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perf symbols: Add map_groups__find_ams()

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Add a function to find a symbol using an ip that might be on a different
map.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2013-10-14 13:43:38 +03:00
parent afba19d9dc
commit 4e98771274
2 changed files with 21 additions and 0 deletions
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17
tools/perf/util/map.c
View File

@ -371,6 +371,23 @@ struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
return NULL;
}
int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter)
{
if (ams->addr < ams->map->start || ams->addr > ams->map->end) {
if (ams->map->groups == NULL)
return -1;
ams->map = map_groups__find(ams->map->groups, ams->map->type,
ams->addr);
if (ams->map == NULL)
return -1;
}
ams->al_addr = ams->map->map_ip(ams->map, ams->addr);
ams->sym = map__find_symbol(ams->map, ams->al_addr, filter);
return ams->sym ? 0 : -1;
}
size_t __map_groups__fprintf_maps(struct map_groups *mg,
enum map_type type, int verbose, FILE *fp)
{

4
tools/perf/util/map.h
View File

@ -167,6 +167,10 @@ struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
struct map **mapp,
symbol_filter_t filter);
struct addr_map_symbol;
int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);
static inline
struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
const char *name, struct map **mapp,