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2016 Sep 07
5
[LLD] Writing thunks before the corresponding section
Hi,
MIPS LA25 thunk is used to call PIC function from non-PIC code.
Usually it contains three instructions:
lui $25, %hi(func)
addiu $25, $25, %lo(func)
j func
We can write such thunk in an arbitrary place of the generated file.
But if a PIC function requires the thunk is the first routine in a
section, we can optimize the code and escape jump instruction. To do
so we just write the