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perf machine: Add machine__is() to identify machine arch
commit dbbd34a666
upstream.
Add a function to identify the machine architecture.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/1526548928-20790-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
8c209c38d8
commit
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4 changed files with 33 additions and 0 deletions
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@ -3,6 +3,7 @@
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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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@ -87,6 +88,24 @@ int perf_env__read_cpu_topology_map(struct perf_env *env)
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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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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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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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@ -65,4 +65,7 @@ int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
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int perf_env__read_cpu_topology_map(struct perf_env *env);
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void cpu_cache_level__free(struct cpu_cache_level *cache);
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const char *perf_env__raw_arch(struct perf_env *env);
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#endif /* __PERF_ENV_H */
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@ -2238,6 +2238,15 @@ int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
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return 0;
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}
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/*
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* Compares the raw arch string. N.B. see instead perf_env__arch() if a
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* normalized arch is needed.
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*/
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bool machine__is(struct machine *machine, const char *arch)
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{
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return machine && !strcmp(perf_env__raw_arch(machine->env), arch);
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}
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int machine__get_kernel_start(struct machine *machine)
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{
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struct map *map = machine__kernel_map(machine);
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@ -169,6 +169,8 @@ static inline bool machine__is_host(struct machine *machine)
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return machine ? machine->pid == HOST_KERNEL_ID : false;
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}
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bool machine__is(struct machine *machine, const char *arch);
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struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
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struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
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