1#include "../libslang.h"
  2#include <elf.h>
  3#include <newt.h>
  4#include <inttypes.h>
  5#include <sys/ttydefaults.h>
  6#include <string.h>
  7#include <linux/bitops.h>
  8#include "../../util/util.h"
  9#include "../../util/debug.h"
 10#include "../../util/symbol.h"
 11#include "../browser.h"
 12#include "../helpline.h"
 13#include "map.h"
 14
 15static int ui_entry__read(const char *title, char *bf, size_t size, int width)
 16{
 17	struct newtExitStruct es;
 18	newtComponent form, entry;
 19	const char *result;
 20	int err = -1;
 21
 22	newtCenteredWindow(width, 1, title);
 23	form = newtForm(NULL, NULL, 0);
 24	if (form == NULL)
 25		return -1;
 26
 27	entry = newtEntry(0, 0, "0x", width, &result, NEWT_FLAG_SCROLL);
 28	if (entry == NULL)
 29		goto out_free_form;
 30
 31	newtFormAddComponent(form, entry);
 32	newtFormAddHotKey(form, NEWT_KEY_ENTER);
 33	newtFormAddHotKey(form, NEWT_KEY_ESCAPE);
 34	newtFormAddHotKey(form, NEWT_KEY_LEFT);
 35	newtFormAddHotKey(form, CTRL('c'));
 36	newtFormRun(form, &es);
 37
 38	if (result != NULL) {
 39		strncpy(bf, result, size);
 40		err = 0;
 41	}
 42out_free_form:
 43	newtPopWindow();
 44	newtFormDestroy(form);
 45	return err;
 46}
 47
 48struct map_browser {
 49	struct ui_browser b;
 50	struct map	  *map;
 51	u8		  addrlen;
 52};
 53
 54static void map_browser__write(struct ui_browser *self, void *nd, int row)
 55{
 56	struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
 57	struct map_browser *mb = container_of(self, struct map_browser, b);
 58	bool current_entry = ui_browser__is_current_entry(self, row);
 59	int width;
 60
 61	ui_browser__set_percent_color(self, 0, current_entry);
 62	slsmg_printf("%*" PRIx64 " %*" PRIx64 " %c ",
 63		     mb->addrlen, sym->start, mb->addrlen, sym->end,
 64		     sym->binding == STB_GLOBAL ? 'g' :
 65		     sym->binding == STB_LOCAL  ? 'l' : 'w');
 66	width = self->width - ((mb->addrlen * 2) + 4);
 67	if (width > 0)
 68		slsmg_write_nstring(sym->name, width);
 69}
 70
 71/* FIXME uber-kludgy, see comment on cmd_report... */
 72static u32 *symbol__browser_index(struct symbol *self)
 73{
 74	return ((void *)self) - sizeof(struct rb_node) - sizeof(u32);
 75}
 76
 77static int map_browser__search(struct map_browser *self)
 78{
 79	char target[512];
 80	struct symbol *sym;
 81	int err = ui_entry__read("Search by name/addr", target, sizeof(target), 40);
 82
 83	if (err)
 84		return err;
 85
 86	if (target[0] == '0' && tolower(target[1]) == 'x') {
 87		u64 addr = strtoull(target, NULL, 16);
 88		sym = map__find_symbol(self->map, addr, NULL);
 89	} else
 90		sym = map__find_symbol_by_name(self->map, target, NULL);
 91
 92	if (sym != NULL) {
 93		u32 *idx = symbol__browser_index(sym);
 94
 95		self->b.top = &sym->rb_node;
 96		self->b.index = self->b.top_idx = *idx;
 97	} else
 98		ui_helpline__fpush("%s not found!", target);
 99
100	return 0;
101}
102
103static int map_browser__run(struct map_browser *self)
104{
105	int key;
106
107	if (ui_browser__show(&self->b, self->map->dso->long_name,
108			     "Press <- or ESC to exit, %s / to search",
109			     verbose ? "" : "restart with -v to use") < 0)
110		return -1;
111
112	while (1) {
113		key = ui_browser__run(&self->b, 0);
114
115		if (verbose && key == '/')
116			map_browser__search(self);
117		else
118			break;
119	}
120
121	ui_browser__hide(&self->b);
122	return key;
123}
124
125int map__browse(struct map *self)
126{
127	struct map_browser mb = {
128		.b = {
129			.entries = &self->dso->symbols[self->type],
130			.refresh = ui_browser__rb_tree_refresh,
131			.seek	 = ui_browser__rb_tree_seek,
132			.write	 = map_browser__write,
133		},
134		.map = self,
135	};
136	struct rb_node *nd;
137	char tmp[BITS_PER_LONG / 4];
138	u64 maxaddr = 0;
139
140	for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) {
141		struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
142
143		if (maxaddr < pos->end)
144			maxaddr = pos->end;
145		if (verbose) {
146			u32 *idx = symbol__browser_index(pos);
147			*idx = mb.b.nr_entries;
148		}
149		++mb.b.nr_entries;
150	}
151
152	mb.addrlen = snprintf(tmp, sizeof(tmp), "%" PRIx64, maxaddr);
153	return map_browser__run(&mb);
154}