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
15struct map_browser {
16	struct ui_browser b;
17	struct map	  *map;
18	u8		  addrlen;
19};
20
21static 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... */
39static u32 *symbol__browser_index(struct symbol *browser)
40{
41	return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
42}
43
44static 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
71static 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	}
96out:
97	ui_browser__hide(&browser->b);
98	return key;
99}
100
101int 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}
131