tools/perf/ui/browsers/map.c

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