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Diffstat (limited to 'tools/perf/builtin-trace.c')
-rw-r--r--tools/perf/builtin-trace.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 071e7598391f..543c379d2a57 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -122,7 +122,6 @@ struct trace {
struct syscalltbl *sctbl;
struct {
struct syscall *table;
- struct bpf_map *map;
struct { // per syscall BPF_MAP_TYPE_PROG_ARRAY
struct bpf_map *sys_enter,
*sys_exit;
@@ -1225,16 +1224,6 @@ struct syscall {
};
/*
- * Must match what is in the BPF program:
- *
- * tools/perf/examples/bpf/augmented_raw_syscalls.c
- */
-struct bpf_map_syscall_entry {
- bool enabled;
- u16 string_args_len[RAW_SYSCALL_ARGS_NUM];
-};
-
-/*
* We need to have this 'calculated' boolean because in some cases we really
* don't know what is the duration of a syscall, for instance, when we start
* a session and some threads are waiting for a syscall to finish, say 'poll',
@@ -3259,7 +3248,6 @@ static void trace__set_bpf_map_filtered_pids(struct trace *trace)
static void trace__set_bpf_map_syscalls(struct trace *trace)
{
- trace->syscalls.map = trace__find_bpf_map_by_name(trace, "syscalls");
trace->syscalls.prog_array.sys_enter = trace__find_bpf_map_by_name(trace, "syscalls_sys_enter");
trace->syscalls.prog_array.sys_exit = trace__find_bpf_map_by_name(trace, "syscalls_sys_exit");
}
@@ -3339,80 +3327,6 @@ static int trace__bpf_prog_sys_exit_fd(struct trace *trace, int id)
return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(trace->syscalls.unaugmented_prog);
}
-static void trace__init_bpf_map_syscall_args(struct trace *trace, int id, struct bpf_map_syscall_entry *entry)
-{
- struct syscall *sc = trace__syscall_info(trace, NULL, id);
- int arg = 0;
-
- if (sc == NULL)
- goto out;
-
- for (; arg < sc->nr_args; ++arg) {
- entry->string_args_len[arg] = 0;
- if (sc->arg_fmt[arg].scnprintf == SCA_FILENAME) {
- /* Should be set like strace -s strsize */
- entry->string_args_len[arg] = PATH_MAX;
- }
- }
-out:
- for (; arg < 6; ++arg)
- entry->string_args_len[arg] = 0;
-}
-static int trace__set_ev_qualifier_bpf_filter(struct trace *trace)
-{
- int fd = bpf_map__fd(trace->syscalls.map);
- struct bpf_map_syscall_entry value = {
- .enabled = !trace->not_ev_qualifier,
- };
- int err = 0;
- size_t i;
-
- for (i = 0; i < trace->ev_qualifier_ids.nr; ++i) {
- int key = trace->ev_qualifier_ids.entries[i];
-
- if (value.enabled) {
- trace__init_bpf_map_syscall_args(trace, key, &value);
- trace__init_syscall_bpf_progs(trace, key);
- }
-
- err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
- if (err)
- break;
- }
-
- return err;
-}
-
-static int __trace__init_syscalls_bpf_map(struct trace *trace, bool enabled)
-{
- int fd = bpf_map__fd(trace->syscalls.map);
- struct bpf_map_syscall_entry value = {
- .enabled = enabled,
- };
- int err = 0, key;
-
- for (key = 0; key < trace->sctbl->syscalls.nr_entries; ++key) {
- if (enabled)
- trace__init_bpf_map_syscall_args(trace, key, &value);
-
- err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
- if (err)
- break;
- }
-
- return err;
-}
-
-static int trace__init_syscalls_bpf_map(struct trace *trace)
-{
- bool enabled = true;
-
- if (trace->ev_qualifier_ids.nr)
- enabled = trace->not_ev_qualifier;
-
- return __trace__init_syscalls_bpf_map(trace, enabled);
-}
-
static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace, struct syscall *sc)
{
struct tep_format_field *field, *candidate_field;
@@ -3627,16 +3541,6 @@ static void trace__set_bpf_map_syscalls(struct trace *trace __maybe_unused)
{
}
-static int trace__set_ev_qualifier_bpf_filter(struct trace *trace __maybe_unused)
-{
- return 0;
-}
-
-static int trace__init_syscalls_bpf_map(struct trace *trace __maybe_unused)
-{
- return 0;
-}
-
static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace __maybe_unused,
const char *name __maybe_unused)
{
@@ -3670,8 +3574,6 @@ static bool trace__only_augmented_syscalls_evsels(struct trace *trace)
static int trace__set_ev_qualifier_filter(struct trace *trace)
{
- if (trace->syscalls.map)
- return trace__set_ev_qualifier_bpf_filter(trace);
if (trace->syscalls.events.sys_enter)
return trace__set_ev_qualifier_tp_filter(trace);
return 0;
@@ -4045,9 +3947,6 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (err < 0)
goto out_error_mem;
- if (trace->syscalls.map)
- trace__init_syscalls_bpf_map(trace);
-
if (trace->syscalls.prog_array.sys_enter)
trace__init_syscalls_bpf_prog_array_maps(trace);