tools/perf/util/env.c

   1 #include "cpumap.h"
   2 #include "env.h"
   3 #include "util.h"
   4 #include <errno.h>
   5
   6 struct perf_env perf_env;
   7
   8 void perf_env__exit(struct perf_env *env)
   9 {
  10         int i;
  11
  12         zfree(&env->hostname);
  13         zfree(&env->os_release);
  14         zfree(&env->version);
  15         zfree(&env->arch);
  16         zfree(&env->cpu_desc);
  17         zfree(&env->cpuid);
  18         zfree(&env->cmdline);
  19         zfree(&env->cmdline_argv);
  20         zfree(&env->sibling_cores);
  21         zfree(&env->sibling_threads);
  22         zfree(&env->pmu_mappings);
  23         zfree(&env->cpu);
  24
  25         for (i = 0; i < env->nr_numa_nodes; i++)
  26                 cpu_map__put(env->numa_nodes[i].map);
  27         zfree(&env->numa_nodes);
  28
  29         for (i = 0; i < env->caches_cnt; i++)
  30                 cpu_cache_level__free(&env->caches[i]);
  31         zfree(&env->caches);
  32 }
  33
  34 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[])
  35 {
  36         int i;
  37
  38         /* do not include NULL termination */
  39         env->cmdline_argv = calloc(argc, sizeof(char *));
  40         if (env->cmdline_argv == NULL)
  41                 goto out_enomem;
  42
  43         /*
  44          * Must copy argv contents because it gets moved around during option
  45          * parsing:
  46          */
  47         for (i = 0; i < argc ; i++) {
  48                 env->cmdline_argv[i] = argv[i];
  49                 if (env->cmdline_argv[i] == NULL)
  50                         goto out_free;
  51         }
  52
  53         env->nr_cmdline = argc;
  54
  55         return 0;
  56 out_free:
  57         zfree(&env->cmdline_argv);
  58 out_enomem:
  59         return -ENOMEM;
  60 }
  61
  62 int perf_env__read_cpu_topology_map(struct perf_env *env)
  63 {
  64         int cpu, nr_cpus;
  65
  66         if (env->cpu != NULL)
  67                 return 0;
  68
  69         if (env->nr_cpus_avail == 0)
  70                 env->nr_cpus_avail = cpu__max_present_cpu();
  71
  72         nr_cpus = env->nr_cpus_avail;
  73         if (nr_cpus == -1)
  74                 return -EINVAL;
  75
  76         env->cpu = calloc(nr_cpus, sizeof(env->cpu[0]));
  77         if (env->cpu == NULL)
  78                 return -ENOMEM;
  79
  80         for (cpu = 0; cpu < nr_cpus; ++cpu) {
  81                 env->cpu[cpu].core_id   = cpu_map__get_core_id(cpu);
  82                 env->cpu[cpu].socket_id = cpu_map__get_socket_id(cpu);
  83         }
  84
  85         env->nr_cpus_avail = nr_cpus;
  86         return 0;
  87 }
  88
  89 void cpu_cache_level__free(struct cpu_cache_level *cache)
  90 {
  91         free(cache->type);
  92         free(cache->map);
  93         free(cache->size);
  94 }