1 // SPDX-License-Identifier: GPL-2.0
2 #include <elf.h>
3 #include <inttypes.h>
4 #include <sys/ttydefaults.h>
5 #include <stdlib.h>
6 #include <string.h>
7 #include <linux/bitops.h>
8 #include "../../util/debug.h"
9 #include "../../util/map.h"
10 #include "../../util/dso.h"
11 #include "../../util/symbol.h"
12 #include "../browser.h"
13 #include "../helpline.h"
14 #include "../keysyms.h"
15 #include "map.h"
16
17 #include <linux/ctype.h>
18
19 struct map_browser {
20 struct ui_browser b;
21 struct map *map;
22 u8 addrlen;
23 };
24
25 static void map_browser__write(struct ui_browser *browser, void *nd, int row)
26 {
27 struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
28 struct map_browser *mb = container_of(browser, struct map_browser, b);
29 bool current_entry = ui_browser__is_current_entry(browser, row);
30 int width;
31
32 ui_browser__set_percent_color(browser, 0, current_entry);
33 ui_browser__printf(browser, "%*" PRIx64 " %*" PRIx64 " %c ",
34 mb->addrlen, sym->start, mb->addrlen, sym->end,
35 sym->binding == STB_GLOBAL ? 'g' :
36 sym->binding == STB_LOCAL ? 'l' : 'w');
37 width = browser->width - ((mb->addrlen * 2) + 4);
38 if (width > 0)
39 ui_browser__write_nstring(browser, sym->name, width);
40 }
41
42 /* FIXME uber-kludgy, see comment on cmd_report... */
43 static u32 *symbol__browser_index(struct symbol *browser)
44 {
45 return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
46 }
47
48 static int map_browser__search(struct map_browser *browser)
49 {
50 char target[512];
51 struct symbol *sym;
52 int err = ui_browser__input_window("Search by name/addr",
53 "Prefix with 0x to search by address",
54 target, "ENTER: OK, ESC: Cancel", 0);
55 if (err != K_ENTER)
56 return -1;
57
58 if (target[0] == '' && tolower(target[1]) == 'x') {
59 u64 addr = strtoull(target, NULL, 16);
60 sym = map__find_symbol(browser->map, addr);
61 } else
62 sym = map__find_symbol_by_name(browser->map, target);
63
64 if (sym != NULL) {
65 u32 *idx = symbol__browser_index(sym);
66
67 browser->b.top = &sym->rb_node;
68 browser->b.index = browser->b.top_idx = *idx;
69 } else
70 ui_helpline__fpush("%s not found!", target);
71
72 return 0;
73 }
74
75 static int map_browser__run(struct map_browser *browser)
76 {
77 int key;
78
79 if (ui_browser__show(&browser->b, dso__long_name(map__dso(browser->map)),
80 "Press ESC to exit, %s / to search",
81 verbose > 0 ? "" : "restart with -v to use") < 0)
82 return -1;
83
84 while (1) {
85 key = ui_browser__run(&browser->b, 0);
86
87 switch (key) {
88 case '/':
89 if (verbose > 0)
90 map_browser__search(browser);
91 default:
92 break;
93 case K_LEFT:
94 case K_ESC:
95 case 'q':
96 case CTRL('c'):
97 goto out;
98 }
99 }
100 out:
101 ui_browser__hide(&browser->b);
102 return key;
103 }
104
105 int map__browse(struct map *map)
106 {
107 struct map_browser mb = {
108 .b = {
109 .entries = dso__symbols(map__dso(map)),
110 .refresh = ui_browser__rb_tree_refresh,
111 .seek = ui_browser__rb_tree_seek,
112 .write = map_browser__write,
113 },
114 .map = map,
115 };
116 struct rb_node *nd;
117 char tmp[BITS_PER_LONG / 4];
118 u64 maxaddr = 0;
119
120 for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) {
121 struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
122
123 if (maxaddr < pos->end)
124 maxaddr = pos->end;
125 if (verbose > 0) {
126 u32 *idx = symbol__browser_index(pos);
127 *idx = mb.b.nr_entries;
128 }
129 ++mb.b.nr_entries;
130 }
131
132 mb.addrlen = snprintf(tmp, sizeof(tmp), "%" PRIx64, maxaddr);
133 return map_browser__run(&mb);
134 }
135
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