Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
11typedef int (*data_cmd_fn_t)(int argc, const char **argv);
12
13struct data_cmd {
14 const char *name;
15 const char *summary;
16 data_cmd_fn_t fn;
17};
18
19static struct data_cmd data_cmds[];
20
21#define for_each_cmd(cmd) \
22 for (cmd = data_cmds; cmd && cmd->name; cmd++)
23
24static const struct option data_options[] = {
25 OPT_END()
26};
27
28static const char * const data_subcommands[] = { "convert", NULL };
29
30static const char *data_usage[] = {
31 "perf data [<common options>] <command> [<options>]",
32 NULL
33};
34
35static void print_usage(void)
36{
37 struct data_cmd *cmd;
38
39 printf("Usage:\n");
40 printf("\t%s\n\n", data_usage[0]);
41 printf("\tAvailable commands:\n");
42
43 for_each_cmd(cmd) {
44 printf("\t %s\t- %s\n", cmd->name, cmd->summary);
45 }
46
47 printf("\n");
48}
49
50static const char * const data_convert_usage[] = {
51 "perf data convert [<options>]",
52 NULL
53};
54
55static int cmd_data_convert(int argc, const char **argv)
56{
57 const char *to_json = NULL;
58 const char *to_ctf = NULL;
59 struct perf_data_convert_opts opts = {
60 .force = false,
61 .all = false,
62 };
63 const struct option options[] = {
64 OPT_INCR('v', "verbose", &verbose, "be more verbose"),
65 OPT_STRING('i', "input", &input_name, "file", "input file name"),
66 OPT_STRING(0, "to-json", &to_json, NULL, "Convert to JSON format"),
67#ifdef HAVE_LIBBABELTRACE_SUPPORT
68 OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
69 OPT_BOOLEAN(0, "tod", &opts.tod, "Convert time to wall clock time"),
70#endif
71 OPT_BOOLEAN('f', "force", &opts.force, "don't complain, do it"),
72 OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"),
73 OPT_END()
74 };
75
76 argc = parse_options(argc, argv, options,
77 data_convert_usage, 0);
78 if (argc) {
79 usage_with_options(data_convert_usage, options);
80 return -1;
81 }
82
83 if (to_json && to_ctf) {
84 pr_err("You cannot specify both --to-ctf and --to-json.\n");
85 return -1;
86 }
87 if (!to_json && !to_ctf) {
88 pr_err("You must specify one of --to-ctf or --to-json.\n");
89 return -1;
90 }
91
92 if (to_json)
93 return bt_convert__perf2json(input_name, to_json, &opts);
94
95 if (to_ctf) {
96#ifdef HAVE_LIBBABELTRACE_SUPPORT
97 return bt_convert__perf2ctf(input_name, to_ctf, &opts);
98#else
99 pr_err("The libbabeltrace support is not compiled in. perf should be "
100 "compiled with environment variables LIBBABELTRACE=1 and "
101 "LIBBABELTRACE_DIR=/path/to/libbabeltrace/\n");
102 return -1;
103#endif
104 }
105
106 return 0;
107}
108
109static struct data_cmd data_cmds[] = {
110 { "convert", "converts data file between formats", cmd_data_convert },
111 { .name = NULL, },
112};
113
114int cmd_data(int argc, const char **argv)
115{
116 struct data_cmd *cmd;
117 const char *cmdstr;
118
119 /* No command specified. */
120 if (argc < 2)
121 goto usage;
122
123 argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
124 PARSE_OPT_STOP_AT_NON_OPTION);
125 if (argc < 1)
126 goto usage;
127
128 cmdstr = argv[0];
129
130 for_each_cmd(cmd) {
131 if (strcmp(cmd->name, cmdstr))
132 continue;
133
134 return cmd->fn(argc, argv);
135 }
136
137 pr_err("Unknown command: %s\n", cmdstr);
138usage:
139 print_usage();
140 return -1;
141}