Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
new file mode 100644
index 0000000..d04c7cb
--- /dev/null
+++ b/tools/lib/bpf/libbpf.map
@@ -0,0 +1,192 @@
+LIBBPF_0.0.1 {
+	global:
+		bpf_btf_get_fd_by_id;
+		bpf_create_map;
+		bpf_create_map_in_map;
+		bpf_create_map_in_map_node;
+		bpf_create_map_name;
+		bpf_create_map_node;
+		bpf_create_map_xattr;
+		bpf_load_btf;
+		bpf_load_program;
+		bpf_load_program_xattr;
+		bpf_map__btf_key_type_id;
+		bpf_map__btf_value_type_id;
+		bpf_map__def;
+		bpf_map__fd;
+		bpf_map__is_offload_neutral;
+		bpf_map__name;
+		bpf_map__next;
+		bpf_map__pin;
+		bpf_map__prev;
+		bpf_map__priv;
+		bpf_map__reuse_fd;
+		bpf_map__set_ifindex;
+		bpf_map__set_inner_map_fd;
+		bpf_map__set_priv;
+		bpf_map__unpin;
+		bpf_map_delete_elem;
+		bpf_map_get_fd_by_id;
+		bpf_map_get_next_id;
+		bpf_map_get_next_key;
+		bpf_map_lookup_and_delete_elem;
+		bpf_map_lookup_elem;
+		bpf_map_update_elem;
+		bpf_obj_get;
+		bpf_obj_get_info_by_fd;
+		bpf_obj_pin;
+		bpf_object__btf_fd;
+		bpf_object__close;
+		bpf_object__find_map_by_name;
+		bpf_object__find_map_by_offset;
+		bpf_object__find_program_by_title;
+		bpf_object__kversion;
+		bpf_object__load;
+		bpf_object__name;
+		bpf_object__next;
+		bpf_object__open;
+		bpf_object__open_buffer;
+		bpf_object__open_xattr;
+		bpf_object__pin;
+		bpf_object__pin_maps;
+		bpf_object__pin_programs;
+		bpf_object__priv;
+		bpf_object__set_priv;
+		bpf_object__unload;
+		bpf_object__unpin_maps;
+		bpf_object__unpin_programs;
+		bpf_perf_event_read_simple;
+		bpf_prog_attach;
+		bpf_prog_detach;
+		bpf_prog_detach2;
+		bpf_prog_get_fd_by_id;
+		bpf_prog_get_next_id;
+		bpf_prog_load;
+		bpf_prog_load_xattr;
+		bpf_prog_query;
+		bpf_prog_test_run;
+		bpf_prog_test_run_xattr;
+		bpf_program__fd;
+		bpf_program__is_kprobe;
+		bpf_program__is_perf_event;
+		bpf_program__is_raw_tracepoint;
+		bpf_program__is_sched_act;
+		bpf_program__is_sched_cls;
+		bpf_program__is_socket_filter;
+		bpf_program__is_tracepoint;
+		bpf_program__is_xdp;
+		bpf_program__load;
+		bpf_program__next;
+		bpf_program__nth_fd;
+		bpf_program__pin;
+		bpf_program__pin_instance;
+		bpf_program__prev;
+		bpf_program__priv;
+		bpf_program__set_expected_attach_type;
+		bpf_program__set_ifindex;
+		bpf_program__set_kprobe;
+		bpf_program__set_perf_event;
+		bpf_program__set_prep;
+		bpf_program__set_priv;
+		bpf_program__set_raw_tracepoint;
+		bpf_program__set_sched_act;
+		bpf_program__set_sched_cls;
+		bpf_program__set_socket_filter;
+		bpf_program__set_tracepoint;
+		bpf_program__set_type;
+		bpf_program__set_xdp;
+		bpf_program__title;
+		bpf_program__unload;
+		bpf_program__unpin;
+		bpf_program__unpin_instance;
+		bpf_prog_linfo__free;
+		bpf_prog_linfo__new;
+		bpf_prog_linfo__lfind_addr_func;
+		bpf_prog_linfo__lfind;
+		bpf_raw_tracepoint_open;
+		bpf_set_link_xdp_fd;
+		bpf_task_fd_query;
+		bpf_verify_program;
+		btf__fd;
+		btf__find_by_name;
+		btf__free;
+		btf__get_from_id;
+		btf__name_by_offset;
+		btf__new;
+		btf__resolve_size;
+		btf__resolve_type;
+		btf__type_by_id;
+		libbpf_attach_type_by_name;
+		libbpf_get_error;
+		libbpf_prog_type_by_name;
+		libbpf_set_print;
+		libbpf_strerror;
+	local:
+		*;
+};
+
+LIBBPF_0.0.2 {
+	global:
+		bpf_probe_helper;
+		bpf_probe_map_type;
+		bpf_probe_prog_type;
+		bpf_map__resize;
+		bpf_map_lookup_elem_flags;
+		bpf_object__btf;
+		bpf_object__find_map_fd_by_name;
+		bpf_get_link_xdp_id;
+		btf__dedup;
+		btf__get_map_kv_tids;
+		btf__get_nr_types;
+		btf__get_raw_data;
+		btf__load;
+		btf_ext__free;
+		btf_ext__func_info_rec_size;
+		btf_ext__get_raw_data;
+		btf_ext__line_info_rec_size;
+		btf_ext__new;
+		btf_ext__reloc_func_info;
+		btf_ext__reloc_line_info;
+		xsk_umem__create;
+		xsk_socket__create;
+		xsk_umem__delete;
+		xsk_socket__delete;
+		xsk_umem__fd;
+		xsk_socket__fd;
+		bpf_program__get_prog_info_linear;
+		bpf_program__bpil_addr_to_offs;
+		bpf_program__bpil_offs_to_addr;
+} LIBBPF_0.0.1;
+
+LIBBPF_0.0.3 {
+	global:
+		bpf_map__is_internal;
+		bpf_map_freeze;
+		btf__finalize_data;
+} LIBBPF_0.0.2;
+
+LIBBPF_0.0.4 {
+	global:
+		bpf_link__destroy;
+		bpf_object__load_xattr;
+		bpf_program__attach_kprobe;
+		bpf_program__attach_perf_event;
+		bpf_program__attach_raw_tracepoint;
+		bpf_program__attach_tracepoint;
+		bpf_program__attach_uprobe;
+		btf_dump__dump_type;
+		btf_dump__free;
+		btf_dump__new;
+		btf__parse_elf;
+		libbpf_num_possible_cpus;
+		perf_buffer__free;
+		perf_buffer__new;
+		perf_buffer__new_raw;
+		perf_buffer__poll;
+		xsk_umem__create;
+} LIBBPF_0.0.3;
+
+LIBBPF_0.0.5 {
+	global:
+		bpf_btf_get_next_id;
+} LIBBPF_0.0.4;