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authorBjörn-Egil Dahlberg <[email protected]>2016-03-03 15:14:03 +0100
committerBjörn-Egil Dahlberg <[email protected]>2016-04-29 18:31:34 +0200
commitcc290266f06458c8009182167418ef9f1e21a794 (patch)
tree603d0f327c2d65b67289740c3a5baa12e9ca19a7
parentd4c938686562d3c5ccf6a34aafeef6460b9b88f8 (diff)
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runtime_tools: Add lttng 'ports' tracing
-rw-r--r--lib/runtime_tools/c_src/dyntrace.c58
-rw-r--r--lib/runtime_tools/c_src/dyntrace_lttng.h47
-rw-r--r--lib/runtime_tools/src/dyntrace.erl6
3 files changed, 111 insertions, 0 deletions
diff --git a/lib/runtime_tools/c_src/dyntrace.c b/lib/runtime_tools/c_src/dyntrace.c
index 0be72848e6..43d61266cc 100644
--- a/lib/runtime_tools/c_src/dyntrace.c
+++ b/lib/runtime_tools/c_src/dyntrace.c
@@ -69,6 +69,7 @@ static ERL_NIF_TERM user_trace_n(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar
static ERL_NIF_TERM enabled(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM trace_procs(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM trace_ports(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM trace_running(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM trace_send(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM trace_receive(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -83,6 +84,7 @@ static ErlNifFunc nif_funcs[] = {
{"trace", 5, trace},
{"trace", 6, trace},
{"trace_procs", 6, trace_procs},
+ {"trace_ports", 6, trace_ports},
{"trace_running", 6, trace_running},
{"trace_send", 6, trace_send},
{"trace_receive", 6, trace_receive},
@@ -132,6 +134,10 @@ static ERL_NIF_TERM atom_send;
static ERL_NIF_TERM atom_receive;
static ERL_NIF_TERM atom_send_to_non_existing_process;
+/* ports 'ports' */
+
+static ERL_NIF_TERM atom_open;
+static ERL_NIF_TERM atom_closed;
static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
{
@@ -176,6 +182,11 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
atom_receive = enif_make_atom(env,"receive");
atom_send_to_non_existing_process = enif_make_atom(env,"send_to_non_existing_process");
+ /* ports 'ports' */
+
+ atom_open = enif_make_atom(env,"open");
+ atom_closed = enif_make_atom(env,"closed");
+
return 0;
}
@@ -475,6 +486,53 @@ static ERL_NIF_TERM trace_procs(ErlNifEnv* env, int argc, const ERL_NIF_TERM arg
return atom_ok;
}
+static ERL_NIF_TERM trace_ports(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+#ifdef HAVE_USE_DTRACE
+#elif HAVE_USE_LTTNG
+ lttng_decl_portbuf(port);
+ lttng_decl_procbuf(to);
+
+ lttng_portid_to_str(argv[2], port);
+
+ /* open and closed */
+ if (argv[0] == atom_open) {
+ char driver[LTTNG_BUFFER_SZ];
+ lttng_decl_procbuf(pid);
+ lttng_pid_to_str(argv[3], pid);
+
+ erts_snprintf(driver, LTTNG_BUFFER_SZ, "%T", argv[4]);
+ LTTNG3(port_open, pid, driver, port);
+ } else if (argv[0] == atom_closed) {
+ char reason[LTTNG_BUFFER_SZ];
+ erts_snprintf(reason, LTTNG_BUFFER_SZ, "%T", argv[3]);
+
+ LTTNG2(port_exit, port, reason);
+ /* link */
+ } else if (argv[0] == atom_link) {
+ lttng_pid_to_str(argv[3], to);
+ LTTNG3(port_link, port, to, "link");
+ } else if (argv[0] == atom_unlink) {
+ lttng_pid_to_str(argv[3], to);
+ LTTNG3(port_link, port, to, "unlink");
+ } else if (argv[0] == atom_getting_linked) {
+ lttng_pid_to_str(argv[3], to);
+ LTTNG3(port_link, to, port, "link");
+ } else if (argv[0] == atom_getting_unlinked) {
+ lttng_pid_to_str(argv[3], to);
+ LTTNG3(port_link, to, port, "unlink");
+ } else {
+ int i;
+ erts_fprintf(stderr, "ports trace:\r\n");
+ for (i = 0; i < argc; i++) {
+ erts_fprintf(stderr, " %T\r\n", argv[i]);
+ }
+ }
+#endif
+ return atom_ok;
+}
+
+
static ERL_NIF_TERM trace_running(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
#ifdef HAVE_USE_DTRACE
diff --git a/lib/runtime_tools/c_src/dyntrace_lttng.h b/lib/runtime_tools/c_src/dyntrace_lttng.h
index 03cf8a27c1..2e0b921621 100644
--- a/lib/runtime_tools/c_src/dyntrace_lttng.h
+++ b/lib/runtime_tools/c_src/dyntrace_lttng.h
@@ -147,6 +147,53 @@ TRACEPOINT_EVENT(
)
)
+/* Ports */
+
+
+TRACEPOINT_EVENT(
+ com_ericsson_dyntrace,
+ port_open,
+ TP_ARGS(
+ char*, pid,
+ char*, driver,
+ char*, port
+ ),
+ TP_FIELDS(
+ ctf_string(pid, pid)
+ ctf_string(driver, driver)
+ ctf_string(port, port)
+ )
+)
+
+TRACEPOINT_EVENT(
+ com_ericsson_dyntrace,
+ port_exit,
+ TP_ARGS(
+ char*, port,
+ char*, reason
+ ),
+ TP_FIELDS(
+ ctf_string(port, port)
+ ctf_string(reason, reason)
+ )
+)
+
+TRACEPOINT_EVENT(
+ com_ericsson_dyntrace,
+ port_link,
+ TP_ARGS(
+ char*, from,
+ char*, to,
+ char*, type
+ ),
+ TP_FIELDS(
+ ctf_string(from, from)
+ ctf_string(to, to)
+ ctf_string(type, type)
+ )
+)
+
+
/* Process messages */
TRACEPOINT_EVENT(
diff --git a/lib/runtime_tools/src/dyntrace.erl b/lib/runtime_tools/src/dyntrace.erl
index aef4d9fab0..44c5e36242 100644
--- a/lib/runtime_tools/src/dyntrace.erl
+++ b/lib/runtime_tools/src/dyntrace.erl
@@ -45,6 +45,7 @@
trace/5,
trace/6,
trace_procs/6,
+ trace_ports/6,
trace_running/6,
trace_send/6,
trace_receive/6,
@@ -147,13 +148,18 @@ trace(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts
trace_procs(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
erlang:nif_error(nif_not_loaded).
+trace_ports(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
+ erlang:nif_error(nif_not_loaded).
+
trace_running(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
erlang:nif_error(nif_not_loaded).
trace_send(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
erlang:nif_error(nif_not_loaded).
+
trace_receive(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
erlang:nif_error(nif_not_loaded).
+
trace_garbage_collection(_TraceTag, _TracerState, _Tracee, _FirstTraceTerm, _SecondTraceTerm, _Opts) ->
erlang:nif_error(nif_not_loaded).