1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2018, Matthew Macy
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 */
28
29 #include <sys/types.h>
30 #include <sys/errno.h>
31 #include <sys/sysctl.h>
32 #include <stddef.h>
33 #include <stdlib.h>
34 #include <err.h>
35 #include <limits.h>
36 #include <string.h>
37 #include <pmc.h>
38 #include <pmclog.h>
39 #include <libpmcstat.h>
40 #include <sysexits.h>
41 #include <unistd.h>
42
43 #include <libpmcstat.h>
44 #include "cmd_pmc.h"
45
46 int pmc_displayheight = DEFAULT_DISPLAY_HEIGHT;
47 int pmc_displaywidth = DEFAULT_DISPLAY_WIDTH;
48 int pmc_kq;
49 struct pmcstat_args pmc_args;
50
51 struct pmcstat_pmcs pmcstat_pmcs = LIST_HEAD_INITIALIZER(pmcstat_pmcs);
52
53 struct pmcstat_image_hash_list pmcstat_image_hash[PMCSTAT_NHASH];
54
55 struct pmcstat_process_hash_list pmcstat_process_hash[PMCSTAT_NHASH];
56
57 struct cmd_handler {
58 const char *ch_name;
59 cmd_disp_t ch_fn;
60 };
61
62 static struct cmd_handler disp_table[] = {
63 {"stat", cmd_pmc_stat},
64 {"stat-system", cmd_pmc_stat_system},
65 {"list-events", cmd_pmc_list_events},
66 {"filter", cmd_pmc_filter},
67 {"summary", cmd_pmc_summary},
68 {NULL, NULL}
69 };
70
71 static void __dead2
usage(void)72 usage(void)
73 {
74 errx(EX_USAGE,
75 "\t pmc management utility\n"
76 "\t stat <program> run program and print stats\n"
77 "\t stat-system <program> run program and print system wide stats for duration of execution\n"
78 "\t list-events list PMC events available on host\n"
79 "\t filter filter records by lwp, pid, or event\n"
80 );
81 }
82
83 static cmd_disp_t
disp_lookup(char * name)84 disp_lookup(char *name)
85 {
86 struct cmd_handler *hnd;
87
88 for (hnd = disp_table; hnd->ch_name != NULL; hnd++)
89 if (strcmp(hnd->ch_name, name) == 0)
90 return (hnd->ch_fn);
91 return (NULL);
92 }
93
94 int
main(int argc,char ** argv)95 main(int argc, char **argv)
96 {
97 cmd_disp_t disp;
98
99 pmc_args.pa_printfile = stderr;
100 STAILQ_INIT(&pmc_args.pa_events);
101 SLIST_INIT(&pmc_args.pa_targets);
102 if (argc == 1)
103 usage();
104 if ((disp = disp_lookup(argv[1])) == NULL)
105 usage();
106 argc--;
107 argv++;
108
109 /* Allocate a kqueue */
110 if ((pmc_kq = kqueue()) < 0)
111 err(EX_OSERR, "ERROR: Cannot allocate kqueue");
112 if (pmc_init() < 0)
113 err(EX_UNAVAILABLE,
114 "ERROR: Initialization of the pmc(3) library failed"
115 );
116 return (disp(argc, argv));
117 }
118