From: Sandeep Dasgupta <sdas...@google.com> Invoke the necessary configuration reading and parsing, then code generation. Handles command line arguments. Add a minor README.
Co-authored-by: Stephane Eranian <eran...@google.com> Co-authored-by: Ian Rogers <irog...@google.com> Signed-off-by: Ian Rogers <irog...@google.com> Signed-off-by: Sandeep Dasgupta <sdas...@google.com> --- tools/perf/pmu-events/topdown-parser/README | 5 + .../topdown-parser/topdown_parser_main.cpp | 155 ++++++++++++++++++ 2 files changed, 160 insertions(+) create mode 100644 tools/perf/pmu-events/topdown-parser/README create mode 100644 tools/perf/pmu-events/topdown-parser/topdown_parser_main.cpp diff --git a/tools/perf/pmu-events/topdown-parser/README b/tools/perf/pmu-events/topdown-parser/README new file mode 100644 index 000000000000..7f100792b00c --- /dev/null +++ b/tools/perf/pmu-events/topdown-parser/README @@ -0,0 +1,5 @@ +Topdown parser and code generator +================================= + +The topdown parser processes a TMA_Metrics.csv file and generates +Intel specific metrics from the data in the spreadsheet cells. \ No newline at end of file diff --git a/tools/perf/pmu-events/topdown-parser/topdown_parser_main.cpp b/tools/perf/pmu-events/topdown-parser/topdown_parser_main.cpp new file mode 100644 index 000000000000..ba9acd32726e --- /dev/null +++ b/tools/perf/pmu-events/topdown-parser/topdown_parser_main.cpp @@ -0,0 +1,155 @@ +/* + * Copyright 2020 Google LLC. + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <getopt.h> +#include <stdlib.h> + +#include <iostream> +#include <string> +#include <unordered_map> +#include <vector> + +#include "code_gen_target.h" +#include "configuration.h" +#include "csvreader.h" +#include "dependence_dag_utils.h" +#include "event_info.h" +#include "logging.h" + +namespace topdown_parser +{ +namespace +{ +/** + * Printing usage model + */ +[[noreturn]] void ShowUsage() +{ + std::cout + << "\n" + " Usage: topdown_parser --csv-file <csv input file>\n" + " --events-data-dir <path of event " + "encoding JSon files>\n" + " --config-file <path to " + "configuration.json>\n" + " --output-path <path to " + "output the topdown file(s)>\n" + " [Options]\n" + " Synopsis: Auto-generates topdown.c \n\n" + " Options\n" + "\t--dump-events : Dump the unique events for each metric.\n" + "generated topdown file. Used for testing.\n" + "\t--help : Show help\n"; + exit(0); +} + +/** + * The input csv file name specifying formula encoding for topdown + * metric + */ +char *g_CsvFile = nullptr; + +/** + * ProcessArgs parses command-line arguments + */ +bool ProcessArgs(int argc, char **argv) +{ + // The following command-line arguments to the program + // todown_parser are required: --csv-file <file>, + // --events-data-dir <dir>, --config-file <file> --output-path + // <path> + if (argc < 9) { + ShowUsage(); + return false; + } + + const char *const short_opts = "f:a:z:hdt"; + const option long_opts[] = { + { "csv-file", required_argument, nullptr, 'f' }, + { "events-data-dir", required_argument, nullptr, 'a' }, + { "config-file", required_argument, nullptr, 'z' }, + { "output-path", required_argument, nullptr, 'o' }, + { "dump-events", no_argument, nullptr, 'd' }, + { "help", no_argument, nullptr, 'h' }, + { nullptr, no_argument, nullptr, 0 } + }; + + while (true) { + const auto opt = + getopt_long(argc, argv, short_opts, long_opts, nullptr); + + if (opt == -1) + break; + + switch (opt) { + case 'f': + g_CsvFile = optarg; + break; + + case 'a': + kConfigParams->event_data_dir_ = optarg; + kConfigParams->event_data_dir_ += "/"; + break; + + case 'z': + kConfigParams->config_file_ = optarg; + break; + + case 'o': + kConfigParams->output_path_ = optarg; + break; + + case 'd': + g_DumpEvents = true; + break; + + case 'h': + case '?': + default: + ShowUsage(); + return false; + } + } + + INFO("csv filename: |" << g_CsvFile << "|"); + INFO("events data dir: |" << kConfigParams->event_data_dir_ << "|"); + INFO("config file : |" << kConfigParams->config_file_ << "|"); + return true; +} + +} // namespace + +} // namespace topdown_parser + +/** + * Main driver function for generating topdown files. + */ +int main(int argc, char *argv[]) +{ + bool process_arg_stat = topdown_parser::ProcessArgs(argc, argv); + if (!process_arg_stat) { + FATAL("Failed to process the command-line arguments"); + } + + // Read the configuration file "configuration.json" + int read_config_stat = topdown_parser::ReadConfig(); + if (read_config_stat != 0) { + FATAL("Failed to read configuration file"); + } + + // Read the input csv file + topdown_parser::CsvReader reader(topdown_parser::g_CsvFile); + std::vector<std::vector<std::string> > records = reader.getData(); + std::unordered_map<std::string, topdown_parser::MappedData> + dependence_dag = topdown_parser::ProcessRecords(&records); + + // Read and process the json files specifying the event encodings + topdown_parser::ProcessEventEncodings(); + + // Generate topdown files for a specific target (or purpose) + topdown_parser::CodeGenTarget(dependence_dag); + + return 0; +} -- 2.29.2.222.g5d2a92d10f8-goog