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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2bdb2c2729
perf_env__set_cmdline() only saves the arguments the first time it's called. It doesn't need to be called every time the options and suboptions are parsed. Instead it can just be called once. This also has the advantage of making the option parsing code less perf-specific so it can be moved out to a library. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/19b76a5aa1b688bd635bd65d80bbc103a978d75e.1449548395.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
#include "cpumap.h"
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#include "env.h"
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#include "util.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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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->numa_nodes);
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zfree(&env->pmu_mappings);
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zfree(&env->cpu);
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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 = sysconf(_SC_NPROCESSORS_CONF);
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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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