Commit 9f587cc9 authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo

perf jevents: Combine table prefix and suffix writing

Combine into a single function to simplify, in a later change, writing
metrics separately.
Reviewed-by: default avatarKajol Jain <kjain@linux.ibm.com>
Signed-off-by: default avatarIan Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kang Minchul <tegongkang@gmail.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20230126233645.200509-9-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 6f8f98ab
......@@ -19,10 +19,10 @@ _sys_event_tables = []
# JsonEvent. Architecture standard events are in json files in the top
# f'{_args.starting_dir}/{_args.arch}' directory.
_arch_std_events = {}
# Track whether an events table is currently being defined and needs closing.
_close_table = False
# Events to write out when the table is closed
_pending_events = []
# Name of table to be written out
_pending_events_tblname = None
# Global BigCString shared by all structures.
_bcs = None
# Order specific JsonEvent attributes will be visited.
......@@ -378,24 +378,13 @@ def preprocess_arch_std_files(archpath: str) -> None:
_arch_std_events[event.metric_name.lower()] = event
def print_events_table_prefix(tblname: str) -> None:
"""Called when a new events table is started."""
global _close_table
if _close_table:
raise IOError('Printing table prefix but last table has no suffix')
_args.output_file.write(f'static const struct compact_pmu_event {tblname}[] = {{\n')
_close_table = True
def add_events_table_entries(item: os.DirEntry, topic: str) -> None:
"""Add contents of file to _pending_events table."""
if not _close_table:
raise IOError('Table entries missing prefix')
for e in read_json_events(item.path, topic):
_pending_events.append(e)
def print_events_table_suffix() -> None:
def print_pending_events() -> None:
"""Optionally close events table."""
def event_cmp_key(j: JsonEvent) -> Tuple[bool, str, str, str, str]:
......@@ -407,17 +396,19 @@ def print_events_table_suffix() -> None:
return (j.desc is not None, fix_none(j.topic), fix_none(j.name), fix_none(j.pmu),
fix_none(j.metric_name))
global _close_table
if not _close_table:
global _pending_events
if not _pending_events:
return
global _pending_events
global _pending_events_tblname
_args.output_file.write(
f'static const struct compact_pmu_event {_pending_events_tblname}[] = {{\n')
for event in sorted(_pending_events, key=event_cmp_key):
_args.output_file.write(event.to_c_string())
_pending_events = []
_args.output_file.write('};\n\n')
_close_table = False
def get_topic(topic: str) -> str:
if topic.endswith('metrics.json'):
......@@ -455,12 +446,13 @@ def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
# model directory, reset topic
if item.is_dir() and is_leaf_dir(item.path):
print_events_table_suffix()
print_pending_events()
tblname = file_name_to_table_name(parents, item.name)
if item.name == 'sys':
_sys_event_tables.append(tblname)
print_events_table_prefix(tblname)
global _pending_events_tblname
_pending_events_tblname = tblname
return
# base dir or too deep
......@@ -809,7 +801,7 @@ struct compact_pmu_event {
for arch in archs:
arch_path = f'{_args.starting_dir}/{arch}'
ftw(arch_path, [], process_one_file)
print_events_table_suffix()
print_pending_events()
print_mapping_table(archs)
print_system_mapping_table()
......
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