1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
15 #include <sys/ioctl.h>
16 #include <sys/types.h>
18 #include <sys/syscall.h>
20 #include <linux/err.h>
21 #include <linux/perf_event.h>
22 #include <linux/sizes.h>
26 #include <bpf/libbpf.h>
30 #include "xlated_dumper.h"
32 #define BPF_METADATA_PREFIX "bpf_metadata_"
33 #define BPF_METADATA_PREFIX_LEN (sizeof(BPF_METADATA_PREFIX) - 1)
35 const char * const prog_type_name[] = {
36 [BPF_PROG_TYPE_UNSPEC] = "unspec",
37 [BPF_PROG_TYPE_SOCKET_FILTER] = "socket_filter",
38 [BPF_PROG_TYPE_KPROBE] = "kprobe",
39 [BPF_PROG_TYPE_SCHED_CLS] = "sched_cls",
40 [BPF_PROG_TYPE_SCHED_ACT] = "sched_act",
41 [BPF_PROG_TYPE_TRACEPOINT] = "tracepoint",
42 [BPF_PROG_TYPE_XDP] = "xdp",
43 [BPF_PROG_TYPE_PERF_EVENT] = "perf_event",
44 [BPF_PROG_TYPE_CGROUP_SKB] = "cgroup_skb",
45 [BPF_PROG_TYPE_CGROUP_SOCK] = "cgroup_sock",
46 [BPF_PROG_TYPE_LWT_IN] = "lwt_in",
47 [BPF_PROG_TYPE_LWT_OUT] = "lwt_out",
48 [BPF_PROG_TYPE_LWT_XMIT] = "lwt_xmit",
49 [BPF_PROG_TYPE_SOCK_OPS] = "sock_ops",
50 [BPF_PROG_TYPE_SK_SKB] = "sk_skb",
51 [BPF_PROG_TYPE_CGROUP_DEVICE] = "cgroup_device",
52 [BPF_PROG_TYPE_SK_MSG] = "sk_msg",
53 [BPF_PROG_TYPE_RAW_TRACEPOINT] = "raw_tracepoint",
54 [BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr",
55 [BPF_PROG_TYPE_LWT_SEG6LOCAL] = "lwt_seg6local",
56 [BPF_PROG_TYPE_LIRC_MODE2] = "lirc_mode2",
57 [BPF_PROG_TYPE_SK_REUSEPORT] = "sk_reuseport",
58 [BPF_PROG_TYPE_FLOW_DISSECTOR] = "flow_dissector",
59 [BPF_PROG_TYPE_CGROUP_SYSCTL] = "cgroup_sysctl",
60 [BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE] = "raw_tracepoint_writable",
61 [BPF_PROG_TYPE_CGROUP_SOCKOPT] = "cgroup_sockopt",
62 [BPF_PROG_TYPE_TRACING] = "tracing",
63 [BPF_PROG_TYPE_STRUCT_OPS] = "struct_ops",
64 [BPF_PROG_TYPE_EXT] = "ext",
65 [BPF_PROG_TYPE_LSM] = "lsm",
66 [BPF_PROG_TYPE_SK_LOOKUP] = "sk_lookup",
69 const size_t prog_type_name_size = ARRAY_SIZE(prog_type_name);
76 static const char * const attach_type_strings[] = {
77 [BPF_SK_SKB_STREAM_PARSER] = "stream_parser",
78 [BPF_SK_SKB_STREAM_VERDICT] = "stream_verdict",
79 [BPF_SK_MSG_VERDICT] = "msg_verdict",
80 [BPF_FLOW_DISSECTOR] = "flow_dissector",
81 [__MAX_BPF_ATTACH_TYPE] = NULL,
84 static enum bpf_attach_type parse_attach_type(const char *str)
86 enum bpf_attach_type type;
88 for (type = 0; type < __MAX_BPF_ATTACH_TYPE; type++) {
89 if (attach_type_strings[type] &&
90 is_prefix(str, attach_type_strings[type]))
94 return __MAX_BPF_ATTACH_TYPE;
97 static void print_boot_time(__u64 nsecs, char *buf, unsigned int size)
99 struct timespec real_time_ts, boot_time_ts;
100 time_t wallclock_secs;
105 if (clock_gettime(CLOCK_REALTIME, &real_time_ts) ||
106 clock_gettime(CLOCK_BOOTTIME, &boot_time_ts)) {
107 perror("Can't read clocks");
108 snprintf(buf, size, "%llu", nsecs / 1000000000);
112 wallclock_secs = (real_time_ts.tv_sec - boot_time_ts.tv_sec) +
113 (real_time_ts.tv_nsec - boot_time_ts.tv_nsec + nsecs) /
117 if (!localtime_r(&wallclock_secs, &load_tm)) {
118 snprintf(buf, size, "%llu", nsecs / 1000000000);
123 strftime(buf, size, "%s", &load_tm);
125 strftime(buf, size, "%FT%T%z", &load_tm);
128 static void show_prog_maps(int fd, __u32 num_maps)
130 struct bpf_prog_info info = {};
131 __u32 len = sizeof(info);
132 __u32 map_ids[num_maps];
136 info.nr_map_ids = num_maps;
137 info.map_ids = ptr_to_u64(map_ids);
139 err = bpf_obj_get_info_by_fd(fd, &info, &len);
140 if (err || !info.nr_map_ids)
144 jsonw_name(json_wtr, "map_ids");
145 jsonw_start_array(json_wtr);
146 for (i = 0; i < info.nr_map_ids; i++)
147 jsonw_uint(json_wtr, map_ids[i]);
148 jsonw_end_array(json_wtr);
151 for (i = 0; i < info.nr_map_ids; i++)
152 printf("%u%s", map_ids[i],
153 i == info.nr_map_ids - 1 ? "" : ",");
157 static void *find_metadata(int prog_fd, struct bpf_map_info *map_info)
159 struct bpf_prog_info prog_info;
170 memset(&prog_info, 0, sizeof(prog_info));
171 prog_info_len = sizeof(prog_info);
172 ret = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
176 if (!prog_info.nr_map_ids)
179 map_ids = calloc(prog_info.nr_map_ids, sizeof(__u32));
183 nr_maps = prog_info.nr_map_ids;
184 memset(&prog_info, 0, sizeof(prog_info));
185 prog_info.nr_map_ids = nr_maps;
186 prog_info.map_ids = ptr_to_u64(map_ids);
187 prog_info_len = sizeof(prog_info);
189 ret = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
193 for (i = 0; i < prog_info.nr_map_ids; i++) {
194 map_fd = bpf_map_get_fd_by_id(map_ids[i]);
198 memset(map_info, 0, sizeof(*map_info));
199 map_info_len = sizeof(*map_info);
200 ret = bpf_obj_get_info_by_fd(map_fd, map_info, &map_info_len);
206 if (map_info->type != BPF_MAP_TYPE_ARRAY ||
207 map_info->key_size != sizeof(int) ||
208 map_info->max_entries != 1 ||
209 !map_info->btf_value_type_id ||
210 !strstr(map_info->name, ".rodata")) {
215 value = malloc(map_info->value_size);
221 if (bpf_map_lookup_elem(map_fd, &key, value)) {
237 static bool has_metadata_prefix(const char *s)
239 return strncmp(s, BPF_METADATA_PREFIX, BPF_METADATA_PREFIX_LEN) == 0;
242 static void show_prog_metadata(int fd, __u32 num_maps)
244 const struct btf_type *t_datasec, *t_var;
245 struct bpf_map_info map_info;
246 struct btf_var_secinfo *vsi;
247 bool printed_header = false;
248 struct btf *btf = NULL;
249 unsigned int i, vlen;
257 memset(&map_info, 0, sizeof(map_info));
258 value = find_metadata(fd, &map_info);
262 err = btf__get_from_id(map_info.btf_id, &btf);
266 t_datasec = btf__type_by_id(btf, map_info.btf_value_type_id);
267 if (!btf_is_datasec(t_datasec))
270 vlen = btf_vlen(t_datasec);
271 vsi = btf_var_secinfos(t_datasec);
273 /* We don't proceed to check the kinds of the elements of the DATASEC.
274 * The verifier enforces them to be BTF_KIND_VAR.
278 struct btf_dumper d = {
281 .is_plain_text = false,
284 for (i = 0; i < vlen; i++, vsi++) {
285 t_var = btf__type_by_id(btf, vsi->type);
286 name = btf__name_by_offset(btf, t_var->name_off);
288 if (!has_metadata_prefix(name))
291 if (!printed_header) {
292 jsonw_name(json_wtr, "metadata");
293 jsonw_start_object(json_wtr);
294 printed_header = true;
297 jsonw_name(json_wtr, name + BPF_METADATA_PREFIX_LEN);
298 err = btf_dumper_type(&d, t_var->type, value + vsi->offset);
300 p_err("btf dump failed: %d", err);
305 jsonw_end_object(json_wtr);
307 json_writer_t *btf_wtr = jsonw_new(stdout);
308 struct btf_dumper d = {
311 .is_plain_text = true,
315 p_err("jsonw alloc failed");
319 for (i = 0; i < vlen; i++, vsi++) {
320 t_var = btf__type_by_id(btf, vsi->type);
321 name = btf__name_by_offset(btf, t_var->name_off);
323 if (!has_metadata_prefix(name))
326 if (!printed_header) {
327 printf("\tmetadata:");
328 printed_header = true;
331 printf("\n\t\t%s = ", name + BPF_METADATA_PREFIX_LEN);
333 jsonw_reset(btf_wtr);
334 err = btf_dumper_type(&d, t_var->type, value + vsi->offset);
336 p_err("btf dump failed: %d", err);
341 jsonw_destroy(&btf_wtr);
349 static void print_prog_header_json(struct bpf_prog_info *info)
351 jsonw_uint_field(json_wtr, "id", info->id);
352 if (info->type < ARRAY_SIZE(prog_type_name))
353 jsonw_string_field(json_wtr, "type",
354 prog_type_name[info->type]);
356 jsonw_uint_field(json_wtr, "type", info->type);
359 jsonw_string_field(json_wtr, "name", info->name);
361 jsonw_name(json_wtr, "tag");
362 jsonw_printf(json_wtr, "\"" BPF_TAG_FMT "\"",
363 info->tag[0], info->tag[1], info->tag[2], info->tag[3],
364 info->tag[4], info->tag[5], info->tag[6], info->tag[7]);
366 jsonw_bool_field(json_wtr, "gpl_compatible", info->gpl_compatible);
367 if (info->run_time_ns) {
368 jsonw_uint_field(json_wtr, "run_time_ns", info->run_time_ns);
369 jsonw_uint_field(json_wtr, "run_cnt", info->run_cnt);
371 if (info->recursion_misses)
372 jsonw_uint_field(json_wtr, "recursion_misses", info->recursion_misses);
375 static void print_prog_json(struct bpf_prog_info *info, int fd)
379 jsonw_start_object(json_wtr);
380 print_prog_header_json(info);
381 print_dev_json(info->ifindex, info->netns_dev, info->netns_ino);
383 if (info->load_time) {
386 print_boot_time(info->load_time, buf, sizeof(buf));
388 /* Piggy back on load_time, since 0 uid is a valid one */
389 jsonw_name(json_wtr, "loaded_at");
390 jsonw_printf(json_wtr, "%s", buf);
391 jsonw_uint_field(json_wtr, "uid", info->created_by_uid);
394 jsonw_uint_field(json_wtr, "bytes_xlated", info->xlated_prog_len);
396 if (info->jited_prog_len) {
397 jsonw_bool_field(json_wtr, "jited", true);
398 jsonw_uint_field(json_wtr, "bytes_jited", info->jited_prog_len);
400 jsonw_bool_field(json_wtr, "jited", false);
403 memlock = get_fdinfo(fd, "memlock");
405 jsonw_int_field(json_wtr, "bytes_memlock", atoi(memlock));
408 if (info->nr_map_ids)
409 show_prog_maps(fd, info->nr_map_ids);
412 jsonw_int_field(json_wtr, "btf_id", info->btf_id);
414 if (!hash_empty(prog_table.table)) {
415 struct pinned_obj *obj;
417 jsonw_name(json_wtr, "pinned");
418 jsonw_start_array(json_wtr);
419 hash_for_each_possible(prog_table.table, obj, hash, info->id) {
420 if (obj->id == info->id)
421 jsonw_string(json_wtr, obj->path);
423 jsonw_end_array(json_wtr);
426 emit_obj_refs_json(&refs_table, info->id, json_wtr);
428 show_prog_metadata(fd, info->nr_map_ids);
430 jsonw_end_object(json_wtr);
433 static void print_prog_header_plain(struct bpf_prog_info *info)
435 printf("%u: ", info->id);
436 if (info->type < ARRAY_SIZE(prog_type_name))
437 printf("%s ", prog_type_name[info->type]);
439 printf("type %u ", info->type);
442 printf("name %s ", info->name);
445 fprint_hex(stdout, info->tag, BPF_TAG_SIZE, "");
446 print_dev_plain(info->ifindex, info->netns_dev, info->netns_ino);
447 printf("%s", info->gpl_compatible ? " gpl" : "");
448 if (info->run_time_ns)
449 printf(" run_time_ns %lld run_cnt %lld",
450 info->run_time_ns, info->run_cnt);
451 if (info->recursion_misses)
452 printf(" recursion_misses %lld", info->recursion_misses);
456 static void print_prog_plain(struct bpf_prog_info *info, int fd)
460 print_prog_header_plain(info);
462 if (info->load_time) {
465 print_boot_time(info->load_time, buf, sizeof(buf));
467 /* Piggy back on load_time, since 0 uid is a valid one */
468 printf("\tloaded_at %s uid %u\n", buf, info->created_by_uid);
471 printf("\txlated %uB", info->xlated_prog_len);
473 if (info->jited_prog_len)
474 printf(" jited %uB", info->jited_prog_len);
476 printf(" not jited");
478 memlock = get_fdinfo(fd, "memlock");
480 printf(" memlock %sB", memlock);
483 if (info->nr_map_ids)
484 show_prog_maps(fd, info->nr_map_ids);
486 if (!hash_empty(prog_table.table)) {
487 struct pinned_obj *obj;
489 hash_for_each_possible(prog_table.table, obj, hash, info->id) {
490 if (obj->id == info->id)
491 printf("\n\tpinned %s", obj->path);
496 printf("\n\tbtf_id %d", info->btf_id);
498 emit_obj_refs_plain(&refs_table, info->id, "\n\tpids ");
502 show_prog_metadata(fd, info->nr_map_ids);
505 static int show_prog(int fd)
507 struct bpf_prog_info info = {};
508 __u32 len = sizeof(info);
511 err = bpf_obj_get_info_by_fd(fd, &info, &len);
513 p_err("can't get prog info: %s", strerror(errno));
518 print_prog_json(&info, fd);
520 print_prog_plain(&info, fd);
525 static int do_show_subset(int argc, char **argv)
531 fds = malloc(sizeof(int));
533 p_err("mem alloc failed");
536 nb_fds = prog_parse_fds(&argc, &argv, &fds);
540 if (json_output && nb_fds > 1)
541 jsonw_start_array(json_wtr); /* root array */
542 for (i = 0; i < nb_fds; i++) {
543 err = show_prog(fds[i]);
545 for (; i < nb_fds; i++)
551 if (json_output && nb_fds > 1)
552 jsonw_end_array(json_wtr); /* root array */
559 static int do_show(int argc, char **argv)
566 build_pinned_obj_table(&prog_table, BPF_OBJ_PROG);
567 build_obj_refs_table(&refs_table, BPF_OBJ_PROG);
570 return do_show_subset(argc, argv);
576 jsonw_start_array(json_wtr);
578 err = bpf_prog_get_next_id(id, &id);
580 if (errno == ENOENT) {
584 p_err("can't get next program: %s%s", strerror(errno),
585 errno == EINVAL ? " -- kernel too old?" : "");
590 fd = bpf_prog_get_fd_by_id(id);
594 p_err("can't get prog by id (%u): %s",
595 id, strerror(errno));
607 jsonw_end_array(json_wtr);
609 delete_obj_refs_table(&refs_table);
615 prog_dump(struct bpf_prog_info *info, enum dump_mode mode,
616 char *filepath, bool opcodes, bool visual, bool linum)
618 struct bpf_prog_linfo *prog_linfo = NULL;
619 const char *disasm_opt = NULL;
620 struct dump_data dd = {};
621 void *func_info = NULL;
622 struct btf *btf = NULL;
629 if (mode == DUMP_JITED) {
630 if (info->jited_prog_len == 0 || !info->jited_prog_insns) {
631 p_info("no instructions returned");
634 buf = u64_to_ptr(info->jited_prog_insns);
635 member_len = info->jited_prog_len;
636 } else { /* DUMP_XLATED */
637 if (info->xlated_prog_len == 0 || !info->xlated_prog_insns) {
638 p_err("error retrieving insn dump: kernel.kptr_restrict set?");
641 buf = u64_to_ptr(info->xlated_prog_insns);
642 member_len = info->xlated_prog_len;
645 if (info->btf_id && btf__get_from_id(info->btf_id, &btf)) {
646 p_err("failed to get btf");
650 func_info = u64_to_ptr(info->func_info);
652 if (info->nr_line_info) {
653 prog_linfo = bpf_prog_linfo__new(info);
655 p_info("error in processing bpf_line_info. continue without it.");
659 fd = open(filepath, O_WRONLY | O_CREAT | O_TRUNC, 0600);
661 p_err("can't open file %s: %s", filepath,
666 n = write(fd, buf, member_len);
668 if (n != (ssize_t)member_len) {
669 p_err("error writing output file: %s",
670 n < 0 ? strerror(errno) : "short write");
675 jsonw_null(json_wtr);
676 } else if (mode == DUMP_JITED) {
677 const char *name = NULL;
680 name = ifindex_to_bfd_params(info->ifindex,
688 if (info->nr_jited_func_lens && info->jited_func_lens) {
689 struct kernel_sym *sym = NULL;
690 struct bpf_func_info *record;
691 char sym_name[SYM_MAX_NAME];
692 unsigned char *img = buf;
696 if (info->nr_jited_ksyms) {
697 kernel_syms_load(&dd);
698 ksyms = u64_to_ptr(info->jited_ksyms);
702 jsonw_start_array(json_wtr);
704 lens = u64_to_ptr(info->jited_func_lens);
705 for (i = 0; i < info->nr_jited_func_lens; i++) {
707 sym = kernel_syms_search(&dd, ksyms[i]);
709 sprintf(sym_name, "%s", sym->name);
711 sprintf(sym_name, "0x%016llx", ksyms[i]);
713 strcpy(sym_name, "unknown");
717 record = func_info + i * info->func_info_rec_size;
718 btf_dumper_type_only(btf, record->type_id,
724 jsonw_start_object(json_wtr);
725 if (func_info && func_sig[0] != '\0') {
726 jsonw_name(json_wtr, "proto");
727 jsonw_string(json_wtr, func_sig);
729 jsonw_name(json_wtr, "name");
730 jsonw_string(json_wtr, sym_name);
731 jsonw_name(json_wtr, "insns");
733 if (func_info && func_sig[0] != '\0')
734 printf("%s:\n", func_sig);
735 printf("%s:\n", sym_name);
738 disasm_print_insn(img, lens[i], opcodes,
739 name, disasm_opt, btf,
740 prog_linfo, ksyms[i], i,
746 jsonw_end_object(json_wtr);
752 jsonw_end_array(json_wtr);
754 disasm_print_insn(buf, member_len, opcodes, name,
755 disasm_opt, btf, NULL, 0, 0, false);
759 jsonw_null(json_wtr);
761 dump_xlated_cfg(buf, member_len);
763 kernel_syms_load(&dd);
764 dd.nr_jited_ksyms = info->nr_jited_ksyms;
765 dd.jited_ksyms = u64_to_ptr(info->jited_ksyms);
767 dd.func_info = func_info;
768 dd.finfo_rec_size = info->func_info_rec_size;
769 dd.prog_linfo = prog_linfo;
772 dump_xlated_json(&dd, buf, member_len, opcodes,
775 dump_xlated_plain(&dd, buf, member_len, opcodes,
777 kernel_syms_destroy(&dd);
783 static int do_dump(int argc, char **argv)
785 struct bpf_prog_info_linear *info_linear;
786 char *filepath = NULL;
787 bool opcodes = false;
796 if (is_prefix(*argv, "jited")) {
800 } else if (is_prefix(*argv, "xlated")) {
803 p_err("expected 'xlated' or 'jited', got: %s", *argv);
811 fds = malloc(sizeof(int));
813 p_err("mem alloc failed");
816 nb_fds = prog_parse_fds(&argc, &argv, &fds);
820 if (is_prefix(*argv, "file")) {
823 p_err("expected file path");
827 p_err("several programs matched");
833 } else if (is_prefix(*argv, "opcodes")) {
836 } else if (is_prefix(*argv, "visual")) {
838 p_err("several programs matched");
844 } else if (is_prefix(*argv, "linum")) {
854 if (mode == DUMP_JITED)
855 arrays = 1UL << BPF_PROG_INFO_JITED_INSNS;
857 arrays = 1UL << BPF_PROG_INFO_XLATED_INSNS;
859 arrays |= 1UL << BPF_PROG_INFO_JITED_KSYMS;
860 arrays |= 1UL << BPF_PROG_INFO_JITED_FUNC_LENS;
861 arrays |= 1UL << BPF_PROG_INFO_FUNC_INFO;
862 arrays |= 1UL << BPF_PROG_INFO_LINE_INFO;
863 arrays |= 1UL << BPF_PROG_INFO_JITED_LINE_INFO;
865 if (json_output && nb_fds > 1)
866 jsonw_start_array(json_wtr); /* root array */
867 for (i = 0; i < nb_fds; i++) {
868 info_linear = bpf_program__get_prog_info_linear(fds[i], arrays);
869 if (IS_ERR_OR_NULL(info_linear)) {
870 p_err("can't get prog info: %s", strerror(errno));
874 if (json_output && nb_fds > 1) {
875 jsonw_start_object(json_wtr); /* prog object */
876 print_prog_header_json(&info_linear->info);
877 jsonw_name(json_wtr, "insns");
878 } else if (nb_fds > 1) {
879 print_prog_header_plain(&info_linear->info);
882 err = prog_dump(&info_linear->info, mode, filepath, opcodes,
885 if (json_output && nb_fds > 1)
886 jsonw_end_object(json_wtr); /* prog object */
887 else if (i != nb_fds - 1 && nb_fds > 1)
895 if (json_output && nb_fds > 1)
896 jsonw_end_array(json_wtr); /* root array */
899 for (; i < nb_fds; i++)
906 static int do_pin(int argc, char **argv)
910 err = do_pin_any(argc, argv, prog_parse_fd);
911 if (!err && json_output)
912 jsonw_null(json_wtr);
922 static int map_replace_compar(const void *p1, const void *p2)
924 const struct map_replace *a = p1, *b = p2;
926 return a->idx - b->idx;
929 static int parse_attach_detach_args(int argc, char **argv, int *progfd,
930 enum bpf_attach_type *attach_type,
936 *progfd = prog_parse_fd(&argc, &argv);
940 *attach_type = parse_attach_type(*argv);
941 if (*attach_type == __MAX_BPF_ATTACH_TYPE) {
942 p_err("invalid attach/detach type");
946 if (*attach_type == BPF_FLOW_DISSECTOR) {
955 *mapfd = map_parse_fd(&argc, &argv);
962 static int do_attach(int argc, char **argv)
964 enum bpf_attach_type attach_type;
968 err = parse_attach_detach_args(argc, argv,
969 &progfd, &attach_type, &mapfd);
973 err = bpf_prog_attach(progfd, mapfd, attach_type, 0);
975 p_err("failed prog attach to map");
980 jsonw_null(json_wtr);
984 static int do_detach(int argc, char **argv)
986 enum bpf_attach_type attach_type;
990 err = parse_attach_detach_args(argc, argv,
991 &progfd, &attach_type, &mapfd);
995 err = bpf_prog_detach2(progfd, mapfd, attach_type);
997 p_err("failed prog detach from map");
1002 jsonw_null(json_wtr);
1006 static int check_single_stdin(char *file_data_in, char *file_ctx_in)
1008 if (file_data_in && file_ctx_in &&
1009 !strcmp(file_data_in, "-") && !strcmp(file_ctx_in, "-")) {
1010 p_err("cannot use standard input for both data_in and ctx_in");
1017 static int get_run_data(const char *fname, void **data_ptr, unsigned int *size)
1019 size_t block_size = 256;
1020 size_t buf_size = block_size;
1031 if (!strcmp(fname, "-"))
1034 f = fopen(fname, "r");
1036 p_err("failed to open %s: %s", fname, strerror(errno));
1040 *data_ptr = malloc(block_size);
1042 p_err("failed to allocate memory for data_in/ctx_in: %s",
1047 while ((nb_read += fread(*data_ptr + nb_read, 1, block_size, f))) {
1051 p_err("failed to read data_in/ctx_in from %s: %s",
1052 fname, strerror(errno));
1055 if (nb_read > buf_size - block_size) {
1056 if (buf_size == UINT32_MAX) {
1057 p_err("data_in/ctx_in is too long (max: %d)",
1061 /* No space for fread()-ing next chunk; realloc() */
1063 tmp = realloc(*data_ptr, buf_size);
1065 p_err("failed to reallocate data_in/ctx_in: %s",
1087 static void hex_print(void *data, unsigned int size, FILE *f)
1092 for (i = 0; i < size; i += 16) {
1094 fprintf(f, "%07zx\t", i);
1096 /* Hexadecimal values */
1097 for (j = i; j < i + 16 && j < size; j++)
1098 fprintf(f, "%02x%s", *(uint8_t *)(data + j),
1100 for (; j < i + 16; j++)
1101 fprintf(f, " %s", j % 2 ? " " : "");
1103 /* ASCII values (if relevant), '.' otherwise */
1105 for (j = i; j < i + 16 && j < size; j++) {
1106 c = *(char *)(data + j);
1107 if (c < ' ' || c > '~')
1109 fprintf(f, "%c%s", c, j == i + 7 ? " " : "");
1117 print_run_output(void *data, unsigned int size, const char *fname,
1118 const char *json_key)
1126 if (!strcmp(fname, "-")) {
1129 jsonw_name(json_wtr, json_key);
1130 print_data_json(data, size);
1132 hex_print(data, size, f);
1137 f = fopen(fname, "w");
1139 p_err("failed to open %s: %s", fname, strerror(errno));
1143 nb_written = fwrite(data, 1, size, f);
1145 if (nb_written != size) {
1146 p_err("failed to write output data/ctx: %s", strerror(errno));
1153 static int alloc_run_data(void **data_ptr, unsigned int size_out)
1155 *data_ptr = calloc(size_out, 1);
1157 p_err("failed to allocate memory for output data/ctx: %s",
1165 static int do_run(int argc, char **argv)
1167 char *data_fname_in = NULL, *data_fname_out = NULL;
1168 char *ctx_fname_in = NULL, *ctx_fname_out = NULL;
1169 struct bpf_prog_test_run_attr test_attr = {0};
1170 const unsigned int default_size = SZ_32K;
1171 void *data_in = NULL, *data_out = NULL;
1172 void *ctx_in = NULL, *ctx_out = NULL;
1173 unsigned int repeat = 1;
1179 fd = prog_parse_fd(&argc, &argv);
1184 if (detect_common_prefix(*argv, "data_in", "data_out",
1185 "data_size_out", NULL))
1187 if (detect_common_prefix(*argv, "ctx_in", "ctx_out",
1188 "ctx_size_out", NULL))
1191 if (is_prefix(*argv, "data_in")) {
1196 data_fname_in = GET_ARG();
1197 if (check_single_stdin(data_fname_in, ctx_fname_in))
1199 } else if (is_prefix(*argv, "data_out")) {
1204 data_fname_out = GET_ARG();
1205 } else if (is_prefix(*argv, "data_size_out")) {
1212 test_attr.data_size_out = strtoul(*argv, &endptr, 0);
1214 p_err("can't parse %s as output data size",
1219 } else if (is_prefix(*argv, "ctx_in")) {
1224 ctx_fname_in = GET_ARG();
1225 if (check_single_stdin(data_fname_in, ctx_fname_in))
1227 } else if (is_prefix(*argv, "ctx_out")) {
1232 ctx_fname_out = GET_ARG();
1233 } else if (is_prefix(*argv, "ctx_size_out")) {
1240 test_attr.ctx_size_out = strtoul(*argv, &endptr, 0);
1242 p_err("can't parse %s as output context size",
1247 } else if (is_prefix(*argv, "repeat")) {
1254 repeat = strtoul(*argv, &endptr, 0);
1256 p_err("can't parse %s as repeat number",
1262 p_err("expected no more arguments, 'data_in', 'data_out', 'data_size_out', 'ctx_in', 'ctx_out', 'ctx_size_out' or 'repeat', got: '%s'?",
1268 err = get_run_data(data_fname_in, &data_in, &test_attr.data_size_in);
1273 if (!test_attr.data_size_out)
1274 test_attr.data_size_out = default_size;
1275 err = alloc_run_data(&data_out, test_attr.data_size_out);
1280 err = get_run_data(ctx_fname_in, &ctx_in, &test_attr.ctx_size_in);
1285 if (!test_attr.ctx_size_out)
1286 test_attr.ctx_size_out = default_size;
1287 err = alloc_run_data(&ctx_out, test_attr.ctx_size_out);
1292 test_attr.prog_fd = fd;
1293 test_attr.repeat = repeat;
1294 test_attr.data_in = data_in;
1295 test_attr.data_out = data_out;
1296 test_attr.ctx_in = ctx_in;
1297 test_attr.ctx_out = ctx_out;
1299 err = bpf_prog_test_run_xattr(&test_attr);
1301 p_err("failed to run program: %s", strerror(errno));
1308 jsonw_start_object(json_wtr); /* root */
1310 /* Do not exit on errors occurring when printing output data/context,
1311 * we still want to print return value and duration for program run.
1313 if (test_attr.data_size_out)
1314 err += print_run_output(test_attr.data_out,
1315 test_attr.data_size_out,
1316 data_fname_out, "data_out");
1317 if (test_attr.ctx_size_out)
1318 err += print_run_output(test_attr.ctx_out,
1319 test_attr.ctx_size_out,
1320 ctx_fname_out, "ctx_out");
1323 jsonw_uint_field(json_wtr, "retval", test_attr.retval);
1324 jsonw_uint_field(json_wtr, "duration", test_attr.duration);
1325 jsonw_end_object(json_wtr); /* root */
1327 fprintf(stdout, "Return value: %u, duration%s: %uns\n",
1329 repeat > 1 ? " (average)" : "", test_attr.duration);
1345 get_prog_type_by_name(const char *name, enum bpf_prog_type *prog_type,
1346 enum bpf_attach_type *expected_attach_type)
1348 libbpf_print_fn_t print_backup;
1351 ret = libbpf_prog_type_by_name(name, prog_type, expected_attach_type);
1355 /* libbpf_prog_type_by_name() failed, let's re-run with debug level */
1356 print_backup = libbpf_set_print(print_all_levels);
1357 ret = libbpf_prog_type_by_name(name, prog_type, expected_attach_type);
1358 libbpf_set_print(print_backup);
1363 static int load_with_options(int argc, char **argv, bool first_prog_only)
1365 enum bpf_prog_type common_prog_type = BPF_PROG_TYPE_UNSPEC;
1366 DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts,
1367 .relaxed_maps = relaxed_maps,
1369 struct bpf_object_load_attr load_attr = { 0 };
1370 enum bpf_attach_type expected_attach_type;
1371 struct map_replace *map_replace = NULL;
1372 struct bpf_program *prog = NULL, *pos;
1373 unsigned int old_map_fds = 0;
1374 const char *pinmaps = NULL;
1375 struct bpf_object *obj;
1376 struct bpf_map *map;
1377 const char *pinfile;
1387 pinfile = GET_ARG();
1390 if (is_prefix(*argv, "type")) {
1395 if (common_prog_type != BPF_PROG_TYPE_UNSPEC) {
1396 p_err("program type already specified");
1397 goto err_free_reuse_maps;
1400 goto err_free_reuse_maps;
1402 /* Put a '/' at the end of type to appease libbpf */
1403 type = malloc(strlen(*argv) + 2);
1405 p_err("mem alloc failed");
1406 goto err_free_reuse_maps;
1409 strcat(type, *argv);
1412 err = get_prog_type_by_name(type, &common_prog_type,
1413 &expected_attach_type);
1416 goto err_free_reuse_maps;
1419 } else if (is_prefix(*argv, "map")) {
1420 void *new_map_replace;
1421 char *endptr, *name;
1427 goto err_free_reuse_maps;
1429 if (is_prefix(*argv, "idx")) {
1432 idx = strtoul(*argv, &endptr, 0);
1434 p_err("can't parse %s as IDX", *argv);
1435 goto err_free_reuse_maps;
1438 } else if (is_prefix(*argv, "name")) {
1444 p_err("expected 'idx' or 'name', got: '%s'?",
1446 goto err_free_reuse_maps;
1450 fd = map_parse_fd(&argc, &argv);
1452 goto err_free_reuse_maps;
1454 new_map_replace = reallocarray(map_replace,
1456 sizeof(*map_replace));
1457 if (!new_map_replace) {
1458 p_err("mem alloc failed");
1459 goto err_free_reuse_maps;
1461 map_replace = new_map_replace;
1463 map_replace[old_map_fds].idx = idx;
1464 map_replace[old_map_fds].name = name;
1465 map_replace[old_map_fds].fd = fd;
1467 } else if (is_prefix(*argv, "dev")) {
1471 p_err("offload device already specified");
1472 goto err_free_reuse_maps;
1475 goto err_free_reuse_maps;
1477 ifindex = if_nametoindex(*argv);
1479 p_err("unrecognized netdevice '%s': %s",
1480 *argv, strerror(errno));
1481 goto err_free_reuse_maps;
1484 } else if (is_prefix(*argv, "pinmaps")) {
1488 goto err_free_reuse_maps;
1490 pinmaps = GET_ARG();
1492 p_err("expected no more arguments, 'type', 'map' or 'dev', got: '%s'?",
1494 goto err_free_reuse_maps;
1500 obj = bpf_object__open_file(file, &open_opts);
1501 if (IS_ERR_OR_NULL(obj)) {
1502 p_err("failed to open object file");
1503 goto err_free_reuse_maps;
1506 bpf_object__for_each_program(pos, obj) {
1507 enum bpf_prog_type prog_type = common_prog_type;
1509 if (prog_type == BPF_PROG_TYPE_UNSPEC) {
1510 const char *sec_name = bpf_program__section_name(pos);
1512 err = get_prog_type_by_name(sec_name, &prog_type,
1513 &expected_attach_type);
1518 bpf_program__set_ifindex(pos, ifindex);
1519 bpf_program__set_type(pos, prog_type);
1520 bpf_program__set_expected_attach_type(pos, expected_attach_type);
1523 qsort(map_replace, old_map_fds, sizeof(*map_replace),
1524 map_replace_compar);
1526 /* After the sort maps by name will be first on the list, because they
1527 * have idx == -1. Resolve them.
1530 while (j < old_map_fds && map_replace[j].name) {
1532 bpf_object__for_each_map(map, obj) {
1533 if (!strcmp(bpf_map__name(map), map_replace[j].name)) {
1534 map_replace[j].idx = i;
1539 if (map_replace[j].idx == -1) {
1540 p_err("unable to find map '%s'", map_replace[j].name);
1545 /* Resort if any names were resolved */
1547 qsort(map_replace, old_map_fds, sizeof(*map_replace),
1548 map_replace_compar);
1550 /* Set ifindex and name reuse */
1553 bpf_object__for_each_map(map, obj) {
1554 if (!bpf_map__is_offload_neutral(map))
1555 bpf_map__set_ifindex(map, ifindex);
1557 if (j < old_map_fds && idx == map_replace[j].idx) {
1558 err = bpf_map__reuse_fd(map, map_replace[j++].fd);
1560 p_err("unable to set up map reuse: %d", err);
1564 /* Next reuse wants to apply to the same map */
1565 if (j < old_map_fds && map_replace[j].idx == idx) {
1566 p_err("replacement for map idx %d specified more than once",
1574 if (j < old_map_fds) {
1575 p_err("map idx '%d' not used", map_replace[j].idx);
1579 load_attr.obj = obj;
1581 /* log_level1 + log_level2 + stats, but not stable UAPI */
1582 load_attr.log_level = 1 + 2 + 4;
1584 err = bpf_object__load_xattr(&load_attr);
1586 p_err("failed to load object file");
1590 err = mount_bpffs_for_pin(pinfile);
1594 if (first_prog_only) {
1595 prog = bpf_program__next(NULL, obj);
1597 p_err("object file doesn't contain any bpf program");
1601 err = bpf_obj_pin(bpf_program__fd(prog), pinfile);
1603 p_err("failed to pin program %s",
1604 bpf_program__section_name(prog));
1608 err = bpf_object__pin_programs(obj, pinfile);
1610 p_err("failed to pin all programs");
1616 err = bpf_object__pin_maps(obj, pinmaps);
1618 p_err("failed to pin all maps");
1624 jsonw_null(json_wtr);
1626 bpf_object__close(obj);
1627 for (i = 0; i < old_map_fds; i++)
1628 close(map_replace[i].fd);
1634 if (first_prog_only)
1637 bpf_object__unpin_programs(obj, pinfile);
1639 bpf_object__close(obj);
1640 err_free_reuse_maps:
1641 for (i = 0; i < old_map_fds; i++)
1642 close(map_replace[i].fd);
1647 static int do_load(int argc, char **argv)
1649 return load_with_options(argc, argv, true);
1652 static int do_loadall(int argc, char **argv)
1654 return load_with_options(argc, argv, false);
1657 #ifdef BPFTOOL_WITHOUT_SKELETONS
1659 static int do_profile(int argc, char **argv)
1661 p_err("bpftool prog profile command is not supported. Please build bpftool with clang >= 10.0.0");
1665 #else /* BPFTOOL_WITHOUT_SKELETONS */
1667 #include "profiler.skel.h"
1669 struct profile_metric {
1671 struct bpf_perf_event_value val;
1672 struct perf_event_attr attr;
1675 /* calculate ratios like instructions per cycle */
1676 const int ratio_metric; /* 0 for N/A, 1 for index 0 (cycles) */
1677 const char *ratio_desc;
1678 const float ratio_mul;
1683 .type = PERF_TYPE_HARDWARE,
1684 .config = PERF_COUNT_HW_CPU_CYCLES,
1689 .name = "instructions",
1691 .type = PERF_TYPE_HARDWARE,
1692 .config = PERF_COUNT_HW_INSTRUCTIONS,
1696 .ratio_desc = "insns per cycle",
1700 .name = "l1d_loads",
1702 .type = PERF_TYPE_HW_CACHE,
1704 PERF_COUNT_HW_CACHE_L1D |
1705 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1706 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16),
1711 .name = "llc_misses",
1713 .type = PERF_TYPE_HW_CACHE,
1715 PERF_COUNT_HW_CACHE_LL |
1716 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1717 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16),
1721 .ratio_desc = "LLC misses per million insns",
1725 .name = "itlb_misses",
1727 .type = PERF_TYPE_HW_CACHE,
1729 PERF_COUNT_HW_CACHE_ITLB |
1730 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1731 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16),
1735 .ratio_desc = "itlb misses per million insns",
1739 .name = "dtlb_misses",
1741 .type = PERF_TYPE_HW_CACHE,
1743 PERF_COUNT_HW_CACHE_DTLB |
1744 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1745 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16),
1749 .ratio_desc = "dtlb misses per million insns",
1754 static __u64 profile_total_count;
1756 #define MAX_NUM_PROFILE_METRICS 4
1758 static int profile_parse_metrics(int argc, char **argv)
1760 unsigned int metric_cnt;
1761 int selected_cnt = 0;
1764 metric_cnt = sizeof(metrics) / sizeof(struct profile_metric);
1767 for (i = 0; i < metric_cnt; i++) {
1768 if (is_prefix(argv[0], metrics[i].name)) {
1769 if (!metrics[i].selected)
1771 metrics[i].selected = true;
1775 if (i == metric_cnt) {
1776 p_err("unknown metric %s", argv[0]);
1781 if (selected_cnt > MAX_NUM_PROFILE_METRICS) {
1782 p_err("too many (%d) metrics, please specify no more than %d metrics at at time",
1783 selected_cnt, MAX_NUM_PROFILE_METRICS);
1786 return selected_cnt;
1789 static void profile_read_values(struct profiler_bpf *obj)
1791 __u32 m, cpu, num_cpu = obj->rodata->num_cpu;
1792 int reading_map_fd, count_map_fd;
1793 __u64 counts[num_cpu];
1797 reading_map_fd = bpf_map__fd(obj->maps.accum_readings);
1798 count_map_fd = bpf_map__fd(obj->maps.counts);
1799 if (reading_map_fd < 0 || count_map_fd < 0) {
1800 p_err("failed to get fd for map");
1804 err = bpf_map_lookup_elem(count_map_fd, &key, counts);
1806 p_err("failed to read count_map: %s", strerror(errno));
1810 profile_total_count = 0;
1811 for (cpu = 0; cpu < num_cpu; cpu++)
1812 profile_total_count += counts[cpu];
1814 for (m = 0; m < ARRAY_SIZE(metrics); m++) {
1815 struct bpf_perf_event_value values[num_cpu];
1817 if (!metrics[m].selected)
1820 err = bpf_map_lookup_elem(reading_map_fd, &key, values);
1822 p_err("failed to read reading_map: %s",
1826 for (cpu = 0; cpu < num_cpu; cpu++) {
1827 metrics[m].val.counter += values[cpu].counter;
1828 metrics[m].val.enabled += values[cpu].enabled;
1829 metrics[m].val.running += values[cpu].running;
1835 static void profile_print_readings_json(void)
1839 jsonw_start_array(json_wtr);
1840 for (m = 0; m < ARRAY_SIZE(metrics); m++) {
1841 if (!metrics[m].selected)
1843 jsonw_start_object(json_wtr);
1844 jsonw_string_field(json_wtr, "metric", metrics[m].name);
1845 jsonw_lluint_field(json_wtr, "run_cnt", profile_total_count);
1846 jsonw_lluint_field(json_wtr, "value", metrics[m].val.counter);
1847 jsonw_lluint_field(json_wtr, "enabled", metrics[m].val.enabled);
1848 jsonw_lluint_field(json_wtr, "running", metrics[m].val.running);
1850 jsonw_end_object(json_wtr);
1852 jsonw_end_array(json_wtr);
1855 static void profile_print_readings_plain(void)
1859 printf("\n%18llu %-20s\n", profile_total_count, "run_cnt");
1860 for (m = 0; m < ARRAY_SIZE(metrics); m++) {
1861 struct bpf_perf_event_value *val = &metrics[m].val;
1864 if (!metrics[m].selected)
1866 printf("%18llu %-20s", val->counter, metrics[m].name);
1868 r = metrics[m].ratio_metric - 1;
1869 if (r >= 0 && metrics[r].selected &&
1870 metrics[r].val.counter > 0) {
1871 printf("# %8.2f %-30s",
1872 val->counter * metrics[m].ratio_mul /
1873 metrics[r].val.counter,
1874 metrics[m].ratio_desc);
1876 printf("%-41s", "");
1879 if (val->enabled > val->running)
1881 val->running * 100.0 / val->enabled);
1886 static void profile_print_readings(void)
1889 profile_print_readings_json();
1891 profile_print_readings_plain();
1894 static char *profile_target_name(int tgt_fd)
1896 struct bpf_prog_info_linear *info_linear;
1897 struct bpf_func_info *func_info;
1898 const struct btf_type *t;
1902 info_linear = bpf_program__get_prog_info_linear(
1903 tgt_fd, 1UL << BPF_PROG_INFO_FUNC_INFO);
1904 if (IS_ERR_OR_NULL(info_linear)) {
1905 p_err("failed to get info_linear for prog FD %d", tgt_fd);
1909 if (info_linear->info.btf_id == 0 ||
1910 btf__get_from_id(info_linear->info.btf_id, &btf)) {
1911 p_err("prog FD %d doesn't have valid btf", tgt_fd);
1915 func_info = u64_to_ptr(info_linear->info.func_info);
1916 t = btf__type_by_id(btf, func_info[0].type_id);
1918 p_err("btf %d doesn't have type %d",
1919 info_linear->info.btf_id, func_info[0].type_id);
1922 name = strdup(btf__name_by_offset(btf, t->name_off));
1928 static struct profiler_bpf *profile_obj;
1929 static int profile_tgt_fd = -1;
1930 static char *profile_tgt_name;
1931 static int *profile_perf_events;
1932 static int profile_perf_event_cnt;
1934 static void profile_close_perf_events(struct profiler_bpf *obj)
1938 for (i = profile_perf_event_cnt - 1; i >= 0; i--)
1939 close(profile_perf_events[i]);
1941 free(profile_perf_events);
1942 profile_perf_event_cnt = 0;
1945 static int profile_open_perf_events(struct profiler_bpf *obj)
1947 unsigned int cpu, m;
1950 profile_perf_events = calloc(
1951 sizeof(int), obj->rodata->num_cpu * obj->rodata->num_metric);
1952 if (!profile_perf_events) {
1953 p_err("failed to allocate memory for perf_event array: %s",
1957 map_fd = bpf_map__fd(obj->maps.events);
1959 p_err("failed to get fd for events map");
1963 for (m = 0; m < ARRAY_SIZE(metrics); m++) {
1964 if (!metrics[m].selected)
1966 for (cpu = 0; cpu < obj->rodata->num_cpu; cpu++) {
1967 pmu_fd = syscall(__NR_perf_event_open, &metrics[m].attr,
1968 -1/*pid*/, cpu, -1/*group_fd*/, 0);
1970 bpf_map_update_elem(map_fd, &profile_perf_event_cnt,
1971 &pmu_fd, BPF_ANY) ||
1972 ioctl(pmu_fd, PERF_EVENT_IOC_ENABLE, 0)) {
1973 p_err("failed to create event %s on cpu %d",
1974 metrics[m].name, cpu);
1977 profile_perf_events[profile_perf_event_cnt++] = pmu_fd;
1983 static void profile_print_and_cleanup(void)
1985 profile_close_perf_events(profile_obj);
1986 profile_read_values(profile_obj);
1987 profile_print_readings();
1988 profiler_bpf__destroy(profile_obj);
1990 close(profile_tgt_fd);
1991 free(profile_tgt_name);
1994 static void int_exit(int signo)
1996 profile_print_and_cleanup();
2000 static int do_profile(int argc, char **argv)
2002 int num_metric, num_cpu, err = -1;
2003 struct bpf_program *prog;
2004 unsigned long duration;
2007 /* we at least need two args for the prog and one metric */
2011 /* parse target fd */
2012 profile_tgt_fd = prog_parse_fd(&argc, &argv);
2013 if (profile_tgt_fd < 0) {
2014 p_err("failed to parse fd");
2018 /* parse profiling optional duration */
2019 if (argc > 2 && is_prefix(argv[0], "duration")) {
2021 duration = strtoul(*argv, &endptr, 0);
2026 duration = UINT_MAX;
2029 num_metric = profile_parse_metrics(argc, argv);
2030 if (num_metric <= 0)
2033 num_cpu = libbpf_num_possible_cpus();
2035 p_err("failed to identify number of CPUs");
2039 profile_obj = profiler_bpf__open();
2041 p_err("failed to open and/or load BPF object");
2045 profile_obj->rodata->num_cpu = num_cpu;
2046 profile_obj->rodata->num_metric = num_metric;
2048 /* adjust map sizes */
2049 bpf_map__resize(profile_obj->maps.events, num_metric * num_cpu);
2050 bpf_map__resize(profile_obj->maps.fentry_readings, num_metric);
2051 bpf_map__resize(profile_obj->maps.accum_readings, num_metric);
2052 bpf_map__resize(profile_obj->maps.counts, 1);
2054 /* change target name */
2055 profile_tgt_name = profile_target_name(profile_tgt_fd);
2056 if (!profile_tgt_name)
2059 bpf_object__for_each_program(prog, profile_obj->obj) {
2060 err = bpf_program__set_attach_target(prog, profile_tgt_fd,
2063 p_err("failed to set attach target\n");
2069 err = profiler_bpf__load(profile_obj);
2071 p_err("failed to load profile_obj");
2075 err = profile_open_perf_events(profile_obj);
2079 err = profiler_bpf__attach(profile_obj);
2081 p_err("failed to attach profile_obj");
2084 signal(SIGINT, int_exit);
2087 profile_print_and_cleanup();
2091 profile_close_perf_events(profile_obj);
2093 profiler_bpf__destroy(profile_obj);
2094 close(profile_tgt_fd);
2095 free(profile_tgt_name);
2099 #endif /* BPFTOOL_WITHOUT_SKELETONS */
2101 static int do_help(int argc, char **argv)
2104 jsonw_null(json_wtr);
2109 "Usage: %1$s %2$s { show | list } [PROG]\n"
2110 " %1$s %2$s dump xlated PROG [{ file FILE | opcodes | visual | linum }]\n"
2111 " %1$s %2$s dump jited PROG [{ file FILE | opcodes | linum }]\n"
2112 " %1$s %2$s pin PROG FILE\n"
2113 " %1$s %2$s { load | loadall } OBJ PATH \\\n"
2114 " [type TYPE] [dev NAME] \\\n"
2115 " [map { idx IDX | name NAME } MAP]\\\n"
2116 " [pinmaps MAP_DIR]\n"
2117 " %1$s %2$s attach PROG ATTACH_TYPE [MAP]\n"
2118 " %1$s %2$s detach PROG ATTACH_TYPE [MAP]\n"
2119 " %1$s %2$s run PROG \\\n"
2120 " data_in FILE \\\n"
2121 " [data_out FILE [data_size_out L]] \\\n"
2122 " [ctx_in FILE [ctx_out FILE [ctx_size_out M]]] \\\n"
2124 " %1$s %2$s profile PROG [duration DURATION] METRICs\n"
2125 " %1$s %2$s tracelog\n"
2128 " " HELP_SPEC_MAP "\n"
2129 " " HELP_SPEC_PROGRAM "\n"
2130 " TYPE := { socket | kprobe | kretprobe | classifier | action |\n"
2131 " tracepoint | raw_tracepoint | xdp | perf_event | cgroup/skb |\n"
2132 " cgroup/sock | cgroup/dev | lwt_in | lwt_out | lwt_xmit |\n"
2133 " lwt_seg6local | sockops | sk_skb | sk_msg | lirc_mode2 |\n"
2134 " sk_reuseport | flow_dissector | cgroup/sysctl |\n"
2135 " cgroup/bind4 | cgroup/bind6 | cgroup/post_bind4 |\n"
2136 " cgroup/post_bind6 | cgroup/connect4 | cgroup/connect6 |\n"
2137 " cgroup/getpeername4 | cgroup/getpeername6 |\n"
2138 " cgroup/getsockname4 | cgroup/getsockname6 | cgroup/sendmsg4 |\n"
2139 " cgroup/sendmsg6 | cgroup/recvmsg4 | cgroup/recvmsg6 |\n"
2140 " cgroup/getsockopt | cgroup/setsockopt |\n"
2141 " struct_ops | fentry | fexit | freplace | sk_lookup }\n"
2142 " ATTACH_TYPE := { msg_verdict | stream_verdict | stream_parser |\n"
2143 " flow_dissector }\n"
2144 " METRIC := { cycles | instructions | l1d_loads | llc_misses | itlb_misses | dtlb_misses }\n"
2145 " " HELP_SPEC_OPTIONS "\n"
2147 bin_name, argv[-2]);
2152 static const struct cmd cmds[] = {
2153 { "show", do_show },
2154 { "list", do_show },
2155 { "help", do_help },
2156 { "dump", do_dump },
2158 { "load", do_load },
2159 { "loadall", do_loadall },
2160 { "attach", do_attach },
2161 { "detach", do_detach },
2162 { "tracelog", do_tracelog },
2164 { "profile", do_profile },
2168 int do_prog(int argc, char **argv)
2170 return cmd_select(cmds, argc, argv, do_help);