tools/perf/ui/browsers/map.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <elf.h>
   3 #include <inttypes.h>
   4 #include <sys/ttydefaults.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <linux/bitops.h>
   8 #include "../../util/debug.h"
   9 #include "../../util/map.h"
  10 #include "../../util/dso.h"
  11 #include "../../util/symbol.h"
  12 #include "../browser.h"
  13 #include "../helpline.h"
  14 #include "../keysyms.h"
  15 #include "map.h"
  16
  17 #include <linux/ctype.h>
  18
  19 struct map_browser {
  20         struct ui_browser b;
  21         struct map        *map;
  22         u8                addrlen;
  23 };
  24
  25 static void map_browser__write(struct ui_browser *browser, void *nd, int row)
  26 {
  27         struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
  28         struct map_browser *mb = container_of(browser, struct map_browser, b);
  29         bool current_entry = ui_browser__is_current_entry(browser, row);
  30         int width;
  31
  32         ui_browser__set_percent_color(browser, 0, current_entry);
  33         ui_browser__printf(browser, "%*" PRIx64 " %*" PRIx64 " %c ",
  34                            mb->addrlen, sym->start, mb->addrlen, sym->end,
  35                            sym->binding == STB_GLOBAL ? 'g' :
  36                                 sym->binding == STB_LOCAL  ? 'l' : 'w');
  37         width = browser->width - ((mb->addrlen * 2) + 4);
  38         if (width > 0)
  39                 ui_browser__write_nstring(browser, sym->name, width);
  40 }
  41
  42 /* FIXME uber-kludgy, see comment on cmd_report... */
  43 static u32 *symbol__browser_index(struct symbol *browser)
  44 {
  45         return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
  46 }
  47
  48 static int map_browser__search(struct map_browser *browser)
  49 {
  50         char target[512];
  51         struct symbol *sym;
  52         int err = ui_browser__input_window("Search by name/addr",
  53                                            "Prefix with 0x to search by address",
  54                                            target, "ENTER: OK, ESC: Cancel", 0);
  55         if (err != K_ENTER)
  56                 return -1;
  57
  58         if (target[0] == '0' && tolower(target[1]) == 'x') {
  59                 u64 addr = strtoull(target, NULL, 16);
  60                 sym = map__find_symbol(browser->map, addr);
  61         } else
  62                 sym = map__find_symbol_by_name(browser->map, target);
  63
  64         if (sym != NULL) {
  65                 u32 *idx = symbol__browser_index(sym);
  66
  67                 browser->b.top = &sym->rb_node;
  68                 browser->b.index = browser->b.top_idx = *idx;
  69         } else
  70                 ui_helpline__fpush("%s not found!", target);
  71
  72         return 0;
  73 }
  74
  75 static int map_browser__run(struct map_browser *browser)
  76 {
  77         int key;
  78
  79         if (ui_browser__show(&browser->b, browser->map->dso->long_name,
  80                              "Press ESC to exit, %s / to search",
  81                              verbose > 0 ? "" : "restart with -v to use") < 0)
  82                 return -1;
  83
  84         while (1) {
  85                 key = ui_browser__run(&browser->b, 0);
  86
  87                 switch (key) {
  88                 case '/':
  89                         if (verbose > 0)
  90                                 map_browser__search(browser);
  91                 default:
  92                         break;
  93                 case K_LEFT:
  94                 case K_ESC:
  95                 case 'q':
  96                 case CTRL('c'):
  97                         goto out;
  98                 }
  99         }
 100 out:
 101         ui_browser__hide(&browser->b);
 102         return key;
 103 }
 104
 105 int map__browse(struct map *map)
 106 {
 107         struct map_browser mb = {
 108                 .b = {
 109                         .entries = &map->dso->symbols,
 110                         .refresh = ui_browser__rb_tree_refresh,
 111                         .seek    = ui_browser__rb_tree_seek,
 112                         .write   = map_browser__write,
 113                 },
 114                 .map = map,
 115         };
 116         struct rb_node *nd;
 117         char tmp[BITS_PER_LONG / 4];
 118         u64 maxaddr = 0;
 119
 120         for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) {
 121                 struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
 122
 123                 if (maxaddr < pos->end)
 124                         maxaddr = pos->end;
 125                 if (verbose > 0) {
 126                         u32 *idx = symbol__browser_index(pos);
 127                         *idx = mb.b.nr_entries;
 128                 }
 129                 ++mb.b.nr_entries;
 130         }
 131
 132         mb.addrlen = snprintf(tmp, sizeof(tmp), "%" PRIx64, maxaddr);
 133         return map_browser__run(&mb);
 134 }