new file mode 100644
@@ -0,0 +1,291 @@
+Size with lwip stack + ping app + http wget app related
+to original U-boot is:
+
+Total: Before=546322, After=594494, chg +8.82%
+Total: Before=99215, After=100365, chg +1.16%
+Total: Before=77777, After=78227, chg +0.58%
+
+(gdb) p (594494-546322) + (100365-99215) + (78227-77777)
+$1 = 49772
+(gdb) p 49772 / 1024
+$2 = 48
+
+Size will be increased on 48Kib.
+
+Full log:
+linux/scripts/bloat-o-meter -c u-boot_orig/u-boot u-boot/u-boot
+add/remove: 187/0 grow/shrink: 2/0 up/down: 48172/0 (48172)
+Function old new delta
+tcp_input - 4364 +4364
+tcp_receive - 3444 +3444
+tcp_write - 2192 +2192
+ip4_reass - 2096 +2096
+tcp_output - 1616 +1616
+tcp_slowtmr - 1572 +1572
+httpc_tcp_recv - 1044 +1044
+udp_input - 812 +812
+ip4_frag - 748 +748
+tcp_close_shutdown - 716 +716
+ip4_input - 688 +688
+icmp_input - 672 +672
+tcp_split_unsent_seg - 660 +660
+ip4_output_if_src - 612 +612
+tcp_connect - 608 +608
+etharp_input - 568 +568
+httpc_init_connection_common.constprop - 556 +556
+etharp_query - 556 +556
+ip_reass_free_complete_datagram - 520 +520
+etharp_output - 512 +512
+pbuf_alloc - 488 +488
+tcp_alloc - 484 +484
+pbuf_copy_partial_pbuf - 484 +484
+etharp_find_entry - 476 +476
+tcp_enqueue_flags - 440 +440
+tcp_create_segment - 424 +424
+tcp_abandon - 420 +420
+netif_add - 412 +412
+etharp_raw - 408 +408
+tcp_zero_window_probe - 400 +400
+raw_sendto_if_src - 360 +360
+tcp_pcb_remove - 356 +356
+raw_input - 352 +352
+pbuf_realloc - 336 +336
+tcp_free_acked_segments.constprop - 328 +328
+pbuf_free - 328 +328
+icmp_send_response - 324 +324
+tcp_output_alloc_header_common.constprop - 316 +316
+tcp_oos_insert_segment - 312 +312
+netif_loop_output - 296 +296
+httpc_create_request_string.constprop.isra - 292 +292
+ethernet_input - 284 +284
+etharp_output_to_arp_index - 280 +280
+tcp_rexmit - 276 +276
+netif_poll - 276 +276
+ip_reass_remove_oldest_datagram - 272 +272
+tcp_rexmit_rto_prepare - 260 +260
+tcp_pbuf_prealloc - 260 +260
+ping_send - 256 +256
+tcp_parseopt - 244 +244
+ping_recv - 244 +244
+ethernet_output - 236 +236
+inet_chksum_pseudo - 216 +216
+ip4addr_ntoa_r - 212 +212
+tcp_send_fin - 208 +208
+tcp_process_refused_data - 208 +208
+pbuf_copy_partial - 208 +208
+netif_set_addr - 204 +204
+tcp_output_control_segment_netif - 200 +200
+tcp_fasttmr - 200 +200
+pbuf_cat - 200 +200
+uboot_lwip_init - 196 +196
+lwip_wget - 192 +192
+tcp_rst_common.isra - 188 +188
+ip4_route - 188 +188
+tcp_update_rcv_ann_wnd - 184 +184
+sys_timeout_abs - 184 +184
+pbuf_memcmp - 184 +184
+tcp_recved - 180 +180
+pbuf_add_header_impl - 176 +176
+lwip_ping_init - 176 +176
+netif_do_set_ipaddr.isra - 172 +172
+httpc_free_state - 172 +172
+tcp_close_shutdown_fin - 168 +168
+httpc_recv - 168 +168
+tcp_send_empty_ack - 164 +164
+tcp_output_control_segment - 164 +164
+do_ops - 164 +164
+tcp_rexmit_fast - 160 +160
+raw_sendto - 160 +160
+do_lwip_ping - 156 +156
+pbuf_remove_header - 144 +144
+uboot_lwip_if_init - 140 +140
+tcp_input_delayed_close - 140 +140
+do_lwip_wget - 140 +140
+tcp_keepalive - 136 +136
+tcp_output_alloc_header.constprop - 132 +132
+tcp_netif_ip_addr_changed - 132 +132
+inet_chksum_pbuf - 132 +132
+pbuf_memfind - 128 +128
+pbuf_alloc_reference - 128 +128
+lwip_standard_chksum - 128 +128
+tcp_pcb_purge - 124 +124
+tcp_new_port - 124 +124
+pbuf_free_header - 120 +120
+tcp_rst_netif - 116 +116
+tcp_netif_ip_addr_changed_pcblist - 116 +116
+netif_issue_reports - 116 +116
+tcpip_try_callback - 112 +112
+tcp_poll - 112 +112
+tcp_eff_send_mss_netif - 112 +112
+ip_reass_dequeue_datagram - 112 +112
+ip4_input_accept - 112 +112
+httpc_tcp_connected - 112 +112
+etharp_free_entry - 112 +112
+tcp_rst - 108 +108
+ping_timeout - 108 +108
+low_level_input.constprop - 108 +108
+tcp_seg_copy - 104 +104
+tcp_next_iss - 104 +104
+sys_timeout - 104 +104
+httpc_get_internal_addr - 104 +104
+tcp_recv_null - 96 +96
+pbuf_clone - 96 +96
+tcp_rexmit_rto - 92 +92
+ip4_addr_isbroadcast_u32 - 92 +92
+tcp_sent - 88 +88
+tcp_rexmit_rto_commit - 88 +88
+tcp_recv - 88 +88
+tcp_kill_state - 88 +88
+tcp_err - 88 +88
+raw_new - 88 +88
+lwip_ping_send_now - 84 +84
+tcp_output_segment_busy - 80 +80
+tcp_get_next_optbyte - 80 +80
+tcp_free - 80 +80
+pbuf_alloced_custom - 80 +80
+ipfrag_free_pbuf_custom - 80 +80
+httpc_close - 80 +80
+uboot_lwip_poll - 76 +76
+tcpip_tcp_timer - 76 +76
+udp_netif_ip_addr_changed - 72 +72
+raw_netif_ip_addr_changed - 72 +72
+ip_frag_free_pbuf_custom_ref - 72 +72
+tcp_timer_needed - 68 +68
+tcp_close - 68 +68
+mem_free - 68 +68
+ethernetif_input - 68 +68
+pbuf_try_get_at - 64 +64
+pbuf_ref - 60 +60
+net_process_received_packet 768 828 +60
+memp_malloc - 60 +60
+tcp_seg_free - 56 +56
+netif_get_by_index - 56 +56
+low_level_output - 56 +56
+tcp_tmr - 52 +52
+tcp_segs_free - 48 +48
+pbuf_skip_const - 48 +48
+pbuf_copy - 48 +48
+httpc_tcp_poll - 48 +48
+tcp_free_ooseq - 44 +44
+pbuf_free_ooseq_callback - 44 +44
+netif_set_up - 44 +44
+netif_set_link_up - 44 +44
+tcp_output_fill_options.constprop - 40 +40
+etharp_request - 40 +40
+do_lwip_info - 40 +40
+raw_bind - 36 +36
+pbuf_chain - 36 +36
+memp_free - 36 +36
+ip4_output_if - 36 +36
+pbuf_header_force - 32 +32
+pbuf_clen - 32 +32
+inet_chksum - 32 +32
+pbuf_get_at - 28 +28
+httpc_tcp_err - 28 +28
+do_lwip_init - 28 +28
+sys_now - 24 +24
+tcp_trigger_input_pcb_close - 20 +20
+eth_send 116 136 +20
+lwip_loop_set - 16 +16
+ip4addr_ntoa - 16 +16
+tcp_arg - 12 +12
+lwip_loop_is_done - 12 +12
+lwip_enabled - 12 +12
+icmp_time_exceeded - 12 +12
+icmp_dest_unreach - 12 +12
+tcp_new - 8 +8
+tcp_abort - 8 +8
+raw_recv - 8 +8
+pbuf_add_header - 8 +8
+netif_null_output_ip4 - 8 +8
+lwip_htons - 8 +8
+lwip_htonl - 8 +8
+httpc_tcp_sent - 8 +8
+mem_trim - 4 +4
+mem_malloc - 4 +4
+ip_chksum_pseudo - 4 +4
+httpc_init_connection - 4 +4
+Total: Before=546322, After=594494, chg +8.82%
+add/remove: 53/0 grow/shrink: 0/0 up/down: 1150/0 (1150)
+Data old new delta
+arp_table - 400 +400
+cmds - 224 +224
+uboot_netif - 96 +96
+_u_boot_list_2_cmd_2_lwipinfo - 56 +56
+_u_boot_list_2_cmd_2_lwip - 56 +56
+ip_data - 40 +40
+inseg - 32 +32
+settings - 24 +24
+str - 16 +16
+udp_pcbs - 8 +8
+tcpip_mbox - 8 +8
+tcphdr_opt2 - 8 +8
+tcphdr - 8 +8
+tcp_tw_pcbs - 8 +8
+tcp_listen_pcbs - 8 +8
+tcp_input_pcb - 8 +8
+tcp_bound_pcbs - 8 +8
+tcp_active_pcbs - 8 +8
+recv_data - 8 +8
+reassdatagrams - 8 +8
+raw_pcbs - 8 +8
+ping_target - 8 +8
+ping_pcb - 8 +8
+next_timeout - 8 +8
+netif_list - 8 +8
+netif_default - 8 +8
+daddr - 8 +8
+uboot_net_use_lwip - 4 +4
+tcpip_tcp_timer_active - 4 +4
+tcp_ticks - 4 +4
+seqno - 4 +4
+ping_time - 4 +4
+loop_lwip - 4 +4
+iss - 4 +4
+ip_target - 4 +4
+ackno - 4 +4
+tcplen - 2 +2
+tcphdr_optlen - 2 +2
+tcphdr_opt1len - 2 +2
+tcp_port - 2 +2
+tcp_optidx - 2 +2
+recv_acked - 2 +2
+ping_seq_num - 2 +2
+ip_reass_pbufcount - 2 +2
+ip_id - 2 +2
+tcp_timer_ctr - 1 +1
+tcp_timer - 1 +1
+tcp_active_pcbs_changed - 1 +1
+recv_flags - 1 +1
+pbuf_free_ooseq_pending - 1 +1
+netif_num - 1 +1
+flags - 1 +1
+etharp_cached_entry - 1 +1
+Total: Before=99215, After=100365, chg +1.16%
+add/remove: 21/0 grow/shrink: 2/0 up/down: 450/0 (450)
+RO Data old new delta
+memp_pools - 112 +112
+tcp_pcb_lists - 32 +32
+version_string 46 70 +24
+__func__ 1317 1339 +22
+memp_UDP_PCB - 16 +16
+memp_TCP_SEG - 16 +16
+memp_TCP_PCB_LISTEN - 16 +16
+memp_TCP_PCB - 16 +16
+memp_TCPIP_MSG_INPKT - 16 +16
+memp_TCPIP_MSG_API - 16 +16
+memp_SYS_TIMEOUT - 16 +16
+memp_REASSDATA - 16 +16
+memp_RAW_PCB - 16 +16
+memp_PBUF_POOL - 16 +16
+memp_PBUF - 16 +16
+memp_NETCONN - 16 +16
+memp_NETBUF - 16 +16
+memp_FRAG_PBUF - 16 +16
+tcp_backoff - 13 +13
+tcp_persist_backoff - 7 +7
+ethzero - 6 +6
+ethbroadcast - 6 +6
+ip_addr_any - 4 +4
+Total: Before=77777, After=78227, chg +0.58%
+
Add doc with size calculation accoding to original u-boot. Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org> --- doc/README.lwip.size | 291 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100644 doc/README.lwip.size