forked from luck/tmp_suning_uos_patched
3183f8ca30
Remove the split of symbol tables for data (MAP__VARIABLE) and for functions (MAP__FUNCTION), its unneeded and there were various places doing two lookups to find a symbol, so simplify this. We still will consider only the symbols that matched the filters in place, i.e. see the (elf_(sec,sym)|symbol_type)__filter() routines in the patch, just so that we consider only the same symbols as before, to reduce the possibility of regressions. All the tests on 50-something build environments, in varios versions of lots of distros and cross build environments were performed without build regressions, as usual with all pull requests the other tests were also performed: 'perf test' and 'make -C tools/perf build-test'. Also this was done at a great granularity so that regressions can be bisected more easily. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-hiq0fy2rsleupnqqwuojo1ne@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <elf.h>
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#include <inttypes.h>
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#include <sys/ttydefaults.h>
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#include <string.h>
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#include <linux/bitops.h>
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#include "../../util/util.h"
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#include "../../util/debug.h"
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#include "../../util/symbol.h"
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#include "../browser.h"
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#include "../helpline.h"
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#include "../keysyms.h"
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#include "map.h"
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#include "sane_ctype.h"
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struct map_browser {
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struct ui_browser b;
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struct map *map;
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u8 addrlen;
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};
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static void map_browser__write(struct ui_browser *browser, void *nd, int row)
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{
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struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
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struct map_browser *mb = container_of(browser, struct map_browser, b);
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bool current_entry = ui_browser__is_current_entry(browser, row);
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int width;
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ui_browser__set_percent_color(browser, 0, current_entry);
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ui_browser__printf(browser, "%*" PRIx64 " %*" PRIx64 " %c ",
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mb->addrlen, sym->start, mb->addrlen, sym->end,
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sym->binding == STB_GLOBAL ? 'g' :
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sym->binding == STB_LOCAL ? 'l' : 'w');
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width = browser->width - ((mb->addrlen * 2) + 4);
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if (width > 0)
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ui_browser__write_nstring(browser, sym->name, width);
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}
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/* FIXME uber-kludgy, see comment on cmd_report... */
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static u32 *symbol__browser_index(struct symbol *browser)
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{
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return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
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}
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static int map_browser__search(struct map_browser *browser)
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{
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char target[512];
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struct symbol *sym;
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int err = ui_browser__input_window("Search by name/addr",
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"Prefix with 0x to search by address",
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target, "ENTER: OK, ESC: Cancel", 0);
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if (err != K_ENTER)
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return -1;
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if (target[0] == '0' && tolower(target[1]) == 'x') {
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u64 addr = strtoull(target, NULL, 16);
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sym = map__find_symbol(browser->map, addr);
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} else
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sym = map__find_symbol_by_name(browser->map, target);
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if (sym != NULL) {
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u32 *idx = symbol__browser_index(sym);
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browser->b.top = &sym->rb_node;
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browser->b.index = browser->b.top_idx = *idx;
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} else
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ui_helpline__fpush("%s not found!", target);
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return 0;
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}
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static int map_browser__run(struct map_browser *browser)
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{
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int key;
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if (ui_browser__show(&browser->b, browser->map->dso->long_name,
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"Press ESC to exit, %s / to search",
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verbose > 0 ? "" : "restart with -v to use") < 0)
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return -1;
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while (1) {
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key = ui_browser__run(&browser->b, 0);
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switch (key) {
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case '/':
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if (verbose > 0)
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map_browser__search(browser);
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default:
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break;
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case K_LEFT:
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case K_ESC:
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case 'q':
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case CTRL('c'):
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goto out;
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}
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}
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out:
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ui_browser__hide(&browser->b);
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return key;
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}
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int map__browse(struct map *map)
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{
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struct map_browser mb = {
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.b = {
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.entries = &map->dso->symbols,
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.refresh = ui_browser__rb_tree_refresh,
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.seek = ui_browser__rb_tree_seek,
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.write = map_browser__write,
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},
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.map = map,
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};
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struct rb_node *nd;
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char tmp[BITS_PER_LONG / 4];
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u64 maxaddr = 0;
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for (nd = rb_first(mb.b.entries); nd; nd = rb_next(nd)) {
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struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
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if (maxaddr < pos->end)
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maxaddr = pos->end;
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if (verbose > 0) {
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u32 *idx = symbol__browser_index(pos);
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*idx = mb.b.nr_entries;
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}
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++mb.b.nr_entries;
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}
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mb.addrlen = snprintf(tmp, sizeof(tmp), "%" PRIx64, maxaddr);
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return map_browser__run(&mb);
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}
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