tools/perf/util/mem-info.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/zalloc.h>
   3 #include "mem-info.h"
   4
   5 struct mem_info *mem_info__get(struct mem_info *mi)
   6 {
   7         struct mem_info *result;
   8
   9         if (RC_CHK_GET(result, mi))
  10                 refcount_inc(mem_info__refcnt(mi));
  11
  12         return result;
  13 }
  14
  15 void mem_info__put(struct mem_info *mi)
  16 {
  17         if (mi && refcount_dec_and_test(mem_info__refcnt(mi))) {
  18                 addr_map_symbol__exit(mem_info__iaddr(mi));
  19                 addr_map_symbol__exit(mem_info__daddr(mi));
  20                 RC_CHK_FREE(mi);
  21         } else {
  22                 RC_CHK_PUT(mi);
  23         }
  24 }
  25
  26 struct mem_info *mem_info__new(void)
  27 {
  28         struct mem_info *result = NULL;
  29         RC_STRUCT(mem_info) *mi = zalloc(sizeof(*mi));
  30
  31         if (ADD_RC_CHK(result, mi))
  32                 refcount_set(mem_info__refcnt(result), 1);
  33
  34         return result;
  35 }
  36
  37 struct mem_info *mem_info__clone(struct mem_info *mi)
  38 {
  39         struct mem_info *result = mem_info__new();
  40
  41         if (result) {
  42                 addr_map_symbol__copy(mem_info__iaddr(result), mem_info__iaddr(mi));
  43                 addr_map_symbol__copy(mem_info__daddr(result), mem_info__daddr(mi));
  44                 mem_info__data_src(result)->val = mem_info__data_src(mi)->val;
  45         }
  46
  47         return result;
  48 }