diff options
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
| -rwxr-xr-x | tools/perf/scripts/python/flamegraph.py | 107 |
1 files changed, 85 insertions, 22 deletions
diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py index b6af1dd5f816..cf7ce8229a6c 100755 --- a/tools/perf/scripts/python/flamegraph.py +++ b/tools/perf/scripts/python/flamegraph.py @@ -19,12 +19,34 @@ # pylint: disable=missing-function-docstring from __future__ import print_function -import sys -import os -import io import argparse +import hashlib +import io import json +import os import subprocess +import sys +import urllib.request + +minimal_html = """<head> + <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/d3-flamegraph.css"> +</head> +<body> + <div id="chart"></div> + <script type="text/javascript" src="https://d3js.org/d3.v7.js"></script> + <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/d3-flamegraph.min.js"></script> + <script type="text/javascript"> + const stacks = [/** @flamegraph_json **/]; + // Note, options is unused. + const options = [/** @options_json **/]; + + var chart = flamegraph(); + d3.select("#chart") + .datum(stacks[0]) + .call(chart); + </script> +</body> +""" # pylint: disable=too-few-public-methods class Node: @@ -50,16 +72,6 @@ class FlameGraphCLI: self.args = args self.stack = Node("all", "root") - if self.args.format == "html" and \ - not os.path.isfile(self.args.template): - print("Flame Graph template {} does not exist. Please install " - "the js-d3-flame-graph (RPM) or libjs-d3-flame-graph (deb) " - "package, specify an existing flame graph template " - "(--template PATH) or another output format " - "(--format FORMAT).".format(self.args.template), - file=sys.stderr) - sys.exit(1) - @staticmethod def get_libtype_from_dso(dso): """ @@ -128,16 +140,63 @@ class FlameGraphCLI: } options_json = json.dumps(options) + template_md5sum = None + if self.args.format == "html": + if os.path.isfile(self.args.template): + template = f"file://{self.args.template}" + else: + if not self.args.allow_download: + print(f"""Warning: Flame Graph template '{self.args.template}' +does not exist. To avoid this please install a package such as the +js-d3-flame-graph or libjs-d3-flame-graph, specify an existing flame +graph template (--template PATH) or use another output format (--format +FORMAT).""", + file=sys.stderr) + if self.args.input == "-": + print("""Not attempting to download Flame Graph template as script command line +input is disabled due to using live mode. If you want to download the +template retry without live mode. For example, use 'perf record -a -g +-F 99 sleep 60' and 'perf script report flamegraph'. Alternatively, +download the template from: +https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/d3-flamegraph-base.html +and place it at: +/usr/share/d3-flame-graph/d3-flamegraph-base.html""", + file=sys.stderr) + quit() + s = None + while s != "y" and s != "n": + s = input("Do you wish to download a template from cdn.jsdelivr.net? (this warning can be suppressed with --allow-download) [yn] ").lower() + if s == "n": + quit() + template = "https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/d3-flamegraph-base.html" + template_md5sum = "143e0d06ba69b8370b9848dcd6ae3f36" + try: - with io.open(self.args.template, encoding="utf-8") as template: - output_str = ( - template.read() - .replace("/** @options_json **/", options_json) - .replace("/** @flamegraph_json **/", stacks_json) - ) - except IOError as err: - print("Error reading template file: {}".format(err), file=sys.stderr) - sys.exit(1) + with urllib.request.urlopen(template) as template: + output_str = "".join([ + l.decode("utf-8") for l in template.readlines() + ]) + except Exception as err: + print(f"Error reading template {template}: {err}\n" + "a minimal flame graph will be generated", file=sys.stderr) + output_str = minimal_html + template_md5sum = None + + if template_md5sum: + download_md5sum = hashlib.md5(output_str.encode("utf-8")).hexdigest() + if download_md5sum != template_md5sum: + s = None + while s != "y" and s != "n": + s = input(f"""Unexpected template md5sum. +{download_md5sum} != {template_md5sum}, for: +{output_str} +continue?[yn] """).lower() + if s == "n": + quit() + + output_str = output_str.replace("/** @options_json **/", options_json) + output_str = output_str.replace("/** @flamegraph_json **/", stacks_json) + output_fn = self.args.output or "flamegraph.html" else: output_str = stacks_json @@ -172,6 +231,10 @@ if __name__ == "__main__": choices=["blue-green", "orange"]) parser.add_argument("-i", "--input", help=argparse.SUPPRESS) + parser.add_argument("--allow-download", + default=False, + action="store_true", + help="allow unprompted downloading of HTML template") cli_args = parser.parse_args() cli = FlameGraphCLI(cli_args) |