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linux/tools/perf/util/map_symbol.c
Namhyung Kim 96465e0179 perf hist: Correct hist_entry->mem_info refcounts
The 'struct mem_info' is created by iter_prepare_mem_entry() at the
beginning and destroyed by iter_finish_mem_entry() at the end.

So if it's used in a new hist_entry, it should be cloned.

Simplify (hopefully) the logic by adding some helper functions and by
not holding the refcount in the temporary entry.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20240731235505.710436-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-08-01 18:55:55 -03:00

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C

// SPDX-License-Identifier: GPL-2.0
#include "map_symbol.h"
#include "maps.h"
#include "map.h"
void map_symbol__exit(struct map_symbol *ms)
{
maps__zput(ms->maps);
map__zput(ms->map);
}
void addr_map_symbol__exit(struct addr_map_symbol *ams)
{
map_symbol__exit(&ams->ms);
}
void map_symbol__copy(struct map_symbol *dst, struct map_symbol *src)
{
dst->maps = maps__get(src->maps);
dst->map = map__get(src->map);
dst->sym = src->sym;
}
void addr_map_symbol__copy(struct addr_map_symbol *dst, struct addr_map_symbol *src)
{
map_symbol__copy(&dst->ms, &src->ms);
dst->addr = src->addr;
dst->al_addr = src->al_addr;
dst->al_level = src->al_level;
dst->phys_addr = src->phys_addr;
dst->data_page_size = src->data_page_size;
}