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      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 *self, void *nd, int row)
     22 {
     23 	struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
     24 	struct map_browser *mb = container_of(self, struct map_browser, b);
     25 	bool current_entry = ui_browser__is_current_entry(self, row);
     26 	int width;
     27 
     28 	ui_browser__set_percent_color(self, 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 = self->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 *self)
     40 {
     41 	return ((void *)self) - sizeof(struct rb_node) - sizeof(u32);
     42 }
     43 
     44 static int map_browser__search(struct map_browser *self)
     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(self->map, addr, NULL);
     57 	} else
     58 		sym = map__find_symbol_by_name(self->map, target, NULL);
     59 
     60 	if (sym != NULL) {
     61 		u32 *idx = symbol__browser_index(sym);
     62 
     63 		self->b.top = &sym->rb_node;
     64 		self->b.index = self->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 *self)
     72 {
     73 	int key;
     74 
     75 	if (ui_browser__show(&self->b, self->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(&self->b, 0);
     82 
     83 		switch (key) {
     84 		case '/':
     85 			if (verbose)
     86 				map_browser__search(self);
     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(&self->b);
     98 	return key;
     99 }
    100 
    101 int map__browse(struct map *self)
    102 {
    103 	struct map_browser mb = {
    104 		.b = {
    105 			.entries = &self->dso->symbols[self->type],
    106 			.refresh = ui_browser__rb_tree_refresh,
    107 			.seek	 = ui_browser__rb_tree_seek,
    108 			.write	 = map_browser__write,
    109 		},
    110 		.map = self,
    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 }
    131