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perf dso: Add dso__has_symbols() method

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To replace longer code sequences in various places.

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-tlk3klbkfyjrbfjvryyznfju@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-04-23 17:08:02 -03:00
parent efdd5c6b81
commit d88205db9c
3 changed files with 8 additions and 3 deletions
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2
tools/perf/builtin-report.c
View file

@ -525,7 +525,7 @@ static void report__warn_kptr_restrict(const struct report *rep)
if (kernel_map) {
const struct dso *kdso = kernel_map->dso;
if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
if (dso__has_symbols(kdso, MAP__FUNCTION)) {
desc = "If some relocation was applied (e.g. "
"kexec) symbols may be misresolved.";
}

4
tools/perf/builtin-top.c
View file

@ -742,7 +742,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
"Check /proc/sys/kernel/kptr_restrict.\n\n"
"Kernel%s samples will not be resolved.\n",
al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
al.map && dso__has_symbols(al.map->dso, MAP__FUNCTION) ?
" modules" : "");
if (use_browser <= 0)
sleep(5);
@ -765,7 +765,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
*/
if (!machine->kptr_restrict_warned && !top->vmlinux_warned &&
__map__is_kernel(al.map) &&
RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
dso__has_symbols(al.map->dso, MAP__FUNCTION)) {
if (symbol_conf.vmlinux_name) {
char serr[256];
dso__strerror_load(al.map->dso, serr, sizeof(serr));

5
tools/perf/util/dso.h
View file

@ -233,6 +233,11 @@ static inline void __dso__zput(struct dso **dso)
bool dso__loaded(const struct dso *dso, enum map_type type);
static inline bool dso__has_symbols(const struct dso *dso, enum map_type type)
{
return !RB_EMPTY_ROOT(&dso->symbols[type]);
}
bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
void dso__set_sorted_by_name(struct dso *dso, enum map_type type);
void dso__sort_by_name(struct dso *dso, enum map_type type);