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