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This modernizes the string formatting to use Python 3.6+ features, providing clearer and more maintainable code while improving runtime performance. The conversion handles all formatting cases including simple variable substitution, multi-variable formatting, and complex format specifiers. Dynamic width formatting is converted from "%*s" to "{var:>{width}}" using proper alignment syntax. Template strings for generated C code properly escape braces using double-brace syntax to produce literal braces in the output. F-strings provide approximately 2x performance improvement over percent formatting and are the recommended approach in modern Python. Signed-off-by: Wander Lairson Costa Reviewed-by: Nam Cao Reviewed-by: Gabriele Monaco --- tools/verification/rvgen/__main__.py | 6 +-- tools/verification/rvgen/rvgen/automata.py | 6 +-- tools/verification/rvgen/rvgen/dot2c.py | 38 ++++++------- tools/verification/rvgen/rvgen/dot2k.py | 26 ++++----- tools/verification/rvgen/rvgen/generator.py | 59 ++++++++++----------- tools/verification/rvgen/rvgen/ltl2k.py | 30 +++++------ 6 files changed, 81 insertions(+), 84 deletions(-) diff --git a/tools/verification/rvgen/__main__.py b/tools/verification/rvgen/__main__.py index 3bd438f8476ed..50b7d4227fb16 100644 --- a/tools/verification/rvgen/__main__.py +++ b/tools/verification/rvgen/__main__.py @@ -45,7 +45,7 @@ if __name__ == '__main__': try: if params.subcmd == "monitor": - print("Opening and parsing the specification file %s" % params.spec) + print(f"Opening and parsing the specification file {params.spec}") if params.monitor_class == "da": monitor = dot2k(params.spec, params.monitor_type, vars(params)) elif params.monitor_class == "ltl": @@ -59,11 +59,11 @@ if __name__ == '__main__': print(f"There was an error processing {params.spec}: {e}", file=sys.stderr) sys.exit(1) - print("Writing the monitor into the directory %s" % monitor.name) + print(f"Writing the monitor into the directory {monitor.name}") monitor.print_files() print("Almost done, checklist") if params.subcmd == "monitor": - print(" - Edit the %s/%s.c to add the instrumentation" % (monitor.name, monitor.name)) + print(f" - Edit the {monitor.name}/{monitor.name}.c to add the instrumentation") print(monitor.fill_tracepoint_tooltip()) print(monitor.fill_makefile_tooltip()) print(monitor.fill_kconfig_tooltip()) diff --git a/tools/verification/rvgen/rvgen/automata.py b/tools/verification/rvgen/rvgen/automata.py index 6ecd5ccd8f3d3..bd8c04526be3a 100644 --- a/tools/verification/rvgen/rvgen/automata.py +++ b/tools/verification/rvgen/rvgen/automata.py @@ -39,11 +39,11 @@ class Automata: basename = ntpath.basename(self.__dot_path) if not basename.endswith(".dot") and not basename.endswith(".gv"): print("not a dot file") - raise AutomataError("not a dot file: %s" % self.__dot_path) + raise AutomataError(f"not a dot file: {self.__dot_path}") model_name = ntpath.splitext(basename)[0] if model_name.__len__() == 0: - raise AutomataError("not a dot file: %s" % self.__dot_path) + raise AutomataError(f"not a dot file: {self.__dot_path}") return model_name @@ -62,7 +62,7 @@ class Automata: line = dot_lines[cursor].split() if (line[0] != "digraph") and (line[1] != "state_automaton"): - raise AutomataError("Not a valid .dot format: %s" % self.__dot_path) + raise AutomataError(f"Not a valid .dot format: {self.__dot_path}") else: cursor += 1 return dot_lines diff --git a/tools/verification/rvgen/rvgen/dot2c.py b/tools/verification/rvgen/rvgen/dot2c.py index 74147ae2942f9..6a2ad4fbf7824 100644 --- a/tools/verification/rvgen/rvgen/dot2c.py +++ b/tools/verification/rvgen/rvgen/dot2c.py @@ -28,17 +28,17 @@ class Dot2c(Automata): def __get_enum_states_content(self) -> list[str]: buff = [] - buff.append("\t%s%s," % (self.initial_state, self.enum_suffix)) + buff.append(f"\t{self.initial_state}{self.enum_suffix},") for state in self.states: if state != self.initial_state: - buff.append("\t%s%s," % (state, self.enum_suffix)) - buff.append("\tstate_max%s," % (self.enum_suffix)) + buff.append(f"\t{state}{self.enum_suffix},") + buff.append(f"\tstate_max{self.enum_suffix},") return buff def format_states_enum(self) -> list[str]: buff = [] - buff.append("enum %s {" % self.enum_states_def) + buff.append(f"enum {self.enum_states_def} {{") buff += self.__get_enum_states_content() buff.append("};\n") @@ -47,15 +47,15 @@ class Dot2c(Automata): def __get_enum_events_content(self) -> list[str]: buff = [] for event in self.events: - buff.append("\t%s%s," % (event, self.enum_suffix)) + buff.append(f"\t{event}{self.enum_suffix},") - buff.append("\tevent_max%s," % self.enum_suffix) + buff.append(f"\tevent_max{self.enum_suffix},") return buff def format_events_enum(self) -> list[str]: buff = [] - buff.append("enum %s {" % self.enum_events_def) + buff.append(f"enum {self.enum_events_def} {{") buff += self.__get_enum_events_content() buff.append("};\n") @@ -71,25 +71,25 @@ class Dot2c(Automata): min_type = "unsigned int" if self.states.__len__() > 1000000: - raise AutomataError("Too many states: %d" % self.states.__len__()) + raise AutomataError(f"Too many states: {self.states.__len__()}") return min_type def format_automaton_definition(self) -> list[str]: min_type = self.get_minimun_type() buff = [] - buff.append("struct %s {" % self.struct_automaton_def) - buff.append("\tchar *state_names[state_max%s];" % (self.enum_suffix)) - buff.append("\tchar *event_names[event_max%s];" % (self.enum_suffix)) - buff.append("\t%s function[state_max%s][event_max%s];" % (min_type, self.enum_suffix, self.enum_suffix)) - buff.append("\t%s initial_state;" % min_type) - buff.append("\tbool final_states[state_max%s];" % (self.enum_suffix)) + buff.append(f"struct {self.struct_automaton_def} {{") + buff.append(f"\tchar *state_names[state_max{self.enum_suffix}];") + buff.append(f"\tchar *event_names[event_max{self.enum_suffix}];") + buff.append(f"\t{min_type} function[state_max{self.enum_suffix}][event_max{self.enum_suffix}];") + buff.append(f"\t{min_type} initial_state;") + buff.append(f"\tbool final_states[state_max{self.enum_suffix}];") buff.append("};\n") return buff def format_aut_init_header(self) -> list[str]: buff = [] - buff.append("static const struct %s %s = {" % (self.struct_automaton_def, self.var_automaton_def)) + buff.append(f"static const struct {self.struct_automaton_def} {self.var_automaton_def} = {{") return buff def __get_string_vector_per_line_content(self, entries: list[str]) -> str: @@ -134,9 +134,9 @@ class Dot2c(Automata): next_state = self.function[x][y] + self.enum_suffix if linetoolong: - line += "\t\t\t%s" % next_state + line += f"\t\t\t{next_state}" else: - line += "%*s" % (maxlen, next_state) + line += f"{next_state:>{maxlen}}" if y != nr_events-1: line += ",\n" if linetoolong else ", " else: @@ -180,7 +180,7 @@ class Dot2c(Automata): def format_aut_init_final_states(self) -> list[str]: buff = [] - buff.append("\t.final_states = { %s }," % self.get_aut_init_final_states()) + buff.append(f"\t.final_states = {{ {self.get_aut_init_final_states()} }},") return buff @@ -196,7 +196,7 @@ class Dot2c(Automata): def format_invalid_state(self) -> list[str]: buff = [] - buff.append("#define %s state_max%s\n" % (self.invalid_state_str, self.enum_suffix)) + buff.append(f"#define {self.invalid_state_str} state_max{self.enum_suffix}\n") return buff diff --git a/tools/verification/rvgen/rvgen/dot2k.py b/tools/verification/rvgen/rvgen/dot2k.py index 6128fe2384308..6d4151acc9fe3 100644 --- a/tools/verification/rvgen/rvgen/dot2k.py +++ b/tools/verification/rvgen/rvgen/dot2k.py @@ -19,7 +19,7 @@ class dot2k(Monitor, Dot2c): self.monitor_type = MonitorType Monitor.__init__(self, extra_params) Dot2c.__init__(self, file_path, extra_params.get("model_name")) - self.enum_suffix = "_%s" % self.name + self.enum_suffix = f"_{self.name}" def fill_monitor_type(self) -> str: return self.monitor_type.upper() @@ -27,7 +27,7 @@ class dot2k(Monitor, Dot2c): def fill_tracepoint_handlers_skel(self) -> str: buff = [] for event in self.events: - buff.append("static void handle_%s(void *data, /* XXX: fill header */)" % event) + buff.append(f"static void handle_{event}(void *data, /* XXX: fill header */)") buff.append("{") handle = "handle_event" if self.is_start_event(event): @@ -38,9 +38,9 @@ class dot2k(Monitor, Dot2c): handle = "handle_start_run_event" if self.monitor_type == "per_task": buff.append("\tstruct task_struct *p = /* XXX: how do I get p? */;"); - buff.append("\tda_%s(p, %s%s);" % (handle, event, self.enum_suffix)); + buff.append(f"\tda_{handle}(p, {event}{self.enum_suffix});"); else: - buff.append("\tda_%s(%s%s);" % (handle, event, self.enum_suffix)); + buff.append(f"\tda_{handle}({event}{self.enum_suffix});"); buff.append("}") buff.append("") return '\n'.join(buff) @@ -48,20 +48,20 @@ class dot2k(Monitor, Dot2c): def fill_tracepoint_attach_probe(self) -> str: buff = [] for event in self.events: - buff.append("\trv_attach_trace_probe(\"%s\", /* XXX: tracepoint */, handle_%s);" % (self.name, event)) + buff.append(f"\trv_attach_trace_probe(\"{self.name}\", /* XXX: tracepoint */, handle_{event});") return '\n'.join(buff) def fill_tracepoint_detach_helper(self) -> str: buff = [] for event in self.events: - buff.append("\trv_detach_trace_probe(\"%s\", /* XXX: tracepoint */, handle_%s);" % (self.name, event)) + buff.append(f"\trv_detach_trace_probe(\"{self.name}\", /* XXX: tracepoint */, handle_{event});") return '\n'.join(buff) def fill_model_h_header(self) -> list[str]: buff = [] buff.append("/* SPDX-License-Identifier: GPL-2.0 */") buff.append("/*") - buff.append(" * Automatically generated C representation of %s automaton" % (self.name)) + buff.append(f" * Automatically generated C representation of {self.name} automaton") buff.append(" * For further information about this format, see kernel documentation:") buff.append(" * Documentation/trace/rv/deterministic_automata.rst") buff.append(" */") @@ -75,10 +75,10 @@ class dot2k(Monitor, Dot2c): # # Adjust the definition names # - self.enum_states_def = "states_%s" % self.name - self.enum_events_def = "events_%s" % self.name - self.struct_automaton_def = "automaton_%s" % self.name - self.var_automaton_def = "automaton_%s" % self.name + self.enum_states_def = f"states_{self.name}" + self.enum_events_def = f"events_{self.name}" + self.struct_automaton_def = f"automaton_{self.name}" + self.var_automaton_def = f"automaton_{self.name}" buff = self.fill_model_h_header() buff += self.format_model() @@ -113,8 +113,8 @@ class dot2k(Monitor, Dot2c): tp_args.insert(0, tp_args_id) tp_proto_c = ", ".join([a+b for a,b in tp_args]) tp_args_c = ", ".join([b for a,b in tp_args]) - buff.append(" TP_PROTO(%s)," % tp_proto_c) - buff.append(" TP_ARGS(%s)" % tp_args_c) + buff.append(f" TP_PROTO({tp_proto_c}),") + buff.append(f" TP_ARGS({tp_args_c})") return '\n'.join(buff) def fill_main_c(self) -> str: diff --git a/tools/verification/rvgen/rvgen/generator.py b/tools/verification/rvgen/rvgen/generator.py index af1662e2c20a7..6d16fb68798a7 100644 --- a/tools/verification/rvgen/rvgen/generator.py +++ b/tools/verification/rvgen/rvgen/generator.py @@ -40,7 +40,7 @@ class RVGenerator: if platform.system() != "Linux": raise OSError("I can only run on Linux.") - kernel_path = os.path.join("/lib/modules/%s/build" % platform.release(), self.rv_dir) + kernel_path = os.path.join(f"/lib/modules/{platform.release()}/build", self.rv_dir) # if the current kernel is from a distro this may not be a full kernel tree # verify that one of the files we are going to modify is available @@ -69,11 +69,11 @@ class RVGenerator: return self._read_file(path) def fill_parent(self): - return "&rv_%s" % self.parent if self.parent else "NULL" + return f"&rv_{self.parent}" if self.parent else "NULL" def fill_include_parent(self): if self.parent: - return "#include \n" % (self.parent, self.parent) + return f"#include \n" return "" def fill_tracepoint_handlers_skel(self): @@ -119,7 +119,7 @@ class RVGenerator: buff = [] buff.append(" # XXX: add dependencies if there") if self.parent: - buff.append(" depends on RV_MON_%s" % self.parent.upper()) + buff.append(f" depends on RV_MON_{self.parent.upper()}") buff.append(" default y") return '\n'.join(buff) @@ -145,31 +145,30 @@ class RVGenerator: monitor_class_type = self.fill_monitor_class_type() if self.auto_patch: self._patch_file("rv_trace.h", - "// Add new monitors based on CONFIG_%s here" % monitor_class_type, - "#include " % (self.name, self.name)) - return " - Patching %s/rv_trace.h, double check the result" % self.rv_dir + f"// Add new monitors based on CONFIG_{monitor_class_type} here", + f"#include ") + return f" - Patching {self.rv_dir}/rv_trace.h, double check the result" - return """ - Edit %s/rv_trace.h: -Add this line where other tracepoints are included and %s is defined: -#include -""" % (self.rv_dir, monitor_class_type, self.name, self.name) + return f""" - Edit {self.rv_dir}/rv_trace.h: +Add this line where other tracepoints are included and {monitor_class_type} is defined: +#include +""" def _kconfig_marker(self, container=None) -> str: - return "# Add new %smonitors here" % (container + " " - if container else "") + return f"# Add new {container + ' ' if container else ''}monitors here" def fill_kconfig_tooltip(self): if self.auto_patch: # monitors with a container should stay together in the Kconfig self._patch_file("Kconfig", self._kconfig_marker(self.parent), - "source \"kernel/trace/rv/monitors/%s/Kconfig\"" % (self.name)) - return " - Patching %s/Kconfig, double check the result" % self.rv_dir + f"source \"kernel/trace/rv/monitors/{self.name}/Kconfig\"") + return f" - Patching {self.rv_dir}/Kconfig, double check the result" - return """ - Edit %s/Kconfig: + return f""" - Edit {self.rv_dir}/Kconfig: Add this line where other monitors are included: -source \"kernel/trace/rv/monitors/%s/Kconfig\" -""" % (self.rv_dir, self.name) +source \"kernel/trace/rv/monitors/{self.name}/Kconfig\" +""" def fill_makefile_tooltip(self): name = self.name @@ -177,18 +176,18 @@ source \"kernel/trace/rv/monitors/%s/Kconfig\" if self.auto_patch: self._patch_file("Makefile", "# Add new monitors here", - "obj-$(CONFIG_RV_MON_%s) += monitors/%s/%s.o" % (name_up, name, name)) - return " - Patching %s/Makefile, double check the result" % self.rv_dir + f"obj-$(CONFIG_RV_MON_{name_up}) += monitors/{name}/{name}.o") + return f" - Patching {self.rv_dir}/Makefile, double check the result" - return """ - Edit %s/Makefile: + return f""" - Edit {self.rv_dir}/Makefile: Add this line where other monitors are included: -obj-$(CONFIG_RV_MON_%s) += monitors/%s/%s.o -""" % (self.rv_dir, name_up, name, name) +obj-$(CONFIG_RV_MON_{name_up}) += monitors/{name}/{name}.o +""" def fill_monitor_tooltip(self): if self.auto_patch: - return " - Monitor created in %s/monitors/%s" % (self.rv_dir, self. name) - return " - Move %s/ to the kernel's monitor directory (%s/monitors)" % (self.name, self.rv_dir) + return f" - Monitor created in {self.rv_dir}/monitors/{self.name}" + return f" - Move {self.name}/ to the kernel's monitor directory ({self.rv_dir}/monitors)" def __create_directory(self): path = self.name @@ -205,13 +204,13 @@ obj-$(CONFIG_RV_MON_%s) += monitors/%s/%s.o file.close() def _create_file(self, file_name, content): - path = "%s/%s" % (self.name, file_name) + path = f"{self.name}/{file_name}" if self.auto_patch: path = os.path.join(self.rv_dir, "monitors", path) self.__write_file(path, content) def __get_main_name(self): - path = "%s/%s" % (self.name, "main.c") + path = f"{self.name}/main.c" if not os.path.exists(path): return "main.c" return "__main.c" @@ -221,11 +220,11 @@ obj-$(CONFIG_RV_MON_%s) += monitors/%s/%s.o self.__create_directory() - path = "%s.c" % self.name + path = f"{self.name}.c" self._create_file(path, main_c) model_h = self.fill_model_h() - path = "%s.h" % self.name + path = f"{self.name}.h" self._create_file(path, model_h) kconfig = self.fill_kconfig() @@ -256,5 +255,5 @@ class Monitor(RVGenerator): def print_files(self): super().print_files() trace_h = self.fill_trace_h() - path = "%s_trace.h" % self.name + path = f"{self.name}_trace.h" self._create_file(path, trace_h) diff --git a/tools/verification/rvgen/rvgen/ltl2k.py b/tools/verification/rvgen/rvgen/ltl2k.py index b075f98d50c47..fa9ea6d597095 100644 --- a/tools/verification/rvgen/rvgen/ltl2k.py +++ b/tools/verification/rvgen/rvgen/ltl2k.py @@ -73,7 +73,7 @@ class ltl2k(generator.Monitor): ] for node in self.ba: - buf.append("\tS%i," % node.id) + buf.append(f"\tS{node.id},") buf.append("\tRV_NUM_BA_STATES") buf.append("};") buf.append("static_assert(RV_NUM_BA_STATES <= RV_MAX_BA_STATES);") @@ -82,7 +82,7 @@ class ltl2k(generator.Monitor): def _fill_atoms(self): buf = ["enum ltl_atom {"] for a in sorted(self.atoms): - buf.append("\tLTL_%s," % a) + buf.append(f"\tLTL_{a},") buf.append("\tLTL_NUM_ATOM") buf.append("};") buf.append("static_assert(LTL_NUM_ATOM <= RV_MAX_LTL_ATOM);") @@ -96,7 +96,7 @@ class ltl2k(generator.Monitor): ] for name in self.atoms_abbr: - buf.append("\t\t\"%s\"," % name) + buf.append(f"\t\t\"{name}\",") buf.extend([ "\t};", @@ -113,19 +113,19 @@ class ltl2k(generator.Monitor): continue if isinstance(node.op, ltl2ba.AndOp): - buf.append("\tbool %s = %s && %s;" % (node, node.op.left, node.op.right)) + buf.append(f"\tbool {node} = {node.op.left} && {node.op.right};") required_values |= {str(node.op.left), str(node.op.right)} elif isinstance(node.op, ltl2ba.OrOp): - buf.append("\tbool %s = %s || %s;" % (node, node.op.left, node.op.right)) + buf.append(f"\tbool {node} = {node.op.left} || {node.op.right};") required_values |= {str(node.op.left), str(node.op.right)} elif isinstance(node.op, ltl2ba.NotOp): - buf.append("\tbool %s = !%s;" % (node, node.op.child)) + buf.append(f"\tbool {node} = !{node.op.child};") required_values.add(str(node.op.child)) for atom in self.atoms: if atom.lower() not in required_values: continue - buf.append("\tbool %s = test_bit(LTL_%s, mon->atoms);" % (atom.lower(), atom)) + buf.append(f"\tbool {atom.lower()} = test_bit(LTL_{atom}, mon->atoms);") buf.reverse() @@ -153,7 +153,7 @@ class ltl2k(generator.Monitor): ]) for node in self.ba: - buf.append("\tcase S%i:" % node.id) + buf.append(f"\tcase S{node.id}:") for o in sorted(node.outgoing): line = "\t\tif " @@ -163,7 +163,7 @@ class ltl2k(generator.Monitor): lines = break_long_line(line, indent) buf.extend(lines) - buf.append("\t\t\t__set_bit(S%i, next);" % o.id) + buf.append(f"\t\t\t__set_bit(S{o.id}, next);") buf.append("\t\tbreak;") buf.extend([ "\t}", @@ -197,7 +197,7 @@ class ltl2k(generator.Monitor): lines = break_long_line(line, indent) buf.extend(lines) - buf.append("\t\t__set_bit(S%i, mon->states);" % node.id) + buf.append(f"\t\t__set_bit(S{node.id}, mon->states);") buf.append("}") return buf @@ -205,23 +205,21 @@ class ltl2k(generator.Monitor): buff = [] buff.append("static void handle_example_event(void *data, /* XXX: fill header */)") buff.append("{") - buff.append("\tltl_atom_update(task, LTL_%s, true/false);" % self.atoms[0]) + buff.append(f"\tltl_atom_update(task, LTL_{self.atoms[0]}, true/false);") buff.append("}") buff.append("") return '\n'.join(buff) def fill_tracepoint_attach_probe(self): - return "\trv_attach_trace_probe(\"%s\", /* XXX: tracepoint */, handle_example_event);" \ - % self.name + return f"\trv_attach_trace_probe(\"{self.name}\", /* XXX: tracepoint */, handle_example_event);" def fill_tracepoint_detach_helper(self): - return "\trv_detach_trace_probe(\"%s\", /* XXX: tracepoint */, handle_sample_event);" \ - % self.name + return f"\trv_detach_trace_probe(\"{self.name}\", /* XXX: tracepoint */, handle_sample_event);" def fill_atoms_init(self): buff = [] for a in self.atoms: - buff.append("\tltl_atom_set(mon, LTL_%s, true/false);" % a) + buff.append(f"\tltl_atom_set(mon, LTL_{a}, true/false);") return '\n'.join(buff) def fill_model_h(self): -- 2.52.0