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127 lines
2.5 KiB
127 lines
2.5 KiB
// SPDX-License-Identifier: GPL-2.0
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#include "cpumap.h"
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#include "env.h"
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#include "util.h"
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#include <errno.h>
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#include <sys/utsname.h>
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struct perf_env perf_env;
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void perf_env__exit(struct perf_env *env)
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{
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int i;
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zfree(&env->hostname);
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zfree(&env->os_release);
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zfree(&env->version);
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zfree(&env->arch);
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zfree(&env->cpu_desc);
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zfree(&env->cpuid);
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zfree(&env->cmdline);
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zfree(&env->cmdline_argv);
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zfree(&env->sibling_cores);
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zfree(&env->sibling_threads);
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zfree(&env->pmu_mappings);
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zfree(&env->cpu);
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for (i = 0; i < env->nr_numa_nodes; i++)
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cpu_map__put(env->numa_nodes[i].map);
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zfree(&env->numa_nodes);
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for (i = 0; i < env->caches_cnt; i++)
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cpu_cache_level__free(&env->caches[i]);
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zfree(&env->caches);
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}
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int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[])
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{
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int i;
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/* do not include NULL termination */
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env->cmdline_argv = calloc(argc, sizeof(char *));
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if (env->cmdline_argv == NULL)
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goto out_enomem;
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/*
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* Must copy argv contents because it gets moved around during option
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* parsing:
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*/
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for (i = 0; i < argc ; i++) {
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env->cmdline_argv[i] = argv[i];
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if (env->cmdline_argv[i] == NULL)
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goto out_free;
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}
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env->nr_cmdline = argc;
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return 0;
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out_free:
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zfree(&env->cmdline_argv);
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out_enomem:
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return -ENOMEM;
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}
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int perf_env__read_cpu_topology_map(struct perf_env *env)
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{
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int cpu, nr_cpus;
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if (env->cpu != NULL)
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return 0;
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if (env->nr_cpus_avail == 0)
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env->nr_cpus_avail = cpu__max_present_cpu();
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nr_cpus = env->nr_cpus_avail;
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if (nr_cpus == -1)
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return -EINVAL;
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env->cpu = calloc(nr_cpus, sizeof(env->cpu[0]));
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if (env->cpu == NULL)
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return -ENOMEM;
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for (cpu = 0; cpu < nr_cpus; ++cpu) {
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env->cpu[cpu].core_id = cpu_map__get_core_id(cpu);
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env->cpu[cpu].socket_id = cpu_map__get_socket_id(cpu);
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}
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env->nr_cpus_avail = nr_cpus;
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return 0;
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}
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static int perf_env__read_arch(struct perf_env *env)
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{
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struct utsname uts;
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if (env->arch)
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return 0;
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if (!uname(&uts))
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env->arch = strdup(uts.machine);
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return env->arch ? 0 : -ENOMEM;
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}
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static int perf_env__read_nr_cpus_avail(struct perf_env *env)
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{
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if (env->nr_cpus_avail == 0)
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env->nr_cpus_avail = cpu__max_present_cpu();
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return env->nr_cpus_avail ? 0 : -ENOENT;
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}
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const char *perf_env__raw_arch(struct perf_env *env)
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{
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return env && !perf_env__read_arch(env) ? env->arch : "unknown";
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}
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int perf_env__nr_cpus_avail(struct perf_env *env)
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{
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return env && !perf_env__read_nr_cpus_avail(env) ? env->nr_cpus_avail : 0;
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}
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void cpu_cache_level__free(struct cpu_cache_level *cache)
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{
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free(cache->type);
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free(cache->map);
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free(cache->size);
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}
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