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

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.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
上级 c27366f0
...@@ -1272,8 +1272,8 @@ struct trace { ...@@ -1272,8 +1272,8 @@ struct trace {
int max; int max;
struct syscall *table; struct syscall *table;
struct { struct {
struct perf_evsel *enter, struct perf_evsel *sys_enter,
*exit; *sys_exit;
} events; } events;
} syscalls; } syscalls;
struct record_opts opts; struct record_opts opts;
...@@ -1284,6 +1284,10 @@ struct trace { ...@@ -1284,6 +1284,10 @@ struct trace {
FILE *output; FILE *output;
unsigned long nr_events; unsigned long nr_events;
struct strlist *ev_qualifier; struct strlist *ev_qualifier;
struct {
size_t nr;
int *entries;
} ev_qualifier_ids;
const char *last_vfs_getname; const char *last_vfs_getname;
struct intlist *tid_list; struct intlist *tid_list;
struct intlist *pid_list; struct intlist *pid_list;
...@@ -1587,13 +1591,27 @@ static int trace__read_syscall_info(struct trace *trace, int id) ...@@ -1587,13 +1591,27 @@ static int trace__read_syscall_info(struct trace *trace, int id)
static int trace__validate_ev_qualifier(struct trace *trace) static int trace__validate_ev_qualifier(struct trace *trace)
{ {
int err = 0; int err = 0, i;
struct str_node *pos; 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) { strlist__for_each(pos, trace->ev_qualifier) {
const char *sc = pos->s; 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) { if (err == 0) {
fputs("Error:\tInvalid syscall ", trace->output); fputs("Error:\tInvalid syscall ", trace->output);
err = -EINVAL; err = -EINVAL;
...@@ -1603,13 +1621,17 @@ static int trace__validate_ev_qualifier(struct trace *trace) ...@@ -1603,13 +1621,17 @@ static int trace__validate_ev_qualifier(struct trace *trace)
fputs(sc, trace->output); fputs(sc, trace->output);
} }
trace->ev_qualifier_ids.entries[i++] = id;
} }
if (err < 0) { if (err < 0) {
fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
"\nHint:\tand: 'man syscalls'\n", trace->output); "\nHint:\tand: 'man syscalls'\n", trace->output);
zfree(&trace->ev_qualifier_ids.entries);
trace->ev_qualifier_ids.nr = 0;
} }
out:
return err; return err;
} }
...@@ -2274,8 +2296,8 @@ static int trace__add_syscall_newtp(struct trace *trace) ...@@ -2274,8 +2296,8 @@ static int trace__add_syscall_newtp(struct trace *trace)
perf_evlist__add(evlist, sys_enter); perf_evlist__add(evlist, sys_enter);
perf_evlist__add(evlist, sys_exit); perf_evlist__add(evlist, sys_exit);
trace->syscalls.events.enter = sys_enter; trace->syscalls.events.sys_enter = sys_enter;
trace->syscalls.events.exit = sys_exit; trace->syscalls.events.sys_exit = sys_exit;
ret = 0; ret = 0;
out: out:
......
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