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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-01-05 15:31:48 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-01-11 16:48:00 -0300 |
| commit | 7d132caaf9392853ad637c8e6e53333cbeb99aa5 (patch) | |
| tree | 82ca4272bb5c7b54e86661a35069d136b56aaf06 | |
| parent | d5f805c09620dadc1a7806fbd46189d183f6c395 (diff) | |
| download | linux-7d132caaf9392853ad637c8e6e53333cbeb99aa5.tar.gz linux-7d132caaf9392853ad637c8e6e53333cbeb99aa5.tar.bz2 linux-7d132caaf9392853ad637c8e6e53333cbeb99aa5.zip | |
perf machine: Add a kallsyms loading constructor
To reduce the boilerplate for searching for functions in the running
kernel and modules.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-93iqzayafpaxaguoiwjqezgz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/machine.c | 19 | ||||
| -rw-r--r-- | tools/perf/util/machine.h | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 9b33bef54581..747a034d1ff3 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -87,6 +87,25 @@ out_delete: return NULL; } +struct machine *machine__new_kallsyms(void) +{ + struct machine *machine = machine__new_host(); + /* + * FIXME: + * 1) MAP__FUNCTION will go away when we stop loading separate maps for + * functions and data objects. + * 2) We should switch to machine__load_kallsyms(), i.e. not explicitely + * ask for not using the kcore parsing code, once this one is fixed + * to create a map per module. + */ + if (machine && __machine__load_kallsyms(machine, "/proc/kallsyms", MAP__FUNCTION, true) <= 0) { + machine__delete(machine); + machine = NULL; + } + + return machine; +} + static void dsos__purge(struct dsos *dsos) { struct dso *pos, *n; diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 354de6e56109..a28305029711 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -129,6 +129,7 @@ char *machine__mmap_name(struct machine *machine, char *bf, size_t size); void machines__set_comm_exec(struct machines *machines, bool comm_exec); struct machine *machine__new_host(void); +struct machine *machine__new_kallsyms(void); int machine__init(struct machine *machine, const char *root_dir, pid_t pid); void machine__exit(struct machine *machine); void machine__delete_threads(struct machine *machine); |