135 lines · c
1// SPDX-License-Identifier: GPL-2.02#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 19struct map_browser {20 struct ui_browser b;21 struct map *map;22 u8 addrlen;23};24 25static 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... */43static u32 *symbol__browser_index(struct symbol *browser)44{45 return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);46}47 48static 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] == '0' && tolower(target[1]) == 'x') {59 u64 addr = strtoull(target, NULL, 16);60 sym = map__find_symbol(browser->map, addr);61 } else62 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 } else70 ui_helpline__fpush("%s not found!", target);71 72 return 0;73}74 75static 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 }100out:101 ui_browser__hide(&browser->b);102 return key;103}104 105int 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