98851d55a53e4ac9076b6fc0a32c1268585005bd
[linux-3.10.git] / tools / perf / ui / browsers / map.c
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
15 static 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         }
42 out_free_form:
43         newtPopWindow();
44         newtFormDestroy(form);
45         return err;
46 }
47
48 struct map_browser {
49         struct ui_browser b;
50         struct map        *map;
51         u8                addrlen;
52 };
53
54 static 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... */
72 static u32 *symbol__browser_index(struct symbol *self)
73 {
74         return ((void *)self) - sizeof(struct rb_node) - sizeof(u32);
75 }
76
77 static 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
103 static 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
125 int 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 }