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