1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/compiler.h> 3 #include <stdio.h> 4 #include <string.h> 5 #include "builtin.h" 6 #include "perf.h" 7 #include "debug.h" 8 #include <subcmd/parse-options.h> 9 #include "data-convert.h" 10 11 typedef int (*data_cmd_fn_t)(int argc, const char **argv); 12 13 struct data_cmd { 14 const char *name; 15 const char *summary; 16 data_cmd_fn_t fn; 17 }; 18 19 static struct data_cmd data_cmds[]; 20 21 #define for_each_cmd(cmd) \ 22 for (cmd = data_cmds; cmd && cmd->name; cmd++) 23 24 static const char * const data_subcommands[] = { "convert", NULL }; 25 26 static const char *data_usage[] = { 27 "perf data convert [<options>]", 28 NULL 29 }; 30 31 const char *to_json; 32 const char *to_ctf; 33 struct perf_data_convert_opts opts = { 34 .force = false, 35 .all = false, 36 }; 37 38 const struct option data_options[] = { 39 OPT_INCR('v', "verbose", &verbose, "be more verbose"), 40 OPT_STRING('i', "input", &input_name, "file", "input file name"), 41 OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"), 42 #ifdef HAVE_LIBBABELTRACE_SUPPORT 43 OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"), 44 OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"), 45 #endif 46 OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"), 47 OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"), 48 OPT_END() 49 }; 50 51 static int cmd_data_convert(int argc, const char **argv) 52 { 53 54 argc = parse_options(argc, argv, data_options, 55 data_usage, 0); 56 if (argc) { 57 usage_with_options(data_usage, data_options); 58 return -1; 59 } 60 61 if (to_json && to_ctf) { 62 pr_err("You cannot specify both --to-ctf and --to-json.\n"); 63 return -1; 64 } 65 #ifdef HAVE_LIBBABELTRACE_SUPPORT 66 if (!to_json && !to_ctf) { 67 pr_err("You must specify one of --to-ctf or --to-json.\n"); 68 return -1; 69 } 70 #else 71 if (!to_json) { 72 pr_err("You must specify --to-json.\n"); 73 return -1; 74 } 75 #endif 76 77 if (to_json) 78 return bt_convert__perf2json(input_name, to_json, &opts); 79 80 if (to_ctf) { 81 #ifdef HAVE_LIBBABELTRACE_SUPPORT 82 return bt_convert__perf2ctf(input_name, to_ctf, &opts); 83 #else 84 pr_err("The libbabeltrace support is not compiled in. perf should be " 85 "compiled with environment variables LIBBABELTRACE=1 and " 86 "LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n"); 87 return -1; 88 #endif 89 } 90 91 return 0; 92 } 93 94 static struct data_cmd data_cmds[] = { 95 { "convert", "converts data file between formats", cmd_data_convert }, 96 { .name = NULL, }, 97 }; 98 99 int cmd_data(int argc, const char **argv) 100 { 101 struct data_cmd *cmd; 102 const char *cmdstr; 103 104 argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage, 105 PARSE_OPT_STOP_AT_NON_OPTION); 106 107 if (!argc) { 108 usage_with_options(data_usage, data_options); 109 return -1; 110 } 111 112 cmdstr = argv[0]; 113 114 for_each_cmd(cmd) { 115 if (strcmp(cmd->name, cmdstr)) 116 continue; 117 118 return cmd->fn(argc, argv); 119 } 120 121 pr_err("Unknown command: %s\n", cmdstr); 122 usage_with_options(data_usage, data_options); 123 return -1; 124 } 125