tools/perf/ui/browsers/map.c

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