>> 1 # For the pre-R6 code in arch/mips/vdso/vdso.h for locating
>> 2 # the base address of VDSO, the linker will emit a R_MIPS_PC32
>> 3 # relocation in binutils > 2.25 but it will fail with older versions
>> 4 # because that relocation is not supported for that symbol. As a result
>> 5 # of which we are forced to disable the VDSO symbols when building
>> 6 # with < 2.25 binutils on pre-R6 kernels. For more references on why we
>> 7 # can't use other methods to get the base address of VDSO please refer to
>> 8 # the comments on that file.
>> 9 #
1 # GCC (at least up to version 9.2) appears to 10 # GCC (at least up to version 9.2) appears to emit function calls that make use
2 # of the GOT when targeting microMIPS, which w 11 # of the GOT when targeting microMIPS, which we can't use in the VDSO due to
3 # the lack of relocations. As such, we disable 12 # the lack of relocations. As such, we disable the VDSO for microMIPS builds.
4 13
>> 14 config MIPS_LD_CAN_LINK_VDSO
>> 15 def_bool LD_VERSION >= 22500 || LD_IS_LLD
>> 16
5 config MIPS_DISABLE_VDSO 17 config MIPS_DISABLE_VDSO
6 def_bool CPU_MICROMIPS !! 18 def_bool CPU_MICROMIPS || (!CPU_MIPSR6 && !MIPS_LD_CAN_LINK_VDSO)
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