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