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perf trace: Remember what are the syscalls tracepoint evsels

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Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-u8hpgjpf3w8o1prnnjnwegwf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2015-07-02 18:24:51 -03:00
parent 93ec4ce789
commit c27366f0f9
1 changed files with 43 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
tools/perf/builtin-trace.c
View File

@ -247,42 +247,6 @@ out_delete:
({ struct syscall_tp *fields = evsel->priv; \
fields->name.pointer(&fields->name, sample); })
static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
void *sys_enter_handler,
void *sys_exit_handler)
{
int ret = -1;
struct perf_evsel *sys_enter, *sys_exit;
sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
if (sys_enter == NULL)
goto out;
if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
goto out_delete_sys_enter;
sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
if (sys_exit == NULL)
goto out_delete_sys_enter;
if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
goto out_delete_sys_exit;
perf_evlist__add(evlist, sys_enter);
perf_evlist__add(evlist, sys_exit);
ret = 0;
out:
return ret;
out_delete_sys_exit:
perf_evsel__delete_priv(sys_exit);
out_delete_sys_enter:
perf_evsel__delete_priv(sys_enter);
goto out;
}
struct syscall_arg {
unsigned long val;
struct thread *thread;
@ -1307,6 +1271,10 @@ struct trace {
struct {
int max;
struct syscall *table;
struct {
struct perf_evsel *enter,
*exit;
} events;
} syscalls;
struct record_opts opts;
struct perf_evlist *evlist;
@ -2283,6 +2251,44 @@ static void trace__handle_event(struct trace *trace, union perf_event *event, st
}
}
static int trace__add_syscall_newtp(struct trace *trace)
{
int ret = -1;
struct perf_evlist *evlist = trace->evlist;
struct perf_evsel *sys_enter, *sys_exit;
sys_enter = perf_evsel__syscall_newtp("sys_enter", trace__sys_enter);
if (sys_enter == NULL)
goto out;
if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
goto out_delete_sys_enter;
sys_exit = perf_evsel__syscall_newtp("sys_exit", trace__sys_exit);
if (sys_exit == NULL)
goto out_delete_sys_enter;
if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
goto out_delete_sys_exit;
perf_evlist__add(evlist, sys_enter);
perf_evlist__add(evlist, sys_exit);
trace->syscalls.events.enter = sys_enter;
trace->syscalls.events.exit = sys_exit;
ret = 0;
out:
return ret;
out_delete_sys_exit:
perf_evsel__delete_priv(sys_exit);
out_delete_sys_enter:
perf_evsel__delete_priv(sys_enter);
goto out;
}
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = trace->evlist;
@ -2293,9 +2299,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
trace->live = true;
if (trace->trace_syscalls &&
perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
trace__sys_exit))
if (trace->trace_syscalls && trace__add_syscall_newtp(trace))
goto out_error_raw_syscalls;
if (trace->trace_syscalls)