate_browser(he);
1003                 } else if (choice == zoom_dso) {
1004 zoom_dso:
1005                         if (dso_filter) {
1006                                 pstack__remove(fstack, &dso_filter);
1007 zoom_out_dso:
1008                                 ui_helpline__pop();
1009                                 dso_filter = NULL;
1010                         } else {
1011                                 if (dso == NULL)
1012                                         continue;
1013                                 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
1014                                                    dso->kernel ? "the Kernel" : dso->short_name);
1015                                 dso_filter = dso;
1016                                 pstack__push(fstack, &dso_filter);
1017                         }
1018                         hists__filter_by_dso(self, dso_filter);
1019                         hist_browser__title(msg, sizeof(msg), input_name,
1020                                             dso_filter, thread_filter);
1021                         if (hist_browser__populate(browser, self, msg) < 0)
1022                                 goto out;
1023                 } else if (choice == zoom_thread) {
1024 zoom_thread:
1025                         if (thread_filter) {
1026                                 pstack__remove(fstack, &thread_filter);
1027 zoom_out_thread:
1028                                 ui_helpline__pop();
1029                                 thread_filter = NULL;
1030                         } else {
1031                                 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
1032                                                    thread->comm_set ? thread->comm : "",
1033                                                    thread->pid);
1034                                 thread_filter = thread;
1035                                 pstack__push(fstack, &thread_filter);
1036                         }
1037                         hists__filter_by_thread(self, thread_filter);
1038                         hist_browser__title(msg, sizeof(msg), input_name,
1039                                             dso_filter, thread_filter);
1040                         if (hist_browser__populate(browser, self, msg) < 0)
1041                                 goto out;
1042                 }
1043         }
1044         err = 0;
1045 out_free_stack:
1046         pstack__delete(fstack);
1047 out:
1048         hist_browser__delete(browser);
1049         return err;
1050 }
1051
1052 static struct newtPercentTreeColors {
1053         const char *topColorFg, *topColorBg;
1054         const char *mediumColorFg, *mediumColorBg;
1055         const char *normalColorFg, *normalColorBg;
1056         const char *selColorFg, *selColorBg;
1057         const char *codeColorFg, *codeColorBg;
1058 } defaultPercentTreeColors = {
1059         "red",       "lightgray",
1060         "green",     "lightgray",
1061         "black",     "lightgray",
1062         "lightgray", "magenta",
1063         "blue",      "lightgray",
1064 };
1065
1066 void setup_browser(void)
1067 {
1068         struct newtPercentTreeColors *c = &defaultPercentTreeColors;
1069
1070         if (!isatty(1) || !use_browser) {
1071                 setup_pager();
1072                 return;
1073         }
1074
1075         use_browser = 1;
1076         newtInit();
1077         newtCls();
1078         ui_helpline__puts(" ");
1079         sltt_set_color(HE_COLORSET_TOP, NULL, c->topColorFg, c->topColorBg);
1080         sltt_set_color(HE_COLORSET_MEDIUM, NULL, c->mediumColorFg, c->mediumColorBg);
1081         sltt_set_color(HE_COLORSET_NORMAL, NULL, c->normalColorFg, c->normalColorBg);
1082         sltt_set_color(HE_COLORSET_SELECTED, NULL, c->selColorFg, c->selColorBg);
1083         sltt_set_color(HE_COLORSET_CODE, NULL, c->codeColorFg, c->codeColorBg);
1084 }
1085
1086 void exit_browser(bool wait_for_ok)
1087 {
1088         if (use_browser > 0) {
1089                 if (wait_for_ok) {
1090                         char title[] = "Fatal Error", ok[] = "Ok";
1091                         newtWinMessage(title, ok, browser__last_msg);
1092                 }
1093                 newtFinished();
1094         }
1095 }