diff options
Diffstat (limited to '')
-rw-r--r-- | tools/bpf/bpftool/prog.c | 385 |
1 files changed, 240 insertions, 145 deletions
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c index 515d22952602..c81362a001ba 100644 --- a/tools/bpf/bpftool/prog.c +++ b/tools/bpf/bpftool/prog.c @@ -26,6 +26,7 @@ #include <bpf/btf.h> #include <bpf/hashmap.h> #include <bpf/libbpf.h> +#include <bpf/libbpf_internal.h> #include <bpf/skel_internal.h> #include "cfg.h" @@ -35,53 +36,28 @@ #define BPF_METADATA_PREFIX "bpf_metadata_" #define BPF_METADATA_PREFIX_LEN (sizeof(BPF_METADATA_PREFIX) - 1) -const char * const prog_type_name[] = { - [BPF_PROG_TYPE_UNSPEC] = "unspec", - [BPF_PROG_TYPE_SOCKET_FILTER] = "socket_filter", - [BPF_PROG_TYPE_KPROBE] = "kprobe", - [BPF_PROG_TYPE_SCHED_CLS] = "sched_cls", - [BPF_PROG_TYPE_SCHED_ACT] = "sched_act", - [BPF_PROG_TYPE_TRACEPOINT] = "tracepoint", - [BPF_PROG_TYPE_XDP] = "xdp", - [BPF_PROG_TYPE_PERF_EVENT] = "perf_event", - [BPF_PROG_TYPE_CGROUP_SKB] = "cgroup_skb", - [BPF_PROG_TYPE_CGROUP_SOCK] = "cgroup_sock", - [BPF_PROG_TYPE_LWT_IN] = "lwt_in", - [BPF_PROG_TYPE_LWT_OUT] = "lwt_out", - [BPF_PROG_TYPE_LWT_XMIT] = "lwt_xmit", - [BPF_PROG_TYPE_SOCK_OPS] = "sock_ops", - [BPF_PROG_TYPE_SK_SKB] = "sk_skb", - [BPF_PROG_TYPE_CGROUP_DEVICE] = "cgroup_device", - [BPF_PROG_TYPE_SK_MSG] = "sk_msg", - [BPF_PROG_TYPE_RAW_TRACEPOINT] = "raw_tracepoint", - [BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr", - [BPF_PROG_TYPE_LWT_SEG6LOCAL] = "lwt_seg6local", - [BPF_PROG_TYPE_LIRC_MODE2] = "lirc_mode2", - [BPF_PROG_TYPE_SK_REUSEPORT] = "sk_reuseport", - [BPF_PROG_TYPE_FLOW_DISSECTOR] = "flow_dissector", - [BPF_PROG_TYPE_CGROUP_SYSCTL] = "cgroup_sysctl", - [BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE] = "raw_tracepoint_writable", - [BPF_PROG_TYPE_CGROUP_SOCKOPT] = "cgroup_sockopt", - [BPF_PROG_TYPE_TRACING] = "tracing", - [BPF_PROG_TYPE_STRUCT_OPS] = "struct_ops", - [BPF_PROG_TYPE_EXT] = "ext", - [BPF_PROG_TYPE_LSM] = "lsm", - [BPF_PROG_TYPE_SK_LOOKUP] = "sk_lookup", -}; - -const size_t prog_type_name_size = ARRAY_SIZE(prog_type_name); - enum dump_mode { DUMP_JITED, DUMP_XLATED, }; +static const bool attach_types[] = { + [BPF_SK_SKB_STREAM_PARSER] = true, + [BPF_SK_SKB_STREAM_VERDICT] = true, + [BPF_SK_SKB_VERDICT] = true, + [BPF_SK_MSG_VERDICT] = true, + [BPF_FLOW_DISSECTOR] = true, + [__MAX_BPF_ATTACH_TYPE] = false, +}; + +/* Textual representations traditionally used by the program and kept around + * for the sake of backwards compatibility. + */ static const char * const attach_type_strings[] = { [BPF_SK_SKB_STREAM_PARSER] = "stream_parser", [BPF_SK_SKB_STREAM_VERDICT] = "stream_verdict", [BPF_SK_SKB_VERDICT] = "skb_verdict", [BPF_SK_MSG_VERDICT] = "msg_verdict", - [BPF_FLOW_DISSECTOR] = "flow_dissector", [__MAX_BPF_ATTACH_TYPE] = NULL, }; @@ -92,6 +68,14 @@ static enum bpf_attach_type parse_attach_type(const char *str) enum bpf_attach_type type; for (type = 0; type < __MAX_BPF_ATTACH_TYPE; type++) { + if (attach_types[type]) { + const char *attach_type_str; + + attach_type_str = libbpf_bpf_attach_type_str(type); + if (!strcmp(str, attach_type_str)) + return type; + } + if (attach_type_strings[type] && is_prefix(str, attach_type_strings[type])) return type; @@ -100,6 +84,76 @@ static enum bpf_attach_type parse_attach_type(const char *str) return __MAX_BPF_ATTACH_TYPE; } +static int prep_prog_info(struct bpf_prog_info *const info, enum dump_mode mode, + void **info_data, size_t *const info_data_sz) +{ + struct bpf_prog_info holder = {}; + size_t needed = 0; + void *ptr; + + if (mode == DUMP_JITED) { + holder.jited_prog_len = info->jited_prog_len; + needed += info->jited_prog_len; + } else { + holder.xlated_prog_len = info->xlated_prog_len; + needed += info->xlated_prog_len; + } + + holder.nr_jited_ksyms = info->nr_jited_ksyms; + needed += info->nr_jited_ksyms * sizeof(__u64); + + holder.nr_jited_func_lens = info->nr_jited_func_lens; + needed += info->nr_jited_func_lens * sizeof(__u32); + + holder.nr_func_info = info->nr_func_info; + holder.func_info_rec_size = info->func_info_rec_size; + needed += info->nr_func_info * info->func_info_rec_size; + + holder.nr_line_info = info->nr_line_info; + holder.line_info_rec_size = info->line_info_rec_size; + needed += info->nr_line_info * info->line_info_rec_size; + + holder.nr_jited_line_info = info->nr_jited_line_info; + holder.jited_line_info_rec_size = info->jited_line_info_rec_size; + needed += info->nr_jited_line_info * info->jited_line_info_rec_size; + + if (needed > *info_data_sz) { + ptr = realloc(*info_data, needed); + if (!ptr) + return -1; + + *info_data = ptr; + *info_data_sz = needed; + } + ptr = *info_data; + + if (mode == DUMP_JITED) { + holder.jited_prog_insns = ptr_to_u64(ptr); + ptr += holder.jited_prog_len; + } else { + holder.xlated_prog_insns = ptr_to_u64(ptr); + ptr += holder.xlated_prog_len; + } + + holder.jited_ksyms = ptr_to_u64(ptr); + ptr += holder.nr_jited_ksyms * sizeof(__u64); + + holder.jited_func_lens = ptr_to_u64(ptr); + ptr += holder.nr_jited_func_lens * sizeof(__u32); + + holder.func_info = ptr_to_u64(ptr); + ptr += holder.nr_func_info * holder.func_info_rec_size; + + holder.line_info = ptr_to_u64(ptr); + ptr += holder.nr_line_info * holder.line_info_rec_size; + + holder.jited_line_info = ptr_to_u64(ptr); + ptr += holder.nr_jited_line_info * holder.jited_line_info_rec_size; + + *info = holder; + return 0; +} + static void print_boot_time(__u64 nsecs, char *buf, unsigned int size) { struct timespec real_time_ts, boot_time_ts; @@ -354,17 +408,23 @@ out_free: free(value); } -static void print_prog_header_json(struct bpf_prog_info *info) +static void print_prog_header_json(struct bpf_prog_info *info, int fd) { + const char *prog_type_str; + char prog_name[MAX_PROG_FULL_NAME]; + jsonw_uint_field(json_wtr, "id", info->id); - if (info->type < ARRAY_SIZE(prog_type_name)) - jsonw_string_field(json_wtr, "type", - prog_type_name[info->type]); + prog_type_str = libbpf_bpf_prog_type_str(info->type); + + if (prog_type_str) + jsonw_string_field(json_wtr, "type", prog_type_str); else jsonw_uint_field(json_wtr, "type", info->type); - if (*info->name) - jsonw_string_field(json_wtr, "name", info->name); + if (*info->name) { + get_prog_full_name(info, fd, prog_name, sizeof(prog_name)); + jsonw_string_field(json_wtr, "name", prog_name); + } jsonw_name(json_wtr, "tag"); jsonw_printf(json_wtr, "\"" BPF_TAG_FMT "\"", @@ -385,7 +445,7 @@ static void print_prog_json(struct bpf_prog_info *info, int fd) char *memlock; jsonw_start_object(json_wtr); - print_prog_header_json(info); + print_prog_header_json(info, fd); print_dev_json(info->ifindex, info->netns_dev, info->netns_ino); if (info->load_time) { @@ -410,7 +470,7 @@ static void print_prog_json(struct bpf_prog_info *info, int fd) memlock = get_fdinfo(fd, "memlock"); if (memlock) - jsonw_int_field(json_wtr, "bytes_memlock", atoi(memlock)); + jsonw_int_field(json_wtr, "bytes_memlock", atoll(memlock)); free(memlock); if (info->nr_map_ids) @@ -437,16 +497,22 @@ static void print_prog_json(struct bpf_prog_info *info, int fd) jsonw_end_object(json_wtr); } -static void print_prog_header_plain(struct bpf_prog_info *info) +static void print_prog_header_plain(struct bpf_prog_info *info, int fd) { + const char *prog_type_str; + char prog_name[MAX_PROG_FULL_NAME]; + printf("%u: ", info->id); - if (info->type < ARRAY_SIZE(prog_type_name)) - printf("%s ", prog_type_name[info->type]); + prog_type_str = libbpf_bpf_prog_type_str(info->type); + if (prog_type_str) + printf("%s ", prog_type_str); else printf("type %u ", info->type); - if (*info->name) - printf("name %s ", info->name); + if (*info->name) { + get_prog_full_name(info, fd, prog_name, sizeof(prog_name)); + printf("name %s ", prog_name); + } printf("tag "); fprint_hex(stdout, info->tag, BPF_TAG_SIZE, ""); @@ -464,7 +530,7 @@ static void print_prog_plain(struct bpf_prog_info *info, int fd) { char *memlock; - print_prog_header_plain(info); + print_prog_header_plain(info, fd); if (info->load_time) { char buf[32]; @@ -571,7 +637,7 @@ static int do_show(int argc, char **argv) if (show_pinned) { prog_table = hashmap__new(hash_fn_for_key_as_id, equal_fn_for_key_as_id, NULL); - if (!prog_table) { + if (IS_ERR(prog_table)) { p_err("failed to create hashmap for pinned paths"); return -1; } @@ -639,8 +705,8 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, char func_sig[1024]; unsigned char *buf; __u32 member_len; + int fd, err = -1; ssize_t n; - int fd; if (mode == DUMP_JITED) { if (info->jited_prog_len == 0 || !info->jited_prog_insns) { @@ -679,7 +745,7 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, if (fd < 0) { p_err("can't open file %s: %s", filepath, strerror(errno)); - return -1; + goto exit_free; } n = write(fd, buf, member_len); @@ -687,7 +753,7 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, if (n != (ssize_t)member_len) { p_err("error writing output file: %s", n < 0 ? strerror(errno) : "short write"); - return -1; + goto exit_free; } if (json_output) @@ -701,7 +767,7 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, info->netns_ino, &disasm_opt); if (!name) - return -1; + goto exit_free; } if (info->nr_jited_func_lens && info->jited_func_lens) { @@ -796,23 +862,28 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, kernel_syms_destroy(&dd); } - btf__free(btf); + err = 0; - return 0; +exit_free: + btf__free(btf); + bpf_prog_linfo__free(prog_linfo); + return err; } static int do_dump(int argc, char **argv) { - struct bpf_prog_info_linear *info_linear; + struct bpf_prog_info info; + __u32 info_len = sizeof(info); + size_t info_data_sz = 0; + void *info_data = NULL; char *filepath = NULL; bool opcodes = false; bool visual = false; enum dump_mode mode; bool linum = false; - int *fds = NULL; int nb_fds, i = 0; + int *fds = NULL; int err = -1; - __u64 arrays; if (is_prefix(*argv, "jited")) { if (disasm_init()) @@ -872,43 +943,44 @@ static int do_dump(int argc, char **argv) goto exit_close; } - if (mode == DUMP_JITED) - arrays = 1UL << BPF_PROG_INFO_JITED_INSNS; - else - arrays = 1UL << BPF_PROG_INFO_XLATED_INSNS; - - arrays |= 1UL << BPF_PROG_INFO_JITED_KSYMS; - arrays |= 1UL << BPF_PROG_INFO_JITED_FUNC_LENS; - arrays |= 1UL << BPF_PROG_INFO_FUNC_INFO; - arrays |= 1UL << BPF_PROG_INFO_LINE_INFO; - arrays |= 1UL << BPF_PROG_INFO_JITED_LINE_INFO; - if (json_output && nb_fds > 1) jsonw_start_array(json_wtr); /* root array */ for (i = 0; i < nb_fds; i++) { - info_linear = bpf_program__get_prog_info_linear(fds[i], arrays); - if (IS_ERR_OR_NULL(info_linear)) { + memset(&info, 0, sizeof(info)); + + err = bpf_obj_get_info_by_fd(fds[i], &info, &info_len); + if (err) { + p_err("can't get prog info: %s", strerror(errno)); + break; + } + + err = prep_prog_info(&info, mode, &info_data, &info_data_sz); + if (err) { + p_err("can't grow prog info_data"); + break; + } + + err = bpf_obj_get_info_by_fd(fds[i], &info, &info_len); + if (err) { p_err("can't get prog info: %s", strerror(errno)); break; } if (json_output && nb_fds > 1) { jsonw_start_object(json_wtr); /* prog object */ - print_prog_header_json(&info_linear->info); + print_prog_header_json(&info, fds[i]); jsonw_name(json_wtr, "insns"); } else if (nb_fds > 1) { - print_prog_header_plain(&info_linear->info); + print_prog_header_plain(&info, fds[i]); } - err = prog_dump(&info_linear->info, mode, filepath, opcodes, - visual, linum); + err = prog_dump(&info, mode, filepath, opcodes, visual, linum); if (json_output && nb_fds > 1) jsonw_end_object(json_wtr); /* prog object */ else if (i != nb_fds - 1 && nb_fds > 1) printf("\n"); - free(info_linear); if (err) break; close(fds[i]); @@ -920,6 +992,7 @@ exit_close: for (; i < nb_fds; i++) close(fds[i]); exit_free: + free(info_data); free(fds); return err; } @@ -1187,12 +1260,12 @@ static int do_run(int argc, char **argv) { char *data_fname_in = NULL, *data_fname_out = NULL; char *ctx_fname_in = NULL, *ctx_fname_out = NULL; - struct bpf_prog_test_run_attr test_attr = {0}; const unsigned int default_size = SZ_32K; void *data_in = NULL, *data_out = NULL; void *ctx_in = NULL, *ctx_out = NULL; unsigned int repeat = 1; int fd, err; + LIBBPF_OPTS(bpf_test_run_opts, test_attr); if (!REQ_ARGS(4)) return -1; @@ -1310,14 +1383,13 @@ static int do_run(int argc, char **argv) goto free_ctx_in; } - test_attr.prog_fd = fd; test_attr.repeat = repeat; test_attr.data_in = data_in; test_attr.data_out = data_out; test_attr.ctx_in = ctx_in; test_attr.ctx_out = ctx_out; - err = bpf_prog_test_run_xattr(&test_attr); + err = bpf_prog_test_run_opts(fd, &test_attr); if (err) { p_err("failed to run program: %s", strerror(errno)); goto free_ctx_out; @@ -1387,7 +1459,6 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts, .relaxed_maps = relaxed_maps, ); - struct bpf_object_load_attr load_attr = { 0 }; enum bpf_attach_type expected_attach_type; struct map_replace *map_replace = NULL; struct bpf_program *prog = NULL, *pos; @@ -1409,8 +1480,6 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) while (argc) { if (is_prefix(*argv, "type")) { - char *type; - NEXT_ARG(); if (common_prog_type != BPF_PROG_TYPE_UNSPEC) { @@ -1420,21 +1489,26 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) if (!REQ_ARGS(1)) goto err_free_reuse_maps; - /* Put a '/' at the end of type to appease libbpf */ - type = malloc(strlen(*argv) + 2); - if (!type) { - p_err("mem alloc failed"); - goto err_free_reuse_maps; - } - *type = 0; - strcat(type, *argv); - strcat(type, "/"); + err = libbpf_prog_type_by_name(*argv, &common_prog_type, + &expected_attach_type); + if (err < 0) { + /* Put a '/' at the end of type to appease libbpf */ + char *type = malloc(strlen(*argv) + 2); - err = get_prog_type_by_name(type, &common_prog_type, - &expected_attach_type); - free(type); - if (err < 0) - goto err_free_reuse_maps; + if (!type) { + p_err("mem alloc failed"); + goto err_free_reuse_maps; + } + *type = 0; + strcat(type, *argv); + strcat(type, "/"); + + err = get_prog_type_by_name(type, &common_prog_type, + &expected_attach_type); + free(type); + if (err < 0) + goto err_free_reuse_maps; + } NEXT_ARG(); } else if (is_prefix(*argv, "map")) { @@ -1472,9 +1546,9 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) if (fd < 0) goto err_free_reuse_maps; - new_map_replace = reallocarray(map_replace, - old_map_fds + 1, - sizeof(*map_replace)); + new_map_replace = libbpf_reallocarray(map_replace, + old_map_fds + 1, + sizeof(*map_replace)); if (!new_map_replace) { p_err("mem alloc failed"); goto err_free_reuse_maps; @@ -1518,6 +1592,10 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) set_max_rlimit(); + if (verifier_logs) + /* log_level1 + log_level2 + stats, but not stable UAPI */ + open_opts.kernel_log_level = 1 + 2 + 4; + obj = bpf_object__open_file(file, &open_opts); if (libbpf_get_error(obj)) { p_err("failed to open object file"); @@ -1572,7 +1650,7 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) j = 0; idx = 0; bpf_object__for_each_map(map, obj) { - if (!bpf_map__is_offload_neutral(map)) + if (bpf_map__type(map) != BPF_MAP_TYPE_PERF_EVENT_ARRAY) bpf_map__set_ifindex(map, ifindex); if (j < old_map_fds && idx == map_replace[j].idx) { @@ -1597,12 +1675,7 @@ static int load_with_options(int argc, char **argv, bool first_prog_only) goto err_close_obj; } - load_attr.obj = obj; - if (verifier_logs) - /* log_level1 + log_level2 + stats, but not stable UAPI */ - load_attr.log_level = 1 + 2 + 4; - - err = bpf_object__load_xattr(&load_attr); + err = bpf_object__load(obj); if (err) { p_err("failed to load object file"); goto err_close_obj; @@ -1657,6 +1730,11 @@ err_unpin: else bpf_object__unpin_programs(obj, pinfile); err_close_obj: + if (!legacy_libbpf) { + p_info("Warning: bpftool is now running in libbpf strict mode and has more stringent requirements about BPF programs.\n" + "If it used to work for this object file but now doesn't, see --legacy option for more details.\n"); + } + bpf_object__close(obj); err_free_reuse_maps: for (i = 0; i < old_map_fds; i++) @@ -1689,17 +1767,19 @@ static int try_loader(struct gen_loader_opts *gen) sizeof(struct bpf_prog_desc)); int log_buf_sz = (1u << 24) - 1; int err, fds_before, fd_delta; - char *log_buf; + char *log_buf = NULL; ctx = alloca(ctx_sz); memset(ctx, 0, ctx_sz); ctx->sz = ctx_sz; - ctx->log_level = 1; - ctx->log_size = log_buf_sz; - log_buf = malloc(log_buf_sz); - if (!log_buf) - return -ENOMEM; - ctx->log_buf = (long) log_buf; + if (verifier_logs) { + ctx->log_level = 1 + 2 + 4; + ctx->log_size = log_buf_sz; + log_buf = malloc(log_buf_sz); + if (!log_buf) + return -ENOMEM; + ctx->log_buf = (long) log_buf; + } opts.ctx = ctx; opts.data = gen->data; opts.data_sz = gen->data_sz; @@ -1708,9 +1788,9 @@ static int try_loader(struct gen_loader_opts *gen) fds_before = count_open_fds(); err = bpf_load_and_run(&opts); fd_delta = count_open_fds() - fds_before; - if (err < 0) { + if (err < 0 || verifier_logs) { fprintf(stderr, "err %d\n%s\n%s", err, opts.errstr, log_buf); - if (fd_delta) + if (fd_delta && err < 0) fprintf(stderr, "loader prog leaked %d FDs\n", fd_delta); } @@ -1722,7 +1802,6 @@ static int do_loader(int argc, char **argv) { DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts); DECLARE_LIBBPF_OPTS(gen_loader_opts, gen); - struct bpf_object_load_attr load_attr = {}; struct bpf_object *obj; const char *file; int err = 0; @@ -1731,6 +1810,10 @@ static int do_loader(int argc, char **argv) return -1; file = GET_ARG(); + if (verifier_logs) + /* log_level1 + log_level2 + stats, but not stable UAPI */ + open_opts.kernel_log_level = 1 + 2 + 4; + obj = bpf_object__open_file(file, &open_opts); if (libbpf_get_error(obj)) { p_err("failed to open object file"); @@ -1741,12 +1824,7 @@ static int do_loader(int argc, char **argv) if (err) goto err_close_obj; - load_attr.obj = obj; - if (verifier_logs) - /* log_level1 + log_level2 + stats, but not stable UAPI */ - load_attr.log_level = 1 + 2 + 4; - - err = bpf_object__load_xattr(&load_attr); + err = bpf_object__load(obj); if (err) { p_err("failed to load object file"); goto err_close_obj; @@ -1884,7 +1962,7 @@ static int profile_parse_metrics(int argc, char **argv) int selected_cnt = 0; unsigned int i; - metric_cnt = sizeof(metrics) / sizeof(struct profile_metric); + metric_cnt = ARRAY_SIZE(metrics); while (argc > 0) { for (i = 0; i < metric_cnt; i++) { @@ -2016,41 +2094,58 @@ static void profile_print_readings(void) static char *profile_target_name(int tgt_fd) { - struct bpf_prog_info_linear *info_linear; - struct bpf_func_info *func_info; + struct bpf_func_info func_info; + struct bpf_prog_info info = {}; + __u32 info_len = sizeof(info); const struct btf_type *t; + __u32 func_info_rec_size; struct btf *btf = NULL; char *name = NULL; + int err; - info_linear = bpf_program__get_prog_info_linear( - tgt_fd, 1UL << BPF_PROG_INFO_FUNC_INFO); - if (IS_ERR_OR_NULL(info_linear)) { - p_err("failed to get info_linear for prog FD %d", tgt_fd); - return NULL; + err = bpf_obj_get_info_by_fd(tgt_fd, &info, &info_len); + if (err) { + p_err("failed to bpf_obj_get_info_by_fd for prog FD %d", tgt_fd); + goto out; } - if (info_linear->info.btf_id == 0) { + if (info.btf_id == 0) { p_err("prog FD %d doesn't have valid btf", tgt_fd); goto out; } - btf = btf__load_from_kernel_by_id(info_linear->info.btf_id); + func_info_rec_size = info.func_info_rec_size; + if (info.nr_func_info == 0) { + p_err("bpf_obj_get_info_by_fd for prog FD %d found 0 func_info", tgt_fd); + goto out; + } + + memset(&info, 0, sizeof(info)); + info.nr_func_info = 1; + info.func_info_rec_size = func_info_rec_size; + info.func_info = ptr_to_u64(&func_info); + + err = bpf_obj_get_info_by_fd(tgt_fd, &info, &info_len); + if (err) { + p_err("failed to get func_info for prog FD %d", tgt_fd); + goto out; + } + + btf = btf__load_from_kernel_by_id(info.btf_id); if (libbpf_get_error(btf)) { p_err("failed to load btf for prog FD %d", tgt_fd); goto out; } - func_info = u64_to_ptr(info_linear->info.func_info); - t = btf__type_by_id(btf, func_info[0].type_id); + t = btf__type_by_id(btf, func_info.type_id); if (!t) { p_err("btf %d doesn't have type %d", - info_linear->info.btf_id, func_info[0].type_id); + info.btf_id, func_info.type_id); goto out; } name = strdup(btf__name_by_offset(btf, t->name_off)); out: btf__free(btf); - free(info_linear); return name; } @@ -2175,10 +2270,10 @@ static int do_profile(int argc, char **argv) profile_obj->rodata->num_metric = num_metric; /* adjust map sizes */ - bpf_map__resize(profile_obj->maps.events, num_metric * num_cpu); - bpf_map__resize(profile_obj->maps.fentry_readings, num_metric); - bpf_map__resize(profile_obj->maps.accum_readings, num_metric); - bpf_map__resize(profile_obj->maps.counts, 1); + bpf_map__set_max_entries(profile_obj->maps.events, num_metric * num_cpu); + bpf_map__set_max_entries(profile_obj->maps.fentry_readings, num_metric); + bpf_map__set_max_entries(profile_obj->maps.accum_readings, num_metric); + bpf_map__set_max_entries(profile_obj->maps.counts, 1); /* change target name */ profile_tgt_name = profile_target_name(profile_tgt_fd); @@ -2268,8 +2363,8 @@ static int do_help(int argc, char **argv) " cgroup/sendmsg6 | cgroup/recvmsg4 | cgroup/recvmsg6 |\n" " cgroup/getsockopt | cgroup/setsockopt | cgroup/sock_release |\n" " struct_ops | fentry | fexit | freplace | sk_lookup }\n" - " ATTACH_TYPE := { msg_verdict | skb_verdict | stream_verdict |\n" - " stream_parser | flow_dissector }\n" + " ATTACH_TYPE := { sk_msg_verdict | sk_skb_verdict | sk_skb_stream_verdict |\n" + " sk_skb_stream_parser | flow_dissector }\n" " METRIC := { cycles | instructions | l1d_loads | llc_misses | itlb_misses | dtlb_misses }\n" " " HELP_SPEC_OPTIONS " |\n" " {-f|--bpffs} | {-m|--mapcompat} | {-n|--nomount} |\n" |