diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 38999e9c08e0..f07ff39a9d20 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -6662,8 +6662,10 @@ retry_load: ret = bpf_prog_load(prog->type, prog_name, license, insns, insns_cnt, &load_attr); if (ret >= 0) { - if (log_buf && load_attr.log_level) - pr_debug("verifier log:\n%s", log_buf); + if (log_buf && load_attr.log_level) { + pr_debug("prog '%s': -- BEGIN PROG LOAD LOG --\n%s-- END PROG LOAD LOG --\n", + prog->name, log_buf); + } if (obj->has_rodata && kernel_supports(obj, FEAT_PROG_BIND_MAP)) { struct bpf_map *map; @@ -6676,8 +6678,8 @@ retry_load: if (bpf_prog_bind_map(ret, bpf_map__fd(map), NULL)) { cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg)); - pr_warn("prog '%s': failed to bind .rodata map: %s\n", - prog->name, cp); + pr_warn("prog '%s': failed to bind map '%s': %s\n", + prog->name, map->real_name, cp); /* Don't fail hard if can't bind rodata. */ } } @@ -6691,23 +6693,22 @@ retry_load: if (!log_buf || errno == ENOSPC) { log_buf_size = max((size_t)BPF_LOG_BUF_SIZE, log_buf_size << 1); - free(log_buf); goto retry_load; } ret = errno ? -errno : -LIBBPF_ERRNO__LOAD; cp = libbpf_strerror_r(errno, errmsg, sizeof(errmsg)); - pr_warn("load bpf program failed: %s\n", cp); + pr_warn("prog '%s': BPF program load failed: %s\n", prog->name, cp); pr_perm_msg(ret); if (log_buf && log_buf[0] != '\0') { ret = -LIBBPF_ERRNO__VERIFY; - pr_warn("-- BEGIN DUMP LOG ---\n"); - pr_warn("\n%s\n", log_buf); - pr_warn("-- END LOG --\n"); - } else if (insns_cnt >= BPF_MAXINSNS) { - pr_warn("Program too large (%d insns), at most %d insns\n", - insns_cnt, BPF_MAXINSNS); + pr_warn("prog '%s': -- BEGIN PROG LOAD LOG --\n%s-- END PROG LOAD LOG --\n", + prog->name, log_buf); + } + if (insns_cnt >= BPF_MAXINSNS) { + pr_warn("prog '%s': program too large (%d insns), at most %d insns\n", + prog->name, insns_cnt, BPF_MAXINSNS); ret = -LIBBPF_ERRNO__PROG2BIG; } else if (prog->type != BPF_PROG_TYPE_KPROBE) { /* Wrong program type? */ @@ -6931,9 +6932,8 @@ static int bpf_object_init_progs(struct bpf_object *obj, const struct bpf_object return 0; } -static struct bpf_object * -__bpf_object__open(const char *path, const void *obj_buf, size_t obj_buf_sz, - const struct bpf_object_open_opts *opts) +static struct bpf_object *bpf_object_open(const char *path, const void *obj_buf, size_t obj_buf_sz, + const struct bpf_object_open_opts *opts) { const char *obj_name, *kconfig, *btf_tmp_path; struct bpf_object *obj; @@ -7033,7 +7033,7 @@ __bpf_object__open_xattr(struct bpf_object_open_attr *attr, int flags) return NULL; pr_debug("loading %s\n", attr->file); - return __bpf_object__open(attr->file, NULL, 0, &opts); + return bpf_object_open(attr->file, NULL, 0, &opts); } struct bpf_object *bpf_object__open_xattr(struct bpf_object_open_attr *attr) @@ -7059,7 +7059,7 @@ bpf_object__open_file(const char *path, const struct bpf_object_open_opts *opts) pr_debug("loading %s\n", path); - return libbpf_ptr(__bpf_object__open(path, NULL, 0, opts)); + return libbpf_ptr(bpf_object_open(path, NULL, 0, opts)); } struct bpf_object * @@ -7069,7 +7069,7 @@ bpf_object__open_mem(const void *obj_buf, size_t obj_buf_sz, if (!obj_buf || obj_buf_sz == 0) return libbpf_err_ptr(-EINVAL); - return libbpf_ptr(__bpf_object__open(NULL, obj_buf, obj_buf_sz, opts)); + return libbpf_ptr(bpf_object_open(NULL, obj_buf, obj_buf_sz, opts)); } struct bpf_object * @@ -7086,7 +7086,7 @@ bpf_object__open_buffer(const void *obj_buf, size_t obj_buf_sz, if (!obj_buf || obj_buf_sz == 0) return errno = EINVAL, NULL; - return libbpf_ptr(__bpf_object__open(NULL, obj_buf, obj_buf_sz, &opts)); + return libbpf_ptr(bpf_object_open(NULL, obj_buf, obj_buf_sz, &opts)); } static int bpf_object_unload(struct bpf_object *obj) diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c index 94e03df69d71..8daca0ac909f 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -217,14 +217,16 @@ static bool found; static int libbpf_debug_print(enum libbpf_print_level level, const char *format, va_list args) { - char *log_buf; + const char *log_buf; if (level != LIBBPF_WARN || - strcmp(format, "libbpf: \n%s\n")) { + !strstr(format, "-- BEGIN PROG LOAD LOG --")) { vprintf(format, args); return 0; } + /* skip prog_name */ + va_arg(args, char *); log_buf = va_arg(args, char *); if (!log_buf) goto out;