li r0,__got2_entries at sectoff@l

[youhello youhello]

hi all:
i am a u-boot beginner, i found a line code "li r0,__got2_entries at sectoff@l"
in almost all mpc start.s.i have tried to delete sectoff and i got same
result of uboot with "li r0,__got2_entries at l". could you tell me what
difference between "li r0,__got2_entries at sectoff@l" and "li
r0,__got2_entries at l" and why the author use "li r0,__got2_entries at sectoff@l"
but not  "li r0,__got2_entries at l".thanks very much.
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