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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.4.123; envelope-from=vsementsov@virtuozzo.com; helo=EUR03-DB5-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) X-ZM-MESSAGEID: 1640116604002100001 Content-Type: text/plain; charset="utf-8" Add possibility to generate trace points for each qmp command. We should generate both trace points and trace-events file, for further trace point code generation. Signed-off-by: Vladimir Sementsov-Ogievskiy --- scripts/qapi/commands.py | 84 ++++++++++++++++++++++++++++++++++------ 1 file changed, 73 insertions(+), 11 deletions(-) diff --git a/scripts/qapi/commands.py b/scripts/qapi/commands.py index 21001bbd6b..e62f1a4125 100644 --- a/scripts/qapi/commands.py +++ b/scripts/qapi/commands.py @@ -53,7 +53,8 @@ def gen_command_decl(name: str, def gen_call(name: str, arg_type: Optional[QAPISchemaObjectType], boxed: bool, - ret_type: Optional[QAPISchemaType]) -> str: + ret_type: Optional[QAPISchemaType], + add_trace_points: bool) -> str: ret =3D '' =20 argstr =3D '' @@ -71,21 +72,65 @@ def gen_call(name: str, if ret_type: lhs =3D 'retval =3D ' =20 - ret =3D mcgen(''' + qmp_name =3D f'qmpq_{c_name(name)}' + upper =3D qmp_name.upper() + + if add_trace_points: + ret +=3D mcgen(''' + + if (trace_event_get_state_backends(TRACE_%(upper)s)) { + g_autoptr(GString) req_json =3D qobject_to_json(QOBJECT(args)); + trace_%(qmp_name)s("", req_json->str); + } + ''', + upper=3Dupper, qmp_name=3Dqmp_name) + + ret +=3D mcgen(''' =20 %(lhs)sqmp_%(c_name)s(%(args)s&err); - error_propagate(errp, err); ''', c_name=3Dc_name(name), args=3Dargstr, lhs=3Dlhs) - if ret_type: - ret +=3D mcgen(''' + + ret +=3D mcgen(''' if (err) { +''') + + if add_trace_points: + ret +=3D mcgen(''' + trace_%(qmp_name)s("FAIL: ", error_get_pretty(err)); +''', + qmp_name=3Dqmp_name) + + ret +=3D mcgen(''' + error_propagate(errp, err); goto out; } +''') + + if ret_type: + ret +=3D mcgen(''' =20 qmp_marshal_output_%(c_name)s(retval, ret, errp); ''', c_name=3Dret_type.c_name()) + + if add_trace_points: + if ret_type: + ret +=3D mcgen(''' + + if (trace_event_get_state_backends(TRACE_%(upper)s)) { + g_autoptr(GString) ret_json =3D qobject_to_json(*ret); + trace_%(qmp_name)s("RET:", ret_json->str); + } + ''', + upper=3Dupper, qmp_name=3Dqmp_name) + else: + ret +=3D mcgen(''' + + trace_%(qmp_name)s("SUCCESS", ""); + ''', + qmp_name=3Dqmp_name) + return ret =20 =20 @@ -122,10 +167,14 @@ def gen_marshal_decl(name: str) -> str: proto=3Dbuild_marshal_proto(name)) =20 =20 +def gen_trace(name: str) -> str: + return f'qmpq_{c_name(name)}(const char *tag, const char *json) "%s%s"= \n' + def gen_marshal(name: str, arg_type: Optional[QAPISchemaObjectType], boxed: bool, - ret_type: Optional[QAPISchemaType]) -> str: + ret_type: Optional[QAPISchemaType], + add_trace_points: bool) -> str: have_args =3D boxed or (arg_type and not arg_type.is_empty()) if have_args: assert arg_type is not None @@ -180,7 +229,7 @@ def gen_marshal(name: str, } ''') =20 - ret +=3D gen_call(name, arg_type, boxed, ret_type) + ret +=3D gen_call(name, arg_type, boxed, ret_type, add_trace_points) =20 ret +=3D mcgen(''' =20 @@ -238,11 +287,12 @@ def gen_register_command(name: str, =20 =20 class QAPISchemaGenCommandVisitor(QAPISchemaModularCVisitor): - def __init__(self, prefix: str): + def __init__(self, prefix: str, add_trace_points: bool): super().__init__( prefix, 'qapi-commands', ' * Schema-defined QAPI/QMP commands', None, __doc__) self._visited_ret_types: Dict[QAPIGenC, Set[QAPISchemaType]] =3D {} + self.add_trace_points =3D add_trace_points =20 def _begin_user_module(self, name: str) -> None: self._visited_ret_types[self._genc] =3D set() @@ -261,6 +311,15 @@ def _begin_user_module(self, name: str) -> None: =20 ''', commands=3Dcommands, visit=3Dvisit)) + + if self.add_trace_points and c_name(commands) !=3D 'qapi_commands': + self._genc.add(mcgen(''' +#include "trace/trace-qapi.h" +#include "qapi/qmp/qjson.h" +#include "trace/trace-%(nm)s_trace_events.h" +''', + nm=3Dc_name(commands))) + self._genh.add(mcgen(''' #include "%(types)s.h" =20 @@ -322,7 +381,9 @@ def visit_command(self, with ifcontext(ifcond, self._genh, self._genc): self._genh.add(gen_command_decl(name, arg_type, boxed, ret_typ= e)) self._genh.add(gen_marshal_decl(name)) - self._genc.add(gen_marshal(name, arg_type, boxed, ret_type)) + self._genc.add(gen_marshal(name, arg_type, boxed, ret_type, + self.add_trace_points)) + self._gent.add(gen_trace(name)) with self._temp_module('./init'): with ifcontext(ifcond, self._genh, self._genc): self._genc.add(gen_register_command( @@ -332,7 +393,8 @@ def visit_command(self, =20 def gen_commands(schema: QAPISchema, output_dir: str, - prefix: str) -> None: - vis =3D QAPISchemaGenCommandVisitor(prefix) + prefix: str, + add_trace_points: bool) -> None: + vis =3D QAPISchemaGenCommandVisitor(prefix, add_trace_points) schema.visit(vis) vis.write(output_dir) --=20 2.31.1