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authorArnaldo Carvalho de Melo <acme@redhat.com>2015-07-02 18:28:11 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-07-06 10:21:47 -0300
commit8b3ce7576598b8e3b746beb9e8d10c33bcc64edd (patch)
treee5572f92db7f6956227b1607a7b586d141ae677d /tools/perf/builtin-trace.c
parentc27366f0f9dac552251a92453e4dc65164d530d4 (diff)
downloadlinux-8b3ce7576598b8e3b746beb9e8d10c33bcc64edd.tar.gz
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.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
-rw-r--r--tools/perf/builtin-trace.c36
1 files changed, 29 insertions, 7 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 431e297b0e3a..b10608680c01 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -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: