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 /* 29 * If env->cmdline_argv has already been set, do not override it. This allows 30 * a command to set the cmdline, parse args and then call another 31 * builtin function that implements a command -- e.g, cmd_kvm calling 32 * cmd_record. 33 */ 34 if (env->cmdline_argv != NULL) 35 return 0; 36 37 /* do not include NULL termination */ 38 env->cmdline_argv = calloc(argc, sizeof(char *)); 39 if (env->cmdline_argv == NULL) 40 goto out_enomem; 41 42 /* 43 * Must copy argv contents because it gets moved around during option 44 * parsing: 45 */ 46 for (i = 0; i < argc ; i++) { 47 env->cmdline_argv[i] = argv[i]; 48 if (env->cmdline_argv[i] == NULL) 49 goto out_free; 50 } 51 52 env->nr_cmdline = argc; 53 54 return 0; 55 out_free: 56 zfree(&env->cmdline_argv); 57 out_enomem: 58 return -ENOMEM; 59 } 60 61 int perf_env__read_cpu_topology_map(struct perf_env *env) 62 { 63 int cpu, nr_cpus; 64 65 if (env->cpu != NULL) 66 return 0; 67 68 if (env->nr_cpus_avail == 0) 69 env->nr_cpus_avail = sysconf(_SC_NPROCESSORS_CONF); 70 71 nr_cpus = env->nr_cpus_avail; 72 if (nr_cpus == -1) 73 return -EINVAL; 74 75 env->cpu = calloc(nr_cpus, sizeof(env->cpu[0])); 76 if (env->cpu == NULL) 77 return -ENOMEM; 78 79 for (cpu = 0; cpu < nr_cpus; ++cpu) { 80 env->cpu[cpu].core_id = cpu_map__get_core_id(cpu); 81 env->cpu[cpu].socket_id = cpu_map__get_socket_id(cpu); 82 } 83 84 env->nr_cpus_avail = nr_cpus; 85 return 0; 86 } 87