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perf trace: Store the syscall ids for the event qualifiers in a table

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That we will use to set a filter on raw_syscalls:sys_{enter,exit}
events.

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-2acxrcxyu7tlolrfilpty38y@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 18:28:11 -03:00
parent c27366f0f9
commit 8b3ce75765
1 changed files with 29 additions and 7 deletions
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36
tools/perf/builtin-trace.c
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@ -1272,8 +1272,8 @@ struct trace {
int max;
struct syscall *table;
struct {
struct perf_evsel *enter,
*exit;
struct perf_evsel *sys_enter,
*sys_exit;
} events;
} syscalls;
struct record_opts opts;
@ -1284,6 +1284,10 @@ struct trace {
FILE *output;
unsigned long nr_events;
struct strlist *ev_qualifier;
struct {
size_t nr;
int *entries;
} ev_qualifier_ids;
const char *last_vfs_getname;
struct intlist *tid_list;
struct intlist *pid_list;
@ -1587,13 +1591,27 @@ static int trace__read_syscall_info(struct trace *trace, int id)
static int trace__validate_ev_qualifier(struct trace *trace)
{
int err = 0;
int err = 0, i;
struct str_node *pos;
trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier);
trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr *
sizeof(trace->ev_qualifier_ids.entries[0]));
if (trace->ev_qualifier_ids.entries == NULL) {
fputs("Error:\tNot enough memory for allocating events qualifier ids\n",
trace->output);
err = -EINVAL;
goto out;
}
i = 0;
strlist__for_each(pos, trace->ev_qualifier) {
const char *sc = pos->s;
int id = audit_name_to_syscall(sc, trace->audit.machine);
if (audit_name_to_syscall(sc, trace->audit.machine) < 0) {
if (id < 0) {
if (err == 0) {
fputs("Error:\tInvalid syscall ", trace->output);
err = -EINVAL;
@ -1603,13 +1621,17 @@ static int trace__validate_ev_qualifier(struct trace *trace)
fputs(sc, trace->output);
}
trace->ev_qualifier_ids.entries[i++] = id;
}
if (err < 0) {
fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
"\nHint:\tand: 'man syscalls'\n", trace->output);
zfree(&trace->ev_qualifier_ids.entries);
trace->ev_qualifier_ids.nr = 0;
}
out:
return err;
}
@ -2274,8 +2296,8 @@ static int trace__add_syscall_newtp(struct trace *trace)
perf_evlist__add(evlist, sys_enter);
perf_evlist__add(evlist, sys_exit);
trace->syscalls.events.enter = sys_enter;
trace->syscalls.events.exit = sys_exit;
trace->syscalls.events.sys_enter = sys_enter;
trace->syscalls.events.sys_exit = sys_exit;
ret = 0;
out: