Dear U-boot mailing list
During the development of a boot loader for a Marvel armv7-a Ethernet switch (98DX3235) I found a linker problem causing u-boot to not recognize any commands.
Development tools:
u-boot 2013.01 with 2016_T1.0.eng_drop_v6 Marvell modifications extracted over it.
CROSS_COMPILER = armv7-marvell-linux-gnueabi-hard-4.6.4_64K_i686_20160226/bin/arm-marvell-linux-gnueabi-
CROSS_COMPILE_BH = armv7-marvell-linux-gnueabi-hard-4.6.4_64K_i686_20160226/bin/arm-marvell-linux-gnueabi-
To be clear I was able to compile, Load trough UART and even execute u-boot. Everything works fine until I get to the u-boot prompt line. I found out that no commands where recognized by u-boot because the commands are not listed in the right address category.
u-boot searches in a list between 2 address locations, _u_boot_list_cmd__end and _u_boot_list_cmd__start. As you can see in the following address list created by u-boot called System.map, The commands are not sorted between the earlier mentioned address locations
-----------------------------System.map-----------------------------
3076 000b6cd4 D _u_boot_list__end
3077 000b6cd4 D _u_boot_list_cmd_Creset
3078 000b6cf0 D _u_boot_list_cmd_SatR
3079 000b6d0c D _u_boot_list_cmd_active_units
3080 000b6d28 D _u_boot_list_cmd_base
3081 000b6d44 D _u_boot_list_cmd_bdinfo
3082 000b6d60 D _u_boot_list_cmd_boot
3083 000b6d7c D _u_boot_list_cmd_bootd
< " " more commands in list" ">
3193 000b7984 D _u_boot_list_cmd_ubifsmount
3194 000b79a0 D _u_boot_list_cmd_ubifsumount
3195 000b79bc D _u_boot_list_cmd_usb
3196 000b79d8 D _u_boot_list_cmd_usbboot
3197 000b79f4 D _u_boot_list_cmd_version
3198 000b7a10 D _u_boot_list_cmd_whoAmI
3199 000b7a2c D _u_boot_list_env_clbk_baudrate
3200 000b7a34 D _u_boot_list_env_clbk_bootfile
3201 000b7a3c D _u_boot_list_env_clbk_callbacks
3202 000b7a44 D _u_boot_list_env_clbk_console
3203 000b7a4c D _u_boot_list_env_clbk_flags
3204 000b7a54 D _u_boot_list_env_clbk_loadaddr
3205 000b7a5c A __image_copy_end
3206 000b7a5c B __bss_start
3207 000b7a5c D _u_boot_list__start
3208 000b7a5c D _u_boot_list_cmd__end
3209 000b7a5c D _u_boot_list_cmd__start
3210 000b7a5c D _u_boot_list_env_clbk__end
3211 000b7a5c D _u_boot_list_env_clbk__start
--------------------------------------------------------------------------
The following code form include/u-boot.lst shows that the commands should be sorted between the earlier mentioned addresses but they are not.
-----------------------------include/u-boot.lst-----------------------------
1 _u_boot_list__end = .;
2 *(SORT(.u_boot_list.*));
3 _u_boot_list__start = .;
4 _u_boot_list_cmd__end = .;
5 *(SORT(.u_boot_list.cmd.*));
6 _u_boot_list_cmd__start = .;
7 _u_boot_list_env_clbk__end = .;
8 *(SORT(.u_boot_list.env_clbk.*));
9 _u_boot_list_env_clbk__start = .; -------------------------------------------------------------------------------------
I would like you to rank posible solutions listed below - Am I using the wrong cross compiler? - Should I not use the same cross compiler for u-boot and the binary header? - Should the sorting order be ending with the sorting of u_boot_list prefixes so the others get sorted first? - Do you have another possible solution?
Great thanks for all help of the u-boot mailing list
Kind regards,
Dennis Jacobs