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>
74 lines
1.8 KiB
C
74 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 "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(&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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