forked from luck/tmp_suning_uos_patched
7137ff50b6
At the cost of an extra pointer, we can avoid the O(logN) cost of finding the first element in the tree (smallest node). Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20181206191819.30182-6-dave@stgolabs.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
75 lines
1.8 KiB
C
75 lines
1.8 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 <stdio.h>
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#include "map.h"
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#include "symbol.h"
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size_t symbol__fprintf(struct symbol *sym, FILE *fp)
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{
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return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %c %s\n",
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sym->start, 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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sym->name);
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}
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size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
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const struct addr_location *al,
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bool unknown_as_addr,
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bool print_offsets, FILE *fp)
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{
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unsigned long offset;
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size_t length;
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if (sym) {
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length = fprintf(fp, "%s", sym->name);
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if (al && print_offsets) {
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if (al->addr < sym->end)
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offset = al->addr - sym->start;
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else
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offset = al->addr - al->map->start - sym->start;
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length += fprintf(fp, "+0x%lx", offset);
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}
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return length;
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} else if (al && unknown_as_addr)
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return fprintf(fp, "[%#" PRIx64 "]", al->addr);
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else
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return fprintf(fp, "[unknown]");
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}
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size_t symbol__fprintf_symname_offs(const struct symbol *sym,
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const struct addr_location *al,
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FILE *fp)
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{
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return __symbol__fprintf_symname_offs(sym, al, false, true, fp);
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}
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size_t __symbol__fprintf_symname(const struct symbol *sym,
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const struct addr_location *al,
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bool unknown_as_addr, FILE *fp)
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{
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return __symbol__fprintf_symname_offs(sym, al, unknown_as_addr, false, fp);
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}
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size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp)
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{
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return __symbol__fprintf_symname_offs(sym, NULL, false, false, fp);
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}
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size_t dso__fprintf_symbols_by_name(struct dso *dso,
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FILE *fp)
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{
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size_t ret = 0;
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struct rb_node *nd;
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struct symbol_name_rb_node *pos;
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for (nd = rb_first_cached(&dso->symbol_names); nd; nd = rb_next(nd)) {
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pos = rb_entry(nd, struct symbol_name_rb_node, rb_node);
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fprintf(fp, "%s\n", pos->sym.name);
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}
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return ret;
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}
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