1#include "../libslang.h" 2#include <elf.h> 3#include <newt.h> 4#include <sys/ttydefaults.h> 5#include <ctype.h> 6#include <string.h> 7#include <linux/bitops.h> 8#include "../../debug.h" 9#include "../../symbol.h" 10#include "../browser.h" 11#include "../helpline.h" 12#include "map.h" 13 14static int ui_entry__read(const char *title, char *bf, size_t size, int width) 15{ 16 struct newtExitStruct es; 17 newtComponent form, entry; 18 const char *result; 19 int err = -1; 20 21 newtCenteredWindow(width, 1, title); 22 form = newtForm(NULL, NULL, 0); 23 if (form == NULL) 24 return -1; 25 26 entry = newtEntry(0, 0, "0x", width, &result, NEWT_FLAG_SCROLL); 27 if (entry == NULL) 28 goto out_free_form; 29 30 newtFormAddComponent(form, entry); 31 newtFormAddHotKey(form, NEWT_KEY_ENTER); 32 newtFormAddHotKey(form, NEWT_KEY_ESCAPE); 33 newtFormAddHotKey(form, NEWT_KEY_LEFT); 34 newtFormAddHotKey(form, CTRL('c')); 35 newtFormRun(form, &es); 36 37 if (result != NULL) { 38 strncpy(bf, result, size); 39 err = 0; 40 } 41out_free_form: 42 newtPopWindow(); 43 newtFormDestroy(form); 44 return 0; 45} 46 47struct map_browser { 48 struct ui_browser b; 49 struct map *map; 50 u16 namelen; 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 color = ui_browser__percent_color(0, current_entry); 60 61 SLsmg_set_color(color); 62 slsmg_printf("%*llx %*llx %c ", 63 mb->addrlen, sym->start, mb->addrlen, sym->end, 64 sym->binding == STB_GLOBAL ? 'g' : 65 sym->binding == STB_LOCAL ? 'l' : 'w'); 66 slsmg_write_nstring(sym->name, mb->namelen); 67} 68 69static u32 *symbol__browser_index(struct symbol *self) 70{ 71 return ((void *)self) - sizeof(struct rb_node) - sizeof(u32); 72} 73 74static int map_browser__search(struct map_browser *self) 75{ 76 char target[512]; 77 struct symbol *sym; 78 int err = ui_entry__read("Search by name/addr", target, sizeof(target), 40); 79 80 if (err) 81 return err; 82 83 if (target[0] == '0' && tolower(target[1]) == 'x') { 84 u64 addr = strtoull(target, NULL, 16); 85 sym = map__find_symbol(self->map, addr, NULL); 86 } else 87 sym = map__find_symbol_by_name(self->map, target, NULL); 88 89 if (sym != NULL) { 90 u32 *idx = symbol__browser_index(sym); 91 92 self->b.top = &sym->rb_node; 93 self->b.index = self->b.top_idx = *idx; 94 } else 95 ui_helpline__fpush("%s not found!", target); 96 97 return 0; 98} 99 100static int map_browser__run(struct map_browser *self, struct newtExitStruct *es) 101{ 102 if (ui_browser__show(&self->b, self->map->dso->long_name, 103 "Press <- or ESC to exit, %s / to search", 104 verbose ? "" : "restart with -v to use") < 0) 105 return -1; 106 107 newtFormAddHotKey(self->b.form, NEWT_KEY_LEFT); 108 newtFormAddHotKey(self->b.form, NEWT_KEY_ENTER); 109 if (verbose) 110 newtFormAddHotKey(self->b.form, '/'); 111 112 while (1) { 113 ui_browser__run(&self->b, es); 114 115 if (es->reason != NEWT_EXIT_HOTKEY) 116 break; 117 if (verbose && es->u.key == '/') 118 map_browser__search(self); 119 else 120 break; 121 } 122 123 ui_browser__hide(&self->b); 124 return 0; 125} 126 127int map__browse(struct map *self) 128{ 129 struct map_browser mb = { 130 .b = { 131 .entries = &self->dso->symbols[self->type], 132 .refresh = ui_browser__rb_tree_refresh, 133 .seek = ui_browser__rb_tree_seek, 134 .write = map_browser__write, 135 }, 136 .map = self, 137 }; 138 struct newtExitStruct es; 139 struct rb_node *nd; 140 char tmp[BITS_PER_LONG / 4]; 141 u64 maxaddr = 0; 142 143 for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) { 144 struct symbol *pos = rb_entry(nd, struct symbol, rb_node); 145 146 if (mb.namelen < pos->namelen) 147 mb.namelen = pos->namelen; 148 if (maxaddr < pos->end) 149 maxaddr = pos->end; 150 if (verbose) { 151 u32 *idx = symbol__browser_index(pos); 152 *idx = mb.b.nr_entries; 153 } 154 ++mb.b.nr_entries; 155 } 156 157 mb.addrlen = snprintf(tmp, sizeof(tmp), "%llx", maxaddr); 158 mb.b.width += mb.addrlen * 2 + 4 + mb.namelen; 159 return map_browser__run(&mb, &es); 160} 161